/* ==========================================
   RESET & GLOBALS - LIGHT THEME
   ========================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #3b82f6;
    --primary-light: #60a5fa;
    --primary-dark: #2563eb;
    --secondary: #38bdf8;
    --accent: #93c5fd;
    --gold: #f5b964;

    --bg-main: #f5faff;
    --bg-soft: #e6f1fe;
    --bg-white: #ffffff;
    --bg-card: rgba(255, 255, 255, 0.75);

    --text-dark: #1e293b;
    --text-medium: #475569;
    --text-light: #94a3b8;

    --border-light: rgba(59, 130, 246, 0.14);
    --border-soft: rgba(30, 41, 59, 0.06);

    --gradient-1: linear-gradient(135deg, #3b82f6 0%, #60a5fa 100%);
    --gradient-2: linear-gradient(135deg, #60a5fa 0%, #2563eb 100%);
    --gradient-3: linear-gradient(135deg, #3b82f6 0%, #38bdf8 100%);
    --gradient-soft: linear-gradient(135deg, #e6f1fe 0%, #cce4fc 100%);
    --gradient-rainbow: linear-gradient(90deg, #2563eb, #3b82f6, #60a5fa, #93c5fd, #bae6fd, #2563eb);

    --shadow-sm: 0 2px 8px rgba(59, 130, 246, 0.10);
    --shadow-md: 0 8px 25px rgba(59, 130, 246, 0.14);
    --shadow-lg: 0 15px 40px rgba(59, 130, 246, 0.20);
    --shadow-glow: 0 10px 40px rgba(59, 130, 246, 0.25);
    --shadow-glow-pink: 0 10px 40px rgba(56, 189, 248, 0.25);
    --shadow-card: 0 10px 30px rgba(30, 41, 59, 0.06);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    -webkit-tap-highlight-color: transparent;
    overflow-x: hidden;
    max-width: 100vw;
}

body {
    font-family: 'Poppins', sans-serif;
    background: var(--bg-main);
    color: var(--text-dark);
    overflow-x: hidden;
    max-width: 100vw;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    position: relative;
}

/* iOS Safari için touch target ve overflow ayarları */
img, video {
    max-width: 100%;
    height: auto;
}

button, a {
    -webkit-tap-highlight-color: transparent;
}

@media (max-width: 768px) {
    /* Touch hedefleri minimum 44px (Apple HIG) */
    .nav-link, .btn, .course-btn, .social-link, .info-card,
    .ig-card, .testimonial-card, .form-group input,
    .form-group textarea, .form-group select, .hamburger {
        min-height: 44px;
    }

    .test-text {
        -webkit-overflow-scrolling: touch;
    }
}

::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-soft);
}

::-webkit-scrollbar-thumb {
    background: var(--gradient-1);
    border-radius: 5px;
}

::selection {
    background: var(--primary);
    color: white;
}

/* ==========================================
   INTRO LOADER
   ========================================== */
.loader {
    position: fixed;
    inset: 0;
    background: linear-gradient(135deg, #f5faff 0%, #e6f1fe 100%);
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.8s ease, visibility 0.8s ease;
}

.loader.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader-content {
    text-align: center;
}

.loader-book {
    width: 140px;
    height: 100px;
    margin: 0 auto 40px;
    position: relative;
    perspective: 1200px;
}

.loader-page {
    position: absolute;
    width: 70px;
    height: 100px;
    background: linear-gradient(135deg, #60a5fa 0%, #38bdf8 100%);
    left: 70px;
    transform-origin: left center;
    border-radius: 0 8px 8px 0;
    animation: loaderFlip 2s infinite;
    box-shadow:
        0 8px 25px rgba(59, 130, 246, 0.35),
        inset -4px 0 12px rgba(255, 255, 255, 0.15);
    border: 2px solid rgba(255, 255, 255, 0.5);
    border-left: none;
}

.loader-page::before {
    content: '';
    position: absolute;
    top: 12px;
    left: 10px;
    right: 10px;
    height: 4px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 2px;
    box-shadow:
        0 12px 0 rgba(255, 255, 255, 0.6),
        0 24px 0 rgba(255, 255, 255, 0.6),
        0 36px 0 rgba(255, 255, 255, 0.5),
        0 48px 0 rgba(255, 255, 255, 0.5),
        0 60px 0 rgba(255, 255, 255, 0.4);
}

.loader-page:nth-child(1) { animation-delay: 0s; }
.loader-page:nth-child(2) { animation-delay: 0.5s; }
.loader-page:nth-child(3) { animation-delay: 1s; }
.loader-page:nth-child(4) { animation-delay: 1.5s; }

@keyframes loaderFlip {
    0%, 100% { transform: rotateY(0); }
    50% { transform: rotateY(-180deg); }
}

.loader-text {
    font-family: 'Playfair Display', serif;
    font-size: 2.5rem;
    font-weight: 900;
    letter-spacing: 8px;
    margin-bottom: 30px;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.loader-text span {
    display: inline-block;
    animation: loaderBounce 1.5s infinite;
}

.loader-space {
    width: 20px;
}

@keyframes loaderBounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.loader-text span:nth-child(1) { animation-delay: 0s; }
.loader-text span:nth-child(2) { animation-delay: 0.1s; }
.loader-text span:nth-child(3) { animation-delay: 0.2s; }
.loader-text span:nth-child(4) { animation-delay: 0.3s; }
.loader-text span:nth-child(5) { animation-delay: 0.4s; }
.loader-text span:nth-child(7) { animation-delay: 0.5s; }
.loader-text span:nth-child(8) { animation-delay: 0.6s; }
.loader-text span:nth-child(9) { animation-delay: 0.7s; }
.loader-text span:nth-child(10) { animation-delay: 0.8s; }
.loader-text span:nth-child(11) { animation-delay: 0.9s; }

.loader-bar {
    width: 250px;
    height: 4px;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 2px;
    margin: 0 auto 15px;
    overflow: hidden;
}

.loader-bar-fill {
    height: 100%;
    background: var(--gradient-1);
    border-radius: 2px;
    width: 0%;
    box-shadow: 0 0 15px var(--primary-light);
    transition: width 0.1s linear;
}

.loader-percent {
    color: var(--text-medium);
    font-family: 'Space Mono', monospace;
    font-size: 0.9rem;
}

/* ==========================================
   SCROLL PROGRESS
   ========================================== */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: var(--gradient-rainbow);
    background-size: 300% 100%;
    z-index: 10001;
    transition: width 0.1s ease;
    box-shadow: 0 0 10px rgba(59, 130, 246, 0.4);
    animation: rainbowMove 5s linear infinite;
}

@keyframes rainbowMove {
    0% { background-position: 0% 0; }
    100% { background-position: 300% 0; }
}

/* ==========================================
   CURSOR TRAIL
   ========================================== */
#cursorTrail {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9998;
}

@media (max-width: 768px) {
    #cursorTrail {
        display: none;
    }
}

/* ==========================================
   PARTICLE CANVAS
   ========================================== */
#particleCanvas {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
    opacity: 0.7;
}

/* ==========================================
   WHATSAPP FLOAT
   ========================================== */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    left: 30px;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #25d366, #128c7e);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 999;
    box-shadow: 0 10px 30px rgba(37, 211, 102, 0.4);
    transition: all 0.3s;
    text-decoration: none;
}

.whatsapp-float:hover {
    transform: scale(1.1) rotate(-10deg);
    box-shadow: 0 15px 40px rgba(37, 211, 102, 0.6);
}

.whatsapp-tooltip {
    position: absolute;
    left: 75px;
    background: white;
    color: #128c7e;
    padding: 8px 15px;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.85rem;
    white-space: nowrap;
    opacity: 0;
    transform: translateX(-10px);
    transition: all 0.3s;
    pointer-events: none;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.whatsapp-float:hover .whatsapp-tooltip {
    opacity: 1;
    transform: translateX(0);
}

.whatsapp-pulse {
    position: absolute;
    inset: 0;
    border-radius: 50%;
    background: #25d366;
    animation: whatsappPulse 2s infinite;
    z-index: -1;
}

@keyframes whatsappPulse {
    0% { transform: scale(1); opacity: 0.7; }
    100% { transform: scale(1.6); opacity: 0; }
}

/* ==========================================
   NAVBAR
   ========================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    transition: all 0.4s ease;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    padding: 12px 0;
    box-shadow: 0 5px 30px rgba(59, 130, 246, 0.08);
    border-bottom: 1px solid var(--border-light);
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 800;
    font-size: 1.5rem;
    transition: transform 0.3s;
}

.logo:hover {
    transform: scale(1.05);
}

.logo-icon-wrap {
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: logoFloat 3s ease-in-out infinite;
}

.logo-icon-wrap svg {
    width: 100%;
    height: 100%;
    filter: drop-shadow(0 4px 10px rgba(96, 165, 250, 0.3));
}

@keyframes logoFloat {
    0%, 100% { transform: translateY(0) rotate(0); }
    50% { transform: translateY(-5px) rotate(5deg); }
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1;
    gap: 2px;
}

.logo-prefix {
    font-size: 0.6rem;
    letter-spacing: 3px;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--primary);
}

.logo-main {
    font-size: 1.4rem;
    font-weight: 800;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    white-space: nowrap;
}

.logo-accent {
    color: var(--text-dark);
    -webkit-text-fill-color: var(--text-dark);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 32px;
    align-items: center;
}

.nav-link {
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    transition: color 0.3s;
}

.nav-link:not(.cta-link)::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--gradient-1);
    transition: width 0.3s;
    border-radius: 2px;
}

.nav-link:hover {
    color: var(--primary);
}

.nav-link:hover::after {
    width: 100%;
}

.cta-link {
    background: var(--gradient-1);
    color: #ffffff !important;
    padding: 10px 24px;
    border-radius: 50px;
    transition: all 0.3s;
    box-shadow: 0 5px 15px rgba(59, 130, 246, 0.3);
    position: relative;
    overflow: hidden;
}

.cta-link::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-3);
    opacity: 0;
    transition: opacity 0.3s;
    z-index: -1;
}

.cta-link:hover {
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(59, 130, 246, 0.45);
}

.cta-link:hover::before {
    opacity: 1;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
    z-index: 1001;
}

.hamburger span {
    width: 28px;
    height: 3px;
    background: var(--text-dark);
    border-radius: 3px;
    transition: all 0.3s;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(7px, 7px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* ==========================================
   HERO SECTION
   ========================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding: 120px 30px 60px;
    background: linear-gradient(180deg, #ffffff 0%, #e6f1fe 100%);
    max-width: 100vw;
    width: 100%;
    box-sizing: border-box;
}

.hero-visual {
    overflow: hidden;
    max-width: 100%;
    width: 100%;
    box-sizing: border-box;
}

.hero-3d-scene {
    max-width: 100%;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
    transition: transform 0.3s ease-out;
}

.grid-overlay {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(59, 130, 246, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(59, 130, 246, 0.05) 1px, transparent 1px);
    background-size: 50px 50px;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.25;
    animation: floatOrb 15s infinite ease-in-out;
}

.orb-1 {
    width: 500px;
    height: 500px;
    background: var(--primary);
    top: -100px;
    left: -100px;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: var(--secondary);
    bottom: -50px;
    right: -50px;
    animation-delay: 5s;
}

.orb-3 {
    width: 350px;
    height: 350px;
    background: var(--accent);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: 10s;
}

@keyframes floatOrb {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(50px, -50px) scale(1.1); }
    66% { transform: translate(-30px, 30px) scale(0.9); }
}

.hero-container {
    max-width: 1280px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 2;
    width: 100%;
}

.hero-content {
    animation: slideInLeft 1s ease-out;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hero-content .hero-description {
    margin-left: auto;
    margin-right: auto;
}

.hero-content .hero-buttons {
    justify-content: center;
}

.hero-content .hero-stats {
    justify-content: center;
}

@keyframes slideInLeft {
    from { opacity: 0; transform: translateX(-50px); }
    to { opacity: 1; transform: translateX(0); }
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(255, 255, 255, 0.8);
    border: 1px solid var(--border-light);
    padding: 10px 20px;
    border-radius: 50px;
    font-size: 0.85rem;
    margin-bottom: 25px;
    backdrop-filter: blur(10px);
    transition: opacity 0.4s, transform 0.4s;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.08);
    color: var(--text-medium);
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: #10b981;
    border-radius: 50%;
    animation: pulseDot 2s infinite;
    flex-shrink: 0;
}

@keyframes pulseDot {
    0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
    50% { opacity: 0.6; box-shadow: 0 0 0 10px rgba(16, 185, 129, 0); }
}

.hero-title {
    font-family: 'Playfair Display', serif;
    font-size: clamp(2.2rem, 6vw, 5.5rem);
    font-weight: 900;
    line-height: 1.05;
    margin-bottom: 25px;
    color: var(--text-dark);
    overflow-wrap: break-word;
    word-break: break-word;
}

html, body {
    max-width: 100vw;
}

/* ============== HARFLER ETRAFTAN GELİP BİRLEŞİR ============== */
.title-word {
    display: inline-block;
    vertical-align: top;
}

.title-word .char,
.scatter-char {
    display: inline-block;
    opacity: 0;
    transform: translate(var(--tx, 0px), var(--ty, 0px)) rotate(var(--tr, 0deg)) scale(0.3);
    transition: transform 0.9s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.6s ease;
    will-change: transform, opacity;
}

.title-word.active .char,
.scatter-active .scatter-char {
    opacity: 1;
    transform: translate(0, 0) rotate(0) scale(1);
}

.gradient-text {
    background: var(--gradient-1);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
    animation: gradientMove 4s ease infinite;
}

/* Gradient text içindeki scatter karakterler de gradient olsun */
.gradient-text .scatter-char,
.gradient-text .char {
    background: var(--gradient-1);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientMove 4s ease infinite;
}

@keyframes gradientMove {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.hero-description {
    font-size: 1.15rem;
    color: var(--text-medium);
    margin-bottom: 35px;
    max-width: 520px;
    opacity: 0;
    animation: fadeUp 0.8s 1.5s forwards;
}

.highlight {
    color: var(--primary);
    font-weight: 700;
    position: relative;
    display: inline-block;
}

.highlight::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient-1);
    border-radius: 2px;
}

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

.hero-buttons {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    margin-bottom: 60px;
    opacity: 0;
    animation: fadeUp 0.8s 1.7s forwards;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-family: inherit;
    position: relative;
    overflow: hidden;
    isolation: isolate;
}

.btn-primary {
    background: var(--gradient-1);
    color: #ffffff;
    box-shadow: var(--shadow-glow);
}

.btn-primary::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-3);
    opacity: 0;
    transition: opacity 0.3s;
    z-index: -1;
}

.btn-primary::after {
    content: '';
    position: absolute;
    top: 50%;
    left: -100%;
    width: 100%;
    height: 200%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transform: translateY(-50%) rotate(20deg);
    transition: left 0.6s;
}

.btn-primary:hover::after {
    left: 100%;
}

.btn-primary:hover::before {
    opacity: 1;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(56, 189, 248, 0.4);
}

.btn-secondary {
    background: #ffffff;
    color: var(--text-dark);
    border: 2px solid var(--border-light);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    background: var(--bg-soft);
    border-color: var(--primary);
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(96, 165, 250, 0.2);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-3px);
}

.btn-full {
    width: 100%;
    justify-content: center;
}

.btn-icon {
    display: inline-flex;
    animation: btnIconBounce 1s infinite;
}

@keyframes btnIconBounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-3px); }
}

.hero-stats {
    display: flex;
    gap: 40px;
    align-items: center;
    opacity: 0;
    animation: fadeUp 0.8s 1.9s forwards;
}

.stat-divider {
    width: 1px;
    height: 50px;
    background: linear-gradient(to bottom, transparent, rgba(124,58,237,0.2), transparent);
}

.stat {
    text-align: left;
}

.stat-number {
    font-size: 2.8rem;
    font-weight: 800;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-medium);
    margin-top: 5px;
}

/* ==========================================
   HERO VISUAL - 3D SCENE
   ========================================== */
.hero-visual {
    position: relative;
    height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: slideInRight 1s ease-out;
    perspective: 1500px;
}

@keyframes slideInRight {
    from { opacity: 0; transform: translateX(50px); }
    to { opacity: 1; transform: translateX(0); }
}

.hero-3d-scene {
    position: relative;
    width: 400px;
    height: 400px;
    transform-style: preserve-3d;
    transition: transform 0.5s ease-out;
}

.floating-book {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: bookFloat 4s ease-in-out infinite;
    transform-style: preserve-3d;
}

@keyframes bookFloat {
    0%, 100% { transform: translate(-50%, -50%) translateY(0) rotate(-5deg); }
    50% { transform: translate(-50%, -50%) translateY(-20px) rotate(5deg); }
}

.book-3d {
    width: 200px;
    height: 280px;
    position: relative;
    transform-style: preserve-3d;
    animation: bookRotate 10s linear infinite;
}

@keyframes bookRotate {
    0% { transform: rotateY(0); }
    100% { transform: rotateY(360deg); }
}

.book-cover {
    width: 100%;
    height: 100%;
    position: relative;
    transform-style: preserve-3d;
}

.book-front {
    width: 100%;
    height: 100%;
    background: var(--gradient-1);
    border-radius: 5px 15px 15px 5px;
    position: absolute;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px;
    box-shadow:
        0 10px 60px rgba(59, 130, 246, 0.4),
        inset 0 0 50px rgba(0, 0, 0, 0.15);
    transform: translateZ(15px);
    backface-visibility: hidden;
}

.book-back {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    border-radius: 15px 5px 5px 15px;
    position: absolute;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    box-shadow:
        0 10px 60px rgba(59, 130, 246, 0.4),
        inset 0 0 50px rgba(0, 0, 0, 0.25);
    transform: translateZ(-15px) rotateY(180deg);
    backface-visibility: hidden;
}

.book-back-content {
    text-align: center;
    color: rgba(255, 255, 255, 0.95);
}

.book-back-quote {
    font-family: 'Playfair Display', serif;
    font-size: 5rem;
    line-height: 0.5;
    color: rgba(255, 255, 255, 0.4);
    margin-bottom: 5px;
}

.book-back-content p {
    font-size: 0.95rem;
    font-style: italic;
    line-height: 1.4;
    margin-bottom: 25px;
    padding: 0 10px;
    color: rgba(255, 255, 255, 0.95);
}

.book-back-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    font-size: 0.55rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    color: rgba(255, 255, 255, 0.8);
    padding-top: 15px;
    border-top: 1px solid rgba(255, 255, 255, 0.25);
    white-space: nowrap;
}

.book-back-logo span:first-child,
.book-back-logo span:last-child {
    color: rgba(255, 255, 255, 0.6);
}

.book-spine {
    width: 30px;
    height: 100%;
    background: linear-gradient(90deg, var(--primary-dark), var(--primary));
    position: absolute;
    left: 0;
    top: 0;
    border-radius: 5px 0 0 5px;
    transform: rotateY(-90deg) translateX(-15px) translateZ(15px);
    box-shadow: inset 0 0 15px rgba(0, 0, 0, 0.3);
}

.book-decoration {
    font-size: 4rem;
    margin-bottom: 20px;
    animation: bookDecorFloat 2s infinite ease-in-out;
}

@keyframes bookDecorFloat {
    0%, 100% { transform: scale(1) rotate(0); }
    50% { transform: scale(1.2) rotate(15deg); }
}

.book-title {
    font-family: 'Playfair Display', serif;
    font-size: 1.3rem;
    color: white;
    font-weight: 900;
    text-align: center;
    line-height: 1.15;
    margin-bottom: 10px;
    text-shadow: 0 2px 10px rgba(0,0,0,0.3);
    letter-spacing: 1px;
}

.book-subtitle {
    color: rgba(255,255,255,0.9);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    text-align: center;
    line-height: 1.4;
}

.glow {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--primary) 0%, transparent 70%);
    transform: translate(-50%, -50%);
    filter: blur(40px);
    opacity: 0.25;
    z-index: -1;
    animation: glowPulse 3s infinite ease-in-out;
}

@keyframes glowPulse {
    0%, 100% { opacity: 0.25; transform: translate(-50%, -50%) scale(1); }
    50% { opacity: 0.45; transform: translate(-50%, -50%) scale(1.2); }
}

.orbit {
    position: absolute;
    top: 50%;
    left: 50%;
    border: 1px dashed rgba(96, 165, 250, 0.35);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
}

.orbit-1 {
    width: 480px;
    height: 480px;
    animation: rotate 15s linear infinite;
}

.orbit-2 {
    width: 580px;
    height: 380px;
    animation: rotate 20s linear infinite reverse;
}

.orbit-3 {
    width: 380px;
    height: 580px;
    animation: rotate 18s linear infinite;
}

@keyframes rotate {
    from { transform: translate(-50%, -50%) rotate(0deg); }
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

.orbit-icon {
    position: absolute;
    top: -28px;
    left: 50%;
    transform: translateX(-50%);
    background: #ffffff;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 5px 25px rgba(59, 130, 246, 0.3);
    border: 2px solid var(--primary-light);
}

.orbit-icon span {
    font-size: 1.8rem;
    animation: counterRotate 15s linear infinite;
    display: inline-block;
}

.orbit-2 .orbit-icon span { animation-duration: 20s; animation-direction: reverse; }
.orbit-3 .orbit-icon span { animation-duration: 18s; }

@keyframes counterRotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(-360deg); }
}

.floating-element {
    position: absolute;
    font-size: 2.5rem;
    filter: drop-shadow(0 5px 15px rgba(96, 165, 250, 0.4));
    animation: floatElement 5s ease-in-out infinite;
}

.fe-1 { top: 10%; left: 5%; animation-delay: 0s; }
.fe-2 { top: 15%; right: 5%; animation-delay: 1.2s; }
.fe-3 { bottom: 15%; left: 8%; animation-delay: 2.4s; }
.fe-4 { bottom: 10%; right: 5%; animation-delay: 3.6s; }

@keyframes floatElement {
    0%, 100% { transform: translateY(0) rotate(-10deg); }
    50% { transform: translateY(-30px) rotate(10deg); }
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    font-size: 0.8rem;
    color: var(--text-medium);
    animation: bounce 2s infinite;
    z-index: 5;
}

.mouse {
    width: 25px;
    height: 40px;
    border: 2px solid var(--text-medium);
    border-radius: 15px;
    position: relative;
}

.wheel {
    width: 3px;
    height: 8px;
    background: var(--text-medium);
    border-radius: 3px;
    position: absolute;
    top: 7px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll 1.5s infinite;
}

@keyframes scroll {
    0% { opacity: 1; top: 7px; }
    100% { opacity: 0; top: 20px; }
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(-10px); }
}

/* ==========================================
   MARQUEE BAND
   ========================================== */
.marquee {
    position: relative;
    overflow: hidden;
    background: var(--gradient-1);
    padding: 25px 0;
    transform: rotate(-2deg);
    margin: 50px 0;
    box-shadow: 0 10px 40px rgba(59, 130, 246, 0.2);
}

.marquee-content {
    display: flex;
    gap: 50px;
    align-items: center;
    white-space: nowrap;
    animation: marqueeScroll 30s linear infinite;
    width: max-content;
}

.marquee-content span {
    font-size: 1.5rem;
    font-weight: 800;
    color: white;
    letter-spacing: 2px;
    text-shadow: 0 2px 10px rgba(0,0,0,0.15);
}

@keyframes marqueeScroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* ==========================================
   COMMON SECTIONS
   ========================================== */
section {
    padding: 100px 0;
    position: relative;
    z-index: 1;
    background: var(--bg-main);
    overflow-x: clip;
}

section:nth-child(even) {
    background: var(--bg-soft);
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 30px;
}

.section-header {
    text-align: center;
    margin-bottom: 70px;
}

.section-tag {
    display: inline-block;
    color: var(--primary);
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: 15px;
    padding: 8px 20px;
    background: rgba(59, 130, 246, 0.08);
    border-radius: 50px;
    border: 1px solid var(--border-light);
}

.section-title {
    font-family: 'Playfair Display', serif;
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 900;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.section-subtitle {
    color: var(--text-medium);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* ============================================
   GENERAL REVEAL ANIMATIONS - VARIED PER ELEMENT
   ============================================ */
.reveal {
    opacity: 0;
    transition: all 1s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal:not(.from-left):not(.from-right):not(.zoom-in):not(.flip-in) {
    transform: translateY(60px);
}

.reveal.from-left { transform: translateX(-80px); }
.reveal.from-right { transform: translateX(80px); }
.reveal.zoom-in { transform: scale(0.85); }
.reveal.flip-in {
    transform: perspective(800px) rotateX(-30deg);
    transform-origin: top center;
}

.reveal.active {
    opacity: 1;
    transform: translate(0, 0) scale(1) rotateX(0) rotateY(0);
}

/* Stagger child elements */
.stagger-children > * {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.stagger-children.active > *:nth-child(1) { transition-delay: 0.1s; opacity: 1; transform: translateY(0); }
.stagger-children.active > *:nth-child(2) { transition-delay: 0.2s; opacity: 1; transform: translateY(0); }
.stagger-children.active > *:nth-child(3) { transition-delay: 0.3s; opacity: 1; transform: translateY(0); }
.stagger-children.active > *:nth-child(4) { transition-delay: 0.4s; opacity: 1; transform: translateY(0); }
.stagger-children.active > *:nth-child(5) { transition-delay: 0.5s; opacity: 1; transform: translateY(0); }
.stagger-children.active > *:nth-child(6) { transition-delay: 0.6s; opacity: 1; transform: translateY(0); }

/* ==========================================
   ABOUT SECTION
   ========================================== */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.image-frame {
    position: relative;
    aspect-ratio: 1;
    border-radius: 30px;
    background: var(--gradient-1);
    padding: 5px;
    box-shadow: var(--shadow-glow);
    animation: framePulse 4s infinite ease-in-out;
}

@keyframes framePulse {
    0%, 100% { box-shadow: 0 10px 40px rgba(59, 130, 246, 0.25); }
    50% { box-shadow: 0 20px 60px rgba(56, 189, 248, 0.3); }
}

.image-inner {
    width: 100%;
    height: 100%;
    background: #ffffff;
    border-radius: 25px;
    overflow: hidden;
    position: relative;
}

.image-content {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(124,58,237,0.06), rgba(236,72,153,0.06));
}

.big-emoji {
    font-size: 10rem;
    filter: drop-shadow(0 10px 30px rgba(96, 165, 250, 0.35));
    animation: bigEmojiFloat 3s ease-in-out infinite;
}

.about-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    display: block;
    transition: transform 0.6s ease;
}

.image-frame:hover .about-img {
    transform: scale(1.05);
}

@keyframes bigEmojiFloat {
    0%, 100% { transform: scale(1) rotate(0); }
    50% { transform: scale(1.05) rotate(-5deg); }
}

.image-overlay {
    position: absolute;
    inset: 0;
    background: rgba(59, 130, 246, 0.25);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s;
    backdrop-filter: blur(5px);
}

.image-frame:hover .image-overlay {
    opacity: 1;
}

.play-icon {
    width: 80px;
    height: 80px;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 2rem;
    transform: scale(0);
    transition: transform 0.3s 0.1s;
}

.image-frame:hover .play-icon {
    transform: scale(1);
}

.floating-card {
    position: absolute;
    background: #ffffff;
    backdrop-filter: blur(20px);
    padding: 15px 22px;
    border-radius: 18px;
    display: flex;
    align-items: center;
    gap: 12px;
    border: 1px solid var(--border-light);
    box-shadow: 0 10px 30px rgba(59, 130, 246, 0.15);
    animation: floatCard 4s ease-in-out infinite;
    z-index: 5;
}

.floating-card span {
    font-size: 2rem;
}

.floating-card strong {
    display: block;
    font-size: 1.1rem;
    color: var(--text-dark);
}

.floating-card small {
    color: var(--text-medium);
    font-size: 0.8rem;
}

.card-1 {
    top: 30px;
    right: -40px;
    animation-delay: 0s;
}

.card-2 {
    bottom: 100px;
    left: -50px;
    animation-delay: 1.5s;
}

.card-3 {
    bottom: 30px;
    right: -30px;
    animation-delay: 3s;
}

@keyframes floatCard {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

.about-content h3 {
    font-family: 'Playfair Display', serif;
    font-size: 2.05rem;
    margin-bottom: 20px;
    line-height: 1.25;
    color: var(--text-dark);
    overflow-wrap: break-word;
    word-wrap: break-word;
    -webkit-hyphens: none;
    hyphens: none;
}

.about-lead {
    font-size: 1.2rem;
    color: var(--text-dark);
    margin-bottom: 15px;
    font-weight: 500;
}

.about-content p {
    color: var(--text-medium);
    margin-bottom: 30px;
}

.about-content strong {
    color: var(--primary);
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-bottom: 30px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 10px;
    transition: transform 0.3s;
    color: var(--text-medium);
}

.feature-item:hover {
    transform: translateX(5px);
}

.feature-icon {
    width: 28px;
    height: 28px;
    background: var(--gradient-1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-weight: bold;
    font-size: 0.85rem;
    flex-shrink: 0;
    box-shadow: 0 4px 10px rgba(59, 130, 246, 0.3);
}

/* ==========================================
   COMPARISON SECTION
   ========================================== */
.comparison-grid {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 40px;
    align-items: center;
    max-width: 1100px;
    margin: 0 auto;
}

.comparison-card {
    background: #ffffff;
    border: 1px solid var(--border-soft);
    border-radius: 30px;
    padding: 40px;
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
    transition: transform 0.4s, box-shadow 0.4s;
    box-shadow: var(--shadow-card);
}

.comparison-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.comparison-card.before {
    border-color: rgba(239, 68, 68, 0.2);
}

.comparison-card.after {
    background: linear-gradient(135deg, #ffffff, #e6f1fe);
    border-color: rgba(59, 130, 246, 0.3);
    box-shadow: var(--shadow-glow);
}

.comparison-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.comp-label {
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 3px;
    color: var(--text-medium);
    padding: 6px 15px;
    border-radius: 20px;
    background: var(--bg-soft);
}

.after .comp-label {
    background: var(--gradient-1);
    color: white;
}

.comp-icon {
    font-size: 3rem;
    filter: drop-shadow(0 5px 15px currentColor);
}

.comparison-speed {
    text-align: center;
    margin-bottom: 25px;
}

.speed-number {
    font-size: 5rem;
    font-weight: 900;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    display: block;
    font-family: 'Playfair Display', serif;
}

.before .speed-number {
    background: linear-gradient(135deg, #ef4444, #f5b964);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.speed-unit {
    color: var(--text-medium);
    font-size: 1rem;
    margin-top: 5px;
    display: block;
}

.speed-bar {
    height: 10px;
    background: var(--bg-soft);
    border-radius: 5px;
    overflow: hidden;
    margin-bottom: 25px;
}

.speed-fill {
    height: 100%;
    background: var(--gradient-1);
    border-radius: 5px;
    width: 0;
    transition: width 1.8s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 0 15px rgba(96, 165, 250, 0.5);
}

.before .speed-fill {
    background: linear-gradient(135deg, #ef4444, #f5b964);
    box-shadow: 0 0 15px rgba(239, 68, 68, 0.4);
}

.comp-features {
    list-style: none;
}

.comp-features li {
    padding: 10px 0;
    color: var(--text-medium);
    border-bottom: 1px solid var(--border-soft);
    font-size: 0.95rem;
}

.comp-features li:last-child {
    border-bottom: none;
}

.comparison-arrow {
    text-align: center;
    font-size: 4rem;
}

.arrow-icon {
    font-size: 4rem;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: arrowPulse 1.5s ease-in-out infinite;
    line-height: 1;
}

@keyframes arrowPulse {
    0%, 100% { transform: scale(1) translateX(0); }
    50% { transform: scale(1.1) translateX(10px); }
}

.comparison-arrow span {
    display: block;
    font-size: 2rem;
    font-weight: 900;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-top: 10px;
}

/* ==========================================
   COURSES SECTION
   ========================================== */
.courses-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
    align-items: stretch;
    justify-items: stretch;
}

.courses-grid-2 {
    grid-template-columns: repeat(2, 1fr);
    max-width: 900px;
}

.course-card {
    background: #ffffff;
    border: 1px solid var(--border-soft);
    border-radius: 25px;
    padding: 40px 30px;
    position: relative;
    transition: all 0.4s ease;
    overflow: hidden;
    transform-style: preserve-3d;
    box-shadow: var(--shadow-sm);
    color: var(--text-dark);
}

.course-glow {
    position: absolute;
    width: 200px;
    height: 200px;
    background: var(--gradient-1);
    border-radius: 50%;
    top: -100px;
    right: -100px;
    filter: blur(60px);
    opacity: 0;
    transition: opacity 0.4s;
}

.course-card:hover .course-glow {
    opacity: 0.3;
}

.course-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-light);
    box-shadow: var(--shadow-lg);
}

.course-number {
    position: absolute;
    top: 25px;
    right: 30px;
    font-family: 'Playfair Display', serif;
    font-size: 4rem;
    font-weight: 900;
    color: rgba(59, 130, 246, 0.08);
    line-height: 1;
}

.course-card.featured {
    background: var(--gradient-1);
    border: none;
    color: #ffffff;
    box-shadow: var(--shadow-glow);
}

.course-card.featured:hover {
    transform: translateY(-10px);
    box-shadow: 0 25px 60px rgba(59, 130, 246, 0.4);
}

.course-card.featured .course-number {
    color: rgba(255, 255, 255, 0.2);
}

.featured-badge {
    position: absolute;
    top: 25px;
    left: 30px;
    background: #ffffff;
    color: var(--primary);
    padding: 8px 16px;
    border-radius: 25px;
    font-size: 0.75rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 6px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.badge-star {
    color: var(--gold);
    animation: starRotate 4s linear infinite;
    display: inline-block;
}

@keyframes starRotate {
    from { transform: rotate(0deg) scale(1); }
    50% { transform: rotate(180deg) scale(1.2); }
    to { transform: rotate(360deg) scale(1); }
}

.course-icon {
    font-size: 4rem;
    margin-bottom: 20px;
    display: inline-block;
    filter: drop-shadow(0 5px 15px rgba(96, 165, 250, 0.4));
    animation: courseIconFloat 3s infinite ease-in-out;
}

@keyframes courseIconFloat {
    0%, 100% { transform: translateY(0) rotate(0); }
    50% { transform: translateY(-10px) rotate(-5deg); }
}

.course-card h3 {
    font-size: 1.7rem;
    margin-bottom: 8px;
    color: var(--text-dark);
}

.course-card.featured h3 {
    color: #ffffff;
}

.course-age {
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 15px;
    font-size: 0.9rem;
}

.course-card.featured .course-age {
    color: rgba(255, 255, 255, 0.95);
}

.course-desc {
    color: var(--text-medium);
    margin-bottom: 25px;
    min-height: 60px;
}

.course-card.featured .course-desc {
    color: rgba(255, 255, 255, 0.9);
}

.course-features {
    list-style: none;
    margin-bottom: 30px;
}

.course-features li {
    padding: 12px 0;
    color: var(--text-medium);
    border-bottom: 1px solid var(--border-soft);
    position: relative;
    padding-left: 28px;
    transition: padding-left 0.3s;
}

.course-features li:hover {
    padding-left: 35px;
}

.course-card.featured .course-features li {
    color: rgba(255, 255, 255, 0.95);
    border-bottom-color: rgba(255, 255, 255, 0.2);
}

.course-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: bold;
    width: 20px;
    height: 20px;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
}

.course-card.featured .course-features li::before {
    color: var(--primary);
    background: #ffffff;
}

.course-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 20px;
    border-top: 1px solid var(--border-soft);
}

.course-card.featured .course-footer {
    border-top-color: rgba(255, 255, 255, 0.2);
}

.course-duration {
    color: var(--text-medium);
    font-size: 0.9rem;
}

.course-card.featured .course-duration {
    color: rgba(255, 255, 255, 0.9);
}

.course-btn {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    transition: gap 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.course-card.featured .course-btn {
    color: #ffffff;
}

.course-btn:hover {
    gap: 10px;
}

/* ==========================================
   TECHNIQUES SECTION
   ========================================== */
.techniques-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
    max-width: 1200px;
    margin: 0 auto;
}

.technique-card {
    background: #ffffff;
    border: 1px solid var(--border-soft);
    border-radius: 20px;
    padding: 35px 30px;
    position: relative;
    transition: all 0.4s ease;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.technique-card::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 4px;
    bottom: 0;
    left: 0;
    background: var(--gradient-1);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s;
}

.technique-card:hover {
    border-color: var(--primary-light);
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.technique-card:hover::before {
    transform: scaleX(1);
}

.tech-num {
    font-family: 'Playfair Display', serif;
    font-size: 3.5rem;
    font-weight: 900;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    opacity: 0.2;
    line-height: 1;
    margin-bottom: 5px;
}

.tech-icon {
    font-size: 3rem;
    margin-bottom: 15px;
    display: inline-block;
    transition: transform 0.4s;
}

.technique-card:hover .tech-icon {
    transform: scale(1.2) rotate(15deg);
}

.technique-card h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--text-dark);
}

.technique-card p {
    color: var(--text-medium);
    font-size: 0.95rem;
}

/* ==========================================
   SPEED TEST SECTION
   ========================================== */
.test-container {
    max-width: 800px;
    margin: 0 auto;
}

.test-card {
    background: #ffffff;
    border: 1px solid var(--border-soft);
    border-radius: 25px;
    padding: 50px;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.test-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-rainbow);
    background-size: 300% 100%;
    animation: rainbowMove 5s linear infinite;
}

.test-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 40px;
    text-align: center;
}

.test-stat {
    padding: 25px 20px;
    background: var(--bg-soft);
    border-radius: 18px;
    border: 1px solid var(--border-light);
    transition: transform 0.3s, border-color 0.3s;
}

.test-stat:hover {
    transform: translateY(-5px);
    border-color: var(--primary-light);
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-family: 'Space Mono', monospace;
}

.stat-text {
    color: var(--text-medium);
    font-size: 0.85rem;
    margin-top: 5px;
}

.test-text {
    background: var(--bg-soft);
    border-radius: 18px;
    padding: 30px;
    margin-bottom: 30px;
    max-height: 300px;
    overflow-y: auto;
    line-height: 1.8;
    color: var(--text-medium);
    transition: all 0.3s;
    border: 1px solid var(--border-soft);
}

.test-text.active {
    color: var(--text-dark);
    border: 2px solid var(--primary-light);
    box-shadow: 0 0 30px rgba(59, 130, 246, 0.15);
    background: #ffffff;
}

.test-controls {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.test-result {
    margin-top: 30px;
    text-align: center;
    font-size: 1.2rem;
    line-height: 1.6;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.5s;
    color: var(--text-medium);
}

.test-result.show {
    opacity: 1;
    transform: translateY(0);
}

.result-speed {
    font-size: 4rem;
    font-weight: 800;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
    margin-bottom: 10px;
    font-family: 'Playfair Display', serif;
}

/* ==========================================
   ADVANTAGES SECTION
   ========================================== */
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
    max-width: 1200px;
    margin: 0 auto;
}

.advantage-card {
    background: #ffffff;
    border: 1px solid var(--border-soft);
    border-radius: 20px;
    padding: 40px 25px;
    text-align: center;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.advantage-card::before {
    content: '';
    position: absolute;
    width: 200px;
    height: 200px;
    background: var(--gradient-1);
    border-radius: 50%;
    top: -100px;
    right: -100px;
    opacity: 0;
    transition: opacity 0.4s, transform 0.4s;
    filter: blur(40px);
}

.advantage-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-light);
    box-shadow: var(--shadow-lg);
}

.advantage-card:hover::before {
    opacity: 0.25;
    transform: scale(1.5);
}

.advantage-icon-wrap {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.12), rgba(56, 189, 248, 0.12));
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.4s;
    border: 1px solid var(--border-light);
}

.advantage-card:hover .advantage-icon-wrap {
    transform: rotate(360deg);
}

.advantage-icon {
    font-size: 2.5rem;
    transition: transform 0.4s;
}

.advantage-card:hover .advantage-icon {
    transform: scale(1.2);
}

.advantage-card h3 {
    font-size: 1.3rem;
    margin-bottom: 12px;
    color: var(--text-dark);
}

.advantage-card p {
    color: var(--text-medium);
    font-size: 0.95rem;
}

/* ==========================================
   INSTAGRAM SECTION
   ========================================== */
.instagram-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin: 0 auto 50px;
    max-width: 1100px;
}

.ig-card {
    aspect-ratio: 1;
    background: var(--gradient-1);
    border-radius: 20px;
    position: relative;
    overflow: hidden;
    text-decoration: none;
    color: white;
    cursor: pointer;
    transition: transform 0.4s, box-shadow 0.4s;
    box-shadow: var(--shadow-md);
}

.ig-card:nth-child(1) { background: linear-gradient(135deg, #3b82f6, #38bdf8); }
.ig-card:nth-child(2) { background: linear-gradient(135deg, #93c5fd, #3b82f6); }
.ig-card:nth-child(3) { background: linear-gradient(135deg, #38bdf8, #f5b964); }
.ig-card:nth-child(4) { background: linear-gradient(135deg, #f5b964, #38bdf8); }
.ig-card:nth-child(5) { background: linear-gradient(135deg, #3b82f6, #93c5fd); }
.ig-card:nth-child(6) { background: linear-gradient(135deg, #38bdf8, #3b82f6); }

.ig-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 20px 50px rgba(56, 189, 248, 0.35);
}

.ig-content {
    padding: 30px 25px;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    position: relative;
    z-index: 1;
}

.ig-emoji {
    font-size: 4rem;
    margin-bottom: 15px;
    filter: drop-shadow(0 5px 15px rgba(0,0,0,0.25));
    transition: transform 0.4s;
}

.ig-card:hover .ig-emoji {
    transform: scale(1.2) rotate(-10deg);
}

.ig-content h4 {
    font-size: 1.2rem;
    margin-bottom: 8px;
    color: #ffffff;
}

.ig-content p {
    font-size: 0.85rem;
    opacity: 0.95;
    color: #ffffff;
}

.ig-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(5px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    opacity: 0;
    transition: opacity 0.3s;
    z-index: 2;
    font-weight: 600;
    color: #ffffff;
}

.ig-card:hover .ig-overlay {
    opacity: 1;
}

.ig-icon {
    font-size: 3rem;
}

.ig-cta {
    text-align: center;
}

/* ==========================================
   TESTIMONIALS SECTION
   ========================================== */
.testimonials-wrapper {
    overflow: hidden;
    width: 100%;
    -webkit-mask-image: linear-gradient(90deg, transparent 0, black 6%, black 94%, transparent 100%);
    mask-image: linear-gradient(90deg, transparent 0, black 6%, black 94%, transparent 100%);
    padding: 30px 0;
}

.testimonials-track {
    display: flex;
    gap: 25px;
    width: max-content;
    animation: testimonialScroll 60s linear infinite;
    padding: 0 12px;
}

.testimonials-track:hover {
    animation-play-state: paused;
}

@keyframes testimonialScroll {
    from { transform: translateX(0); }
    to { transform: translateX(-50%); }
}

.testimonial-card {
    background: #ffffff;
    border: 1px solid var(--border-soft);
    border-radius: 25px;
    padding: 40px 30px;
    position: relative;
    transition: transform 0.4s ease, box-shadow 0.4s ease, border-color 0.4s ease;
    box-shadow: var(--shadow-sm);
    flex-shrink: 0;
    width: 360px;
    display: flex;
    flex-direction: column;
}

.testimonial-card:hover {
    transform: translateY(-8px) scale(1.02);
    border-color: var(--primary-light);
    box-shadow: var(--shadow-glow);
}

.quote-icon {
    position: absolute;
    top: -30px;
    left: 30px;
    font-size: 8rem;
    color: var(--primary-light);
    opacity: 0.25;
    font-family: 'Playfair Display', serif;
    line-height: 1;
}

.testimonial-card .stars {
    font-size: 0.9rem;
    letter-spacing: 2px;
    margin-bottom: 15px;
    position: relative;
    z-index: 1;
}

.testimonial-card p {
    color: var(--text-medium);
    margin-bottom: 25px;
    line-height: 1.7;
    font-style: italic;
    position: relative;
    z-index: 1;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 15px;
}

.author-avatar {
    width: 50px;
    height: 50px;
    background: var(--gradient-1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.3rem;
    color: #ffffff;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

.author-info strong {
    display: block;
    color: var(--text-dark);
}

.author-info small {
    color: var(--text-medium);
    font-size: 0.85rem;
}

/* ==========================================
   CONTACT SECTION
   ========================================== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 50px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.info-card {
    background: #ffffff;
    border: 1px solid var(--border-soft);
    border-radius: 18px;
    padding: 22px;
    display: flex;
    align-items: center;
    gap: 18px;
    transition: all 0.3s;
    box-shadow: var(--shadow-sm);
}

.info-card:hover {
    transform: translateX(10px);
    border-color: var(--primary-light);
    box-shadow: var(--shadow-md);
}

.info-icon {
    width: 55px;
    height: 55px;
    background: var(--gradient-1);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    flex-shrink: 0;
    box-shadow: 0 5px 15px rgba(59, 130, 246, 0.3);
}

.info-card h4 {
    color: var(--text-dark);
    margin-bottom: 3px;
}

.info-card p {
    color: var(--text-medium);
    font-size: 0.95rem;
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 10px;
}

.social-link {
    width: 50px;
    height: 50px;
    background: #ffffff;
    border: 1px solid var(--border-soft);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    text-decoration: none;
    transition: all 0.3s;
    box-shadow: var(--shadow-sm);
}

.social-link:hover {
    background: var(--gradient-1);
    transform: translateY(-5px) rotate(-10deg);
    box-shadow: var(--shadow-glow);
}

.contact-cta {
    background: linear-gradient(135deg, #ffffff 0%, #e6f1fe 100%);
    border: 1px solid var(--border-light);
    border-radius: 30px;
    padding: 50px 40px;
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
    text-align: center;
}

.contact-cta::before {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(37, 211, 102, 0.15), transparent 70%);
    top: -150px;
    right: -150px;
    border-radius: 50%;
    pointer-events: none;
}

.contact-cta::after {
    content: '';
    position: absolute;
    width: 250px;
    height: 250px;
    background: radial-gradient(circle, rgba(96, 165, 250, 0.12), transparent 70%);
    bottom: -125px;
    left: -125px;
    border-radius: 50%;
    pointer-events: none;
}

.contact-cta-inner {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.contact-cta-icon {
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, #25d366, #128c7e);
    border-radius: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
    box-shadow: 0 15px 40px rgba(37, 211, 102, 0.35);
    animation: ctaIconFloat 3s ease-in-out infinite;
    position: relative;
}

.contact-cta-icon::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 30px;
    background: rgba(37, 211, 102, 0.4);
    animation: ctaIconPulse 2s infinite;
    z-index: -1;
}

@keyframes ctaIconFloat {
    0%, 100% { transform: translateY(0) rotate(0); }
    50% { transform: translateY(-10px) rotate(5deg); }
}

@keyframes ctaIconPulse {
    0% { transform: scale(1); opacity: 0.6; }
    100% { transform: scale(1.4); opacity: 0; }
}

.contact-cta h3 {
    font-family: 'Playfair Display', serif;
    font-size: 2rem;
    font-weight: 900;
    margin-bottom: 15px;
    color: var(--text-dark);
    line-height: 1.2;
}

.contact-cta p {
    color: var(--text-medium);
    font-size: 1.05rem;
    margin-bottom: 30px;
    max-width: 450px;
    line-height: 1.6;
}

.contact-cta-list {
    list-style: none;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 35px;
    width: 100%;
    max-width: 400px;
}

.contact-cta-list li {
    background: rgba(96, 165, 250, 0.06);
    padding: 12px 16px;
    border-radius: 12px;
    font-size: 0.9rem;
    color: var(--text-dark);
    font-weight: 500;
    border: 1px solid var(--border-light);
    text-align: left;
}

.btn-whatsapp {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: linear-gradient(135deg, #25d366, #128c7e);
    color: white;
    padding: 18px 40px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.1rem;
    box-shadow: 0 10px 30px rgba(37, 211, 102, 0.4);
    transition: all 0.3s;
    margin-bottom: 15px;
    position: relative;
    overflow: hidden;
    isolation: isolate;
}

.btn-whatsapp::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #128c7e, #25d366);
    opacity: 0;
    transition: opacity 0.3s;
    z-index: -1;
}

.btn-whatsapp::after {
    content: '';
    position: absolute;
    top: 50%;
    left: -100%;
    width: 100%;
    height: 200%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transform: translateY(-50%) rotate(20deg);
    transition: left 0.6s;
}

.btn-whatsapp:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 15px 40px rgba(37, 211, 102, 0.55);
}

.btn-whatsapp:hover::before {
    opacity: 1;
}

.btn-whatsapp:hover::after {
    left: 100%;
}

.contact-cta-note {
    color: var(--text-light);
    font-size: 0.85rem;
}

.form-group {
    position: relative;
    margin-bottom: 30px;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 15px 0;
    background: transparent;
    border: none;
    border-bottom: 2px solid var(--border-light);
    color: var(--text-dark);
    font-family: inherit;
    font-size: 1rem;
    outline: none;
    transition: border-color 0.3s;
}

.form-group select {
    cursor: pointer;
    color: var(--text-medium);
}

.form-group select option {
    background: #ffffff;
    color: var(--text-dark);
}

.form-group label {
    position: absolute;
    top: 15px;
    left: 0;
    color: var(--text-medium);
    pointer-events: none;
    transition: all 0.3s;
}

.form-group input:focus ~ label,
.form-group input:valid ~ label,
.form-group textarea:focus ~ label,
.form-group textarea:valid ~ label {
    top: -10px;
    font-size: 0.85rem;
    color: var(--primary);
}

.form-line {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-1);
    transition: width 0.3s;
}

.form-group input:focus ~ .form-line,
.form-group textarea:focus ~ .form-line,
.form-group select:focus ~ .form-line {
    width: 100%;
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

/* ==========================================
   FOOTER
   ========================================== */
.footer {
    background: linear-gradient(180deg, #ffffff 0%, #e6f1fe 100%);
    padding: 70px 0 30px;
    position: relative;
    z-index: 1;
    border-top: 1px solid var(--border-light);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 50px;
}

.footer-brand p {
    color: var(--text-medium);
    margin-top: 20px;
    max-width: 300px;
}

.footer-links h4 {
    color: var(--text-dark);
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
    color: var(--text-medium);
    font-size: 0.95rem;
}

.footer-links a {
    color: var(--text-medium);
    text-decoration: none;
    transition: color 0.3s, padding-left 0.3s;
}

.footer-links a:hover {
    color: var(--primary);
    padding-left: 5px;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid var(--border-soft);
    color: var(--text-medium);
    font-size: 0.9rem;
}

/* ==========================================
   SEO CONTENT - Görsel olarak küçük ama erişilebilir
   ========================================== */
.seo-content {
    color: var(--text-medium);
    font-size: 0.85rem;
    line-height: 1.7;
    padding: 30px 0;
    margin-bottom: 30px;
    border-top: 1px solid var(--border-soft);
    border-bottom: 1px solid var(--border-soft);
}

.seo-content h2 {
    font-size: 1.1rem;
    color: var(--text-dark);
    margin-bottom: 12px;
    font-weight: 700;
}

.seo-content h3 {
    font-size: 0.95rem;
    color: var(--text-dark);
    margin-top: 18px;
    margin-bottom: 8px;
    font-weight: 600;
}

.seo-content p {
    margin-bottom: 10px;
}

.seo-content a {
    color: var(--primary);
    text-decoration: none;
}

.seo-content a:hover {
    text-decoration: underline;
}

.seo-content strong {
    color: var(--text-dark);
    font-weight: 600;
}

/* ==========================================
   BACK TO TOP
   ========================================== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 55px;
    height: 55px;
    background: var(--gradient-1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    text-decoration: none;
    box-shadow: var(--shadow-glow);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
    z-index: 999;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(56, 189, 248, 0.4);
}

/* ==========================================
   NOTIFICATION
   ========================================== */
.notification {
    position: fixed;
    top: 100px;
    right: 30px;
    background: linear-gradient(135deg, #10b981, #059669);
    color: white;
    padding: 20px 30px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(16, 185, 129, 0.4);
    z-index: 10000;
    font-weight: 600;
    max-width: 350px;
    transform: translateX(120%);
    transition: transform 0.4s ease;
}

.notification.show {
    transform: translateX(0);
}

/* ==========================================
   RESPONSIVE - TABLET (≤968px)
   ========================================== */
@media (max-width: 968px) {
    .hero-container,
    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 50px;
        text-align: center;
    }

    .hero-content {
        max-width: 600px;
        margin: 0 auto;
        align-items: center;
    }

    .hero-visual {
        height: 400px;
        order: -1;
    }

    .hero-3d-scene {
        transform: scale(0.75);
    }

    .footer-content {
        grid-template-columns: 1fr 1fr;
    }

    .comparison-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        max-width: 600px;
        margin: 0 auto;
    }

    .comparison-arrow {
        padding: 12px 0;
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 14px;
    }

    .comparison-arrow .arrow-icon {
        transform: rotate(90deg);
        font-size: 2.5rem;
    }

    .comparison-arrow span {
        margin-top: 0;
        font-size: 1.6rem;
        display: inline-block;
    }

    .courses-grid,
    .courses-grid-2,
    .techniques-grid,
    .advantages-grid,
    .instagram-grid {
        grid-template-columns: repeat(2, 1fr);
        max-width: 700px;
        margin: 0 auto;
    }

    .course-card.featured {
        transform: none;
    }

    .course-card.featured:hover {
        transform: translateY(-10px);
    }

    .about-content {
        text-align: center;
        display: flex;
        flex-direction: column;
        align-items: center;
        width: 100%;
    }

    .about-content h3 {
        font-size: 1.8rem;
        max-width: 100%;
        word-break: break-word;
        text-align: center;
    }

    .about-content p {
        max-width: 600px;
    }

    .about-content .btn {
        margin: 0 auto;
    }

    .about-features {
        max-width: 500px;
        width: 100%;
        margin-left: auto;
        margin-right: auto;
    }

    .feature-item {
        justify-content: center;
    }

    .scroll-indicator {
        display: none;
    }

    /* Image frame ortala ve daha küçük */
    .image-frame {
        max-width: 340px;
        margin: 0 auto;
    }
}

/* ==========================================
   RESPONSIVE - MOBILE (≤768px)
   ========================================== */
@media (max-width: 768px) {
    /* Navbar */
    .hamburger {
        display: flex;
    }

    .navbar {
        padding: 14px 0;
    }

    .navbar.scrolled {
        padding: 10px 0;
    }

    .nav-container {
        padding: 0 18px;
    }

    .logo {
        font-size: 1.2rem;
        gap: 8px;
    }

    .logo-icon-wrap {
        width: 36px;
        height: 36px;
    }

    .logo-prefix {
        font-size: 0.5rem;
        letter-spacing: 2px;
    }

    .logo-main {
        font-size: 1.15rem;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 85%;
        max-width: 350px;
        height: 100vh;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        gap: 28px;
        transition: right 0.4s ease;
        box-shadow: -10px 0 30px rgba(59, 130, 246, 0.15);
        padding: 40px 30px;
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-link {
        font-size: 1.15rem;
    }

    /* Container */
    .container {
        padding: 0 22px;
        width: 100%;
        max-width: 100%;
        margin: 0 auto;
        box-sizing: border-box;
    }

    .nav-container {
        width: 100%;
        max-width: 100%;
        padding: 0 22px;
        box-sizing: border-box;
    }

    section {
        padding: 60px 0;
        width: 100%;
        max-width: 100vw;
        overflow-x: hidden;
    }

    .hero-container {
        width: 100%;
        max-width: 100%;
        padding: 0 22px;
        box-sizing: border-box;
        margin: 0 auto;
    }

    .hero {
        padding: 100px 0 40px;
    }

    /* Hero */
    .hero {
        padding: 100px 18px 40px;
        min-height: auto;
    }

    .hero-container {
        gap: 30px;
    }

    .hero-title {
        font-size: 2.5rem;
        line-height: 1.1;
    }

    .hero-badge {
        font-size: 0.75rem;
        padding: 8px 16px;
    }

    .hero-description {
        font-size: 1rem;
        margin-bottom: 25px;
    }

    .hero-buttons {
        flex-direction: column;
        width: 100%;
        gap: 12px;
        margin-bottom: 40px;
    }

    .btn {
        justify-content: center;
        width: 100%;
        padding: 14px 24px;
        font-size: 0.95rem;
    }

    .hero-stats {
        gap: 16px;
        width: 100%;
        justify-content: space-around;
        flex-wrap: nowrap;
    }

    .stat-divider {
        height: 40px;
    }

    .stat-number {
        font-size: 1.8rem;
    }

    .stat-label {
        font-size: 0.7rem;
    }

    .hero-visual {
        height: 320px;
        overflow: hidden;
        max-width: 100%;
    }

    .hero-3d-scene {
        transform: scale(0.55);
        max-width: 100%;
    }

    .floating-element {
        font-size: 1.8rem;
    }

    .orbit {
        max-width: 100vw;
    }

    .orbit-1 { width: min(480px, 95vw); height: min(480px, 95vw); }
    .orbit-2 { width: min(580px, 100vw); height: min(380px, 95vw); }
    .orbit-3 { width: min(380px, 90vw); height: min(580px, 100vw); }

    /* Section headers */
    .section-header {
        margin-bottom: 60px;
        padding: 20px 10px 30px;
        overflow: visible;
    }

    .section-title {
        font-size: 1.85rem;
        line-height: 1.35;
        padding-bottom: 12px;
    }

    .section-title .gradient-text {
        line-height: 1.35;
        padding-bottom: 4px;
    }

    .section-tag {
        font-size: 0.75rem;
        letter-spacing: 2px;
        padding: 6px 16px;
    }

    .section-subtitle {
        font-size: 0.95rem;
    }

    /* Hero content tam ortalı */
    .hero-content {
        width: 100%;
        max-width: 540px;
        margin-left: auto;
        margin-right: auto;
        justify-self: center;
        align-self: center;
        align-items: center;
        text-align: center;
        display: flex;
        flex-direction: column;
        padding: 0;
        box-sizing: border-box;
    }

    .hero-badge {
        max-width: 100%;
        white-space: normal;
        line-height: 1.4;
        text-align: center;
        font-size: 0.78rem;
        align-self: center;
    }

    .hero-content .hero-title {
        width: 100%;
        text-align: center;
        align-self: center;
    }

    .hero-content .hero-description {
        width: 100%;
        max-width: 100%;
        text-align: center;
        margin-left: auto;
        margin-right: auto;
        align-self: center;
    }

    .hero-content .hero-buttons {
        width: 100%;
        max-width: 100%;
        flex-direction: column;
        align-items: stretch;
        justify-content: center;
        align-self: center;
        margin-left: auto;
        margin-right: auto;
    }

    .hero-content .btn {
        width: 100%;
        max-width: 100%;
        margin-left: auto;
        margin-right: auto;
    }

    .hero-content .hero-stats {
        width: 100%;
        max-width: 100%;
        justify-content: space-evenly;
        align-items: center;
        align-self: center;
        margin-left: auto;
        margin-right: auto;
    }

    /* Container mobil tam genişlik */
    .container,
    .nav-container,
    .hero-container {
        width: 100%;
        max-width: 100%;
    }

    body,
    html {
        width: 100%;
        overflow-x: hidden;
    }

    /* Marquee */
    .marquee {
        padding: 18px 0;
        margin: 35px 0;
        transform: rotate(0deg);
    }

    .marquee-content {
        gap: 30px;
    }

    .marquee-content span {
        font-size: 1rem;
        letter-spacing: 1px;
    }

    /* Social links wrap */
    .social-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: 12px;
    }

    /* Contact info kartları tam genişlikte */
    .contact-info,
    .contact-cta,
    .test-card,
    .info-card,
    .course-card,
    .technique-card,
    .advantage-card {
        width: 100%;
        max-width: 100%;
    }

    /* Contact bölümünde dikey gap */
    .contact-grid {
        gap: 40px;
    }

    .contact-info {
        gap: 14px;
    }

    /* WhatsApp kartının üst halo'su yukarıya taşmasın */
    .contact-cta {
        overflow: hidden;
        isolation: isolate;
        margin-top: 30px;
        position: relative;
        z-index: 2;
    }

    .contact-cta::before,
    .contact-cta::after {
        display: none;
    }

    .social-links {
        margin-top: 20px;
        margin-bottom: 20px;
        padding: 10px 0;
        position: relative;
        z-index: 1;
    }

    .contact-info {
        position: relative;
        z-index: 1;
    }

    /* About */
    .about-content h3 {
        font-size: 1.8rem;
        text-align: center;
    }

    .about-content {
        text-align: center;
    }

    .about-content .btn {
        margin: 0 auto;
    }

    .about-lead {
        font-size: 1.05rem;
    }

    .about-features {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .feature-item {
        justify-content: center;
    }

    .image-frame {
        max-width: 320px;
        margin: 0 auto;
    }

    .big-emoji {
        font-size: 7rem;
    }

    .floating-card {
        padding: 10px 16px;
        font-size: 0.85rem;
    }

    .floating-card span {
        font-size: 1.5rem;
    }

    .floating-card strong {
        font-size: 0.95rem;
    }

    .floating-card small {
        font-size: 0.7rem;
    }

    .card-1 { top: 15px; right: -15px; }
    .card-2 { bottom: 60px; left: -20px; }
    .card-3 { bottom: 15px; right: -10px; }

    /* Comparison */
    .comparison-card {
        padding: 30px 22px;
    }

    .speed-number {
        font-size: 3.5rem;
    }

    .comp-icon {
        font-size: 2.5rem;
    }

    /* Cards - all grids 1 column */
    .courses-grid,
    .techniques-grid,
    .advantages-grid,
    .instagram-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .course-card {
        padding: 35px 25px;
    }

    .course-card h3 {
        font-size: 1.5rem;
    }

    .course-card.featured {
        transform: none;
    }

    .course-icon {
        font-size: 3rem;
    }

    .featured-badge {
        font-size: 0.7rem;
        padding: 6px 12px;
        top: 20px;
        left: 25px;
    }

    .course-number {
        font-size: 3rem;
        top: 20px;
        right: 25px;
    }

    /* Techniques */
    .technique-card {
        padding: 28px 22px;
        text-align: center;
    }

    .technique-card .tech-num,
    .technique-card .tech-icon {
        display: block;
        margin-left: auto;
        margin-right: auto;
    }

    .tech-num {
        font-size: 2.8rem;
    }

    /* Advantages */
    .advantage-card {
        padding: 30px 22px;
    }

    .advantage-icon-wrap {
        width: 70px;
        height: 70px;
    }

    /* Instagram */
    .instagram-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    .ig-content {
        padding: 20px 15px;
    }

    .ig-emoji {
        font-size: 2.8rem;
        margin-bottom: 10px;
    }

    .ig-content h4 {
        font-size: 1rem;
    }

    .ig-content p {
        font-size: 0.75rem;
    }

    /* Speed Test */
    .test-card {
        padding: 30px 18px;
    }

    .test-stats {
        grid-template-columns: repeat(3, 1fr);
        gap: 10px;
    }

    .test-stat {
        padding: 14px 8px;
    }

    .test-stat .stat-value {
        font-size: 1.5rem;
    }

    .test-stat .stat-text {
        font-size: 0.7rem;
    }

    .test-text {
        padding: 22px;
        max-height: 250px;
        font-size: 0.95rem;
    }

    .test-controls {
        flex-direction: column;
    }

    .result-speed {
        font-size: 3rem;
    }

    /* Testimonials */
    .testimonial-card {
        padding: 35px 25px;
        width: 300px;
    }

    .testimonials-track {
        gap: 18px;
        animation-duration: 50s;
    }

    .quote-icon {
        font-size: 6rem;
        top: -20px;
    }

    /* Contact */
    .contact-cta {
        padding: 35px 22px;
    }

    .contact-cta h3 {
        font-size: 1.6rem;
    }

    .contact-cta p {
        font-size: 0.95rem;
    }

    .contact-cta-icon {
        width: 80px;
        height: 80px;
    }

    .contact-cta-icon svg {
        width: 60px;
        height: 60px;
    }

    .contact-cta-list {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .btn-whatsapp {
        padding: 16px 28px;
        font-size: 1rem;
        width: 100%;
        justify-content: center;
    }

    .info-card {
        padding: 18px;
        gap: 14px;
    }

    .info-card:hover {
        transform: translateY(-3px);
    }

    .info-icon {
        width: 48px;
        height: 48px;
        font-size: 1.4rem;
    }

    .info-card h4 {
        font-size: 0.95rem;
    }

    .info-card p {
        font-size: 0.85rem;
    }

    /* Footer */
    .footer {
        padding: 50px 0 25px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 30px;
    }

    .footer-brand {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .footer-brand p {
        margin: 15px auto 0;
    }

    /* Floating elements */
    .whatsapp-float {
        width: 50px;
        height: 50px;
        bottom: 18px;
        left: 18px;
    }

    .whatsapp-float svg {
        width: 26px;
        height: 26px;
    }

    .whatsapp-tooltip {
        display: none;
    }

    .back-to-top {
        width: 45px;
        height: 45px;
        bottom: 18px;
        right: 18px;
    }

    .notification {
        right: 15px;
        left: 15px;
        max-width: none;
        padding: 16px 20px;
        font-size: 0.9rem;
    }
}

/* ==========================================
   RESPONSIVE - SMALL MOBILE (≤480px)
   ========================================== */
/* ==========================================
   RESPONSIVE - MOBILE LARGE (≤480px)
   ========================================== */
@media (max-width: 480px) {
    .container,
    .nav-container {
        padding: 0 18px;
        margin: 0 auto;
        box-sizing: border-box;
    }

    /* Hero */
    .hero {
        padding: 85px 0 30px;
        min-height: auto;
    }

    .hero-container {
        padding: 0 18px;
        margin: 0 auto;
        box-sizing: border-box;
    }

    .hero-container {
        gap: 25px;
    }

    .hero-title {
        font-size: 2rem;
        line-height: 1.1;
    }

    .hero-badge {
        font-size: 0.68rem;
        padding: 6px 12px;
        gap: 6px;
    }

    .hero-description {
        font-size: 0.95rem;
        margin-bottom: 22px;
    }

    .hero-visual {
        height: 260px;
    }

    .hero-3d-scene {
        transform: scale(0.42);
    }

    .floating-element {
        font-size: 1.4rem;
    }

    .hero-buttons {
        gap: 10px;
        margin-bottom: 35px;
    }

    .btn {
        padding: 13px 22px;
        font-size: 0.9rem;
    }

    .hero-stats {
        gap: 8px;
    }

    .stat-number {
        font-size: 1.5rem;
    }

    .stat-label {
        font-size: 0.62rem;
    }

    .stat-divider {
        height: 30px;
    }

    /* Logo */
    .logo-main {
        font-size: 1rem;
    }

    .logo-prefix {
        font-size: 0.42rem;
        letter-spacing: 1.5px;
    }

    .logo-icon-wrap {
        width: 32px;
        height: 32px;
    }

    .navbar {
        padding: 12px 0;
    }

    .navbar.scrolled {
        padding: 8px 0;
    }

    /* Sections */
    section {
        padding: 50px 0;
    }

    .section-title {
        font-size: 1.7rem;
    }

    .section-tag {
        font-size: 0.7rem;
        padding: 5px 14px;
        letter-spacing: 1.5px;
    }

    .section-subtitle {
        font-size: 0.88rem;
    }

    .section-header {
        margin-bottom: 35px;
    }

    .floating-card {
        display: none;
    }

    /* About */
    .about-content h3 {
        font-size: 1.55rem;
    }

    .about-lead {
        font-size: 1rem;
    }

    .about-content p {
        font-size: 0.95rem;
    }

    .image-frame {
        max-width: 280px;
    }

    .big-emoji {
        font-size: 6rem;
    }

    /* Marquee */
    .marquee {
        padding: 12px 0;
        margin: 22px 0;
        transform: rotate(0deg);
    }

    .marquee-content {
        gap: 22px;
    }

    .marquee-content span {
        font-size: 0.8rem;
        letter-spacing: 0.5px;
    }

    /* Comparison */
    .comparison-card {
        padding: 25px 18px;
        border-radius: 22px;
    }

    .speed-number {
        font-size: 2.8rem;
    }

    .comp-icon {
        font-size: 2.2rem;
    }

    .comp-label {
        font-size: 0.7rem;
        letter-spacing: 2px;
    }

    .comparison-header {
        margin-bottom: 18px;
    }

    .arrow-icon {
        font-size: 3rem;
    }

    .comparison-arrow span {
        font-size: 1.5rem;
    }

    /* Course cards */
    .course-card {
        padding: 30px 22px;
    }

    .course-card h3 {
        font-size: 1.3rem;
    }

    .course-desc {
        font-size: 0.9rem;
        min-height: auto;
    }

    .course-features li {
        font-size: 0.9rem;
        padding: 10px 0 10px 26px;
    }

    .featured-badge {
        font-size: 0.65rem;
        padding: 5px 11px;
    }

    .course-number {
        font-size: 2.3rem;
        top: 15px;
        right: 22px;
    }

    .course-icon {
        font-size: 2.6rem;
    }

    /* Techniques */
    .technique-card {
        padding: 26px 20px;
        text-align: center;
    }

    .technique-card .tech-num,
    .technique-card .tech-icon {
        display: block;
        margin-left: auto;
        margin-right: auto;
    }

    .technique-card h3 {
        font-size: 1.15rem;
    }

    .technique-card p {
        font-size: 0.88rem;
    }

    .tech-num {
        font-size: 2.4rem;
    }

    /* Advantages */
    .advantage-card {
        padding: 28px 20px;
    }

    .advantage-card h3 {
        font-size: 1.15rem;
    }

    .advantage-card p {
        font-size: 0.88rem;
    }

    .advantage-icon-wrap {
        width: 64px;
        height: 64px;
    }

    /* Test */
    .test-card {
        padding: 24px 14px;
        border-radius: 22px;
    }

    .test-stats {
        gap: 8px;
        margin-bottom: 25px;
    }

    .test-stat {
        padding: 12px 8px;
        border-radius: 14px;
    }

    .test-stat .stat-value {
        font-size: 1.3rem;
    }

    .test-stat .stat-text {
        font-size: 0.65rem;
    }

    .test-text {
        padding: 18px 16px;
        font-size: 0.88rem;
        line-height: 1.65;
        max-height: 220px;
    }

    .test-result {
        font-size: 1rem;
    }

    .result-speed {
        font-size: 2.5rem;
    }

    /* Instagram */
    .instagram-grid {
        grid-template-columns: 1fr;
        gap: 14px;
    }

    .ig-card {
        aspect-ratio: 16/9;
    }

    .ig-emoji {
        font-size: 2.5rem;
    }

    /* Testimonials */
    .testimonial-card {
        width: 280px;
        padding: 30px 22px;
    }

    .testimonials-track {
        gap: 16px;
        animation-duration: 45s;
    }

    .testimonial-card p {
        font-size: 0.9rem;
    }

    .quote-icon {
        font-size: 5rem;
        top: -18px;
        left: 22px;
    }

    /* Contact */
    .contact-cta {
        padding: 30px 18px;
        border-radius: 24px;
    }

    .contact-cta h3 {
        font-size: 1.35rem;
    }

    .contact-cta p {
        font-size: 0.9rem;
    }

    .contact-cta-icon {
        width: 70px;
        height: 70px;
        border-radius: 22px;
    }

    .contact-cta-icon svg {
        width: 50px;
        height: 50px;
    }

    .contact-cta-list li {
        font-size: 0.85rem;
        padding: 10px 14px;
    }

    .info-card {
        padding: 14px;
        border-radius: 14px;
    }

    .info-icon {
        width: 42px;
        height: 42px;
        font-size: 1.25rem;
        border-radius: 11px;
    }

    .info-card h4 {
        font-size: 0.92rem;
    }

    .info-card p {
        font-size: 0.82rem;
    }

    /* Footer */
    .footer {
        padding: 45px 0 20px;
    }

    .footer-content {
        gap: 24px;
    }

    .footer-bottom {
        font-size: 0.8rem;
    }

    /* Notification */
    .notification {
        top: 75px;
        right: 12px;
        left: 12px;
        padding: 14px 18px;
        font-size: 0.85rem;
    }

    /* WhatsApp & Back to top */
    .whatsapp-float {
        width: 48px;
        height: 48px;
        bottom: 16px;
        left: 16px;
    }

    .whatsapp-float svg {
        width: 24px;
        height: 24px;
    }

    .back-to-top {
        width: 42px;
        height: 42px;
        bottom: 16px;
        right: 16px;
    }

    .back-to-top svg {
        width: 18px;
        height: 18px;
    }

    /* Loader mobile */
    .loader-text {
        font-size: 1.8rem;
        letter-spacing: 5px;
    }

    .loader-book {
        width: 100px;
        height: 70px;
    }

    .loader-page {
        width: 50px;
        height: 70px;
        left: 50px;
    }

    .loader-bar {
        width: 200px;
    }

    /* Disable cursor trail on mobile */
    #cursorTrail {
        display: none;
    }
}

/* ==========================================
   RESPONSIVE - MOBILE EXTRA SMALL (≤380px)
   ========================================== */
@media (max-width: 380px) {
    .hero-title {
        font-size: 1.75rem;
    }

    .hero-description {
        font-size: 0.88rem;
    }

    .hero-visual {
        height: 230px;
    }

    .hero-3d-scene {
        transform: scale(0.36);
    }

    .hero-stats {
        gap: 6px;
    }

    .stat-number {
        font-size: 1.3rem;
    }

    .stat-label {
        font-size: 0.58rem;
    }

    .stat-divider {
        height: 26px;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .about-content h3 {
        font-size: 1.4rem;
    }

    .marquee-content span {
        font-size: 0.72rem;
    }

    .speed-number {
        font-size: 2.5rem;
    }

    .testimonial-card {
        width: 260px;
        padding: 26px 20px;
    }

    .test-text {
        max-height: 180px;
        font-size: 0.82rem;
    }

    .logo-main {
        font-size: 0.92rem;
    }

    .logo-prefix {
        font-size: 0.4rem;
    }

    .logo-icon-wrap {
        width: 28px;
        height: 28px;
    }

    .nav-container {
        padding: 0 14px;
    }

    .container {
        padding: 0 14px;
    }
}

/* ==========================================
   LANDSCAPE MOBILE (height < 500px)
   ========================================== */
@media (max-height: 500px) and (orientation: landscape) {
    .hero {
        padding: 80px 20px 30px;
    }

    .hero-visual {
        height: 280px;
    }

    .scroll-indicator {
        display: none;
    }
}

/* ==========================================
   TOUCH DEVICE - disable hover effects
   ========================================== */
@media (hover: none) {
    .info-card:hover,
    .course-card:hover,
    .technique-card:hover,
    .advantage-card:hover,
    .testimonial-card:hover,
    .ig-card:hover,
    .btn:hover {
        transform: none;
    }
}