:root {
    --primary: #6366f1;
    --primary-light: #818cf8;
    --primary-lighter: #a5b4fc;
    --primary-dark: #4f46e5;
    --secondary: #06b6d4;
    --secondary-light: #22d3ee;
    --secondary-lighter: #67e8f9;
    --accent: #f59e0b;
    --accent-light: #fbbf24;
    --rose: #f43f5e;
    --emerald: #10b981;
    --bg: #f8fafc;
    --bg-alt: #f1f5f9;
    --surface: #ffffff;
    --surface-hover: #f1f5f9;
    --border: #e2e8f0;
    --border-light: #f1f5f9;
    --text: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --text-light: #cbd5e1;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
    --shadow: 0 4px 24px rgba(0,0,0,0.06);
    --shadow-lg: 0 12px 48px rgba(0,0,0,0.08);
    --shadow-xl: 0 24px 64px rgba(0,0,0,0.12);
    --shadow-glow: 0 4px 24px rgba(99,102,241,0.25);
    --shadow-glow-lg: 0 12px 48px rgba(99,102,241,0.2);
    --radius-sm: 8px;
    --radius: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
    --transition-slow: 0.5s cubic-bezier(0.4,0,0.2,1);
    --font: 'Inter', sans-serif;
    --font-alt: 'Vazirmatn', sans-serif;
}

* { margin:0; padding:0; box-sizing:border-box; }

html { scroll-behavior:smooth; }

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

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

a { text-decoration:none; color:inherit; }
ul { list-style:none; }
img { max-width:100%; height:auto; }

.container { max-width:1200px; margin:0 auto; padding:0 24px; }

/* ===== Animated Background Orbs ===== */
.animated-bg {
    position:fixed; top:0; left:0; width:100%; height:100%; z-index:-1; overflow:hidden;
}
.animated-bg .orb {
    position:absolute; border-radius:50%; filter:blur(120px); opacity:0.06;
    animation:orbFloat 30s ease-in-out infinite;
}
.orb:nth-child(1) { width:600px; height:600px; background:var(--primary); top:-15%; left:-10%; animation-delay:0s; }
.orb:nth-child(2) { width:500px; height:500px; background:var(--secondary); bottom:-15%; right:-10%; animation-delay:-10s; }
.orb:nth-child(3) { width:400px; height:400px; background:var(--accent); top:40%; left:50%; transform:translate(-50%,-50%); animation-delay:-20s; }
@keyframes orbFloat {
    0%,100% { transform:translate(0,0) scale(1); }
    25% { transform:translate(120px,-120px) scale(1.15); }
    50% { transform:translate(-60px,120px) scale(0.85); }
    75% { transform:translate(100px,60px) scale(1.05); }
}

/* ===== Glass Utility ===== */
.glass {
    background:rgba(255,255,255,0.7);
    backdrop-filter:blur(20px) saturate(1.5);
    -webkit-backdrop-filter:blur(20px) saturate(1.5);
    border:1px solid rgba(255,255,255,0.3);
    box-shadow:0 8px 32px rgba(0,0,0,0.06);
}

/* ===== Scroll Progress Bar ===== */
#scrollProgress {
    position:fixed; top:0; left:0; height:3px;
    background:linear-gradient(90deg,var(--primary),var(--secondary),var(--accent));
    z-index:1001; width:0%;
    transition:width 0.1s linear;
}

/* ===== Header / Navbar ===== */
header {
    position:fixed; top:0; left:0; width:100%; z-index:1000;
    padding:14px 0; transition:var(--transition);
}
header.scrolled {
    background:rgba(255,255,255,0.72);
    backdrop-filter:blur(24px) saturate(1.8);
    -webkit-backdrop-filter:blur(24px) saturate(1.8);
    box-shadow:0 1px 0 var(--border);
    padding:8px 0;
}
header:not(.scrolled) .logo,
header:not(.scrolled) .nav-links a { color:rgba(255,255,255,.9); }
header:not(.scrolled) .nav-links a:hover { color:#fff; background:rgba(255,255,255,.12); }
header:not(.scrolled) .nav-links .lang-switch a { border-color:rgba(255,255,255,.35); color:rgba(255,255,255,.8); }
header:not(.scrolled) .logo span { color:rgba(255,255,255,.9); }

header.header-dark {
    background:linear-gradient(180deg,#0f172a,#1e293b);
    box-shadow:0 1px 0 rgba(255,255,255,.06);
}
header.header-dark.scrolled {
    background:linear-gradient(180deg,#0f172a 60%,#1e293b);
    box-shadow:0 1px 0 rgba(255,255,255,.1);
    padding:8px 0;
}
header.header-dark .logo,
header.header-dark .nav-links a { color:rgba(255,255,255,.9); }
header.header-dark .nav-links a:hover { color:#fff; background:rgba(255,255,255,.12); }
header.header-dark .nav-links .lang-switch a { border-color:rgba(255,255,255,.35); color:rgba(255,255,255,.8); }
header.header-dark .hamburger span { background:rgba(255,255,255,.9); }

.navbar {
    display:flex; align-items:center; justify-content:space-between;
    max-width:1200px; margin:0 auto; padding:0 24px;
}

.logo {
    display:flex; align-items:center; gap:10px;
    font-size:1.35rem; font-weight:800; letter-spacing:-0.5px;
}
.logo-icon {
    width:38px; height:38px;
    background:linear-gradient(135deg,var(--primary),var(--primary-light));
    border-radius:10px; display:flex; align-items:center; justify-content:center;
    font-size:1.1rem; color:#fff;
    box-shadow:0 4px 12px rgba(99,102,241,0.3);
    transition:transform .4s;
}
.logo:hover .logo-icon { transform:rotate(-10deg) scale(1.1); }
.logo span { color:var(--primary); }

.nav-links {
    display:flex; align-items:center; gap:8px;
}
.nav-links a {
    font-size:0.85rem; font-weight:500; color:var(--text-secondary);
    padding:8px 14px; border-radius:var(--radius-sm);
    transition:var(--transition); position:relative;
}
.nav-links a:hover { color:var(--primary); background:rgba(99,102,241,0.08); }
.nav-links a.active { color:var(--primary); font-weight:600; }
.nav-links a::after {
    content:''; position:absolute; bottom:2px; left:50%; transform:translateX(-50%) scaleX(0);
    width:20px; height:2px; background:var(--primary); border-radius:2px;
    transition:transform .3s;
}
.nav-links a.active::after,
.nav-links a:hover::after { transform:translateX(-50%) scaleX(1); }

.nav-links .btn { padding:8px 18px; }
.nav-links .lang-switch a {
    font-size:0.75rem; font-weight:700; letter-spacing:0.5px;
    padding:4px 10px; border-radius:6px;
    border:1px solid var(--border); color:var(--text-muted);
}
.nav-links .lang-switch a:hover {
    border-color:var(--primary); color:var(--primary); background:transparent;
}
.nav-links .lang-switch a::after { display:none; }

/* ===== Hamburger ===== */
.hamburger {
    display:none; flex-direction:column; gap:5px; cursor:pointer; padding:5px; z-index:1001;
}
.hamburger span {
    width:24px; height:2px; background:var(--text); border-radius:2px;
    transition:var(--transition);
}
.hamburger.active span:nth-child(1) { transform:rotate(45deg) translate(5px,5px); }
.hamburger.active span:nth-child(2) { opacity:0; }
.hamburger.active span:nth-child(3) { transform:rotate(-45deg) translate(5px,-5px); }
header:not(.scrolled) .hamburger span { background:rgba(255,255,255,.9); }

/* ===== Buttons ===== */
.btn {
    display:inline-flex; align-items:center; gap:8px;
    padding:10px 24px; border-radius:50px;
    font-size:0.9rem; font-weight:600; cursor:pointer;
    transition:var(--transition); border:none; font-family:inherit;
    line-height:1; white-space:nowrap; position:relative; overflow:hidden;
}
.btn-primary {
    background:linear-gradient(135deg,var(--primary),var(--primary-light));
    color:#fff; box-shadow:0 4px 16px rgba(99,102,241,0.3);
}
.btn-primary:hover {
    transform:translateY(-2px);
    box-shadow:0 8px 28px rgba(99,102,241,0.45);
}
.btn-primary:active { transform:translateY(0) scale(0.97); }
.btn-secondary {
    background:var(--surface); color:var(--text);
    border:1px solid var(--border); box-shadow:var(--shadow-sm);
}
.btn-secondary:hover {
    border-color:var(--primary); color:var(--primary);
    box-shadow:var(--shadow);
}
.btn-sm { padding:8px 18px; font-size:0.85rem; }
.btn-lg { padding:14px 34px; font-size:1rem; }

/* Button Ripple */
.btn .ripple {
    position:absolute; border-radius:50%;
    background:rgba(255,255,255,0.4);
    transform:scale(0); animation:rippleAnim 0.6s ease-out;
    pointer-events:none;
}
@keyframes rippleAnim { to { transform:scale(4); opacity:0; } }

/* ===== Hero Section ===== */
.hero {
    min-height:100vh; display:flex; align-items:center;
    position:relative; overflow:hidden; padding:120px 0 80px;
}
.hero::before {
    content:''; position:absolute; top:-30%; right:-20%; width:70%; height:90%;
    background:radial-gradient(ellipse,rgba(99,102,241,.08),transparent 70%);
    pointer-events:none;
}

.hero-content {
    display:grid; grid-template-columns:1fr 1fr; gap:80px; align-items:center;
}
.hero-text h1 {
    font-size:4rem; font-weight:800; line-height:1.1;
    letter-spacing:-0.03em; margin-bottom:20px;
}
.hero-text h1 .highlight {
    background:linear-gradient(135deg,var(--primary),var(--primary-light));
    -webkit-background-clip:text; -webkit-text-fill-color:transparent;
    background-clip:text;
}
.hero-text h1 .highlight-2 {
    background:linear-gradient(135deg,var(--secondary),var(--secondary-light));
    -webkit-background-clip:text; -webkit-text-fill-color:transparent;
    background-clip:text;
}
.hero-text p {
    font-size:1.1rem; color:var(--text-muted); margin-bottom:32px;
    max-width:520px; line-height:1.8;
}
.hero-buttons { display:flex; gap:12px; flex-wrap:wrap; }
.hero-stats {
    display:flex; gap:48px; margin-top:48px; padding-top:32px;
    border-top:1px solid var(--border);
}
.hero-stat { position:relative; }
.hero-stat h2 {
    font-size:2rem; font-weight:800; letter-spacing:-0.02em;
    background:linear-gradient(135deg,var(--text),var(--text-secondary));
    -webkit-background-clip:text; -webkit-text-fill-color:transparent;
    background-clip:text;
}
.hero-stat p { font-size:0.85rem; color:var(--text-muted); margin:0; }

.hero-visual { position:relative; display:flex; justify-content:center; align-items:center; }
.hero-card {
    background:rgba(255,255,255,0.75);
    backdrop-filter:blur(24px) saturate(1.4);
    -webkit-backdrop-filter:blur(24px) saturate(1.4);
    border:1px solid rgba(255,255,255,0.4);
    border-radius:var(--radius-xl); padding:44px; width:100%; max-width:480px;
    position:relative; box-shadow:0 8px 32px rgba(0,0,0,0.06), 0 0 0 1px rgba(255,255,255,0.6) inset;
    transition:var(--transition);
}
.hero-card:hover {
    box-shadow:0 16px 48px rgba(99,102,241,0.12), 0 0 0 1px rgba(255,255,255,0.6) inset;
    transform:translateY(-4px);
}
.hero-card::before {
    content:''; position:absolute; top:-1px; left:20%; right:20%; height:2px;
    background:linear-gradient(90deg,transparent,var(--primary-light),transparent);
    border-radius:2px;
}
.hero-card-icon {
    width:64px; height:64px; border-radius:18px;
    background:linear-gradient(135deg,var(--primary),var(--primary-light));
    display:flex; align-items:center; justify-content:center;
    font-size:1.6rem; margin-bottom:20px; color:#fff;
    box-shadow:0 8px 24px rgba(99,102,241,0.25);
    transition:transform .4s;
}
.hero-card:hover .hero-card-icon { transform:scale(1.08) rotate(-5deg); }
.hero-card h3 { font-size:1.3rem; font-weight:700; margin-bottom:8px; }
.hero-card p { color:var(--text-muted); font-size:0.9rem; line-height:1.7; }

.floating-badge {
    position:absolute;
    background:rgba(255,255,255,0.85);
    backdrop-filter:blur(20px);
    -webkit-backdrop-filter:blur(20px);
    border:1px solid rgba(255,255,255,0.5);
    border-radius:14px; padding:14px 18px;
    display:flex; align-items:center; gap:12px;
    box-shadow:0 8px 32px rgba(0,0,0,0.08);
    animation:float 6s ease-in-out infinite;
}
.floating-badge-1 { top:-16px; right:-16px; animation-delay:0s; }
.floating-badge-2 { bottom:-10px; left:-24px; animation-delay:-3s; }
.floating-badge .badge-icon {
    width:40px; height:40px; border-radius:10px;
    display:flex; align-items:center; justify-content:center;
    font-size:1rem; color:#fff;
}
.floating-badge-1 .badge-icon { background:linear-gradient(135deg,var(--secondary),var(--secondary-light)); }
.floating-badge-2 .badge-icon { background:linear-gradient(135deg,var(--accent),var(--accent-light)); }
.floating-badge .badge-text h4 { font-size:0.85rem; font-weight:600; }
.floating-badge .badge-text p { font-size:0.72rem; color:var(--text-muted); }

@keyframes float {
    0%,100% { transform:translateY(0); }
    50% { transform:translateY(-12px); }
}

/* ===== Section Common ===== */
.section { padding:100px 0; }
.section-header { text-align:center; margin-bottom:60px; }
.section-header h2 {
    font-size:2.5rem; font-weight:800; margin-bottom:16px;
    letter-spacing:-0.02em; position:relative; display:inline-block;
}
.section-header h2::after {
    content:''; display:block; width:60px; height:4px;
    background:linear-gradient(90deg,var(--primary),var(--primary-light));
    border-radius:4px; margin:12px auto 0;
}
.section-header h2 span {
    background:linear-gradient(135deg,var(--primary),var(--primary-light));
    -webkit-background-clip:text; -webkit-text-fill-color:transparent;
    background-clip:text;
}
.section-header p {
    color:var(--text-muted); font-size:1.05rem;
    max-width:600px; margin:0 auto;
}

/* ===== Features Section ===== */
.features-grid {
    display:grid; grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
    gap:20px;
}
.feature-card {
    background:var(--surface); border:1px solid var(--border);
    border-radius:var(--radius); padding:32px 28px;
    transition:var(--transition); position:relative; overflow:hidden;
    box-shadow:var(--shadow-sm);
}
.feature-card::before {
    content:''; position:absolute; top:0; left:0; right:0; height:3px;
    background:linear-gradient(90deg,var(--primary),var(--primary-light));
    transform:scaleX(0); transform-origin:left; transition:transform .4s;
}
.feature-card:hover::before { transform:scaleX(1); }
.feature-card:hover {
    transform:translateY(-8px); border-color:var(--primary-light);
    box-shadow:var(--shadow-lg), 0 0 0 1px rgba(99,102,241,0.06);
}
.feature-icon {
    width:52px; height:52px; border-radius:14px;
    display:flex; align-items:center; justify-content:center;
    font-size:1.3rem; margin-bottom:18px;
    transition:transform .4s;
}
.feature-card:hover .feature-icon { transform:scale(1.12) rotate(-5deg); }
.feature-icon.purple { background:rgba(99,102,241,0.1); color:var(--primary); }
.feature-icon.teal { background:rgba(6,182,212,0.1); color:var(--secondary); }
.feature-icon.pink { background:rgba(245,158,11,0.1); color:var(--accent); }
.feature-icon.blue { background:rgba(99,102,241,0.06); color:var(--primary-light); }
.feature-card h3 { font-size:1.1rem; font-weight:700; margin-bottom:10px; }
.feature-card p { color:var(--text-muted); font-size:0.88rem; line-height:1.7; }

/* ===== Courses Section ===== */
.courses-wrap {
    display:flex; align-items:center; gap:16px; position:relative; z-index:1;
}
.courses-scroll {
    flex:1; overflow:hidden; scroll-behavior:smooth; scrollbar-width:none; -ms-overflow-style:none; padding:16px 0;
}
.courses-scroll::-webkit-scrollbar { display:none; }
.courses-track {
    display:flex; gap:24px; width:max-content;
}
.courses-track .course-card {
    width:300px; flex-shrink:0;
}
.course-card {
    background:var(--surface); border:1px solid var(--border);
    border-radius:var(--radius); overflow:hidden;
    transition:var(--transition); box-shadow:var(--shadow-sm);
}
.course-card:hover {
    transform:translateY(-8px); border-color:var(--primary-light);
    box-shadow:var(--shadow-xl), 0 0 0 1px rgba(99,102,241,0.06);
}
.course-image {
    height:180px;
    background:linear-gradient(135deg,#eef2ff,#e0e7ff);
    display:flex; align-items:center; justify-content:center;
    font-size:2.5rem; position:relative; overflow:hidden;
}
.course-image.has-img::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,transparent 50%,rgba(0,0,0,.5));z-index:1}
.course-image.has-img .course-level{z-index:2}
.course-image .course-icon { position:relative; z-index:1; opacity:0.3; }
.course-level {
    position:absolute; top:14px; left:14px;
    padding:4px 14px; border-radius:50px;
    font-size:0.72rem; font-weight:600; z-index:2;
    background:rgba(255,255,255,0.9);
    backdrop-filter:blur(10px); border:1px solid var(--border);
}
.course-body { padding:24px; }
.course-meta {
    display:flex; gap:14px; margin-bottom:10px;
    font-size:0.82rem; color:var(--text-muted);
}
.course-meta span { display:flex; align-items:center; gap:5px; }
.course-body h3 {
    font-size:1.1rem; font-weight:700; margin-bottom:8px; line-height:1.4;
}
.course-body p {
    color:var(--text-muted); font-size:0.85rem; line-height:1.7;
    display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden;
}

/* ===== Feature Zone (Dark) ===== */
.feature-zone { background:#0f172a; position:relative; overflow:hidden; padding:100px 0; }
.feature-zone::before{content:'';position:absolute;top:-40%;left:-20%;width:60%;height:80%;background:radial-gradient(ellipse,rgba(99,102,241,.12),transparent 70%);pointer-events:none}
.feature-zone::after{content:'';position:absolute;bottom:-30%;right:-10%;width:50%;height:70%;background:radial-gradient(ellipse,rgba(6,182,212,.08),transparent 70%);pointer-events:none}
.fz-header{text-align:center;margin-bottom:56px;position:relative;z-index:1}
.fz-badge{display:inline-block;padding:5px 16px;border-radius:50px;font-size:.78rem;font-weight:600;background:rgba(99,102,241,.15);color:#818cf8;margin-bottom:16px;letter-spacing:.3px}
.fz-header h2{font-size:2.2rem;font-weight:800;color:#fff;margin-bottom:12px}
.fz-header h2 span{background:linear-gradient(135deg,#6366f1,#a78bfa);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.fz-header p{color:#94a3b8;font-size:1rem;max-width:540px;margin:0 auto}
.fz-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:24px;position:relative;z-index:1;margin-bottom:56px}
.fz-card{background:rgba(255,255,255,.04);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid rgba(255,255,255,.06);border-radius:20px;padding:36px 28px;transition:all .4s;text-align:center}
.fz-card:hover{background:rgba(255,255,255,.08);transform:translateY(-8px);border-color:rgba(255,255,255,.12);box-shadow:0 20px 60px rgba(99,102,241,.08)}
.fz-icon{width:56px;height:56px;border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:1.3rem;color:#fff;margin:0 auto 18px;transition:transform .4s}
.fz-card:hover .fz-icon{transform:scale(1.1) rotate(-5deg)}
.fz-card h4{color:#fff;font-size:1.05rem;font-weight:700;margin-bottom:6px}
.fz-card p{color:#94a3b8;font-size:.85rem;line-height:1.7}
.fz-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;position:relative;z-index:1}
.fz-stat{background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.06);border-radius:16px;padding:28px 24px;text-align:center;transition:all .3s}
.fz-stat:hover{background:rgba(255,255,255,.06);transform:translateY(-4px)}
.fz-num{font-size:1.8rem;font-weight:800;color:#fff;margin-bottom:4px}
.fz-stat p{color:#cbd5e1;font-size:.82rem;font-weight:500}

/* ===== Testimonials ===== */
.testi-section {
    position:relative; overflow:hidden;
    background:linear-gradient(180deg,var(--bg) 0%,#eef2ff 50%,var(--bg) 100%);
}
.testi-bg-glow {
    position:absolute; top:50%; left:50%; transform:translate(-50%,-50%);
    width:800px; height:800px;
    background:radial-gradient(ellipse,rgba(99,102,241,.06) 0%,transparent 70%);
    pointer-events:none;
}
.testi-section .section-header { margin-bottom:40px; }
.testi-carousel-wrap { display:flex; align-items:center; gap:16px; position:relative; z-index:1; }
.testi-carousel { flex:1; overflow:hidden; scroll-behavior:smooth; scrollbar-width:none; -ms-overflow-style:none; padding:16px 0; }
.testi-carousel::-webkit-scrollbar { display:none; }
.testi-track { display:flex; gap:24px; width:max-content; }

.testi-card {
    min-width:320px; max-width:320px; background:var(--surface);
    border:1px solid var(--border); border-radius:20px; padding:28px 26px;
    flex-shrink:0; transition:all .4s cubic-bezier(.4,0,.2,1); position:relative;
    box-shadow:0 4px 20px rgba(0,0,0,.04);
}
.testi-card:hover {
    transform:translateY(-8px); border-color:var(--primary-light);
    box-shadow:0 20px 60px rgba(99,102,241,.1), 0 0 0 1px rgba(99,102,241,.06);
}
.testi-card-top { display:flex; align-items:center; gap:14px; margin-bottom:18px; }
.testi-avatar {
    width:48px; height:48px; border-radius:14px;
    display:flex; align-items:center; justify-content:center;
    font-weight:700; font-size:1.1rem; color:#fff; flex-shrink:0;
    box-shadow:0 4px 12px rgba(0,0,0,.1);
    transition:transform .4s;
}
.testi-card:hover .testi-avatar { transform:scale(1.08) rotate(-5deg); }
.testi-user h4 { font-size:.95rem; font-weight:700; line-height:1.2; }
.testi-user span { font-size:.78rem; color:var(--text-muted); }
.testi-quote-icon { margin-left:auto; color:var(--primary); opacity:.12; font-size:1.6rem; }
.testi-card p {
    color:var(--text-secondary); font-size:.88rem; line-height:1.85;
    margin-bottom:16px; display:-webkit-box; -webkit-line-clamp:4;
    -webkit-box-orient:vertical; overflow:hidden;
}
.testi-stars { display:flex; gap:4px; color:#f59e0b; font-size:.8rem; }
.testi-dots {
    display:flex; justify-content:center; gap:8px; margin-top:28px;
}
.testi-dots .tdot {
    width:8px; height:8px; border-radius:50%;
    background:var(--text-light); cursor:pointer; transition:all .4s; border:none; padding:0;
}
.testi-dots .tdot.active { width:28px; border-radius:4px; background:var(--primary); }

.testi-btn {
    width:44px; height:44px; border-radius:50%;
    border:1px solid var(--border); background:var(--surface);
    color:var(--text-secondary); cursor:pointer;
    display:flex; align-items:center; justify-content:center;
    font-size:1rem; transition:var(--transition); flex-shrink:0;
    box-shadow:var(--shadow-sm); z-index:2;
}
.testi-btn:hover { background:var(--primary); color:#fff; border-color:var(--primary); box-shadow:var(--shadow-glow); }

/* ===== CTA Section ===== */
.cta-section {
    background:linear-gradient(135deg,#eef2ff,#e0e7ff);
    border:1px solid var(--border);
    border-radius:var(--radius-xl); padding:80px 60px;
    text-align:center; position:relative; overflow:hidden;
}
.cta-section::before {
    content:''; position:absolute; width:400px; height:400px;
    background:var(--primary); filter:blur(120px); opacity:0.08;
    top:-150px; right:-100px;
}
.cta-section::after {
    content:''; position:absolute; width:300px; height:300px;
    background:var(--secondary); filter:blur(100px); opacity:0.06;
    bottom:-100px; left:-80px;
}
.cta-section h2 {
    font-size:2.2rem; font-weight:800; margin-bottom:14px;
    letter-spacing:-0.02em;
}
.cta-section p {
    color:var(--text-muted); font-size:1.05rem;
    margin-bottom:32px; max-width:560px; margin-left:auto; margin-right:auto;
}
.cta-buttons { display:flex; gap:12px; justify-content:center; flex-wrap:wrap; }

/* ===== Footer ===== */
footer {
    background:var(--surface); border-top:1px solid var(--border);
    padding:64px 0 28px; position:relative;
}
footer::before {
    content:''; position:absolute; top:0; left:0; right:0; height:1px;
    background:linear-gradient(90deg,transparent,var(--primary-light),var(--secondary-light),transparent);
}
.footer-grid {
    display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:40px; margin-bottom:36px;
}
.footer-about .logo { margin-bottom:14px; }
.footer-about p {
    color:var(--text-muted); font-size:0.88rem; max-width:300px; line-height:1.8;
}
footer h4 { font-size:0.9rem; font-weight:600; margin-bottom:18px; }
.footer-links li { margin-bottom:10px; }
.footer-links a {
    color:var(--text-muted); font-size:0.88rem; transition:var(--transition);
    display:inline-flex; align-items:center; gap:6px;
}
.footer-links a:hover { color:var(--primary); transform:translateX(4px); }
.footer-bottom {
    padding-top:24px; border-top:1px solid var(--border-light);
    display:flex; justify-content:space-between; align-items:center;
    font-size:0.82rem; color:var(--text-muted);
}
.social-links { display:flex; gap:8px; align-items:center; }
.social-links a {
    width:38px; height:38px; border-radius:50%;
    background:var(--bg); border:1px solid var(--border);
    display:flex; align-items:center; justify-content:center;
    transition:var(--transition); color:var(--text-muted);
}
.social-links a:hover {
    background:var(--primary); border-color:var(--primary); color:#fff;
    transform:translateY(-3px); box-shadow:var(--shadow-glow);
}

/* ===== Page Header ===== */
.page-header {
    padding:140px 0 60px; text-align:center;
}
.page-header h1 {
    font-size:2.8rem; font-weight:800; margin-bottom:12px;
    letter-spacing:-0.02em;
}
.page-header p { color:var(--text-muted); font-size:1.05rem; }

/* ===== About Page ===== */
.about-content {
    display:grid; grid-template-columns:1fr 1fr; gap:60px; align-items:center;
}
.about-text h2 {
    font-size:1.8rem; font-weight:800; margin-bottom:16px;
    letter-spacing:-0.02em;
}
.about-text h2 span {
    background:linear-gradient(135deg,var(--primary),var(--primary-light));
    -webkit-background-clip:text; -webkit-text-fill-color:transparent;
    background-clip:text;
}
.about-text p { color:var(--text-muted); margin-bottom:14px; line-height:1.8; }
.about-image {
    background:var(--surface); border:1px solid var(--border);
    border-radius:var(--radius-lg); padding:40px;
    text-align:center; font-size:5rem; box-shadow:var(--shadow-lg);
}
.about-image i { color:var(--primary); opacity:0.3; }
.team-grid {
    display:grid; grid-template-columns:repeat(auto-fit,minmax(220px,1fr)); gap:20px; margin-top:40px;
}
.team-card {
    background:var(--surface); border:1px solid var(--border);
    border-radius:var(--radius); padding:28px; text-align:center;
    transition:var(--transition); box-shadow:var(--shadow-sm);
}
.team-card:hover {
    transform:translateY(-6px); border-color:var(--primary-light);
    box-shadow:var(--shadow-xl);
}
.team-card .avatar {
    width:72px; height:72px; border-radius:50%;
    background:linear-gradient(135deg,var(--primary),var(--primary-light));
    display:flex; align-items:center; justify-content:center;
    font-size:1.6rem; margin:0 auto 14px; color:#fff;
}
.team-card h4 { font-size:0.95rem; font-weight:600; margin-bottom:2px; }
.team-card span { color:var(--text-muted); font-size:0.82rem; }

/* ===== Contact Page ===== */
.contact-grid { display:grid; grid-template-columns:1fr 1fr; gap:60px; }
.contact-info h2 {
    font-size:1.8rem; font-weight:800; margin-bottom:14px;
    letter-spacing:-0.02em;
}
.contact-info > p { color:var(--text-muted); margin-bottom:32px; }
.contact-item {
    display:flex; gap:14px; margin-bottom:22px;
}
.contact-item .icon {
    width:48px; height:48px; min-width:48px;
    border-radius:12px; background:rgba(99,102,241,0.1);
    color:var(--primary); display:flex; align-items:center; justify-content:center;
    font-size:1.1rem;
}
.contact-item h4 { font-size:0.95rem; font-weight:600; margin-bottom:2px; }
.contact-item p { color:var(--text-muted); font-size:0.88rem; }
.contact-form {
    background:var(--surface); border:1px solid var(--border);
    border-radius:var(--radius-lg); padding:36px; box-shadow:var(--shadow-lg);
}
.form-group { margin-bottom:18px; }
.form-group label {
    display:block; font-size:0.85rem; font-weight:500; margin-bottom:6px; color:var(--text-secondary);
}
.form-control {
    width:100%; padding:12px 16px;
    background:var(--bg); border:1px solid var(--border);
    border-radius:var(--radius-sm); color:var(--text);
    font-size:0.9rem; font-family:inherit;
    transition:var(--transition); outline:none;
}
.form-control:focus {
    border-color:var(--primary); box-shadow:0 0 0 3px rgba(99,102,241,0.1);
}
.form-control::placeholder { color:var(--text-light); opacity:1; }
textarea.form-control { resize:vertical; min-height:110px; }

/* ===== Auth Pages ===== */
.auth-section { min-height:100vh; display:flex; align-items:center; justify-content:center; padding:120px 20px; }
.auth-box { width:100%; max-width:440px; }
.auth-box .card {
    background:var(--surface); border:1px solid var(--border);
    border-radius:var(--radius-lg); padding:40px; box-shadow:var(--shadow-lg);
}
.auth-box h2 { font-size:1.6rem; font-weight:800; text-align:center; margin-bottom:6px; }
.auth-box .subtitle { text-align:center; color:var(--text-muted); margin-bottom:28px; font-size:0.9rem; }
.auth-box .form-footer { text-align:center; margin-top:18px; font-size:0.88rem; color:var(--text-muted); }
.auth-box .form-footer a { color:var(--primary); font-weight:600; }
.auth-box .btn { width:100%; justify-content:center; }

/* ===== Alerts ===== */
.alert { padding:12px 16px; border-radius:var(--radius-sm); margin-bottom:18px; font-size:0.85rem; }
.alert-success {
    background:rgba(6,182,212,0.08); border:1px solid rgba(6,182,212,0.2); color:var(--secondary);
}
.alert-error {
    background:rgba(245,158,11,0.08); border:1px solid rgba(245,158,11,0.2); color:var(--accent);
}

/* ===== Toast ===== */
.toast-container{position:fixed;top:20px;left:50%;transform:translateX(-50%);z-index:99999;display:flex;flex-direction:column;gap:10px;pointer-events:none;max-width:420px;width:90%}
.toast{pointer-events:auto;padding:14px 20px;border-radius:12px;font-size:.85rem;font-weight:500;box-shadow:0 8px 32px rgba(0,0,0,.12);display:flex;align-items:center;gap:10px;animation:toastIn .35s cubic-bezier(.21,1.02,.73,1);direction:rtl;position:relative}
.toast.toast-hiding{animation:toastOut .3s ease forwards}
.toast i{font-size:1.1rem;flex-shrink:0}
.toast .toast-close{margin-right:auto;cursor:pointer;opacity:.6;font-size:.85rem;transition:.2s;background:none;border:none;color:inherit;padding:2px 6px}
.toast .toast-close:hover{opacity:1}
.toast-suc{background:#065f46;color:#fff}
.toast-err{background:#991b1b;color:#fff}
.toast-info{background:#1e3a5f;color:#fff}
@keyframes toastIn{from{transform:translateY(-100%);opacity:0}to{transform:translateY(0);opacity:1}}
@keyframes toastOut{from{transform:translateY(0);opacity:1}to{transform:translateY(-20px);opacity:0}}

/* ===== Course Details ===== */
.course-detail-header { padding:130px 0 60px; }
.course-detail-grid { display:grid; grid-template-columns:2fr 1fr; gap:40px; }
.course-detail-content h1 {
    font-size:2rem; font-weight:800; margin-bottom:14px; letter-spacing:-0.02em;
}
.course-detail-content .meta {
    display:flex; gap:20px; margin-bottom:20px; flex-wrap:wrap;
}
.course-detail-content .meta span {
    display:flex; align-items:center; gap:6px; color:var(--text-muted); font-size:0.85rem;
}
.course-detail-content .description { color:var(--text-secondary); line-height:1.8; margin-bottom:28px; }
.course-detail-content h2 { font-size:1.3rem; font-weight:700; margin:28px 0 14px; }
.learn-list { display:grid; grid-template-columns:1fr 1fr; gap:10px; }
.learn-list li {
    display:flex; align-items:center; gap:8px;
    font-size:0.88rem; color:var(--text-secondary);
}
.learn-list li i { color:var(--secondary); }
.course-sidebar { position:sticky; top:100px; }
.course-sidebar .card {
    background:var(--surface); border:1px solid var(--border);
    border-radius:var(--radius); padding:28px; box-shadow:var(--shadow-lg);
}
.course-sidebar .info-row {
    display:flex; justify-content:space-between;
    padding:10px 0; border-bottom:1px solid var(--border-light);
    font-size:0.88rem;
}
.course-sidebar .info-row span:last-child { color:var(--text-muted); }
.course-sidebar .btn { width:100%; justify-content:center; margin-top:18px; }

/* ===== Loading Spinner ===== */
.spinner {
    width:36px; height:36px;
    border:3px solid var(--border); border-top-color:var(--primary);
    border-radius:50%; animation:spin 0.7s linear infinite;
    margin:36px auto;
}
@keyframes spin { to { transform:rotate(360deg); } }

/* ===== Scrollbar ===== */
::-webkit-scrollbar { width:6px; }
::-webkit-scrollbar-track { background:var(--bg); }
::-webkit-scrollbar-thumb { background:var(--text-light); border-radius:3px; }
::-webkit-scrollbar-thumb:hover { background:var(--text-muted); }

/* ===== Profile Page ===== */
.profile-sidebar { text-align:center; }
.profile-sidebar .avatar {
    width:70px; height:70px; border-radius:50%;
    background:linear-gradient(135deg,var(--primary),var(--primary-light));
    display:flex; align-items:center; justify-content:center;
    font-size:1.6rem; margin:0 auto 12px; color:#fff;
}

/* ===== Instructor Slider ===== */
.inst-section { background:linear-gradient(180deg,var(--bg) 0%,#eef2ff 100%); }
.inst-wrap { position:relative; display:flex; align-items:center; gap:12px; }
.inst-scroll { overflow:hidden; width:100%; padding:12px 0; scroll-behavior:smooth; }
.inst-track { display:flex; gap:28px; width:max-content; }
.inst-btn,.courses-btn {
    flex-shrink:0; width:44px; height:44px; border-radius:50%;
    border:1px solid var(--border); background:#fff;
    color:var(--text-secondary); cursor:pointer;
    display:flex; align-items:center; justify-content:center;
    font-size:1rem; transition:var(--transition); box-shadow:var(--shadow-sm); z-index:2;
}
.inst-btn:hover,.courses-btn:hover { background:var(--primary); color:#fff; border-color:var(--primary); box-shadow:var(--shadow-glow); }
.inst-card {
    min-width:280px; max-width:280px; background:#fff;
    border-radius:20px; overflow:hidden;
    box-shadow:0 4px 20px rgba(0,0,0,.04);
    border:1px solid var(--border);
    transition:all .4s cubic-bezier(.4,0,.2,1);
}
.inst-card:hover { transform:translateY(-8px) scale(1.02); box-shadow:0 20px 60px rgba(99,102,241,.15); border-color:var(--primary-light); }
.inst-cover { height:220px; position:relative; overflow:hidden; background:linear-gradient(135deg,#eef2ff,#e0e7ff); }
.inst-cover img { width:100%; height:100%; object-fit:cover; transition:transform .6s; }
.inst-card:hover .inst-cover img { transform:scale(1.08); }
.inst-noimg { width:100%; height:100%; display:flex; align-items:center; justify-content:center; font-size:3rem; color:#c7d2fe; }
.inst-overlay { position:absolute; inset:0; background:linear-gradient(180deg,transparent 40%,rgba(15,23,42,.6)); opacity:0; transition:opacity .4s; display:flex; align-items:flex-end; justify-content:flex-end; padding:16px; }
.inst-card:hover .inst-overlay { opacity:1; }
.inst-social-dropdown { position:absolute; top:12px; left:12px; z-index:5; }
.inst-social-toggle { width:36px; height:36px; border-radius:50%; background:rgba(255,255,255,.9); backdrop-filter:blur(4px); display:flex; align-items:center; justify-content:center; color:var(--primary); font-size:.85rem; cursor:pointer; transition:.3s; box-shadow:0 2px 10px rgba(0,0,0,.15); }
.inst-social-toggle:hover { background:var(--primary); color:#fff; }
.inst-social-menu { position:absolute; top:40px; left:0; background:rgba(255,255,255,.95); backdrop-filter:blur(8px); border-radius:12px; padding:8px; display:flex; flex-direction:column; gap:6px; opacity:0; transform:translateY(-8px); pointer-events:none; transition:all .3s ease; box-shadow:0 8px 30px rgba(0,0,0,.15); min-width:44px; }
.inst-social-dropdown:hover .inst-social-menu { opacity:1; transform:translateY(0); pointer-events:auto; }
.inst-social-link { width:40px; height:40px; border-radius:10px; display:flex; align-items:center; justify-content:center; color:var(--text-secondary); font-size:1rem; transition:.3s; text-decoration:none; }
.inst-social-link:hover { background:var(--sc); color:#fff; transform:scale(1.1); }
.inst-info { padding:20px 22px 24px; }
.inst-info h4 { font-size:1.05rem; font-weight:700; margin-bottom:2px; }
.inst-info .inst-role { font-size:.8rem; color:var(--primary); font-weight:600; display:block; margin-bottom:8px; }
.inst-info p { font-size:.82rem; color:var(--text-muted); line-height:1.7; display:-webkit-box; -webkit-line-clamp:3; -webkit-box-orient:vertical; overflow:hidden; }

/* ===== Hero Slideshow ===== */
.hero-show{position:relative;overflow:hidden;height:100vh;background:#0f172a}
.hero-show-slide{position:absolute;inset:0;background-size:cover;background-position:center;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity 1s ease;z-index:1}
.hero-show-slide.active{opacity:1;z-index:2}
.hero-show-slide>.container{width:100%}
.hero-show-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(15,23,42,.65) 0%,rgba(15,23,42,.85) 100%)}
.hero-show-content{position:relative;z-index:3;text-align:center;color:#fff;max-width:750px;margin:0 auto;padding:120px 0 80px}
.hero-show-content h1{font-size:2.8rem;font-weight:800;margin-bottom:14px;text-shadow:0 4px 40px rgba(0,0,0,.4);color:#fff}
.hero-show-content p{font-size:1.15rem;opacity:.95;margin-bottom:28px;line-height:1.8;text-shadow:0 2px 12px rgba(0,0,0,.3);color:#fff}
.hero-show-content .hero-buttons{justify-content:center;pointer-events:auto}
.hero-show-btn{position:absolute;top:55%;transform:translateY(-50%);width:48px;height:48px;border-radius:50%;border:2px solid rgba(255,255,255,.35);background:rgba(255,255,255,.12);color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:1.1rem;backdrop-filter:blur(10px);transition:var(--transition);z-index:7}
.hero-show-btn:hover{background:var(--primary);border-color:var(--primary);box-shadow:0 4px 24px rgba(99,102,241,.4)}
.hero-show-prev{right:20px}
.hero-show-next{left:20px}
.hero-show-dots{position:absolute;bottom:40px;left:0;right:0;z-index:7;display:flex;justify-content:center;gap:10px}
.hero-show-dots .sdot{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,.4);cursor:pointer;transition:var(--transition);border:none;padding:0}
.hero-show-dots .sdot.active{background:#fff;width:30px;border-radius:5px}
.hero-show .hero-stats-bottom{position:absolute;bottom:80px;left:0;right:0;z-index:5;pointer-events:none}
.hero-show .hero-stats{display:flex;gap:48px;justify-content:center;border:none;margin-top:0;padding-top:0}
.hero-show .hero-stat{text-align:center;color:#fff}
.hero-show .hero-stat h2{font-size:2rem;font-weight:800;margin-bottom:2px;color:#fff}
.hero-show .hero-stat p{font-size:.85rem;opacity:.7}
@media(max-width:768px){.hero-show-content h1{font-size:2rem}.hero-show-content p{font-size:1rem}.hero-show-btn{width:36px;height:36px;font-size:.9rem;display:none}.hero-show .hero-stats{gap:24px}.hero-show-dots{bottom:24px}}

/* ===== Text Utilities ===== */
.text-gradient {
    background:linear-gradient(135deg,var(--primary),var(--primary-light));
    -webkit-background-clip:text; -webkit-text-fill-color:transparent;
    background-clip:text;
}

/* ===== Gallery Home ===== */
.gallery-home-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:20px; }
.gallery-home-item { position:relative; border-radius:var(--radius-lg); overflow:hidden; aspect-ratio:4/3; cursor:pointer; border:1px solid var(--border); transition:all .5s cubic-bezier(.4,0,.2,1); box-shadow:var(--shadow-sm); }
.gallery-home-item:hover { transform:translateY(-8px) scale(1.02); box-shadow:var(--shadow-xl); border-color:var(--primary-light); }
.gallery-home-item img { width:100%; height:100%; object-fit:cover; transition:transform .7s; }
.gallery-home-item:hover img { transform:scale(1.1); }
.gallery-home-overlay { position:absolute; inset:0; background:linear-gradient(180deg,transparent 30%,rgba(15,23,42,.85)); display:flex; align-items:flex-end; padding:20px; opacity:0; transition:opacity .4s; }
.gallery-home-item:hover .gallery-home-overlay { opacity:1; }
.gallery-home-overlay h3 { color:#fff; font-size:.95rem; font-weight:600; text-shadow:0 2px 12px rgba(0,0,0,.3); }
.gallery-home-actions { text-align:center; margin-top:36px; }

/* ===== Projects Home ===== */
.projects-home-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:20px; }
.project-home-card { background:#fff; border:1px solid var(--border); border-radius:var(--radius-lg); overflow:hidden; transition:all .5s cubic-bezier(.4,0,.2,1); box-shadow:var(--shadow-sm); }
.project-home-card:hover { transform:translateY(-8px); box-shadow:var(--shadow-xl); border-color:var(--primary-light); }
.project-home-image { height:180px; overflow:hidden; position:relative; background:linear-gradient(135deg,#eef2ff,#e0e7ff); }
.project-home-image img { width:100%; height:100%; object-fit:cover; transition:transform .7s; }
.project-home-card:hover .project-home-image img { transform:scale(1.08); }
.project-home-type { position:absolute; top:12px; left:12px; padding:4px 12px; border-radius:50px; font-size:.7rem; font-weight:600; color:#fff; z-index:2; }
.project-home-body { padding:20px 22px 24px; }
.project-home-body h3 { font-size:1rem; font-weight:700; margin-bottom:6px; }
.project-home-body p { font-size:.82rem; color:var(--text-muted); line-height:1.7; margin-bottom:14px; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; }
.project-home-actions { text-align:center; margin-top:36px; display:flex; gap:12px; justify-content:center; flex-wrap:wrap; }

/* ===== Scroll Reveal Animations ===== */
.reveal-up { opacity:0; transform:translateY(40px); transition:all .8s cubic-bezier(.22,1,.36,1); }
.reveal-up.revealed { opacity:1; transform:translateY(0); }
.reveal-scale { opacity:0; transform:scale(.9); transition:all .8s cubic-bezier(.22,1,.36,1); }
.reveal-scale.revealed { opacity:1; transform:scale(1); }

/* ===== Lightbox ===== */
.lightbox{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.92);z-index:9999;align-items:center;justify-content:center;backdrop-filter:blur(12px)}
.lightbox.open{display:flex}
.lightbox img{max-width:90vw;max-height:90vh;border-radius:12px;box-shadow:0 24px 80px rgba(0,0,0,.5);object-fit:contain;animation:lbIn .3s ease}
@keyframes lbIn{from{transform:scale(.9);opacity:0}to{transform:scale(1);opacity:1}}
.lightbox-close{position:fixed;top:24px;right:24px;width:48px;height:48px;border-radius:50%;background:rgba(255,255,255,.1);border:none;color:#fff;font-size:1.4rem;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:.3s;z-index:10000}
.lightbox-close:hover{background:rgba(255,255,255,.2);transform:rotate(90deg)}
.lightbox-title{position:fixed;bottom:32px;left:50%;transform:translateX(-50%);color:#fff;font-size:1rem;font-weight:600;background:rgba(0,0,0,.5);padding:8px 20px;border-radius:8px;backdrop-filter:blur(4px)}
.lightbox-nav{position:fixed;top:50%;transform:translateY(-50%);width:48px;height:48px;border-radius:50%;background:rgba(255,255,255,.1);border:none;color:#fff;font-size:1.2rem;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:.3s;z-index:10000}
.lightbox-nav:hover{background:rgba(255,255,255,.2)}
.lightbox-prev{left:24px}
.lightbox-next{right:24px}

/* ===== Floating Badge on Mobile: show as smaller ===== */
@media(max-width:768px){
    .floating-badge{display:flex;padding:8px 10px;gap:8px;border-radius:10px}
    .floating-badge-1{top:-8px;right:-8px}
    .floating-badge-2{bottom:-6px;left:-8px}
    .floating-badge .badge-icon{width:28px;height:28px;font-size:.75rem}
    .floating-badge .badge-text h4{font-size:.72rem}
    .floating-badge .badge-text p{font-size:.62rem}
}

/* ===== Gradient card accent on hover ===== */
.gradient-border {
    position:relative; background-clip:padding-box;
    border:1px solid transparent;
}
.gradient-border::before {
    content:''; position:absolute; inset:0; border-radius:inherit;
    padding:1px; background:linear-gradient(135deg,var(--primary),var(--primary-light));
    -webkit-mask:linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite:xor; mask-composite:exclude;
    opacity:0; transition:opacity .4s;
}
.gradient-border:hover::before { opacity:1; }