/* ===== VARIABLES ===== */
:root {
    --bg: #0a0e1a;
    --bg2: #0f1525;
    --bg3: #141c30;
    --surface: #1a2235;
    --surface2: #1f2b42;
    --border: #2a3a55;
    --primary: #00d4ff;
    --primary-dark: #0099cc;
    --accent: #7c3aed;
    --accent2: #06b6d4;
    --green: #10b981;
    --yellow: #f59e0b;
    --red: #ef4444;
    --text: #e2e8f0;
    --text2: #94a3b8;
    --text3: #64748b;
    --font-mono: 'JetBrains Mono', monospace;
    --font-main: 'Manrope', sans-serif;
    --radius: 12px;
    --radius-lg: 20px;
    --shadow: 0 4px 24px rgba(0,0,0,0.4);
    --shadow-glow: 0 0 30px rgba(0,212,255,0.15);
    --transition: all 0.3s cubic-bezier(0.25,0.8,0.25,1);
}

/* ===== RESET ===== */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-main);
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    overflow-x: hidden;
}
h1,h2,h3,h4 { font-family: var(--font-main); font-weight: 800; line-height: 1.2; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== HEADER ===== */
header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    background: rgba(10,14,26,0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    transition: var(--transition);
}
header.scrolled { background: rgba(10,14,26,0.98); }
.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 24px;
}
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 800;
    font-family: var(--font-mono);
    color: var(--text);
}
.logo-icon {
    color: var(--primary);
    font-size: 1.6rem;
}
.logo-accent { color: var(--primary); }
nav ul { display: flex; gap: 8px; align-items: center; }
nav ul li a {
    color: var(--text2);
    font-size: 0.95rem;
    font-weight: 600;
    padding: 8px 14px;
    border-radius: 8px;
    transition: var(--transition);
}
nav ul li a:hover { color: var(--text); background: var(--surface); }
nav ul li a.nav-cta {
    background: var(--primary);
    color: var(--bg);
    padding: 8px 18px;
}
nav ul li a.nav-cta:hover { background: var(--primary-dark); transform: translateY(-1px); }
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text);
    font-size: 1.4rem;
    cursor: pointer;
    padding: 8px;
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: var(--radius);
    font-family: var(--font-main);
    font-weight: 700;
    font-size: 0.95rem;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    text-decoration: none;
}
.btn-primary {
    background: var(--primary);
    color: var(--bg);
}
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,212,255,0.3); }
.btn-ghost {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border);
}
.btn-ghost:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); }
.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 1px solid var(--primary);
    width: 100%;
    justify-content: center;
}
.btn-outline:hover { background: rgba(0,212,255,0.1); transform: translateY(-2px); }
.btn-full { width: 100%; justify-content: center; }

/* ===== SECTION LABELS ===== */
.section-label {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--primary);
    background: rgba(0,212,255,0.1);
    border: 1px solid rgba(0,212,255,0.3);
    padding: 4px 12px;
    border-radius: 20px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 14px;
}
.section-label.center { display: block; text-align: center; }
.section-title { font-size: 2.4rem; color: var(--text); margin-bottom: 48px; }
.section-title.center { text-align: center; }

/* ===== HERO ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    position: relative;
    overflow: hidden;
    background: radial-gradient(ellipse at 20% 50%, rgba(124,58,237,0.12) 0%, transparent 60%),
                radial-gradient(ellipse at 80% 20%, rgba(0,212,255,0.1) 0%, transparent 50%),
                var(--bg);
}
.hero-bg-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(0,212,255,0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,212,255,0.04) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
}
.hero-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    color: var(--green);
    background: rgba(16,185,129,0.1);
    border: 1px solid rgba(16,185,129,0.3);
    padding: 6px 14px;
    border-radius: 20px;
    margin-bottom: 24px;
}
.badge-dot {
    width: 8px; height: 8px;
    background: var(--green);
    border-radius: 50%;
    animation: pulse 2s infinite;
}
@keyframes pulse {
    0%,100% { opacity:1; transform:scale(1); }
    50% { opacity:0.5; transform:scale(1.3); }
}
.hero-title {
    font-size: 3.8rem;
    font-weight: 800;
    color: var(--text);
    margin-bottom: 20px;
    line-height: 1.1;
}
.hero-highlight {
    color: var(--primary);
    position: relative;
}
.hero-subtitle {
    font-size: 1.1rem;
    color: var(--text2);
    margin-bottom: 36px;
    line-height: 1.7;
}
.hero-stats {
    display: flex;
    align-items: center;
    gap: 24px;
    margin-bottom: 36px;
}
.stat { text-align: center; }
.stat-num { display: block; font-size: 2rem; font-weight: 800; color: var(--primary); font-family: var(--font-mono); }
.stat-label { font-size: 0.82rem; color: var(--text2); }
.stat-div { width: 1px; height: 40px; background: var(--border); }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* Terminal */
.terminal-window {
    background: #0d1117;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow), var(--shadow-glow);
    animation: fadeUp 0.8s ease-out 0.3s both;
}
@keyframes fadeUp {
    from { opacity:0; transform:translateY(30px); }
    to { opacity:1; transform:translateY(0); }
}
.terminal-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px 18px;
    background: #161b27;
    border-bottom: 1px solid var(--border);
}
.t-dot { width:12px; height:12px; border-radius:50%; }
.t-dot.red { background:#ef4444; }
.t-dot.yellow { background:#f59e0b; }
.t-dot.green { background:#10b981; }
.t-title { font-family: var(--font-mono); font-size:0.82rem; color:var(--text3); margin-left:8px; }
.terminal-body { padding:20px; font-family:var(--font-mono); font-size:0.88rem; min-height:240px; }
.t-line { margin-bottom:6px; }
.t-prompt { color:var(--primary); margin-right:8px; }
.t-cmd { color:var(--text); }
.t-out { color:var(--text3); padding-left:16px; }
.t-green { color:var(--green); }
.t-cursor {
    color:var(--primary);
    animation: blink 1s infinite;
}
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0} }

/* ===== TICKER ===== */
.ticker-wrap {
    background: var(--surface);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    overflow: hidden;
    padding: 14px 0;
}
.ticker {
    display: flex;
    gap: 28px;
    white-space: nowrap;
    animation: ticker 30s linear infinite;
    font-family: var(--font-mono);
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text2);
}
.ticker:hover { animation-play-state: paused; }
.tdot { color: var(--primary); }
@keyframes ticker { from{transform:translateX(0)} to{transform:translateX(-50%)} }

/* ===== ABOUT ===== */
.about {
    padding: 100px 0;
    background: var(--bg2);
}
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}
.about-photos { display: flex; flex-direction: column; gap: 16px; }
.photo-main {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
}
.photo-main img { width:100%; height:380px; object-fit:cover; object-position:center top; }
.photo-badge-overlay {
    position: absolute;
    bottom: 16px; left: 16px;
    background: rgba(0,212,255,0.9);
    color: var(--bg);
    font-weight: 700;
    font-size: 0.85rem;
    padding: 8px 14px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: 6px;
}
.photo-secondary {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}
.photo-secondary img {
    width:100%; height:180px;
    object-fit:cover; object-position:center top;
    border-radius: var(--radius);
    border: 1px solid var(--border);
}
.about-text { }
.about-text h2 { font-size:2rem; margin-bottom:16px; }
.about-lead { font-size:1.05rem; color:var(--text); margin-bottom:14px; }
.about-text > p { color:var(--text2); margin-bottom:28px; }
.skills-grid { display:flex; flex-direction:column; gap:16px; margin-bottom:28px; }
.skill-item { display:flex; align-items:center; gap:16px; }
.skill-icon {
    width:40px; height:40px;
    background:var(--surface2);
    border:1px solid var(--border);
    border-radius:10px;
    display:flex; align-items:center; justify-content:center;
    font-size:1.1rem;
    color:var(--primary);
    flex-shrink:0;
}
.skill-data { flex:1; }
.skill-name { font-size:0.88rem; font-weight:600; color:var(--text); margin-bottom:6px; }
.skill-bar {
    height:6px;
    background:var(--surface2);
    border-radius:3px;
    overflow:hidden;
}
.skill-fill {
    height:100%;
    width: var(--w);
    background: linear-gradient(90deg, var(--primary), var(--accent2));
    border-radius:3px;
    transition: width 1s ease;
}
.about-badges { display:flex; flex-wrap:wrap; gap:10px; }
.abadge {
    display:inline-flex; align-items:center; gap:6px;
    font-size:0.82rem; font-weight:600;
    background:var(--surface2);
    border:1px solid var(--border);
    color:var(--text2);
    padding:6px 12px;
    border-radius:20px;
}
.abadge i { color:var(--primary); }

/* ===== WHY SECTION ===== */
.why-section {
    padding: 100px 0;
    background: var(--bg);
}
.why-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.why-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    position: relative;
    transition: var(--transition);
}
.why-card:hover { border-color:var(--primary); transform:translateY(-4px); box-shadow:var(--shadow-glow); }
.why-num {
    font-family: var(--font-mono);
    font-size: 3rem;
    font-weight: 800;
    color: rgba(0,212,255,0.1);
    position: absolute;
    top: 16px; right: 20px;
    line-height: 1;
}
.why-icon {
    width:52px; height:52px;
    background:rgba(0,212,255,0.1);
    border:1px solid rgba(0,212,255,0.2);
    border-radius:12px;
    display:flex; align-items:center; justify-content:center;
    font-size:1.3rem; color:var(--primary);
    margin-bottom:20px;
}
.why-card h3 { font-size:1.1rem; margin-bottom:10px; }
.why-card p { font-size:0.9rem; color:var(--text2); line-height:1.6; }

/* ===== COURSES ===== */
.courses {
    padding: 100px 0;
    background: var(--bg2);
}
.courses-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.course-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 16px;
    transition: var(--transition);
}
.course-card:hover { border-color:var(--border); transform:translateY(-4px); box-shadow:var(--shadow); }
.course-card.featured {
    border-color: var(--primary);
    background: linear-gradient(135deg, rgba(0,212,255,0.05), var(--surface));
    box-shadow: var(--shadow-glow);
    grid-column: span 1;
}
.course-badge {
    position: absolute;
    top: -12px; right: 24px;
    background: var(--primary);
    color: var(--bg);
    font-size: 0.75rem;
    font-weight: 800;
    padding: 4px 12px;
    border-radius: 20px;
}
.course-icon {
    width:52px; height:52px;
    background:rgba(0,212,255,0.1);
    border:1px solid rgba(0,212,255,0.2);
    border-radius:12px;
    display:flex; align-items:center; justify-content:center;
    font-size:1.4rem; color:var(--primary);
}
.course-card h3 { font-size:1.15rem; color:var(--text); }
.course-card > p { font-size:0.9rem; color:var(--text2); line-height:1.6; }
.course-topics { display:flex; flex-direction:column; gap:8px; flex:1; }
.course-topics li {
    display:flex; align-items:center; gap:8px;
    font-size:0.88rem; color:var(--text2);
}
.course-topics li i { color:var(--green); font-size:0.75rem; flex-shrink:0; }
.course-meta {
    display:flex; gap:16px;
    font-family:var(--font-mono);
    font-size:0.8rem; color:var(--text3);
    padding-top:12px;
    border-top:1px solid var(--border);
}
.course-meta span { display:flex; align-items:center; gap:6px; }
.course-meta i { color:var(--primary); }

/* ===== PROGRAM ===== */
.program {
    padding: 100px 0;
    background: var(--bg);
}
.program-blocks { display:flex; flex-direction:column; gap:32px; }
.program-block {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}
.block-header {
    display:flex; align-items:center; gap:16px;
    padding:20px 28px;
    background:var(--surface2);
    border-bottom:1px solid var(--border);
}
.block-num {
    font-family:var(--font-mono);
    font-size:0.78rem; font-weight:700;
    color:var(--primary);
    background:rgba(0,212,255,0.1);
    border:1px solid rgba(0,212,255,0.2);
    padding:4px 10px;
    border-radius:20px;
}
.block-header h3 { font-size:1.1rem; flex:1; }
.block-count {
    font-size:0.82rem; color:var(--text3);
    font-family:var(--font-mono);
}
.lessons-list { padding:8px 0; }
.lesson-item {
    display:flex; align-items:center; gap:20px;
    padding:14px 28px;
    border-bottom:1px solid rgba(42,58,85,0.5);
    transition:var(--transition);
}
.lesson-item:last-child { border-bottom:none; }
.lesson-item:hover { background:rgba(0,212,255,0.04); }
.lesson-num {
    font-family:var(--font-mono);
    font-size:0.82rem; font-weight:700;
    color:var(--primary);
    width:28px; flex-shrink:0;
}
.lesson-title { font-size:0.95rem; font-weight:600; color:var(--text); margin-bottom:3px; }
.lesson-tools { font-family:var(--font-mono); font-size:0.78rem; color:var(--text3); }
.final-lesson { background:rgba(0,212,255,0.04); }
.final-lesson .lesson-title { color:var(--primary); }

/* ===== HOW IT WORKS ===== */
.how-section {
    padding: 100px 0;
    background: var(--bg2);
}
.how-steps {
    display:flex; align-items:flex-start; gap:0;
    justify-content:center;
}
.how-step {
    text-align:center;
    flex:1;
    padding:0 16px;
}
.step-circle {
    width:60px; height:60px;
    background:rgba(0,212,255,0.1);
    border:2px solid var(--primary);
    border-radius:50%;
    display:flex; align-items:center; justify-content:center;
    font-family:var(--font-mono);
    font-size:1.3rem; font-weight:800;
    color:var(--primary);
    margin:0 auto 16px;
}
.how-step h3 { font-size:1rem; margin-bottom:8px; }
.how-step p { font-size:0.85rem; color:var(--text2); line-height:1.6; }
.how-arrow {
    color:var(--border);
    font-size:1.2rem;
    padding-top:20px;
    flex-shrink:0;
}

/* ===== REVIEWS ===== */
.reviews {
    padding: 100px 0;
    background: var(--bg);
}
.reviews-grid {
    display:grid;
    grid-template-columns: repeat(3, 1fr);
    gap:24px;
}
.review-card {
    background:var(--surface);
    border:1px solid var(--border);
    border-radius:var(--radius-lg);
    padding:28px;
    display:flex; flex-direction:column; gap:16px;
    transition:var(--transition);
}
.review-card:hover { border-color:var(--primary); transform:translateY(-2px); }
.review-stars { color:var(--yellow); font-size:1rem; letter-spacing:2px; }
.review-text { font-size:0.9rem; color:var(--text2); line-height:1.7; flex:1; }
.review-author { display:flex; align-items:center; gap:12px; }
.review-avatar {
    width:44px; height:44px;
    background:linear-gradient(135deg, var(--primary), var(--accent));
    border-radius:50%;
    display:flex; align-items:center; justify-content:center;
    font-weight:800; font-size:1rem; color:var(--bg);
    flex-shrink:0;
}
.review-name { font-weight:700; font-size:0.9rem; }
.review-role { font-size:0.8rem; color:var(--text3); font-family:var(--font-mono); }

/* ===== CONTACT ===== */
.contact {
    padding: 100px 0;
    background: var(--bg2);
}
.contact-grid {
    display:grid;
    grid-template-columns:1fr 1.4fr;
    gap:80px;
    align-items:start;
}
.contact-info h2 { font-size:2rem; margin-bottom:14px; }
.contact-info > p { color:var(--text2); margin-bottom:36px; }
.contact-details { display:flex; flex-direction:column; gap:20px; }
.contact-item { display:flex; align-items:center; gap:16px; }
.contact-icon {
    width:46px; height:46px;
    background:rgba(0,212,255,0.1);
    border:1px solid rgba(0,212,255,0.2);
    border-radius:10px;
    display:flex; align-items:center; justify-content:center;
    font-size:1.1rem; color:var(--primary);
    flex-shrink:0;
}
.contact-label { font-size:0.78rem; color:var(--text3); font-family:var(--font-mono); }
.contact-value { font-weight:600; font-size:0.95rem; }
.contact-form-wrap {
    background:var(--surface);
    border:1px solid var(--border);
    border-radius:var(--radius-lg);
    padding:36px;
}
.contact-form { display:flex; flex-direction:column; gap:20px; }
.form-row { display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.form-group { display:flex; flex-direction:column; gap:6px; }
.form-group label { font-size:0.85rem; font-weight:600; color:var(--text2); }
.form-group input,
.form-group select,
.form-group textarea {
    background:var(--bg);
    border:1px solid var(--border);
    border-radius:var(--radius);
    padding:12px 16px;
    font-family:var(--font-main);
    font-size:0.95rem;
    color:var(--text);
    transition:var(--transition);
    outline:none;
    width:100%;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color:var(--primary);
    box-shadow:0 0 0 3px rgba(0,212,255,0.1);
}
.form-group select { appearance:none; cursor:pointer; }
.form-group select option { background:var(--bg2); }
.form-group textarea { resize:vertical; }
.field-error { font-size:0.78rem; color:var(--red); min-height:16px; }

/* ===== FOOTER ===== */
.footer {
    background: var(--bg);
    border-top: 1px solid var(--border);
    padding: 60px 0 0;
}
.footer-grid {
    display:grid;
    grid-template-columns:2fr 1fr 1fr 1fr;
    gap:40px;
    padding-bottom:48px;
}
.footer-brand .logo { font-size:1.2rem; margin-bottom:16px; }
.footer-brand p { font-size:0.88rem; color:var(--text3); line-height:1.7; }
.footer-links h4, .footer-social h4 { font-size:0.9rem; font-weight:700; margin-bottom:16px; color:var(--text); }
.footer-links ul { display:flex; flex-direction:column; gap:10px; }
.footer-links ul li a { font-size:0.88rem; color:var(--text3); transition:var(--transition); }
.footer-links ul li a:hover { color:var(--primary); }
.social-links { display:flex; gap:12px; margin-bottom:16px; }
.social-link {
    width:40px; height:40px;
    background:var(--surface);
    border:1px solid var(--border);
    border-radius:10px;
    display:flex; align-items:center; justify-content:center;
    font-size:1rem; color:var(--text2);
    transition:var(--transition);
}
.social-link:hover { border-color:var(--primary); color:var(--primary); }
.footer-contact-text { font-size:0.85rem; color:var(--text3); line-height:1.8; }
.footer-bottom {
    border-top:1px solid var(--border);
    padding:20px 0;
    text-align:center;
    font-size:0.82rem;
    color:var(--text3);
    font-family:var(--font-mono);
}

/* ===== BACK TO TOP ===== */
.back-to-top {
    position:fixed;
    bottom:28px; right:28px;
    width:46px; height:46px;
    background:var(--primary);
    color:var(--bg);
    border:none; border-radius:12px;
    font-size:1rem; cursor:pointer;
    display:flex; align-items:center; justify-content:center;
    opacity:0; pointer-events:none;
    transition:var(--transition);
    z-index:999;
    box-shadow:0 4px 16px rgba(0,212,255,0.4);
}
.back-to-top.active { opacity:1; pointer-events:all; }
.back-to-top:hover { transform:translateY(-2px); }

/* ===== ALERT ===== */
.custom-alert-overlay {
    position:fixed; inset:0;
    background:rgba(0,0,0,0.7);
    backdrop-filter:blur(4px);
    z-index:9999;
    display:none;
    align-items:center; justify-content:center;
}
.custom-alert-overlay.active { display:flex; }
.custom-alert-box {
    background:var(--surface);
    border:1px solid var(--border);
    border-radius:var(--radius-lg);
    padding:40px 36px;
    max-width:420px; width:90%;
    text-align:center;
    animation:fadeUp 0.3s ease;
}
.alert-icon { font-size:2.5rem; margin-bottom:16px; }
.custom-alert-box p { color:var(--text2); margin-bottom:24px; line-height:1.6; }

/* ===== ANIMATIONS ===== */
.fade-in { animation: fadeIn 0.7s ease both; }
@keyframes fadeIn { from{opacity:0;transform:translateY(20px)} to{opacity:1;transform:translateY(0)} }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .hero-inner { grid-template-columns:1fr; text-align:center; }
    .hero-visual { display:none; }
    .hero-stats { justify-content:center; }
    .hero-actions { justify-content:center; }
    .about-grid { grid-template-columns:1fr; gap:40px; }
    .photo-secondary { display:none; }
    .why-grid { grid-template-columns:repeat(2,1fr); }
    .courses-grid { grid-template-columns:repeat(2,1fr); }
    .reviews-grid { grid-template-columns:repeat(2,1fr); }
    .footer-grid { grid-template-columns:1fr 1fr; }
    .contact-grid { grid-template-columns:1fr; gap:40px; }
}
@media (max-width: 768px) {
    .hero-title { font-size:2.6rem; }
    .section-title { font-size:1.8rem; }
    .courses-grid { grid-template-columns:1fr; }
    .reviews-grid { grid-template-columns:1fr; }
    .why-grid { grid-template-columns:1fr 1fr; }
    .how-steps { flex-direction:column; align-items:center; gap:24px; }
    .how-arrow { transform:rotate(90deg); }
    .form-row { grid-template-columns:1fr; }
    nav { display:none; }
    nav.active { display:block; position:fixed; top:70px; left:0; right:0; background:rgba(10,14,26,0.98); padding:20px; border-bottom:1px solid var(--border); }
    nav.active ul { flex-direction:column; }
    .mobile-menu-btn { display:flex; }
    .footer-grid { grid-template-columns:1fr; }
}
@media (max-width: 480px) {
    .hero-title { font-size:2rem; }
    .why-grid { grid-template-columns:1fr; }
    .hero-stats { flex-wrap:wrap; gap:16px; }
    .stat-div { display:none; }
}

/* ===== ЦЕНЫ НА КУРСАХ ===== */
.course-price-row {
    display: flex;
    align-items: baseline;
    gap: 10px;
    padding: 14px 0 4px;
    border-top: 1px solid var(--border);
    margin-top: 4px;
}
.course-price {
    font-family: var(--font-mono);
    font-size: 1.7rem;
    font-weight: 800;
    color: var(--text);
    line-height: 1;
}
.course-price span { font-size: 1.1rem; color: var(--primary); }
.course-price-note {
    font-size: 0.78rem;
    color: var(--text3);
    font-family: var(--font-mono);
}

/* ===== МОДАЛЬНОЕ ОКНО ОПЛАТЫ ===== */
.modal-overlay {
    position: fixed; inset: 0;
    background: rgba(0,0,0,0.75);
    backdrop-filter: blur(6px);
    z-index: 9000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
}
.modal-overlay.active { display: flex; }
.modal-box {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 40px 36px;
    max-width: 460px;
    width: 100%;
    animation: fadeUp 0.3s ease;
    position: relative;
}
.modal-close {
    position: absolute;
    top: 16px; right: 18px;
    background: none; border: none;
    color: var(--text3); font-size: 1.3rem;
    cursor: pointer; transition: var(--transition);
}
.modal-close:hover { color: var(--text); }
.modal-title { font-size: 1.3rem; margin-bottom: 6px; }
.modal-course-name { color: var(--primary); font-family: var(--font-mono); font-size: 0.9rem; margin-bottom: 20px; }
.modal-price-block {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}
.modal-price-label { font-size: 0.85rem; color: var(--text2); }
.modal-price-val {
    font-family: var(--font-mono);
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--primary);
}
.modal-features { display: flex; flex-direction: column; gap: 8px; margin-bottom: 24px; }
.modal-features li {
    display: flex; align-items: center; gap: 8px;
    font-size: 0.88rem; color: var(--text2);
}
.modal-features li i { color: var(--green); font-size: 0.75rem; }
.modal-actions { display: flex; flex-direction: column; gap: 12px; }
.modal-actions .btn-tg {
    display: flex; align-items: center; justify-content: center; gap: 8px;
    background: #229ED9; color: #fff;
    padding: 12px; border-radius: var(--radius);
    font-weight: 700; font-size: 0.9rem;
    text-decoration: none; transition: var(--transition);
}
.modal-actions .btn-tg:hover { background: #1a8cbf; transform: translateY(-1px); }
.modal-divider {
    display: flex; align-items: center; gap: 12px;
    font-size: 0.8rem; color: var(--text3);
}
.modal-divider::before, .modal-divider::after {
    content: ''; flex: 1; height: 1px; background: var(--border);
}
.yukassa-badge {
    display: flex; align-items: center; justify-content: center; gap: 6px;
    font-size: 0.75rem; color: var(--text3);
    margin-top: 12px;
}
.yukassa-badge i { color: var(--green); }

/* ===== DASHBOARD STYLES ===== */
.dashboard-wrap { min-height: 100vh; background: var(--bg); padding: 100px 0 60px; }
.dashboard-header { margin-bottom: 40px; }
.dashboard-header h1 { font-size: 2rem; margin-bottom: 6px; }
.dashboard-header p { color: var(--text2); }
.dash-grid { display: grid; grid-template-columns: 280px 1fr; gap: 32px; align-items: start; }
.dash-sidebar {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    position: sticky; top: 100px;
}
.dash-user-avatar {
    width: 64px; height: 64px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.6rem; font-weight: 800; color: var(--bg);
    margin: 0 auto 16px;
}
.dash-user-name { text-align: center; font-weight: 700; font-size: 1rem; margin-bottom: 4px; }
.dash-user-email { text-align: center; font-size: 0.8rem; color: var(--text3); font-family: var(--font-mono); margin-bottom: 20px; }
.dash-nav { display: flex; flex-direction: column; gap: 4px; }
.dash-nav a {
    display: flex; align-items: center; gap: 10px;
    padding: 10px 14px; border-radius: 10px;
    font-size: 0.9rem; color: var(--text2);
    transition: var(--transition);
}
.dash-nav a:hover, .dash-nav a.active { background: rgba(0,212,255,0.1); color: var(--primary); }
.dash-nav a i { width: 18px; text-align: center; }
.dash-main { }
.dash-section-title { font-size: 1.2rem; margin-bottom: 20px; }
.my-courses-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 40px; }
.my-course-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 22px;
    display: flex; flex-direction: column; gap: 12px;
    transition: var(--transition);
}
.my-course-card:hover { border-color: var(--primary); transform: translateY(-2px); }
.my-course-icon {
    width: 42px; height: 42px;
    background: rgba(0,212,255,0.1);
    border: 1px solid rgba(0,212,255,0.2);
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.1rem; color: var(--primary);
}
.my-course-title { font-size: 0.95rem; font-weight: 700; }
.my-course-meta { font-size: 0.8rem; color: var(--text3); font-family: var(--font-mono); }
.my-course-card .btn { margin-top: auto; }
.empty-state {
    text-align: center; padding: 48px 24px;
    background: var(--surface); border: 1px dashed var(--border);
    border-radius: var(--radius-lg);
}
.empty-state i { font-size: 2.5rem; color: var(--text3); margin-bottom: 16px; display: block; }
.empty-state p { color: var(--text2); margin-bottom: 20px; }

/* ===== COURSE VIEW ===== */
.course-wrap { min-height: 100vh; background: var(--bg); padding: 100px 0 60px; }
.lessons-grid { display: flex; flex-direction: column; gap: 16px; }
.lesson-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px 28px;
    display: grid; grid-template-columns: 48px 1fr auto;
    gap: 20px; align-items: center;
    transition: var(--transition);
}
.lesson-card:hover { border-color: rgba(0,212,255,0.3); }
.lesson-card-num {
    width: 48px; height: 48px;
    background: rgba(0,212,255,0.1);
    border: 1px solid rgba(0,212,255,0.2);
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-family: var(--font-mono); font-weight: 700; color: var(--primary);
    flex-shrink: 0;
}
.lesson-card-title { font-weight: 700; font-size: 1rem; margin-bottom: 4px; }
.lesson-card-tools { font-family: var(--font-mono); font-size: 0.78rem; color: var(--text3); }
.lesson-status {
    padding: 4px 12px; border-radius: 20px;
    font-size: 0.75rem; font-weight: 700;
    font-family: var(--font-mono);
    white-space: nowrap;
}
.status-coming { background: rgba(100,116,139,0.15); color: var(--text3); }
.status-submitted { background: rgba(245,158,11,0.15); color: var(--yellow); }
.status-approved { background: rgba(16,185,129,0.15); color: var(--green); }
.status-rejected { background: rgba(239,68,68,0.15); color: var(--red); }
.task-form-block {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    margin-top: 16px;
    grid-column: 1 / -1;
}
.task-form-block textarea {
    width: 100%;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 12px 16px;
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 0.88rem;
    resize: vertical;
    min-height: 100px;
    outline: none;
    margin-bottom: 12px;
    transition: var(--transition);
}
.task-form-block textarea:focus { border-color: var(--primary); }
.video-placeholder {
    background: var(--bg2);
    border: 1px dashed var(--border);
    border-radius: var(--radius);
    padding: 32px;
    text-align: center;
    color: var(--text3);
    font-size: 0.88rem;
    margin-bottom: 16px;
}
.video-placeholder i { font-size: 2rem; display: block; margin-bottom: 10px; }

/* AUTH PAGE */
.auth-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: var(--bg); padding: 80px 20px; }
.auth-box {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 44px 40px;
    width: 100%; max-width: 420px;
}
.auth-logo { text-align: center; margin-bottom: 28px; }
.auth-title { font-size: 1.5rem; text-align: center; margin-bottom: 6px; }
.auth-sub { font-size: 0.88rem; color: var(--text2); text-align: center; margin-bottom: 28px; }
.auth-switch { text-align: center; margin-top: 20px; font-size: 0.88rem; color: var(--text2); }
.auth-switch a { color: var(--primary); }