/* ============================================
   CatMind AI - Main Stylesheet
   Dark Glassmorphism Theme with Turquoise Accent
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800;900&family=Space+Grotesk:wght@400;500;600;700&display=swap');

:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #111118;
    --bg-card: rgba(255, 255, 255, 0.04);
    --bg-glass: rgba(255, 255, 255, 0.06);
    --bg-glass-hover: rgba(255, 255, 255, 0.10);
    --border-glass: rgba(255, 255, 255, 0.08);
    --border-glass-hover: rgba(255, 255, 255, 0.15);
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.65);
    --text-muted: rgba(255, 255, 255, 0.4);
    --accent: #00d4aa;
    --accent-light: #00f5c8;
    --accent-dark: #00a88a;
    --accent-glow: rgba(0, 212, 170, 0.25);
    --accent-subtle: rgba(0, 212, 170, 0.08);
    --danger: #ff4757;
    --warning: #ffa502;
    --success: #2ed573;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --radius-pill: 50px;
    --blur-sm: 10px;
    --blur-md: 20px;
    --blur-lg: 40px;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
    --shadow-md: 0 8px 32px rgba(0,0,0,0.4);
    --shadow-lg: 0 16px 64px rgba(0,0,0,0.5);
    --shadow-glow: 0 0 40px var(--accent-glow);
    --font-display: 'Poppins', sans-serif;
    --font-body: 'Poppins', sans-serif;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --container: 1200px;
}

/* ---- RESET ---- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
    font-family: var(--font-body);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; transition: var(--transition); }
img { max-width: 100%; height: auto; display: block; }
button, input, textarea, select {
    font-family: var(--font-body);
    border: none;
    outline: none;
    background: none;
    color: var(--text-primary);
}
ul, ol { list-style: none; }

/* ---- UTILITIES ---- */
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.glass {
    background: var(--bg-glass);
    backdrop-filter: blur(var(--blur-md));
    -webkit-backdrop-filter: blur(var(--blur-md));
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
}
.glass:hover {
    background: var(--bg-glass-hover);
    border-color: var(--border-glass-hover);
}
.accent-text { color: var(--accent); }
.accent-bg { background: var(--accent); color: var(--bg-primary); }
.text-center { text-align: center; }
.text-muted { color: var(--text-secondary); }

/* ---- BACKGROUND EFFECTS ---- */
.bg-grid {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background-image:
        linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none; z-index: 0;
}
.bg-glow {
    position: fixed; width: 600px; height: 600px; border-radius: 50%;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    pointer-events: none; z-index: 0; filter: blur(80px); opacity: 0.4;
}
.bg-glow-1 { top: -200px; right: -100px; }
.bg-glow-2 { bottom: -200px; left: -100px; }

/* ---- NAVBAR ---- */
.navbar {
    position: fixed; top: 0; left: 0; width: 100%; z-index: 1000;
    padding: 16px 0;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(var(--blur-lg));
    -webkit-backdrop-filter: blur(var(--blur-lg));
    border-bottom: 1px solid var(--border-glass);
    transition: var(--transition);
}
.navbar.scrolled { padding: 10px 0; background: rgba(10, 10, 15, 0.95); }
.navbar .container {
    display: flex; align-items: center; justify-content: space-between;
}
.navbar-brand {
    display: flex; align-items: center; gap: 10px;
    font-family: var(--font-display); font-weight: 700; font-size: 1.4rem;
}
.navbar-brand img { height: 36px; width: auto; }
.navbar-brand .brand-text span { color: var(--accent); }
.navbar-links { display: flex; align-items: center; gap: 32px; }
.navbar-links a {
    font-size: 0.9rem; font-weight: 500; color: var(--text-secondary);
    position: relative; padding: 4px 0;
}
.navbar-links a:hover, .navbar-links a.active { color: var(--text-primary); }
.navbar-links a::after {
    content: ''; position: absolute; bottom: -2px; left: 0; width: 0; height: 2px;
    background: var(--accent); transition: var(--transition); border-radius: 2px;
}
.navbar-links a:hover::after { width: 100%; }
.btn-cta {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 10px 24px; border-radius: var(--radius-pill);
    font-weight: 600; font-size: 0.9rem;
    background: var(--accent); color: var(--bg-primary);
    transition: var(--transition); cursor: pointer;
    border: 2px solid var(--accent);
}
.btn-cta:hover {
    background: transparent; color: var(--accent);
    box-shadow: var(--shadow-glow);
}
.btn-cta i { font-size: 0.85rem; }
.btn-outline {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 10px 24px; border-radius: var(--radius-pill);
    font-weight: 600; font-size: 0.9rem;
    border: 1.5px solid var(--border-glass-hover); color: var(--text-primary);
    transition: var(--transition); cursor: pointer;
}
.btn-outline:hover {
    border-color: var(--accent); color: var(--accent);
    background: var(--accent-subtle);
}
.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 8px; }
.hamburger span {
    width: 24px; height: 2px; background: var(--text-primary);
    transition: var(--transition); border-radius: 2px;
}
.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); }

/* ---- HERO ---- */
.hero {
    position: relative; min-height: 100vh;
    display: flex; align-items: center;
    padding: 120px 0 80px; overflow: hidden;
}
.hero .container {
    display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center;
}
.hero-badge {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 6px 16px; border-radius: var(--radius-pill);
    background: var(--accent-subtle); border: 1px solid rgba(0,212,170,0.2);
    font-size: 0.8rem; font-weight: 500; color: var(--accent);
    margin-bottom: 20px;
}
.hero-badge i { font-size: 0.7rem; }
.hero h1 {
    font-family: var(--font-display); font-size: clamp(2.8rem, 5vw, 4.5rem);
    font-weight: 800; line-height: 1.05; letter-spacing: -0.02em;
    margin-bottom: 24px;
}
.hero h1 .accent-line {
    display: block; position: relative;
}
.hero h1 .accent-line::after {
    content: ''; position: absolute; bottom: 4px; left: 0;
    width: 100%; height: 8px; background: var(--accent); opacity: 0.3;
    border-radius: 4px; z-index: -1;
}
.hero-hook {
    font-size: 1.15rem; color: var(--text-secondary); margin-bottom: 16px;
    min-height: 30px; font-weight: 400;
}
.hero-stats {
    display: flex; gap: 32px; margin-bottom: 32px;
}
.hero-stat .stat-number {
    font-size: 1.8rem; font-weight: 700; color: var(--accent);
}
.hero-stat .stat-label {
    font-size: 0.75rem; color: var(--text-muted); text-transform: uppercase;
    letter-spacing: 0.1em;
}
.hero-ctas { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-visual {
    position: relative; display: flex; justify-content: center; align-items: center;
}
.hero-image-container {
    position: relative; width: 100%; max-width: 500px; aspect-ratio: 1;
}
.hero-image-container img {
    width: 100%; height: 100%; object-fit: cover;
    border-radius: var(--radius-xl);
    mask-image: radial-gradient(ellipse 85% 85% at 50% 50%, black 50%, transparent 100%);
    -webkit-mask-image: radial-gradient(ellipse 85% 85% at 50% 50%, black 50%, transparent 100%);
}
.hero-float-card {
    position: absolute; padding: 12px 18px;
    background: rgba(17, 17, 24, 0.85);
    backdrop-filter: blur(var(--blur-md));
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    display: flex; align-items: center; gap: 10px;
    font-size: 0.85rem; font-weight: 500;
    animation: float 6s ease-in-out infinite;
}
.hero-float-card.card-1 { top: 10%; right: -10%; animation-delay: 0s; }
.hero-float-card.card-2 { bottom: 15%; left: -5%; animation-delay: 2s; }
.hero-float-card.card-3 { top: 45%; right: -15%; animation-delay: 4s; }
.hero-float-card i { color: var(--accent); font-size: 1.1rem; }

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

/* ---- COUNTDOWN BANNER ---- */
.countdown-banner {
    background: linear-gradient(135deg, var(--accent-dark), var(--accent));
    color: var(--bg-primary); padding: 16px 0;
    font-weight: 600; font-size: 0.95rem;
}
.countdown-banner .container {
    display: flex; align-items: center; justify-content: center; gap: 24px;
    flex-wrap: wrap;
}
.countdown-timer { display: flex; gap: 12px; }
.countdown-unit {
    display: flex; flex-direction: column; align-items: center;
    background: rgba(0,0,0,0.2); padding: 6px 12px; border-radius: var(--radius-sm);
    min-width: 50px;
}
.countdown-unit .number { font-size: 1.3rem; font-weight: 800; line-height: 1; }
.countdown-unit .label { font-size: 0.6rem; text-transform: uppercase; letter-spacing: 0.1em; opacity: 0.8; }

/* ---- PARTNERS / TRUSTED BY ---- */
.partners {
    padding: 40px 0; border-bottom: 1px solid var(--border-glass);
}
.partners .container {
    display: flex; align-items: center; gap: 40px;
    overflow-x: auto; justify-content: center;
}
.partners .partner-item {
    font-size: 0.9rem; font-weight: 600; color: var(--text-muted);
    white-space: nowrap; display: flex; align-items: center; gap: 8px;
    opacity: 0.5; transition: var(--transition);
}
.partners .partner-item:hover { opacity: 1; color: var(--text-secondary); }
.partners .partner-item i { font-size: 1.2rem; }

/* ---- SECTIONS GENERIC ---- */
section { padding: 100px 0; position: relative; }
.section-badge {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 6px 16px; border-radius: var(--radius-pill);
    background: var(--accent-subtle); border: 1px solid rgba(0,212,170,0.15);
    font-size: 0.75rem; font-weight: 600; color: var(--accent);
    text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 16px;
}
.section-title {
    font-family: var(--font-display); font-size: clamp(2rem, 3.5vw, 3rem);
    font-weight: 800; line-height: 1.1; margin-bottom: 16px;
    letter-spacing: -0.02em;
}
.section-subtitle {
    font-size: 1.05rem; color: var(--text-secondary); max-width: 600px;
    margin-bottom: 48px;
}

/* ---- FEATURES ---- */
.features-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.feature-card {
    padding: 36px; border-radius: var(--radius-lg);
    background: var(--bg-glass);
    backdrop-filter: blur(var(--blur-sm));
    border: 1px solid var(--border-glass);
    transition: var(--transition); cursor: default;
}
.feature-card:hover {
    background: var(--bg-glass-hover);
    border-color: var(--border-glass-hover);
    transform: translateY(-4px);
}
.feature-icon {
    width: 52px; height: 52px; border-radius: var(--radius-md);
    background: var(--accent-subtle); border: 1px solid rgba(0,212,170,0.15);
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 20px; font-size: 1.3rem; color: var(--accent);
}
.feature-card h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 10px; }
.feature-card p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.6; }

/* ---- COURSES ---- */
.courses-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); gap: 28px; }
.course-card {
    border-radius: var(--radius-lg); overflow: hidden;
    background: var(--bg-glass); border: 1px solid var(--border-glass);
    transition: var(--transition);
}
.course-card:hover {
    border-color: var(--accent); transform: translateY(-6px);
    box-shadow: var(--shadow-glow);
}
.course-card-image {
    width: 100%; height: 200px; overflow: hidden; position: relative;
}
.course-card-image img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
.course-card:hover .course-card-image img { transform: scale(1.05); }
.course-card-badge {
    position: absolute; top: 12px; left: 12px;
    padding: 4px 12px; border-radius: var(--radius-pill);
    background: var(--accent); color: var(--bg-primary);
    font-size: 0.7rem; font-weight: 700; text-transform: uppercase;
}
.course-card-body { padding: 24px; }
.course-card-body h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; }
.course-card-body p { font-size: 0.85rem; color: var(--text-secondary); margin-bottom: 16px; }
.course-meta { display: flex; gap: 16px; margin-bottom: 16px; }
.course-meta span {
    display: flex; align-items: center; gap: 6px;
    font-size: 0.8rem; color: var(--text-muted);
}
.course-meta span i { color: var(--accent); font-size: 0.75rem; }
.course-pricing { display: flex; align-items: center; gap: 12px; margin-bottom: 20px; }
.course-price-current { font-size: 1.6rem; font-weight: 800; color: var(--accent); }
.course-price-original {
    font-size: 1rem; color: var(--text-muted);
    text-decoration: line-through;
}

/* ---- TESTIMONIALS ---- */
.testimonials-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.testimonial-card {
    padding: 32px; border-radius: var(--radius-lg);
    background: var(--bg-glass); border: 1px solid var(--border-glass);
    transition: var(--transition);
}
.testimonial-card:hover { background: var(--bg-glass-hover); }
.testimonial-stars { color: var(--warning); margin-bottom: 16px; font-size: 0.85rem; }
.testimonial-text {
    font-size: 0.95rem; color: var(--text-secondary); margin-bottom: 20px;
    font-style: italic; line-height: 1.7;
}
.testimonial-author { display: flex; align-items: center; gap: 12px; }
.testimonial-avatar {
    width: 44px; height: 44px; border-radius: 50%;
    background: var(--accent-subtle); border: 2px solid var(--accent);
    display: flex; align-items: center; justify-content: center;
    font-weight: 700; color: var(--accent); font-size: 1rem;
    overflow: hidden;
}
.testimonial-avatar img { width: 100%; height: 100%; object-fit: cover; }
.testimonial-name { font-weight: 600; font-size: 0.9rem; }
.testimonial-role { font-size: 0.75rem; color: var(--text-muted); }

/* ---- BLOG ---- */
.blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.blog-card {
    border-radius: var(--radius-lg); overflow: hidden;
    background: var(--bg-glass); border: 1px solid var(--border-glass);
    transition: var(--transition);
}
.blog-card:hover { transform: translateY(-4px); border-color: var(--border-glass-hover); }
.blog-card-image { width: 100%; height: 180px; overflow: hidden; }
.blog-card-image img { width: 100%; height: 100%; object-fit: cover; }
.blog-card-body { padding: 20px; }
.blog-card-body h3 { font-size: 1rem; font-weight: 700; margin-bottom: 8px; }
.blog-card-body p { font-size: 0.85rem; color: var(--text-secondary); margin-bottom: 12px; }
.blog-card-date { font-size: 0.75rem; color: var(--text-muted); }

/* ---- CTA SECTION ---- */
.cta-section {
    background: linear-gradient(135deg, rgba(0,212,170,0.1) 0%, rgba(0,212,170,0.02) 100%);
    border-top: 1px solid rgba(0,212,170,0.15);
    border-bottom: 1px solid rgba(0,212,170,0.15);
}
.cta-section .section-title { max-width: 700px; margin: 0 auto 16px; }
.cta-section .section-subtitle { margin: 0 auto 32px; text-align: center; }
.cta-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ---- FOOTER ---- */
.footer {
    padding: 60px 0 100px; border-top: 1px solid var(--border-glass);
    background: var(--bg-secondary);
}
.footer-grid {
    display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px;
    margin-bottom: 40px;
}
.footer-brand p { color: var(--text-secondary); font-size: 0.85rem; margin-top: 12px; max-width: 300px; }
.footer-col h4 {
    font-size: 0.8rem; font-weight: 700; text-transform: uppercase;
    letter-spacing: 0.1em; color: var(--text-muted); margin-bottom: 16px;
}
.footer-col a {
    display: block; padding: 4px 0; font-size: 0.9rem; color: var(--text-secondary);
}
.footer-col a:hover { color: var(--accent); }
.footer-bottom {
    display: flex; justify-content: space-between; align-items: center;
    padding-top: 24px; border-top: 1px solid var(--border-glass);
    font-size: 0.8rem; color: var(--text-muted);
}

/* ---- DYNAMIC ISLAND ---- */
.dynamic-island {
    position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%);
    z-index: 999; display: flex; align-items: center; gap: 12px;
    padding: 10px 20px;
    background: rgba(17, 17, 24, 0.92);
    backdrop-filter: blur(var(--blur-lg));
    -webkit-backdrop-filter: blur(var(--blur-lg));
    border: 1px solid var(--border-glass-hover);
    border-radius: var(--radius-pill);
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
    animation: islandAppear 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) 1s both;
}
@keyframes islandAppear {
    from { opacity: 0; transform: translateX(-50%) translateY(40px) scale(0.8); }
    to { opacity: 1; transform: translateX(-50%) translateY(0) scale(1); }
}
.dynamic-island:hover { border-color: var(--accent); box-shadow: var(--shadow-glow); }
.island-btn {
    display: flex; align-items: center; justify-content: center;
    width: 40px; height: 40px; border-radius: 50%;
    background: var(--bg-glass); border: 1px solid var(--border-glass);
    transition: var(--transition); cursor: pointer; color: var(--text-secondary);
    font-size: 1rem;
}
.island-btn:hover { background: var(--accent); color: var(--bg-primary); border-color: var(--accent); }
.island-divider { width: 1px; height: 28px; background: var(--border-glass); }
.island-cta {
    display: flex; align-items: center; gap: 8px;
    padding: 8px 20px; border-radius: var(--radius-pill);
    background: var(--accent); color: var(--bg-primary);
    font-weight: 700; font-size: 0.85rem; cursor: pointer;
    transition: var(--transition);
}
.island-cta:hover { background: var(--accent-light); box-shadow: var(--shadow-glow); }

/* ---- WHATSAPP FLOATING BUTTON ---- */
.whatsapp-float {
    position: fixed; bottom: 90px; right: 24px; z-index: 998;
    width: 56px; height: 56px; border-radius: 50%;
    background: #25D366; color: white;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.6rem; cursor: pointer;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    transition: var(--transition);
    animation: pulse 2s infinite;
}
.whatsapp-float:hover { transform: scale(1.1); box-shadow: 0 6px 30px rgba(37, 211, 102, 0.5); }
@keyframes pulse {
    0%, 100% { box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4); }
    50% { box-shadow: 0 4px 30px rgba(37, 211, 102, 0.6); }
}

/* ---- CHECKOUT PAGE ---- */
.checkout-page { min-height: 100vh; padding: 120px 0 160px; }
.checkout-container { max-width: 600px; margin: 0 auto; }
.checkout-card {
    padding: 40px; border-radius: var(--radius-xl);
    background: var(--bg-glass); border: 1px solid var(--border-glass);
    backdrop-filter: blur(var(--blur-md));
}
.checkout-title { font-size: 1.5rem; font-weight: 800; margin-bottom: 8px; }
.checkout-subtitle { font-size: 0.9rem; color: var(--text-secondary); margin-bottom: 32px; }
.form-group { margin-bottom: 20px; }
.form-label {
    display: block; font-size: 0.8rem; font-weight: 600; color: var(--text-secondary);
    margin-bottom: 6px; text-transform: uppercase; letter-spacing: 0.05em;
}
.form-input {
    width: 100%; padding: 12px 16px; border-radius: var(--radius-md);
    background: rgba(255,255,255,0.05); border: 1px solid var(--border-glass);
    color: var(--text-primary); font-size: 0.95rem;
    transition: var(--transition);
}
.form-input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-subtle); }
.form-input::placeholder { color: var(--text-muted); }
.redeem-row { display: flex; gap: 8px; }
.redeem-row .form-input { flex: 1; }
.btn-apply-redeem {
    padding: 12px 20px; border-radius: var(--radius-md);
    background: var(--accent-subtle); border: 1px solid rgba(0,212,170,0.2);
    color: var(--accent); font-weight: 600; cursor: pointer;
    transition: var(--transition); white-space: nowrap;
}
.btn-apply-redeem:hover { background: var(--accent); color: var(--bg-primary); }
.checkout-summary {
    padding: 20px; margin: 24px 0;
    background: rgba(255,255,255,0.03); border-radius: var(--radius-md);
    border: 1px solid var(--border-glass);
}
.summary-row { display: flex; justify-content: space-between; margin-bottom: 8px; font-size: 0.9rem; }
.summary-row.total { font-size: 1.2rem; font-weight: 800; color: var(--accent); border-top: 1px solid var(--border-glass); padding-top: 12px; margin-top: 12px; }
.discount-badge { color: var(--success); font-size: 0.85rem; }

/* ---- SUCCESS PAGE ---- */
.success-page {
    min-height: 100vh; display: flex; align-items: center;
    justify-content: center; padding: 40px 24px; text-align: center;
}
.success-card {
    max-width: 500px; padding: 48px; border-radius: var(--radius-xl);
    background: var(--bg-glass); border: 1px solid var(--border-glass);
    backdrop-filter: blur(var(--blur-md));
}
.success-icon {
    width: 80px; height: 80px; border-radius: 50%;
    background: rgba(46, 213, 115, 0.15); border: 2px solid var(--success);
    display: flex; align-items: center; justify-content: center;
    margin: 0 auto 24px; font-size: 2rem; color: var(--success);
}
.success-card h1 { font-size: 1.8rem; font-weight: 800; margin-bottom: 12px; }
.success-card p { color: var(--text-secondary); margin-bottom: 24px; }

/* ---- CERTIFICATE PAGE ---- */
.certificate-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 40px; }
.certificate-frame {
    width: 100%; max-width: 800px; aspect-ratio: 1.414;
    background: linear-gradient(135deg, #0f0f1a 0%, #1a1a2e 100%);
    border: 3px solid var(--accent); border-radius: var(--radius-lg);
    padding: 60px; display: flex; flex-direction: column;
    align-items: center; justify-content: center; text-align: center;
    position: relative; overflow: hidden;
}
.certificate-frame::before {
    content: ''; position: absolute; inset: 12px;
    border: 1px solid rgba(0,212,170,0.2); border-radius: var(--radius-md);
    pointer-events: none;
}
.cert-logo { font-size: 1.2rem; font-weight: 700; color: var(--accent); margin-bottom: 24px; }
.cert-title { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.3em; color: var(--text-muted); margin-bottom: 12px; }
.cert-name { font-size: 2.2rem; font-weight: 800; margin-bottom: 16px; }
.cert-course { font-size: 1rem; color: var(--text-secondary); margin-bottom: 32px; max-width: 500px; }
.cert-date { font-size: 0.8rem; color: var(--text-muted); }

/* ---- BLOG SINGLE ---- */
.blog-single { max-width: 800px; margin: 0 auto; padding: 120px 24px 80px; }
.blog-single h1 { font-size: 2.2rem; font-weight: 800; margin-bottom: 16px; }
.blog-single .blog-meta { color: var(--text-muted); font-size: 0.85rem; margin-bottom: 32px; }
.blog-single-image { width: 100%; border-radius: var(--radius-lg); margin-bottom: 32px; }
.blog-content { font-size: 1.05rem; line-height: 1.8; color: var(--text-secondary); }
.blog-content h2 { color: var(--text-primary); font-size: 1.5rem; margin: 32px 0 16px; }
.blog-content p { margin-bottom: 16px; }
.blog-content a { color: var(--accent); text-decoration: underline; }

/* ---- MOBILE NAV ---- */
.mobile-nav {
    display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100vh;
    background: rgba(10,10,15,0.98);
    backdrop-filter: blur(var(--blur-lg));
    z-index: 999; flex-direction: column;
    align-items: center; justify-content: center; gap: 24px;
    opacity: 0; pointer-events: none; transition: var(--transition);
}
.mobile-nav.active { display: flex; opacity: 1; pointer-events: all; }
.mobile-nav a { font-size: 1.3rem; font-weight: 600; color: var(--text-secondary); }
.mobile-nav a:hover { color: var(--accent); }
.mobile-nav-close {
    position: absolute; top: 24px; right: 24px;
    font-size: 1.5rem; cursor: pointer; color: var(--text-secondary);
}

/* ---- RESPONSIVE ---- */
@media (max-width: 1024px) {
    .hero .container { grid-template-columns: 1fr; text-align: center; }
    .hero-visual { display: none; }
    .hero-stats { justify-content: center; }
    .hero-ctas { justify-content: center; }
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .testimonials-grid { grid-template-columns: repeat(2, 1fr); }
    .blog-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .navbar-links { display: none; }
    .hamburger { display: flex; }
    .hero { padding: 100px 0 60px; min-height: auto; }
    .hero h1 { font-size: 2.2rem; }
    .features-grid { grid-template-columns: 1fr; }
    .testimonials-grid { grid-template-columns: 1fr; }
    .courses-grid { grid-template-columns: 1fr; }
    .blog-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .countdown-banner .container { flex-direction: column; gap: 12px; }
    .dynamic-island { bottom: 16px; padding: 8px 14px; gap: 8px; }
    .island-cta { padding: 8px 14px; font-size: 0.8rem; }
    .island-btn { width: 36px; height: 36px; font-size: 0.9rem; }
    .whatsapp-float { bottom: 80px; right: 16px; width: 50px; height: 50px; font-size: 1.4rem; }
    .hero-float-card { display: none; }
    section { padding: 60px 0; }
    .checkout-card { padding: 24px; }
    .certificate-frame { padding: 30px; }
    .cert-name { font-size: 1.5rem; }
}

@media (max-width: 480px) {
    .hero h1 { font-size: 1.8rem; }
    .hero-stats { gap: 20px; }
    .hero-stat .stat-number { font-size: 1.4rem; }
    .section-title { font-size: 1.6rem; }
    .btn-cta, .btn-outline { padding: 10px 18px; font-size: 0.85rem; }
}

/* ---- SCROLL ANIMATIONS ---- */
.reveal {
    opacity: 0; transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* ---- LOADING ---- */
.page-loader {
    position: fixed; inset: 0; z-index: 9999;
    background: var(--bg-primary);
    display: flex; align-items: center; justify-content: center;
    transition: opacity 0.5s ease;
}
.page-loader.hidden { opacity: 0; pointer-events: none; }
.loader-brain {
    width: 60px; height: 60px; border: 3px solid var(--border-glass);
    border-top-color: var(--accent); border-radius: 50%;
    animation: spin 1s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }