/* ===== EDUON - Fullscreen Visual Style (Class101/Coursera inspired) ===== */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=Noto+Sans+KR:wght@400;500;700;800&display=swap');

:root {
  --primary: #EA580C;
  --primary-light: #FB923C;
  --primary-dark: #C2410C;
  --accent: #16A34A;
  --dark: #0F172A;
  --dark-800: #1E293B;
  --dark-700: #334155;
  --white: #FFFFFF;
  --gray-50: #F8FAFC;
  --gray-100: #F1F5F9;
  --gray-200: #E2E8F0;
  --gray-400: #94A3B8;
  --gray-500: #64748B;
  --gray-600: #475569;
  --star: #F59E0B;
  --shadow: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
  --shadow-xl: 0 20px 60px rgba(0,0,0,0.16);
  --radius: 16px;
  --radius-sm: 10px;
  --radius-xs: 6px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font: 'Plus Jakarta Sans', 'Noto Sans KR', sans-serif;
  --max-width: 1200px;
}

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

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
.section { padding: 100px 0; }

/* ===== Scroll Animations ===== */
.fade-up { opacity: 0; transform: translateY(40px); transition: opacity 0.7s ease, transform 0.7s ease; }
.fade-up.visible { opacity: 1; transform: translateY(0); }
.fade-left { opacity: 0; transform: translateX(-40px); transition: opacity 0.7s ease, transform 0.7s ease; }
.fade-left.visible { opacity: 1; transform: translateX(0); }
.fade-right { opacity: 0; transform: translateX(40px); transition: opacity 0.7s ease, transform 0.7s ease; }
.fade-right.visible { opacity: 1; transform: translateX(0); }
.scale-in { opacity: 0; transform: scale(0.92); transition: opacity 0.7s ease, transform 0.7s ease; }
.scale-in.visible { opacity: 1; transform: scale(1); }
.stagger-children .fade-up:nth-child(1) { transition-delay: 0s; }
.stagger-children .fade-up:nth-child(2) { transition-delay: 0.1s; }
.stagger-children .fade-up:nth-child(3) { transition-delay: 0.15s; }
.stagger-children .fade-up:nth-child(4) { transition-delay: 0.2s; }
.stagger-children .fade-up:nth-child(5) { transition-delay: 0.25s; }
.stagger-children .fade-up:nth-child(6) { transition-delay: 0.3s; }
.stagger-children .fade-up:nth-child(7) { transition-delay: 0.35s; }
.stagger-children .fade-up:nth-child(8) { transition-delay: 0.4s; }

/* ===== Navbar ===== */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: transparent; transition: var(--transition); padding: 0;
}
.navbar.scrolled { background: rgba(15,23,42,0.95); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); }
.nav-inner {
  max-width: var(--max-width); margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between; height: 72px;
}
.nav-logo { display: flex; align-items: center; gap: 10px; font-size: 1.4rem; font-weight: 800; color: white; }
.logo-icon {
  width: 40px; height: 40px; background: var(--primary); border-radius: 12px;
  display: flex; align-items: center; justify-content: center; color: white; font-size: 1.2rem; font-weight: 800;
}
.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-links a { padding: 8px 18px; border-radius: 100px; font-weight: 600; font-size: 0.92rem; color: rgba(255,255,255,0.75); transition: var(--transition); }
.nav-links a:hover, .nav-links a.active { color: white; background: rgba(255,255,255,0.1); }
.nav-cta { background: var(--primary) !important; color: white !important; padding: 10px 22px !important; margin-left: 8px !important; }
.nav-cta:hover { background: var(--primary-dark) !important; }
.nav-mobile-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 8px; }
.nav-mobile-toggle span { width: 22px; height: 2px; background: white; border-radius: 2px; transition: var(--transition); }

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 32px; border-radius: 100px; font-weight: 700; font-size: 0.95rem;
  cursor: pointer; transition: var(--transition); white-space: nowrap;
}
.btn-primary { background: var(--primary); color: white; box-shadow: 0 4px 16px rgba(234,88,12,0.35); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(234,88,12,0.45); }
.btn-secondary { background: white; color: var(--dark); border: 2px solid var(--gray-200); }
.btn-secondary:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); }
.btn-accent { background: var(--accent); color: white; box-shadow: 0 4px 16px rgba(22,163,74,0.3); }
.btn-accent:hover { background: #15803D; transform: translateY(-2px); }
.btn-ghost { background: transparent; color: white; border: 2px solid rgba(255,255,255,0.3); }
.btn-ghost:hover { border-color: white; background: rgba(255,255,255,0.1); }
.btn-white { background: white; color: var(--primary); font-weight: 800; box-shadow: var(--shadow-lg); }
.btn-white:hover { transform: translateY(-2px); box-shadow: var(--shadow-xl); }
.btn-lg { padding: 18px 40px; font-size: 1.05rem; }
.btn-sm { padding: 10px 20px; font-size: 0.88rem; }

/* ===== Section Headers ===== */
.section-header { text-align: center; max-width: 680px; margin: 0 auto 60px; }
.section-header h2 { font-size: clamp(1.6rem, 4vw, 2.4rem); font-weight: 800; margin-bottom: 14px; }
.section-header p { font-size: 1.05rem; color: var(--gray-500); line-height: 1.7; }
.badge { display: inline-flex; align-items: center; gap: 6px; padding: 6px 14px; border-radius: 100px; font-size: 0.82rem; font-weight: 700; margin-bottom: 14px; }
.badge-primary { background: rgba(234,88,12,0.1); color: var(--primary); }
.badge-accent { background: rgba(22,163,74,0.1); color: var(--accent); }
.badge-orange { background: #FFF7ED; color: var(--primary); }
.badge-white { background: rgba(255,255,255,0.15); color: white; }

/* ===== Hero - Fullscreen Visual ===== */
.hero {
  position: relative; min-height: 100vh; display: flex; align-items: center;
  overflow: hidden; background: var(--dark);
}
.hero-bg {
  position: absolute; inset: 0; z-index: 1;
}
.hero-bg img {
  width: 100%; height: 100%; object-fit: cover;
}
.hero-overlay {
  position: absolute; inset: 0; z-index: 2;
  background: linear-gradient(135deg, rgba(15,23,42,0.85) 0%, rgba(15,23,42,0.5) 50%, rgba(15,23,42,0.7) 100%);
}
.hero-content {
  position: relative; z-index: 3; max-width: 640px;
}
.hero-content h1 {
  font-size: clamp(2.4rem, 5.5vw, 3.8rem); font-weight: 800; color: white;
  line-height: 1.15; margin-bottom: 20px;
}
.hero-content h1 span { color: var(--primary-light); }
.hero-desc { font-size: 1.15rem; color: rgba(255,255,255,0.75); margin-bottom: 36px; max-width: 520px; line-height: 1.8; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 48px; }
.hero-stats { display: flex; gap: 40px; }
.hero-stat { display: flex; flex-direction: column; }
.hero-stat-num { font-size: 2rem; font-weight: 800; color: white; line-height: 1; margin-bottom: 4px; }
.hero-stat-label { font-size: 0.88rem; color: rgba(255,255,255,0.6); font-weight: 500; }

/* ===== Stats Section ===== */
.stats-section {
  padding: 60px 0; background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  position: relative;
}
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; text-align: center; }
.stat-card { color: white; }
.stat-number { font-size: 2.6rem; font-weight: 800; line-height: 1.1; margin-bottom: 4px; }
.stat-label { font-size: 0.95rem; opacity: 0.85; font-weight: 500; }

/* ===== Course Cards ===== */
.course-card {
  background: var(--white); border-radius: var(--radius); overflow: hidden;
  box-shadow: var(--shadow); transition: var(--transition); border: 1px solid var(--gray-100);
}
.course-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); }
.course-thumb { position: relative; height: 200px; overflow: hidden; }
.course-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.course-card:hover .course-thumb img { transform: scale(1.05); }
.course-badge { position: absolute; top: 12px; left: 12px; }
.course-body { padding: 20px; }
.course-category { font-size: 0.82rem; font-weight: 700; color: var(--primary); margin-bottom: 6px; }
.course-body h4 { font-size: 1.05rem; font-weight: 800; line-height: 1.4; margin-bottom: 10px; }
.course-instructor { display: flex; align-items: center; gap: 8px; margin-bottom: 12px; }
.instructor-avatar { width: 28px; height: 28px; border-radius: 50%; background: var(--gray-100); display: flex; align-items: center; justify-content: center; font-size: 0.75rem; overflow: hidden; }
.instructor-avatar img { width: 100%; height: 100%; object-fit: cover; }
.course-instructor span { font-size: 0.85rem; color: var(--gray-500); }
.course-meta { display: flex; align-items: center; justify-content: space-between; padding-top: 12px; border-top: 1px solid var(--gray-100); }
.course-rating { display: flex; align-items: center; gap: 4px; font-size: 0.85rem; font-weight: 700; color: var(--star); }
.course-students { font-size: 0.82rem; color: var(--gray-500); }
.course-progress { margin-top: 12px; }
.progress-bar { width: 100%; height: 6px; background: var(--gray-100); border-radius: 3px; overflow: hidden; }
.progress-fill { height: 100%; background: var(--primary); border-radius: 3px; transition: width 1s ease; }
.progress-text { font-size: 0.78rem; color: var(--gray-500); margin-top: 4px; text-align: right; }

/* ===== Feature Cards ===== */
.feature-card {
  background: var(--white); border-radius: var(--radius); border: 1px solid var(--gray-100);
  padding: 32px 24px; transition: var(--transition); position: relative; overflow: hidden;
}
.feature-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--primary-light)); opacity: 0; transition: var(--transition);
}
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.feature-card:hover::before { opacity: 1; }
.feature-icon {
  width: 52px; height: 52px; border-radius: 14px;
  display: flex; align-items: center; justify-content: center; font-size: 1.4rem; margin-bottom: 18px;
}
.feature-icon.orange { background: rgba(234,88,12,0.1); }
.feature-icon.green { background: rgba(22,163,74,0.1); }
.feature-icon.blue { background: rgba(37,99,235,0.1); }
.feature-icon.purple { background: rgba(147,51,234,0.1); }
.feature-icon.pink { background: rgba(236,72,153,0.1); }
.feature-icon.amber { background: rgba(245,158,11,0.1); }
.feature-card h4 { font-size: 1.05rem; font-weight: 800; margin-bottom: 8px; }
.feature-card p { font-size: 0.9rem; color: var(--gray-500); line-height: 1.6; }

/* ===== Testimonials ===== */
.testimonial-card {
  background: var(--white); border-radius: var(--radius); border: 1px solid var(--gray-100);
  padding: 32px; transition: var(--transition);
}
.testimonial-card:hover { box-shadow: var(--shadow); }
.testimonial-stars { margin-bottom: 16px; color: var(--star); font-size: 1rem; letter-spacing: 2px; }
.testimonial-quote { font-size: 1rem; line-height: 1.8; color: var(--dark); margin-bottom: 24px; }
.testimonial-author { display: flex; align-items: center; gap: 14px; }
.author-avatar { width: 48px; height: 48px; border-radius: 50%; object-fit: cover; background: var(--gray-100); }
.author-info strong { display: block; font-size: 0.95rem; font-weight: 700; }
.author-info span { font-size: 0.85rem; color: var(--gray-500); }

/* ===== Visual Section (Fullscreen Image + Text Overlay) ===== */
.visual-section {
  position: relative; min-height: 70vh; display: flex; align-items: center;
  overflow: hidden; background: var(--dark);
}
.visual-section .visual-bg {
  position: absolute; inset: 0; z-index: 1;
}
.visual-section .visual-bg img { width: 100%; height: 100%; object-fit: cover; }
.visual-section .visual-overlay {
  position: absolute; inset: 0; z-index: 2;
  background: linear-gradient(to right, rgba(15,23,42,0.9) 0%, rgba(15,23,42,0.4) 100%);
}
.visual-section .visual-content {
  position: relative; z-index: 3; max-width: 560px; color: white;
}
.visual-section .visual-content h2 { font-size: clamp(1.8rem, 4vw, 2.6rem); font-weight: 800; color: white; margin-bottom: 14px; }
.visual-section .visual-content p { font-size: 1.05rem; color: rgba(255,255,255,0.7); margin-bottom: 24px; line-height: 1.7; }
.visual-list { display: flex; flex-direction: column; gap: 14px; }
.visual-list li { display: flex; align-items: center; gap: 10px; font-size: 0.95rem; color: rgba(255,255,255,0.85); font-weight: 500; }
.visual-list li .check { color: var(--primary-light); font-weight: 800; font-size: 1.1rem; }

/* ===== Platform Preview ===== */
.platform-preview {
  border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-xl); border: 1px solid var(--gray-200);
}
.platform-preview img { width: 100%; height: auto; }
.platform-bar {
  display: flex; align-items: center; gap: 8px; padding: 14px 20px; background: var(--dark);
}
.platform-bar .dot { width: 12px; height: 12px; border-radius: 50%; }
.platform-bar .dot.red { background: #EF4444; }
.platform-bar .dot.yellow { background: #F59E0B; }
.platform-bar .dot.green { background: #22C55E; }
.platform-bar .url {
  flex: 1; margin-left: 12px; background: var(--dark-800); border-radius: 8px;
  padding: 6px 14px; font-size: 0.82rem; color: var(--gray-400);
}

/* ===== CTA Section ===== */
.cta-section {
  position: relative; padding: 100px 0; text-align: center; overflow: hidden; background: var(--dark);
}
.cta-section .cta-bg { position: absolute; inset: 0; z-index: 1; }
.cta-section .cta-bg img { width: 100%; height: 100%; object-fit: cover; opacity: 0.3; }
.cta-section .cta-overlay {
  position: absolute; inset: 0; z-index: 2;
  background: linear-gradient(135deg, rgba(234,88,12,0.9), rgba(194,65,12,0.95));
}
.cta-section .container { position: relative; z-index: 3; }
.cta-section h2 { font-size: clamp(1.8rem, 4vw, 2.6rem); font-weight: 800; color: white; margin-bottom: 14px; }
.cta-section p { font-size: 1.1rem; color: rgba(255,255,255,0.85); margin-bottom: 32px; max-width: 520px; margin-left: auto; margin-right: auto; }
.cta-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ===== Page Header ===== */
.page-header {
  position: relative; min-height: 50vh; display: flex; align-items: center; justify-content: center;
  overflow: hidden; background: var(--dark); text-align: center;
}
.page-header .header-bg { position: absolute; inset: 0; z-index: 1; }
.page-header .header-bg img { width: 100%; height: 100%; object-fit: cover; opacity: 0.25; }
.page-header .header-overlay { position: absolute; inset: 0; z-index: 2; background: rgba(15,23,42,0.7); }
.page-header .container { position: relative; z-index: 3; }
.page-header h1 { font-size: clamp(2rem, 4.5vw, 3rem); font-weight: 800; color: white; margin-bottom: 14px; }
.page-header p { font-size: 1.1rem; color: rgba(255,255,255,0.7); max-width: 520px; margin: 0 auto; }

/* ===== Detail Blocks ===== */
.detail-block {
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; padding: 60px 0;
}
.detail-block:nth-child(even) { direction: rtl; }
.detail-block:nth-child(even) > * { direction: ltr; }
.detail-img { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-lg); }
.detail-img img { width: 100%; height: 340px; object-fit: cover; }
.detail-content .badge { margin-bottom: 12px; }
.detail-content h3 { font-size: 1.7rem; font-weight: 800; margin-bottom: 14px; }
.detail-content p { font-size: 1rem; color: var(--gray-500); margin-bottom: 20px; line-height: 1.7; }
.detail-list { display: flex; flex-direction: column; gap: 8px; }
.detail-list li { display: flex; align-items: center; gap: 10px; font-size: 0.92rem; color: var(--gray-600); font-weight: 500; }
.detail-list li .check { color: var(--accent); font-weight: 800; font-size: 1.1rem; }

/* ===== Flow Steps ===== */
.flow-step { display: flex; gap: 28px; align-items: flex-start; margin-bottom: 40px; }
.step-number {
  width: 52px; height: 52px; min-width: 52px; border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: white; display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem; font-weight: 800;
}
.step-content h4 { font-size: 1.1rem; font-weight: 800; margin-bottom: 6px; }
.step-content p { font-size: 0.92rem; color: var(--gray-500); line-height: 1.7; }

/* ===== Pricing ===== */
.pricing-card {
  background: var(--white); border-radius: var(--radius); border: 2px solid var(--gray-100);
  padding: 40px 28px; text-align: center; transition: var(--transition); position: relative;
}
.pricing-card.popular { border-color: var(--primary); box-shadow: 0 0 0 1px var(--primary); }
.pricing-badge {
  position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
  background: var(--primary); color: white; padding: 6px 20px; border-radius: 100px;
  font-size: 0.82rem; font-weight: 800;
}
.pricing-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.pricing-card h3 { font-size: 1.2rem; font-weight: 800; margin-bottom: 8px; }
.pricing-desc { font-size: 0.88rem; color: var(--gray-500); margin-bottom: 20px; }
.pricing-price { font-size: 2.6rem; font-weight: 800; color: var(--dark); margin-bottom: 2px; }
.pricing-price span { font-size: 1rem; font-weight: 500; color: var(--gray-500); }
.pricing-period { font-size: 0.85rem; color: var(--gray-500); margin-bottom: 28px; }
.pricing-features { text-align: left; margin-bottom: 28px; display: flex; flex-direction: column; gap: 8px; }
.pricing-features li { display: flex; align-items: center; gap: 10px; padding: 4px 0; font-size: 0.92rem; color: var(--gray-600); }
.pricing-features li .check { color: var(--accent); font-weight: 800; }
.pricing-card .btn { width: 100%; }

/* ===== Contact / Form ===== */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.contact-form-box {
  background: var(--white); border-radius: var(--radius); padding: 36px; box-shadow: var(--shadow);
  border: 1px solid var(--gray-100);
}
.form-group { margin-bottom: 20px; }
.form-label { display: block; font-weight: 700; margin-bottom: 6px; font-size: 0.9rem; color: var(--dark); }
.form-input, .form-textarea, .form-select {
  width: 100%; padding: 13px 16px; border: 2px solid var(--gray-200); border-radius: var(--radius-sm);
  font-size: 0.92rem; color: var(--dark); background: var(--gray-50); transition: var(--transition);
}
.form-input:focus, .form-textarea:focus, .form-select:focus { border-color: var(--primary); box-shadow: 0 0 0 4px rgba(234,88,12,0.1); background: white; }
.form-textarea { resize: vertical; min-height: 110px; }
.form-select { cursor: pointer; appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%2394A3B8' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; background-size: 16px; padding-right: 40px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.contact-info-card {
  background: var(--gray-50); border-radius: var(--radius-sm); padding: 24px;
  display: flex; gap: 16px; align-items: flex-start; transition: var(--transition);
}
.contact-info-card:hover { box-shadow: var(--shadow); }
.info-icon {
  width: 44px; height: 44px; min-width: 44px; border-radius: 12px; background: rgba(234,88,12,0.1);
  display: flex; align-items: center; justify-content: center; font-size: 1.2rem;
}
.info-text h4 { font-size: 0.95rem; font-weight: 700; margin-bottom: 2px; }
.info-text p { font-size: 0.85rem; color: var(--gray-500); }

/* ===== FAQ ===== */
.faq-item {
  background: var(--white); border: 1px solid var(--gray-100); border-radius: var(--radius-sm);
  padding: 22px 24px; margin-bottom: 12px; transition: var(--transition);
}
.faq-item:hover { box-shadow: var(--shadow); }
.faq-item h4 { font-size: 1rem; font-weight: 700; cursor: pointer; margin-bottom: 0; }
.faq-item p { font-size: 0.92rem; color: var(--gray-500); line-height: 1.7; margin-top: 10px; }

/* ===== Trust Badges ===== */
.trust-box {
  background: var(--white); border-radius: var(--radius-sm); padding: 28px; border: 1px solid var(--gray-100);
}
.trust-box h4 { font-size: 1rem; font-weight: 700; margin-bottom: 16px; }
.trust-list { display: flex; flex-direction: column; gap: 10px; }
.trust-list li { display: flex; align-items: center; gap: 10px; font-size: 0.9rem; color: var(--gray-600); }
.trust-list li .check { color: var(--accent); font-weight: 800; }

/* ===== Footer ===== */
.footer { background: var(--dark); color: rgba(255,255,255,0.6); padding: 60px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 40px; }
.footer-brand .footer-logo { font-size: 1.3rem; font-weight: 800; color: white; margin-bottom: 12px; display: flex; align-items: center; gap: 8px; }
.footer-brand .logo-dot { width: 8px; height: 8px; background: var(--primary); border-radius: 50%; }
.footer-brand p { font-size: 0.9rem; max-width: 280px; line-height: 1.6; }
.footer-col h4 { color: white; font-size: 0.88rem; font-weight: 700; margin-bottom: 16px; text-transform: uppercase; letter-spacing: 1px; }
.footer-col a { display: block; font-size: 0.88rem; padding: 4px 0; }
.footer-col a:hover { color: var(--primary-light); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; font-size: 0.82rem; }
.footer-bottom a { color: var(--primary-light); font-weight: 700; }
.footer-bottom a:hover { color: white; }

/* ===== Grids ===== */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .detail-block { grid-template-columns: 1fr; gap: 32px; }
  .detail-block:nth-child(even) { direction: ltr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .section { padding: 60px 0; }
  .nav-links { display: none; position: fixed; top: 72px; left: 0; right: 0; background: var(--dark); flex-direction: column; padding: 24px; box-shadow: var(--shadow-lg); }
  .nav-links.open { display: flex; }
  .nav-mobile-toggle { display: flex; }
  .hero { min-height: 90vh; }
  .hero-stats { gap: 24px; flex-wrap: wrap; }
  .hero-stat-num { font-size: 1.6rem; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .stat-number { font-size: 2rem; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 10px; text-align: center; }
  .pricing-card.popular { transform: none; }
  .form-row { grid-template-columns: 1fr; }
  .visual-section { min-height: 60vh; }
  .page-header { min-height: 40vh; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }
}

.text-center { text-align: center; }
.mt-48 { margin-top: 48px; }