/* ============================================
   SMC Training — Design System
   smc-training.com
   ============================================ */

/* ── CSS Custom Properties ── */
:root {
  /* Backgrounds */
  --bg-deep: #0a0e1a;
  --bg-primary: #0f172a;
  --bg-surface: #1e293b;
  --bg-surface-hover: #273549;
  --bg-elevated: #162032;

  /* Text */
  --text-primary: #f1f5f9;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  /* Accent — Sky Blue */
  --accent: #38bdf8;
  --accent-hover: #7dd3fc;
  --accent-muted: rgba(56, 189, 248, 0.15);
  --accent-soft: rgba(56, 189, 248, 0.08);

  /* Semantic Colors */
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #3b82f6;

  /* Category Accents */
  --cat-pneumatic: #38bdf8;
  --cat-plc: #8b5cf6;
  --cat-mechatronic: #34d399;
  --cat-industry40: #f59e0b;
  --cat-robot: #ec4899;
  --cat-iot: #22d3ee;

  /* Borders */
  --border: rgba(148, 163, 184, 0.12);
  --border-hover: rgba(148, 163, 184, 0.25);
  --border-active: rgba(56, 189, 248, 0.4);

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  --space-4xl: 96px;

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 20px rgba(56, 189, 248, 0.15);

  /* Typography */
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --duration-fast: 150ms;
  --duration-base: 300ms;
  --duration-slow: 500ms;

  /* Nav height */
  --nav-height: 72px;
}

/* ── Reset & Base ── */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-color: var(--bg-deep);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.6;
  overflow-x: hidden;
}

::selection {
  background: rgba(56, 189, 248, 0.3);
  color: var(--text-primary);
}

/* ── Typography ── */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.8rem); }
h4 { font-size: 1.25rem; }

p { color: var(--text-secondary); }

a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-out);
}
a:hover { color: var(--accent-hover); }

/* ── Utility Classes ── */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.section {
  padding: var(--space-4xl) 0;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: var(--space-md);
}

.section-label::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px rgba(56, 189, 248, 0.5);
}

.section-title {
  margin-bottom: var(--space-md);
  color: var(--text-primary);
}

.section-desc {
  color: var(--text-muted);
  font-size: 1.1rem;
  max-width: 640px;
  margin-bottom: var(--space-2xl);
}

.accent-text {
  background: linear-gradient(135deg, var(--accent), #818cf8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Navigation ── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  transition: background var(--duration-base) var(--ease-out),
              box-shadow var(--duration-base) var(--ease-out);
}

.nav.scrolled {
  background: rgba(10, 14, 26, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-md);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--text-primary);
  text-decoration: none;
}

.nav-logo img {
  height: 36px;
  width: auto;
}

.nav-logo span {
  background: linear-gradient(135deg, var(--accent), #818cf8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  list-style: none;
}

.nav-links a {
  color: var(--text-muted);
  font-size: 0.875rem;
  font-weight: 500;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  transition: color var(--duration-fast), background var(--duration-fast);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.nav-links a.active {
  color: var(--accent);
}

.nav-cta {
  background: var(--accent) !important;
  color: var(--bg-deep) !important;
  font-weight: 600 !important;
  padding: var(--space-sm) var(--space-lg) !important;
  border-radius: var(--radius-md);
  transition: background var(--duration-fast), transform var(--duration-fast);
}

.nav-cta:hover {
  background: var(--accent-hover) !important;
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform var(--duration-base), opacity var(--duration-base);
}

.nav-toggle.open span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.open span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ── Hero Section ── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-height);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(56, 189, 248, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(56, 189, 248, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, black 20%, transparent 70%);
}

.hero-glow {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.12;
}

.hero-glow.top {
  top: -200px;
  right: -100px;
  background: var(--accent);
}

.hero-glow.bottom {
  bottom: -200px;
  left: -100px;
  background: #818cf8;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 720px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-xs) var(--space-md);
  background: var(--accent-muted);
  border: 1px solid var(--border-active);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--accent);
  margin-bottom: var(--space-lg);
}

.hero-badge .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero h1 {
  margin-bottom: var(--space-lg);
  line-height: 1.1;
}

.hero p {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-bottom: var(--space-xl);
  max-width: 560px;
}

.hero-actions {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 12px 28px;
  font-size: 0.95rem;
  font-weight: 600;
  font-family: var(--font-sans);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
  text-decoration: none;
}

.btn-primary {
  background: var(--accent);
  color: var(--bg-deep);
  box-shadow: 0 0 20px rgba(56, 189, 248, 0.2);
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(56, 189, 248, 0.35);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-hover);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid transparent;
}

.btn-ghost:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

/* ── Cards ── */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: border-color var(--duration-base), box-shadow var(--duration-base),
              transform var(--duration-base);
}

.card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

.card-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
  font-size: 1.4rem;
}

.card-icon.blue { background: rgba(56, 189, 248, 0.12); color: var(--accent); }
.card-icon.purple { background: rgba(139, 92, 246, 0.12); color: #a78bfa; }
.card-icon.green { background: rgba(52, 211, 153, 0.12); color: var(--success); }
.card-icon.amber { background: rgba(245, 158, 11, 0.12); color: var(--warning); }
.card-icon.rose { background: rgba(236, 72, 153, 0.12); color: #f472b6; }
.card-icon.cyan { background: rgba(34, 211, 238, 0.12); color: #22d3ee; }

.card h3 {
  margin-bottom: var(--space-sm);
  font-size: 1.15rem;
}

.card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 0;
}

/* ── Grid Layouts ── */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}

/* ── Stats ── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}

.stat-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  text-align: center;
}

.stat-value {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  margin-bottom: var(--space-xs);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* ── Course Cards ── */
.course-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--duration-base), box-shadow var(--duration-base),
              transform var(--duration-base);
}

.course-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-glow);
  transform: translateY(-3px);
}

.course-card-img {
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.course-card-img.pneumatic { background: linear-gradient(135deg, #064e5e, #0a2a3a); }
.course-card-img.plc { background: linear-gradient(135deg, #3b0764, #1a1040); }
.course-card-img.mechatronic { background: linear-gradient(135deg, #064e3b, #0a2a2a); }
.course-card-img.industry40 { background: linear-gradient(135deg, #5c3d02, #2a1a0a); }
.course-card-img.robot { background: linear-gradient(135deg, #5c0a3a, #2a1020); }
.course-card-img.iot { background: linear-gradient(135deg, #0a3a4e, #0a2a3a); }

.course-card-img .icon {
  font-size: 4rem;
  opacity: 0.2;
  position: absolute;
  right: -10px;
  bottom: -10px;
}

.course-level {
  position: absolute;
  top: var(--space-md);
  left: var(--space-md);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.course-level.basic { background: rgba(56, 189, 248, 0.2); color: var(--accent); }
.course-level.advanced { background: rgba(245, 158, 11, 0.2); color: var(--warning); }
.course-level.expert { background: rgba(139, 92, 246, 0.2); color: #a78bfa; }

.course-card-body {
  padding: var(--space-lg);
}

.course-card-body h3 {
  font-size: 1.1rem;
  margin-bottom: var(--space-sm);
}

.course-card-body p {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: var(--space-md);
}

.course-meta {
  display: flex;
  gap: var(--space-md);
  font-size: 0.8rem;
  color: var(--text-dim);
}

.course-meta span {
  display: flex;
  align-items: center;
  gap: 4px;
}

/* ── Page Header ── */
.page-header {
  padding: calc(var(--nav-height) + var(--space-4xl)) 0 var(--space-3xl);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(56, 189, 248, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(56, 189, 248, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 50% 50% at 50% 40%, black 20%, transparent 70%);
}

.page-header h1 {
  position: relative;
}

.page-header p {
  position: relative;
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 560px;
  margin: var(--space-md) auto 0;
}

/* ── Equipment Cards ── */
.equipment-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  display: flex;
  gap: var(--space-lg);
  align-items: flex-start;
  transition: border-color var(--duration-base), box-shadow var(--duration-base);
}

.equipment-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-glow);
}

.equipment-icon {
  font-size: 2.5rem;
  flex-shrink: 0;
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: var(--accent-muted);
}

.equipment-info h3 {
  font-size: 1.1rem;
  margin-bottom: var(--space-xs);
}

.equipment-info p {
  font-size: 0.88rem;
  color: var(--text-muted);
}

/* ── Project / Partner Cards ── */
.project-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--duration-base), box-shadow var(--duration-base),
              transform var(--duration-base);
}

.project-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

.project-card-img {
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-elevated);
  font-size: 2.5rem;
  color: var(--text-dim);
}

.project-card-body {
  padding: var(--space-lg);
}

.project-card-body h3 {
  font-size: 1.05rem;
  margin-bottom: var(--space-xs);
}

.project-card-body p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.project-card-body .year {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
  margin-top: var(--space-sm);
  font-family: var(--font-mono);
}

/* ── News Cards ── */
.news-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: border-color var(--duration-base), box-shadow var(--duration-base);
}

.news-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-glow);
}

.news-date {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  margin-bottom: var(--space-sm);
}

.news-card h3 {
  font-size: 1.1rem;
  margin-bottom: var(--space-sm);
}

.news-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: var(--space-md);
}

.news-tag {
  display: inline-block;
  padding: 2px 10px;
  border-radius: var(--radius-full);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.news-tag.event { background: rgba(56, 189, 248, 0.15); color: var(--accent); }
.news-tag.news { background: rgba(139, 92, 246, 0.15); color: #a78bfa; }
.news-tag.partnership { background: rgba(52, 211, 153, 0.15); color: var(--success); }

/* ── Contact Section ── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
}

.contact-info h2 {
  margin-bottom: var(--space-md);
}

.contact-info p {
  color: var(--text-muted);
  margin-bottom: var(--space-xl);
}

.contact-item {
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
  margin-bottom: var(--space-lg);
}

.contact-item-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: var(--accent-muted);
  color: var(--accent);
  font-size: 1.1rem;
  flex-shrink: 0;
}

.contact-item-text h4 {
  font-size: 0.95rem;
  margin-bottom: 2px;
}

.contact-item-text span {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.contact-form {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
}

.form-group {
  margin-bottom: var(--space-md);
}

.form-group label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-xs);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-primary);
  border: 1px solid var(--border-hover);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.9rem;
  font-family: var(--font-sans);
  outline: none;
  transition: border-color var(--duration-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.12);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

/* ── Footer ── */
.footer {
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  padding: var(--space-3xl) 0 var(--space-xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

.footer-brand h3 {
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

.footer-brand p {
  font-size: 0.88rem;
  color: var(--text-muted);
  max-width: 300px;
}

.footer-col h4 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: var(--space-md);
}

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

.footer-col ul li {
  margin-bottom: var(--space-sm);
}

.footer-col ul li a {
  font-size: 0.88rem;
  color: var(--text-dim);
  transition: color var(--duration-fast);
}

.footer-col ul li a:hover {
  color: var(--accent);
}

.footer-bottom {
  padding-top: var(--space-lg);
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.footer-bottom p {
  font-size: 0.8rem;
  color: var(--text-dim);
}

/* ── Tag / Badge ── */
.tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.tag-blue { background: rgba(56, 189, 248, 0.15); color: var(--accent); }
.tag-purple { background: rgba(139, 92, 246, 0.15); color: #a78bfa; }
.tag-green { background: rgba(52, 211, 153, 0.15); color: var(--success); }
.tag-amber { background: rgba(245, 158, 11, 0.15); color: var(--warning); }
.tag-rose { background: rgba(236, 72, 153, 0.15); color: #f472b6; }

/* ── eLearning Feature List ── */
.feature-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

.feature-item {
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
}

.feature-item-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: var(--accent-muted);
  color: var(--accent);
  font-size: 1rem;
  flex-shrink: 0;
}

.feature-item-text h4 {
  font-size: 0.95rem;
  margin-bottom: 2px;
}

.feature-item-text p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ── Animations ── */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in {
  opacity: 0;
  transition: opacity 0.6s var(--ease-out);
}

.fade-in.visible {
  opacity: 1;
}

/* ── Table (for pricing/schedule) ── */
.table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-surface);
}

thead th {
  text-align: left;
  padding: 14px 20px;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-bottom: 1px solid var(--border);
  background: var(--bg-elevated);
}

tbody td {
  padding: 14px 20px;
  font-size: 0.88rem;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
}

tbody tr:hover td {
  background: var(--accent-soft);
}

/* ── Toast ── */
.toast {
  position: fixed;
  top: calc(var(--nav-height) + var(--space-md));
  right: var(--space-lg);
  z-index: 9999;
  padding: 14px 24px;
  border-radius: var(--radius-md);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-primary);
  animation: slideInRight 0.3s var(--ease-out);
}

.toast.success { border-color: rgba(16, 185, 129, 0.3); }
.toast.error { border-color: rgba(239, 68, 68, 0.3); }

@keyframes slideInRight {
  from { transform: translateX(100px); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* ── Breadcrumb ── */
.breadcrumb {
  display: flex;
  gap: var(--space-sm);
  align-items: center;
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-bottom: var(--space-lg);
}

.breadcrumb a {
  color: var(--text-muted);
}

.breadcrumb a:hover {
  color: var(--accent);
}

.breadcrumb .sep {
  color: var(--text-dim);
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .feature-list { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  :root {
    --nav-height: 64px;
    --space-4xl: 64px;
    --space-3xl: 48px;
  }

  .nav-links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 14, 26, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    padding: var(--space-xl);
    gap: var(--space-sm);
    transform: translateX(100%);
    transition: transform 0.3s var(--ease-in-out);
  }

  .nav-links.open {
    transform: translateX(0);
  }

  .nav-toggle {
    display: flex;
  }

  .grid-3, .grid-2, .grid-4 {
    grid-template-columns: 1fr;
  }

  .hero p {
    font-size: 1rem;
  }

  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .btn {
    justify-content: center;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
  }

  .stat-value {
    font-size: 1.7rem;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .course-card-img {
    height: 160px;
  }

  .section {
    padding: var(--space-3xl) 0;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--space-md);
  }

  .stats-grid {
    grid-template-columns: 1fr 1fr;
  }

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

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}