/* ===========================================
   Dollars & Dilemmas — Modern Educational Theme
   =========================================== */

/* --- Design Tokens --- */
:root {
  --color-bg: #ffffff;
  --color-bg-alt: #f7f9fc;
  --color-bg-warm: #f0fdf9;
  --color-surface: #ffffff;
  --color-text: #1e293b;
  --color-text-secondary: #475569;
  --color-text-muted: #94a3b8;
  --color-accent: #1e40af;
  --color-accent-dark: #1e3a8a;
  --color-accent-light: #dbeafe;
  --color-accent-soft: rgba(30, 64, 175, 0.08);
  --color-navy: #0f172a;
  --color-navy-light: #1e293b;
  --color-border: #e2e8f0;
  --color-border-light: #f1f5f9;
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.04), 0 1px 2px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 4px 16px rgba(15, 23, 42, 0.06), 0 1px 3px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 12px 40px rgba(15, 23, 42, 0.08), 0 4px 12px rgba(15, 23, 42, 0.04);
  --shadow-xl: 0 24px 64px rgba(15, 23, 42, 0.1), 0 8px 20px rgba(15, 23, 42, 0.05);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-pill: 999px;
  --nav-height: 72px;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: 200ms var(--ease-out);
  --transition-med: 350ms var(--ease-out);
  --transition-slow: 600ms var(--ease-out);
  --font-heading: "Plus Jakarta Sans", "Inter", system-ui, -apple-system, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-navy);
}

/* --- Layout --- */
.container {
  width: min(1140px, 100% - 2.5rem);
  margin-inline: auto;
}

.section {
  padding: 6rem 0;
}

.section-alt {
  background: var(--color-bg-alt);
}

.section-warm {
  background: var(--color-bg-warm);
}

.section-header {
  text-align: center;
  max-width: 620px;
  margin: 0 auto 3.5rem;
}

.section-header h2 {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  margin-bottom: 0.75rem;
  letter-spacing: -0.02em;
}

.section-header p {
  color: var(--color-text-secondary);
  font-size: 1.05rem;
  line-height: 1.7;
}

/* --- Header / Nav --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid transparent;
  transition: background var(--transition-med),
              border-color var(--transition-med),
              box-shadow var(--transition-med);
}

.site-header.scrolled {
  background: rgba(255, 255, 255, 0.97);
  border-bottom-color: var(--color-border);
  box-shadow: 0 1px 12px rgba(15, 23, 42, 0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-height);
}

/* Logo */
.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
}

.logo-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
  color: #fff;
  font-weight: 800;
  font-size: 1.1rem;
  font-family: var(--font-heading);
  box-shadow: 0 2px 8px rgba(30, 64, 175, 0.3);
}

.logo-icon-img {
  width: 36px;
  height: 36px;
  object-fit: contain;
}

.logo-text {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  color: var(--color-navy);
}

/* Nav links */
.main-nav {
  display: flex;
  align-items: center;
}

.nav-list {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-list a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius-sm);
  position: relative;
  transition: color var(--transition-fast), background var(--transition-fast);
}

.nav-list a:hover {
  color: var(--color-navy);
  background: var(--color-accent-soft);
}

/* Sign Up / Enroll CTA button in nav */
.btn-enroll {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: var(--color-accent);
  color: #fff !important;
  font-weight: 600;
  font-size: 0.88rem;
  padding: 0.5rem 1.15rem;
  border-radius: var(--radius-pill);
  margin-left: 0.5rem;
  box-shadow: 0 2px 8px rgba(30, 64, 175, 0.25);
  transition: background var(--transition-fast),
              transform 150ms ease,
              box-shadow var(--transition-fast);
}

.btn-enroll:hover {
  background: var(--color-accent-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(30, 64, 175, 0.35);
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  padding: 0;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.nav-toggle:hover {
  background: var(--color-bg-alt);
}

.nav-toggle-bar {
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: var(--color-navy);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.nav-toggle.open .nav-toggle-bar:nth-child(1) {
  transform: translateY(3.5px) rotate(45deg);
}

.nav-toggle.open .nav-toggle-bar:nth-child(2) {
  transform: translateY(-3.5px) rotate(-45deg);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  border: none;
  border-radius: var(--radius-pill);
  padding: 0.75rem 1.65rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
  box-shadow: 0 4px 16px rgba(30, 64, 175, 0.3);
}

.btn-primary:hover {
  background: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(30, 64, 175, 0.35);
}

.btn-outline {
  background: transparent;
  color: var(--color-accent-dark);
  border: 1.5px solid var(--color-accent);
  padding: 0.7rem 1.6rem;
}

.btn-outline:hover {
  background: var(--color-accent-soft);
  transform: translateY(-1px);
}

.btn-lg {
  padding: 0.9rem 2rem;
  font-size: 1rem;
}

.btn-white {
  background: #fff;
  color: var(--color-accent-dark);
  box-shadow: 0 4px 16px rgba(15, 23, 42, 0.1);
}

.btn-white:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(15, 23, 42, 0.15);
}

/* --- Hero Section --- */
.hero {
  position: relative;
  padding: 5rem 0 4rem;
  overflow: hidden;
  background: linear-gradient(165deg, #f0fdfa 0%, #ffffff 40%, #f8fafc 100%);
}

.hero::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -20%;
  width: 700px;
  height: 700px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(30, 64, 175, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero::after {
  content: "";
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(30, 64, 175, 0.04) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 4rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-text {
  max-width: 540px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  background: var(--color-accent-light);
  padding: 0.3rem 0.85rem;
  border-radius: var(--radius-pill);
  margin-bottom: 1.25rem;
}

.hero h1 {
  font-size: clamp(2.2rem, 4.5vw, 3.2rem);
  line-height: 1.1;
  letter-spacing: -0.025em;
  margin-bottom: 1.25rem;
  color: var(--color-navy);
}

.hero h1 .highlight {
  color: var(--color-accent);
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  line-height: 1.75;
  max-width: 28rem;
}

.hero-actions {
  margin-top: 2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

/* Hero visual / cards */
.hero-visual {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.hero-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem 1.75rem;
  box-shadow: var(--shadow-lg);
  transition: transform var(--transition-med), box-shadow var(--transition-med);
}

.hero-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.hero-card-main {
  position: relative;
  overflow: hidden;
}

.hero-card-main::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-accent), #3b82f6, #60a5fa);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.hero-card-main h2 {
  font-size: 1.1rem;
  margin-bottom: 0.4rem;
  color: var(--color-navy);
}

.hero-card-main p {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
}

.hero-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.stat-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.15rem 1.25rem;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-med), box-shadow var(--transition-med);
}

.stat-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 0.25rem;
}

.stat-label {
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
}

/* --- Curriculum Section (Grid Cards) --- */
.curriculum-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.curriculum-card {
  position: relative;
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem 1.75rem 1.75rem;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-med),
              box-shadow var(--transition-med),
              border-color var(--transition-med);
  overflow: hidden;
  cursor: pointer;
}

.curriculum-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent);
}

.curriculum-card.expanded {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-md);
}

/* Card header: icon + title inline */
.card-header {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 0.65rem;
}

/* Card number */
.card-number {
  flex-shrink: 0;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--color-accent);
}

/* Card title */
.curriculum-card h3 {
  font-size: 1.02rem;
  letter-spacing: -0.01em;
  margin: 0;
}

/* Brief description (always visible) */
.card-brief {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  line-height: 1.65;
  margin-bottom: 0.5rem;
}

/* Click hint */
.card-hint {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-accent);
  transition: opacity var(--transition-fast);
}

.card-hint .hint-arrow {
  display: inline-block;
  transition: transform var(--transition-med);
  font-size: 0.9rem;
  line-height: 1;
}

.curriculum-card.expanded .card-hint {
  opacity: 0.6;
}

.curriculum-card.expanded .card-hint .hint-arrow {
  transform: rotate(90deg);
}

/* Expandable content */
.card-expand {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s var(--ease-out);
}

.curriculum-card.expanded .card-expand {
  max-height: 300px;
}

.card-expand .curriculum-points {
  list-style: none;
  font-size: 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding-top: 0.85rem;
  margin-top: 0.85rem;
  border-top: 1px solid var(--color-border-light);
}

.card-expand .curriculum-points li {
  display: flex;
  align-items: flex-start;
  gap: 0.45rem;
  color: var(--color-text-secondary);
}

.card-expand .curriculum-points li::before {
  content: "";
  flex-shrink: 0;
  width: 6px;
  height: 6px;
  margin-top: 0.5em;
  border-radius: 50%;
  background: var(--color-accent);
}

/* --- Testimonials --- */
.testimonial-carousel {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
  position: relative;
}

.testimonial-card {
  display: none;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 2.5rem 2.5rem 2rem;
  box-shadow: var(--shadow-md);
  animation: fadeSlideIn 0.5s var(--ease-out);
}

.testimonial-card.active {
  display: block;
}

@keyframes fadeSlideIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.testimonial-quote-mark {
  font-size: 3rem;
  line-height: 1;
  color: var(--color-accent-light);
  font-family: Georgia, serif;
  margin-bottom: 0.5rem;
}

.testimonial-quote {
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--color-text);
  font-style: italic;
  margin-bottom: 1.5rem;
}

.testimonial-name {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--color-navy);
}

.testimonial-role {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: 0.15rem;
}

.testimonial-controls {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 1.5rem;
}

.testimonial-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  border: none;
  background: var(--color-border);
  padding: 0;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.testimonial-dot.active {
  width: 28px;
  background: var(--color-accent);
}

.testimonial-dot:hover {
  background: var(--color-accent-light);
}

.testimonial-dot.active:hover {
  background: var(--color-accent);
}

/* --- CTA Section --- */
.cta-section {
  background: linear-gradient(135deg, var(--color-navy) 0%, #0c4a6e 50%, var(--color-accent-dark) 100%);
  padding: 5rem 0;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -10%;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,0.04) 0%, transparent 70%);
  pointer-events: none;
}

.cta-inner {
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.cta-inner h2 {
  color: #fff;
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.cta-inner p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: 2rem;
}

/* --- Footer --- */
.site-footer {
  background: var(--color-navy);
  color: rgba(255, 255, 255, 0.7);
  padding: 2.5rem 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.85rem;
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.6);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: #fff;
}

/* --- Page Hero (About, Contact) --- */
.page-hero {
  padding: 5rem 0 3rem;
  background: linear-gradient(165deg, #f0fdfa 0%, #ffffff 50%, #f8fafc 100%);
  position: relative;
}

.page-hero .container {
  position: relative;
  z-index: 1;
}

.page-hero .eyebrow {
  margin-bottom: 1rem;
}

.page-hero h1 {
  font-size: clamp(2rem, 3.5vw, 2.6rem);
  letter-spacing: -0.025em;
  margin-bottom: 1rem;
}

.page-hero p.lead {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  max-width: 540px;
  line-height: 1.75;
}

/* --- About Page --- */
.about-content {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 3.5rem;
  align-items: start;
}

.about-photo {
  position: sticky;
  top: calc(var(--nav-height) + 2rem);
}

.about-photo-placeholder {
  width: 100%;
  aspect-ratio: 3 / 4;
  border-radius: var(--radius-xl);
  background: linear-gradient(145deg, var(--color-accent-light), #bfdbfe);
  border: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  box-shadow: var(--shadow-lg);
}

.about-photo-placeholder .placeholder-icon {
  font-size: 2.5rem;
  opacity: 0.5;
}

.about-photo-img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
}

.about-body h2 {
  font-size: 1.4rem;
  margin-bottom: 1rem;
  letter-spacing: -0.015em;
}

.about-body p {
  color: var(--color-text-secondary);
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 1.25rem;
}

.about-body p:last-of-type {
  margin-bottom: 0;
}

.about-cta {
  margin-top: 2rem;
  padding: 1.5rem 1.75rem;
  background: var(--color-accent-soft);
  border: 1px solid rgba(30, 64, 175, 0.15);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.about-cta p {
  flex: 1;
  min-width: 200px;
  margin: 0;
  font-size: 0.95rem;
  color: var(--color-text-secondary);
}

/* --- Contact Page --- */
.contact-layout {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 3.5rem;
  align-items: start;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.field label {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-text);
}

.field input,
.field textarea {
  font-family: var(--font-body);
  font-size: 0.95rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  padding: 0.75rem 1rem;
  color: var(--color-text);
  outline: none;
  transition: border-color var(--transition-fast),
              box-shadow var(--transition-fast),
              background var(--transition-fast);
}

.field textarea {
  min-height: 140px;
  resize: vertical;
  border-radius: var(--radius-md);
}

.field input:focus,
.field textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.1);
  background: #fff;
}

.field input::placeholder,
.field textarea::placeholder {
  color: var(--color-text-muted);
}

.field-error {
  border-color: #ef4444 !important;
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1) !important;
}

.error-text {
  font-size: 0.8rem;
  color: #ef4444;
  margin-top: 0.15rem;
}

.form-success {
  padding: 1.25rem 1.5rem;
  background: var(--color-accent-light);
  border: 1px solid rgba(30, 64, 175, 0.2);
  border-radius: var(--radius-md);
  color: var(--color-accent-dark);
  font-weight: 500;
  font-size: 0.95rem;
  display: none;
}

.form-success.visible {
  display: block;
  animation: fadeSlideIn 0.5s var(--ease-out);
}

.contact-info {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 2rem 2rem;
}

.contact-info h3 {
  font-size: 1.15rem;
  margin-bottom: 1.25rem;
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.contact-info-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--color-accent-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent-dark);
  font-size: 1rem;
  flex-shrink: 0;
}

.contact-info-text p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--color-text-secondary);
}

.contact-info-text strong {
  color: var(--color-text);
  font-weight: 600;
}

.contact-divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 1rem 0 1.25rem;
}

.contact-info-note {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* --- Scroll Animations --- */
[data-animate] {
  opacity: 0;
  transition: opacity 700ms var(--ease-out), transform 700ms var(--ease-out);
}

[data-animate="fade-up"] {
  transform: translateY(30px);
}

[data-animate="fade-left"] {
  transform: translateX(30px);
}

[data-animate="fade-right"] {
  transform: translateX(-30px);
}

[data-animate="fade-in"] {
  transform: none;
}

[data-animate].in-view {
  opacity: 1;
  transform: translateY(0) translateX(0);
}

/* Staggered children */
[data-stagger] > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 500ms var(--ease-out), transform 500ms var(--ease-out);
}

[data-stagger].in-view > *:nth-child(1) { transition-delay: 0ms; opacity: 1; transform: none; }
[data-stagger].in-view > *:nth-child(2) { transition-delay: 80ms; opacity: 1; transform: none; }
[data-stagger].in-view > *:nth-child(3) { transition-delay: 160ms; opacity: 1; transform: none; }
[data-stagger].in-view > *:nth-child(4) { transition-delay: 240ms; opacity: 1; transform: none; }
[data-stagger].in-view > *:nth-child(5) { transition-delay: 320ms; opacity: 1; transform: none; }
[data-stagger].in-view > *:nth-child(6) { transition-delay: 400ms; opacity: 1; transform: none; }

/* --- Responsive --- */
@media (max-width: 960px) {
  .hero-content {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .hero-visual {
    order: -1;
  }

  .hero-text {
    max-width: 100%;
  }

  .curriculum-accordion {
    max-width: 100%;
  }

  .about-content {
    grid-template-columns: 1fr;
  }

  .about-photo {
    position: static;
    max-width: 320px;
    margin: 0 auto;
  }

  .contact-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: inline-flex;
  }

  .nav-list {
    position: absolute;
    top: calc(var(--nav-height) + 0.5rem);
    left: 1rem;
    right: 1rem;
    flex-direction: column;
    align-items: stretch;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 0.5rem;
    box-shadow: var(--shadow-xl);
    transform-origin: top center;
    transform: scaleY(0.95) translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-med), transform var(--transition-med);
  }

  .nav-list.open {
    opacity: 1;
    transform: scaleY(1) translateY(0);
    pointer-events: auto;
  }

  .nav-list a {
    display: block;
    padding: 0.7rem 0.85rem;
    border-radius: var(--radius-sm);
  }

  .btn-enroll {
    margin-left: 0;
    text-align: center;
    justify-content: center;
  }

  .section {
    padding: 4rem 0;
  }

  .hero {
    padding: 3.5rem 0 3rem;
  }

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

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

  .testimonial-card {
    padding: 2rem 1.5rem 1.5rem;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }
}

@media (max-width: 480px) {
  .container {
    width: min(100% - 1.5rem, 480px);
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero h1 {
    font-size: 1.9rem;
  }

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