/* ============================
   ERUDITO — GLOBAL STYLES
   ============================ */

:root {
  --bg: #0a0a0f;
  --bg-2: #0f0f18;
  --bg-3: #141420;
  --gold: #c9a84c;
  --gold-light: #e8c97a;
  --gold-dim: rgba(201, 168, 76, 0.15);
  --white: #f0ede6;
  --white-dim: rgba(240, 237, 230, 0.55);
  --white-faint: rgba(240, 237, 230, 0.1);
  --border: rgba(201, 168, 76, 0.2);
  --border-dim: rgba(255, 255, 255, 0.08);
  --font-serif: 'Cormorant Garamond', Georgia, serif;
  --font-sans: 'Outfit', sans-serif;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 24px 64px rgba(0, 0, 0, 0.5);
  --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

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

img { display: block; max-width: 100%; }
a { text-decoration: none; color: inherit; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
}

/* ============================
   TYPOGRAPHY
   ============================ */

.section-label {
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 16px;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 600;
  line-height: 1.15;
  color: var(--white);
}

.section-title em {
  font-style: italic;
  color: var(--gold);
}

/* ============================
   BUTTONS
   ============================ */

.btn-gold {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--gold);
  color: #0a0a0f;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 14px;
  padding: 10px 22px;
  border-radius: 8px;
  transition: var(--transition);
  border: none;
  cursor: pointer;
}
.btn-gold:hover {
  background: var(--gold-light);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(201, 168, 76, 0.35);
}
.btn-gold.btn-lg { padding: 14px 32px; font-size: 15px; border-radius: 10px; }

.btn-ghost {
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 500;
  color: var(--white-dim);
  padding: 10px 16px;
  transition: color var(--transition);
}
.btn-ghost:hover { color: var(--white); }

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--white-dim);
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 15px;
  padding: 13px 28px;
  border-radius: 10px;
  border: 1px solid var(--border-dim);
  transition: var(--transition);
  cursor: pointer;
}
.btn-outline:hover {
  color: var(--gold);
  border-color: var(--gold);
  background: var(--gold-dim);
}

/* ============================
   REVEAL ANIMATIONS
   ============================ */

.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s cubic-bezier(0.4,0,0.2,1), transform 0.7s cubic-bezier(0.4,0,0.2,1);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================
   NAVBAR
   ============================ */

.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  transition: background var(--transition), box-shadow var(--transition);
}
.navbar.scrolled {
  background: rgba(10, 10, 15, 0.92);
  backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 var(--border-dim);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 5px 32px;
  display: flex;
  align-items: center;
  gap: 40px;
}

.logo {
  font-family: var(--font-serif);
  font-size: 40px;
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.01em;
  flex-shrink: 0;
}
.logo-e {
  color: var(--gold);
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 8px;
  flex: 1;
}
.nav-links a {
  font-size: 14px;
  font-weight: 400;
  color: var(--white-dim);
  padding: 6px 12px;
  border-radius: 6px;
  transition: color var(--transition), background var(--transition);
}
.nav-links a:hover { color: var(--white); background: var(--white-faint); }

.nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  margin-left: auto;
}
.burger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--transition);
}

.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 16px 32px 24px;
  background: rgba(10,10,15,0.98);
  backdrop-filter: blur(16px);
}
.mobile-menu a {
  font-size: 15px;
  color: var(--white-dim);
  padding: 10px 0;
  border-bottom: 1px solid var(--border-dim);
  transition: color var(--transition);
}
.mobile-menu a:hover { color: var(--white); }
.mobile-menu.open { display: flex; }

/* ============================
   HERO
   ============================ */

.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 60px;
  padding: 160px 60px 0px;
  max-width: 1300px;
  margin: 0 auto;
  position: relative;
}

.hero-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
}
.orb-1 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(201,168,76,0.12), transparent 70%);
  top: -100px; left: -100px;
}
.orb-2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(99,102,241,0.08), transparent 70%);
  bottom: 10%; right: 0;
}
.orb-3 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(201,168,76,0.1), transparent 70%);
  top: 50%; left: 50%;
  transform: translate(-50%,-50%);
}

.grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 60px 60px;
}

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

.hero-label {
  display: inline-block;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--gold);
  background: var(--gold-dim);
  border: 1px solid var(--border);
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 28px;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(3rem, 5.5vw, 5.5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
  color: var(--white);
}
.hero-title em {
  font-style: italic;
  color: var(--gold);
}

.hero-sub {
  font-size: 16px;
  color: var(--white-dim);
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 460px;
}

.hero-cta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 56px;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 28px;
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.stat-num {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  font-weight: 600;
  color: var(--gold);
  line-height: 1;
}
.stat span:last-of-type { font-size: 1.4rem; color: var(--gold); }
.stat-label {
  font-size: 12px;
  color: var(--white-dim);
  letter-spacing: 0.05em;
}

.stat-divider {
  width: 1px;
  height: 36px;
  background: var(--border-dim);
}

/* Hero Visual */
.hero-visual {
  position: relative;
  z-index: 1;
  height: 500px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-mockup {
  background: var(--bg-3);
  border: 1px solid var(--border-dim);
  border-radius: 20px;
  overflow: hidden;
  width: 340px;
  box-shadow: var(--shadow);
  position: relative;
  z-index: 1;
}

.mockup-bar {
  background: var(--bg-2);
  padding: 12px 16px;
  display: flex;
  gap: 6px;
  border-bottom: 1px solid var(--border-dim);
}
.mockup-bar span {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--border-dim);
}
.mockup-bar span:nth-child(1) { background: #ff5f57; }
.mockup-bar span:nth-child(2) { background: #febc2e; }
.mockup-bar span:nth-child(3) { background: #28c840; }

.mockup-content { padding: 20px; }

.mockup-video {
  background: linear-gradient(135deg, #1a1a2e, #0d1117);
  border-radius: 12px;
  height: 130px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-bottom: 16px;
  position: relative;
  overflow: hidden;
}
.mockup-video::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(201,168,76,0.1), transparent);
}

.play-btn {
  width: 44px; height: 44px;
  background: var(--gold);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: #0a0a0f;
  position: relative;
  z-index: 1;
}

.mockup-video span {
  font-size: 11px;
  color: var(--white-dim);
  position: relative;
  z-index: 1;
}

.mockup-progress { margin-bottom: 16px; }
.mp-label {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--white-dim);
  margin-bottom: 6px;
}
.mp-pct { color: var(--gold); font-weight: 600; }
.mp-bar {
  height: 4px;
  background: var(--bg-2);
  border-radius: 4px;
  overflow: hidden;
}
.mp-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--gold), var(--gold-light));
  border-radius: 4px;
  width: 0%;
  transition: width 1.5s ease 0.5s;
}

.mockup-lessons { display: flex; flex-direction: column; gap: 6px; }
.ml-item {
  font-size: 11px;
  color: var(--white-dim);
  padding: 6px 10px;
  border-radius: 6px;
  transition: background var(--transition);
}
.ml-item.done { color: rgba(201,168,76,0.7); }
.ml-item.active {
  background: var(--gold-dim);
  color: var(--gold);
  font-weight: 500;
}

/* Floating cards */
.floating-card {
  position: absolute;
  background: var(--bg-3);
  border: 1px solid var(--border-dim);
  border-radius: 12px;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: 0 16px 40px rgba(0,0,0,0.4);
  z-index: 2;
}

.floating-card .fc-icon { font-size: 22px; }
.floating-card .fc-text { display: flex; flex-direction: column; gap: 2px; }
.floating-card .fc-text strong { font-size: 12px; font-weight: 600; color: var(--white); }
.floating-card .fc-text span { font-size: 10px; color: var(--white-dim); }

.card-1 {
  top: 20px; left: -40px;
  animation: float1 4s ease-in-out infinite;
}
.card-2 {
  bottom: 80px; left: -60px;
  animation: float2 5s ease-in-out infinite;
}
.card-3 {
  top: 60px; right: -20px;
  animation: float3 4.5s ease-in-out infinite;
}

@keyframes float1 {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
@keyframes float2 {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(8px); }
}
@keyframes float3 {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.scroll-hint {
  position: absolute;
  bottom: 32px;
  left: 60px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--white-dim);
  text-transform: uppercase;
}

.scroll-arrow {
  width: 20px;
  height: 20px;
  border-right: 2px solid var(--gold);
  border-bottom: 2px solid var(--gold);
  transform: rotate(45deg);
  animation: scrollBounce 1.5s ease-in-out infinite;
}
@keyframes scrollBounce {
  0%, 100% { transform: rotate(45deg) translateY(0); }
  50% { transform: rotate(45deg) translateY(4px); }
}

/* ============================
   FEATURES
   ============================ */

.features {
  padding: 0;
  position: relative;
  padding-bottom: 130px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 56px;
}

.feature-card {
  background: var(--bg-2);
  border: 1px solid var(--border-dim);
  border-radius: var(--radius);
  padding: 32px;
  position: relative;
  overflow: hidden;
  transition: border-color var(--transition), transform var(--transition);
}
.feature-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--gold-dim), transparent 60%);
  opacity: 0;
  transition: opacity var(--transition);
}
.feature-card:hover {
  border-color: var(--border);
  transform: translateY(-4px);
}
.feature-card:hover::before { opacity: 1; }

.fc-num {
  font-family: var(--font-serif);
  font-size: 3rem;
  font-weight: 700;
  color: var(--border-dim);
  position: absolute;
  top: 20px; right: 24px;
  line-height: 1;
}

.fc-icon-big {
  font-size: 2rem;
  margin-bottom: 20px;
  position: relative;
  z-index: 1;
}

.feature-card h3 {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 10px;
  position: relative;
  z-index: 1;
}

.feature-card p {
  font-size: 14px;
  color: var(--white-dim);
  line-height: 1.65;
  position: relative;
  z-index: 1;
}

/* ============================
   COURSES
   ============================ */

.courses {
  padding: 120px 0;
  background: var(--bg-2);
}

.courses-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 48px;
  flex-wrap: wrap;
  gap: 20px;
}

.course-tabs {
  display: flex;
  gap: 8px;
  background: var(--bg-3);
  padding: 6px;
  border-radius: 10px;
  border: 1px solid var(--border-dim);
}

.tab {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  padding: 7px 16px;
  border-radius: 7px;
  border: none;
  background: none;
  color: var(--white-dim);
  cursor: pointer;
  transition: var(--transition);
}
.tab.active, .tab:hover {
  background: var(--gold);
  color: #0a0a0f;
}

.courses-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.course-card {
  background: var(--bg-3);
  border: 1px solid var(--border-dim);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.course-card:hover {
  transform: translateY(-6px);
  border-color: var(--border);
  box-shadow: 0 24px 48px rgba(0,0,0,0.4);
}

.cc-thumb {
  height: 140px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.cc-emoji { font-size: 3rem; }

.cc-badge {
  position: absolute;
  top: 12px; right: 12px;
  background: var(--gold);
  color: #0a0a0f;
  font-size: 10px;
  font-weight: 700;
  padding: 3px 9px;
  border-radius: 100px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.cc-body { padding: 20px; }

.cc-meta {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--white-dim);
  margin-bottom: 10px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.cc-meta span:first-child { color: var(--gold); font-weight: 600; }

.cc-body h3 {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 14px;
  line-height: 1.3;
}

.cc-author {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--white-dim);
  margin-bottom: 16px;
}

.author-avatar {
  width: 26px; height: 26px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
  color: #0a0a0f;
  flex-shrink: 0;
}

.cc-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 14px;
  border-top: 1px solid var(--border-dim);
}

.cc-stars {
  font-size: 12px;
  color: var(--gold);
}
.cc-stars span { color: var(--white-dim); margin-left: 4px; }

.cc-price {
  font-size: 13px;
  font-weight: 600;
  color: var(--gold);
}

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

/* ============================
   HOW IT WORKS
   ============================ */

.how {
  padding: 120px 0;
  position: relative;
}

.how .section-title { text-align: center; margin-bottom: 72px; }
.how .section-label { text-align: center; }

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
  position: relative;
}

.steps::before {
  content: '';
  position: absolute;
  top: 36px;
  left: calc(16.66% + 32px);
  right: calc(16.66% + 32px);
  height: 1px;
  background: linear-gradient(90deg, var(--border), var(--border-dim), var(--border));
}

.step {
  text-align: center;
  position: relative;
}

.step-num {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--gold);
  margin-bottom: 16px;
}

.step-icon {
  width: 72px; height: 72px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin: 0 auto 24px;
  position: relative;
  z-index: 1;
}

.step h3 {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.step p {
  font-size: 14px;
  color: var(--white-dim);
  line-height: 1.65;
  max-width: 250px;
  margin: 0 auto;
}

/* ============================
   TEACHERS
   ============================ */

.teachers {
  padding: 120px 0;
  background: var(--bg-2);
}

.teachers-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.teachers-text .section-title { margin-bottom: 20px; }

.teachers-text p {
  font-size: 15px;
  color: var(--white-dim);
  line-height: 1.7;
  margin-bottom: 28px;
}

.teachers-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 36px;
}

.teachers-list li {
  font-size: 14px;
  color: var(--white-dim);
  display: flex;
  align-items: center;
  gap: 10px;
}
.teachers-list li::first-letter { color: var(--gold); }

.tv-card {
  background: var(--bg-3);
  border: 1px solid var(--border-dim);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
}

.tv-header {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--white-dim);
  margin-bottom: 20px;
}

.tv-course {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border-dim);
}

.tvc-icon { font-size: 1.5rem; }

.tvc-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 1;
}
.tvc-info strong { font-size: 14px; }
.tvc-info span { font-size: 11px; color: var(--white-dim); }

.tvc-stat {
  font-size: 13px;
  font-weight: 600;
  color: #4ade80;
}

.tv-total {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}
.tv-total span { font-size: 13px; color: var(--white-dim); }
.tv-total strong {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  color: var(--gold);
}

/* ============================
   TESTIMONIALS
   ============================ */

.testimonials {
  padding: 120px 0;
}

.testi-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 56px;
}

.testi-card {
  background: var(--bg-2);
  border: 1px solid var(--border-dim);
  border-radius: var(--radius);
  padding: 32px;
  position: relative;
  transition: border-color var(--transition);
}
.testi-card:hover { border-color: var(--border); }

.testi-quote {
  font-family: var(--font-serif);
  font-size: 5rem;
  color: var(--gold);
  opacity: 0.3;
  line-height: 0.5;
  margin-bottom: 20px;
}

.testi-card p {
  font-size: 15px;
  color: var(--white-dim);
  line-height: 1.7;
  margin-bottom: 24px;
  font-style: italic;
}

.testi-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.ta-avatar {
  width: 40px; height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 15px;
  color: #0a0a0f;
  flex-shrink: 0;
}

.testi-author > div {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.testi-author strong { font-size: 14px; }
.testi-author span { font-size: 12px; color: var(--white-dim); }

/* ============================
   FINAL CTA
   ============================ */

.final-cta {
  padding: 120px 0;
  position: relative;
  overflow: hidden;
}

.cta-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.final-inner {
  text-align: center;
  position: relative;
  z-index: 1;
}

.final-inner h2 {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 20px;
}
.final-inner h2 em { font-style: italic; color: var(--gold); }

.final-inner p {
  font-size: 16px;
  color: var(--white-dim);
  margin-bottom: 40px;
}

/* ============================
   FOOTER
   ============================ */

.footer {
  background: var(--bg-2);
  border-top: 1px solid var(--border-dim);
  padding: 72px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 56px;
}

.footer-brand .logo {
  font-size: 22px;
  display: inline-block;
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 13px;
  color: var(--white-dim);
  line-height: 1.65;
  max-width: 260px;
  margin-bottom: 20px;
}

.footer-socials {
  display: flex;
  gap: 10px;
}
.footer-socials a {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--white-dim);
  background: var(--bg-3);
  border: 1px solid var(--border-dim);
  padding: 6px 14px;
  border-radius: 6px;
  transition: var(--transition);
}
.footer-socials a:hover { color: var(--gold); border-color: var(--border); }

.footer-col h4 {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: 20px;
}

.footer-col a {
  display: block;
  font-size: 13px;
  color: var(--white-dim);
  padding: 5px 0;
  transition: color var(--transition);
}
.footer-col a:hover { color: var(--gold); }

.footer-bottom {
  padding-top: 28px;
  border-top: 1px solid var(--border-dim);
  font-size: 12px;
  color: var(--white-dim);
  text-align: center;
}

/* ============================
   HIDE CARDS ON MOBILE
   ============================ */

@media (max-width: 1024px) {
  .hero {
    grid-template-columns: 1fr;
    padding: 130px 32px 80px;
    text-align: center;
  }
  .hero-sub { margin: 0 auto 36px; }
  .hero-cta { justify-content: center; }
  .hero-stats { justify-content: center; }
  .hero-visual { display: none; }
  .scroll-hint { left: 50%; transform: translateX(-50%); }

  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .courses-grid { grid-template-columns: repeat(2, 1fr); }
  .testi-grid { grid-template-columns: repeat(2, 1fr); }
  .teachers-inner { grid-template-columns: 1fr; gap: 48px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .steps::before { display: none; }
}

@media (max-width: 768px) {
  .nav-links, .nav-actions { display: none; }
  .burger { display: flex; }

  .features-grid { grid-template-columns: 1fr; }
  .courses-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; gap: 32px; }
  .testi-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }

  .courses-header { flex-direction: column; align-items: flex-start; }
}

/* ============================
   MODALS — POPUP AUTH
   ============================ */

/* Overlay */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;

  /* Hidden by default */
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.38s cubic-bezier(0.4,0,0.2,1),
              visibility 0.38s cubic-bezier(0.4,0,0.2,1);
}

.modal-overlay.modal-active {
  opacity: 1;
  visibility: visible;
  pointer-events: all;
}

/* Backdrop blur layer */
.modal-overlay::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(6, 6, 10, 0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

/* Box */
.modal-box {
  position: relative;
  z-index: 1;
  background: var(--bg-3);
  border: 1px solid rgba(201, 168, 76, 0.22);
  border-radius: 24px;
  padding: 48px 44px 44px;
  width: 100%;
  max-width: 440px;
  box-shadow:
    0 0 0 1px rgba(201, 168, 76, 0.06),
    0 32px 80px rgba(0, 0, 0, 0.7),
    0 0 60px rgba(201, 168, 76, 0.04) inset;
  overflow: hidden;

  transform: translateY(28px) scale(0.97);
  transition: transform 0.42s cubic-bezier(0.34, 1.36, 0.64, 1);
}

.modal-overlay.modal-active .modal-box {
  transform: translateY(0) scale(1);
}

.modal-box--wide {
  max-width: 520px;
}

/* Decorative orbs inside modal */
.modal-orb {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  filter: blur(48px);
}
.modal-orb-1 {
  width: 220px; height: 220px;
  background: radial-gradient(circle, rgba(201,168,76,0.09), transparent 70%);
  top: -60px; right: -60px;
}
.modal-orb-2 {
  width: 180px; height: 180px;
  background: radial-gradient(circle, rgba(99,102,241,0.07), transparent 70%);
  bottom: -40px; left: -40px;
}

/* Brand */
.modal-brand {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 24px;
  letter-spacing: -0.01em;
}

/* Close button */
.modal-close {
  position: absolute;
  top: 20px; right: 20px;
  background: var(--white-faint);
  border: 1px solid var(--border-dim);
  color: var(--white-dim);
  width: 34px; height: 34px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
  z-index: 2;
}
.modal-close:hover {
  background: rgba(201,168,76,0.15);
  border-color: var(--border);
  color: var(--gold);
}

/* Titles */
.modal-title {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  font-weight: 700;
  color: var(--white);
  margin-bottom: 8px;
  line-height: 1.15;
}

.modal-sub {
  font-size: 13px;
  color: var(--white-dim);
  margin-bottom: 28px;
  line-height: 1.6;
}

/* ── Role Toggle ─────────────────────────────── */
.role-toggle {
  position: relative;
  display: flex;
  background: var(--bg-2);
  border: 1px solid var(--border-dim);
  border-radius: 12px;
  padding: 4px;
  margin-bottom: 24px;
  gap: 0;
}

.role-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  color: var(--white-dim);
  background: none;
  border: none;
  padding: 10px 14px;
  border-radius: 9px;
  cursor: pointer;
  position: relative;
  z-index: 1;
  transition: color 0.3s ease;
}

.role-btn.active {
  color: #0a0a0f;
  font-weight: 600;
}

.role-icon { font-size: 15px; }

/* Animated slider behind buttons */
.role-slider {
  position: absolute;
  top: 4px;
  left: 4px;
  width: calc(50% - 4px);
  height: calc(100% - 8px);
  background: var(--gold);
  border-radius: 9px;
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1),
              box-shadow 0.35s ease;
  box-shadow: 0 4px 16px rgba(201,168,76,0.28);
}

.role-toggle[data-active="teacher"] .role-slider {
  transform: translateX(calc(100% + 0px));
}

/* ── Form ─────────────────────────────── */
.modal-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.mf-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.mf-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.mf-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--white-dim);
}

.mf-input-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.mf-icon {
  position: absolute;
  left: 13px;
  font-size: 13px;
  color: var(--white-dim);
  pointer-events: none;
  opacity: 0.6;
}

.mf-input {
  width: 100%;
  background: var(--bg-2);
  border: 1px solid var(--border-dim);
  border-radius: 10px;
  color: var(--white);
  font-family: var(--font-sans);
  font-size: 14px;
  padding: 12px 12px 12px 38px;
  outline: none;
  transition: border-color 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
}

.mf-input::placeholder { color: rgba(240,237,230,0.25); }

.mf-input:focus {
  border-color: var(--gold);
  background: rgba(201,168,76,0.04);
  box-shadow: 0 0 0 3px rgba(201,168,76,0.1);
}

/* Show/hide password toggle */
.mf-toggle-pw {
  position: absolute;
  right: 12px;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 14px;
  opacity: 0.45;
  transition: opacity 0.2s;
  padding: 0;
  line-height: 1;
}
.mf-toggle-pw:hover { opacity: 0.85; }

/* Submit button inside modal */
.btn-modal-submit {
  width: 100%;
  justify-content: center;
  padding: 13px 24px;
  font-size: 15px;
  border-radius: 10px;
  margin-top: 4px;
  letter-spacing: 0.01em;
}

/* Switch link */
.modal-switch {
  text-align: center;
  margin-top: 20px;
  font-size: 13px;
  color: var(--white-dim);
}

.modal-link {
  background: none;
  border: none;
  color: var(--gold);
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  padding: 0;
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--transition);
}
.modal-link:hover { color: var(--gold-light); }

/* Body lock when modal open */
body.modal-open { overflow: hidden; }

/* Input validation states */
.mf-input.error {
  border-color: rgba(239, 68, 68, 0.6);
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}
.mf-input.success {
  border-color: rgba(74, 222, 128, 0.5);
}

/* ── Modal Responsive ─────────────────────────── */
@media (max-width: 540px) {
  .modal-box {
    padding: 36px 24px 32px;
  }
  .mf-row {
    grid-template-columns: 1fr;
  }
  .modal-box--wide {
    max-width: 100%;
  }
}

/* ── Ошибки в формах ─────────────────────────── */
.mf-error-text {
  font-size: 11px;
  color: #ef4444;
  margin-top: 5px;
  padding-left: 4px;
  display: flex;
  align-items: center;
  gap: 5px;
  animation: errorFadeIn 0.25s ease;
}

.mf-error-text::before {
  content: '✕';
  font-size: 9px;
  background: rgba(239, 68, 68, 0.15);
  border-radius: 50%;
  width: 14px;
  height: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* Общая ошибка формы (неверный пароль и т.д.) */
.mf-form-error {
  background: rgba(239, 68, 68, 0.08);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: 10px;
  padding: 12px 16px;
  font-size: 13px;
  color: #f87171;
  text-align: center;
  animation: errorFadeIn 0.25s ease;
}

@keyframes errorFadeIn {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ══════════════════════════════════════════════════════
   PATCH: вставить в конец main_page.css
   Карточки каталога внутри секции #courses на главной
══════════════════════════════════════════════════════ */

/* Скрываем карточки при фильтрации по вкладкам */
.courses .cat-card[data-category] { display: flex; }

/* Сетка — повторяет поведение каталога */
.courses .cat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
  margin-top: 8px;
}

/* Карточка */
.courses .cat-card {
  background: var(--bg-2);
  border: 1px solid var(--border-dim);
  border-radius: 20px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  position: relative;
}

.courses .cat-card:hover {
  border-color: var(--border);
  transform: translateY(-5px);
  box-shadow: 0 24px 64px rgba(0,0,0,0.45);
}

.courses .cat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--gold), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}
.courses .cat-card:hover::before { opacity: 1; }

/* Превью */
.courses .cat-card-thumb {
  height: 180px;
  background: linear-gradient(135deg, var(--bg-3), #1a1a2e);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.courses .cat-card-thumb img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.5s ease;
}
.courses .cat-card:hover .cat-card-thumb img { transform: scale(1.04); }

.courses .cat-thumb-placeholder {
  font-size: 3.5rem;
  filter: drop-shadow(0 4px 16px rgba(0,0,0,0.4));
  transition: transform 0.4s ease;
}
.courses .cat-card:hover .cat-thumb-placeholder { transform: scale(1.1); }

/* Бейджи */
.courses .cat-card-badges {
  position: absolute; top: 12px; left: 12px;
  display: flex; gap: 6px; flex-wrap: wrap;
}
.courses .cat-badge {
  font-size: 10px; font-weight: 700;
  letter-spacing: 0.06em;
  padding: 3px 10px; border-radius: 20px;
  backdrop-filter: blur(8px);
}
.courses .cat-badge--category {
  background: rgba(10,10,15,0.7);
  color: var(--gold);
  border: 1px solid var(--border);
}
.courses .cat-badge--hot {
  background: rgba(239,68,68,0.15);
  color: #f87171;
  border: 1px solid rgba(239,68,68,0.3);
}

/* Уровень */
.courses .cat-card-level {
  position: absolute; bottom: 10px; right: 12px;
  font-size: 10px; font-weight: 700;
  letter-spacing: 0.06em;
  padding: 3px 10px; border-radius: 20px;
  backdrop-filter: blur(8px);
  background: rgba(10,10,15,0.75);
}
.courses .cat-level--beginner  { color: #4ade80; border: 1px solid rgba(74,222,128,0.3); }
.courses .cat-level--intermediate { color: var(--gold); border: 1px solid var(--border); }
.courses .cat-level--advanced  { color: #f87171; border: 1px solid rgba(239,68,68,0.3); }

/* Тело */
.courses .cat-card-body {
  padding: 20px; flex: 1;
  display: flex; flex-direction: column; gap: 12px;
}
.courses .cat-card-title {
  font-family: var(--font-serif);
  font-size: 1.2rem; font-weight: 600;
  color: var(--white); line-height: 1.3;
}
.courses .cat-card-desc {
  font-size: 13px; color: var(--white-dim);
  line-height: 1.65; flex: 1;
}

/* Мета */
.courses .cat-card-meta {
  display: flex; gap: 14px; flex-wrap: wrap; padding-top: 4px;
}
.courses .cat-meta-item {
  display: flex; align-items: center; gap: 5px;
  font-size: 11px; color: var(--white-dim); letter-spacing: 0.03em;
}
.courses .cat-meta-icon { font-size: 12px; opacity: 0.7; }

/* Преподаватель */
.courses .cat-card-teacher {
  display: flex; align-items: center; gap: 10px;
  padding-top: 12px;
  border-top: 1px solid var(--border-dim);
}
.courses .cat-teacher-avatar {
  width: 28px; height: 28px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 11px; font-weight: 700; color: #0a0a0f; flex-shrink: 0;
}
.courses .cat-teacher-info {
  display: flex; flex-direction: column; gap: 1px; overflow: hidden;
}
.courses .cat-teacher-name {
  font-size: 12px; font-weight: 500; color: var(--white);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.courses .cat-teacher-role {
  font-size: 10px; color: var(--white-dim);
  letter-spacing: 0.05em; text-transform: uppercase;
}

/* Футер */
.courses .cat-card-footer {
  display: flex; gap: 8px;
  padding: 14px 20px;
  border-top: 1px solid var(--border-dim);
}

/* Кнопки */
.courses .cat-btn {
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--font-sans); font-size: 12px; font-weight: 600;
  padding: 9px 16px; border-radius: 8px; border: none;
  cursor: pointer; transition: all 0.25s ease;
  text-decoration: none; white-space: nowrap; gap: 6px;
}
.courses .cat-btn--primary {
  flex: 1; background: var(--gold); color: #0a0a0f;
}
.courses .cat-btn--primary:hover {
  background: var(--gold-light);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(201,168,76,0.3);
}
.courses .cat-btn--enrolled {
  flex: 1;
  background: rgba(74,222,128,0.1);
  color: #4ade80;
  border: 1px solid rgba(74,222,128,0.25);
  cursor: default;
}
.courses .cat-btn--ghost {
  background: var(--white-faint);
  border: 1px solid var(--border-dim);
  color: var(--white-dim);
}
.courses .cat-btn--ghost:hover {
  border-color: var(--border); color: var(--white);
}

/* Пустое состояние */
.courses .cat-empty { text-align: center; }
.courses .cat-empty-icon { font-size: 3rem; margin-bottom: 16px; opacity: 0.6; }
.courses .cat-empty h2 {
  font-family: var(--font-serif); font-size: 1.6rem;
  font-weight: 600; color: var(--white); margin-bottom: 8px;
}
.courses .cat-empty p { font-size: 14px; color: var(--white-dim); }

/* Responsive */
@media (max-width: 1024px) {
  .courses .cat-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .courses .cat-grid { grid-template-columns: 1fr; }
}

/* ── Бейдж рейтинга (правый верхний угол превью) ─────── */
.courses .cat-card-rating {
  position: absolute;
  top: 12px;
  right: 12px;
  display: flex;
  align-items: center;
  gap: 5px;
  background: rgba(10, 10, 15, 0.82);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(201, 168, 76, 0.40);
  border-radius: 20px;
  padding: 4px 10px;
  z-index: 3;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.35);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.courses .cat-card:hover .cat-card-rating {
  border-color: rgba(201, 168, 76, 0.7);
  box-shadow: 0 4px 20px rgba(201, 168, 76, 0.18);
}

.courses .cat-rating-star {
  color: var(--gold);
  font-size: 13px;
  line-height: 1;
  filter: drop-shadow(0 0 4px rgba(201, 168, 76, 0.5));
}

.courses .cat-rating-value {
  color: var(--white);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1;
}

.courses .cat-rating-count {
  font-size: 10px;
  color: var(--white-dim);
  line-height: 1;
}

.course-filters {
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: flex-end;
}

.course-tabs--level .tab {
  font-size: 12px;
  padding: 5px 14px;
}