/* ============================================================
   IMPERIO DE DANZAS URBANAS — Design System & Styles
   ============================================================ */

/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Bebas+Neue&family=Inter:wght@300;400;500;600;700&display=swap');

/* ── Custom Properties ── */
:root {
  --bg-primary: #0a0a1a;
  --bg-secondary: #0d0b2e;
  --bg-card: rgba(15, 12, 50, 0.7);
  --bg-card-hover: rgba(25, 20, 70, 0.85);

  --violet-400: #e879f9;
  --violet-500: #d946ef;
  --violet-600: #c026d3;
  --violet-700: #a21caf;
  --cyan-400: #22d3ee;
  --cyan-500: #06b6d4;
  --cyan-600: #0891b2;

  /* Urban / Graffiti palette */
  --neon-yellow: #e6ff00;
  --neon-pink: #ff2d7b;
  --neon-green: #39ff14;
  --spray-orange: #ff6b35;
  --urban-dark: #0c0c0c;
  --urban-gray: #1a1a1a;
  --brick-dark: #1c1210;
  --brick-accent: #2a1f1a;

  --gradient-main: linear-gradient(135deg, var(--violet-500), var(--cyan-500));
  --gradient-hero: linear-gradient(160deg, #0d0b2e 0%, #1a0a3e 40%, #0a1628 100%);
  --gradient-glow-violet: 0 0 30px rgba(217, 70, 239, 0.4);
  --gradient-glow-cyan: 0 0 30px rgba(6, 182, 212, 0.4);

  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.75);
  --text-muted: rgba(255, 255, 255, 0.5);

  --font-title: 'Bebas Neue', 'Impact', sans-serif;
  --font-body: 'Inter', -apple-system, sans-serif;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 50px;

  --transition-fast: 0.2s ease;
  --transition-med: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

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

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
button { cursor: pointer; font-family: inherit; border: none; }

/* ── Typography ── */
.section-title {
  font-family: var(--font-title);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  letter-spacing: 3px;
  text-transform: uppercase;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-align: center;
  margin-bottom: 0.5rem;
}

.section-subtitle {
  text-align: center;
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto 3rem;
  font-weight: 300;
}

/* ── Container ── */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

section {
  padding: 6rem 0;
  position: relative;
}

/* ============================================================
   NAVIGATION
   ============================================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 1rem 0;
  transition: background var(--transition-fast), box-shadow var(--transition-fast);
}

.navbar.scrolled {
  background: rgba(10, 10, 26, 0.95);
  backdrop-filter: blur(20px);
  box-shadow: 0 2px 40px rgba(217, 70, 239, 0.15);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-title);
  font-size: 1.5rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-main);
  transition: width var(--transition-med);
}

.nav-links a:hover {
  color: var(--text-primary);
}

.nav-links a:hover::after {
  width: 100%;
}

.nav-cta {
  padding: 0.6rem 1.5rem;
  border-radius: var(--radius-full);
  background: var(--gradient-main);
  color: #fff !important;
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.nav-cta::after { display: none !important; }

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: var(--gradient-glow-violet);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  padding: 5px;
}

.hamburger span {
  display: block;
  width: 26px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition-fast);
}

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

/* ============================================================
   HERO
   ============================================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  background: var(--gradient-hero);
  overflow: hidden;
  padding-top: 80px;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('assets/hero-bg.png') center/cover no-repeat;
  opacity: 0.25;
  z-index: 0;
}

.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, transparent 30%, var(--bg-primary) 80%);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 850px;
  padding: 2rem;
}

.hero-badge {
  display: inline-block;
  padding: 0.4rem 1.2rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(217, 70, 239, 0.4);
  background: rgba(217, 70, 239, 0.1);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--violet-400);
  margin-bottom: 1.5rem;
}

.hero h1 {
  font-family: var(--font-title);
  font-size: clamp(3rem, 9vw, 7rem);
  line-height: 0.95;
  letter-spacing: 4px;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.hero h1 .highlight {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.2rem;
  color: var(--text-secondary);
  max-width: 550px;
  margin: 0 auto 2.5rem;
  font-weight: 300;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ── Buttons ── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 2.5rem;
  border-radius: var(--radius-full);
  background: var(--gradient-main);
  color: #fff;
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 40px rgba(217, 70, 239, 0.4);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 2.5rem;
  border-radius: var(--radius-full);
  background: transparent;
  color: var(--text-primary);
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  border: 2px solid rgba(255, 255, 255, 0.2);
  transition: border-color var(--transition-fast), background var(--transition-fast);
}

.btn-secondary:hover {
  border-color: var(--violet-400);
  background: rgba(217, 70, 239, 0.1);
}

/* Floating particles */
.hero-particles {
  position: absolute;
  inset: 0;
  z-index: 1;
  overflow: hidden;
}

.particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--violet-400);
  border-radius: 50%;
  opacity: 0.5;
  animation: float-up linear infinite;
}

.particle:nth-child(even) { background: var(--cyan-400); }
.particle:nth-child(1) { left: 10%; animation-duration: 8s; animation-delay: 0s; }
.particle:nth-child(2) { left: 25%; animation-duration: 11s; animation-delay: 2s; }
.particle:nth-child(3) { left: 40%; animation-duration: 9s; animation-delay: 4s; }
.particle:nth-child(4) { left: 55%; animation-duration: 13s; animation-delay: 1s; }
.particle:nth-child(5) { left: 70%; animation-duration: 10s; animation-delay: 3s; }
.particle:nth-child(6) { left: 85%; animation-duration: 12s; animation-delay: 5s; }
.particle:nth-child(7) { left: 15%; animation-duration: 14s; animation-delay: 6s; }
.particle:nth-child(8) { left: 60%; animation-duration: 9s; animation-delay: 7s; }

@keyframes float-up {
  0% { transform: translateY(100vh) scale(0); opacity: 0; }
  20% { opacity: 0.6; }
  80% { opacity: 0.3; }
  100% { transform: translateY(-10vh) scale(1); opacity: 0; }
}

/* Hero scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-muted);
  font-size: 0.75rem;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.scroll-indicator .mouse {
  width: 24px;
  height: 38px;
  border: 2px solid rgba(255,255,255,0.3);
  border-radius: 12px;
  position: relative;
}

.scroll-indicator .mouse::after {
  content: '';
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 3px;
  height: 8px;
  background: var(--violet-400);
  border-radius: 3px;
  animation: scroll-down 1.5s infinite;
}

@keyframes scroll-down {
  0% { opacity: 1; transform: translateX(-50%) translateY(0); }
  100% { opacity: 0; transform: translateX(-50%) translateY(15px); }
}

/* ============================================================
   STATS BAR
   ============================================================ */
.stats-bar {
  background: var(--bg-secondary);
  border-top: 1px solid rgba(217, 70, 239, 0.2);
  border-bottom: 1px solid rgba(217, 70, 239, 0.2);
  padding: 2.5rem 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  text-align: center;
}

.stat-item h3 {
  font-family: var(--font-title);
  font-size: 3rem;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

.stat-item p {
  color: var(--text-muted);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-top: 0.3rem;
}

/* ============================================================
   ACADEMIA / ABOUT
   ============================================================ */
#academia {
  background: var(--bg-primary);
}

.academia-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  margin-bottom: 4rem;
}

.academia-text h3 {
  font-family: var(--font-title);
  font-size: 2rem;
  letter-spacing: 2px;
  margin-bottom: 1rem;
  color: var(--violet-400);
}

.academia-text p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
  line-height: 1.8;
}

.academia-visual {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/3;
  background: var(--gradient-main);
  display: flex;
  align-items: center;
  justify-content: center;
}

.academia-visual .visual-content {
  font-family: var(--font-title);
  font-size: 5rem;
  letter-spacing: 4px;
  opacity: 0.15;
  text-transform: uppercase;
}

.academia-visual::after {
  content: '';
  position: absolute;
  inset: 0;
  border: 2px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
}

/* Values cards */
.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 4rem;
}

.value-card {
  background: var(--bg-card);
  border: 1px solid rgba(217, 70, 239, 0.15);
  border-radius: var(--radius-md);
  padding: 2rem;
  text-align: center;
  transition: transform var(--transition-med), border-color var(--transition-med), box-shadow var(--transition-med);
}

.value-card:hover {
  transform: translateY(-5px);
  border-color: rgba(217, 70, 239, 0.4);
  box-shadow: var(--gradient-glow-violet);
}

.value-card .icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.value-card h4 {
  font-family: var(--font-title);
  font-size: 1.4rem;
  letter-spacing: 2px;
  margin-bottom: 0.5rem;
}

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

/* Testimonials */
.testimonials {
  margin-top: 2rem;
}

.testimonials-slider {
  display: flex;
  gap: 1.5rem;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding-bottom: 1rem;
  -ms-overflow-style: none;
  scrollbar-width: none;
}
.testimonials-slider::-webkit-scrollbar { display: none; }

.testimonial-card {
  min-width: 350px;
  scroll-snap-align: start;
  background: var(--bg-card);
  border: 1px solid rgba(217, 70, 239, 0.12);
  border-radius: var(--radius-md);
  padding: 2rem;
  flex-shrink: 0;
}

.testimonial-card .stars {
  color: #fbbf24;
  font-size: 1rem;
  margin-bottom: 1rem;
}

.testimonial-card blockquote {
  color: var(--text-secondary);
  font-style: italic;
  line-height: 1.7;
  margin-bottom: 1.2rem;
  font-size: 0.95rem;
}

.testimonial-card .author {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.testimonial-card .author-avatar {
  width: 40px;
  height: 40px;
  background: var(--gradient-main);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
}

.testimonial-card .author-info span {
  display: block;
}

.testimonial-card .author-info .author-name {
  font-weight: 600;
  font-size: 0.9rem;
}

.testimonial-card .author-info .author-class {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ============================================================
   CLASES — URBAN STYLE (harmonized with page palette)
   ============================================================ */
#clases {
  background: var(--bg-secondary);
  position: relative;
  overflow: hidden;
}

/* Brick wall texture overlay (CSS-only) — subtle distinctive touch */
.urban-bg-texture {
  position: absolute;
  inset: 0;
  opacity: 0.04;
  background-image:
    linear-gradient(to right, rgba(255,255,255,0.08) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.08) 1px, transparent 1px);
  background-size: 60px 30px;
  pointer-events: none;
  z-index: 0;
}

.urban-bg-texture::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 15% 20%, rgba(217, 70, 239, 0.1) 0%, transparent 50%),
    radial-gradient(ellipse at 85% 80%, rgba(6, 182, 212, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 50%, rgba(232, 121, 249, 0.06) 0%, transparent 60%);
  pointer-events: none;
}

#clases .container {
  position: relative;
  z-index: 1;
}

/* Graffiti section title — distinctive touch with page colors */
.graffiti-title {
  position: relative;
  display: inline-block;
  text-shadow:
    3px 3px 0px rgba(217, 70, 239, 0.5),
    -1px -1px 0px rgba(6, 182, 212, 0.3);
}

.graffiti-title::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 10%;
  width: 80%;
  height: 4px;
  background: linear-gradient(90deg, var(--violet-500), var(--cyan-500), var(--violet-400));
  border-radius: 2px;
  filter: blur(1px);
}

/* Filter buttons — sticker / tag style */
.class-filters {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 3rem;
}

.filter-btn {
  padding: 0.55rem 1.4rem;
  border-radius: var(--radius-full);
  background: rgba(217, 70, 239, 0.06);
  border: 1px solid rgba(217, 70, 239, 0.2);
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 600;
  transition: all var(--transition-fast);
  text-transform: uppercase;
  letter-spacing: 1px;
  position: relative;
  transform: rotate(-1deg);
}

.filter-btn:nth-child(2) { transform: rotate(1deg); }
.filter-btn:nth-child(3) { transform: rotate(-0.5deg); }
.filter-btn:nth-child(4) { transform: rotate(1.5deg); }
.filter-btn:nth-child(5) { transform: rotate(-1.2deg); }

.filter-btn:hover,
.filter-btn.active {
  background: var(--gradient-main);
  border-color: var(--violet-500);
  color: #fff;
  box-shadow: 0 0 20px rgba(217, 70, 239, 0.4), 0 0 60px rgba(217, 70, 239, 0.1);
  transform: rotate(0deg) scale(1.05);
}

/* Classes grid */
.classes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.8rem;
}

/* Class card — page-consistent style with urban edge */
.class-card {
  background: var(--bg-card);
  border: 1px solid rgba(217, 70, 239, 0.12);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: transform var(--transition-med), box-shadow var(--transition-med), border-color var(--transition-med);
  position: relative;
}

.class-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-main);
  opacity: 0;
  transition: opacity var(--transition-med);
  z-index: 2;
}

.class-card:hover {
  transform: translateY(-8px);
  border-color: rgba(217, 70, 239, 0.35);
  box-shadow:
    0 20px 50px rgba(0, 0, 0, 0.4),
    var(--gradient-glow-violet);
}

.class-card:hover::before {
  opacity: 1;
}

/* Card image zone */
.class-card-image {
  position: relative;
  width: 100%;
  height: 200px;
  overflow: hidden;
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
}

.class-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-med);
}

.class-card:hover .class-card-image img {
  transform: scale(1.05);
}

.class-card-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    transparent 40%,
    rgba(15, 12, 50, 0.7) 80%,
    rgba(15, 12, 50, 0.95) 100%
  );
  pointer-events: none;
}

/* Level badge — positioned on image */
.class-level {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 2;
  padding: 0.3rem 0.8rem;
  border-radius: 3px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  backdrop-filter: blur(8px);
}

.class-level.principiante {
  background: rgba(6, 182, 212, 0.2);
  color: var(--cyan-400);
  border: 1px solid rgba(6, 182, 212, 0.4);
  text-shadow: 0 0 12px rgba(6, 182, 212, 0.5);
}

.class-level.intermedio {
  background: rgba(217, 70, 239, 0.2);
  color: var(--violet-400);
  border: 1px solid rgba(217, 70, 239, 0.4);
  text-shadow: 0 0 12px rgba(217, 70, 239, 0.5);
}

/* Card body */
.class-card-body {
  padding: 1.2rem 1.5rem 1.5rem;
}

.class-card-body h3 {
  margin-bottom: 1rem;
  line-height: 1;
}

/* GRAFFITI TEXT — spray paint background behind titles (distinctive urban touch) */
.graffiti-text {
  font-family: var(--font-title);
  font-size: 1.9rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: #fff;
  position: relative;
  display: inline;
  padding: 0.15em 0.5em 0.15em 0.35em;
  background: linear-gradient(135deg, rgba(217, 70, 239, 0.85) 0%, rgba(192, 38, 211, 0.85) 100%);
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
  transform: skewX(-2deg);
  display: inline-block;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.4);
  box-shadow:
    4px 4px 0px rgba(0, 0, 0, 0.3),
    inset 0 0 30px rgba(255, 255, 255, 0.05);
}

.graffiti-text::before {
  content: '';
  position: absolute;
  top: -3px;
  left: -5px;
  right: -3px;
  bottom: -3px;
  background: linear-gradient(135deg, rgba(217, 70, 239, 0.3) 0%, transparent 60%);
  z-index: -1;
  filter: blur(6px);
}

/* Each card gets slightly different graffiti accent colors — page palette variations */
.class-card:nth-child(2) .graffiti-text {
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.85) 0%, rgba(217, 70, 239, 0.85) 100%);
}

.class-card:nth-child(3) .graffiti-text {
  background: linear-gradient(135deg, rgba(192, 38, 211, 0.85) 0%, rgba(6, 182, 212, 0.85) 100%);
}

.class-card:nth-child(4) .graffiti-text {
  background: linear-gradient(135deg, rgba(162, 28, 175, 0.85) 0%, rgba(192, 38, 211, 0.85) 100%);
}

.class-card:nth-child(5) .graffiti-text {
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.85) 0%, rgba(8, 145, 178, 0.85) 100%);
}

.class-card:nth-child(6) .graffiti-text {
  background: linear-gradient(135deg, rgba(232, 121, 249, 0.85) 0%, rgba(162, 28, 175, 0.85) 100%);
}

.class-card:nth-child(7) .graffiti-text {
  background: linear-gradient(135deg, rgba(8, 145, 178, 0.85) 0%, rgba(217, 70, 239, 0.85) 100%);
}

.class-card:nth-child(8) .graffiti-text {
  background: linear-gradient(135deg, rgba(192, 38, 211, 0.85) 0%, rgba(232, 121, 249, 0.85) 100%);
}

/* Info items */
.class-info {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-bottom: 1.2rem;
}

.class-info-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
}

.class-info-item .info-icon {
  width: 32px;
  height: 32px;
  border-radius: 6px;
  background: rgba(217, 70, 239, 0.1);
  border: 1px solid rgba(217, 70, 239, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  flex-shrink: 0;
}

/* Enroll button — gradient matching page palette */
.class-card .btn-enroll {
  display: block;
  width: 100%;
  padding: 0.85rem;
  border-radius: var(--radius-sm);
  background: var(--gradient-main);
  color: #fff;
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  text-align: center;
  position: relative;
  overflow: hidden;
  transition: box-shadow var(--transition-fast), transform var(--transition-fast);
}

.class-card .btn-enroll::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
  transition: left 0.5s ease;
}

.class-card .btn-enroll:hover::before {
  left: 100%;
}

.class-card .btn-enroll:hover {
  box-shadow: 0 0 25px rgba(217, 70, 239, 0.5), 0 6px 20px rgba(0, 0, 0, 0.3);
  transform: translateY(-2px);
}

/* Cupos bar — page palette style */
.class-cupos {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.cupos-bar {
  flex: 1;
  height: 3px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 3px;
  overflow: hidden;
}

.cupos-bar-fill {
  height: 100%;
  border-radius: 3px;
  background: var(--gradient-main);
  box-shadow: 0 0 8px rgba(217, 70, 239, 0.3);
  transition: width var(--transition-slow);
}

.cupos-text {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.45);
  white-space: nowrap;
}

.cupos-low {
  color: var(--violet-400);
  text-shadow: 0 0 8px rgba(217, 70, 239, 0.4);
}

/* ============================================================
   ENROLLMENT MODAL
   ============================================================ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(10px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-med), visibility var(--transition-med);
  padding: 1rem;
}

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

.modal {
  background: var(--bg-secondary);
  border: 1px solid rgba(217, 70, 239, 0.2);
  border-radius: var(--radius-lg);
  max-width: 550px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  transform: translateY(20px) scale(0.97);
  transition: transform var(--transition-med);
  scrollbar-width: thin;
  scrollbar-color: var(--violet-500) transparent;
}

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

.modal-header {
  padding: 1.5rem 2rem;
  border-bottom: 1px solid rgba(217, 70, 239, 0.15);
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  background: var(--bg-secondary);
  z-index: 1;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.modal-header h2 {
  font-family: var(--font-title);
  font-size: 1.8rem;
  letter-spacing: 2px;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.modal-close {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  transition: background var(--transition-fast);
}

.modal-close:hover {
  background: rgba(255, 255, 255, 0.15);
}

.modal-body {
  padding: 2rem;
}

.form-group {
  margin-bottom: 1.2rem;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(217, 70, 239, 0.2);
  background: rgba(0, 0, 0, 0.3);
  color: var(--text-primary);
  font-size: 0.95rem;
  font-family: var(--font-body);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
}

.form-group input:focus,
.form-group select:focus {
  border-color: var(--violet-500);
  box-shadow: 0 0 0 3px rgba(217, 70, 239, 0.15);
}

.form-group input::placeholder { color: var(--text-muted); }

.form-group select option { background: var(--bg-secondary); }

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

.tutor-fields {
  border-top: 1px solid rgba(217, 70, 239, 0.15);
  padding-top: 1.2rem;
  margin-top: 0.5rem;
}

.tutor-fields .tutor-notice {
  font-size: 0.8rem;
  color: var(--violet-400);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.form-submit {
  display: block;
  width: 100%;
  padding: 1rem;
  border-radius: var(--radius-sm);
  background: var(--gradient-main);
  color: #fff;
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-top: 1.5rem;
  transition: box-shadow var(--transition-fast), transform var(--transition-fast);
}

.form-submit:hover {
  box-shadow: 0 8px 30px rgba(217, 70, 239, 0.4);
  transform: translateY(-2px);
}

/* Selected class display */
.selected-class-display {
  background: rgba(217, 70, 239, 0.08);
  border: 1px solid rgba(217, 70, 239, 0.2);
  border-radius: var(--radius-sm);
  padding: 1rem;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.selected-class-display .class-icon {
  font-size: 1.5rem;
}

.selected-class-display .class-detail h4 {
  font-family: var(--font-title);
  font-size: 1.2rem;
  letter-spacing: 1px;
}

.selected-class-display .class-detail span {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ============================================================
   FAQ
   ============================================================ */
#faq {
  background: var(--bg-primary);
}

.faq-list {
  max-width: 750px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.faq-item {
  border: 1px solid rgba(217, 70, 239, 0.12);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-item:hover { border-color: rgba(217, 70, 239, 0.3); }

.faq-item.active { border-color: rgba(217, 70, 239, 0.4); }

.faq-question {
  width: 100%;
  padding: 1.2rem 1.5rem;
  background: var(--bg-card);
  color: var(--text-primary);
  font-size: 1rem;
  font-weight: 600;
  text-align: left;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  transition: background var(--transition-fast);
}

.faq-question:hover { background: var(--bg-card-hover); }

.faq-question .faq-icon {
  font-size: 1.2rem;
  transition: transform var(--transition-fast);
  color: var(--violet-400);
  flex-shrink: 0;
}

.faq-item.active .faq-icon { transform: rotate(45deg); }

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-med), padding var(--transition-med);
}

.faq-item.active .faq-answer {
  max-height: 300px;
}

.faq-answer-content {
  padding: 0 1.5rem 1.2rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ============================================================
   CTA SECTION
   ============================================================ */
.cta-section {
  background: var(--bg-secondary);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(217, 70, 239, 0.15), transparent 70%);
  pointer-events: none;
}

.cta-content {
  position: relative;
  z-index: 1;
}

.cta-content h2 {
  font-family: var(--font-title);
  font-size: clamp(2.5rem, 5vw, 4rem);
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.cta-content p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 500px;
  margin: 0 auto 2rem;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: #050510;
  border-top: 1px solid rgba(217, 70, 239, 0.1);
  padding: 3rem 0 1.5rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 2rem;
}

.footer-brand .footer-logo {
  font-family: var(--font-title);
  font-size: 1.8rem;
  letter-spacing: 3px;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.75rem;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.9rem;
  max-width: 300px;
}

.footer h4 {
  font-family: var(--font-title);
  font-size: 1.1rem;
  letter-spacing: 2px;
  margin-bottom: 1rem;
  color: var(--violet-400);
}

.footer-links a {
  display: block;
  color: var(--text-muted);
  font-size: 0.9rem;
  padding: 0.3rem 0;
  transition: color var(--transition-fast);
}

.footer-links a:hover { color: var(--text-primary); }

.footer-social {
  display: flex;
  gap: 0.75rem;
  margin-top: 1rem;
}

.footer-social a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid rgba(217, 70, 239, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  font-size: 1.1rem;
}

.footer-social a:hover {
  background: var(--gradient-main);
  border-color: transparent;
  color: #fff;
}

.footer-bottom {
  text-align: center;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  color: var(--text-muted);
  font-size: 0.8rem;
}

/* ============================================================
   ANIMATIONS (Scroll-triggered)
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 968px) {
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: rgba(10, 10, 26, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    gap: 2rem;
    transition: right var(--transition-med);
    border-left: 1px solid rgba(217, 70, 239, 0.2);
  }

  .nav-links.active { right: 0; }

  .hamburger { display: flex; }

  .academia-grid { grid-template-columns: 1fr; gap: 2rem; }

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

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

  .footer-grid { grid-template-columns: 1fr; text-align: center; }
  .footer-brand p { margin: 0.5rem auto; }
  .footer-social { justify-content: center; }

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

@media (max-width: 640px) {
  section { padding: 4rem 0; }

  .hero h1 { font-size: clamp(2.5rem, 12vw, 4rem); }

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

  .testimonial-card { min-width: 280px; }

  .stats-grid { grid-template-columns: 1fr 1fr; gap: 1.5rem; }

  .modal-body { padding: 1.5rem; }
  .modal-header { padding: 1.2rem 1.5rem; }
}

/* ── Scrollbar styling ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--violet-700); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--violet-500); }