@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Space+Grotesk:wght@400;500;600;700&display=swap');

/* =============================================
   CSS VARIABLES & DESIGN TOKENS
   ============================================= */
:root {
  --color-bg:          #050b18;
  --color-bg-2:        #080f20;
  --color-surface:     #0d1a2e;
  --color-surface-2:   #112240;
  --color-border:      rgba(0, 180, 255, 0.12);
  --color-primary:     #00b4ff;
  --color-primary-dark:#0078c8;
  --color-accent:      #00e5c0;
  --color-gold:        #f5c842;
  --color-text:        #e8f4ff;
  --color-text-muted:  #7a9ab8;
  --color-white:       #ffffff;
  --glow-blue:         0 0 40px rgba(0, 180, 255, 0.25);
  --glow-accent:       0 0 30px rgba(0, 229, 192, 0.2);
  --radius-sm:         8px;
  --radius-md:         14px;
  --radius-lg:         22px;
  --radius-xl:         32px;
  --font-head:         'Space Grotesk', 'Inter', sans-serif;
  --font-body:         'Inter', sans-serif;
  --transition:        all 0.3s ease;
}

/* =============================================
   RESET & BASE
   ============================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

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

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

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }
button, input, textarea, select { font-family: inherit; }

/* =============================================
   TYPOGRAPHY
   ============================================= */
h1, h2, h3, h4, h5 {
  font-family: var(--font-head);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-white);
}
h1 { font-size: clamp(2.2rem, 5vw, 4.2rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 3rem); }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.9rem); }
h4 { font-size: 1.2rem; }
p  { font-size: 1rem; color: var(--color-text-muted); line-height: 1.7; }

.section-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 12px;
  display: block;
}
.section-title { margin-bottom: 16px; }
.section-desc  { max-width: 640px; font-size: 1.05rem; }

.text-gradient {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.text-gold {
  background: linear-gradient(135deg, #f5c842, #e8a020);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* =============================================
   LAYOUT
   ============================================= */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.container--wide { max-width: 1400px; }
.container--narrow { max-width: 860px; }

section { padding: 96px 0; }
.section-center { text-align: center; }
.section-center .section-desc { margin: 0 auto; }

/* =============================================
   GRID BACKGROUND DECORATION
   ============================================= */
.grid-bg {
  position: relative;
  overflow: hidden;
}
.grid-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,180,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,180,255,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.glow-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  opacity: 0.35;
}
.glow-orb--blue  { background: #0066cc; width: 500px; height: 500px; }
.glow-orb--cyan  { background: #00c8a0; width: 400px; height: 400px; }
.glow-orb--gold  { background: #c88000; width: 300px; height: 300px; }

/* =============================================
   HEADER / NAVIGATION
   ============================================= */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(5, 11, 24, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-head);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-white);
  text-decoration: none;
}
.logo-icon {
  width: 38px; height: 38px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem; font-weight: 900; color: #fff;
  box-shadow: var(--glow-blue);
  flex-shrink: 0;
}
.logo-text span { color: var(--color-primary); }

.site-nav { display: flex; align-items: center; gap: 4px; }
.site-nav a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-muted);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  white-space: nowrap;
}
.site-nav a:hover,
.site-nav a.active {
  color: var(--color-white);
  background: rgba(0,180,255,0.08);
}

.nav-dropdown { position: relative; }
.nav-dropdown > a { display: flex; align-items: center; gap: 5px; cursor: pointer; }
.nav-dropdown > a::after {
  content: '▾';
  font-size: 0.75rem;
  transition: var(--transition);
}
.nav-dropdown:hover > a::after { transform: rotate(180deg); }
.dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  min-width: 220px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: var(--transition);
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}
.nav-dropdown:hover .dropdown-menu {
  opacity: 1; visibility: visible; transform: translateY(0);
}
.dropdown-menu a {
  display: block;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
}

.header-cta {
  display: flex; align-items: center; gap: 12px; flex-shrink: 0;
}

/* Hamburger */
.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  background: none;
  border: none;
}
.burger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: var(--transition);
}
.burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger.open span:nth-child(2) { opacity: 0; }
.burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-nav {
  display: none;
  position: fixed;
  top: 72px; left: 0; right: 0;
  background: var(--color-bg-2);
  border-bottom: 1px solid var(--color-border);
  padding: 16px 24px 24px;
  z-index: 999;
}
.mobile-nav.open { display: block; }
.mobile-nav a {
  display: block;
  padding: 12px 0;
  font-size: 1rem;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
}
.mobile-nav a:last-child { border-bottom: none; }

/* =============================================
   BUTTONS
   ============================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 28px;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
  text-decoration: none;
}
.btn--primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #fff;
  box-shadow: 0 0 20px rgba(0,180,255,0.3);
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 30px rgba(0,180,255,0.5);
}
.btn--accent {
  background: linear-gradient(135deg, var(--color-accent), #00b090);
  color: #051020;
  box-shadow: var(--glow-accent);
}
.btn--accent:hover { transform: translateY(-2px); filter: brightness(1.1); }
.btn--outline {
  background: transparent;
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
}
.btn--outline:hover {
  background: rgba(0,180,255,0.1);
  transform: translateY(-2px);
}
.btn--ghost {
  background: rgba(255,255,255,0.05);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.btn--ghost:hover { background: rgba(255,255,255,0.1); }
.btn--gold {
  background: linear-gradient(135deg, #f5c842, #e8a020);
  color: #0a1020;
  font-weight: 700;
}
.btn--gold:hover { transform: translateY(-2px); filter: brightness(1.05); }
.btn--sm { padding: 9px 18px; font-size: 0.82rem; }
.btn--lg { padding: 17px 38px; font-size: 1rem; }

/* =============================================
   CARDS
   ============================================= */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: var(--transition);
}
.card:hover {
  border-color: rgba(0,180,255,0.3);
  box-shadow: 0 8px 40px rgba(0,0,0,0.4), var(--glow-blue);
  transform: translateY(-4px);
}
.card--glass {
  background: rgba(13, 26, 46, 0.6);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}
.card--glow {
  box-shadow: 0 0 0 1px rgba(0,180,255,0.15), inset 0 0 40px rgba(0,180,255,0.03);
}

.card-icon {
  width: 52px; height: 52px;
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 20px;
}
.card-icon--blue  { background: rgba(0,180,255,0.12); color: var(--color-primary); }
.card-icon--cyan  { background: rgba(0,229,192,0.12); color: var(--color-accent); }
.card-icon--gold  { background: rgba(245,200,66,0.12); color: var(--color-gold); }
.card-icon--green { background: rgba(80,200,80,0.12);  color: #50c850; }

/* =============================================
   HERO SECTION
   ============================================= */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 72px;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 16px;
  background: rgba(0,180,255,0.08);
  border: 1px solid rgba(0,180,255,0.25);
  border-radius: 40px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 28px;
  letter-spacing: 0.05em;
}
.hero-badge-dot {
  width: 8px; height: 8px;
  background: var(--color-accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.3); }
}
.hero-title { margin-bottom: 24px; }
.hero-desc { font-size: 1.15rem; margin-bottom: 40px; max-width: 560px; }
.hero-actions { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 56px;
  padding-top: 40px;
  border-top: 1px solid var(--color-border);
}
.hero-stat-num {
  font-family: var(--font-head);
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-white);
  line-height: 1;
}
.hero-stat-num span { color: var(--color-primary); }
.hero-stat-label { font-size: 0.8rem; color: var(--color-text-muted); margin-top: 4px; }

.hero-visual {
  position: absolute;
  right: -60px;
  top: 50%;
  transform: translateY(-50%);
  width: 520px;
  z-index: 1;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: -20px 0 80px rgba(0,0,0,0.5), var(--glow-blue);
}
.hero-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-xl);
  opacity: 0.85;
}

/* =============================================
   PROGRAM CARDS
   ============================================= */
.programs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}
.program-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
}
.program-card:hover {
  border-color: rgba(0,180,255,0.3);
  transform: translateY(-6px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.4), var(--glow-blue);
}
.program-card-img {
  height: 200px;
  overflow: hidden;
  position: relative;
}
.program-card-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.program-card:hover .program-card-img img { transform: scale(1.06); }
.program-card-badge {
  position: absolute;
  top: 14px; left: 14px;
  padding: 5px 12px;
  border-radius: 30px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}
.badge--blue  { background: rgba(0,180,255,0.85); color: #fff; }
.badge--green { background: rgba(0,200,120,0.85); color: #fff; }
.badge--gold  { background: rgba(245,200,66,0.9);  color: #0a1020; }
.badge--cyan  { background: rgba(0,229,192,0.85); color: #051020; }

.program-card-body { padding: 28px; }
.program-card-meta {
  display: flex;
  gap: 16px;
  margin-bottom: 14px;
}
.program-card-meta span {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: 5px;
}
.program-card-title {
  font-family: var(--font-head);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 10px;
}
.program-card-desc { font-size: 0.875rem; margin-bottom: 20px; }
.program-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 20px;
  border-top: 1px solid var(--color-border);
}
.program-card-price {
  font-family: var(--font-head);
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--color-white);
}
.program-card-price span {
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--color-text-muted);
}

/* =============================================
   ARTICLE CARDS
   ============================================= */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}
.article-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
}
.article-card:hover {
  border-color: rgba(0,180,255,0.3);
  transform: translateY(-4px);
  box-shadow: 0 16px 50px rgba(0,0,0,0.4);
}
.article-card-img {
  height: 200px;
  overflow: hidden;
}
.article-card-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.article-card:hover .article-card-img img { transform: scale(1.05); }
.article-card-body { padding: 24px; }
.article-card-cat {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.article-card-title {
  font-family: var(--font-head);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 10px;
  line-height: 1.35;
}
.article-card-excerpt { font-size: 0.855rem; margin-bottom: 16px; }
.article-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--color-text-muted);
}
.article-read-more {
  color: var(--color-primary);
  font-weight: 600;
  font-size: 0.82rem;
  display: flex;
  align-items: center;
  gap: 4px;
  transition: var(--transition);
}
.article-read-more:hover { gap: 8px; }

/* =============================================
   FEATURE GRID
   ============================================= */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

/* =============================================
   STATS SECTION
   ============================================= */
.stats-section {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: 64px 0;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}
.stat-item {
  text-align: center;
  padding: 24px;
  border-right: 1px solid var(--color-border);
}
.stat-item:last-child { border-right: none; }
.stat-number {
  font-family: var(--font-head);
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--color-white);
  line-height: 1;
  margin-bottom: 8px;
}
.stat-number span { color: var(--color-primary); }
.stat-label { font-size: 0.875rem; color: var(--color-text-muted); }

/* =============================================
   TESTIMONIAL SECTION
   ============================================= */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}
.testimonial-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
}
.testimonial-stars { color: var(--color-gold); font-size: 1.1rem; margin-bottom: 18px; }
.testimonial-text {
  font-size: 0.95rem;
  color: var(--color-text);
  line-height: 1.7;
  margin-bottom: 24px;
  font-style: italic;
}
.testimonial-author { display: flex; align-items: center; gap: 14px; }
.testimonial-avatar {
  width: 46px; height: 46px;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid var(--color-border);
  flex-shrink: 0;
}
.testimonial-avatar img { width: 100%; height: 100%; object-fit: cover; }
.testimonial-name {
  font-weight: 700;
  color: var(--color-white);
  font-size: 0.9rem;
}
.testimonial-role { font-size: 0.8rem; color: var(--color-text-muted); }

/* =============================================
   TEAM SECTION
   ============================================= */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}
.team-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  text-align: center;
  transition: var(--transition);
}
.team-card:hover {
  border-color: rgba(0,180,255,0.3);
  transform: translateY(-4px);
}
.team-card-img {
  height: 240px;
  overflow: hidden;
}
.team-card-img img { width: 100%; height: 100%; object-fit: cover; }
.team-card-body { padding: 22px; }
.team-card-name {
  font-family: var(--font-head);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 4px;
}
.team-card-role { font-size: 0.82rem; color: var(--color-primary); margin-bottom: 12px; }
.team-card-bio { font-size: 0.82rem; line-height: 1.6; }

/* =============================================
   BREADCRUMB
   ============================================= */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 24px;
}
.breadcrumb a { color: var(--color-primary); }
.breadcrumb a:hover { color: var(--color-white); }
.breadcrumb span { color: var(--color-text-muted); }

/* =============================================
   PAGE HERO (INNER PAGES)
   ============================================= */
.page-hero {
  padding: 130px 0 80px;
  position: relative;
  overflow: hidden;
  background: var(--color-bg-2);
  border-bottom: 1px solid var(--color-border);
}
.page-hero-content { position: relative; z-index: 2; }
.page-hero-subtitle {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  margin-top: 16px;
  max-width: 600px;
}

/* =============================================
   ACCORDION / FAQ
   ============================================= */
.faq-list { display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.faq-question {
  width: 100%;
  padding: 22px 24px;
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  text-align: left;
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-white);
  transition: var(--transition);
}
.faq-question:hover { color: var(--color-primary); }
.faq-icon {
  width: 24px; height: 24px;
  border: 1.5px solid var(--color-border);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem;
  color: var(--color-primary);
  flex-shrink: 0;
  transition: var(--transition);
}
.faq-item.open .faq-icon { transform: rotate(45deg); background: rgba(0,180,255,0.1); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}
.faq-answer-inner {
  padding: 0 24px 22px;
  font-size: 0.92rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}
.faq-item.open .faq-answer { max-height: 400px; }

/* =============================================
   CONTACT FORM
   ============================================= */
.contact-form {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 48px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-group { display: flex; flex-direction: column; gap: 8px; }
.form-group--full { grid-column: 1 / -1; }
.form-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text);
}
.form-control {
  width: 100%;
  padding: 13px 18px;
  background: var(--color-bg-2);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-white);
  font-size: 0.9rem;
  transition: var(--transition);
  outline: none;
}
.form-control:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0,180,255,0.1);
}
.form-control::placeholder { color: var(--color-text-muted); }
textarea.form-control { resize: vertical; min-height: 130px; }
select.form-control { cursor: pointer; }

.form-success {
  display: none;
  text-align: center;
  padding: 40px;
}
.form-success.show { display: block; }
.form-success-icon {
  width: 64px; height: 64px;
  background: rgba(0,229,192,0.1);
  border: 2px solid var(--color-accent);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.8rem;
  margin: 0 auto 20px;
}
.form-success h3 { color: var(--color-accent); margin-bottom: 10px; }

/* =============================================
   TABS
   ============================================= */
.tabs-nav {
  display: flex;
  gap: 4px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 6px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}
.tab-btn {
  padding: 10px 20px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-muted);
  background: none;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}
.tab-btn:hover { color: var(--color-white); }
.tab-btn.active {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 0 16px rgba(0,180,255,0.3);
}
.tab-pane { display: none; }
.tab-pane.active { display: block; }

/* =============================================
   PROGRESS / SKILL BARS
   ============================================= */
.skill-bar { margin-bottom: 18px; }
.skill-header { display: flex; justify-content: space-between; margin-bottom: 8px; }
.skill-name { font-size: 0.875rem; font-weight: 600; color: var(--color-text); }
.skill-pct  { font-size: 0.875rem; color: var(--color-primary); font-weight: 700; }
.skill-track {
  height: 6px;
  background: var(--color-surface-2);
  border-radius: 3px;
  overflow: hidden;
}
.skill-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  border-radius: 3px;
  transition: width 1.2s ease;
}

/* =============================================
   TIMELINE
   ============================================= */
.timeline { position: relative; padding-left: 40px; }
.timeline::before {
  content: '';
  position: absolute;
  left: 14px; top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--color-primary), var(--color-accent), transparent);
}
.timeline-item { position: relative; margin-bottom: 40px; }
.timeline-dot {
  position: absolute;
  left: -33px;
  top: 4px;
  width: 16px; height: 16px;
  background: var(--color-primary);
  border-radius: 50%;
  border: 3px solid var(--color-bg);
  box-shadow: 0 0 10px rgba(0,180,255,0.5);
}
.timeline-date {
  font-size: 0.8rem;
  color: var(--color-primary);
  font-weight: 700;
  margin-bottom: 6px;
}
.timeline-title { font-size: 1rem; font-weight: 700; color: var(--color-white); margin-bottom: 6px; }
.timeline-desc  { font-size: 0.875rem; }

/* =============================================
   ARTICLE / BLOG POST
   ============================================= */
.article-content { max-width: 800px; }
.article-content h2 {
  font-size: 1.6rem;
  margin: 40px 0 16px;
  color: var(--color-white);
}
.article-content h3 {
  font-size: 1.25rem;
  margin: 30px 0 12px;
  color: var(--color-white);
}
.article-content p {
  font-size: 1rem;
  color: var(--color-text);
  line-height: 1.8;
  margin-bottom: 20px;
}
.article-content ul, .article-content ol {
  list-style: disc;
  padding-left: 24px;
  margin-bottom: 20px;
}
.article-content li {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  margin-bottom: 8px;
  line-height: 1.7;
}
.article-content blockquote {
  border-left: 3px solid var(--color-primary);
  padding: 16px 24px;
  background: rgba(0,180,255,0.04);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 24px 0;
  font-style: italic;
}
.article-content blockquote p {
  font-size: 1.05rem;
  color: var(--color-text);
  margin: 0;
}
.article-meta {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 36px;
  flex-wrap: wrap;
}
.article-meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}
.article-meta-item strong { color: var(--color-text); }
.article-share {
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--color-border);
}
.article-share-title { font-size: 0.875rem; color: var(--color-text-muted); margin-bottom: 12px; }
.share-links { display: flex; gap: 10px; }
.share-link {
  padding: 8px 18px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-text);
  transition: var(--transition);
}
.share-link:hover { border-color: var(--color-primary); color: var(--color-primary); }

/* =============================================
   SIDEBAR
   ============================================= */
.sidebar-widget {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  margin-bottom: 24px;
}
.sidebar-widget-title {
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--color-border);
}
.sidebar-links { display: flex; flex-direction: column; gap: 10px; }
.sidebar-links a {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  display: flex; align-items: center; gap: 8px;
  transition: var(--transition);
}
.sidebar-links a:hover { color: var(--color-primary); background: rgba(0,180,255,0.06); }
.sidebar-links a::before { content: '›'; color: var(--color-primary); }

/* =============================================
   FOOTER
   ============================================= */
.site-footer {
  background: var(--color-bg-2);
  border-top: 1px solid var(--color-border);
  padding: 80px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 60px;
}
.footer-brand-desc {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin: 16px 0 24px;
  line-height: 1.7;
}
.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: 8px;
}
.footer-contact-item a { color: var(--color-text-muted); }
.footer-contact-item a:hover { color: var(--color-primary); }
.footer-col-title {
  font-family: var(--font-head);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 20px;
}
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  transition: var(--transition);
  display: flex; align-items: center; gap: 6px;
}
.footer-links a:hover { color: var(--color-primary); padding-left: 4px; }
.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-bottom-text {
  font-size: 0.82rem;
  color: var(--color-text-muted);
}
.footer-bottom-links { display: flex; gap: 20px; }
.footer-bottom-links a {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  transition: var(--transition);
}
.footer-bottom-links a:hover { color: var(--color-primary); }

/* =============================================
   HIGHLIGHT / INFO BOXES
   ============================================= */
.info-box {
  padding: 24px 28px;
  border-radius: var(--radius-md);
  border-left: 3px solid;
  margin: 24px 0;
}
.info-box--blue {
  background: rgba(0,180,255,0.05);
  border-color: var(--color-primary);
}
.info-box--cyan {
  background: rgba(0,229,192,0.05);
  border-color: var(--color-accent);
}
.info-box--gold {
  background: rgba(245,200,66,0.05);
  border-color: var(--color-gold);
}
.info-box p { color: var(--color-text); margin: 0; }

/* =============================================
   TAGS / CHIPS
   ============================================= */
.tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
  padding: 5px 12px;
  background: rgba(0,180,255,0.08);
  border: 1px solid rgba(0,180,255,0.15);
  border-radius: 20px;
  font-size: 0.78rem;
  color: var(--color-primary);
  font-weight: 500;
}

/* =============================================
   COURSE DETAIL PAGE
   ============================================= */
.course-modules { display: flex; flex-direction: column; gap: 12px; }
.course-module {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}
.module-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 22px;
  cursor: pointer;
  gap: 12px;
}
.module-num {
  width: 30px; height: 30px;
  border-radius: 50%;
  background: rgba(0,180,255,0.1);
  color: var(--color-primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  flex-shrink: 0;
}
.module-title { font-weight: 600; font-size: 0.95rem; flex: 1; }
.module-lessons {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  white-space: nowrap;
}
.module-chevron { color: var(--color-primary); transition: var(--transition); font-size: 0.9rem; }
.module-header.open .module-chevron { transform: rotate(180deg); }
.module-lessons-list {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}
.module-lessons-list.open { max-height: 400px; }
.module-lesson {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 22px;
  border-top: 1px solid var(--color-border);
  font-size: 0.875rem;
  color: var(--color-text-muted);
}
.module-lesson-icon { color: var(--color-accent); font-size: 0.8rem; }

/* =============================================
   PRICE CARDS
   ============================================= */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.pricing-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 36px;
  position: relative;
  transition: var(--transition);
}
.pricing-card--featured {
  border-color: var(--color-primary);
  box-shadow: var(--glow-blue);
}
.pricing-card--featured::before {
  content: 'ПОПУЛЯРНЫЙ';
  position: absolute;
  top: -12px; left: 50%; transform: translateX(-50%);
  background: var(--color-primary);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  padding: 4px 14px;
  border-radius: 20px;
}
.pricing-plan { font-size: 0.8rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--color-primary); margin-bottom: 12px; }
.pricing-price { font-family: var(--font-head); font-size: 3rem; font-weight: 800; color: var(--color-white); line-height: 1; margin-bottom: 6px; }
.pricing-price sup { font-size: 1.5rem; vertical-align: top; margin-top: 8px; }
.pricing-period { font-size: 0.85rem; color: var(--color-text-muted); margin-bottom: 24px; }
.pricing-features { list-style: none; display: flex; flex-direction: column; gap: 12px; margin-bottom: 32px; }
.pricing-features li {
  font-size: 0.875rem;
  color: var(--color-text);
  display: flex; align-items: center; gap: 10px;
}
.pricing-features li::before { content: '✓'; color: var(--color-accent); font-weight: 700; }

/* =============================================
   SCROLL TO TOP
   ============================================= */
.scroll-top {
  position: fixed;
  bottom: 32px; right: 32px;
  width: 46px; height: 46px;
  background: var(--color-primary);
  border: none;
  border-radius: 50%;
  color: #fff;
  font-size: 1.2rem;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--glow-blue);
  z-index: 500;
}
.scroll-top.show { opacity: 1; visibility: visible; }
.scroll-top:hover { transform: translateY(-3px); }

/* =============================================
   COOKIE BANNER
   ============================================= */
.cookie-banner {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  z-index: 9999;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: 20px 24px;
  display: none;
}
.cookie-banner.show { display: block; }
.cookie-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}
.cookie-text { font-size: 0.85rem; color: var(--color-text-muted); flex: 1; }
.cookie-text a { color: var(--color-primary); }
.cookie-actions { display: flex; gap: 10px; flex-shrink: 0; }

/* =============================================
   POLICY PAGES
   ============================================= */
.policy-content { max-width: 860px; }
.policy-content h2 { font-size: 1.5rem; margin: 40px 0 14px; color: var(--color-white); }
.policy-content h3 { font-size: 1.1rem; margin: 28px 0 10px; color: var(--color-text); }
.policy-content p  { font-size: 0.95rem; color: var(--color-text-muted); line-height: 1.8; margin-bottom: 16px; }
.policy-content ul { list-style: disc; padding-left: 22px; margin-bottom: 16px; }
.policy-content li { font-size: 0.92rem; color: var(--color-text-muted); margin-bottom: 6px; line-height: 1.6; }
.policy-content a  { color: var(--color-primary); }
.policy-last-updated {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(0,180,255,0.06);
  border: 1px solid rgba(0,180,255,0.15);
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  color: var(--color-text-muted);
  margin-bottom: 32px;
}

/* =============================================
   TWO-COLUMN LAYOUT
   ============================================= */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.two-col--reverse .col-visual { order: -1; }
.col-visual { border-radius: var(--radius-xl); overflow: hidden; box-shadow: var(--glow-blue); }
.col-visual img { width: 100%; height: 400px; object-fit: cover; }
.col-list { display: flex; flex-direction: column; gap: 16px; margin-top: 24px; }
.col-list-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}
.col-list-icon {
  width: 36px; height: 36px;
  border-radius: var(--radius-sm);
  background: rgba(0,180,255,0.1);
  color: var(--color-primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
  margin-top: 2px;
}
.col-list-text strong { display: block; color: var(--color-white); font-size: 0.95rem; margin-bottom: 3px; }
.col-list-text p { font-size: 0.85rem; margin: 0; }

/* =============================================
   UTILITIES
   ============================================= */
.mt-8  { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mt-48 { margin-top: 48px; }
.mt-64 { margin-top: 64px; }
.mb-8  { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.mb-32 { margin-bottom: 32px; }
.mb-48 { margin-bottom: 48px; }
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.gap-12 { gap: 12px; }
.gap-16 { gap: 16px; }
.gap-24 { gap: 24px; }
.w-full { width: 100%; }
.d-none { display: none; }
.bg-surface { background: var(--color-surface); }
.bg-surface-2 { background: var(--color-bg-2); border-top: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border); }

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 1100px) {
  .hero-visual { width: 380px; right: -20px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 900px) {
  .two-col { grid-template-columns: 1fr; }
  .two-col--reverse .col-visual { order: 0; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-item:nth-child(2) { border-right: none; }
  .stat-item:nth-child(3) { border-right: 1px solid var(--color-border); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero-visual { display: none; }
  .site-nav { display: none; }
  .header-cta .btn--outline { display: none; }
  .burger { display: flex; }
}
@media (max-width: 640px) {
  section { padding: 64px 0; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .form-row { grid-template-columns: 1fr; }
  .contact-form { padding: 28px 20px; }
  .pricing-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
}