/* AIEarningLab — Dark AI Lab Theme */
:root {
  --bg-primary: #0D1117;
  --bg-panel: #161B22;
  --bg-panel-hover: #1C2128;
  --bg-border: #30363D;
  --text-primary: #E6EDF3;
  --text-secondary: #8B949E;
  --text-muted: #6E7681;
  --accent-cyan: #22D3EE;
  --accent-green: #4ADE80;
  --accent-cyan-dim: rgba(34, 211, 238, 0.15);
  --accent-green-dim: rgba(74, 222, 128, 0.15);
  --font-mono: 'JetBrains Mono', monospace;
  --font-sans: 'IBM Plex Sans', sans-serif;
  --radius: 8px;
  --radius-lg: 12px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
  --transition: 0.2s ease;
  --max-width: 1200px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  font-size: 16px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 0%, rgba(34, 211, 238, 0.06) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 100%, rgba(74, 222, 128, 0.04) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent-cyan); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent-green); }

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* Trust Bar */
.trust-bar {
  background: var(--bg-panel);
  border-bottom: 1px solid var(--bg-border);
  padding: 8px 0;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-secondary);
}

.trust-bar .container {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 32px;
  justify-content: center;
  align-items: center;
}

.trust-bar span { display: flex; align-items: center; gap: 6px; }
.trust-bar .dot { color: var(--accent-green); }

/* Header */
.site-header {
  background: rgba(13, 17, 23, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--bg-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-primary);
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-green));
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 14px;
  color: var(--bg-primary);
}

.logo-text {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.5px;
}

.logo-text span { color: var(--accent-cyan); }

.main-nav ul {
  display: flex;
  list-style: none;
  gap: 8px;
}

.main-nav a {
  color: var(--text-secondary);
  padding: 8px 14px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 500;
  transition: all var(--transition);
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--accent-cyan);
  background: var(--accent-cyan-dim);
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--bg-border);
  color: var(--text-primary);
  padding: 8px 12px;
  border-radius: var(--radius);
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 14px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius);
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-cyan), #06B6D4);
  color: var(--bg-primary);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(34, 211, 238, 0.3);
  color: var(--bg-primary);
}

.btn-secondary {
  background: transparent;
  border: 1px solid var(--accent-cyan);
  color: var(--accent-cyan);
}

.btn-secondary:hover {
  background: var(--accent-cyan-dim);
  color: var(--accent-cyan);
}

.btn-green {
  background: var(--accent-green);
  color: var(--bg-primary);
}

.btn-green:hover {
  background: #22C55E;
  color: var(--bg-primary);
}

/* Hero */
.hero {
  padding: 64px 0 80px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.hero-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent-green);
  background: var(--accent-green-dim);
  padding: 6px 12px;
  border-radius: 20px;
  border: 1px solid rgba(74, 222, 128, 0.3);
  margin-bottom: 20px;
}

.hero h1 {
  font-size: clamp(2rem, 4vw, 2.75rem);
  line-height: 1.2;
  margin-bottom: 20px;
  font-weight: 700;
}

.hero h1 .highlight {
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-green));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-lead {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 32px;
  max-width: 540px;
}

.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

.hero-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--bg-border);
  box-shadow: var(--shadow);
}

.hero-image img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }

.hero-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(34, 211, 238, 0.1) 0%, transparent 60%);
  pointer-events: none;
}

/* Domain Callout */
.domain-callout {
  background: var(--bg-panel);
  border: 1px solid var(--bg-border);
  border-left: 3px solid var(--accent-cyan);
  padding: 20px 24px;
  border-radius: var(--radius);
  margin: 48px 0;
  font-family: var(--font-mono);
  font-size: 14px;
}

.domain-callout code { color: var(--accent-cyan); }

/* Stats */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin: 48px 0;
}

.stat-card {
  background: var(--bg-panel);
  border: 1px solid var(--bg-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  text-align: center;
  transition: border-color var(--transition);
}

.stat-card:hover { border-color: var(--accent-cyan); }

.stat-number {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent-cyan);
  display: block;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 13px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Cards */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  margin: 32px 0;
}

.card {
  background: var(--bg-panel);
  border: 1px solid var(--bg-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all var(--transition);
}

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

.card-icon {
  width: 48px;
  height: 48px;
  background: var(--accent-cyan-dim);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 20px;
  color: var(--accent-cyan);
  margin-bottom: 16px;
}

.card h3 {
  font-size: 18px;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.card p { color: var(--text-secondary); font-size: 15px; }

/* Sections */
.section {
  padding: 64px 0;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 48px;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent-green);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 12px;
  display: block;
}

.section-header h2 {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  margin-bottom: 16px;
}

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

.section-alt { background: var(--bg-panel); border-y: 1px solid var(--bg-border); }

/* Steps */
.steps-list {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  counter-reset: step;
}

.step-item {
  background: var(--bg-panel);
  border: 1px solid var(--bg-border);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  position: relative;
  counter-increment: step;
}

.step-item::before {
  content: counter(step, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 700;
  color: var(--accent-cyan);
  display: block;
  margin-bottom: 12px;
}

.step-item h3 { font-size: 15px; margin-bottom: 8px; }
.step-item p { font-size: 13px; color: var(--text-secondary); }

/* Programs */
.program-card {
  background: var(--bg-panel);
  border: 1px solid var(--bg-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
}

.program-card:hover { border-color: var(--accent-green); }

.program-card img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
}

.program-card-body { padding: 24px; }

.program-card h3 { font-size: 18px; margin-bottom: 12px; }
.program-card p { color: var(--text-secondary); font-size: 14px; margin-bottom: 16px; }

.program-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent-green);
  background: var(--accent-green-dim);
  padding: 4px 10px;
  border-radius: 4px;
}

/* FAQ */
.faq-list { max-width: 800px; margin: 0 auto; }

.faq-item {
  background: var(--bg-panel);
  border: 1px solid var(--bg-border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
}

.faq-question {
  width: 100%;
  background: none;
  border: none;
  color: var(--text-primary);
  padding: 20px 24px;
  text-align: left;
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  transition: background var(--transition);
}

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

.faq-question::after {
  content: '+';
  font-family: var(--font-mono);
  font-size: 20px;
  color: var(--accent-cyan);
  flex-shrink: 0;
  transition: transform var(--transition);
}

.faq-item.open .faq-question::after { transform: rotate(45deg); }

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-item.open .faq-answer { max-height: 600px; }

.faq-answer-inner {
  padding: 0 24px 20px;
  color: var(--text-secondary);
  font-size: 15px;
}

/* Disclaimer */
.disclaimer {
  background: var(--bg-panel);
  border: 1px solid var(--bg-border);
  border-left: 3px solid var(--accent-green);
  padding: 20px 24px;
  border-radius: var(--radius);
  margin: 32px 0;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.disclaimer strong {
  color: var(--text-primary);
  display: block;
  margin-bottom: 8px;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* CTA Block */
.cta-block {
  background: linear-gradient(135deg, rgba(34, 211, 238, 0.1), rgba(74, 222, 128, 0.08));
  border: 1px solid var(--bg-border);
  border-radius: var(--radius-lg);
  padding: 48px;
  text-align: center;
  margin: 48px 0;
}

.cta-block h2 { font-size: 1.75rem; margin-bottom: 16px; }
.cta-block p { color: var(--text-secondary); margin-bottom: 24px; max-width: 560px; margin-left: auto; margin-right: auto; }

/* Page Header */
.page-header {
  padding: 48px 0 32px;
  border-bottom: 1px solid var(--bg-border);
  margin-bottom: 48px;
}

.page-header h1 { font-size: clamp(1.75rem, 3vw, 2.5rem); margin-bottom: 12px; }
.page-header p { color: var(--text-secondary); max-width: 640px; }

/* Content */
.content-block { max-width: 800px; }
.content-block h2 { font-size: 1.5rem; margin: 32px 0 16px; color: var(--accent-cyan); }
.content-block h3 { font-size: 1.2rem; margin: 24px 0 12px; }
.content-block p { margin-bottom: 16px; color: var(--text-secondary); }
.content-block ul, .content-block ol { margin: 16px 0 16px 24px; color: var(--text-secondary); }
.content-block li { margin-bottom: 8px; }

.content-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--bg-border);
  margin: 32px 0;
}

.content-image img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
.content-image figcaption {
  padding: 12px 16px;
  background: var(--bg-panel);
  font-size: 13px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.content-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: start;
  margin: 32px 0;
}

/* Contact Form */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.contact-info { display: flex; flex-direction: column; gap: 24px; }

.contact-item {
  background: var(--bg-panel);
  border: 1px solid var(--bg-border);
  border-radius: var(--radius);
  padding: 20px;
}

.contact-item h3 {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent-cyan);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}

.form-panel {
  background: var(--bg-panel);
  border: 1px solid var(--bg-border);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.form-group { margin-bottom: 20px; }

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-primary);
  border: 1px solid var(--bg-border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 15px;
  transition: border-color var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--accent-cyan);
}

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

.form-check {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 20px;
}

.form-check input[type="checkbox"] {
  width: 18px;
  height: 18px;
  margin-top: 3px;
  accent-color: var(--accent-cyan);
  flex-shrink: 0;
}

.form-check label { font-size: 14px; color: var(--text-secondary); }

.hp-field { position: absolute; left: -9999px; opacity: 0; height: 0; overflow: hidden; }

.alert {
  padding: 16px 20px;
  border-radius: var(--radius);
  margin-bottom: 24px;
  font-size: 15px;
}

.alert-success {
  background: var(--accent-green-dim);
  border: 1px solid rgba(74, 222, 128, 0.3);
  color: var(--accent-green);
}

.alert-error {
  background: rgba(248, 81, 73, 0.15);
  border: 1px solid rgba(248, 81, 73, 0.3);
  color: #F85149;
}

/* Services */
.service-card {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 24px;
  background: var(--bg-panel);
  border: 1px solid var(--bg-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 24px;
  transition: border-color var(--transition);
}

.service-card:hover { border-color: var(--accent-cyan); }

.service-card img {
  width: 100%;
  height: 100%;
  min-height: 160px;
  object-fit: cover;
}

.service-card-body { padding: 24px; }
.service-card h3 { font-size: 18px; margin-bottom: 12px; }
.service-card p { color: var(--text-secondary); font-size: 15px; }

/* Legal */
.legal-content { max-width: 800px; }
.legal-content h2 { font-size: 1.35rem; margin: 40px 0 16px; color: var(--accent-cyan); }
.legal-content h3 { font-size: 1.1rem; margin: 24px 0 12px; }
.legal-content p { margin-bottom: 16px; color: var(--text-secondary); }
.legal-content ul { margin: 12px 0 16px 24px; color: var(--text-secondary); }
.legal-content li { margin-bottom: 6px; }

.legal-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 32px;
}

.legal-nav a {
  padding: 8px 16px;
  background: var(--bg-panel);
  border: 1px solid var(--bg-border);
  border-radius: var(--radius);
  font-size: 14px;
  color: var(--text-secondary);
}

.legal-nav a:hover,
.legal-nav a.active {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

/* 404 */
.error-page {
  text-align: center;
  padding: 80px 0;
  min-height: 50vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.error-code {
  font-family: var(--font-mono);
  font-size: 6rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-green));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 16px;
}

.error-page h1 { font-size: 1.75rem; margin-bottom: 16px; }
.error-page p { color: var(--text-secondary); margin-bottom: 32px; max-width: 480px; }

/* Footer */
.site-footer {
  background: var(--bg-panel);
  border-top: 1px solid var(--bg-border);
  margin-top: auto;
  padding: 48px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 14px;
  margin: 16px 0;
  max-width: 320px;
}

.footer-col h4 {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent-cyan);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 16px;
}

.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 8px; }
.footer-col a { color: var(--text-secondary); font-size: 14px; }
.footer-col a:hover { color: var(--accent-green); }

.footer-bottom {
  border-top: 1px solid var(--bg-border);
  padding-top: 24px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 16px;
  font-size: 13px;
  color: var(--text-muted);
}

.footer-disclaimer {
  width: 100%;
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 16px;
  padding: 16px;
  background: var(--bg-primary);
  border-radius: var(--radius);
  border: 1px solid var(--bg-border);
}

/* Cookie Banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--bg-panel);
  border-top: 1px solid var(--bg-border);
  padding: 24px;
  z-index: 1000;
  box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.5);
  transform: translateY(100%);
  transition: transform 0.3s ease;
}

.cookie-banner.visible { transform: translateY(0); }

.cookie-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 24px;
}

.cookie-text { flex: 1; min-width: 280px; }
.cookie-text h3 { font-size: 16px; margin-bottom: 8px; }
.cookie-text p { font-size: 14px; color: var(--text-secondary); }

.cookie-actions { display: flex; gap: 12px; flex-wrap: wrap; }

.cookie-settings {
  display: none;
  width: 100%;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--bg-border);
}

.cookie-settings.visible { display: block; }

.cookie-option {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid var(--bg-border);
}

.cookie-option label { font-size: 14px; }
.cookie-option span { font-size: 13px; color: var(--text-muted); }

.cookie-option input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--accent-cyan);
}

/* Two-column image section */
.image-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: center;
  margin: 48px 0;
}

.image-section.reverse { direction: rtl; }
.image-section.reverse > * { direction: ltr; }

.panel-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--bg-border);
}

.panel-image img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }

/* Responsive */
@media (max-width: 992px) {
  .hero-grid,
  .contact-grid,
  .content-grid,
  .image-section,
  .footer-grid { grid-template-columns: 1fr; }

  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-list { grid-template-columns: repeat(2, 1fr); }
  .service-card { grid-template-columns: 1fr; }
  .image-section.reverse { direction: ltr; }
}

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

  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-panel);
    border-bottom: 1px solid var(--bg-border);
    padding: 16px;
  }

  .main-nav.open { display: block; }
  .main-nav ul { flex-direction: column; }

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

  .hero { padding: 40px 0 56px; }
  .section { padding: 40px 0; }
  .cta-block { padding: 32px 24px; }
  .footer-grid { grid-template-columns: 1fr; }
}