.landing-page {
  font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
}

.landing-page body::before {
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(0, 212, 255, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 100% 100%, rgba(0, 255, 204, 0.05) 0%, transparent 50%),
    var(--bg-primary);
}

/* Header */
.landing-header {
  border-bottom: 1px solid rgba(0, 212, 255, 0.12);
  background: rgba(10, 15, 28, 0.92);
  backdrop-filter: blur(16px);
  position: sticky;
  top: 0;
  z-index: 100;
}

.landing-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  max-width: 1200px;
  margin: 0 auto;
}

.landing-brand {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  color: inherit;
}

.brand-mark { width: 44px; height: 44px; flex-shrink: 0; }

.brand-text { display: flex; flex-direction: column; gap: 2px; }

.brand-name {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  line-height: 1.2;
}

.brand-tagline {
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--neon-cyan);
  opacity: 0.85;
}

.landing-admin-link {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 8px 16px;
  border: 1px solid var(--border);
  border-radius: 6px;
  transition: var(--transition);
}

.landing-admin-link:hover {
  color: var(--neon-cyan);
  border-color: rgba(0, 212, 255, 0.35);
  background: rgba(0, 212, 255, 0.05);
}

/* Hero */
.landing-hero {
  padding: 64px 24px 48px;
  text-align: center;
}

.hero-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--neon-green);
  border: 1px solid rgba(0, 255, 204, 0.25);
  padding: 6px 14px;
  border-radius: 4px;
  margin-bottom: 24px;
  background: rgba(0, 255, 204, 0.06);
}

.landing-hero h1 {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: var(--text-primary);
  max-width: 720px;
  margin: 0 auto 20px;
}

.hero-lead {
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-secondary);
  max-width: 580px;
  margin: 0 auto;
}

/* Access panel */
.landing-access {
  padding: 0 24px 64px;
}

.access-panel {
  max-width: 640px;
  margin: 0 auto;
  background: rgba(17, 24, 39, 0.7);
  border: 1px solid rgba(0, 212, 255, 0.18);
  border-radius: 12px;
  padding: 36px 40px;
  backdrop-filter: blur(12px);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.25), 0 0 0 1px rgba(255,255,255,0.03) inset;
}

.access-panel-header {
  display: flex;
  gap: 16px;
  margin-bottom: 28px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}

.panel-icon {
  width: 28px;
  height: 28px;
  color: var(--neon-cyan);
  flex-shrink: 0;
  margin-top: 2px;
}

.access-panel-header h2 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
  letter-spacing: -0.02em;
}

.access-panel-header p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.access-form .form-row {
  display: grid;
  gap: 20px;
  margin-bottom: 24px;
}

#accessCode {
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-weight: 600;
  font-family: 'Consolas', 'Monaco', monospace;
}

.btn-exam {
  width: 100%;
  padding: 14px 24px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.02em;
  gap: 10px;
}

.btn-exam svg {
  width: 18px;
  height: 18px;
}

.access-notice {
  margin-top: 20px;
  font-size: 12px;
  color: var(--text-muted);
  text-align: center;
  line-height: 1.5;
}

/* Standards grid */
.landing-standards {
  padding: 64px 24px;
  border-top: 1px solid var(--border);
}

.section-head {
  text-align: center;
  margin-bottom: 48px;
}

.section-head h2 {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 10px;
}

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

.standards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  max-width: 1200px;
  margin: 0 auto;
}

.standard-card {
  background: rgba(17, 24, 39, 0.5);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 28px 24px;
  transition: var(--transition);
}

.standard-card:hover {
  border-color: rgba(0, 212, 255, 0.25);
  background: rgba(17, 24, 39, 0.75);
}

.standard-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 212, 255, 0.08);
  border: 1px solid rgba(0, 212, 255, 0.15);
  border-radius: 8px;
  margin-bottom: 18px;
}

.standard-icon svg {
  width: 22px;
  height: 22px;
  color: var(--neon-cyan);
}

.standard-card h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.standard-card p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Domains */
.landing-domains {
  padding: 0 24px 80px;
}

.domains-panel {
  max-width: 900px;
  margin: 0 auto;
  background: rgba(17, 24, 39, 0.4);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}

.domains-header {
  padding: 32px 36px 24px;
  border-bottom: 1px solid var(--border);
}

.domains-header h2 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
  letter-spacing: -0.02em;
}

.domains-header p {
  font-size: 14px;
  color: var(--text-secondary);
}

.domains-list {
  list-style: none;
  padding: 8px 0;
}

.domains-list li {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 16px 36px;
  font-size: 14px;
  color: var(--text-secondary);
  border-bottom: 1px solid rgba(255,255,255,0.04);
  transition: var(--transition);
}

.domains-list li:last-child { border-bottom: none; }

.domains-list li:hover {
  background: rgba(0, 212, 255, 0.03);
  color: var(--text-primary);
}

.domain-num {
  font-size: 12px;
  font-weight: 700;
  font-family: 'Consolas', monospace;
  color: var(--neon-cyan);
  opacity: 0.7;
  min-width: 24px;
}

/* Footer */
.landing-footer {
  border-top: 1px solid var(--border);
  background: rgba(10, 15, 28, 0.95);
  padding: 32px 24px;
}

.landing-footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.footer-mark { width: 36px; height: 36px; flex-shrink: 0; }

.footer-brand strong {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.footer-brand span {
  font-size: 12px;
  color: var(--text-muted);
}

.footer-meta {
  font-size: 12px;
  color: var(--text-muted);
}

.footer-sep {
  margin: 0 10px;
  opacity: 0.4;
}

@media (max-width: 640px) {
  .landing-header-inner { flex-direction: column; gap: 16px; align-items: flex-start; }
  .access-panel { padding: 28px 24px; }
  .domains-list li { padding: 14px 24px; }
  .landing-footer-inner { flex-direction: column; align-items: flex-start; }
  .brand-name { font-size: 14px; }
}