/* ==========================================================================
   NuvoraTab - Dedicated Extension Landing Page Stylesheet
   Design System: High-contrast dark cyber/glassmorphism
   ========================================================================== */

.ext-hero {
  position: relative;
  padding: calc(var(--nav-height) + 3.5rem) 0 4rem;
  overflow: hidden;
}

.ext-hero-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}

@media (min-width: 992px) {
  .ext-hero-container {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 4rem;
  }
}

.browser-compatibility-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 1.75rem;
  padding: 10px 16px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  width: fit-content;
}

.browser-icons {
  display: flex;
  align-items: center;
  gap: 10px;
}

.browser-tag {
  font-size: 0.78rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
}

.ext-preview-hud {
  background: #080c16;
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.55);
  position: relative;
  overflow: hidden;
}

.ext-preview-hud::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-blue));
}

.ext-feature-matrix {
  padding: 5rem 0;
  border-top: 1px solid var(--border-subtle);
}

.matrix-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 2.5rem;
}

@media (min-width: 768px) {
  .matrix-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .matrix-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.matrix-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transition: transform var(--transition-base), border-color var(--transition-base);
}

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

.matrix-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-xs);
  background: rgba(6, 182, 212, 0.1);
  border: 1px solid rgba(6, 182, 212, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
  margin-bottom: 0.5rem;
}

.matrix-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.matrix-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Permissions Transparency Table */
.permissions-section {
  padding: 5rem 0;
  border-top: 1px solid var(--border-subtle);
}

.permissions-table-wrap {
  margin-top: 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.permissions-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.88rem;
}

.permissions-table th {
  background: rgba(255, 255, 255, 0.03);
  padding: 1rem 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-subtle);
}

.permissions-table td {
  padding: 1.15rem 1.25rem;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  vertical-align: top;
}

.permissions-table tr:last-child td {
  border-bottom: none;
}

.perm-tag {
  display: inline-block;
  padding: 3px 8px;
  background: rgba(6, 182, 212, 0.1);
  border: 1px solid rgba(6, 182, 212, 0.25);
  border-radius: var(--radius-xs);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent-cyan);
}

.perm-status {
  font-size: 0.8rem;
  color: var(--accent-emerald);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
}

/* Installation Guide */
.ext-install-section {
  padding: 5rem 0;
  border-top: 1px solid var(--border-subtle);
}

.steps-cards-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 2.5rem;
}

@media (min-width: 768px) {
  .steps-cards-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.step-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 2rem 1.5rem;
  position: relative;
}

.step-badge {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
  color: #08090c;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-family: var(--font-heading);
  margin-bottom: 1.25rem;
}

.step-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.step-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
}