/* ============================================================
   TechSpecsHub - Global Stylesheet
   Dark navy theme with cyan/electric accent colors
   Tailwind CDN provides utility classes; this file adds components
   ============================================================ */

:root {
  --navy-950: #0a1628;
  --navy-900: #0f1d32;
  --navy-800: #162544;
  --navy-700: #1e3259;
  --electric-400: #22d3ee;
  --electric-500: #06b6d4;
  --electric-600: #0891b2;
  --green-400: #4ade80;
  --red-400: #f87171;
  --yellow-400: #fbbf24;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
}

/* ---------- Body defaults (in case Tailwind is slow) ---------- */
body {
  background: var(--navy-950);
  color: #ffffff;
  font-family: 'Space Grotesk', system-ui, sans-serif;
  min-height: 100vh;
}

/* ---------- Header ---------- */
header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: rgba(10, 22, 40, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

/* ---------- Navigation dropdown ---------- */
.nav-dropdown-trigger {
  position: relative;
}

.nav-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 260px;
  margin-top: 8px;
  padding: 8px;
  background-color: var(--navy-900);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
}

.nav-dropdown-trigger:hover .nav-dropdown,
.nav-dropdown-trigger:focus-within .nav-dropdown,
.nav-dropdown-trigger.is-open .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-dropdown a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: 8px;
  color: #e5e7eb;
  font-size: 14px;
  text-decoration: none;
  transition: background-color 0.15s ease;
}

.nav-dropdown a:hover {
  background-color: rgba(255, 255, 255, 0.06);
  color: var(--electric-400);
}

.nav-dropdown-section-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--gray-400);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 6px 12px 4px;
}

/* ---------- Search Modal ---------- */
#search-modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: none;
}

#search-modal.is-open {
  display: block;
}

#search-backdrop {
  position: absolute;
  inset: 0;
  background-color: rgba(10, 22, 40, 0.85);
  backdrop-filter: blur(4px);
}

#search-modal .modal-inner {
  position: relative;
  min-height: 100vh;
  padding-top: 80px;
  display: flex;
  justify-content: center;
}

#search-modal .modal-box {
  width: 100%;
  max-width: 640px;
  margin: 0 16px;
  background-color: var(--navy-900);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  max-height: 70vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

#search-modal input {
  width: 100%;
  padding: 16px;
  background: transparent;
  border: none;
  outline: none;
  color: #e5e7eb;
  font-size: 16px;
}

#search-modal input::placeholder {
  color: var(--gray-500);
}

#search-results-list {
  flex: 1;
  overflow-y: auto;
  padding: 8px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.search-result-item {
  display: block;
  padding: 12px 16px;
  border-radius: 10px;
  color: #e5e7eb;
  text-decoration: none;
  transition: background-color 0.15s ease;
}

.search-result-item:hover {
  background-color: rgba(255, 255, 255, 0.05);
}

.search-result-title {
  font-weight: 600;
  font-size: 14px;
  color: #fff;
  margin-bottom: 2px;
}

.search-result-desc {
  font-size: 13px;
  color: var(--gray-400);
}

.search-result-empty {
  padding: 24px;
  text-align: center;
  color: var(--gray-500);
  font-size: 14px;
}

/* ---------- Mobile menu ---------- */
#mobile-menu {
  display: none;
}

#mobile-menu.is-open {
  display: block;
}

/* ---------- Badges ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  line-height: 1.4;
}

.badge-lfp {
  background-color: rgba(132, 204, 22, 0.15);
  color: #84cc16;
  border: 1px solid rgba(132, 204, 22, 0.35);
}

.badge-info {
  background-color: rgba(34, 211, 238, 0.15);
  color: #22d3ee;
  border: 1px solid rgba(34, 211, 238, 0.35);
}

.badge-ok {
  background-color: rgba(251, 191, 36, 0.18);
  color: #fbbf24;
  border: 1px solid rgba(251, 191, 36, 0.4);
}

.badge-critical {
  background-color: rgba(248, 113, 113, 0.15);
  color: #f87171;
  border: 1px solid rgba(248, 113, 113, 0.35);
}

.badge-warning {
  background-color: rgba(251, 191, 36, 0.15);
  color: #fbbf24;
  border: 1px solid rgba(251, 191, 36, 0.35);
}

/* ---------- Glass card ---------- */
.glass-card {
  background: linear-gradient(145deg, rgba(30, 50, 89, 0.4), rgba(22, 37, 68, 0.6));
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  box-shadow: 0 10px 40px rgba(6, 12, 24, 0.3);
}

/* ---------- Specs table ---------- */
.specs-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.specs-table thead th {
  background-color: rgba(22, 37, 68, 0.8);
  color: #e5e7eb;
  font-weight: 600;
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.specs-table tbody td {
  padding: 12px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  color: #e5e7eb;
  font-size: 14px;
}

.specs-table tbody tr:nth-child(even) {
  background-color: rgba(255, 255, 255, 0.02);
}

.specs-table tbody tr:hover {
  background-color: rgba(255, 255, 255, 0.04);
}

/* ---------- Breadcrumb ---------- */
.breadcrumb {
  font-size: 13px;
  color: var(--gray-400);
}

.breadcrumb a {
  color: var(--gray-400);
  text-decoration: none;
  transition: color 0.15s ease;
}

.breadcrumb a:hover {
  color: var(--electric-400);
}

.breadcrumb-sep {
  margin: 0 8px;
  color: var(--gray-500);
}

.breadcrumb-current {
  color: #e5e7eb;
  font-weight: 500;
}

/* ---------- Alert boxes ---------- */
.alert {
  padding: 16px;
  border-radius: 12px;
  margin-bottom: 16px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.alert-warning {
  background-color: rgba(251, 191, 36, 0.1);
  border: 1px solid rgba(251, 191, 36, 0.3);
  color: #fde68a;
}

.alert-info {
  background-color: rgba(34, 211, 238, 0.1);
  border: 1px solid rgba(34, 211, 238, 0.3);
  color: #a5f3fc;
}

.alert-success {
  background-color: rgba(74, 222, 128, 0.1);
  border: 1px solid rgba(74, 222, 128, 0.3);
  color: #bbf7d0;
}

.alert-critical {
  background-color: rgba(248, 113, 113, 0.1);
  border: 1px solid rgba(248, 113, 113, 0.3);
  color: #fecaca;
}

/* ---------- Gradient text ---------- */
.gradient-text {
  background: linear-gradient(90deg, #22d3ee 0%, #818cf8 50%, #4ade80 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ---------- Step number (for troubleshooting pages) ---------- */
.step-number {
  width: 32px;
  height: 32px;
  min-width: 32px;
  flex-shrink: 0;
}

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
  .specs-table {
    font-size: 13px;
  }
  .specs-table thead th,
  .specs-table tbody td {
    padding: 10px 12px;
  }
}

/* ---------- Smooth scroll ---------- */
html {
  scroll-behavior: smooth;
}

/* ---------- Custom scrollbar ---------- */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
::-webkit-scrollbar-track {
  background: var(--navy-950);
}
::-webkit-scrollbar-thumb {
  background: var(--navy-700);
  border-radius: 5px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--navy-800);
}