/* ═══════════════════════════════════════════════
   CHOICE TACTICAL — Design System
   ═══════════════════════════════════════════════ */

/* ---------- Design Tokens ---------- */
:root {
  --bg-primary: #000000;
  --bg-section-alt: #0D0D0D;
  --bg-card: #1A1A1A;
  --bg-card-hover: #222222;
  --gold: #C9A962;
  --gold-light: #D9BE7A;
  --gold-dark: #B08F4A;
  --gold-glow: rgba(201, 169, 98, 0.15);
  --text-primary: #FFFFFF;
  --text-secondary: #9E9E9E;
  --text-dim: #666666;
  --border: #333333;
  --border-light: #444444;
  --success: #4CAF50;
  --error: #E53935;
  --info: #2196F3;
  --card-radius: 12px;
  --btn-radius: 8px;
  --nav-height: 84px;
  --section-padding: 100px;
  --container-max: 1200px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--gold);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--gold-light);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ---------- Utilities ---------- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

.gold { color: var(--gold); }
.text-secondary { color: var(--text-secondary); }
.text-center { text-align: center; }

.badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.badge-gold {
  background: rgba(201, 169, 98, 0.15);
  color: var(--gold);
  border: 1px solid rgba(201, 169, 98, 0.3);
}

.badge-success {
  background: rgba(76, 175, 80, 0.15);
  color: var(--success);
  border: 1px solid rgba(76, 175, 80, 0.3);
}

.badge-info {
  background: rgba(33, 150, 243, 0.15);
  color: var(--info);
  border: 1px solid rgba(33, 150, 243, 0.3);
}

/* ---------- App Store Badge ---------- */
.app-store-badge {
  display: inline-block;
  line-height: 0;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.app-store-badge:hover {
  transform: translateY(-2px);
  opacity: 0.9;
}

.app-store-badge img {
  height: 50px;
  width: auto;
  display: block;
}

.app-store-badge-hero {
  margin-top: 28px;
}

.badge-hero {
  display: inline-block;
  margin: 8px 0 20px;
  padding: 6px 16px;
  font-size: 12px;
  letter-spacing: 1.5px;
}

.product-preview-cta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px;
  margin-top: 8px;
}

/* ---------- Typography ---------- */
.section-title {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: clamp(16px, 2vw, 20px);
  color: var(--text-secondary);
  line-height: 1.5;
  max-width: 700px;
}

.section-subtitle.centered {
  margin: 0 auto;
}

.section-label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 12px;
}

/* ---------- Sections ---------- */
.section {
  padding: var(--section-padding) 0;
}

.section-alt {
  background: var(--bg-section-alt);
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

/* ---------- Navigation ---------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: background 0.3s, border-color 0.3s;
}

.navbar.scrolled {
  background: rgba(0, 0, 0, 0.95);
  border-bottom-color: var(--border);
}

.nav-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.nav-logo-img {
  height: 48px;
  width: auto;
}

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

.nav-link {
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: var(--btn-radius);
  transition: color 0.2s, background 0.2s;
  position: relative;
}

.nav-link:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.nav-link.active {
  color: var(--gold);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 16px;
  right: 16px;
  height: 2px;
  background: var(--gold);
  border-radius: 1px;
}

/* Hamburger */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.hamburger {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  position: relative;
  transition: background 0.3s;
}

.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: transform 0.3s;
}

.hamburger::before { top: -7px; }
.hamburger::after { top: 7px; }

.nav-toggle.open .hamburger {
  background: transparent;
}

.nav-toggle.open .hamburger::before {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.open .hamburger::after {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--btn-radius);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
  border: none;
  text-decoration: none;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--gold);
  color: #000;
}

.btn-primary:hover {
  background: var(--gold-light);
  color: #000;
  box-shadow: 0 8px 24px rgba(201, 169, 98, 0.3);
}

.btn-outline {
  background: transparent;
  color: var(--gold);
  border: 1px solid var(--gold);
}

.btn-outline:hover {
  background: rgba(201, 169, 98, 0.1);
  color: var(--gold-light);
  box-shadow: 0 8px 24px rgba(201, 169, 98, 0.15);
}

.btn-sm {
  padding: 10px 20px;
  font-size: 13px;
}

.btn-arrow::after {
  content: '→';
  transition: transform 0.2s;
}

.btn-arrow:hover::after {
  transform: translateX(4px);
}

/* ---------- Cards ---------- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  padding: 28px;
  transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s;
}

.card:hover {
  border-color: var(--border-light);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}

.card-flat {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  padding: 28px;
}

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  font-size: 22px;
}

.card-icon-gold {
  background: rgba(201, 169, 98, 0.12);
  color: var(--gold);
}

.card-icon-green {
  background: rgba(76, 175, 80, 0.12);
  color: var(--success);
}

.card-icon-blue {
  background: rgba(33, 150, 243, 0.12);
  color: var(--info);
}

.card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}

.card p {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.6;
}

/* ---------- Grids ---------- */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--bg-section-alt);
  border-top: 1px solid var(--border);
  padding: 60px 0 32px;
}

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

.footer-logo {
  height: 40px;
  width: auto;
  margin-bottom: 12px;
}

.footer-tagline {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.5;
  max-width: 280px;
}

.footer-heading {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.footer-links ul {
  list-style: none;
}

.footer-links li {
  margin-bottom: 8px;
}

.footer-links a {
  color: var(--text-secondary);
  font-size: 14px;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: var(--gold);
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  text-align: center;
}

.footer-bottom p {
  color: var(--text-dim);
  font-size: 13px;
}

/* ---------- Sticky Subnav (product pages) ---------- */
.subnav {
  position: sticky;
  top: var(--nav-height);
  z-index: 900;
  background: rgba(0, 0, 0, 0.95);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.subnav-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  gap: 4px;
}

.subnav-link {
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  padding: 14px 16px;
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}

.subnav-link:hover {
  color: var(--text-primary);
}

.subnav-link.active {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

/* ---------- Screenshot Placeholders ---------- */
.screenshot-placeholder {
  background: var(--bg-card);
  border: 2px dashed var(--border);
  border-radius: var(--card-radius);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--text-dim);
  font-size: 13px;
  min-height: 200px;
  padding: 24px;
  text-align: center;
}

.screenshot-placeholder .placeholder-icon {
  font-size: 32px;
  margin-bottom: 8px;
  opacity: 0.4;
}

.screenshot-placeholder .placeholder-label {
  font-weight: 600;
  margin-bottom: 4px;
  color: var(--text-secondary);
}

/* Screenshot card (for gallery and inline) */
.screenshot-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  overflow: hidden;
  cursor: pointer;
  transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s;
}

.screenshot-card:hover {
  border-color: var(--gold-dark);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}

.screenshot-card img {
  width: 100%;
  aspect-ratio: 9 / 16;
  object-fit: cover;
  background: var(--bg-section-alt);
}

.screenshot-card .screenshot-info {
  padding: 14px 16px;
}

.screenshot-card .screenshot-title {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 4px;
}

.screenshot-card .screenshot-desc {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.4;
  margin-bottom: 8px;
}

.screenshot-card .screenshot-tag {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 4px;
  background: rgba(201, 169, 98, 0.1);
  color: var(--gold);
}

/* ---------- Filter Bar ---------- */
.filter-bar {
  display: flex;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.filter-btn {
  padding: 8px 20px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: transparent;
  color: var(--text-secondary);
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.filter-btn:hover {
  border-color: var(--gold-dark);
  color: var(--gold);
}

.filter-btn.active {
  background: rgba(201, 169, 98, 0.15);
  border-color: var(--gold);
  color: var(--gold);
}

/* ---------- Gallery Grid ---------- */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.screenshot-card-placeholder {
  cursor: default;
}

.screenshot-card-placeholder:hover {
  transform: none;
  box-shadow: none;
  border-color: var(--border);
}

/* ---------- Lightbox Modal ---------- */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0, 0, 0, 0.95);
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.lightbox.open {
  display: flex;
}

.lightbox-content {
  max-width: 500px;
  max-height: 90vh;
  position: relative;
}

.lightbox-content img {
  max-height: 80vh;
  border-radius: 8px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.lightbox-caption {
  text-align: center;
  padding: 16px 0;
}

.lightbox-caption .screenshot-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}

.lightbox-caption .screenshot-desc {
  font-size: 14px;
  color: var(--text-secondary);
}

.lightbox-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: rgba(255, 255, 255, 0.1);
  border: none;
  color: var(--text-primary);
  font-size: 24px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
  z-index: 2001;
}

.lightbox-close:hover {
  background: rgba(255, 255, 255, 0.2);
}

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.1);
  border: none;
  color: var(--text-primary);
  font-size: 24px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
}

.lightbox-nav:hover {
  background: rgba(255, 255, 255, 0.2);
}

.lightbox-prev { left: 16px; }
.lightbox-next { right: 16px; }

/* ---------- Expandable Sections ---------- */
.expandable {
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  margin-bottom: 8px;
  overflow: hidden;
}

.expandable-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  cursor: pointer;
  background: var(--bg-card);
  transition: background 0.2s;
}

.expandable-header:hover {
  background: var(--bg-card-hover);
}

.expandable-header h3 {
  font-size: 16px;
  font-weight: 600;
}

.expandable-toggle {
  color: var(--text-secondary);
  font-size: 18px;
  transition: transform 0.3s;
}

.expandable.open .expandable-toggle {
  transform: rotate(180deg);
}

.expandable-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.expandable.open .expandable-body {
  max-height: 2000px;
}

.expandable-content {
  padding: 0 24px 24px;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.7;
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  :root {
    --nav-height: 56px;
    --section-padding: 72px;
  }

  .nav-logo-img { height: 36px; }

  .nav-toggle { display: block; }

  .nav-links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.98);
    flex-direction: column;
    padding: 16px 24px;
    gap: 4px;
    border-bottom: 1px solid var(--border);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.3s, opacity 0.3s;
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-link {
    padding: 12px 16px;
    font-size: 16px;
  }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .section-title {
    font-size: clamp(24px, 5vw, 32px);
  }

  .gallery-grid {
    grid-template-columns: 1fr;
    max-width: 360px;
    margin: 0 auto;
  }

  .filter-bar {
    gap: 6px;
  }

  .filter-btn {
    padding: 6px 14px;
    font-size: 12px;
  }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .card { padding: 20px; }
  .btn { padding: 12px 24px; font-size: 14px; }
}