/* ============================================================
   PGX Framework — Components
   Nav · Footer · Breadcrumb · SubNav · Cards · Placeholders
   Gallery · Code Tabs · Filters · Badges · WIP · Lang Switch
   ============================================================ */

/* ===== NAVIGATION ===== */
.nav {
  position: fixed; top: 0; left: 0; right: 0;
  height: var(--nav-height);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 clamp(16px, 4vw, 48px);
  background: var(--bg-glass);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-glass);
  z-index: 1000;
  transition: background 0.3s;
}

.nav-logo {
  font-size: 1.4rem; font-weight: 800; letter-spacing: -0.5px;
  background: var(--fw-gradient);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
  display: flex; align-items: center; gap: 8px;
}

.nav-logo-icon {
  width: 28px; height: 28px;
  object-fit: contain;
  filter: drop-shadow(0 0 6px rgba(127, 0, 255, 0.4));
  transition: filter 0.3s, transform 0.3s;
}

.nav-logo:hover .nav-logo-icon {
  filter: drop-shadow(0 0 12px rgba(127, 0, 255, 0.6)) drop-shadow(0 0 20px rgba(0, 188, 212, 0.3));
  transform: rotate(-8deg) scale(1.1);
}

.nav-logo .version {
  font-size: 0.65rem; font-weight: 500;
  padding: 2px 8px;
  border-radius: 99px;
  background: color-mix(in srgb, var(--fw-primary) 20%, transparent);
  -webkit-text-fill-color: var(--fw-primary);
  margin-left: 8px;
  vertical-align: middle;
}

.nav-links {
  display: flex; gap: 24px; align-items: center;
  list-style: none; margin: 0; padding: 0;
}

.nav-links li {
  display: flex; align-items: center;
}

.nav-links a {
  font-size: 0.875rem; font-weight: 500;
  color: var(--text-secondary);
  position: relative; padding-bottom: 4px;
  transition: color 0.2s;
}

.nav-links a::after {
  content: ''; position: absolute; bottom: 0; left: 0;
  width: 0; height: 2px;
  background: var(--fw-gradient);
  transition: width 0.3s ease;
}

.nav-links a:hover, .nav-links a.active {
  color: var(--text-primary);
}

.nav-links a.active::after, .nav-links a:hover::after { width: 100%; }

/* Nav Dropdowns */
.nav-dropdown { position: relative; }

.nav-dropdown > a {
  display: flex; align-items: center; gap: 4px;
}

.dropdown-arrow {
  font-size: 0.65rem;
  transition: transform 0.2s;
}

.nav-dropdown-content {
  position: absolute; top: calc(100% + 12px); left: 50%;
  transform: translateX(-50%);
  min-width: 200px;
  background: var(--bg-surface);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 8px 0;
  opacity: 0;
  visibility: hidden;
  transform: translateX(-50%) translateY(8px);
  transition: opacity 0.2s, transform 0.2s, visibility 0.2s;
  box-shadow: var(--shadow-card);
  z-index: 100;
}

.nav-dropdown:hover .nav-dropdown-content,
.nav-dropdown.open .nav-dropdown-content {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.nav-dropdown:hover .dropdown-arrow,
.nav-dropdown.open .dropdown-arrow {
  transform: rotate(180deg);
}

.nav-dropdown-content a {
  display: block;
  padding: 8px 20px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  transition: background 0.15s, color 0.15s;
}

.nav-dropdown-content a::after { display: none; }

.nav-dropdown-content a:hover {
  background: color-mix(in srgb, var(--fw-primary) 8%, transparent);
  color: var(--text-primary);
}

/* Hamburger */
.nav-hamburger {
  display: none; cursor: pointer;
  flex-direction: column; gap: 5px;
}

.nav-hamburger span {
  width: 24px; height: 2px;
  background: var(--text-secondary);
  transition: transform 0.3s, opacity 0.3s;
}

/* Language Switcher */
.lang-switch a {
  padding: 4px 12px;
  border-radius: 99px;
  border: 1px solid var(--border-glass);
  font-size: 0.75rem; font-weight: 600;
  letter-spacing: 0.5px;
  transition: border-color 0.2s, background 0.2s;
}

.lang-switch a:hover {
  border-color: var(--fw-primary);
  background: color-mix(in srgb, var(--fw-primary) 10%, transparent);
}

.lang-switch a::after { display: none; }

/* ===== BREADCRUMB ===== */
.breadcrumb {
  padding: calc(var(--nav-height) + 20px) 0 0;
}

.breadcrumb-inner {
  display: flex; align-items: center; gap: 8px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.breadcrumb-inner a {
  color: var(--text-muted);
  transition: color 0.2s;
}

.breadcrumb-inner a:hover { color: var(--text-primary); }

.breadcrumb-sep { color: var(--text-muted); opacity: 0.5; }

.breadcrumb-current {
  color: var(--fw-secondary);
  font-weight: 500;
}

/* ===== SUB-NAV (Core section tabs) ===== */
.sub-nav {
  position: sticky; top: var(--nav-height);
  background: var(--bg-glass);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-glass);
  z-index: 99;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.sub-nav .container {
  display: flex; gap: 0;
  white-space: nowrap;
}

.sub-nav a {
  padding: 14px 20px;
  font-size: 0.85rem; font-weight: 500;
  color: var(--text-secondary);
  border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s;
  flex-shrink: 0;
}

.sub-nav a:hover {
  color: var(--text-primary);
}

.sub-nav a.active {
  color: var(--fw-secondary);
  border-bottom-color: var(--fw-secondary);
}

/* ===== FOOTER ===== */
.footer {
  border-top: 1px solid var(--border-glass);
  padding: 60px 0 32px;
}

.footer-line {
  height: 1px;
  background: var(--fw-gradient);
  opacity: 0.3;
  margin-bottom: 40px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  margin-bottom: 40px;
}

.footer-col h4 {
  font-size: 0.85rem; font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.footer-col a {
  display: block;
  font-size: 0.85rem;
  color: var(--text-secondary);
  padding: 4px 0;
  transition: color 0.2s;
}

.footer-col a:hover { color: var(--text-primary); }

.footer-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-top: 4px;
}

.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 16px;
  padding-top: 24px;
  border-top: 1px solid var(--border-glass);
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-bottom .highlight {
  background: var(--fw-gradient);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 600;
}

.footer-brand-icon {
  width: 22px; height: 22px;
  object-fit: contain;
  vertical-align: middle;
  margin-right: 8px;
  filter: drop-shadow(0 0 4px rgba(127, 0, 255, 0.3));
  opacity: 0.8;
  transition: opacity 0.3s, filter 0.3s;
}

.footer-bottom:hover .footer-brand-icon {
  opacity: 1;
  filter: drop-shadow(0 0 8px rgba(127, 0, 255, 0.5));
}

/* Legacy footer (for backward compat during migration) */
.footer-inner {
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 16px;
}

.footer-links { display: flex; gap: 24px; }
.footer-links a { font-size: 0.85rem; color: var(--text-secondary); }
.footer-links a:hover { color: var(--text-primary); }

.footer-brand {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-brand .highlight {
  background: var(--fw-gradient);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 600;
}

/* ===== GLASS CARDS ===== */
.glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}

.glass-card:hover {
  transform: translateY(-4px);
  border-color: var(--fw-primary);
  box-shadow: 0 0 30px color-mix(in srgb, var(--fw-primary) 15%, transparent);
}

/* ===== STAT CARDS ===== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.stat-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}

.stat-card:hover {
  transform: translateY(-4px);
  border-color: var(--fw-primary);
  box-shadow: var(--shadow-glow);
}

.stat-number {
  font-size: 2.8rem;
  font-weight: 800;
  background: var(--fw-gradient);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 8px;
}

.stat-number .suffix {
  font-size: 1.4rem;
  -webkit-text-fill-color: var(--fw-secondary);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* ===== SYSTEM CARDS ===== */
.systems-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.system-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-glass);
  border-left: 4px solid var(--card-color, var(--fw-primary));
  border-radius: var(--radius-md);
  padding: 22px 18px;
  transition: transform 0.3s, box-shadow 0.3s;
}

.system-card:hover {
  transform: scale(1.02);
  box-shadow: 0 0 25px color-mix(in srgb, var(--card-color, var(--fw-primary)) 30%, transparent);
}

.system-card-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 12px;
}

.system-card-header h4 { font-size: 0.95rem; font-weight: 700; }

.version-pill {
  font-size: 0.65rem; font-weight: 600;
  padding: 2px 8px;
  border-radius: 99px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-secondary);
}

.system-card ul { margin-bottom: 12px; }

.system-card li {
  font-size: 0.8rem;
  color: var(--text-secondary);
  padding: 2px 0;
}

.system-card li::before {
  content: '\2022';
  color: var(--card-color, var(--fw-primary));
  margin-right: 6px;
  font-weight: 700;
}

.system-card code {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent-cyan);
  background: rgba(0, 188, 212, 0.06);
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  overflow-x: auto;
  white-space: nowrap;
}

/* ===== FRAMEWORK SHOWCASE CARDS (Home 3x3 grid) ===== */
.fw-showcase-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.fw-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
}

.fw-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 8px 40px color-mix(in srgb, var(--card-accent, var(--fw-primary)) 20%, transparent);
  border-color: var(--card-accent, var(--fw-primary));
}

.fw-card-accent {
  height: 4px;
  background: linear-gradient(90deg, var(--card-accent, var(--fw-primary)), var(--card-accent-2, var(--fw-secondary)));
}

.fw-card-body {
  padding: 24px 20px;
}

.fw-card-body h3 {
  font-size: 1.1rem; font-weight: 700;
  margin-bottom: 6px;
}

.fw-card-body .fw-tagline {
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.5;
}

.fw-card-body .btn-sm {
  color: var(--card-accent, var(--fw-primary));
  border-color: var(--card-accent, var(--fw-primary));
}

.fw-card-body .btn-sm:hover {
  background: color-mix(in srgb, var(--card-accent, var(--fw-primary)) 10%, transparent);
}

/* ===== COMING SOON BADGE (Framework Cards) ===== */
.fw-card-coming-soon {
  display: inline-block;
  font-size: 0.65rem; font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 3px 10px;
  border-radius: 99px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-muted);
  margin-bottom: 12px;
}

/* ===== COMING SOON HERO (Satellite landing pages) ===== */
.coming-soon-hero {
  text-align: center;
  padding: 60px 24px;
  margin: 0 auto;
  max-width: 700px;
}

.coming-soon-hero .coming-soon-title {
  font-size: 2.5rem; font-weight: 800;
  background: var(--fw-gradient);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 16px;
}

.coming-soon-hero p {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 12px;
}

.coming-soon-hero .coming-soon-note {
  font-size: 0.85rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border-glass);
  padding-top: 20px;
  margin-top: 24px;
}

/* ===== ENGINE VERSION NOTE ===== */
.engine-note {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ===== PLACEHOLDER IMAGES ===== */
.placeholder-img {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-glass);
  background:
    linear-gradient(135deg,
      color-mix(in srgb, var(--fw-primary) 8%, var(--bg-surface)),
      color-mix(in srgb, var(--fw-secondary) 6%, var(--bg-surface))
    );
  display: flex;
  align-items: center;
  justify-content: center;
}

.placeholder-img::before {
  content: '';
  position: absolute; inset: 0;
  background-image:
    linear-gradient(color-mix(in srgb, var(--fw-primary) 4%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--fw-primary) 4%, transparent) 1px, transparent 1px);
  background-size: 30px 30px;
  opacity: 0.5;
}

.placeholder-img::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.03), transparent);
  animation: placeholderShimmer 3s ease-in-out infinite;
}

.placeholder-label {
  position: relative; z-index: 1;
  font-size: 0.85rem; font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.5px;
  text-align: center;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  background: rgba(0, 0, 0, 0.3);
}

/* Aspect ratios */
.placeholder-img--16x9 { aspect-ratio: 16/9; }
.placeholder-img--21x9 { aspect-ratio: 21/9; }
.placeholder-img--4x3  { aspect-ratio: 4/3; }
.placeholder-img--1x1  { aspect-ratio: 1/1; }

/* ===== WIP IMAGE WRAPPER ===== */
.wip-img-wrap {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-glass);
  transition: border-color 0.3s;
}

.wip-img-wrap:hover {
  border-color: var(--border-hover);
}

.wip-img-wrap img {
  width: 100%; display: block;
}

.wip-badge {
  position: absolute; top: 8px; right: 8px;
  padding: 3px 10px; border-radius: 99px;
  background: rgba(255, 152, 0, 0.85);
  color: #fff; font-size: 0.6rem; font-weight: 700;
  letter-spacing: 1.5px; text-transform: uppercase;
  backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
  line-height: 1.4;
}

/* ===== SCREENSHOT ===== */
.screenshot {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-glass);
  transition: border-color 0.3s, box-shadow 0.3s;
}

.screenshot:hover {
  border-color: var(--border-hover);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
}

.screenshot img {
  width: 100%;
  display: block;
}

.screenshot-caption {
  text-align: center;
  margin-top: 8px;
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* ===== FEATURE SHOWCASE (alternating text + image, premium) ===== */
.feature-showcase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
  padding: 80px 0;
}

.feature-showcase:first-of-type { padding-top: 48px; }

.feature-showcase + .feature-showcase { border-top: 1px solid var(--border-glass); }

.feature-showcase.reverse .feature-visual { order: -1; }

/* --- Text side --- */
.feature-text .feature-label {
  display: inline-block;
  font-size: 0.68rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 2.5px;
  padding: 5px 16px;
  border-radius: 99px;
  background: var(--fw-gradient);
  color: #fff;
  margin-bottom: 16px;
}

.feature-text h3 {
  font-size: 1.4rem; font-weight: 800;
  line-height: 1.3;
  margin-bottom: 14px;
}

.feature-text p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 12px;
}

.feature-text p:last-child { margin-bottom: 0; }

/* Impact metric */
.feature-impact {
  display: inline-flex; align-items: center; gap: 8px;
  margin-top: 8px;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--fw-primary) 8%, transparent);
  border: 1px solid color-mix(in srgb, var(--fw-primary) 15%, transparent);
  font-size: 0.78rem; font-weight: 600;
  color: var(--fw-secondary);
  letter-spacing: 0.3px;
}

/* --- Premium window frame (macOS chrome) --- */
.feature-frame {
  position: relative;
  border-radius: var(--radius-lg);
  background: #111827;
  border: 1px solid var(--border-glass);
  overflow: hidden;
  box-shadow:
    0 20px 60px rgba(0, 0, 0, 0.5),
    0 0 40px color-mix(in srgb, var(--fw-primary) 8%, transparent);
  transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              box-shadow 0.4s ease;
}

/* Title bar */
.feature-frame-bar {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 16px;
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid var(--border-glass);
  user-select: none;
}

/* macOS dots */
.frame-dots {
  display: flex; gap: 6px;
  flex-shrink: 0;
}

.frame-dots span {
  width: 10px; height: 10px;
  border-radius: 50%;
}

.frame-dots span:nth-child(1) { background: #ff5f57; }
.frame-dots span:nth-child(2) { background: #febc2e; }
.frame-dots span:nth-child(3) { background: #28c840; }

/* Panel name in title bar */
.frame-title {
  font-size: 0.72rem; font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.3px;
  flex: 1;
  text-align: center;
}

/* Technical label badge */
.frame-label {
  font-size: 0.6rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 1.5px;
  padding: 2px 10px;
  border-radius: 99px;
  background: color-mix(in srgb, var(--fw-primary) 15%, transparent);
  color: var(--fw-secondary);
  flex-shrink: 0;
}

/* Image area */
.feature-frame-body {
  padding: 0;
  position: relative;
}

.feature-frame-body img {
  width: 100%;
  display: block;
}

/* Animated gradient border (behind frame) */
.feature-frame::before {
  content: '';
  position: absolute; inset: -2px;
  border-radius: calc(var(--radius-lg) + 2px);
  background: linear-gradient(135deg,
    color-mix(in srgb, var(--fw-primary) 35%, transparent),
    transparent 40%,
    transparent 60%,
    color-mix(in srgb, var(--fw-secondary) 35%, transparent)
  );
  background-size: 200% 200%;
  animation: borderShift 6s ease-in-out infinite;
  z-index: -1;
  opacity: 0;
  transition: opacity 0.5s ease;
}

/* Bottom ambient glow */
.feature-frame::after {
  content: '';
  position: absolute;
  bottom: -24px; left: 10%; right: 10%;
  height: 48px;
  background: var(--fw-gradient);
  filter: blur(35px);
  opacity: 0.15;
  border-radius: 50%;
  z-index: -2;
  transition: opacity 0.4s ease;
}

/* Hover state */
.feature-frame:hover {
  transform: translateY(-8px);
  box-shadow:
    0 24px 70px rgba(0, 0, 0, 0.6),
    0 0 50px color-mix(in srgb, var(--fw-primary) 15%, transparent),
    0 0 80px color-mix(in srgb, var(--fw-secondary) 8%, transparent);
}

.feature-frame:hover::before { opacity: 1; }
.feature-frame:hover::after  { opacity: 0.4; }

.feature-frame:hover img {
  filter: brightness(1.04) contrast(1.02);
}

.feature-frame img {
  transition: filter 0.3s ease;
}

/* Vertical image constraint (CB, BP palette) */
.feature-frame--portrait .feature-frame-body {
  display: flex; justify-content: center;
  padding: 16px;
  background: #0e1421;
}

.feature-frame--portrait .feature-frame-body img {
  max-height: 480px;
  width: auto;
  object-fit: contain;
  border-radius: var(--radius-sm);
}

/* Legacy .feature-visual — redirect to frame (backward compat) */
.feature-visual {
  position: relative;
  border-radius: var(--radius-lg);
  background: #111827;
  border: 1px solid var(--border-glass);
  overflow: hidden;
  padding: 0;
  box-shadow:
    0 20px 60px rgba(0, 0, 0, 0.5),
    0 0 40px color-mix(in srgb, var(--fw-primary) 8%, transparent);
  transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              box-shadow 0.4s ease;
}

.feature-visual img {
  width: 100%; display: block;
}

.feature-visual:hover {
  transform: translateY(-6px);
  box-shadow:
    0 20px 60px rgba(0, 0, 0, 0.6),
    0 0 50px color-mix(in srgb, var(--fw-primary) 12%, transparent);
}

.feature-visual--portrait img {
  max-height: 480px; width: auto;
  margin: 0 auto; object-fit: contain;
}

@keyframes borderShift {
  0%   { background-position: 0% 0%; }
  50%  { background-position: 100% 100%; }
  100% { background-position: 0% 0%; }
}

/* ===== GALLERY GRID (kept for satellite framework pages) ===== */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.gallery-grid--3col {
  grid-template-columns: repeat(3, 1fr);
}

.gallery-caption {
  text-align: center;
  margin-top: 12px;
  font-size: 0.85rem;
  color: var(--text-muted);
  font-style: italic;
}

/* ===== CODE TABS ===== */
.code-tabs-wrap {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.code-tab-buttons {
  display: flex;
  border-bottom: 1px solid var(--border-glass);
}

.code-tab-btn {
  flex: 1;
  padding: 12px;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 0.85rem; font-weight: 600;
  cursor: pointer;
  transition: color 0.2s, background 0.2s;
}

.code-tab-btn.active {
  color: var(--fw-secondary);
  background: color-mix(in srgb, var(--fw-secondary) 6%, transparent);
  box-shadow: inset 0 -2px 0 var(--fw-secondary);
}

.code-tab-content {
  display: none;
  padding: 24px;
}

.code-tab-content.active { display: block; }

.code-tab-content pre {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.7;
  color: var(--text-primary);
  overflow-x: auto;
  white-space: pre;
}

/* ===== FILTER BUTTONS ===== */
.filter-btns {
  display: flex; gap: 8px; flex-wrap: wrap;
  margin-bottom: 24px;
}

.filter-btn {
  padding: 6px 16px;
  border-radius: 99px;
  border: 1px solid var(--border-glass);
  background: transparent;
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 0.8rem; font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

.filter-btn.active, .filter-btn:hover {
  border-color: var(--fw-primary);
  color: var(--fw-primary);
  background: color-mix(in srgb, var(--fw-primary) 8%, transparent);
}

/* ===== BADGES ===== */
.badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 18px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-glass);
  border-radius: 99px;
  font-size: 0.82rem; font-weight: 600;
}

.badge .badge-num {
  background: var(--fw-gradient);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 800;
}

.badges-grid {
  display: flex; gap: 16px; flex-wrap: wrap;
}

/* ===== DEV PREVIEW BANNER ===== */
.dev-preview-banner {
  background: rgba(255, 152, 0, 0.06);
  border: 1px solid rgba(255, 152, 0, 0.15);
  border-radius: var(--radius-md);
  padding: 14px 24px;
  margin-bottom: 32px;
  display: flex; align-items: center; gap: 12px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.dev-preview-banner .banner-icon {
  font-size: 1.2rem;
  flex-shrink: 0;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .systems-grid { grid-template-columns: repeat(3, 1fr); }
  .fw-showcase-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-showcase {
    grid-template-columns: 1fr;
    gap: 40px;
    padding: 56px 0;
  }
  .feature-showcase .feature-frame,
  .feature-showcase .feature-visual { order: -1; }
  .feature-showcase.reverse .feature-frame,
  .feature-showcase.reverse .feature-visual { order: -1; }
  .frame-label { display: none; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }

  .nav-links.open {
    display: flex; flex-direction: column;
    position: absolute; top: var(--nav-height); left: 0; right: 0;
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border-glass);
    padding: 16px clamp(16px, 4vw, 48px);
    gap: 12px;
    max-height: calc(100vh - var(--nav-height));
    overflow-y: auto;
  }

  .nav-links.open .nav-dropdown-content {
    position: static;
    transform: none;
    opacity: 1; visibility: visible;
    box-shadow: none;
    border: none;
    padding-left: 16px;
    background: transparent;
  }

  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .systems-grid { grid-template-columns: repeat(2, 1fr); }
  .fw-showcase-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .gallery-grid { grid-template-columns: 1fr; }
  .gallery-grid--3col { grid-template-columns: 1fr 1fr; }
  .feature-showcase { padding: 40px 0; gap: 28px; }
  .feature-text h3 { font-size: 1.2rem; }
  .feature-frame-bar { padding: 8px 12px; }
  .frame-dots span { width: 8px; height: 8px; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  .systems-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .gallery-grid--3col { grid-template-columns: 1fr; }
  .feature-showcase { padding: 32px 0; }
}