/* style.css */
:root {
  --glass-bg: rgba(255, 182, 193, 0.08);
  --glass-border: rgba(255, 192, 203, 0.15);
  --glass-shadow: rgba(0, 0, 0, 0.3);
  --glass-overlay: rgba(30, 15, 20, 0.6);
  --accent: #ff9a9e;
  --accent2: #fecfef;
  --accent3: #ff758c;
  --text: #ffe4e6;
  --muted: rgba(255, 228, 230, 0.6);
  --bg-color: #1a0f14;
  --orb-1: #ff9a9e;
  --orb-2: #fecfef;
  --orb-3: #ff758c;
  --radius: 20px;
  --radius-sm: 12px;
}

:root[data-theme="light"] {
  --glass-bg: rgba(255, 255, 255, 0.5);
  --glass-border: rgba(255, 192, 203, 0.6);
  --glass-shadow: rgba(255, 182, 193, 0.25);
  --glass-overlay: rgba(253, 242, 248, 0.6);
  --accent: #db2777;
  --accent2: #9d174d;
  --accent3: #be185d;
  --text: #4a044e;
  --muted: rgba(74, 4, 78, 0.6);
  --bg-color: #fdf2f8;
  --orb-1: #fbcfe8;
  --orb-2: #fce7f3;
  --orb-3: #f9a8d4;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'DM Sans', sans-serif;
  background: var(--bg-color);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
  transition: background 0.3s ease, color 0.3s ease;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 20% 10%, rgba(255, 154, 158, 0.07) 0%, transparent 55%),
    radial-gradient(ellipse 60% 70% at 80% 80%, rgba(254, 207, 239, 0.09) 0%, transparent 55%),
    radial-gradient(ellipse 50% 40% at 55% 40%, rgba(255, 117, 140, 0.05) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

.orb {
  position: fixed;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.25;
  pointer-events: none;
  z-index: 0;
  animation: floatOrb 20s ease-in-out infinite;
  will-change: transform;
  transform: translateZ(0);
}
.orb-1 { width: 500px; height: 500px; background: var(--orb-1); top: -150px; left: -150px; animation-duration: 22s; }
.orb-2 { width: 400px; height: 400px; background: var(--orb-2); bottom: -100px; right: -100px; animation-duration: 18s; animation-delay: -6s; }
.orb-3 { width: 300px; height: 300px; background: var(--orb-3); top: 50%; left: 50%; animation-duration: 25s; animation-delay: -12s; }

@keyframes floatOrb {
  0%, 100% { transform: translate3d(0, 0, 0) scale(1); }
  33% { transform: translate3d(30px, -40px, 0) scale(1.05); }
  66% { transform: translate3d(-20px, 30px, 0) scale(0.95); }
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 1;
  opacity: 0.4;
  will-change: transform;
}

.glass {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  box-shadow: 0 8px 40px var(--glass-shadow), inset 0 1px 0 rgba(255,255,255,0.1);
}

#app { position: relative; z-index: 2; }

nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 40px;
  background: var(--glass-overlay);
  border-bottom: 1px solid var(--glass-border);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  transition: background 0.3s ease;
}
.nav-logo {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  cursor: pointer;
}
.nav-controls {
  display: flex;
  align-items: center;
  gap: 12px;
}
.nav-tag {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  padding: 4px 12px;
  border-radius: 100px;
}

.nav-btn {
  padding: 5px 14px;
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.page { display: none; }
.page.active { display: block; }

#page-home { padding-top: 100px; padding-bottom: 60px; }

.section-label {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 0 40px;
  margin-bottom: 28px;
}
.section-label span {
  font-family: 'Syne', sans-serif;
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
}
.section-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--glass-border);
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
  padding: 0 40px;
  max-width: 1400px;
  margin: 0 auto;
}

.os-card {
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.3s cubic-bezier(.22,.68,0,1.2), box-shadow 0.3s ease;
  position: relative;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  box-shadow: 0 8px 40px var(--glass-shadow), inset 0 1px 0 rgba(255,255,255,0.1);
  animation: cardIn 0.6s cubic-bezier(.22,.68,0,1.2) both;
  transform: translate3d(0, 0, 0);
  -webkit-transform: translate3d(0, 0, 0);
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}
.os-card:hover {
  transform: translate3d(0, -8px, 0) scale(1.015);
  box-shadow: 0 24px 60px var(--glass-shadow), 0 0 0 1px var(--glass-border), inset 0 1px 0 rgba(255,255,255,0.15);
}
.os-card:hover .card-img img { transform: scale(1.06); }
.os-card:hover .card-arrow { opacity: 1; transform: translate3d(0, 0, 0); }
.os-card:active { transform: translate3d(0, -4px, 0) scale(1.008); }

@keyframes cardIn {
  from { opacity: 0; transform: translate3d(0, 30px, 0) scale(0.97); }
  to   { opacity: 1; transform: translate3d(0, 0, 0) scale(1); }
}

.os-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.04) 0%, transparent 60%);
  pointer-events: none;
  z-index: 1;
}

.card-img {
  aspect-ratio: 16 / 9;
  height: auto;
  overflow: hidden;
  position: relative;
  background: var(--glass-bg);
}
.card-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
  display: block;
}
.card-img-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, var(--glass-overlay) 0%, transparent 50%);
}

.badges-container {
  position: absolute;
  top: 12px;
  right: 12px;
  display: flex;
  gap: 8px;
  z-index: 2;
}

.card-badge {
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 100px;
  background: rgba(10, 5, 10, 0.5);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
  font-weight: 700;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.8);
}

.card-badge.new { color: #4ade80; border-color: rgba(74,222,128,0.4); }
.card-badge.stable { color: #60a5fa; border-color: rgba(96,165,250,0.4); }
.card-badge.pre-release { color: #f87171; border-color: rgba(248,113,113,0.4); }
.card-badge.beta { color: #fbbf24; border-color: rgba(251,191,36,0.4); }

.card-body { padding: 22px 24px 24px; }
.card-title {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
  line-height: 1.2;
}
.card-desc {
  font-size: 0.875rem;
  color: var(--muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--glass-border);
}
.card-count {
  font-size: 0.78rem;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 6px;
}
.card-arrow {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  display: flex; align-items: center; justify-content: center;
  font-size: 0.85rem;
  color: var(--bg-color);
  opacity: 0;
  transform: translate3d(-4px, 4px, 0);
  transition: opacity 0.25s ease, transform 0.25s ease;
}

#page-detail { padding-top: 90px; padding-bottom: 80px; }

.detail-container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 40px;
  display: flex;
  flex-direction: column;
}

.back-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--muted);
  cursor: pointer;
  padding: 10px 20px 10px 16px;
  border-radius: 100px;
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
  margin: 24px 0 0;
  width: fit-content;
}
.back-btn:hover { color: var(--text); border-color: var(--accent); }

.detail-hero {
  display: flex;
  flex-direction: column;
  gap: 0;
  width: 100%;
  margin: 32px 0 48px;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 16px 60px var(--glass-shadow);
}
.detail-img {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  max-height: 500px;
  overflow: hidden;
}
.detail-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
}
.detail-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, var(--glass-overlay) 0%, transparent 40%);
  opacity: 0.8;
}
.detail-info {
  padding: 32px 44px 48px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.detail-eyebrow {
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.detail-title {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  letter-spacing: -0.04em;
  line-height: 1.05;
  margin-bottom: 16px;
}
.detail-desc {
  font-size: 0.95rem;
  color: var(--muted);
  line-height: 1.7;
  margin-bottom: 28px;
}
.action-buttons {
  display: flex;
  gap: 16px;
  margin-top: 10px;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 28px;
  padding: 0 40px;
}

.filter-select {
  background: var(--glass-bg);
  color: var(--text);
  border: 1px solid var(--glass-border);
  padding: 8px 16px;
  border-radius: 100px;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.85rem;
  outline: none;
  cursor: pointer;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  -webkit-appearance: none;
}
.filter-select option {
  background: var(--bg-color);
  color: var(--text);
}

.downloads-section {
  width: 100%;
  margin: 0;
}

.dl-group { margin-bottom: 36px; padding: 0 40px;}
.dl-group-title {
  font-family: 'Syne', sans-serif;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.dl-group-title::after {
  content: '';
  flex: 1;
  max-width: 120px;
  height: 1px;
  background: var(--glass-border);
}

.dl-list { display: flex; flex-direction: column; gap: 10px; }

.dl-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 22px;
  border-radius: var(--radius-sm);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: transform 0.25s ease, background 0.25s ease, box-shadow 0.25s ease;
  animation: cardIn 0.5s cubic-bezier(.22,.68,0,1.2) both;
  will-change: transform;
}
.dl-item:hover {
  background: var(--glass-border);
  transform: translate3d(4px, 0, 0);
  box-shadow: 0 4px 24px var(--glass-shadow);
}
.dl-item-left { display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.dl-item-name {
  font-family: 'Syne', sans-serif;
  font-weight: 600;
  font-size: 0.98rem;
  letter-spacing: -0.01em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.dl-item-meta { font-size: 0.78rem; color: var(--muted); }
.dl-item-right { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }

.btn-dl {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px;
  border-radius: 100px;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.82rem;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: opacity 0.2s ease, transform 0.2s ease, background 0.2s ease;
  border: none;
  outline: none;
}
.btn-dl.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: var(--bg-color);
  font-weight: 600;
}
.btn-dl.primary:hover { opacity: 0.88; transform: scale(1.04); }
.btn-dl.secondary {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text);
}
.btn-dl.secondary:hover { background: var(--glass-border); }

.btn-dl:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  filter: grayscale(100%);
  transform: none !important;
}

.tag-chip {
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 3px 9px;
  border-radius: 100px;
  border: 1px solid;
  white-space: nowrap;
}
.tag-chip.stable { color: #4ade80; border-color: rgba(74,222,128,0.3); background: rgba(74,222,128,0.08); }
.tag-chip.beta   { color: #fbbf24; border-color: rgba(251,191,36,0.3); background: rgba(251,191,36,0.08); }
.tag-chip.alpha  { color: #f87171; border-color: rgba(248,113,113,0.3); background: rgba(248,113,113,0.08); }
.tag-chip.pre { color: #f87171; border-color: rgba(248,113,113,0.3); background: rgba(248,113,113,0.08); }

.empty-note {
  text-align: center;
  padding: 60px 40px;
  color: var(--muted);
  font-size: 0.9rem;
}

footer {
  text-align: center;
  padding: 32px 40px;
  margin-top: 40px;
  border-top: 1px solid var(--glass-border);
  font-size: 0.78rem;
  color: var(--muted);
  letter-spacing: 0.06em;
}

.modal {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: var(--glass-overlay);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.modal.active {
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-content {
  position: relative;
  width: 90%;
  max-width: 800px;
  max-height: 85vh;
  overflow-y: auto;
  border-radius: var(--radius);
  padding: 40px;
  animation: cardIn 0.3s cubic-bezier(.22,.68,0,1.2);
}

.close-modal {
  position: absolute;
  top: 20px;
  right: 25px;
  color: var(--text);
  font-size: 28px;
  font-weight: bold;
  cursor: pointer;
  transition: 0.2s ease;
}

.close-modal:hover {
  color: var(--accent);
}

#md-content {
  line-height: 1.6;
}
#md-content h1, #md-content h2, #md-content h3 {
  font-family: 'Syne', sans-serif;
  margin: 1.5em 0 0.5em;
  color: var(--accent);
}
#md-content h1 { font-size: 2rem; margin-top: 0; }
#md-content p { margin-bottom: 1em; color: var(--text); }
#md-content pre {
  background: var(--bg-color);
  padding: 15px;
  border-radius: var(--radius-sm);
  overflow-x: auto;
  margin-bottom: 1em;
  border: 1px solid var(--glass-border);
}
#md-content code {
  font-family: monospace;
  background: var(--bg-color);
  padding: 2px 5px;
  border-radius: 4px;
}
#md-content ul, #md-content ol {
  margin-bottom: 1em;
  padding-left: 20px;
}

@media (max-width: 768px) {
  body::after {
    display: none;
  }
  .glass, .os-card, nav, .dl-item, .detail-hero, .modal, .filter-select {
    backdrop-filter: blur(6px) saturate(140%);
    -webkit-backdrop-filter: blur(6px) saturate(140%);
  }
  .orb {
    filter: blur(40px);
  }
  nav { padding: 14px 20px; }
  .hero { padding: 40px 20px 50px; }
  .cards-grid { grid-template-columns: 1fr; padding: 0 20px; }
  .section-label { padding: 0 20px; }
  .detail-container { padding: 0 20px; }
  .back-btn { margin: 20px 0 0; }
  .detail-hero { margin: 20px 0 32px; }
  .detail-img { min-height: 200px; }
  .detail-info { padding: 28px 24px; }
  .action-buttons { flex-direction: column; width: 100%; }
  .action-buttons .btn-dl { width: 100%; justify-content: center; }
  .section-header { flex-direction: column; align-items: flex-start; gap: 16px; padding: 0 20px;}
  .dl-group { padding: 0 20px; }
  .dl-item { flex-direction: column; align-items: flex-start; }
  .dl-item-right { width: 100%; justify-content: flex-start; flex-wrap: wrap; }
  .dl-item-right .btn-dl { width: 100%; justify-content: center; }
  .modal-content { padding: 25px; }
  .os-card {
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
  background: var(--glass-overlay); 
}
}