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

:root {
  --bg: #09090b;
  --bg2: #111113;
  --bg3: #18181b;
  --bg4: #27272a;
  --border: #27272a;
  --border2: #3f3f46;
  --text: #fafafa;
  --text2: #a1a1aa;
  --text3: #71717a;
  --accent: #06b6d4;
  --accent2: #0891b2;
  --green: #00ff88;
  --radius: 12px;
  --radius-sm: 6px;
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
  --transition: 150ms cubic-bezier(0.4,0,0.2,1);
}

html { font-size: 16px; scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* ========== Header ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(9,9,11,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.1rem;
}
.logo-icon { font-size: 1.4rem; }
.logo-text { letter-spacing: -0.02em; }
.logo-accent { color: var(--accent); }
.logo-sub {
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--text3);
  background: var(--bg3);
  padding: 2px 8px;
  border-radius: 20px;
  border: 1px solid var(--border);
  letter-spacing: 0.05em;
}
.header-nav { display: flex; gap: 4px; }
.nav-link {
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  color: var(--text2);
  transition: var(--transition);
}
.nav-link:hover { background: var(--bg3); color: var(--text); }

/* ========== Footer ========== */
.site-footer {
  margin-top: auto;
  border-top: 1px solid var(--border);
  padding: 16px 24px;
}
.footer-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: var(--text3);
  gap: 16px;
  flex-wrap: wrap;
}
.footer-inner a { color: var(--accent); }
.footer-inner a:hover { text-decoration: underline; }
.footer-right { text-align: right; }

/* ========== Manifesto ========== */
.manifesto {
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(6,182,212,0.04), transparent 40%);
}
.manifesto-inner {
  max-width: 800px;
  margin: 0 auto;
  padding: 56px 24px 48px;
}
.manifesto-kicker {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--accent);
  margin-bottom: 14px;
}
.manifesto-title {
  font-size: clamp(1.5rem, 3.2vw, 2.2rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.25;
  margin-bottom: 24px;
}
.manifesto-body p {
  font-size: 0.95rem;
  color: var(--text2);
  line-height: 1.75;
  margin-bottom: 16px;
}
.manifesto-body p:last-child { margin-bottom: 0; }
.manifesto-thesis {
  margin-top: 32px;
  padding: 28px 28px 24px;
  background: var(--bg2);
  border: 1px solid var(--border2);
  border-left: 3px solid #e63946;
  border-radius: var(--radius);
}
.thesis-title {
  font-size: 1.56rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 14px;
  letter-spacing: -0.01em;
}
.manifesto-thesis p {
  font-size: 1.104rem;
  color: var(--text2);
  line-height: 1.75;
  margin-bottom: 14px;
}
.manifesto-thesis p:last-child { margin-bottom: 0; }
.manifesto-thesis em {
  color: var(--text);
  font-style: normal;
  font-weight: 600;
}

/* ========== Hero ========== */
.hero {
  text-align: center;
  padding: 64px 24px 40px;
  max-width: 700px;
  margin: 0 auto;
}
.hero-title {
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 16px;
}
.hero-accent {
  background: linear-gradient(135deg, var(--accent), var(--green));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  font-size: 1rem;
  color: var(--text2);
  max-width: 560px;
  margin: 0 auto;
}

/* ========== Controls ========== */
.controls {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.search-wrap {
  position: relative;
  max-width: 480px;
}
.search-input {
  width: 100%;
  background: var(--bg3);
  border: 1px solid var(--border2);
  border-radius: 8px;
  padding: 10px 16px 10px 42px;
  color: var(--text);
  font-size: 0.9rem;
  outline: none;
  transition: var(--transition);
}
.search-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(6,182,212,0.15);
}
.search-input::placeholder { color: var(--text3); }
.search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.1rem;
  color: var(--text3);
  pointer-events: none;
}
.filter-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.filter-label {
  font-size: 0.8rem;
  color: var(--text3);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  white-space: nowrap;
}
.btn-group { display: flex; gap: 4px; flex-wrap: wrap; }
.btn-filter {
  padding: 5px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
  border: 1px solid var(--border);
  background: var(--bg3);
  color: var(--text2);
  transition: var(--transition);
  cursor: pointer;
  white-space: nowrap;
}
.btn-filter:hover { border-color: var(--border2); color: var(--text); }
.btn-filter.active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--bg);
  font-weight: 600;
}
.grade-btn.active { background: var(--grade-color, var(--accent)); border-color: var(--grade-color, var(--accent)); }

.category-chips {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.chip {
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.75rem;
  border: 1px solid var(--border);
  background: var(--bg2);
  color: var(--text3);
  transition: var(--transition);
  cursor: pointer;
}
.chip:hover { color: var(--text2); border-color: var(--border2); }
.chip-active { background: var(--bg4); color: var(--text); border-color: var(--border2); }

.result-count {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px 12px;
  font-size: 0.85rem;
  color: var(--text3);
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
#visible-count { color: var(--accent); font-weight: 600; }
.filter-tag {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 2px 10px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.clear-x { color: var(--text3); cursor: pointer; font-size: 1rem; line-height: 1; }
.clear-x:hover { color: var(--text); }

/* ========== App Grid ========== */
.app-grid {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px 60px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
}

.app-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
  cursor: pointer;
}
.app-card:hover {
  transform: translateY(-3px);
  border-color: var(--border2);
  box-shadow: var(--shadow);
}
.app-card.hidden { display: none; }

.card-img-wrap {
  position: relative;
  aspect-ratio: 16/10;
  overflow: hidden;
  background: var(--bg3);
}
.card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 300ms ease;
}
.app-card:hover .card-img { transform: scale(1.04); }

.card-badges {
  position: absolute;
  top: 8px;
  left: 8px;
  right: 8px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}
.badge-num {
  background: rgba(9,9,11,0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--border2);
  border-radius: 6px;
  padding: 2px 8px;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text2);
  font-family: 'SF Mono', 'Fira Code', monospace;
}
.badge-grade {
  background: rgba(9,9,11,0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--grade-color, #666);
  border-radius: 6px;
  padding: 2px 8px;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--grade-color, #666);
  font-family: 'SF Mono', 'Fira Code', monospace;
}

.badge-needs-improvement {
  background: rgba(9,9,11,0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid #e63946;
  border-radius: 6px;
  padding: 2px 8px;
  font-size: 0.7rem;
  font-weight: 700;
  color: #e63946;
  white-space: nowrap;
}

.card-score-bar {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: rgba(255,255,255,0.06);
}
.score-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--green));
  transition: width 600ms ease;
}

.card-body {
  padding: 14px 16px 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}
.card-title-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 8px;
}
.card-title {
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.3;
}
.card-score {
  font-size: 0.9rem;
  font-weight: 700;
  font-family: 'SF Mono', 'Fira Code', monospace;
  white-space: nowrap;
}
.card-category {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--accent);
}
.card-blurb {
  font-size: 0.82rem;
  color: var(--text2);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-meta {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: auto;
  padding-top: 4px;
}
.meta-lang, .meta-complexity, .meta-cost {
  font-size: 0.7rem;
  padding: 2px 7px;
  border-radius: 4px;
  background: var(--bg4);
  color: var(--text3);
  border: 1px solid var(--border);
}
.complexity-easy { color: #00ff88; border-color: rgba(0,255,136,0.3); }
.complexity-medium { color: #f4a261; border-color: rgba(244,162,97,0.3); }
.complexity-hard { color: #e63946; border-color: rgba(230,57,70,0.3); }
.complexity-expert { color: #9b1d2a; border-color: rgba(155,29,42,0.3); }

.empty-state {
  grid-column: 1/-1;
  text-align: center;
  padding: 80px 20px;
  color: var(--text3);
}
.empty-icon { font-size: 3rem; margin-bottom: 16px; }
.empty-state a { color: var(--accent); }

/* ========== Detail Page ========== */
.page-detail {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 24px 80px;
}
.detail-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}
.back-link {
  color: var(--text2);
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
}
.back-link:hover { color: var(--text); }
.detail-nav-adj { display: flex; gap: 12px; }
.adj-link {
  font-size: 0.8rem;
  color: var(--text3);
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}
.adj-link:hover { color: var(--text); border-color: var(--border2); }

.detail-hero {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 32px;
  margin-bottom: 40px;
  align-items: start;
}
.detail-img-wrap {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  aspect-ratio: 16/10;
  background: var(--bg3);
}
.detail-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.detail-header { display: flex; flex-direction: column; gap: 14px; }
.detail-badges { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.badge-num-lg {
  background: var(--bg4);
  border: 1px solid var(--border2);
  border-radius: 8px;
  padding: 4px 12px;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text2);
  font-family: 'SF Mono', 'Fira Code', monospace;
}
.badge-grade-lg {
  background: color-mix(in srgb, var(--grade-color) 15%, transparent);
  border: 1.5px solid var(--grade-color, #666);
  border-radius: 8px;
  padding: 4px 14px;
  font-size: 1rem;
  font-weight: 800;
  color: var(--grade-color, #666);
  font-family: 'SF Mono', 'Fira Code', monospace;
}
.badge-needs-improvement-lg {
  background: rgba(230,57,70,0.12);
  border: 1.5px solid #e63946;
  border-radius: 8px;
  padding: 4px 14px;
  font-size: 0.95rem;
  font-weight: 800;
  color: #e63946;
}
.improvement-section {
  border-color: rgba(230,57,70,0.35);
}
.needs-improvement-text {
  color: #e63946;
  font-weight: 700;
}
.badge-rank {
  font-size: 0.8rem;
  color: var(--text3);
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 10px;
}
.detail-title {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.2;
}
.detail-blurb { color: var(--text2); font-size: 0.95rem; line-height: 1.6; }
.detail-meta { display: flex; gap: 8px; flex-wrap: wrap; }
.meta-pill {
  font-size: 0.78rem;
  padding: 4px 12px;
  border-radius: 20px;
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text2);
}
.meta-cost-pill { color: var(--green); border-color: rgba(0,255,136,0.3); }

.detail-links { display: flex; gap: 10px; flex-wrap: wrap; }
.detail-link {
  font-size: 0.85rem;
  color: var(--accent);
  border: 1px solid var(--accent2);
  border-radius: var(--radius-sm);
  padding: 6px 14px;
  transition: var(--transition);
}
.detail-link:hover { background: var(--accent2); color: var(--bg); }
.detail-link-live {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
  font-weight: 600;
}
.detail-link-live:hover { background: var(--accent2); border-color: var(--accent2); }

/* Score Ring */
.total-score-display { display: flex; justify-content: center; }
.total-score-ring {
  position: relative;
  width: 120px;
  height: 120px;
}
.score-ring-svg {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}
.score-ring-val {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
}
.score-num {
  font-size: 1.6rem;
  font-weight: 800;
  line-height: 1;
  font-family: 'SF Mono', 'Fira Code', monospace;
}
.score-label { font-size: 0.7rem; color: var(--text3); }

/* Detail Body Layout */
.detail-body {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 28px;
  align-items: start;
}
.detail-main { display: flex; flex-direction: column; gap: 28px; }
.detail-section {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}
.section-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.prose {
  font-size: 0.9rem;
  color: var(--text2);
  line-height: 1.7;
  white-space: pre-wrap;
}

/* Sidebar */
.detail-sidebar { display: flex; flex-direction: column; gap: 16px; position: sticky; top: 76px; }
.score-breakdown-card, .sidebar-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}
.sidebar-title {
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text3);
  margin-bottom: 16px;
}
.score-row { margin-bottom: 14px; }
.score-row:last-child { margin-bottom: 0; }
.score-row-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 4px;
}
.score-dim-label { font-size: 0.78rem; color: var(--text2); }
.score-dim-val { font-size: 0.85rem; font-weight: 700; font-family: 'SF Mono', 'Fira Code', monospace; }
.score-bar-bg {
  height: 4px;
  background: var(--bg4);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: 2px;
}
.score-bar-fill {
  height: 100%;
  border-radius: 2px;
  transition: width 600ms cubic-bezier(0.4,0,0.2,1);
}
.score-weight { font-size: 0.65rem; color: var(--text3); }

.stat-list {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 8px 12px;
  font-size: 0.82rem;
}
.stat-list dt { color: var(--text3); }
.stat-list dd { color: var(--text2); font-weight: 500; }

/* ========== Responsive ========== */
@media (max-width: 900px) {
  .detail-hero { grid-template-columns: 1fr; }
  .detail-body { grid-template-columns: 1fr; }
  .detail-sidebar { position: static; }
  .app-grid { grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }
}
@media (max-width: 600px) {
  .header-inner { padding: 0 16px; }
  .logo-sub { display: none; }
  .hero { padding: 40px 16px 24px; }
  .controls, .result-count, .app-grid { padding-left: 16px; padding-right: 16px; }
  .app-grid { grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: 12px; }
  .filter-row { flex-wrap: wrap; }
  .detail-nav-adj { display: none; }
}