:root {
  color-scheme: light;
  --ink: #1c1813;
  --muted: #746b5f;
  --paper: #fcf9f5;
  --panel: rgba(255, 250, 240, 0.8);
  --panel-strong: #fff;
  --line: rgba(28, 24, 19, 0.1);
  --accent: #cf5b2c;
  --accent-2: #1d6a73;
  --danger: #e5484d;
  --radius-sm: 12px;
  --radius-md: 18px;
  --radius-lg: 28px;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 12px 30px rgba(58, 36, 16, 0.08);
  --shadow-lg: 0 24px 70px rgba(58, 36, 16, 0.12);
  --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 10% 12%, rgba(207, 91, 44, 0.1), transparent 40rem),
    radial-gradient(circle at 88% 8%, rgba(29, 106, 115, 0.08), transparent 40rem),
    linear-gradient(135deg, #fdfaf6 0%, #f4eee5 100%);
  line-height: 1.5;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.2;
  background-image: radial-gradient(var(--ink) 0.5px, transparent 0.5px);
  background-size: 24px 24px;
  mask-image: linear-gradient(to bottom, #000, transparent);
}

header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  background: rgba(252, 249, 245, 0.8);
  border-bottom: 1px solid var(--line);
  transition: var(--transition);
}

.shell { width: min(1400px, calc(100vw - 40px)); margin: 0 auto; }

.hero {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 40px;
  align-items: center;
  padding: 40px 0 32px;
}

.brand-row {
  display: inline-flex;
  align-items: center;
  gap: 16px;
}

.brandmark {
  display: grid;
  width: 56px;
  aspect-ratio: 1;
  place-items: center;
  border-radius: 16px;
  color: #fff;
  background: var(--ink);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

h1 {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, serif;
  font-weight: 700;
  font-size: clamp(32px, 5vw, 48px);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.subtitle {
  margin: 16px 0 0;
  color: var(--muted);
  max-width: 600px;
  font-size: 15px;
}

.stats {
  display: flex;
  gap: 12px;
}

.stat {
  padding: 16px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--panel-strong);
  box-shadow: var(--shadow-sm);
  min-width: 120px;
}

.stat strong { display: block; font-size: 24px; font-weight: 600; line-height: 1; }
.stat span { display: block; margin-top: 4px; color: var(--muted); font-size: 12px; font-weight: 500; text-transform: uppercase; letter-spacing: 0.05em; }

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding: 0 0 24px;
}

input, select, .toolbar-button {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 10px 16px;
  color: var(--ink);
  background: var(--panel-strong);
  font: inherit;
  font-size: 14px;
  outline: none;
  transition: var(--transition);
}

input { flex: 2; min-width: 240px; }
select { flex: 1; min-width: 140px; cursor: pointer; }
.toolbar-button { flex: 1; min-width: 180px; cursor: pointer; text-align: center; font-weight: 500; }

.toolbar-button.saved {
  border-color: rgba(29, 106, 115, 0.3);
  color: var(--accent-2);
  background: rgba(29, 106, 115, 0.05);
}

input:focus, select:focus, .toolbar-button:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(207, 91, 44, 0.1);
}

main { padding: 32px 0 80px; }

.meta-line {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 24px;
}

.meta-pill {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 12px;
  background: var(--panel-strong);
  font-weight: 500;
}

.selection-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin: -8px 0 24px;
  padding: 14px 16px;
  border: 1px solid rgba(29, 106, 115, 0.18);
  border-radius: var(--radius-md);
  background: rgba(29, 106, 115, 0.06);
}

.selection-bar[hidden] { display: none; }

.selection-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.selection-actions button {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 8px 12px;
  color: var(--ink);
  background: #fff;
  font: inherit;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
}

.selection-actions button:hover:not(:disabled) {
  border-color: var(--ink);
  background: #f5f5f5;
}

.selection-actions .danger {
  color: #fff;
  border-color: var(--danger);
  background: var(--danger);
}

.selection-actions button:disabled {
  cursor: not-allowed;
  opacity: 0.48;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--panel-strong);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(28, 24, 19, 0.2);
}

.card.selected {
  border-color: rgba(29, 106, 115, 0.58);
  box-shadow: 0 0 0 3px rgba(29, 106, 115, 0.12), var(--shadow-md);
}

.thumb-container {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: #f0f0f0;
}

.select-control {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid rgba(28, 24, 19, 0.12);
  border-radius: 999px;
  padding: 6px 9px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.88);
  box-shadow: var(--shadow-sm);
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  backdrop-filter: blur(10px);
}

.select-control input {
  width: auto;
  min-width: 0;
  accent-color: var(--accent-2);
}

.thumb {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 16px;
  transition: transform 0.5s ease;
}

.card:hover .thumb {
  transform: scale(1.05);
}

.body {
  padding: 16px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.card-head {
  display: flex;
  gap: 8px;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.source {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border-radius: 6px;
  padding: 3px 8px;
  font-size: 11px;
  font-weight: 700;
  color: #fff;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.source.github { background: #24292e; }
.source.r2 { background: #f38020; }

.time-badge {
  color: var(--muted);
  font-size: 12px;
  font-weight: 500;
}

.name {
  margin: 0 0 16px;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.4;
  word-break: break-all;
  color: var(--ink);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 2.8em;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
  margin: 0 0 20px;
}

.info-grid div {
  background: #f9f9f9;
  border-radius: 10px;
  padding: 8px 10px;
}

.info-grid dt {
  color: var(--muted);
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 2px;
}

.info-grid dd {
  margin: 0;
  font-size: 12px;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: auto;
}

.actions a, .actions button {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 8px;
  color: var(--ink);
  background: #fff;
  text-align: center;
  text-decoration: none;
  font: inherit;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.actions a:hover, .actions button:hover {
  background: #f5f5f5;
  border-color: var(--ink);
}

.actions .danger {
  color: var(--danger);
  grid-column: span 2;
  margin-top: 4px;
}

.actions .danger:hover {
  background: #fff5f5;
  border-color: var(--danger);
}

.actions button:disabled {
  cursor: wait;
  opacity: 0.5;
}

/* Custom Modal System */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-container {
  width: min(480px, calc(100vw - 40px));
  background: var(--panel-strong);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  transform: scale(0.95);
  transition: var(--transition);
  overflow: hidden;
}

.modal-overlay.active .modal-container {
  transform: scale(1);
}

.modal-header {
  padding: 24px 24px 12px;
}

.modal-header h2 {
  margin: 0;
  font-size: 24px;
  font-weight: 700;
}

.modal-body {
  padding: 0 24px 24px;
  color: var(--muted);
}

.modal-body p { margin: 12px 0 0; line-height: 1.6; white-space: pre-wrap; }

.modal-input {
  width: 100%;
  margin-top: 20px;
}

.modal-footer {
  padding: 16px 24px 24px;
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  background: #f9f9f9;
}

.modal-btn {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px 20px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.modal-btn.primary {
  background: var(--ink);
  color: #fff;
  border: none;
}

.modal-btn.danger {
  background: var(--danger);
  color: #fff;
  border: none;
}

.modal-btn:hover { opacity: 0.8; }

/* Toast System */
#toast-container {
  position: fixed;
  bottom: 32px;
  right: 32px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.toast {
  padding: 16px 24px;
  background: var(--ink);
  color: #fff;
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  font-size: 14px;
  font-weight: 500;
  transform: translateX(100%);
  animation: slideIn 0.3s ease forwards;
}

@keyframes slideIn { to { transform: translateX(0); } }

.empty {
  display: none;
  padding: 80px 40px;
  border: 2px dashed var(--line);
  border-radius: var(--radius-lg);
  text-align: center;
  color: var(--muted);
  background: var(--panel);
}

@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; gap: 24px; text-align: center; }
  .brand-row { justify-content: center; }
  .stats { justify-content: center; flex-wrap: wrap; }
  .selection-bar { align-items: stretch; flex-direction: column; }
  .selection-actions { display: grid; grid-template-columns: 1fr; }
  .toolbar > * { flex: 1 1 100%; }
}