/* ============================================
   King's Caprice — Shop Titans Optimizer
   Dark theme with gold/amber accents
   ============================================ */

/* ---------- Design Tokens ---------- */
:root {
  --bg-primary: #0f0f1a;
  --bg-secondary: #1a1a2e;
  --bg-card: rgba(255, 255, 255, 0.04);
  --bg-card-hover: rgba(255, 255, 255, 0.07);
  --border-glass: rgba(255, 255, 255, 0.08);
  --border-accent: rgba(212, 175, 55, 0.3);

  --gold-400: #f5d060;
  --gold-500: #d4af37;
  --gold-600: #b8962e;
  --amber-glow: rgba(212, 175, 55, 0.15);

  --text-primary: #f0ebe3;
  --text-secondary: #9d97a1;
  --text-muted: #6b6573;

  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --radius: 14px;
  --radius-sm: 8px;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  background-image:
    radial-gradient(ellipse at 20% 0%, rgba(212, 175, 55, 0.06) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 100%, rgba(120, 80, 220, 0.04) 0%, transparent 60%);
}

/* ---------- Loading Overlay ---------- */
#loading-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.4s ease, visibility 0.4s ease;
}

#loading-overlay.hide {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader-content {
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.spinner {
  width: 40px;
  height: 40px;
  margin: 0 auto 16px;
  border: 3px solid var(--border-glass);
  border-top-color: var(--gold-500);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ---------- Header ---------- */
header {
  text-align: center;
  padding: 48px 24px 32px;
}

.header-inner h1 {
  font-size: clamp(1.8rem, 5vw, 2.6rem);
  font-weight: 800;
  background: linear-gradient(135deg, var(--gold-400), var(--gold-600));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.02em;
}

.subtitle {
  margin-top: 6px;
  color: var(--text-secondary);
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* ---------- Glass Card ---------- */
.glass-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.glass-card:hover {
  border-color: var(--border-accent);
  box-shadow: 0 0 30px var(--amber-glow);
}

/* ---------- Main ---------- */
main {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px 48px;
}

/* ---------- Selection Panel ---------- */
#selection-panel {
  padding: 32px;
  margin-bottom: 40px;
}

#selection-panel h2 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--gold-400);
  margin-bottom: 24px;
  letter-spacing: 0.01em;
}

.controls-row {
  display: flex;
  gap: 20px;
  margin-bottom: 24px;
}

.controls-row .control-group {
  flex: 0 0 180px;
}

/* ---------- Category Grid ---------- */
.cat-section {
  margin-top: 4px;
}

.cat-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.cat-counter {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--gold-400);
  background: rgba(212, 175, 55, 0.12);
  padding: 2px 10px;
  border-radius: 20px;
}

.cat-counter.full {
  color: #6ee7b7;
  background: rgba(110, 231, 183, 0.12);
}

.cat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
  gap: 10px;
}

.cat-tile {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 10px 4px 8px;
  border-radius: var(--radius-sm);
  border: 1.5px solid transparent;
  background: var(--bg-secondary);
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
  user-select: none;
}

.cat-tile:hover {
  border-color: rgba(255, 255, 255, 0.12);
  background: var(--bg-card-hover);
}

.cat-tile.selected {
  border-color: var(--gold-500);
  background: rgba(212, 175, 55, 0.08);
  box-shadow: 0 0 16px var(--amber-glow);
}

.cat-tile.disabled {
  opacity: 0.35;
  cursor: not-allowed;
  pointer-events: none;
}

.cat-tile img {
  width: 36px;
  height: 36px;
  object-fit: contain;
}

.cat-tile .cat-tile-label {
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-align: center;
  line-height: 1.2;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.cat-tile.selected .cat-tile-label {
  color: var(--gold-400);
}

.cat-tile .sel-badge {
  position: absolute;
  top: -6px;
  right: -6px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--gold-500), var(--gold-600));
  color: var(--bg-primary);
  font-size: 0.65rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}

/* ---------- Controls ---------- */
.control-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.control-group label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

select,
input[type="number"] {
  appearance: none;
  -webkit-appearance: none;
  font-family: var(--font);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-primary);
  background: var(--bg-secondary);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  width: 100%;
}

select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%239d97a1' d='M6 8.825L1.175 4 2.238 2.938 6 6.7 9.762 2.938 10.825 4z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 32px;
  cursor: pointer;
}

select:focus,
input[type="number"]:focus {
  border-color: var(--gold-500);
  box-shadow: 0 0 0 3px var(--amber-glow);
}

/* ---------- Toggle Switch ---------- */
.toggle-group {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.toggle-switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
  margin-top: 6px;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--bg-card);
  transition: .3s;
  border-radius: 24px;
  border: 1px solid var(--border-glass);
}

.toggle-slider:before {
  position: absolute;
  content: "";
  height: 16px;
  width: 16px;
  left: 3px;
  bottom: 3px;
  background-color: var(--text-secondary);
  transition: .3s;
  border-radius: 50%;
}

input:checked+.toggle-slider {
  background-color: var(--gold-600);
  border-color: var(--gold-500);
}

input:checked+.toggle-slider:before {
  transform: translateX(20px);
  background-color: var(--bg-primary);
}

input[type="number"] {
  -moz-appearance: textfield;
}

input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
  -webkit-appearance: none;
}

/* ---------- Results ---------- */
#results {
  transition: opacity 0.4s ease, transform 0.4s ease;
}

#results.hidden {
  display: none;
}

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

@media (max-width: 720px) {
  .results-grid {
    grid-template-columns: 1fr;
  }
}

/* ---------- Result Block ---------- */
.result-block {
  padding: 24px;
  animation: fadeSlideUp 0.45s ease both;
}

.result-block:nth-child(2) {
  animation-delay: 0.06s;
}

.result-block:nth-child(3) {
  animation-delay: 0.12s;
}

@keyframes fadeSlideUp {
  from {
    opacity: 0;
    transform: translateY(18px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.result-block h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--gold-400);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.cat-icon {
  width: 28px;
  height: 28px;
  object-fit: contain;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.06);
  padding: 2px;
}

.result-block h3 .rank-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 6px;
  background: linear-gradient(135deg, var(--gold-500), var(--gold-600));
  color: var(--bg-primary);
  font-size: 0.7rem;
  font-weight: 800;
  flex-shrink: 0;
}

/* ---------- Table ---------- */
.result-block table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.result-block thead th {
  text-align: left;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0 0 10px;
  border-bottom: 1px solid var(--border-glass);
}

.result-block thead th:last-child {
  text-align: right;
}

.result-block tbody td {
  padding: 9px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
  color: var(--text-primary);
}

.result-block tbody td:last-child {
  text-align: right;
  font-weight: 600;
  color: var(--gold-400);
  font-variant-numeric: tabular-nums;
}

.result-block tbody tr {
  transition: background var(--transition);
}

.result-block tbody tr:hover {
  background: rgba(255, 255, 255, 0.03);
}

.tier-cell {
  color: var(--text-secondary);
  font-weight: 500;
}

.has-unlock td {
  opacity: 0.55;
}

.unlock-icon {
  font-size: 0.7rem;
  margin-right: 5px;
  cursor: help;
  opacity: 1;
}

/* ---------- Footer ---------- */
footer {
  text-align: center;
  padding: 24px 24px 40px;
}

.btn-copy {
  font-family: var(--font);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
  padding: 10px 20px;
  cursor: pointer;
  transition: all var(--transition);
}

.btn-copy:hover {
  color: var(--gold-400);
  border-color: var(--border-accent);
  box-shadow: 0 0 20px var(--amber-glow);
}

.btn-copy.copied {
  color: #6ee7b7;
  border-color: rgba(110, 231, 183, 0.3);
}

.footer-note {
  margin-top: 14px;
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .results-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 520px) {
  #selection-panel {
    padding: 20px;
  }

  .controls-row {
    flex-direction: column;
    gap: 12px;
  }

  .controls-row .control-group {
    flex: 1 1 auto;
  }

  .cat-grid {
    grid-template-columns: repeat(auto-fill, minmax(70px, 1fr));
    gap: 8px;
  }

  header {
    padding: 32px 16px 20px;
  }

  main {
    padding: 0 12px 32px;
  }

  .result-block {
    padding: 16px;
  }
}