/* ──────────────────────────────────────
   Forge Master Build Optimizer
   Dark Theme — "Forge" aesthetic
   ────────────────────────────────────── */

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

:root {
  --bg-primary: #1a1a2e;
  --bg-secondary: #16213e;
  --bg-card: #1f2b47;
  --bg-card-hover: #253356;
  --bg-input: #0f1629;
  --border: #2a3a5c;
  --border-glow: #3d5a8c;
  --text-primary: #e0e4f0;
  --text-secondary: #9aa4bf;
  --text-muted: #6b7394;
  --accent: #e2a83e;
  --accent-glow: #f0c060;
  --accent-dark: #b8861e;
  --green: #4ade80;
  --green-bg: rgba(74, 222, 128, 0.12);
  --red: #f87171;
  --red-bg: rgba(248, 113, 113, 0.12);
  --blue: #60a5fa;
  --radius: 8px;
  --radius-sm: 4px;
  --transition: 0.2s ease;
}

html {
  font-size: 15px;
}

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  background-image:
    radial-gradient(ellipse at 50% 0%, rgba(226, 168, 62, 0.06) 0%, transparent 60%),
    radial-gradient(ellipse at 50% 100%, rgba(96, 165, 250, 0.04) 0%, transparent 60%);
}

/* ── Header ─────────────────────────── */
header {
  text-align: center;
  padding: 2rem 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 2rem;
  background: var(--bg-secondary);
}

header h1 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 1px;
}

header .subtitle {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-top: 0.25rem;
  letter-spacing: 2px;
  text-transform: uppercase;
}

/* ── Layout ─────────────────────────── */
main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1rem 3rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.side-by-side {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  align-items: start;
}

/* ── Cards ──────────────────────────── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: border-color var(--transition);
}

.card:hover {
  border-color: var(--border-glow);
}

.card h2 {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.card h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin: 1rem 0 0.5rem;
}

.card h4 {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin: 0.75rem 0 0.5rem;
}

/* ── Badge ──────────────────────────── */
.badge {
  font-size: 0.8rem;
  background: var(--bg-input);
  color: var(--text-secondary);
  padding: 0.15rem 0.6rem;
  border-radius: 20px;
  font-weight: 500;
}

.badge-warn {
  background: var(--red-bg);
  color: var(--red);
}

.badge-active {
  background: rgba(96, 165, 250, 0.15);
  color: var(--blue);
}

/* ── Config Grid ────────────────────── */
.config-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

input[type="number"],
select {
  background: var(--bg-input);
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.75rem;
  font-size: 0.95rem;
  font-family: inherit;
  transition: border-color var(--transition);
  width: 100%;
}

input[type="number"]:focus,
select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(226, 168, 62, 0.2);
}

input[type="number"]:invalid {
  border-color: var(--red);
}

/* ── Radio Group ────────────────────── */
.radio-group {
  display: flex;
  gap: 1rem;
}

.radio-label {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  cursor: pointer;
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  font-size: 0.9rem;
}

.radio-label:hover {
  border-color: var(--accent);
}

.radio-label input[type="radio"] {
  accent-color: var(--accent);
}

.radio-label:has(input:checked) {
  border-color: var(--accent);
  background: rgba(226, 168, 62, 0.1);
  color: var(--accent);
}

/* ── Range Slider ───────────────────── */
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  background: var(--bg-input);
  border-radius: 3px;
  outline: none;
  border: 1px solid var(--border);
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  border: 2px solid var(--bg-card);
  transition: transform var(--transition);
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.15);
}

input[type="range"]::-moz-range-thumb {
  width: 18px; height: 18px; border-radius: 50%;
  background: var(--accent); cursor: pointer; border: 2px solid var(--bg-card);
}

.btn-mod:focus-visible, .btn-primary:focus-visible, .btn-secondary:focus-visible,
.btn-expand:focus-visible, .btn-copy:focus-visible, select:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 2px;
}

.results-table-wrapper { -webkit-overflow-scrolling: touch; }

/* ── Shared Modifier Table ──────────── */
.mod-table-container {
  grid-column: 1 / -1;
  margin-top: 0;
}

.mod-table-row {
  display: grid;
  grid-template-columns: 180px 1fr 1fr;
  gap: 0.5rem;
  align-items: center;
  padding: 0.35rem 0.5rem;
  min-height: 42px;
  box-sizing: border-box;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition);
}

.mod-table-row:hover {
  border-color: var(--border-glow);
}

.mod-table-cat {
  background: transparent;
  border: none;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  padding-top: 0.6rem;
  padding-bottom: 0.2rem;
  min-height: auto;
}

.mod-table-cat:hover {
  border-color: transparent;
}

.mod-table-name {
  display: flex;
  flex-direction: column;
}

.mod-table-cell {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.mod-table-hdr {
  background: var(--bg-secondary);
  border-color: var(--accent);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  min-height: 30px;
}

.mod-table-hdr:hover {
  border-color: var(--accent);
}

.mod-table-cat .mod-table-cell {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Vertical divider between player and opponent */
.mod-table-cell.mod-table-player {
  border-right: 2px solid var(--border);
  padding-right: 0.75rem;
}

.mod-table-cell.mod-table-opp {
  padding-left: 0.75rem;
}

/* Hide opponent cells when panel is collapsed */
#opponent-panel.collapsed ~ .mod-table-container .mod-table-opp,
#opponent-panel.collapsed ~ .mod-table-container .mod-table-hdr .mod-table-opp,
#opponent-panel.collapsed ~ .mod-table-container .mod-table-cat .mod-table-opp {
  display: none;
}

#opponent-panel.collapsed ~ .mod-table-container .mod-table-row {
  grid-template-columns: 180px 1fr;
}

#opponent-panel.collapsed ~ .mod-table-container .mod-table-player {
  border-right: none;
  padding-right: 0;
}

#opponent-panel.collapsed ~ .mod-table-container .mod-table-hdr .mod-table-player {
  border-right: none;
  padding-right: 0;
}

.mod-name {
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--text-primary);
}

.mod-detail {
  font-size: 0.72rem;
  color: var(--text-muted);
}

.mod-controls {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  flex-shrink: 0;
}

.mod-counter {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 28px;
  height: 28px;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--accent);
  background: rgba(226, 168, 62, 0.1);
  border-radius: var(--radius-sm);
}

.mod-total {
  min-width: 55px;
  text-align: right;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--green);
  font-variant-numeric: tabular-nums;
  font-family: 'Cascadia Code', 'Consolas', monospace;
  flex-shrink: 0;
  transition: opacity 0.2s ease;
}

.btn-mod {
  width: 28px;
  height: 28px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  color: var(--text-primary);
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  line-height: 1;
}

.btn-mod:hover:not(:disabled) {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-mod:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.btn-plus:hover:not(:disabled) {
  background: rgba(74, 222, 128, 0.15);
  border-color: var(--green);
  color: var(--green);
}

.btn-minus:hover:not(:disabled) {
  background: rgba(248, 113, 113, 0.15);
  border-color: var(--red);
  color: var(--red);
}

/* ── Collapsible ────────────────────── */
.collapsible .collapse-content {
  overflow: hidden;
  transition: max-height 0.35s ease, opacity 0.25s ease;
  max-height: 3000px;
  opacity: 1;
}

.collapsible.collapsed .collapse-content {
  max-height: 0;
  opacity: 0;
  padding-top: 0;
  padding-bottom: 0;
}

.collapse-toggle {
  cursor: pointer;
  user-select: none;
  transition: color var(--transition);
}

.collapse-toggle:hover {
  color: var(--accent);
}

/* ── Action Bar ─────────────────────── */
.action-bar {
  display: flex;
  justify-content: center;
  gap: 1rem;
  padding: 0.5rem 0;
}

.btn-primary {
  background: var(--accent);
  color: #1a1a2e;
  border: none;
  padding: 0.75rem 2.5rem;
  font-size: 1.05rem;
  font-weight: 700;
  border-radius: var(--radius);
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: all var(--transition);
  box-shadow: 0 2px 8px rgba(226, 168, 62, 0.25);
}

.btn-primary:hover {
  background: var(--accent-glow);
  box-shadow: 0 4px 16px rgba(226, 168, 62, 0.4);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 1px 4px rgba(226, 168, 62, 0.2);
}

.btn-secondary {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  padding: 0.75rem 1.5rem;
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
}

.btn-secondary:hover {
  border-color: var(--text-secondary);
  color: var(--text-primary);
}

/* ── Results Table ──────────────────── */
.results-table-wrapper {
  overflow-x: auto;
  margin-top: 0.75rem;
}

.results-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.results-table thead th {
  background: var(--bg-input);
  color: var(--text-secondary);
  font-weight: 600;
  text-align: right;
  padding: 0.6rem 0.75rem;
  border-bottom: 2px solid var(--border);
  white-space: nowrap;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.results-table thead th:first-child,
.results-table thead th:last-child {
  text-align: center;
}

.results-table thead th.sortable:hover {
  color: var(--accent);
}

.results-table tbody td {
  padding: 0.55rem 0.75rem;
  text-align: right;
  border-bottom: 1px solid var(--border);
  font-variant-numeric: tabular-nums;
  font-family: 'Cascadia Code', 'Consolas', monospace;
}

.results-table tbody td:first-child,
.results-table tbody td:nth-child(7),
.results-table tbody td:last-child {
  text-align: center;
}

.result-row {
  transition: background var(--transition);
  cursor: pointer;
}

.result-row:hover {
  background: var(--bg-card-hover);
}

.result-row.top-1 td:first-child {
  color: var(--accent);
  font-weight: 700;
}

.result-row.top-2 td:first-child {
  color: #c0c0c0;
  font-weight: 700;
}

.result-row.top-3 td:first-child {
  color: #cd7f32;
  font-weight: 700;
}

td.best {
  color: var(--green);
  font-weight: 700;
}

.cell-green  { color: var(--green); font-weight: 700; }
.cell-accent { color: var(--accent); font-weight: 700; }
.cell-red    { color: var(--red);   font-weight: 700; }

.cell-synergy {
  font-size: 1rem;
}

/* ── Detail Rows ────────────────────── */
.detail-row td {
  padding: 0 !important;
}

.build-detail {
  padding: 1rem 1.25rem;
  background: var(--bg-input);
  border-top: 1px solid var(--border);
}

.detail-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  margin-bottom: 0.75rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.detail-stats strong {
  color: var(--text-primary);
}

/* ── Modifier Count List ────────────── */
.mod-count-list {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  margin: 0.5rem 0;
}

.mod-count-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.3rem 0.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
}

.mod-count-name {
  font-weight: 600;
  color: var(--text-primary);
  min-width: 120px;
}

.mod-count-slots {
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  font-family: 'Cascadia Code', 'Consolas', monospace;
  min-width: 60px;
}

.mod-count-total {
  color: var(--text-muted);
  font-size: 0.8rem;
}

.mod-count-total-row {
  background: transparent;
  border-top: 2px solid var(--border);
  font-weight: 600;
  margin-top: 0.25rem;
  padding-top: 0.5rem;
}

.mod-count-total-row .mod-count-slots {
  color: var(--text-primary);
}

/* ── Buttons (detail/copy) ──────────── */
.btn-expand {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  padding: 0.3rem 0.6rem;
  font-size: 0.8rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-expand:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-copy {
  background: var(--bg-card);
  color: var(--text-secondary);
  border: 1px solid var(--border);
  padding: 0.4rem 1rem;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  margin-top: 0.5rem;
  transition: all var(--transition);
}

.btn-copy:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-sim-build {
  background: var(--bg-card); color: var(--accent);
  border: 1px solid var(--accent); padding: 0.4rem 1rem;
  font-size: 0.85rem; border-radius: var(--radius-sm);
  cursor: pointer; margin-top: 0.5rem; transition: all var(--transition);
}
.btn-sim-build:hover { background: var(--accent); color: var(--bg-primary); }

.btn-apply-player, .btn-apply-opp {
  background: var(--bg-card); color: var(--blue);
  border: 1px solid var(--blue); padding: 0.4rem 1rem;
  font-size: 0.85rem; border-radius: var(--radius-sm);
  cursor: pointer; margin-top: 0.35rem; transition: all var(--transition);
}
.btn-apply-player:hover { background: var(--blue); color: var(--bg-primary); }
.btn-apply-opp:hover { background: var(--red); color: var(--bg-primary); border-color: var(--red); }
.btn-apply-opp { color: var(--red); border-color: var(--red); }

.sim-inline { margin-top: 0.5rem; }

/* ── Interval Display ────────────────── */
.interval-display {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.45rem 0.75rem;
  background: rgba(226, 168, 62, 0.08);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  color: var(--text-secondary);
  align-self: end;
  min-height: 38px;
  box-sizing: border-box;
}

.interval-display strong {
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  font-family: 'Cascadia Code', 'Consolas', monospace;
}

.interval-detail {
  color: var(--text-muted);
  font-size: 0.78rem;
}

/* ── Placeholder / Loading ──────────── */
.placeholder {
  color: var(--text-muted);
  text-align: center;
  padding: 2rem 1rem;
  font-style: italic;
}

.error {
  color: var(--red);
  text-align: center;
  padding: 1rem;
}

.loading-dots::after {
  content: '';
  animation: dots 1.5s steps(4, end) infinite;
}

@keyframes dots {
  0%   { content: ''; }
  25%  { content: '.'; }
  50%  { content: '..'; }
  75%  { content: '...'; }
  100% { content: ''; }
}

/* ── Responsive ─────────────────────── */
@media (max-width: 768px) {
  .side-by-side {
    grid-template-columns: 1fr;
  }
  main {
    padding: 0 0.5rem 2rem;
  }

  .card {
    padding: 1rem;
  }

  .config-grid {
    grid-template-columns: 1fr;
  }

  header h1 {
    font-size: 1.5rem;
  }

  .btn-primary {
    padding: 0.65rem 1.5rem;
    font-size: 0.95rem;
  }

  .results-table {
    font-size: 0.8rem;
  }

  .btn-mod { width: 38px; height: 38px; font-size: 1.1rem; }
  .mod-counter { min-width: 32px; height: 32px; }
  .mod-table-row { grid-template-columns: 96px 1fr 1fr; gap: 0.35rem; padding: 0.3rem 0.4rem; }
  #opponent-panel.collapsed ~ .mod-table-container .mod-table-row { grid-template-columns: 96px 1fr; }
  .mod-detail { font-size: 0.65rem; }
  .mod-total { min-width: 44px; font-size: 0.78rem; }
  .mod-table-cell.mod-table-player { padding-right: 0.4rem; }
  .mod-table-cell.mod-table-opp { padding-left: 0.4rem; }
  .action-bar { flex-wrap: wrap; }
  .results-table thead th, .results-table tbody td { padding: 0.45rem 0.5rem; }
  .sim-grid { grid-template-columns: 1fr; }
  .detail-stats { gap: 0.4rem 1rem; }
  header { padding: 1.25rem 1rem 1rem; margin-bottom: 1rem; }
}

/* ── Battle Simulator ───────────────── */
.sim-controls { display: flex; gap: 0.4rem; align-items: stretch; }
#simulate-count {
  background: var(--bg-input); color: var(--text-primary);
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 0.5rem 0.6rem; font-family: inherit; cursor: pointer;
}
.sim-result { margin-top: 0.75rem; }
.sim-result h3 { margin: 0.5rem 0; }
.sim-banner {
  padding: 0.6rem 1rem; border-radius: var(--radius-sm);
  font-weight: 700; margin-bottom: 0.75rem; text-align: center;
}
.sim-player { background: var(--green-bg); color: var(--green); }
.sim-opponent { background: var(--red-bg); color: var(--red); }
.sim-draw { background: var(--bg-input); color: var(--text-secondary); }
.sim-time { font-weight: 400; color: var(--text-secondary); }
.sim-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; }
.sim-side {
  background: var(--bg-input); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 0.75rem 1rem;
}
.sim-stat {
  display: flex; justify-content: space-between;
  font-size: 0.85rem; color: var(--text-secondary); padding: 0.15rem 0;
}
.sim-stat strong { color: var(--text-primary); font-variant-numeric: tabular-nums; }

/* ── Scrollbar ──────────────────────── */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--border-glow);
}