/* ============================================================
   ラーメン屋台シミュレータ - styles
   ダークテーマ / CSS Grid レイアウト
   ============================================================ */

:root {
  --bg: #0f1419;
  --bg-elev: #161d26;
  --bg-elev-2: #1d2530;
  --border: #2a3441;
  --text: #e2e8f0;
  --text-dim: #94a3b8;
  --text-muted: #64748b;
  --accent: #4a9eff;
  --accent-dim: #2563c4;
  --ok: #4ade80;
  --warn: #fbbf24;
  --bad: #ef4444;
  --header-h: 80px;
  --timeline-h: 100px;
  --footer-h: 60px;
  --panel-w: 320px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  width: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", "Helvetica Neue", sans-serif;
  font-size: 13px;
  line-height: 1.4;
  overflow: hidden;
}

.mono {
  font-family: "SF Mono", "Menlo", "Consolas", "Liberation Mono", monospace;
  font-variant-numeric: tabular-nums;
}

/* ----------- App Grid ----------- */

#app {
  min-width: 1100px;
  height: 100vh;
  display: grid;
  grid-template-rows:
    var(--header-h)
    var(--timeline-h)
    1fr
    var(--footer-h);
  grid-template-areas:
    "header"
    "timeline"
    "middle"
    "footer";
  overflow-x: auto;
  overflow-y: hidden;
}

/* ----------- Header ----------- */

#header {
  grid-area: header;
  background: var(--bg-elev);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 24px;
  gap: 32px;
}

.header-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.02em;
}

.header-stats {
  display: flex;
  gap: 28px;
  align-items: center;
  flex: 1;
}

.stat-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.stat-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

.stat-value {
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
}

/* ----------- Timeline ----------- */

#timeline-section {
  grid-area: timeline;
  background: var(--bg-elev);
  border-bottom: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 8px 16px 4px 16px;
}

.section-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 4px;
}

#timeline {
  flex: 1;
  width: 100%;
  min-height: 0;
}

/* ----------- Middle (canvas + right panel) ----------- */

#middle {
  grid-area: middle;
  display: grid;
  grid-template-columns: 1fr var(--panel-w);
  min-height: 0;
  overflow: hidden;
}

#main-canvas {
  position: relative;
  background: var(--bg);
  border-right: 1px solid var(--border);
  overflow: hidden;
  min-width: 0;
}

#main-canvas canvas {
  display: block;
}

/* ----------- Right Panel ----------- */

#right-panel {
  background: var(--bg-elev);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  overflow-x: hidden;
  min-width: 0;
}

#right-panel::-webkit-scrollbar { width: 8px; }
#right-panel::-webkit-scrollbar-track { background: transparent; }
#right-panel::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }

.panel-section {
  padding: 8px 14px;
  border-bottom: 1px solid var(--border);
}

.section-heading {
  margin: 0 0 6px 0;
  font-size: 9px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-dim);
}

/* ----------- Preset Buttons ----------- */

.preset-buttons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}

.preset-btn {
  background: var(--bg-elev-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 8px 6px;
  font-size: 12px;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.preset-btn:hover {
  background: var(--bg);
  border-color: var(--accent);
  color: var(--accent);
}

.preset-btn.active {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: #fff;
}

/* ----------- Param Rows ----------- */

.param-row {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 2px 8px;
  margin-bottom: 4px;
}

.param-row:last-child {
  margin-bottom: 0;
}

.param-row label {
  font-size: 10px;
  color: var(--text-dim);
  grid-column: 1;
  grid-row: 1;
}

.param-row .param-value {
  font-size: 11px;
  color: var(--accent);
  text-align: right;
  grid-column: 2;
  grid-row: 1;
  min-width: 36px;
}

.param-row input[type="range"] {
  grid-column: 1 / span 2;
  grid-row: 2;
  width: 100%;
  -webkit-appearance: none;
  appearance: none;
  background: transparent;
  height: 12px;
  cursor: pointer;
  margin: 0;
}

.param-row input[type="range"]::-webkit-slider-runnable-track {
  height: 3px;
  background: var(--bg-elev-2);
  border-radius: 2px;
}

.param-row input[type="range"]::-moz-range-track {
  height: 3px;
  background: var(--bg-elev-2);
  border-radius: 2px;
}

.param-row input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 12px;
  height: 12px;
  background: var(--accent);
  border-radius: 50%;
  margin-top: -4.5px;
  border: none;
  cursor: pointer;
  transition: transform 0.1s;
}

.param-row input[type="range"]::-moz-range-thumb {
  width: 12px;
  height: 12px;
  background: var(--accent);
  border-radius: 50%;
  border: none;
  cursor: pointer;
}

.param-row input[type="range"]:hover::-webkit-slider-thumb {
  transform: scale(1.2);
}

/* ----------- Next-call calculation ----------- */

.calc-empty {
  font-size: 11px;
  color: var(--text-muted);
  padding: 4px 0;
}

.calc-body {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.calc-target {
  font-size: 10px;
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 0.06em;
  margin-bottom: 2px;
}

.calc-row {
  display: grid;
  grid-template-columns: 36px 1fr;
  align-items: baseline;
  gap: 6px;
  font-family: "SF Mono", "Menlo", "Consolas", monospace;
  font-size: 11px;
  color: var(--text-dim);
}

.calc-label {
  text-align: right;
  font-size: 10px;
  color: var(--text-muted);
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
}

.calc-label.calc-warn {
  color: var(--warn);
}

.calc-expr {
  display: inline-flex;
  align-items: baseline;
  gap: 4px;
  flex-wrap: wrap;
}

.calc-num {
  color: var(--text);
  font-weight: 600;
}

.calc-num.calc-warn {
  color: var(--warn);
}

.calc-leftover-hint,
.calc-pool-hint {
  font-size: 9px;
  color: var(--text-muted);
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
}

.calc-sub {
  margin: 2px 0 2px 36px;
  padding: 4px 8px;
  background: var(--bg);
  border-left: 2px solid var(--border);
  border-radius: 0 3px 3px 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.calc-sub-title {
  font-size: 9px;
  color: var(--text-dim);
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  margin-bottom: 2px;
}

.calc-sub-row {
  display: grid;
  grid-template-columns: 70px 1fr;
  align-items: baseline;
  gap: 4px;
  font-family: "SF Mono", "Menlo", "Consolas", monospace;
  font-size: 10px;
  color: var(--text-dim);
}

.calc-sub-label {
  text-align: right;
  font-size: 9px;
  color: var(--text-muted);
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
}

.calc-sub-expr {
  display: inline-flex;
  align-items: baseline;
  gap: 3px;
  flex-wrap: wrap;
}

.calc-sub-total {
  margin-top: 2px;
  padding-top: 2px;
  border-top: 1px dashed var(--border);
}

.calc-sub-note {
  margin-top: 2px;
  font-size: 9px;
  color: var(--text-muted);
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  font-style: italic;
}

.calc-final {
  margin-top: 4px;
  padding-top: 4px;
  border-top: 1px solid var(--border);
}

.calc-final-num {
  font-size: 14px;
  color: var(--accent);
}

/* ----------- Mini Graphs ----------- */

.mini-graph {
  margin-bottom: 4px;
}

.mini-graph:last-child {
  margin-bottom: 0;
}

.mini-graph-label {
  font-size: 9px;
  color: var(--text-muted);
  margin-bottom: 2px;
}

.mini-graph canvas {
  display: block;
  width: 100%;
  height: 32px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 3px;
}

/* ----------- Log ----------- */

.log-section {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 120px;
  border-bottom: none;
}

#log-area {
  flex: 1;
  min-height: 100px;
  max-height: 220px;
  overflow-y: auto;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 6px 8px;
  font-family: "SF Mono", "Menlo", "Consolas", monospace;
  font-size: 11px;
  line-height: 1.5;
  color: var(--text-dim);
}

#log-area::-webkit-scrollbar { width: 6px; }
#log-area::-webkit-scrollbar-track { background: transparent; }
#log-area::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

#log-area .log-entry {
  display: block;
  padding: 1px 0;
}

#log-area .log-time {
  color: var(--text-muted);
  margin-right: 6px;
}

#log-area .log-info  { color: var(--text-dim); }
#log-area .log-ok    { color: var(--ok); }
#log-area .log-warn  { color: var(--warn); }
#log-area .log-bad   { color: var(--bad); }

/* ----------- Footer ----------- */

#footer {
  grid-area: footer;
  background: var(--bg-elev);
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  gap: 16px;
}

.footer-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.ctl-btn {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 7px 16px;
  font-size: 12px;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
  letter-spacing: 0.02em;
}

.ctl-btn:hover {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.ctl-btn:active {
  background: var(--accent-dim);
  border-color: var(--accent-dim);
}

#btn-play:hover  { background: var(--ok); border-color: var(--ok); color: #0f1419; }
#btn-reset:hover { background: var(--bad); border-color: var(--bad); }

.speed-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

.speed-select {
  background: var(--bg-elev-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 6px 10px;
  font-size: 12px;
  font-family: inherit;
  cursor: pointer;
}

.speed-select:hover {
  border-color: var(--accent);
}