/* View Order editorial redesign */

:root {
  --red:       #c8102e;
  --ink:       #111111;
  --ink-mid:   #444444;
  --ink-light: #888888;
  --rule:      #d8d8d8;
  --bg:        #f7f6f4;
  --bg-panel:  #ffffff;
  --accent-bg: #fdf2f4;
  --serif:     'Source Serif 4', Georgia, serif;
  --sans:      'Inter', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --mono:      'Courier New', monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: var(--sans);
  font-size: 14px;
  background: var(--bg);
  color: var(--ink);
  min-height: 100vh;
  padding: 0;
}

.site-header {
  background: var(--bg-panel);
  border-bottom: 3px solid var(--ink);
  padding: 0 32px;
  display: flex;
  align-items: stretch;
  gap: 0;
  height: 56px;
}

.site-header-logo {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 20px;
  color: var(--ink);
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 10px;
  padding-right: 24px;
  border-right: 1px solid var(--rule);
  text-decoration: none;
}

.site-header-logo svg { flex-shrink: 0; }

.site-header-subtitle {
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-light);
  display: flex;
  align-items: center;
  padding-left: 20px;
}

.container {
  max-width: 1360px;
  margin: 0 auto;
  padding: 32px 32px 64px;
}

h1 { display: none; }

.tab-bar {
  display: flex;
  gap: 0;
  border-bottom: 2px solid var(--ink);
  margin-bottom: 32px;
}

.tab-btn {
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 12px 22px;
  border: none;
  background: transparent;
  color: var(--ink-mid);
  cursor: pointer;
  border-bottom: 3px solid transparent;
  margin-bottom: -2px;
  transition: color 0.15s, border-color 0.15s;
  white-space: nowrap;
}

.tab-btn:hover { color: var(--ink); }

.tab-btn.active {
  color: var(--red);
  border-bottom-color: var(--red);
  background: transparent;
  box-shadow: none;
}

.tab-panel { display: none; }
.tab-panel.active { display: block; }

.tab-dropdown {
  position: relative;
  display: inline-flex;
}

.tab-dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  z-index: 200;
  background: white;
  border: 1px solid var(--rule);
  border-top: 2px solid var(--ink);
  min-width: 140px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.tab-dropdown:hover .tab-dropdown-menu,
.tab-dropdown:focus-within .tab-dropdown-menu { display: block; }

.tab-dropdown-menu button {
  display: block;
  width: 100%;
  padding: 10px 16px;
  text-align: left;
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: none;
  background: white;
  color: var(--ink-mid);
  cursor: pointer;
  border-bottom: 1px solid var(--rule);
  transition: background 0.12s, color 0.12s;
}

.tab-dropdown-menu button:last-child { border-bottom: none; }
.tab-dropdown-menu button:hover { background: var(--bg); color: var(--ink); }
.tab-dropdown-menu button.selected { color: var(--red); }

h2, h3 {
  font-family: var(--serif);
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.01em;
}

h2 {
  font-size: 18px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--rule);
  margin-bottom: 20px;
}

h3 {
  font-size: 13px;
  font-weight: 600;
  font-family: var(--sans);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-mid);
  margin-bottom: 10px;
}

.control-panel {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px 32px;
  margin-bottom: 32px;
  padding: 24px;
  background: var(--bg-panel);
  border: 1px solid var(--rule);
  border-top: 3px solid var(--ink);
}

.control-panel h3 {
  grid-column: 1 / -1;
  font-family: var(--serif);
  font-size: 15px;
  font-weight: 700;
  text-transform: none;
  letter-spacing: 0;
  color: var(--ink);
  border-bottom: 1px solid var(--rule);
  padding-bottom: 6px;
  margin-bottom: 0;
  margin-top: 12px;
}

.control-panel h3:first-child { margin-top: 0; }

.control-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  position: relative;
}

.control-group label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--ink-mid);
  text-transform: uppercase;
}

.control-group label:has(> input[type="checkbox"]) {
  display: flex;
  align-items: center;
  font-weight: 600;
  cursor: pointer;
  user-select: none;
  text-transform: uppercase;
  font-size: 12px;
}

.control-group input[type="checkbox"] {
  margin-right: 8px;
  cursor: pointer;
  accent-color: var(--red);
}

.control-group span {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 14px;
  color: var(--red);
}

.control-group.disabled label { color: #bbb; }
.control-group.disabled .slider,
.control-group.disabled select { opacity: 0.4; cursor: not-allowed; }

.slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 20px;
  background: transparent;
  outline: none;
  cursor: pointer;
  position: relative;
  z-index: 3;
  margin: 0;
  padding: 0;
  border: none;
}

.slider::-webkit-slider-runnable-track {
  width: 100%;
  height: 2px;
  background: var(--ink);
  border-radius: 0;
  border: none;
}

.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  background: var(--red);
  border: none;
  border-radius: 0;
  cursor: pointer;
  margin-top: -6px;
  transition: transform 0.15s;
}

.slider::-webkit-slider-thumb:hover { transform: scale(1.3); }

.slider::-moz-range-track {
  width: 100%;
  height: 2px;
  background: var(--ink);
  border-radius: 0;
  border: none;
}

.slider::-moz-range-thumb {
  width: 14px;
  height: 14px;
  background: var(--red);
  border: none;
  border-radius: 0;
  cursor: pointer;
  box-shadow: none;
  transition: transform 0.15s;
}

.slider::-moz-range-thumb:hover { transform: scale(1.3); }

select {
  padding: 7px 10px;
  border: 1px solid var(--rule);
  border-radius: 0;
  font-family: var(--sans);
  font-size: 13px;
  cursor: pointer;
  background: white;
  color: var(--ink);
  transition: border-color 0.15s;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%23444'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 28px;
}

select:hover { border-color: var(--ink); }
select:focus { outline: none; border-color: var(--red); }
.plot-controls {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 24px;
  padding: 16px 20px;
  background: var(--bg-panel);
  border: 1px solid var(--rule);
}

.plot-control-pair {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 14px;
  align-items: center;
}

.highlight-style-control {
  justify-content: center;
  min-width: 132px;
}

.switch-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink-light);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  cursor: pointer;
  user-select: none;
}

.switch-label input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.switch-label > span:not(.switch-track) {
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 700;
  color: var(--ink-light);
}

.switch-track {
  position: relative;
  width: 40px;
  height: 20px;
  border: 1px solid var(--ink);
  background: #f7f7f7;
  transition: background 0.15s ease;
}

.switch-track::after {
  content: "";
  position: absolute;
  top: 2px;
  left: 2px;
  width: 14px;
  height: 14px;
  background: var(--ink);
  transition: transform 0.15s ease, background 0.15s ease;
}

.switch-label input:checked + .switch-track {
  background: var(--red);
  border-color: var(--red);
}

.switch-label input:checked + .switch-track::after {
  transform: translateX(20px);
  background: white;
}

.switch-label input:focus-visible + .switch-track {
  outline: 2px solid var(--red);
  outline-offset: 2px;
}

.plots-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 24px;
}

.plot-column {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.colorbar-canvas {
  width: 100%;
  height: 48px;
  background: #eee;
  border: 1px solid var(--rule);
}

.plot-wrapper {
  width: 100%;
  background: white;
  border: 1px solid var(--rule);
  display: flex;
  justify-content: center;
}

.export-button {
  width: 100%;
  margin-top: 8px;
  padding: 9px 16px;
  background: white;
  color: var(--ink);
  border: 1px solid var(--ink);
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.export-button:hover { background: var(--ink); color: white; }
.export-button:active { background: var(--red); border-color: var(--red); color: white; }

.export-row {
  margin-bottom: 20px;
  margin-top: -12px;
}

.export-row .export-button { margin-top: 0; }

.info-panel {
  background: var(--ink);
  color: white;
  padding: 16px 24px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-top: 8px;
}

.info-panel p {
  font-size: 13px;
  display: flex;
  gap: 10px;
  align-items: center;
  font-family: var(--sans);
}

.info-panel span {
  background: var(--red);
  padding: 3px 10px;
  font-family: var(--mono);
  font-weight: bold;
  font-size: 13px;
}

/* ── Performance panel ─────────────────────────────────────── */
.perf-panel {
  background: #1a1a1a;
  color: #ccc;
  padding: 10px 16px;
  margin-top: 2px;
  font-family: var(--mono);
  font-size: 12px;
}
.perf-panel summary {
  cursor: pointer;
  color: #aaa;
  user-select: none;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.perf-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 6px;
}
.perf-table th {
  text-align: left;
  color: #888;
  font-weight: normal;
  padding: 1px 8px 1px 0;
  border-bottom: 1px solid #333;
  font-size: 11px;
}
.perf-table td {
  padding: 2px 8px 2px 0;
  min-width: 60px;
}
.perf-table tr:nth-child(even) td { color: #ddd; }
.perf-table tr.perf-total td { border-top: 1px solid #444; color: #fff; padding-top: 4px; }
/* bar encoded via inline background on the ms cell */

.spinner {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(247,246,244,0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}

.spinner::after {
  content: '';
  width: 32px;
  height: 32px;
  border: 3px solid var(--rule);
  border-top: 3px solid var(--red);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.spinner.hidden { display: none !important; }

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.slider-ticks {
  position: absolute;
  left: 0;
  right: auto;
  top: 50%;
  height: 0;
  pointer-events: none;
  z-index: 1;
}

.slider-ticks span {
  position: absolute;
  width: 1px;
  height: 8px;
  background: rgba(17,17,17,0.35);
  top: 50%;
  transform: translate(-50%, -50%);
}

.control-group.disabled .slider-ticks span { background: rgba(150,150,150,0.3); }

.mprage-params-grid {
  display: block;
  width: 100%;
}

.mprage-panel {
  background: var(--bg-panel);
  border: 1px solid var(--rule);
  border-top: 3px solid var(--ink);
  padding: 22px;
  width: 100%;
  box-sizing: border-box;
}

.mprage-panel h2 {
  font-family: var(--serif);
  font-size: 16px;
  color: var(--ink);
  border-bottom-color: var(--rule);
  margin-bottom: 16px;
}

.mprage-panel .control-group { margin-bottom: 12px; }

.params-fields-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  align-items: start;
}

.params-fields-col {
  min-width: 0;
}

.mprage-panel .control-group label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 4px;
  font-weight: 600;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.mprage-panel .control-group label .value {
  font-family: var(--mono);
  background: var(--accent-bg);
  padding: 2px 8px;
  color: var(--red);
  font-weight: bold;
  font-size: 12px;
  border: 1px solid #f0c0c8;
}

.mprage-etl-note {
  background: var(--bg);
  border-left: 3px solid var(--red);
  padding: 8px 12px;
  color: var(--ink-mid);
  font-size: 12px;
  margin-bottom: 14px;
}

.mprage-btn-simulate {
  width: 100%;
  padding: 13px 20px;
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: var(--ink);
  color: white;
  border: none;
  cursor: pointer;
  transition: background 0.15s;
  margin-top: 16px;
  grid-column: 1 / -1;
}

.mprage-btn-simulate:hover { background: #2b2b2b; }
.mprage-btn-simulate:disabled { opacity: 0.45; cursor: default; }

.mprage-panel .mprage-btn-simulate {
  margin-top: 8px;
  grid-column: auto;
}

.mprage-plot-panel {
  background: #0f0f14;
  padding: 18px;
  border: 1px solid #2a2a3a;
}

.mprage-plot-panel h3 {
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #888;
  margin-bottom: 10px;
}

.mprage-chart-wrapper {
  position: relative;
  height: 300px;
  background: #07070d;
  padding: 8px;
}

.mprage-chart-wrapper.tall { height: 380px; }

.mprage-plots-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 20px;
}

.mprage-plots-row.full { grid-template-columns: 1fr; }

.mprage-phase-legend {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
  margin-top: 10px;
  font-size: 11px;
  font-family: var(--sans);
}

.mprage-phase-legend div {
  padding: 5px 8px;
  color: #c0c0d0;
}

@media (max-width: 1024px) {
  .plots-container { grid-template-columns: 1fr; }
  .control-panel { grid-template-columns: 1fr; }
}

@media (max-width: 900px) {
  .mprage-params-grid { grid-template-columns: 1fr; }
  .mprage-plots-row { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .container { padding: 20px 16px 48px; }
  .site-header { padding: 0 16px; }
  .plots-container { gap: 16px; margin-bottom: 20px; }
  .info-panel { grid-template-columns: 1fr; }
}

@media (max-width: 700px) {
  .plot-controls { grid-template-columns: 1fr; }
  .plot-control-pair { grid-template-columns: 1fr; }
}