:root {
  color-scheme: light dark;
  --bg: #f4f5f3;
  --paper: #ffffff;
  --ink: #181b1a;
  --muted: #64706c;
  --line: #1e2422;
  --section: #00ffff;
  --input: #ffe49a;
  --manual: #a5d28f;
  --warning: #fff4d5;
  --accent: #6e3ac7;
  --positive: #07865c;
  --negative: #d9304f;
  --research-label-column: 230px;
  --research-value-column: 190px;
}

@media (prefers-color-scheme: dark) {
  :root { --bg: #111514; --paper: #1b211f; --ink: #f2f5f3; --muted: #a9b4af; --line: #75807b; --section: #00ffff; --input: #6b5522; --manual: #355d3b; --warning: #463b1f; --accent: #bd91ff; }
}

[data-theme="light"] { color-scheme: light; --bg: #f4f5f3; --paper: #fff; --ink: #181b1a; --muted: #64706c; --line: #1e2422; --section: #00ffff; --input: #ffe49a; --manual: #a5d28f; --warning: #fff4d5; --accent: #6e3ac7; }
[data-theme="dark"] { color-scheme: dark; --bg: #111514; --paper: #1b211f; --ink: #f2f5f3; --muted: #a9b4af; --line: #75807b; --section: #00ffff; --input: #6b5522; --manual: #355d3b; --warning: #463b1f; --accent: #bd91ff; }

* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 14px/1.35 Inter, ui-sans-serif, system-ui, sans-serif; }
.loading-overlay { position: fixed; z-index: 1000; inset: 0; display: grid; place-items: center; background: color-mix(in srgb, var(--bg), transparent 20%); backdrop-filter: blur(2px); }
.loading-overlay[hidden] { display: none; }
.loading-card { display: flex; align-items: center; gap: 12px; min-width: 210px; padding: 18px 22px; border: 1px solid var(--line); border-radius: 8px; background: var(--paper); box-shadow: 0 12px 38px rgba(0,0,0,.22); }
.loading-spinner { width: 22px; height: 22px; border: 3px solid color-mix(in srgb, var(--accent), transparent 72%); border-top-color: var(--accent); border-radius: 50%; animation: loading-spin .75s linear infinite; }
@keyframes loading-spin { to { transform: rotate(360deg); } }
.is-loading .workbook { opacity: .42; }
.workbook { width: min(1120px, calc(100% - 24px)); margin: 20px auto; background: var(--paper); border: 1px solid var(--line); box-shadow: 0 12px 38px rgba(0,0,0,.12); }
.app-header { display: grid; grid-template-columns: 82px 260px 1fr auto; align-items: center; gap: 18px; padding: 16px; border-bottom: 2px solid var(--line); }
.app-brand { display: block; width: 82px; color: inherit; }
.app-logo { display: block; width: 82px; height: 82px; object-fit: contain; }
.ticker-form { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 8px; font-size: 20px; }
.ticker-form input { width: 100%; font-size: 20px; font-weight: 800; text-transform: uppercase; background: var(--paper); }
.company-heading h1 { margin: 0; font-size: 22px; }
.company-heading p { margin: 3px 0 0; color: var(--muted); }
.actions { display: flex; gap: 7px; }
button, .button, input, textarea, select { border: 1px solid var(--line); border-radius: 3px; color: inherit; font: inherit; }
button, .button { padding: 7px 10px; background: var(--paper); text-decoration: none; cursor: pointer; }
button:hover, .button:hover { outline: 2px solid var(--accent); }
.icon-button { width: 36px; height: 36px; display: inline-flex; align-items: center; justify-content: center; padding: 7px; background: var(--paper); color: var(--ink); text-decoration: none; border: 1px solid var(--line); border-radius: 50%; }
.icon-button svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.ticker-form .icon-button { width: 34px; height: 34px; }
.theme-icon-sun { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-icon-moon { display: none; }
  :root:not([data-theme="light"]) .theme-icon-sun { display: block; }
}
[data-theme="dark"] .theme-icon-moon { display: none; }
[data-theme="dark"] .theme-icon-sun { display: block; }
[data-theme="light"] .theme-icon-moon { display: block; }
[data-theme="light"] .theme-icon-sun { display: none; }
.warnings { margin: 10px 16px; padding: 8px 12px; background: var(--paper); border: 1px solid #b89538; }
.warnings ul { margin: 4px 0; padding-left: 18px; }
.ticker-error { margin: 10px 16px; padding: 10px 12px; border: 1px solid var(--negative); border-left-width: 4px; background: color-mix(in srgb, var(--negative), transparent 90%); }
.ticker-error p { margin: 3px 0 0; }
.ticker-form input[aria-invalid="true"] { border-color: var(--negative); outline: 2px solid color-mix(in srgb, var(--negative), transparent 70%); }
.sheet-row { display: grid; grid-template-columns: minmax(250px, 41%) minmax(140px, 19%) 1fr; }
.sheet-row > * { min-width: 0; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 6px 8px; }
.sheet-row > *:last-child { border-right: 0; }
.research-row { grid-template-columns: var(--research-label-column) var(--research-value-column) minmax(280px, 1fr) 82px; }
.research-row .label, .research-row > label { white-space: nowrap; }
.research-row .value { white-space: nowrap; }
.row-note { align-self: stretch; width: 100%; height: 33px; min-height: 33px; overflow: hidden; resize: none; border-top: 0; border-left: 0; border-radius: 0; background: var(--paper); line-height: 1.35; }
.source-cell { position: relative; text-align: center; color: var(--muted); font-size: 11px; }
.source-cell .provenance { display: block; }
.source-cell .provenance[open] dl { position: absolute; z-index: 20; top: 22px; right: 4px; width: 330px; padding: 9px; border: 1px solid var(--line); border-radius: 4px; background: var(--paper); color: var(--ink); box-shadow: 0 8px 24px rgba(0,0,0,.2); text-align: left; }
.manual-source { display: flex; align-items: center; justify-content: center; }
section h2 { margin: 0; padding: 6px 10px; text-align: center; font-size: 16px; color: #071514; background: var(--section); border-bottom: 1px solid var(--line); }
.value { text-align: center; font-variant-numeric: tabular-nums; }
.text-value { text-align: left; }
.additional { color: var(--muted); }
.secondary { margin-right: 10px; color: var(--ink); }
.provenance { display: inline-block; font-size: 11px; }
.provenance summary { cursor: pointer; color: var(--accent); }
.provenance dl { display: grid; grid-template-columns: 64px 1fr; gap: 2px 6px; margin: 5px 0 0; }
.provenance dt { font-weight: 700; }
.provenance dd { margin: 0; overflow-wrap: anywhere; }
.status-missing, .status-error { color: #bc2c2c; }
.status-manual { background: var(--manual); }
.date-row { background: var(--paper); }
.general-layout { display: grid; grid-template-columns: minmax(0, 3fr) minmax(290px, 2fr); }
.general-layout .sheet-row { grid-template-columns: 230px var(--research-value-column) minmax(0, 1fr); }
.price-chart { margin: 0; padding: 14px 16px; border-bottom: 1px solid var(--line); border-left: 1px solid var(--line); color: var(--positive); }
.chart-heading { display: block; }
.price-chart figcaption { color: var(--ink); font-size: 16px; font-weight: 800; }
.chart-periods { display: flex; gap: 3px; margin-top: 7px; }
.chart-periods button { min-width: 29px; padding: 4px; border: 0; border-radius: 5px; background: transparent; color: var(--muted); font-size: 11px; font-weight: 800; }
.chart-periods button.active { background: color-mix(in srgb, var(--accent), transparent 78%); color: var(--accent); }
.chart-summary { display: flex; align-items: baseline; gap: 8px; margin-top: 8px; color: var(--ink); font-variant-numeric: tabular-nums; }
.chart-summary strong { font-size: 21px; }
.chart-summary span { font-size: 12px; font-weight: 700; }
.chart-summary .positive { color: var(--positive); }
.chart-summary .negative { color: var(--negative); }
.chart-shell { position: relative; margin-top: 4px; color: var(--positive); }
.chart-shell.chart-down { color: var(--negative); }
.price-chart svg { display: block; width: 100%; touch-action: none; }
.chart-line { fill: none; stroke: currentColor; stroke-width: 2; vector-effect: non-scaling-stroke; }
.chart-area { fill: url(#price-area-gradient); stroke: none; }
.chart-grid line { stroke: var(--muted); stroke-width: .6; stroke-dasharray: 2 4; opacity: .45; }
.chart-grid text { fill: var(--muted); font-size: 10px; }
.chart-crosshair { stroke: var(--ink); stroke-width: 1; stroke-dasharray: 3 3; opacity: 0; }
.chart-point { fill: var(--paper); stroke: currentColor; stroke-width: 2; opacity: 0; }
.chart-tooltip { position: absolute; width: 130px; padding: 7px 9px; border: 1px solid var(--line); border-radius: 5px; background: color-mix(in srgb, var(--paper), transparent 4%); color: var(--ink); box-shadow: 0 5px 16px rgba(0,0,0,.18); opacity: 0; pointer-events: none; font-size: 11px; }
.chart-tooltip strong, .chart-tooltip span { display: block; }
.metric-link { color: var(--accent); font-weight: 700; text-decoration: underline; text-underline-offset: 2px; }
.financial-chart-panel { padding: 12px 16px 8px; border-bottom: 1px solid var(--line); background: color-mix(in srgb, var(--paper), var(--accent) 3%); }
.financial-chart-panel figure { margin: 0; }
.financial-chart-panel figcaption { margin-bottom: 4px; font-size: 14px; font-weight: 800; text-align: center; }
.financial-chart-panel svg { display: block; width: min(100%, 760px); margin: 0 auto; }
.financial-chart-grid line { stroke: var(--muted); stroke-width: .6; stroke-dasharray: 2 4; opacity: .45; }
.financial-chart-grid text, .financial-chart-value { fill: var(--muted); font-size: 10px; }
.financial-chart-line { fill: none; stroke: var(--accent); stroke-width: 2.5; vector-effect: non-scaling-stroke; }
.financial-chart-point { fill: var(--paper); stroke: var(--accent); stroke-width: 2.5; }
.input-row input, .input-row textarea, .input-row select { width: 100%; background: var(--manual); padding: 5px; }
.input-row .value > input:not([type="hidden"]) { height: 100%; padding: 0; border: 0; border-radius: 0; background: transparent; }
.neutral-input-row input, .neutral-input-row textarea { background: var(--paper); }
.input-row textarea { min-height: 33px; resize: none; }
.input-note { color: var(--muted); }
.metric-good { background: #93c47d; color: #000; font-weight: 800; }
.metric-caution { background: #fff200; color: #000; font-weight: 800; }
.metric-bad { background: #f00; color: #000; font-weight: 800; }
.color-cell { position: relative; }
.color-cell.color-override-red { background: #f00; color: #000; font-weight: 800; }
.color-cell.color-override-yellow { background: #fff200; color: #000; font-weight: 800; }
.color-cell.color-override-green { background: #93c47d; color: #000; font-weight: 800; }
.color-cell[class*="color-override-"] > input:not([type="hidden"]) { background: transparent; color: #000; font-weight: 800; }
.cell-color-picker { position: absolute; z-index: 10; top: 50%; right: 5px; display: flex; gap: 3px; padding: 3px; border: 1px solid color-mix(in srgb, var(--line), transparent 35%); border-radius: 12px; background: color-mix(in srgb, var(--paper), transparent 32%); box-shadow: 0 2px 7px rgba(0,0,0,.16); opacity: 0; pointer-events: none; transform: translateY(-50%); transition: opacity .12s ease; backdrop-filter: blur(3px); }
.color-cell:hover .cell-color-picker, .color-cell:focus-within .cell-color-picker { opacity: 1; pointer-events: auto; }
.cell-color-option { width: 16px; height: 16px; min-width: 16px; padding: 0; border: 1px solid rgba(0,0,0,.6); border-radius: 50%; }
.cell-color-option:hover, .cell-color-option:focus-visible { outline: 2px solid var(--ink); outline-offset: 1px; }
.cell-color-option[aria-pressed="true"] { box-shadow: 0 0 0 1px var(--paper), 0 0 0 2px var(--ink); }
.color-option-red { background: #f00; }
.color-option-yellow { background: #fff200; }
.color-option-green { background: #93c47d; }
.save-row { display: flex; align-items: center; justify-content: flex-end; gap: 10px; padding: 10px; border-bottom: 1px solid var(--line); }
.save-row .save-icon-button { background: var(--paper); color: var(--accent); }
.reset-icon-button { color: var(--negative); border-color: var(--negative); }
.formula-note { margin: 0; padding: 14px; text-align: center; border-bottom: 1px solid var(--line); }

@media (max-width: 780px) {
  .app-header { grid-template-columns: 1fr; }
  .app-brand { width: 72px; }
  .app-logo { width: 72px; height: 72px; }
  .actions { flex-wrap: wrap; }
  .sheet-row { grid-template-columns: 42% 28% 30%; }
  .general-layout .sheet-row { grid-template-columns: 42% 28% 30%; }
  .research-row { grid-template-columns: 210px 190px minmax(260px, 1fr) 72px; }
  .general-layout { grid-template-columns: 1fr; }
  .price-chart { border-left: 0; }
}

@media print {
  :root, [data-theme] { color-scheme: light; --bg: #fff; --paper: #fff; --ink: #000; --muted: #444; --line: #222; --section: #00ffff; --input: #ffe49a; --manual: #c6e3b6; --warning: #fff4d5; --accent: #54219e; }
  @page { size: A4; margin: 8mm; }
  body { background: #fff; font-size: 10px; }
  .workbook { width: 100%; margin: 0; border: 0; box-shadow: none; }
  .app-header { padding: 8px; grid-template-columns: 60px 180px 1fr; }
  .app-brand { width: 60px; }
  .app-logo { width: 60px; height: 60px; }
  .general-layout .sheet-row { grid-template-columns: 42% 28% 30%; }
  .research-row { grid-template-columns: 31% 26% 35% 8%; }
  .actions, .ticker-form button, .save-row, .provenance, .chart-periods, .chart-tooltip, .cell-color-picker { display: none !important; }
  input, textarea, select { border: 0; background: transparent !important; appearance: none; }
  .warnings { margin: 5px 0; }
  section { break-inside: avoid; }
  .sheet-row > * { padding: 3px 5px; }
}