:root {
  color-scheme: dark;
  --bg: #090d13;
  --surface: #111923;
  --surface-raised: #172231;
  --border: #2a394a;
  --text: #f5f7fb;
  --muted: #aeb9c8;
  --accent: #5eead4;
  --accent-strong: #2dd4bf;
  --focus: #fde047;
  --long: #34d399;
  --short: #fb7185;
  --ema: #22d3ee;
  --dema: #f8fafc;
  --sma: #ef4444;
  --vwap: #e879f9;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: radial-gradient(circle at top right, #132132 0, var(--bg) 34rem);
  color: var(--text);
  min-height: 100vh;
}

button,
select,
textarea,
input { font: inherit; }

button,
.import-button,
select {
  border: 1px solid var(--border);
  background: var(--surface-raised);
  color: var(--text);
  border-radius: 0.55rem;
  min-height: 2.75rem;
}

button,
.import-button { padding: 0.65rem 0.9rem; cursor: pointer; }
button:hover,
.import-button:hover { border-color: var(--accent); }
button:disabled { opacity: 0.45; cursor: not-allowed; }

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -5rem;
  background: var(--focus);
  color: #111;
  padding: 0.75rem;
  z-index: 20;
}
.skip-link:focus { top: 1rem; }

.app-header,
main {
  width: min(1440px, calc(100% - 2rem));
  margin-inline: auto;
}

.app-header {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  align-items: flex-end;
  padding: 2rem 0 1.2rem;
}

h1,
h2,
p { margin-top: 0; }
h1 { margin-bottom: 0.45rem; font-size: clamp(1.6rem, 4vw, 2.55rem); }
h2 { margin-bottom: 0; }

.eyebrow {
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.13em;
  margin-bottom: 0.35rem;
}

.lede,
.muted,
.chart-footnote,
.study-details { color: var(--muted); }
.lede { margin-bottom: 0; max-width: 72ch; }

.header-actions,
.case-nav,
.form-actions {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-wrap: wrap;
}

.import-button input {
  position: absolute;
  width: 1px;
  height: 1px;
  clip: rect(0 0 0 0);
  overflow: hidden;
}

.progress-shell,
.case-summary,
.chart-shell,
.question-card,
.study-details {
  background: color-mix(in srgb, var(--surface) 94%, transparent);
  border: 1px solid var(--border);
  border-radius: 0.8rem;
}

.progress-shell { padding: 1rem 1.1rem; }
.progress-copy { display: flex; justify-content: space-between; gap: 1rem; }
.progress-copy p { margin-bottom: 0.25rem; }
#save-status { color: var(--muted); align-self: center; }

.progress-track {
  height: 0.55rem;
  background: #263241;
  border-radius: 999px;
  overflow: hidden;
  margin-top: 0.65rem;
}
#progress-bar {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--accent-strong), #60a5fa);
  transition: width 180ms ease;
}

.case-nav { padding: 0.85rem 0; }
.case-nav label { display: flex; align-items: center; gap: 0.5rem; }
.case-nav select { min-width: 10rem; padding-inline: 0.7rem; }
.secondary { margin-left: auto; }

.case-summary {
  padding: 1rem 1.15rem;
  display: grid;
  grid-template-columns: minmax(12rem, 1fr) auto;
  gap: 1rem;
  align-items: center;
}
.signal-prompt { display: flex; align-items: center; gap: 0.8rem; font-weight: 700; }
.direction-badge { padding: 0.42rem 0.7rem; border-radius: 0.4rem; background: var(--long); color: #03130e; }
.direction-badge.short { background: var(--short); color: #1a0307; }
.context-note {
  grid-column: 1 / -1;
  margin: 0;
  padding: 0.7rem 0.85rem;
  border-left: 3px solid #fbbf24;
  background: #2b2413;
  color: #fef3c7;
}

.chart-shell { margin-top: 0.9rem; padding: 0.9rem; position: relative; }
.chart-toolbar { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.chart-toolbar fieldset { border: 0; padding: 0; margin: 0; }
.chart-toolbar legend { color: var(--muted); font-size: 0.8rem; margin-bottom: 0.4rem; }
.chart-toolbar label { margin-right: 0.85rem; white-space: nowrap; }
.chart-legend { display: flex; flex-wrap: wrap; gap: 0.75rem; margin: 0.8rem 0 0.4rem; font-size: 0.8rem; color: var(--muted); }
.legend-item::before { content: ""; display: inline-block; width: 1.3rem; height: 3px; margin-right: 0.35rem; vertical-align: middle; background: currentColor; }
.legend-item.ema { color: var(--ema); }
.legend-item.dema { color: var(--dema); }
.legend-item.sma { color: var(--sma); }
.legend-item.vwap { color: var(--vwap); }
.legend-item.cloud { color: #fbbf24; }
.legend-item.psar { color: #f472b6; }

#market-chart {
  display: block;
  width: 100%;
  height: min(72vh, 760px);
  min-height: 560px;
  border-radius: 0.45rem;
  background: #080c12;
}
.chart-tooltip {
  position: absolute;
  pointer-events: none;
  z-index: 4;
  max-width: 20rem;
  padding: 0.55rem 0.65rem;
  border: 1px solid #52657b;
  border-radius: 0.4rem;
  background: rgba(8, 12, 18, 0.96);
  color: #e5edf7;
  font: 0.75rem/1.4 ui-monospace, SFMono-Regular, Menlo, monospace;
  box-shadow: 0 8px 30px #0008;
}
.chart-footnote { margin: 0.65rem 0 0; font-size: 0.8rem; }

.review-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.9rem;
  margin-top: 0.9rem;
}
.question-card { padding: 1rem; min-width: 0; }
.question-card fieldset { border: 0; margin: 0; padding: 0; }
.question-card legend { font-weight: 750; margin-bottom: 0.8rem; }
.primary-question,
.review-form .question-card:nth-last-of-type(2),
.review-form .question-card:nth-last-of-type(1),
.form-actions { grid-column: 1 / -1; }

.segmented,
.confidence-scale {
  display: grid;
  gap: 0.55rem;
}
.segmented.three { grid-template-columns: repeat(3, 1fr); }
.segmented.four { grid-template-columns: repeat(4, 1fr); }
.confidence-scale { grid-template-columns: repeat(5, 1fr); }
.segmented input,
.confidence-scale input { position: absolute; opacity: 0; pointer-events: none; }
.segmented span,
.confidence-scale span {
  display: flex;
  min-height: 3.4rem;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0.55rem;
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  background: #0e151e;
  cursor: pointer;
}
.confidence-scale span { min-height: 3.8rem; }
.segmented input:checked + span,
.confidence-scale input:checked + span {
  border-color: var(--accent);
  background: #123c3a;
  box-shadow: 0 0 0 1px var(--accent);
}
.segmented input:focus-visible + span,
.confidence-scale input:focus-visible + span {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

.reason-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0.6rem; }
.reason-grid label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  min-height: 2.7rem;
  padding: 0.5rem;
  background: #0e151e;
  border: 1px solid var(--border);
  border-radius: 0.45rem;
}
.reason-grid input { inline-size: 1.15rem; block-size: 1.15rem; accent-color: var(--accent-strong); }

textarea {
  width: 100%;
  margin-top: 0.65rem;
  padding: 0.75rem;
  resize: vertical;
  color: var(--text);
  background: #0a1119;
  border: 1px solid var(--border);
  border-radius: 0.5rem;
}
.form-actions { padding: 0.25rem 0 1rem; }
.primary { background: var(--accent-strong); color: #06201d; border-color: var(--accent); font-weight: 800; }
.study-details { margin: 0 0 3rem; padding: 1rem; }
.study-details summary { color: var(--text); font-weight: 700; cursor: pointer; }
.study-details p { margin: 0.8rem 0 0; }

@media (max-width: 960px) {
  .app-header { align-items: flex-start; flex-direction: column; }
  .review-form { grid-template-columns: 1fr; }
  .question-card,
  .primary-question,
  .review-form .question-card:nth-last-of-type(2),
  .review-form .question-card:nth-last-of-type(1),
  .form-actions { grid-column: 1; }
  .segmented.four { grid-template-columns: repeat(2, 1fr); }
  .reason-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .app-header,
  main { width: min(100% - 1rem, 1440px); }
  .app-header { padding-top: 1rem; }
  .header-actions > *,
  .case-nav > button { flex: 1 1 auto; }
  .secondary { margin-left: 0; }
  .case-summary { grid-template-columns: 1fr; }
  .signal-prompt { flex-wrap: wrap; }
  .segmented.three,
  .segmented.four { grid-template-columns: 1fr; }
  .reason-grid { grid-template-columns: 1fr; }
  #market-chart { min-height: 510px; height: 68vh; }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; transition: none !important; }
}