:root {
  color-scheme: dark;
  --bg-main: #08111f;
  --bg-panel: rgba(10, 18, 31, 0.78);
  --bg-panel-strong: rgba(8, 14, 26, 0.92);
  --bg-accent: rgba(107, 214, 176, 0.12);
  --text-main: #ecf4ff;
  --text-muted: #9cb0cb;
  --text-soft: #6d7e96;
  --line: rgba(154, 176, 207, 0.18);
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.35);
  --bullish: #46d39d;
  --bearish: #ff6f7d;
  --neutral: #ffd166;
  --button-main: #f7b538;
  --button-main-text: #09111d;
  --button-ghost: rgba(247, 181, 56, 0.08);
  --canvas-bg-top: rgba(13, 26, 45, 0.95);
  --canvas-bg-bottom: rgba(5, 10, 18, 0.95);
  --page-gradient:
    radial-gradient(circle at top left, rgba(247, 181, 56, 0.16), transparent 28%),
    radial-gradient(circle at top right, rgba(70, 211, 157, 0.18), transparent 26%),
    linear-gradient(135deg, #09111d 0%, #0d1829 52%, #050912 100%);
}

body[data-theme="light"] {
  color-scheme: light;
  --bg-main: #f7f4ec;
  --bg-panel: rgba(255, 252, 245, 0.86);
  --bg-panel-strong: rgba(255, 255, 255, 0.94);
  --bg-accent: rgba(16, 87, 66, 0.08);
  --text-main: #17212b;
  --text-muted: #4a5b6c;
  --text-soft: #70808f;
  --line: rgba(43, 63, 89, 0.14);
  --shadow: 0 22px 55px rgba(92, 81, 58, 0.16);
  --bullish: #14855d;
  --bearish: #d34b5d;
  --neutral: #b88315;
  --button-main: #153c60;
  --button-main-text: #fbf6ec;
  --button-ghost: rgba(21, 60, 96, 0.08);
  --canvas-bg-top: rgba(255, 252, 247, 0.98);
  --canvas-bg-bottom: rgba(246, 239, 226, 0.98);
  --page-gradient:
    radial-gradient(circle at top left, rgba(21, 60, 96, 0.11), transparent 28%),
    radial-gradient(circle at right, rgba(181, 131, 21, 0.13), transparent 24%),
    linear-gradient(135deg, #f3eee2 0%, #f8f4eb 52%, #ece4d3 100%);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  background: var(--page-gradient);
  color: var(--text-main);
  font-family: "Space Grotesk", sans-serif;
  transition:
    background 240ms ease,
    color 240ms ease;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.3), transparent 70%);
}

.page-shell {
  width: min(1440px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 36px;
}

.top-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 18px;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 10px 16px;
  border-radius: 999px;
  text-decoration: none;
  color: var(--text-main);
  background: var(--bg-panel);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  font-weight: 700;
  transition:
    transform 180ms ease,
    background 180ms ease,
    color 180ms ease;
}

.nav-link:hover {
  transform: translateY(-1px);
}

.hero,
.panel {
  backdrop-filter: blur(18px);
  background: var(--bg-panel);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.hero {
  display: grid;
  grid-template-columns: 1.45fr 0.9fr;
  gap: 24px;
  padding: 28px;
  border-radius: 28px;
}

.eyebrow,
.panel-kicker,
.meta-label,
.help-text,
.input-feedback,
code {
  font-family: "IBM Plex Mono", monospace;
}

.eyebrow,
.panel-kicker {
  margin: 0 0 10px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.72rem;
  color: var(--neutral);
}

.hero h1,
.panel h2 {
  margin: 0;
  line-height: 1.02;
}

.hero h1 {
  max-width: 12ch;
  font-size: clamp(2.6rem, 5vw, 5.3rem);
}

.hero-text {
  max-width: 60ch;
  margin: 16px 0 0;
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.65;
}

.hero-actions {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 14px;
}

.button {
  border: 0;
  border-radius: 999px;
  padding: 14px 18px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    background 180ms ease,
    color 180ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button.primary {
  background: var(--button-main);
  color: var(--button-main-text);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.18);
}

.button.ghost {
  background: var(--button-ghost);
  color: var(--text-main);
  border: 1px solid var(--line);
}

.dashboard {
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) minmax(320px, 0.95fr);
  gap: 24px;
  margin-top: 24px;
}

.page-footer {
  margin-top: 24px;
  padding: 18px 22px;
  border-radius: 22px;
  background: var(--bg-panel);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  color: var(--text-muted);
  text-align: center;
}

.panel {
  border-radius: 28px;
  padding: 24px;
}

.panel-heading {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 20px;
  margin-bottom: 20px;
}

.panel-heading.compact {
  margin-bottom: 18px;
}

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.swatch {
  display: inline-block;
  width: 12px;
  height: 12px;
  margin-right: 8px;
  border-radius: 999px;
}

.swatch.bullish {
  background: var(--bullish);
}

.swatch.bearish {
  background: var(--bearish);
}

.swatch.neutral {
  background: var(--neutral);
}

.chart-frame {
  background:
    linear-gradient(180deg, var(--canvas-bg-top), var(--canvas-bg-bottom));
  border: 1px solid var(--line);
  border-radius: 24px;
  overflow: hidden;
}

#chartCanvas {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1200 / 620;
}

.chart-meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.chart-meta > div {
  padding: 14px 16px;
  border-radius: 18px;
  background: var(--bg-accent);
  border: 1px solid var(--line);
}

.meta-label {
  display: block;
  margin-bottom: 6px;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-soft);
}

.sidebar {
  display: grid;
  gap: 24px;
}

.pattern-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  max-height: 760px;
  overflow: auto;
  padding-right: 4px;
}

.pattern-card {
  text-align: left;
  border: 1px solid var(--line);
  background: var(--bg-panel-strong);
  color: var(--text-main);
  border-radius: 18px;
  padding: 14px;
  cursor: pointer;
  transition:
    transform 160ms ease,
    border-color 160ms ease,
    background 160ms ease;
}

.pattern-card:hover,
.pattern-card.active {
  transform: translateY(-1px);
  border-color: rgba(247, 181, 56, 0.45);
  background: var(--bg-accent);
}

.pattern-card strong {
  display: block;
  margin-bottom: 4px;
}

.pattern-card span {
  display: block;
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.45;
}

.hidden {
  display: none;
}

.text-input,
.text-area {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 14px 16px;
  background: var(--bg-panel-strong);
  color: var(--text-main);
  font: inherit;
}

.text-area {
  min-height: 260px;
  resize: vertical;
  font-family: "IBM Plex Mono", monospace;
  line-height: 1.6;
}

.text-input:focus,
.text-area:focus {
  outline: 2px solid color-mix(in srgb, var(--button-main) 50%, transparent);
  outline-offset: 0;
}

.input-label {
  display: block;
  margin: 10px 0 10px;
  font-weight: 700;
}

.help-text,
.input-feedback {
  color: var(--text-muted);
  line-height: 1.6;
}

.input-feedback {
  min-height: 24px;
  margin: 14px 0 0;
}

.input-feedback.error {
  color: var(--bearish);
}

.input-feedback.success {
  color: var(--bullish);
}

.custom-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 16px;
}

@media (max-width: 1120px) {
  .hero,
  .dashboard {
    grid-template-columns: 1fr;
  }

  .hero h1 {
    max-width: 14ch;
  }
}

@media (max-width: 720px) {
  .page-shell {
    width: min(100% - 20px, 100%);
    padding-top: 18px;
  }

  .hero,
  .panel {
    padding: 18px;
    border-radius: 22px;
  }

  .pattern-grid,
  .chart-meta {
    grid-template-columns: 1fr;
  }

  .panel-heading {
    flex-direction: column;
  }
}