:root {
  color-scheme: light;

  --canvas: #f4efe5;
  --canvas-deep: #eadfcf;
  --paper: rgba(255, 252, 244, 0.94);
  --paper-strong: #fffaf0;
  --paper-muted: #f0e4d0;
  --ink: #18211d;
  --ink-soft: #3d4b43;
  --muted: #768078;
  --muted-strong: #55625a;
  --line: rgba(38, 47, 42, 0.14);
  --line-strong: rgba(38, 47, 42, 0.24);

  --accent: #c76d2a;
  --accent-deep: #8f4119;
  --accent-soft: rgba(199, 109, 42, 0.12);
  --accent-wash: #f6dfc1;
  --green: #0f7b5c;
  --green-soft: rgba(15, 123, 92, 0.12);
  --red: #b13f32;
  --red-soft: rgba(177, 63, 50, 0.12);
  --blue: #285a7d;
  --blue-soft: rgba(40, 90, 125, 0.12);
  --gold: #d8a33a;
  --violet: #7661a6;

  --chart-equity: #0f7b5c;
  --chart-rsi: #285a7d;
  --chart-k: #c76d2a;
  --chart-d: #7661a6;
  --chart-macd: #285a7d;
  --chart-signal: #b13f32;

  --shadow-sm: 0 10px 24px rgba(62, 48, 30, 0.08);
  --shadow: 0 18px 48px rgba(62, 48, 30, 0.12);
  --shadow-lg: 0 28px 80px rgba(62, 48, 30, 0.18);
  --radius-xl: 30px;
  --radius-lg: 22px;
  --radius-md: 14px;
  --radius-sm: 10px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  font-family: "IBM Plex Sans TC", "PingFang TC", sans-serif;
  background:
    linear-gradient(120deg, rgba(255, 250, 240, 0.86), rgba(244, 239, 229, 0.86)),
    radial-gradient(circle at 18% 8%, rgba(199, 109, 42, 0.22), transparent 34rem),
    radial-gradient(circle at 90% 18%, rgba(15, 123, 92, 0.16), transparent 32rem),
    linear-gradient(135deg, var(--canvas), var(--canvas-deep));
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -3;
  content: "";
  background-image:
    linear-gradient(rgba(24, 33, 29, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(24, 33, 29, 0.045) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.88), transparent 92%);
}

button,
input,
select {
  font: inherit;
}

button {
  color: inherit;
}

h1,
h2,
h3,
strong {
  letter-spacing: -0.035em;
}

h1,
h2 {
  font-family: "Newsreader", "IBM Plex Sans TC", serif;
}

.ambient {
  position: fixed;
  z-index: -2;
  width: 26rem;
  height: 26rem;
  border-radius: 999px;
  filter: blur(12px);
  opacity: 0.46;
  pointer-events: none;
}

.ambient-left {
  left: -9rem;
  top: 9rem;
  background: radial-gradient(circle, rgba(199, 109, 42, 0.34), transparent 64%);
}

.ambient-right {
  right: -10rem;
  top: 28rem;
  background: radial-gradient(circle, rgba(15, 123, 92, 0.24), transparent 64%);
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent-deep);
  font-family: "Space Mono", monospace;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.full-width {
  grid-column: 1 / -1;
}

[hidden] {
  display: none !important;
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 16px clamp(16px, 4vw, 42px);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 250, 240, 0.78);
  backdrop-filter: blur(24px) saturate(130%);
  box-shadow: 0 8px 28px rgba(62, 48, 30, 0.08);
}

.site-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  display: inline-grid;
  width: 44px;
  height: 44px;
  place-items: center;
  border: 1px solid rgba(24, 33, 29, 0.2);
  border-radius: 15px;
  background:
    linear-gradient(135deg, rgba(199, 109, 42, 0.18), rgba(15, 123, 92, 0.12)),
    var(--paper-strong);
  color: var(--ink);
  font-family: "Space Mono", monospace;
  font-size: 0.82rem;
  font-weight: 700;
  box-shadow: var(--shadow-sm);
}

.site-brand strong,
.site-brand small {
  display: block;
}

.site-brand strong {
  font-size: 1.05rem;
}

.site-brand small {
  margin-top: 1px;
  color: var(--muted);
  font-family: "Space Mono", monospace;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  gap: 8px;
  padding: 5px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 252, 244, 0.72);
}

.nav-link {
  min-height: 38px;
  padding: 0 16px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--muted-strong);
  font-size: 0.88rem;
  font-weight: 700;
  cursor: pointer;
  transition: color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.nav-link:hover {
  color: var(--ink);
}

.nav-link.is-active {
  background: var(--ink);
  color: #fffaf0;
  box-shadow: 0 10px 24px rgba(24, 33, 29, 0.18);
}

/* Layout */

.layout {
  position: relative;
  z-index: 1;
  width: min(1460px, calc(100% - 32px));
  margin: 0 auto;
  padding: 30px 0 62px;
}

.page {
  display: none;
}

.page-active {
  display: block;
  animation: pageIn 460ms ease both;
}

@keyframes pageIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  align-items: end;
  margin-bottom: 22px;
  padding: clamp(24px, 4vw, 44px);
  border: 1px solid rgba(24, 33, 29, 0.12);
  border-radius: var(--radius-xl);
  background:
    linear-gradient(135deg, rgba(255, 250, 240, 0.94), rgba(245, 225, 194, 0.74)),
    radial-gradient(circle at 84% 10%, rgba(15, 123, 92, 0.18), transparent 26rem);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.hero-panel h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(2.2rem, 5vw, 5rem);
  line-height: 0.95;
}

.hero-copy {
  max-width: 680px;
  margin: 18px 0 0;
  color: var(--ink-soft);
  font-size: 1rem;
  line-height: 1.8;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(86px, 1fr));
  gap: 10px;
}

.hero-stats span {
  min-height: 78px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 252, 244, 0.74);
  color: var(--ink);
  font-family: "Space Mono", monospace;
  font-size: 0.76rem;
  font-weight: 700;
  display: grid;
  align-items: end;
  box-shadow: var(--shadow-sm);
}

.backtest-shell {
  display: grid;
  grid-template-columns: minmax(340px, 400px) minmax(0, 1fr);
  gap: 22px;
  align-items: start;
}

/* Panels and Forms */

.control-panel,
.result-shell,
.stock-add-box,
.stock-filter-box,
.stock-list-card,
.stock-list-empty,
.alert-panel,
.alerts-header,
.alert-rules-section,
.alerts-status-card,
.alert-empty,
.alert-rule-card {
  border: 1px solid var(--line);
  background: var(--paper);
  box-shadow: var(--shadow);
}

.control-panel {
  position: sticky;
  top: 96px;
  max-height: calc(100vh - 118px);
  overflow: auto;
  overscroll-behavior: contain;
  padding: 24px;
  border-radius: var(--radius-xl);
}

.control-panel::-webkit-scrollbar {
  width: 8px;
}

.control-panel::-webkit-scrollbar-thumb {
  border-radius: 999px;
  background: rgba(24, 33, 29, 0.18);
}

.form-header {
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.form-header h2 {
  margin: 0;
  font-size: 2rem;
  line-height: 1;
}

.form-header p:not(.eyebrow) {
  margin: 12px 0 0;
  color: var(--muted-strong);
  line-height: 1.65;
}

.field-group {
  margin-top: 20px;
}

.panel-section {
  padding-top: 4px;
}

.section-label,
.param-section-title {
  margin: 0 0 12px;
  color: var(--accent-deep);
  font-family: "Space Mono", monospace;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.param-section-title {
  margin-top: 10px;
}

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

label {
  display: grid;
  gap: 8px;
}

label + label {
  margin-top: 14px;
}

.field-row label + label,
.grid label + label,
.stock-filter-box label + label {
  margin-top: 0;
}

label span {
  color: var(--ink-soft);
  font-size: 0.86rem;
  font-weight: 700;
}

.field-hint {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.65;
}

input,
select {
  width: 100%;
  min-height: 46px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(255, 250, 240, 0.76);
  color: var(--ink);
  font-size: 0.94rem;
  transition: border-color 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

input:hover,
select:hover {
  border-color: var(--line-strong);
  background: var(--paper-strong);
}

input:focus,
select:focus,
button:focus-visible {
  outline: none;
  border-color: rgba(199, 109, 42, 0.72);
  box-shadow: 0 0 0 4px rgba(199, 109, 42, 0.14);
}

#tracked-symbol-select:disabled {
  cursor: not-allowed;
  opacity: 0.68;
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.pill-group {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 7px;
}

#period-pills {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.pill-btn {
  min-height: 40px;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 250, 240, 0.62);
  color: var(--muted-strong);
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.18s ease, border-color 0.18s ease, color 0.18s ease, transform 0.18s ease;
}

.pill-btn:hover {
  border-color: var(--line-strong);
  color: var(--ink);
  transform: translateY(-1px);
}

.pill-btn.is-active {
  border-color: rgba(15, 123, 92, 0.28);
  background: var(--green);
  color: #fffaf0;
  box-shadow: 0 10px 22px rgba(15, 123, 92, 0.18);
}

.param-panel {
  margin-top: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(240, 228, 208, 0.36);
  overflow: hidden;
}

.param-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px;
  cursor: pointer;
  list-style: none;
}

.param-toggle::-webkit-details-marker {
  display: none;
}

.param-toggle span {
  color: var(--ink);
  font-weight: 800;
}

.param-toggle small {
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.45;
}

.param-panel[open] .param-toggle {
  border-bottom: 1px solid var(--line);
}

.param-grid {
  margin-top: 0;
  padding: 16px;
}

/* Buttons */

.button-row {
  position: sticky;
  bottom: -24px;
  z-index: 2;
  margin: 20px -24px -24px;
  padding: 16px 24px 24px;
  border-top: 1px solid rgba(24, 33, 29, 0.08);
  background: linear-gradient(180deg, rgba(255, 252, 244, 0.42), rgba(255, 252, 244, 0.96) 40%);
  backdrop-filter: blur(16px);
}

.primary-button,
.secondary-button,
.toolbar-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-weight: 800;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease, color 0.18s ease;
}

.primary-button {
  position: relative;
  width: 100%;
  min-height: 52px;
  border: 0;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.18), transparent),
    linear-gradient(135deg, var(--ink), #294137);
  color: #fffaf0;
  box-shadow: 0 16px 34px rgba(24, 33, 29, 0.2);
}

.primary-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 20px 44px rgba(24, 33, 29, 0.24);
}

.primary-button:disabled {
  cursor: wait;
  opacity: 0.72;
  transform: none;
}

.secondary-button,
.toolbar-button {
  border: 1px solid var(--line);
  background: rgba(255, 250, 240, 0.72);
  color: var(--ink-soft);
}

.secondary-button:hover,
.toolbar-button:hover {
  background: var(--paper-strong);
  color: var(--ink);
  transform: translateY(-1px);
}

.toolbar-button {
  min-height: 34px;
  padding: 0 12px;
  font-size: 0.8rem;
}

/* Result Summary */

.result-shell {
  min-width: 0;
  padding: clamp(20px, 2.4vw, 32px);
  border-radius: var(--radius-xl);
}

.result-shell.is-loading .metric-card,
.result-shell.is-loading .decision-card,
.result-shell.is-loading .chart-card svg {
  animation: loadingPulse 1.1s ease-in-out infinite alternate;
}

.result-shell.is-loading .chart-card,
.result-shell.is-loading .trade-card {
  pointer-events: none;
}

@keyframes loadingPulse {
  from {
    opacity: 0.58;
  }
  to {
    opacity: 1;
  }
}

.status-row,
.chart-header,
.stock-list-top,
.stock-list-meta,
.stock-list-actions,
.chart-toolbar {
  display: flex;
  align-items: center;
}

.status-row,
.chart-header,
.stock-list-top,
.stock-list-meta,
.chart-toolbar {
  justify-content: space-between;
  gap: 16px;
}

.status-row > div:first-child,
.chart-header > div:first-child {
  min-width: 0;
}

.status-row h2 {
  margin: 0;
  font-size: clamp(1.5rem, 2.8vw, 2.45rem);
  line-height: 1.05;
  overflow-wrap: anywhere;
}

.strategy-description {
  margin: 14px 0 0;
  color: var(--muted-strong);
  line-height: 1.8;
}

.decision-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-top: 22px;
}

.decision-card {
  position: relative;
  min-height: 122px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(160deg, rgba(255, 252, 244, 0.94), rgba(246, 223, 193, 0.32)),
    var(--paper-strong);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.decision-card::after {
  position: absolute;
  inset: auto 14px 14px auto;
  width: 36px;
  height: 36px;
  border-radius: 999px;
  content: "";
  background: radial-gradient(circle, rgba(199, 109, 42, 0.2), transparent 68%);
}

.decision-card span,
.metric-card span {
  display: block;
  color: var(--accent-deep);
  font-family: "Space Mono", monospace;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.decision-card strong {
  display: block;
  margin-top: 12px;
  color: var(--ink);
  font-family: "Newsreader", "IBM Plex Sans TC", serif;
  font-size: clamp(1.28rem, 2vw, 1.8rem);
  line-height: 1;
  overflow-wrap: anywhere;
}

.decision-card small {
  display: block;
  margin-top: 10px;
  color: var(--muted-strong);
  font-size: 0.78rem;
  line-height: 1.45;
}

.decision-card[data-tone="good"] {
  border-color: rgba(15, 123, 92, 0.28);
  background: linear-gradient(150deg, rgba(15, 123, 92, 0.12), rgba(255, 252, 244, 0.92));
}

.decision-card[data-tone="bad"] {
  border-color: rgba(177, 63, 50, 0.28);
  background: linear-gradient(150deg, rgba(177, 63, 50, 0.12), rgba(255, 252, 244, 0.92));
}

.decision-card[data-tone="good"] strong {
  color: var(--green);
}

.decision-card[data-tone="bad"] strong {
  color: var(--red);
}

.pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 0 14px;
  border-radius: 999px;
  font-family: "Space Mono", monospace;
  font-size: 0.76rem;
  font-weight: 700;
  white-space: nowrap;
  flex-shrink: 0;
}

.pill.neutral {
  background: rgba(24, 33, 29, 0.08);
  color: var(--ink-soft);
}

.pill.good {
  background: var(--green-soft);
  color: var(--green);
}

.pill.bad {
  background: var(--red-soft);
  color: var(--red);
}

.data-banner {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  gap: 16px;
  align-items: center;
  margin-top: 24px;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(135deg, rgba(255, 250, 240, 0.72), rgba(240, 228, 208, 0.44)),
    var(--paper);
}

.data-banner-live {
  border-color: rgba(15, 123, 92, 0.24);
  background: linear-gradient(135deg, rgba(15, 123, 92, 0.12), rgba(255, 250, 240, 0.8));
}

.data-banner-warning {
  border-color: rgba(199, 109, 42, 0.28);
  background: linear-gradient(135deg, rgba(199, 109, 42, 0.13), rgba(255, 250, 240, 0.82));
}

.data-banner-danger {
  border-color: rgba(177, 63, 50, 0.28);
  background: linear-gradient(135deg, rgba(177, 63, 50, 0.12), rgba(255, 250, 240, 0.82));
}

.data-banner-label {
  margin: 0 0 6px;
  color: var(--muted);
  font-family: "Space Mono", monospace;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.data-banner-copy strong {
  display: block;
  font-size: 0.95rem;
  line-height: 1.45;
}

.data-banner-detail {
  margin: 0;
  color: var(--muted-strong);
  font-size: 0.9rem;
  line-height: 1.75;
}

/* Metrics */

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(132px, 1fr));
  gap: 14px;
  margin-top: 24px;
}

.metric-card {
  position: relative;
  min-height: 136px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(160deg, rgba(255, 252, 244, 0.96), rgba(246, 223, 193, 0.4)),
    var(--paper-strong);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.metric-card::before {
  position: absolute;
  inset: 12px 12px auto auto;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  content: "";
  background: radial-gradient(circle, rgba(199, 109, 42, 0.24), transparent 66%);
}

.metric-card span {
  color: var(--muted);
}

.metric-card strong {
  display: block;
  margin-top: 14px;
  color: var(--ink);
  font-family: "Newsreader", serif;
  font-size: clamp(1.35rem, 1.8vw, 1.9rem);
  line-height: 0.95;
  overflow-wrap: anywhere;
}

.metric-card small {
  display: block;
  margin-top: 12px;
  color: var(--muted-strong);
  font-size: 0.8rem;
  font-weight: 800;
}

.metric-good {
  border-color: rgba(15, 123, 92, 0.22);
}

.metric-good::before {
  background: radial-gradient(circle, rgba(15, 123, 92, 0.24), transparent 66%);
}

.metric-good strong {
  color: var(--green);
}

.metric-bad {
  border-color: rgba(177, 63, 50, 0.22);
}

.metric-bad::before {
  background: radial-gradient(circle, rgba(177, 63, 50, 0.22), transparent 66%);
}

.metric-bad strong {
  color: var(--red);
}

.metric-active {
  border-color: rgba(199, 109, 42, 0.28);
}

.metric-active strong {
  color: var(--accent-deep);
}

/* Charts */

.chart-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 20px;
}

.chart-card,
.trade-card,
.strategy-explainer {
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: rgba(255, 252, 244, 0.78);
  box-shadow: var(--shadow-sm);
}

.chart-card,
.trade-card {
  padding: clamp(18px, 2vw, 24px);
}

.chart-card h3,
.trade-card h3 {
  margin: 0;
  color: var(--ink);
  font-size: 1.05rem;
}

.chart-meta,
.chart-help,
.legend,
.empty {
  color: var(--muted);
}

.chart-meta {
  margin: 5px 0 0;
  font-size: 0.82rem;
}

.chart-toolbar {
  margin-top: 12px;
}

.chart-help {
  font-size: 0.82rem;
}

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  margin-top: 12px;
  font-size: 0.8rem;
}

.legend span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.legend-swatch {
  display: inline-block;
  width: 18px;
  height: 3px;
  border-radius: 999px;
}

.legend-swatch.candle-up,
.legend-swatch.candle-down {
  width: 10px;
  height: 10px;
}

.legend-swatch.candle-up {
  background: var(--green);
}

.legend-swatch.candle-down {
  background: var(--red);
}

.legend-swatch.bb-upper {
  background: var(--blue);
}

.legend-swatch.bb-middle {
  background: var(--accent);
}

.legend-swatch.bb-lower {
  background: var(--violet);
}

.chart-stage {
  position: relative;
}

svg {
  width: 100%;
  height: 190px;
  margin-top: 12px;
  border: 1px solid rgba(24, 33, 29, 0.12);
  border-radius: 18px;
  background:
    linear-gradient(rgba(24, 33, 29, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(24, 33, 29, 0.035) 1px, transparent 1px),
    linear-gradient(180deg, rgba(255, 250, 240, 0.92), rgba(240, 228, 208, 0.58));
  background-size: 100% 42px, 64px 100%, auto;
}

#price-chart,
#equity-chart,
#rsi-chart,
#kd-chart,
#macd-chart {
  cursor: crosshair;
}

#price-chart {
  touch-action: none;
}

.grid-line {
  stroke: rgba(24, 33, 29, 0.14);
  stroke-width: 1;
  stroke-dasharray: 4 5;
}

.grid-zero {
  stroke: rgba(24, 33, 29, 0.28);
  stroke-width: 1;
}

.hover-line {
  stroke: rgba(24, 33, 29, 0.46);
  stroke-width: 1;
  stroke-dasharray: 4 4;
}

.selection-line {
  stroke: rgba(199, 109, 42, 0.86);
  stroke-width: 1.3;
}

.indicator-line {
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.bollinger-upper {
  stroke: var(--blue);
  stroke-width: 2.1;
}

.bollinger-middle {
  stroke: var(--accent);
  stroke-width: 2.1;
}

.bollinger-lower {
  stroke: var(--violet);
  stroke-width: 2.1;
}

.candle-wick {
  stroke-width: 1.2;
}

.candle-body {
  stroke-width: 1;
}

.candle-hovered {
  filter: drop-shadow(0 0 4px rgba(24, 33, 29, 0.22));
}

.candle-up {
  fill: var(--green);
  stroke: var(--green);
}

.candle-down {
  fill: var(--red);
  stroke: var(--red);
}

.signal-buy {
  fill: var(--green);
}

.signal-sell {
  fill: var(--red);
}

.signal-label {
  font-family: "Space Mono", monospace;
  font-size: 11px;
  font-weight: 700;
}

.signal-label-buy {
  fill: var(--green);
}

.signal-label-sell {
  fill: var(--red);
}

.macd-positive {
  fill: rgba(15, 123, 92, 0.32);
}

.macd-negative {
  fill: rgba(177, 63, 50, 0.32);
}

.chart-focus {
  display: inline-flex;
  align-items: center;
  justify-content: flex-end;
  flex-shrink: 1;
  min-height: 2rem;
  max-width: min(100%, 36rem);
  padding: 6px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 250, 240, 0.72);
  font-family: "Space Mono", monospace;
  font-size: 0.72rem;
  font-weight: 700;
  line-height: 1.55;
  text-align: right;
  white-space: normal;
}

.focus-neutral {
  color: var(--muted-strong);
}

.focus-negative {
  border-color: rgba(177, 63, 50, 0.22);
  background: var(--red-soft);
  color: var(--red);
}

.focus-positive {
  border-color: rgba(15, 123, 92, 0.22);
  background: var(--green-soft);
  color: var(--green);
}

.chart-tooltip {
  position: absolute;
  z-index: 2;
  width: 260px;
  padding: 13px 14px;
  border: 1px solid rgba(24, 33, 29, 0.14);
  border-radius: 16px;
  background: rgba(255, 252, 244, 0.96);
  box-shadow: var(--shadow-lg);
  pointer-events: none;
}

.chart-tooltip strong {
  display: block;
  margin-bottom: 7px;
  font-size: 0.9rem;
}

.chart-tooltip span {
  display: block;
  margin-top: 3px;
  color: var(--muted-strong);
  font-size: 0.78rem;
  line-height: 1.5;
}

#price-chart.dragging {
  cursor: grabbing;
}

/* Strategy Explainer */

.strategy-explainer {
  margin-top: 24px;
  overflow: hidden;
}

.explainer-body {
  display: grid;
  grid-template-columns: 390px minmax(0, 1fr);
  gap: 24px;
  padding: 24px;
}

.explainer-flowchart {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.flow-step {
  display: grid;
  grid-template-columns: 76px 1fr;
  align-items: center;
  gap: 14px;
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255, 250, 240, 0.68);
  font-size: 0.88rem;
  line-height: 1.55;
}

.flow-step-label {
  padding-right: 13px;
  border-right: 1px solid rgba(24, 33, 29, 0.12);
  font-family: "Space Mono", monospace;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-align: right;
  text-transform: uppercase;
}

.flow-step-text {
  color: var(--ink);
  font-weight: 700;
}

.flow-step.step-trigger {
  border-color: rgba(40, 90, 125, 0.26);
  background: var(--blue-soft);
}

.flow-step.step-trigger .flow-step-label {
  color: var(--blue);
}

.flow-step.step-condition {
  border-color: rgba(199, 109, 42, 0.26);
  background: var(--accent-soft);
}

.flow-step.step-condition .flow-step-label {
  color: var(--accent-deep);
}

.flow-step.step-buy {
  border-color: rgba(15, 123, 92, 0.26);
  background: var(--green-soft);
}

.flow-step.step-buy .flow-step-label {
  color: var(--green);
}

.flow-step.step-sell {
  border-color: rgba(177, 63, 50, 0.26);
  background: var(--red-soft);
}

.flow-step.step-sell .flow-step-label {
  color: var(--red);
}

.flow-step.step-hold .flow-step-label {
  color: var(--muted);
}

.flow-arrow {
  display: flex;
  justify-content: center;
  color: var(--muted);
  font-size: 1rem;
  transform: rotate(90deg);
  user-select: none;
}

.explainer-rules {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
  align-content: start;
}

.rule-card {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255, 250, 240, 0.62);
}

.rule-card-label {
  display: block;
  margin-bottom: 8px;
  color: var(--accent-deep);
  font-family: "Space Mono", monospace;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.rule-card-text {
  display: block;
  color: var(--ink-soft);
  font-size: 0.88rem;
  line-height: 1.65;
}

/* Trade Table */

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  margin-top: 14px;
  border-collapse: collapse;
}

th,
td {
  padding: 12px 10px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  white-space: nowrap;
}

th {
  color: var(--muted);
  font-family: "Space Mono", monospace;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

td {
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.trade-row {
  cursor: pointer;
  transition: background 0.16s ease, box-shadow 0.16s ease;
}

.trade-row:hover {
  background: rgba(199, 109, 42, 0.07);
}

.trade-row.is-selected {
  background: rgba(15, 123, 92, 0.1);
  box-shadow: inset 4px 0 0 var(--green);
}

.trade-row-open {
  background: rgba(199, 109, 42, 0.06);
}

.return-pill {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  font-family: "Space Mono", monospace;
  font-size: 0.76rem;
  font-weight: 700;
}

.return-positive {
  background: var(--green-soft);
  color: var(--green);
}

.return-negative {
  background: var(--red-soft);
  color: var(--red);
}

.error-box {
  margin: 16px 0 0;
  padding: 14px 16px;
  border: 1px solid rgba(177, 63, 50, 0.26);
  border-radius: var(--radius-md);
  background: var(--red-soft);
  color: var(--red);
  font-size: 0.9rem;
}

/* Stocks Page */

.stocks-shell {
  width: min(980px, 100%);
  margin: 0 auto;
}

.stocks-main {
  display: grid;
  gap: 20px;
}

.stocks-header {
  padding: clamp(24px, 4vw, 42px);
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background:
    linear-gradient(135deg, rgba(255, 250, 240, 0.94), rgba(246, 223, 193, 0.62)),
    var(--paper);
  box-shadow: var(--shadow);
}

.stocks-header h1 {
  margin: 0;
  font-size: clamp(2.2rem, 5vw, 4.2rem);
  line-height: 0.96;
}

.stocks-subtitle,
.alerts-subtitle {
  max-width: 680px;
  margin: 14px 0 0;
  color: var(--muted-strong);
  line-height: 1.75;
}

.stocks-toolbar {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 14px;
}

.stock-add-box,
.stock-filter-box,
.stock-list-card,
.stock-list-empty {
  border-radius: var(--radius-lg);
}

.stock-add-box,
.stock-filter-box {
  padding: 18px;
}

.stock-filter-box {
  display: grid;
  gap: 12px;
}

.inline-input-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
}

.inline-input-row .primary-button {
  width: auto;
  min-width: 78px;
}

.stocks-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 14px;
}

.stock-list-card,
.stock-list-empty {
  padding: 18px;
}

.stock-list-card {
  width: 100%;
  text-align: left;
  cursor: pointer;
  transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}

.stock-list-card:hover {
  border-color: rgba(199, 109, 42, 0.36);
  box-shadow: 0 18px 42px rgba(62, 48, 30, 0.14);
  transform: translateY(-2px);
}

.stock-list-card.is-active {
  border-color: rgba(15, 123, 92, 0.28);
  background: linear-gradient(135deg, rgba(15, 123, 92, 0.1), rgba(255, 250, 240, 0.86));
}

.stock-list-empty {
  grid-column: 1 / -1;
  color: var(--muted);
  text-align: center;
  padding: 34px 16px;
}

.stock-list-heading {
  display: grid;
  gap: 2px;
}

.stock-list-heading strong {
  color: var(--ink);
  font-family: "Newsreader", serif;
  font-size: 1.5rem;
}

.stock-list-heading small {
  color: var(--muted);
  font-size: 0.82rem;
}

.stock-pill {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--accent-deep);
  font-family: "Space Mono", monospace;
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
}

.stock-list-meta {
  margin-top: 10px;
  color: var(--muted);
  font-size: 0.8rem;
}

.stock-list-actions {
  gap: 8px;
  margin-top: 14px;
}

.stock-action-btn {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 250, 240, 0.72);
  color: var(--ink-soft);
  font-size: 0.78rem;
  font-weight: 800;
  cursor: pointer;
  transition: border-color 0.18s ease, color 0.18s ease, background 0.18s ease;
}

.stock-action-btn:hover {
  border-color: var(--green);
  background: var(--green-soft);
  color: var(--green);
}

.stock-action-delete:hover {
  border-color: var(--red);
  background: var(--red-soft);
  color: var(--red);
}

/* Alerts Page */

.alerts-shell {
  display: grid;
  gap: 20px;
}

.alerts-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(220px, 280px);
  gap: 18px;
  align-items: stretch;
  padding: clamp(24px, 4vw, 42px);
  border-radius: var(--radius-xl);
  background:
    linear-gradient(135deg, rgba(255, 250, 240, 0.94), rgba(240, 228, 208, 0.62)),
    radial-gradient(circle at 88% 14%, rgba(40, 90, 125, 0.14), transparent 22rem),
    var(--paper);
}

.alerts-header h1 {
  margin: 0;
  font-size: clamp(2.2rem, 5vw, 4.2rem);
  line-height: 0.96;
}

.alerts-status-card {
  display: grid;
  align-content: end;
  min-height: 170px;
  padding: 18px;
  border-radius: var(--radius-lg);
  background:
    linear-gradient(150deg, rgba(40, 90, 125, 0.1), rgba(255, 252, 244, 0.9)),
    var(--paper-strong);
}

.alerts-status-card span,
.alert-preview span,
.alert-rule-card span {
  color: var(--accent-deep);
  font-family: "Space Mono", monospace;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.alerts-status-card strong {
  display: block;
  margin-top: 12px;
  color: var(--blue);
  font-family: "Newsreader", serif;
  font-size: 2rem;
  line-height: 1;
}

.alerts-status-card small {
  display: block;
  margin-top: 10px;
  color: var(--muted-strong);
  line-height: 1.5;
}

.alerts-grid {
  display: grid;
  grid-template-columns: minmax(320px, 420px) minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}

.alert-panel,
.alert-rules-section {
  padding: 24px;
  border-radius: var(--radius-xl);
}

.alert-frequency-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.alert-preview {
  margin-top: 22px;
  padding: 18px;
  border: 1px solid rgba(15, 123, 92, 0.24);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(135deg, rgba(15, 123, 92, 0.11), rgba(255, 252, 244, 0.9)),
    var(--paper-strong);
}

.alert-preview strong {
  display: block;
  margin-top: 10px;
  color: var(--green);
  font-family: "Newsreader", serif;
  font-size: 1.55rem;
  line-height: 1.05;
}

.alert-preview p {
  margin: 10px 0 0;
  color: var(--muted-strong);
  line-height: 1.7;
}

.alert-stock-header,
.alert-section-heading,
.alert-rule-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.alert-stock-header h2,
.alert-section-heading h2 {
  margin: 0;
  font-size: clamp(1.5rem, 2.5vw, 2.1rem);
  line-height: 1;
}

.alert-stock-tools {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.alert-stock-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 12px;
  margin-top: 16px;
}

.alert-stock-option {
  position: relative;
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  min-height: 78px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(255, 250, 240, 0.68);
  cursor: pointer;
  transition: border-color 0.18s ease, background 0.18s ease, transform 0.18s ease;
}

.alert-stock-option:hover {
  border-color: rgba(15, 123, 92, 0.28);
  transform: translateY(-1px);
}

.alert-stock-option:has(input:checked) {
  border-color: rgba(15, 123, 92, 0.36);
  background: linear-gradient(135deg, rgba(15, 123, 92, 0.12), rgba(255, 250, 240, 0.86));
}

.alert-stock-option input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.alert-checkmark {
  display: inline-grid;
  width: 24px;
  height: 24px;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: var(--paper-strong);
}

.alert-checkmark::after {
  width: 10px;
  height: 6px;
  border-bottom: 2px solid #fffaf0;
  border-left: 2px solid #fffaf0;
  content: "";
  opacity: 0;
  transform: rotate(-45deg) translateY(-1px);
}

.alert-stock-option input:checked + .alert-checkmark {
  border-color: var(--green);
  background: var(--green);
}

.alert-stock-option input:checked + .alert-checkmark::after {
  opacity: 1;
}

.alert-stock-copy strong,
.alert-rule-card strong {
  display: block;
  color: var(--ink);
  font-family: "Newsreader", serif;
  font-size: 1.35rem;
  line-height: 1;
}

.alert-stock-copy small,
.alert-rule-card small {
  display: block;
  margin-top: 6px;
  color: var(--muted-strong);
  font-size: 0.78rem;
  line-height: 1.45;
}

.alert-stock-date {
  color: var(--muted);
  font-family: "Space Mono", monospace;
  font-size: 0.7rem;
  font-weight: 700;
  white-space: nowrap;
}

.alert-save-button {
  margin-top: 18px;
}

.field-hint-warning {
  color: var(--red);
}

.alert-rules-section {
  display: grid;
  gap: 18px;
}

.alert-rules-list {
  display: grid;
  gap: 12px;
}

.alert-rule-card,
.alert-empty {
  border-radius: var(--radius-lg);
}

.alert-rule-card {
  padding: 16px;
  background:
    linear-gradient(135deg, rgba(255, 252, 244, 0.96), rgba(246, 223, 193, 0.34)),
    var(--paper-strong);
}

.alert-rule-card span {
  color: var(--green);
}

.alert-empty {
  padding: 24px;
  color: var(--muted);
  text-align: center;
}

/* Responsive */

@media (max-width: 1180px) {
  .hero-panel,
  .backtest-shell,
  .alerts-header,
  .alerts-grid {
    grid-template-columns: 1fr;
  }

  .control-panel {
    position: static;
    max-height: none;
    overflow: visible;
  }

  .hero-stats,
  .metrics-grid,
  .decision-strip {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .explainer-body {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 820px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .site-nav {
    width: 100%;
  }

  .nav-link {
    flex: 1;
  }

  .layout {
    width: min(100% - 24px, 1460px);
    padding-top: 18px;
  }

  .hero-panel,
  .stocks-header,
  .alerts-header {
    padding: 24px;
  }

  .hero-stats,
  .field-row,
  .grid,
  .metrics-grid,
  .decision-strip,
  .stocks-toolbar,
  .alert-frequency-grid {
    grid-template-columns: 1fr;
  }

  .status-row,
  .chart-header,
  .chart-toolbar,
  .alert-stock-header,
  .alert-section-heading,
  .alert-rule-card {
    align-items: flex-start;
    flex-direction: column;
  }

  .chart-focus {
    width: 100%;
    max-width: none;
    justify-content: flex-start;
    border-radius: var(--radius-md);
    text-align: left;
  }

  .data-banner {
    grid-template-columns: 1fr;
  }

  .inline-input-row {
    grid-template-columns: 1fr;
  }

  .inline-input-row .primary-button {
    width: 100%;
  }
}

@media (max-width: 520px) {
  .site-brand {
    align-items: flex-start;
  }

  .brand-mark {
    width: 40px;
    height: 40px;
  }

  .hero-panel h1,
  .stocks-header h1,
  .alerts-header h1 {
    font-size: 2.35rem;
  }

  .control-panel,
  .result-shell,
  .alert-panel,
  .alert-rules-section {
    padding: 18px;
    border-radius: 22px;
  }

  .button-row {
    bottom: -18px;
    margin: 20px -18px -18px;
    padding: 16px 18px 18px;
  }

  .pill-group,
  #period-pills {
    grid-template-columns: 1fr;
  }

  .chart-card,
  .trade-card,
  .explainer-body {
    padding: 16px;
  }

  svg {
    height: 170px;
  }

  .stocks-list,
  .alert-stock-list {
    grid-template-columns: 1fr;
  }

  .alert-stock-option {
    grid-template-columns: 28px minmax(0, 1fr);
  }

  .alert-stock-date {
    grid-column: 2;
  }
}