:root {
  color-scheme: dark;
  --bg: #08111f;
  --panel: rgba(16, 29, 48, 0.78);
  --line: rgba(148, 163, 184, 0.16);
  --muted: #8fa3bc;
  --text: #ecf4ff;
  --cyan: #30d5c8;
  --blue: #5b8cff;
  --red: #ff6b7a;
  --green: #35d399;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  font: 15px/1.6 Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 12% 15%, rgba(48, 213, 200, 0.11), transparent 30%),
    radial-gradient(circle at 88% 8%, rgba(91, 140, 255, 0.14), transparent 32%),
    var(--bg);
}

.container { width: min(1160px, calc(100% - 32px)); margin: 0 auto; padding: 54px 0 64px; }
.hero { display: grid; grid-template-columns: 1.2fr .8fr; gap: 36px; align-items: end; margin-bottom: 28px; }
.eyebrow { color: var(--cyan); letter-spacing: .16em; font-size: 12px; font-weight: 700; }
h1 { margin: 10px 0 12px; font-size: clamp(32px, 5vw, 58px); line-height: 1.08; letter-spacing: -.04em; }
.subtitle, .muted { color: var(--muted); }
.subtitle { max-width: 640px; font-size: 16px; }

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: 0 22px 70px rgba(0, 0, 0, .24);
  backdrop-filter: blur(18px);
}
.search { padding: 20px; }
.form-row { display: grid; grid-template-columns: 1fr .7fr; gap: 12px; }
label { display: block; color: var(--muted); font-size: 12px; margin: 0 0 6px 2px; }
input, select {
  width: 100%; height: 48px; border: 1px solid var(--line); border-radius: 12px;
  background: rgba(3, 10, 20, .72); color: var(--text); padding: 0 14px; font: inherit; outline: none;
}
input:focus, select:focus { border-color: var(--cyan); box-shadow: 0 0 0 3px rgba(48, 213, 200, .1); }
select { cursor: pointer; }
.form-row button { grid-column: 1 / -1; }
button {
  align-self: end; height: 48px; border: 0; border-radius: 12px; padding: 0 24px;
  color: #04131a; font-weight: 800; cursor: pointer; background: linear-gradient(135deg, var(--cyan), #7ce7b8);
}
button:disabled { opacity: .6; cursor: wait; }
.hint { color: var(--muted); font-size: 12px; margin: 10px 2px 0; }
.cooldown {
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
  margin-top: 14px; padding: 10px 12px; border: 1px solid rgba(48, 213, 200, .2);
  border-radius: 12px; color: var(--cyan); background: rgba(48, 213, 200, .06); font-size: 13px;
}
.cooldown strong { font-variant-numeric: tabular-nums; letter-spacing: .08em; }
.cooldown.hidden { display: none; }
.cooldown.active { border-color: rgba(243, 201, 105, .28); color: #f3c969; background: rgba(243, 201, 105, .07); }

.history { margin: 0 0 20px; padding: 20px; }
.history-head { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-bottom: 14px; }
.history-head h2 { margin: 0; font-size: 18px; }
.history-head p { margin: 2px 0 0; font-size: 12px; }
.history-list { display: grid; gap: 8px; }
.history-item {
  width: 100%; height: auto; min-height: 62px; padding: 10px 14px; text-align: left;
  display: grid; grid-template-columns: 1.25fr repeat(4, 1fr); align-items: center; gap: 12px;
  color: var(--text); background: rgba(3, 10, 20, .48); border: 1px solid var(--line); border-radius: 12px;
  font-weight: 400;
}
.history-item:hover { border-color: rgba(48, 213, 200, .45); background: rgba(48, 213, 200, .06); }
.history-identity, .history-stat { display: grid; min-width: 0; }
.history-identity strong { font-size: 15px; }
.history-item small { color: var(--muted); font-size: 11px; font-weight: 400; }
.history-stat strong { font-size: 13px; white-space: nowrap; }
.history-empty { padding: 18px; text-align: center; color: var(--muted); font-size: 13px; }

.loading { display: none; padding: 34px; text-align: center; color: var(--muted); margin-top: 20px; }
.loading.active { display: block; }
.spinner { width: 28px; height: 28px; margin: 0 auto 12px; border: 3px solid var(--line); border-top-color: var(--cyan); border-radius: 50%; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.error { display: none; margin-top: 20px; padding: 15px 18px; border: 1px solid rgba(255,107,122,.3); background: rgba(255,107,122,.09); color: #ffc1c8; border-radius: 14px; }
.error.active { display: block; }
.results { display: none; margin-top: 22px; gap: 18px; }
.results.active { display: grid; }
.result-head { padding: 22px 24px; display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.result-head h2 { margin: 0; font-size: 21px; }
.tag { border: 1px solid rgba(48,213,200,.25); background: rgba(48,213,200,.08); color: var(--cyan); border-radius: 999px; padding: 5px 10px; font-size: 12px; }
.plain-summary { display: flex; gap: 14px; align-items: flex-start; padding: 18px 20px; border-left: 4px solid var(--blue); }
.plain-summary.good { border-left-color: var(--green); background: rgba(53, 211, 153, .07); }
.plain-summary.caution { border-left-color: #f3c969; background: rgba(243, 201, 105, .07); }
.plain-summary.bad { border-left-color: var(--red); background: rgba(255, 107, 122, .07); }
.summary-icon { flex: 0 0 auto; padding: 4px 8px; border-radius: 7px; color: var(--text); background: rgba(148, 163, 184, .15); font-size: 11px; font-weight: 700; }
.plain-summary strong { display: block; font-size: 17px; }
.plain-summary p { margin: 5px 0 2px; color: var(--text); }
.plain-summary small { color: var(--muted); font-size: 11px; }

.metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.metric { padding: 18px; }
.metric span { display: block; color: var(--muted); font-size: 12px; }
.metric strong { display: block; margin-top: 6px; font-size: 24px; letter-spacing: -.03em; }
.metric small { display: block; min-height: 34px; margin-top: 5px; color: var(--muted); font-size: 11px; line-height: 1.45; }
.positive { color: var(--green); }
.negative { color: var(--red); }

.risk-comparison { padding: 22px; }
.risk-comparison .panel-title { align-items: flex-start; }
.risk-comparison .panel-title span { display: block; margin-top: 3px; font-size: 11px; }
.risk-comparison-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.risk-card { padding: 14px; border: 1px solid var(--line); border-radius: 14px; background: rgba(3, 10, 20, .38); }
.risk-card h4 { margin: 0 0 11px; font-size: 14px; }
.risk-stat { display: flex; justify-content: space-between; gap: 12px; padding: 6px 0; border-bottom: 1px solid var(--line); }
.risk-stat:last-child { border-bottom: 0; }
.risk-stat span { color: var(--muted); font-size: 11px; }
.risk-stat strong { font-size: 12px; font-variant-numeric: tabular-nums; }
.risk-guide { margin: 12px 0 0; color: var(--muted); font-size: 11px; }

.grid-two { display: grid; grid-template-columns: 1.35fr .65fr; gap: 18px; }
.chart-panel, .params { padding: 22px; }
.panel-title { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.panel-title h3 { margin: 0; font-size: 16px; }
#chart { width: 100%; height: auto; min-height: 300px; overflow: visible; cursor: zoom-in; user-select: none; touch-action: none; }
#chart.is-zoomed { cursor: grab; }
#chart.is-dragging { cursor: grabbing; }
.chart-guide { stroke: rgba(148, 163, 184, .12); stroke-width: 1; }
.chart-axis-label { fill: var(--muted); font-size: 10px; font-variant-numeric: tabular-nums; }
.grid-level { stroke: rgba(91, 140, 255, .28); stroke-width: 1; stroke-dasharray: 5 5; }
.grid-level.center { stroke: rgba(91, 140, 255, .72); stroke-width: 1.5; }
.candle line { stroke-width: 1; }
.candle rect { stroke-width: 1; }
.candle.rising line, .candle.rising rect { stroke: var(--red); fill: rgba(255, 107, 122, .7); }
.candle.falling line, .candle.falling rect { stroke: var(--green); fill: rgba(53, 211, 153, .7); }
.trade-marker { cursor: help; }
.trade-marker line { stroke-width: 1.5; stroke-dasharray: 3 2; }
.trade-marker rect { stroke: var(--bg); stroke-width: 1.5; }
.trade-marker text { fill: #04131a; stroke: none; font-size: 11px; font-weight: 900; }
.trade-marker.buy line { stroke: var(--cyan); }
.trade-marker.buy rect { fill: var(--cyan); }
.trade-marker.sell line { stroke: #f3c969; }
.trade-marker.sell rect { fill: #f3c969; }
.chart-legend { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 6px 10px; color: var(--muted); font-size: 11px; }
.chart-actions { display: flex; flex-wrap: wrap; align-items: center; justify-content: flex-end; gap: 8px 12px; }
.chart-control-button {
  flex: 0 0 auto; height: 34px; padding: 0 12px; border: 1px solid rgba(48, 213, 200, .28);
  color: var(--cyan); background: rgba(48, 213, 200, .07); font-size: 12px; font-weight: 700;
}
.chart-control-button:hover:not(:disabled) { border-color: var(--cyan); background: rgba(48, 213, 200, .13); }
.chart-control-button:disabled { opacity: .4; cursor: default; }
.chart-panel:fullscreen {
  display: flex; flex-direction: column; width: 100vw; height: 100vh; padding: 24px;
  border: 0; border-radius: 0; background: var(--bg);
}
.chart-panel:fullscreen .panel-title { flex: 0 0 auto; }
.chart-panel:fullscreen #chart { flex: 1 1 auto; width: 100%; height: calc(100vh - 92px); min-height: 0; }
.chart-legend span::before { content: ''; display: inline-block; width: 8px; height: 8px; margin-right: 4px; border-radius: 2px; }
.legend-rise::before { background: var(--red); }
.legend-fall::before { background: var(--green); }
.legend-buy::before { background: var(--cyan); transform: rotate(45deg); }
.legend-sell::before { background: #f3c969; transform: rotate(45deg); }
.legend-grid::before { height: 2px !important; background: var(--blue); vertical-align: middle; }
.param-list { display: grid; gap: 11px; }
.is-hidden { display: none !important; }
.param { display: flex; justify-content: space-between; gap: 18px; border-bottom: 1px solid var(--line); padding-bottom: 10px; }
.param strong { text-align: right; }
.condition-rule { display: grid; gap: 3px; padding: 10px 12px; border-bottom: 1px solid var(--line); font-size: 12px; }
.condition-rule:last-child { border-bottom: 0; }
.condition-rule span { color: var(--muted); }
.condition-rule.buy strong { color: var(--red); }
.condition-rule.sell strong { color: var(--green); }
.param:last-child { border: 0; }
.param span { color: var(--muted); }
.grid-ladder { margin-top: 16px; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
.ladder-row { display: grid; grid-template-columns: .8fr 1fr 1fr; gap: 8px; padding: 7px 9px; border-bottom: 1px solid var(--line); font-size: 11px; }
.ladder-row:last-child { border-bottom: 0; }
.ladder-row.header { color: var(--muted); background: rgba(3, 10, 20, .38); }
.ladder-row strong, .ladder-row span:not(:first-child) { text-align: right; font-variant-numeric: tabular-nums; }
.ladder-row.sell strong { color: var(--green); }
.ladder-row.buy strong { color: var(--red); }
.ladder-row.base { background: rgba(91, 140, 255, .08); }

.details { padding: 22px; }
.assumptions { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px 20px; color: var(--muted); font-size: 13px; padding-left: 18px; }
.disclaimer { color: #f3c969; font-size: 12px; border-top: 1px solid var(--line); padding-top: 14px; margin-top: 14px; }

@media (max-width: 820px) {
  .hero, .grid-two { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .metrics, .risk-comparison-grid { grid-template-columns: repeat(2, 1fr); }
  .history-item { grid-template-columns: repeat(2, 1fr); }
  .history-identity { grid-column: 1 / -1; }
  .assumptions { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .container { width: min(100% - 20px, 1160px); padding-top: 28px; }
  .metrics { grid-template-columns: 1fr 1fr; gap: 9px; }
  .risk-comparison-grid { grid-template-columns: 1fr; }
  .metric { padding: 14px; }
  .metric strong { font-size: 19px; }
}