:root {
  --bg-main: #f5f7fb;
  --bg-soft: #eef2f8;
  --card-bg: #ffffff;
  --card-border: rgba(122, 138, 160, 0.28);
  --ink: #121a2b;
  --ink-soft: #5f6f86;
  --brand: #2962ff;
  --brand-strong: #1f4ae0;
  --accent: #5688ff;
  --loss: #d44949;
  --gain: #0e9f6e;
  --radius-lg: 16px;
  --radius-md: 10px;
  --shadow: 0 10px 24px rgba(16, 28, 49, 0.08);
  --font-display: "Manrope", "Noto Sans SC", sans-serif;
  --font-body: "Noto Sans SC", "Manrope", sans-serif;
  --text-xs: 0.78rem;
  --text-sm: 0.88rem;
  --text-md: 0.98rem;
  --text-lg: 1.08rem;
  --text-xl: 1.2rem;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background-color: var(--bg-main);
  background-image:
    linear-gradient(rgba(35, 46, 66, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(35, 46, 66, 0.03) 1px, transparent 1px),
    linear-gradient(180deg, var(--bg-main), var(--bg-soft));
  background-size:
    32px 32px,
    32px 32px,
    100% 100%;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: clamp(15px, 0.2vw + 14.5px, 16px);
  line-height: 1.58;
  position: relative;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.bg-orb {
  display: none;
}

.orb-left {
  display: none;
}

.orb-right {
  display: none;
}

.layout {
  width: min(1260px, 94vw);
  margin: 18px auto 30px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  position: relative;
  z-index: 2;
}

.panel {
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  background: var(--card-bg);
  box-shadow: var(--shadow);
  padding: 18px;
}

.reveal {
  animation: reveal-up 460ms ease both;
}

.hero {
  position: relative;
  background: linear-gradient(180deg, #ffffff, #fbfcff);
}

.hero::after {
  content: none;
}

.kicker {
  margin: 0;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #4b5f7c;
}

h1,
h2 {
  margin: 0;
}

h1 {
  margin-top: 6px;
  font-family: var(--font-display);
  font-size: clamp(1.78rem, 2.2vw, 2.26rem);
  font-weight: 800;
  letter-spacing: -0.015em;
  line-height: 1.15;
}

h2 {
  font-family: var(--font-display);
  font-size: clamp(1.06rem, 1.2vw, 1.28rem);
  font-weight: 700;
  letter-spacing: -0.008em;
  line-height: 1.25;
}

.hero-copy {
  margin: 10px 0 0;
  font-size: 0.96rem;
  line-height: 1.65;
  color: var(--ink-soft);
  max-width: 860px;
}

.section-head p {
  margin: 5px 0 0;
  font-size: 0.84rem;
  color: var(--ink-soft);
  line-height: 1.55;
}

.controls {
  position: relative;
  background: linear-gradient(180deg, #ffffff, #f8faff);
  box-shadow: var(--shadow);
}

.control-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(123, 139, 160, 0.3);
}

.control-head-main {
  min-width: 0;
  display: grid;
  gap: 12px;
}

.control-head-main h2 {
  margin: 0;
}

.control-head-main p {
  margin: 0;
  max-width: 62ch;
  color: #586b87;
  font-size: 0.92rem;
  line-height: 1.55;
}

.section-tag {
  margin: 0;
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid rgba(118, 136, 161, 0.32);
  background: rgba(240, 244, 251, 0.95);
  color: #54657f;
  font: 700 0.5rem / 1.1 var(--font-display);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  width: fit-content;
  margin-bottom: 8px;
}

.control-head-meta {
  min-width: 268px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  padding: 0;
}

.control-head-meta p {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 8px 10px;
  border: 1px solid rgba(118, 136, 161, 0.24);
  border-radius: 9px;
  background: #f7faff;
  font-size: 0.74rem;
  color: #5d6f88;
}

.control-head-meta span {
  letter-spacing: 0.08em;
}

.control-head-meta strong {
  color: #1f2937;
  font-size: 0.82rem;
  font-weight: 700;
}

.control-grid {
  margin-top: 10px;
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  align-items: start;
  grid-auto-flow: row dense;
}

.field {
  position: relative;
  border: 1px solid rgba(122, 138, 160, 0.32);
  border-radius: 10px;
  background: #ffffff;
  padding: 10px 12px 11px;
  box-shadow: 0 1px 2px rgba(19, 30, 48, 0.05);
}

.field::before {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  top: 0;
  height: 1px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(41, 98, 255, 0.52), rgba(41, 98, 255, 0));
}

.field legend,
.field > span {
  display: block;
  color: #5e6a7f;
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 5px;
}

.field legend {
  letter-spacing: 0.08em;
}

.field-asset {
  grid-column: 1 / 6;
}

.field-frequency {
  grid-column: 6 / 10;
}

.field-precision {
  grid-column: 10 / 13;
}

.field-mode {
  grid-column: 1 / 6;
}

.field-date {
  grid-column: 6 / 13;
  grid-row: 2 / span 2;
}

.field-amount {
  grid-column: 1 / 6;
}

.choice-row {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-top: 7px;
  border: 1px solid rgba(122, 138, 160, 0.28);
  border-radius: 8px;
  padding: 7px 8px;
  background: #f9fbfe;
  font-size: 0.89rem;
  font-weight: 600;
}

.choice-row span {
  color: #2f3d53;
}

.choice-row input:checked + span {
  color: #1f2a3a;
  font-weight: 700;
}

.choice-row input[type="checkbox"] {
  inline-size: 16px;
  block-size: 16px;
}

.pill-group {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 7px;
}

.choice-pill {
  position: relative;
  display: inline-flex;
  align-items: center;
  width: fit-content;
  border-radius: 8px;
  border: 1px solid rgba(122, 138, 160, 0.28);
  padding: 0;
  background: #f7f9fc;
  overflow: hidden;
  line-height: 1;
}

.choice-pill input[type="radio"] {
  position: absolute;
  inset: 0;
  opacity: 0;
}

.choice-pill span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 7px 11px;
  font-size: 0.82rem;
  font-weight: 600;
  color: #43536a;
  transition: background-color 140ms ease, color 140ms ease;
}

.choice-pill input[type="radio"]:checked + span {
  background: #2962ff;
  color: #fff;
}

input[type="checkbox"],
input[type="radio"] {
  accent-color: var(--brand);
}

.controls input[type="checkbox"],
.controls input[type="radio"] {
  accent-color: #2962ff;
}

.input-field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.date-field {
  background: #ffffff;
}

.date-input-row {
  display: flex;
  gap: 10px;
  align-items: center;
  margin-top: 2px;
}

#startDateInput {
  flex: 1 1 auto;
  min-width: 0;
}

.date-open-btn {
  border-radius: 8px;
  padding: 9px 12px;
  border: 1px solid rgba(122, 138, 160, 0.33);
  background: #f2f5fa;
  color: #33465f;
  font-weight: 600;
  box-shadow: none;
  white-space: nowrap;
}

.date-open-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(29, 42, 62, 0.12);
}

.date-hint {
  margin: 2px 0 0;
  color: var(--ink-soft);
  font-size: var(--text-sm);
  line-height: 1.35;
}

.date-quick-row {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.date-quick-btn {
  border-radius: 8px;
  padding: 5px 9px;
  border: 1px solid rgba(122, 138, 160, 0.33);
  background: #f5f8fc;
  color: #3b4e67;
  font-size: 0.8rem;
  font-weight: 600;
  box-shadow: none;
}

.date-quick-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 11px rgba(29, 42, 62, 0.12);
}

.date-quick-btn.active {
  border-color: rgba(41, 98, 255, 0.5);
  background: rgba(41, 98, 255, 0.12);
  color: #2447ab;
}

input[type="date"],
input[type="number"] {
  border: 1px solid rgba(122, 138, 160, 0.35);
  border-radius: 8px;
  padding: 9px 11px;
  font: 600 0.9rem / 1.35 var(--font-body);
  color: #1f2a3a;
  background: #fcfdff;
}

input:focus-visible,
button:focus-visible {
  outline: 2px solid rgba(41, 98, 255, 0.34);
  outline-offset: 2px;
}

.control-actions {
  margin-top: 11px;
  padding-top: 11px;
  border-top: 1px solid rgba(123, 139, 160, 0.34);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

#simulateBtn {
  min-width: 172px;
  border-radius: 8px;
  padding: 9px 14px;
  letter-spacing: 0.01em;
  background: #2962ff;
  box-shadow: 0 6px 14px rgba(41, 98, 255, 0.28);
}

#simulateBtn:hover {
  box-shadow: 0 8px 18px rgba(41, 98, 255, 0.34);
}

.controls .status-text {
  color: #5e7089;
  font-size: 0.82rem;
}

button {
  appearance: none;
  border: none;
  border-radius: 8px;
  padding: 9px 14px;
  font: 700 var(--text-md) / 1.2 var(--font-display);
  font-weight: 700;
  color: #fff;
  background: var(--brand);
  box-shadow: 0 6px 14px rgba(41, 98, 255, 0.25);
  cursor: pointer;
  transition: transform 140ms ease, box-shadow 140ms ease;
}

button:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 18px rgba(41, 98, 255, 0.32);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.56;
  transform: none;
  box-shadow: none;
}

.ghost-btn {
  padding: 7px 12px;
  border: 1px solid rgba(122, 138, 160, 0.38);
  background: #f3f6fb;
  color: #2e4059;
  font-weight: 600;
  box-shadow: none;
}

.ghost-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 10px rgba(27, 41, 63, 0.14);
}

.status-text {
  margin: 0;
  color: var(--ink-soft);
  font-size: var(--text-sm);
  font-weight: 600;
  line-height: 1.45;
}

.status-text.error {
  color: var(--loss);
}

.status-text.success {
  color: var(--gain);
}

.analysis-shell {
  display: grid;
  grid-template-columns: minmax(0, 2.15fr) minmax(312px, 1fr);
  gap: 12px;
  align-items: start;
}

.chart-panel {
  min-width: 0;
}

.chart-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 12px;
}

.chart-tools {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.range-window-text {
  margin: 0;
  color: #617088;
  font-size: 0.82rem;
  text-align: right;
}

.chart-wrap {
  position: relative;
  margin-top: 10px;
  border-radius: 12px;
  border: 1px solid rgba(122, 138, 160, 0.34);
  background: #ffffff;
  padding: 10px 10px 12px;
}

.chart-canvas-wrap {
  height: 410px;
}

#equityChart {
  display: block;
  width: 100%;
  height: 100%;
}

.axis-range-overlay {
  margin-top: 0;
  pointer-events: none;
}

.time-slider-track {
  position: relative;
  height: 22px;
  --range-start: 0%;
  --range-end: 100%;
  pointer-events: auto;
}

.time-slider-track::before,
.time-slider-track::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  height: 4px;
  border-radius: 999px;
}

.time-slider-track::before {
  background: rgba(126, 141, 161, 0.3);
}

.time-slider-track::after {
  left: var(--range-start);
  right: calc(100% - var(--range-end));
  background: linear-gradient(90deg, rgba(41, 98, 255, 0.9), rgba(86, 136, 255, 0.9));
}

.time-slider-track input[type="range"] {
  appearance: none;
  position: absolute;
  inset: 0;
  margin: 0;
  width: 100%;
  background: none;
  pointer-events: none;
}

.time-slider-track input[type="range"]::-webkit-slider-runnable-track {
  height: 4px;
  background: transparent;
}

.time-slider-track input[type="range"]::-webkit-slider-thumb {
  appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid #fff;
  background: #2962ff;
  margin-top: -5px;
  box-shadow: 0 2px 8px rgba(25, 69, 112, 0.3);
  pointer-events: auto;
  cursor: ew-resize;
}

.time-slider-track input[type="range"]::-moz-range-track {
  height: 4px;
  background: transparent;
}

.time-slider-track input[type="range"]::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border: 2px solid #fff;
  border-radius: 50%;
  background: #2962ff;
  box-shadow: 0 2px 8px rgba(25, 69, 112, 0.3);
  pointer-events: auto;
  cursor: ew-resize;
}

.time-slider-track input[type="range"]:disabled::-webkit-slider-thumb,
.time-slider-track input[type="range"]:disabled::-moz-range-thumb {
  background: #8ba49f;
  cursor: not-allowed;
}

.result {
  align-self: start;
  position: sticky;
  top: 18px;
  max-height: calc(100vh - 36px);
  overflow: auto;
}

.summary-grid {
  margin-top: 12px;
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr;
}

.summary-card {
  border: 1px solid rgba(122, 138, 160, 0.32);
  border-radius: 10px;
  background: #fff;
  padding: 11px;
}

.summary-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
}

.summary-sub {
  margin: 6px 0 0;
  color: var(--ink-soft);
  font-size: var(--text-sm);
}

.metric-list {
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 7px;
}

.metric-list li {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: baseline;
}

.metric-list span {
  color: var(--ink-soft);
  font-size: var(--text-sm);
}

.metric-list strong {
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-weight: 700;
}

.gain {
  color: var(--gain);
}

.loss {
  color: var(--loss);
}

@keyframes reveal-up {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1120px) {
  .layout {
    width: min(1180px, 95vw);
  }

  .control-head {
    grid-template-columns: 1fr;
    align-items: start;
    gap: 12px;
  }

  .control-head-meta {
    min-width: 0;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .control-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 9px;
  }

  .field-asset,
  .field-frequency,
  .field-precision,
  .field-mode,
  .field-amount {
    grid-column: auto;
    grid-row: auto;
  }

  .field-date {
    grid-column: 1 / -1;
    grid-row: auto;
  }

  .date-quick-row {
    gap: 6px;
  }

  .analysis-shell {
    grid-template-columns: minmax(0, 1.9fr) minmax(292px, 1fr);
  }

  .chart-canvas-wrap {
    height: 390px;
  }
}

@media (max-width: 920px) {
  .analysis-shell {
    grid-template-columns: 1fr;
  }

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

  .summary-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .control-grid {
    grid-template-columns: 1fr;
  }

  .control-head-meta {
    grid-template-columns: 1fr;
  }

  .control-head-main p {
    max-width: none;
    font-size: 0.88rem;
  }

  .field-date {
    grid-column: auto;
  }

  .control-actions {
    align-items: stretch;
    gap: 10px;
  }

  .control-actions button {
    width: 100%;
  }

  .chart-head {
    align-items: flex-start;
    flex-direction: column;
  }

  .chart-tools {
    width: 100%;
    justify-content: space-between;
  }

  .range-window-text {
    text-align: left;
  }

  .chart-canvas-wrap {
    height: 330px;
  }

  .summary-grid {
    grid-template-columns: 1fr;
  }

  .date-input-row {
    flex-wrap: wrap;
  }
}

@media (max-width: 560px) {
  .panel {
    padding: 16px;
  }

  .layout {
    margin-top: 14px;
  }

  .chart-canvas-wrap {
    height: 286px;
  }

  .ghost-btn {
    padding: 6px 11px;
  }
}