:root {
  color-scheme: light;
  --bg: #f6f7f9;
  --surface: #ffffff;
  --surface-2: #eef2f6;
  --ink: #141820;
  --muted: #5c6675;
  --line: #d9e0e8;
  --line-strong: #b9c4d1;
  --blue: #1463d9;
  --blue-dark: #0f4faf;
  --green: #148653;
  --green-soft: #e7f5ee;
  --red: #b42338;
  --red-soft: #fde8ec;
  --amber: #9a6700;
  --amber-soft: #fff4d6;
  --panel: #101722;
  --panel-2: #172231;
  --panel-line: #263346;
  --panel-muted: #a8b3c4;
  --radius: 8px;
  --shadow: 0 16px 38px rgba(15, 23, 42, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  line-height: 1.55;
  color: var(--ink);
  background: var(--bg);
}

a {
  color: var(--blue);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
summary:focus-visible,
.selectable:focus-visible {
  outline: 3px solid #97b9f2;
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: 12px;
  z-index: 100;
  padding: 9px 12px;
  border-radius: 6px;
  color: white;
  background: var(--panel);
  font-weight: 750;
  transform: translateY(-160%);
  transition: transform 0.15s ease;
}

.skip-link:focus {
  transform: translateY(0);
  text-decoration: none;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}

.nav {
  max-width: 1180px;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  font-weight: 750;
  color: var(--ink);
  letter-spacing: 0;
}

.brand-logo {
  width: auto;
  height: 53px;
  max-width: min(300px, 72vw);
  display: block;
  object-fit: contain;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 14px;
}

.nav-links a {
  color: #313946;
}

.page {
  max-width: 1180px;
  margin: 0 auto;
  padding: 34px 20px 56px;
}

.intro {
  max-width: 780px;
  margin-bottom: 24px;
}

.breadcrumb {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 13px;
}

.breadcrumb ol {
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  list-style: none;
}

.breadcrumb li {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.breadcrumb li + li::before {
  content: "/";
  color: #98a2b3;
}

.breadcrumb a {
  color: #4d596a;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--blue-dark);
  font-weight: 750;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

h1,
h2,
h3 {
  line-height: 1.18;
  letter-spacing: 0;
  color: var(--ink);
}

h1 {
  margin: 0 0 12px;
  font-size: clamp(2rem, 4vw, 3.2rem);
}

h2 {
  margin: 0 0 14px;
  font-size: clamp(1.45rem, 2.5vw, 2rem);
}

h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
}

p {
  margin: 0 0 14px;
}

.lead {
  font-size: 1.1rem;
  color: #394252;
}

.home-hero {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(420px, 1.08fr);
  gap: 26px;
  align-items: center;
  margin-bottom: 26px;
}

.home-hero-copy {
  max-width: 600px;
}

.home-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.sim-preview {
  padding: 16px;
  border: 1px solid var(--panel-line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, #111925 0%, #0f1723 100%);
  color: white;
  box-shadow: 0 20px 44px rgba(15, 23, 42, 0.14);
  display: grid;
  gap: 10px;
}

.sim-preview:hover {
  text-decoration: none;
  border-color: #3b82f6;
}

.sim-preview-head {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  color: var(--panel-muted);
  font-size: 11px;
  font-weight: 750;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.sim-preview-head span {
  padding: 4px 7px;
  border: 1px solid var(--panel-line);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.04);
}

.sim-preview-chart {
  min-height: 210px;
  border-radius: var(--radius);
  background: #0a1019;
  overflow: hidden;
}

.sim-preview-chart svg {
  width: 100%;
  height: 100%;
  min-height: 210px;
  display: block;
}

.preview-grid {
  fill: none;
  stroke: rgba(255, 255, 255, 0.045);
  stroke-width: 1;
}

.preview-drawdown {
  fill: rgba(180, 35, 56, 0.08);
  stroke: none;
}

.preview-curve {
  fill: none;
  stroke: #5fb3ff;
  stroke-width: 2.4;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.preview-hover {
  fill: none;
  stroke: rgba(95, 179, 255, 0.22);
  stroke-width: 1;
}

.sim-preview-chart circle {
  fill: #5fb3ff;
  stroke: #0a1019;
  stroke-width: 3;
}

.sim-preview-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 7px;
}

.sim-preview-metrics span {
  min-width: 0;
  padding: 7px 8px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 6px;
  color: var(--panel-muted);
  background: rgba(255, 255, 255, 0.035);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.sim-preview-metrics strong {
  display: block;
  color: white;
  font-size: 14px;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0;
  text-transform: none;
}

.sim-preview-history {
  display: grid;
  grid-template-columns: repeat(18, minmax(0, 1fr));
  gap: 5px;
}

.sim-preview-history span {
  width: 100%;
  height: 24px;
  border-radius: 5px;
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 12px;
}

.sim-preview-history .win {
  color: #09543a;
  background: #d9f2e4;
}

.sim-preview-history .loss {
  color: #8f1d2e;
  background: #f9d2da;
}

.tool-shell {
  display: grid;
  grid-template-columns: minmax(0, 360px) minmax(0, 1fr);
  gap: 18px;
  align-items: start;
  margin: 22px 0 28px;
}

.control-panel,
.results-panel,
.article-card,
.link-panel,
.calculator-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.control-panel {
  padding: 18px;
}

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

.coin-panel {
  margin: 14px 0 16px;
  padding: 14px;
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  gap: 14px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #f8fafc;
}

.coin {
  width: 82px;
  height: 82px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: white;
  background: linear-gradient(145deg, #bababa, #525252);
  box-shadow: inset 0 2px 8px rgba(255, 255, 255, 0.22), inset 0 -8px 14px rgba(0, 0, 0, 0.2), 0 12px 24px rgba(15, 23, 42, 0.16);
  font-size: 2rem;
  font-weight: 850;
  transition: transform 0.28s ease-out;
}

.coin.flip {
  transform: translateY(-18px) rotateX(420deg);
}

.coin.win-face {
  background: linear-gradient(145deg, #35c47d, #0f6b43);
}

.coin.loss-face {
  background: linear-gradient(145deg, #e06778, #8f1d2e);
}

.coin-label {
  margin: 0 0 4px;
  font-weight: 800;
  color: var(--ink);
}

.coin-note {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.4;
}

.field {
  display: grid;
  gap: 6px;
}

.field label,
.check {
  color: #384250;
  font-size: 13px;
  font-weight: 650;
}

.field label,
.check-text {
  display: flex;
  align-items: flex-start;
}

.check-text {
  min-width: 0;
}

.info-tip {
  position: relative;
  display: inline-flex;
  width: 12px;
  height: 12px;
  margin-left: 6px;
  align-items: center;
  justify-content: center;
  border: 1px solid #6aa8ef;
  border-radius: 50%;
  color: #2f78d4;
  background: #f4f8ff;
  font-size: 9px;
  font-weight: 800;
  line-height: 1;
  cursor: help;
  vertical-align: -2px;
}

.info-tip::after {
  content: attr(data-tip);
  position: absolute;
  left: 50%;
  bottom: calc(100% + 8px);
  z-index: 20;
  width: min(250px, 78vw);
  padding: 8px 9px;
  border: 1px solid var(--panel-line);
  border-radius: 6px;
  color: #f8fafc;
  background: var(--panel);
  box-shadow: 0 12px 26px rgba(15, 23, 42, 0.18);
  font-size: 12px;
  font-weight: 500;
  line-height: 1.35;
  text-align: left;
  white-space: normal;
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 4px);
  transition: opacity 0.12s ease, transform 0.12s ease;
}

.info-tip:hover::after,
.info-tip:focus-visible::after {
  opacity: 1;
  transform: translate(-50%, 0);
}

select,
input,
button {
  font: inherit;
}

select,
input {
  width: 100%;
  height: 40px;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  padding: 9px 10px;
  color: var(--ink);
  background: white;
  line-height: 1.2;
}

.money-input {
  position: relative;
}

.money-input span {
  position: absolute;
  left: 10px;
  top: 50%;
  z-index: 1;
  color: var(--muted);
  font-weight: 750;
  pointer-events: none;
  transform: translateY(-50%);
}

.money-input input {
  padding-left: 28px;
}

.unit-input {
  position: relative;
}

.unit-input span {
  position: absolute;
  top: 50%;
  z-index: 1;
  color: var(--muted);
  font-weight: 750;
  pointer-events: none;
  transform: translateY(-50%);
}

.unit-input-right span {
  right: 10px;
}

.unit-input-right input {
  padding-right: 30px;
}

.preset-row {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.preset-btn {
  min-height: 23px;
  padding: 3px 6px;
  border: 1px solid var(--line);
  color: #384250;
  background: #f8fafc;
  font-size: 11px;
  font-weight: 750;
}

.preset-btn:hover {
  color: var(--ink);
  background: #eef2f6;
}

button,
.button {
  border: 0;
  border-radius: 6px;
  padding: 10px 13px;
  color: white;
  background: var(--blue);
  font-weight: 750;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

button:hover,
.button:hover {
  background: var(--blue-dark);
  text-decoration: none;
}

button.secondary,
.button.secondary {
  color: var(--ink);
  background: var(--surface-2);
  border: 1px solid var(--line);
}

button.secondary:hover,
.button.secondary:hover {
  background: #e2e8f0;
}

button:disabled {
  cursor: default;
  color: #8590a0;
  background: #d8dee7;
}

button:disabled:hover {
  color: #8590a0;
  background: #d8dee7;
}

.button-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 14px;
}

.advanced {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.advanced summary {
  cursor: pointer;
  font-weight: 750;
  color: #303846;
}

.advanced-body {
  display: grid;
  gap: 12px;
  margin-top: 12px;
}

.account-fields {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.account-fields[hidden] {
  display: none;
}

.field[hidden],
.check[hidden] {
  display: none;
}

.check {
  display: flex;
  align-items: center;
  gap: 8px;
}

.check input[type="checkbox"] {
  width: 16px;
  height: 16px;
  padding: 0;
  flex: 0 0 auto;
}

.results-panel {
  overflow: hidden;
}

.results-top {
  padding: 18px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  border-bottom: 1px solid var(--line);
}

.metric {
  min-height: 82px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fbfcfe;
}

.metric span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.metric strong {
  display: block;
  margin-top: 5px;
  color: var(--ink);
  font-size: 1.35rem;
  font-variant-numeric: tabular-nums;
}

.metric.good {
  background: var(--green-soft);
  border-color: #b8e2cc;
}

.metric.bad {
  background: var(--red-soft);
  border-color: #fac8d1;
}

.takeaway {
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
  background: #f8fafc;
  color: #354052;
}

.chart-wrap {
  position: relative;
  padding: 18px;
  background: var(--panel);
}

.chart-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}

.chart-head h2,
.chart-head label {
  color: white;
}

.chart-head h2 {
  margin: 0;
  font-size: 1.05rem;
}

.chart-expand,
.chart-close {
  color: white;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.22);
}

.chart-expand {
  width: 28px;
  height: 28px;
  padding: 0;
  opacity: 0.72;
}

.chart-expand:hover,
.chart-close:hover {
  background: rgba(255, 255, 255, 0.16);
}

.expand-icon {
  width: 17px;
  height: 17px;
  display: block;
  background:
    linear-gradient(currentColor, currentColor) left top / 7px 2px no-repeat,
    linear-gradient(currentColor, currentColor) left top / 2px 7px no-repeat,
    linear-gradient(currentColor, currentColor) right top / 7px 2px no-repeat,
    linear-gradient(currentColor, currentColor) right top / 2px 7px no-repeat,
    linear-gradient(currentColor, currentColor) left bottom / 7px 2px no-repeat,
    linear-gradient(currentColor, currentColor) left bottom / 2px 7px no-repeat,
    linear-gradient(currentColor, currentColor) right bottom / 7px 2px no-repeat,
    linear-gradient(currentColor, currentColor) right bottom / 2px 7px no-repeat;
}

.chart-options {
  display: none;
  flex-wrap: wrap;
  gap: 10px;
}

canvas {
  width: 100%;
  aspect-ratio: 16 / 7;
  min-height: 290px;
  border-radius: var(--radius);
  background: #0c121c;
  display: block;
}

.chart-modal {
  position: fixed;
  inset: 0;
  z-index: 40;
  padding: 18px;
  background: rgba(5, 9, 16, 0.82);
  display: grid;
  place-items: center;
}

.chart-modal[hidden] {
  display: none;
}

.chart-modal-panel {
  width: min(1440px, 100%);
  max-height: calc(100vh - 36px);
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  background: var(--panel);
  display: grid;
  gap: 12px;
}

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

.chart-modal-head h2 {
  margin: 0;
  color: white;
  font-size: 1.05rem;
}

.chart-close {
  padding: 8px 11px;
}

#equityChartLarge {
  min-height: 320px;
  max-height: calc(100vh - 130px);
  aspect-ratio: auto;
}

.history-section {
  padding: 18px;
}

.history-title {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}

.history-title p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.history {
  min-height: 74px;
  max-height: 148px;
  overflow-y: auto;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fbfcfe;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.history span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 25px;
  margin: 3px;
  padding: 3px 6px;
  border-radius: 5px;
  font-weight: 800;
  user-select: none;
}

.win {
  color: #0f5132;
  background: #dff6e9;
}

.loss {
  color: #842029;
  background: #f9d7dd;
}

.selectable {
  cursor: pointer;
}

.selected-range {
  outline: 2px solid #97b9f2;
}

.selected-edge {
  outline-color: var(--blue);
}

.selection-panel {
  margin-top: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.selection-summary {
  padding: 10px 12px;
  color: #354052;
  background: #f8fafc;
  border-bottom: 1px solid var(--line);
  font-size: 13px;
}

.table-wrap {
  max-height: 260px;
  overflow: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

th,
td {
  padding: 8px 10px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

th {
  color: #4d596a;
  background: #f8fafc;
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 22px;
  align-items: start;
  margin-top: 24px;
}

.article-flow {
  display: grid;
  gap: 18px;
}

.article-card,
.calculator-panel {
  padding: 22px;
}

.article-card ul {
  margin: 8px 0 0;
  padding-left: 20px;
}

.ad-slot {
  min-height: 92px;
  display: grid;
  place-items: center;
  border: 1px dashed #aab4c2;
  border-radius: var(--radius);
  color: #667085;
  background: #f2f5f8;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.link-panel {
  padding: 18px;
  position: sticky;
  top: 84px;
}

.link-list {
  display: grid;
  gap: 9px;
  margin-top: 12px;
}

.link-list a {
  padding: 9px 10px;
  border-radius: 6px;
  color: #253042;
  background: #f4f7fa;
}

.link-list a:hover {
  color: var(--blue-dark);
  background: #eaf1fb;
  text-decoration: none;
}

.sidebar-ad {
  min-height: 280px;
  margin-top: 18px;
  display: grid;
  place-items: center;
  border: 1px dashed #aab4c2;
  border-radius: var(--radius);
  color: #667085;
  background: #f2f5f8;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: white;
}

.footer-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 24px 20px;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  color: var(--muted);
  font-size: 14px;
}

.footer-links {
  display: flex;
  gap: 14px;
}

.calculator-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 14px 0;
}

.calc-output {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #f8fafc;
  font-size: 1.1rem;
  font-weight: 800;
}

.note {
  color: var(--muted);
  font-size: 14px;
}

.account-status {
  margin: 0;
}

#withdrawalHint {
  margin: 0;
}

@media (max-width: 920px) {
  .home-hero,
  .tool-shell,
  .content-grid {
    grid-template-columns: 1fr;
  }

  .home-hero-copy {
    max-width: 760px;
  }

  .link-panel {
    position: static;
  }

  .sidebar-ad {
    min-height: 120px;
  }
}

@media (max-width: 700px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
  }

  .brand-logo {
    height: 46px;
  }

  .nav-links {
    flex-wrap: wrap;
    gap: 12px;
  }

  .results-top,
  .calculator-grid {
    grid-template-columns: 1fr;
  }

  .home-actions {
    display: grid;
  }

  .sim-preview {
    padding: 12px;
  }

  .sim-preview-chart,
  .sim-preview-chart svg {
    min-height: 180px;
  }

  .sim-preview-head {
    font-size: 11px;
  }

  .coin-panel {
    grid-template-columns: 1fr;
    justify-items: start;
  }

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

  .account-fields {
    grid-template-columns: 1fr;
  }

  .chart-head,
  .history-title,
  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .footer-links {
    flex-wrap: wrap;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

  .coin.flip {
    transform: none;
  }
}