:root {
  color-scheme: light;
  --bg: #f6f8fa;
  --surface: #ffffff;
  --surface-muted: #eef4f3;
  --text: #15202b;
  --muted: #5d6b78;
  --border: #d7e0e7;
  --accent: #148a78;
  --accent-dark: #0d6659;
  --accent-soft: #e0f4ef;
  --gold: #b98521;
  --ink: #0f3d5e;
  --shadow: 0 10px 30px rgba(15, 61, 94, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px clamp(18px, 4vw, 56px);
  background: rgba(246, 248, 250, 0.92);
  border-bottom: 1px solid rgba(215, 224, 231, 0.86);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  text-decoration: none;
  letter-spacing: 0;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--ink);
  color: #fff;
  font-size: 12px;
  font-weight: 800;
}

.nav {
  display: flex;
  align-items: center;
  gap: 20px;
  color: var(--muted);
  font-size: 14px;
}

.nav a {
  text-decoration: none;
}

.nav a:hover {
  color: var(--text);
}

.image-hero {
  position: relative;
  min-height: 78vh;
  display: grid;
  align-items: center;
  padding: clamp(80px, 11vw, 150px) clamp(20px, 6vw, 86px) clamp(70px, 9vw, 120px);
  background-image: url("/assets/hero-dashboard.png");
  background-size: cover;
  background-position: center;
  overflow: hidden;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(8, 25, 38, 0.82), rgba(8, 25, 38, 0.54));
}

.hero-content {
  position: relative;
  max-width: 780px;
  color: #fff;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero-content .eyebrow {
  color: #9ff1d4;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  margin: 0;
  max-width: 760px;
  font-size: clamp(42px, 7vw, 78px);
  line-height: 0.98;
  letter-spacing: 0;
}

h2 {
  margin: 0;
  font-size: clamp(28px, 4vw, 46px);
  line-height: 1.08;
  letter-spacing: 0;
}

h3 {
  margin: 0 0 8px;
  font-size: 20px;
  line-height: 1.2;
}

.hero-copy {
  max-width: 660px;
  margin: 22px 0 0;
  font-size: clamp(17px, 2vw, 21px);
  color: rgba(255, 255, 255, 0.86);
}

.microcopy,
.fine-print {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.72);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 11px 18px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-weight: 800;
  text-decoration: none;
  transition: transform 180ms ease, background-color 180ms ease, border-color 180ms ease;
}

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

.primary {
  background: var(--accent);
  color: #fff;
}

.primary:hover {
  background: var(--accent-dark);
}

.secondary {
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.38);
  color: #fff;
}

.section {
  padding: clamp(56px, 8vw, 96px) clamp(20px, 6vw, 86px);
}

.section.compact {
  padding-top: clamp(46px, 6vw, 72px);
}

.band {
  background: var(--surface);
  border-block: 1px solid var(--border);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 30px;
}

.section-heading p,
.split p,
.cta-section p,
.feature-card p,
.exchange-card p,
.content-page p,
.article p {
  color: var(--muted);
}

.feature-grid,
.exchange-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.exchange-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.cex-grid {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.feature-card,
.exchange-card,
.stat-panel,
.faq-list details,
.rate-table,
.article-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.feature-card {
  padding: 22px;
}

.feature-kicker {
  display: inline-block;
  margin-bottom: 18px;
  color: var(--gold);
  font-weight: 800;
  font-size: 13px;
}

.exchange-card {
  display: flex;
  flex-direction: column;
  gap: 18px;
  min-height: 282px;
  padding: 22px;
}

.exchange-logo {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  color: #101413;
  font-weight: 900;
}

.logo-image {
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--border);
}

.logo-image img {
  width: 30px;
  height: 30px;
  object-fit: contain;
}

.both {
  background: var(--ink);
  color: #fff;
}

.card-tag {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.binance {
  background: #f0b90b;
}

.okx {
  background: #111;
  color: #fff;
}

.bitget {
  background: #16d2b4;
}

.bitmart {
  background: #275df2;
  color: #fff;
}

.card-button {
  margin-top: auto;
  background: var(--ink);
  color: #fff;
}

.card-actions {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-top: auto;
}

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

.split {
  display: grid;
  grid-template-columns: 1fr minmax(300px, 420px);
  gap: clamp(28px, 6vw, 72px);
  align-items: center;
}

.split .primary,
.content-page .primary,
.article .primary {
  margin-top: 10px;
}

.stat-panel {
  padding: 24px;
}

.stat-row,
.stat-total {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}

.stat-row span,
.stat-total span {
  color: var(--muted);
}

.stat-total {
  margin-top: 10px;
  padding: 18px;
  border: 0;
  border-radius: 8px;
  background: var(--accent-soft);
}

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

.faq-list details {
  padding: 18px 20px;
}

.faq-list summary {
  cursor: pointer;
  font-weight: 800;
}

.cta-section {
  padding: clamp(58px, 8vw, 92px) clamp(20px, 6vw, 86px);
  background: #101413;
  color: #fff;
}

.cta-section p {
  max-width: 680px;
  color: rgba(255, 255, 255, 0.76);
}

.footer {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 24px;
  padding: 34px clamp(20px, 6vw, 86px);
  background: #0b0f0d;
  color: rgba(255, 255, 255, 0.78);
}

.footer strong {
  color: #fff;
}

.footer p {
  margin: 8px 0 0;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 14px;
}

.footer-links a {
  color: #fff;
  text-decoration: none;
}

.fine-print {
  grid-column: 1 / -1;
  color: rgba(255, 255, 255, 0.56);
}

.page-hero {
  padding: clamp(72px, 10vw, 130px) clamp(20px, 6vw, 86px) clamp(50px, 7vw, 80px);
  background: #111614;
  color: #fff;
}

.page-hero p {
  max-width: 760px;
  color: rgba(255, 255, 255, 0.76);
}

.content-page {
  padding: clamp(46px, 7vw, 86px) clamp(20px, 6vw, 86px);
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(300px, 420px);
  gap: clamp(28px, 6vw, 72px);
}

.checklist {
  display: grid;
  gap: 12px;
  padding: 0;
  margin: 24px 0;
  list-style: none;
}

.checklist li {
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
}

.rate-table {
  width: 100%;
  border-collapse: collapse;
  overflow: hidden;
}

.table-wrap {
  overflow-x: auto;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.offer-table {
  min-width: 860px;
  background: var(--surface);
}

.rate-table th,
.rate-table td {
  padding: 14px;
  border-bottom: 1px solid var(--border);
  text-align: left;
}

.rate-table th {
  color: var(--muted);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.table-link {
  color: var(--accent-dark);
  font-weight: 800;
  text-decoration: none;
}

.table-link:hover {
  text-decoration: underline;
}

.side-panel {
  position: sticky;
  top: 86px;
  align-self: start;
}

.calculator {
  display: grid;
  gap: 18px;
}

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

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

.field-grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

input {
  min-height: 46px;
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  font: inherit;
}

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

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

.result-grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.result-card,
.article-card,
.tool-card,
.video-card {
  padding: 20px;
}

.result-card,
.tool-card,
.video-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.result-card {
  background: linear-gradient(180deg, #fff, var(--accent-soft));
  border-color: rgba(20, 138, 120, 0.26);
}

.result-card span {
  color: var(--muted);
  font-size: 13px;
}

.result-card strong {
  display: block;
  margin-top: 6px;
  color: var(--accent-dark);
  font-size: 26px;
}

.article {
  max-width: 860px;
  padding: clamp(46px, 7vw, 86px) clamp(20px, 6vw, 86px);
}

.article h2 {
  margin-top: 42px;
  font-size: clamp(24px, 3vw, 34px);
}

.article-card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.calculator-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.calculator-grid .tool-card:last-child {
  grid-column: 1 / -1;
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.video-placeholder {
  display: grid;
  place-items: center;
  aspect-ratio: 16 / 9;
  margin-bottom: 16px;
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(15, 61, 94, 0.92), rgba(20, 138, 120, 0.86)),
    var(--ink);
  color: rgba(255, 255, 255, 0.78);
  font-weight: 900;
}

.article-card {
  display: block;
  color: inherit;
  text-decoration: none;
}

@media (max-width: 960px) {
  .feature-grid,
  .exchange-grid,
  .cex-grid,
  .article-card-grid,
  .calculator-grid,
  .video-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .split,
  .content-grid {
    grid-template-columns: 1fr;
  }

  .side-panel {
    position: static;
  }
}

@media (max-width: 720px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 2px;
  }

  .image-hero {
    min-height: 72vh;
    background-position: 58% center;
  }

  .feature-grid,
  .exchange-grid,
  .cex-grid,
  .field-grid,
  .field-grid.two,
  .field-grid.three,
  .result-grid,
  .result-grid.two,
  .result-grid.three,
  .article-card-grid,
  .calculator-grid,
  .video-grid,
  .footer {
    grid-template-columns: 1fr;
  }

  .calculator-grid .tool-card:last-child {
    grid-column: auto;
  }

  .footer-links {
    justify-content: flex-start;
  }
}