:root {
  --brand: #ffbd14;
  --brand-dark: #17140a;
  --payable: #ff8c00;
  --receivable: #32c75c;
  --text: #151515;
  --muted: #777a82;
  --line: #e8e9ee;
  --background: #f7f8fa;
  --card: #ffffff;
  --shadow: 0 20px 50px rgba(30, 25, 5, 0.10);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: var(--background);
}

a {
  color: inherit;
  text-decoration: none;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(20px, 5vw, 72px);
  background: rgba(247, 248, 250, 0.86);
  border-bottom: 1px solid rgba(232, 233, 238, 0.78);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
}

.brand img {
  width: 34px;
  height: 34px;
  border-radius: 8px;
}

nav {
  display: flex;
  align-items: center;
  gap: 22px;
  color: var(--muted);
  font-size: 15px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 430px);
  gap: clamp(28px, 6vw, 76px);
  align-items: center;
  min-height: calc(100vh - 72px);
  padding: clamp(54px, 8vw, 96px) clamp(20px, 5vw, 72px);
}

.hero-copy { max-width: 650px; }

.eyebrow {
  margin: 0 0 12px;
  color: #a46a00;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0;
}

h1, h2, h3, p { letter-spacing: 0; }

h1 {
  margin: 0;
  font-size: clamp(42px, 7vw, 78px);
  line-height: 1.05;
}

.lead {
  max-width: 580px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: clamp(17px, 2.2vw, 22px);
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.primary-button,
.secondary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  border-radius: 999px;
  font-weight: 700;
}

.primary-button {
  color: var(--brand-dark);
  background: var(--brand);
  box-shadow: 0 12px 26px rgba(255, 189, 20, 0.28);
}

.secondary-button {
  color: var(--text);
  background: var(--card);
  border: 1px solid var(--line);
}

.hero-card {
  padding: 24px;
  border-radius: 28px;
  background: var(--card);
  box-shadow: var(--shadow);
}

.app-icon-large {
  display: block;
  width: 160px;
  height: 160px;
  margin: 0 auto 22px;
  border-radius: 36px;
}

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

.summary-grid > div {
  padding: 18px;
  border-radius: 18px;
  background: #fafafa;
}

.summary-label {
  color: var(--receivable);
  font-weight: 700;
}

.summary-label.payable { color: var(--payable); }

.summary-grid strong {
  display: block;
  margin-top: 12px;
  font-size: 30px;
}

.summary-grid small,
.record-row small {
  display: block;
  margin-top: 5px;
  color: var(--muted);
}

.record-list {
  margin-top: 16px;
  border-radius: 18px;
  background: #fafafa;
  overflow: hidden;
}

.record-row {
  display: grid;
  grid-template-columns: 28px 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 16px 18px;
}

.record-row + .record-row { border-top: 1px solid var(--line); }

.dot {
  width: 24px;
  height: 24px;
  border-radius: 999px;
}

.dot.green { background: var(--receivable); }
.dot.orange { background: var(--payable); }

.section {
  padding: 72px clamp(20px, 5vw, 72px);
}

.section-title {
  max-width: 720px;
  margin-bottom: 26px;
}

.section h2,
.privacy-band h2 {
  margin: 0;
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.18;
}

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

.feature-grid article,
.privacy-band,
.policy-card {
  border-radius: 24px;
  background: var(--card);
  box-shadow: 0 14px 34px rgba(30, 25, 5, 0.06);
}

.feature-grid article { padding: 24px; }

.feature-grid h3 {
  margin: 0 0 10px;
  font-size: 20px;
}

.feature-grid p,
.privacy-band p,
.policy-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
}

.privacy-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin: 0 clamp(20px, 5vw, 72px) 72px;
  padding: clamp(26px, 4vw, 42px);
}

.privacy-band div { max-width: 760px; }

.policy-page {
  padding: 48px clamp(20px, 5vw, 72px) 72px;
}

.policy-card {
  max-width: 880px;
  margin: 0 auto;
  padding: clamp(28px, 5vw, 56px);
}

.policy-card h1 { font-size: clamp(34px, 5vw, 54px); }

.policy-card h2 {
  margin: 34px 0 10px;
  font-size: 22px;
}

.policy-card p + p { margin-top: 12px; }
.updated { margin: 14px 0 28px; }

footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 26px clamp(20px, 5vw, 72px);
  color: var(--muted);
  border-top: 1px solid var(--line);
}

@media (max-width: 820px) {
  nav { gap: 14px; font-size: 14px; }
  .hero { grid-template-columns: 1fr; min-height: auto; }
  .feature-grid { grid-template-columns: 1fr; }
  .privacy-band { display: block; }
  .privacy-band .secondary-button { margin-top: 22px; }
}

@media (max-width: 480px) {
  .site-header { display: block; }
  nav { margin-top: 14px; }
  .summary-grid { grid-template-columns: 1fr; }
  .app-icon-large {
    width: 130px;
    height: 130px;
    border-radius: 30px;
  }
}