* {
  box-sizing: border-box;
}

:root {
  --black: #050505;
  --charcoal: #0b0b0c;
  --soft-black: #101012;
  --gold: #c99a3d;
  --gold-light: #f2d38a;
  --gold-muted: #a88445;
  --text: #f5f1e8;
  --muted: #a9a39a;
  --line: rgba(242, 211, 138, 0.15);
  --line-soft: rgba(242, 211, 138, 0.08);
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 75% 22%, rgba(201, 154, 61, 0.13), transparent 30%),
    radial-gradient(circle at 18% 18%, rgba(255, 255, 255, 0.035), transparent 28%),
    linear-gradient(180deg, #030303 0%, #080808 48%, #050505 100%);
  min-height: 100vh;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(242, 211, 138, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(242, 211, 138, 0.025) 1px, transparent 1px);
  background-size: 96px 96px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,0.24), transparent 70%);
}

.site {
  width: min(1180px, 92vw);
  margin: 0 auto;
  padding: 30px 0 52px;
  position: relative;
  z-index: 1;
}

.nav {
  height: 82px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  color: var(--text);
}

.brand-mark {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: linear-gradient(145deg, #1a1510, #050505);
  border: 1px solid rgba(242, 211, 138, 0.25);
  color: var(--gold-light);
  font-weight: 900;
  font-size: 24px;
  box-shadow: inset 0 0 18px rgba(201, 154, 61, 0.13);
}

.brand-text {
  letter-spacing: 0.18em;
  font-size: 14px;
  font-weight: 800;
}

.nav-links {
  display: flex;
  gap: 28px;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
}

.nav-action {
  color: var(--text);
  text-decoration: none;
  padding: 13px 20px;
  border-radius: 999px;
  border: 1px solid rgba(242, 211, 138, 0.28);
  background: rgba(201, 154, 61, 0.07);
  font-weight: 800;
}

.hero {
  min-height: calc(100vh - 112px);
  display: grid;
  grid-template-columns: 1.02fr 0.98fr;
  align-items: center;
  gap: 54px;
  padding: 56px 0 76px;
  border-bottom: 1px solid var(--line);
}

.kicker {
  margin: 0 0 18px;
  color: var(--gold-light);
  letter-spacing: 0.24em;
  text-transform: uppercase;
  font-size: 12px;
  font-weight: 900;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 760px;
  margin-bottom: 24px;
  font-size: clamp(46px, 5.8vw, 82px);
  line-height: 0.98;
  letter-spacing: -0.065em;
}

.lead {
  max-width: 660px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin: 34px 0;
}

.primary-action,
.secondary-action {
  min-height: 54px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 24px;
  border-radius: 999px;
  font-weight: 900;
  text-decoration: none;
}

.primary-action {
  background: linear-gradient(135deg, #9f742a, #f2d38a 48%, #b7832e);
  color: #080808;
  box-shadow: 0 18px 44px rgba(201, 154, 61, 0.18);
}

.secondary-action {
  color: var(--text);
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.025);
}

.meta-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.meta-row div {
  padding: 18px 20px 18px 0;
  border-right: 1px solid var(--line-soft);
}

.meta-row div:last-child {
  border-right: 0;
}

.meta-row span,
.result-label {
  display: block;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.meta-row strong {
  display: block;
  margin-top: 8px;
  font-size: 17px;
}

.hero-coin {
  display: flex;
  align-items: center;
  justify-content: center;
}

.coin-frame {
  width: min(100%, 520px);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  position: relative;
}

.coin-frame::before {
  content: "";
  position: absolute;
  width: 78%;
  height: 78%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(201,154,61,0.20), transparent 68%);
  filter: blur(24px);
}

.coin-frame img {
  width: 100%;
  max-width: 500px;
  height: auto;
  position: relative;
  z-index: 1;
  filter: drop-shadow(0 28px 55px rgba(0,0,0,0.55));
}

.statement {
  padding: 44px 0;
  border-bottom: 1px solid var(--line);
}

.statement p {
  width: min(940px, 100%);
  margin: 0;
  font-size: clamp(24px, 3.1vw, 42px);
  line-height: 1.18;
  letter-spacing: -0.04em;
}

.utility-section,
.calculator-section,
.tiers {
  padding: 76px 0;
  border-bottom: 1px solid var(--line);
}

.section-heading,
.calculator-header {
  max-width: 820px;
  margin-bottom: 40px;
}

.section-heading h2,
.calculator-header h2 {
  margin-bottom: 0;
  font-size: clamp(34px, 4.2vw, 60px);
  line-height: 1;
  letter-spacing: -0.055em;
}

.calculator-header p {
  margin-top: 16px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.7;
}

.utility-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border: 1px solid var(--line);
}

.utility-grid article {
  padding: 32px;
  border-right: 1px solid var(--line);
  min-height: 270px;
  background: rgba(255,255,255,0.012);
}

.utility-grid article:last-child {
  border-right: 0;
}

.utility-grid span,
.tier span {
  color: var(--gold-light);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 900;
}

.utility-grid h3 {
  margin: 26px 0 12px;
  font-size: 28px;
  letter-spacing: -0.04em;
}

.utility-grid p,
.tier p,
.footer {
  color: var(--muted);
  line-height: 1.7;
}

.calculator-shell {
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.018);
}

.form-panel,
.result-panel {
  padding: 38px;
}

.form-panel {
  border-right: 1px solid var(--line);
}

label {
  display: block;
  margin: 20px 0 9px;
  font-weight: 900;
}

select,
input {
  width: 100%;
  height: 56px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.025);
  color: var(--text);
  padding: 0 16px;
  font-size: 16px;
  outline: none;
}

select:focus,
input:focus {
  border-color: rgba(242, 211, 138, 0.5);
}

.checkbox {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
  line-height: 1.5;
}

.checkbox input {
  width: auto;
  height: auto;
}

button {
  width: 100%;
  height: 58px;
  margin-top: 24px;
  border: 0;
  background: linear-gradient(135deg, #9f742a, #f2d38a 50%, #b7832e);
  color: #070707;
  font-size: 16px;
  font-weight: 900;
  cursor: pointer;
}

.result-panel {
  min-height: 410px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: linear-gradient(145deg, rgba(201,154,61,0.04), rgba(255,255,255,0.015));
}

.result-panel h2 {
  margin: 14px 0 12px;
  font-size: 42px;
  line-height: 1;
  letter-spacing: -0.05em;
}

.result-panel p {
  color: var(--muted);
  line-height: 1.7;
}

.result-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
  margin-top: 24px;
}

.metric {
  padding: 18px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.metric span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.10em;
  text-transform: uppercase;
}

.metric strong {
  display: block;
  margin-top: 10px;
  font-size: 24px;
}

.tier-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border: 1px solid var(--line);
}

.tier {
  padding: 34px;
  min-height: 220px;
  border-right: 1px solid var(--line);
}

.tier:last-child {
  border-right: 0;
}

.tier strong {
  display: block;
  margin: 24px 0 12px;
  font-size: 38px;
  letter-spacing: -0.05em;
}

.tier.highlighted {
  background: linear-gradient(180deg, rgba(201,154,61,0.07), rgba(255,255,255,0.012));
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 22px;
  padding-top: 28px;
  font-size: 14px;
}

.footer p:last-child {
  text-align: right;
}

@media (max-width: 960px) {
  .hero,
  .calculator-shell,
  .utility-grid,
  .tier-grid {
    grid-template-columns: 1fr;
  }

  .form-panel,
  .utility-grid article,
  .tier {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .utility-grid article:last-child,
  .tier:last-child {
    border-bottom: 0;
  }

  .nav-links {
    display: none;
  }

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

  .meta-row div {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .footer {
    flex-direction: column;
  }

  .footer p:last-child {
    text-align: left;
  }
}

@media (max-width: 640px) {
  .site {
    width: 94vw;
    padding-top: 18px;
  }

  .brand-text {
    font-size: 12px;
  }

  .nav-action {
    display: none;
  }

  h1 {
    font-size: 44px;
  }

  .coin-frame {
    width: min(100%, 360px);
  }

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