:root {
  --bg: #0b0c0e;
  --card: #14161a;
  --gold: #c9a227;
  --gold-2: #e6c15a;
  --text: #ece7dc;
  --muted: #9a927f;
  --line: rgba(201, 162, 39, 0.28);
  --red: #e05a5a;
  --green: #3dba7a;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, system-ui, sans-serif;
}

.grain {
  pointer-events: none;
  position: fixed;
  inset: 0;
  background:
    radial-gradient(1200px 500px at 50% -10%, rgba(201, 162, 39, 0.12), transparent 55%),
    repeating-linear-gradient(0deg, transparent 0 2px, rgba(0, 0, 0, 0.18) 3px);
  opacity: 0.55;
  z-index: 0;
}

.nav,
main,
footer {
  position: relative;
  z-index: 1;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 20px;
  border-bottom: 1px solid var(--line);
  background: rgba(11, 12, 14, 0.92);
  position: sticky;
  top: 0;
}

.brand img {
  height: 52px;
  width: auto;
  display: block;
}

nav {
  display: flex;
  gap: 14px;
  align-items: center;
}

nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 13px;
  font-weight: 600;
}

nav a.ghost {
  border: 1px solid var(--line);
  padding: 8px 10px;
  color: var(--gold-2);
}

.hero,
.panel {
  max-width: 920px;
  margin: 0 auto;
  padding: 56px 20px 24px;
}

.kicker {
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-size: 11px;
  color: var(--gold);
  font-weight: 700;
}

h1,
h2,
h3 {
  font-family: Cinzel, serif;
  font-weight: 600;
  margin: 10px 0;
}

h1 {
  font-size: clamp(32px, 6vw, 58px);
  line-height: 1.05;
}

h2 {
  font-size: clamp(26px, 4vw, 38px);
}

.lede {
  color: var(--muted);
  max-width: 640px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  cursor: pointer;
  text-decoration: none;
  font-weight: 700;
  font-size: 14px;
  padding: 12px 16px;
  min-width: 160px;
}

.btn.gold {
  background: linear-gradient(180deg, var(--gold-2), var(--gold));
  color: #16120a;
}

.btn.dark {
  background: #1b1e24;
  color: var(--text);
  border: 1px solid var(--line);
}

.stats {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
  max-width: 920px;
  margin: 12px auto 0;
  padding: 0 20px 40px;
}

.stats div {
  border: 1px solid var(--line);
  background: var(--card);
  padding: 14px 10px;
  text-align: center;
}

.stats span {
  display: block;
  font-size: 10px;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.stats strong {
  display: block;
  margin-top: 6px;
  color: var(--gold-2);
  font-size: 13px;
}

.steps {
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.steps li {
  border: 1px solid var(--line);
  background: var(--card);
  padding: 12px 14px;
}

.app-panel {
  padding-bottom: 72px;
}

.hint {
  color: var(--muted);
  font-size: 13px;
}

footer {
  border-top: 1px solid var(--line);
  padding: 24px 20px 40px;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
}

footer a {
  color: var(--gold-2);
}

.modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.72);
  display: grid;
  place-items: center;
  z-index: 20;
  padding: 16px;
}

.modal[hidden] {
  display: none;
}

.sheet {
  width: min(440px, 100%);
  background: #121418;
  border: 1px solid var(--line);
  padding: 22px;
  position: relative;
}

.close {
  position: absolute;
  right: 10px;
  top: 8px;
  background: none;
  border: 0;
  color: var(--muted);
  font-size: 28px;
  cursor: pointer;
}

label {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin-top: 10px;
}

input {
  width: 100%;
  margin-top: 6px;
  padding: 10px;
  background: #0b0c0e;
  border: 1px solid #2a2e36;
  color: var(--text);
}

.err {
  color: var(--red);
  font-size: 12px;
  min-height: 16px;
}

.ok {
  color: var(--green);
}

.cx {
  font-size: 28px;
  letter-spacing: 0.08em;
  color: var(--gold-2);
  margin: 8px 0;
}

@media (max-width: 800px) {
  .stats {
    grid-template-columns: 1fr 1fr;
  }
  nav a:not(.ghost) {
    display: none;
  }
  .brand img {
    height: 44px;
  }
}