/* Chain Gifts — dark, mint-and-gold theme. Self-contained, no framework. */
:root {
  --bg-0: #0a0d11;
  --bg-1: #11161c;
  --bg-2: #19212a;
  --bg-3: #232f3b;
  --fg-0: #e9eef3;
  --fg-1: #a9b4c0;
  --fg-2: #6d7884;
  --mint: #ef4444;
  --mint-dim: #b91c1c;
  --accent: #f4c47a;
  --danger: #ff6b6b;
  --warn: #ffcc66;
  --border: #1f2c38;
  --radius: 12px;
  --maxw: 1140px;
}
* { box-sizing: border-box; }
html, body { margin:0; padding:0; background: var(--bg-0); color: var(--fg-0);
  font-family: ui-sans-serif, system-ui, -apple-system, "Inter", "Segoe UI", Roboto, sans-serif;
  font-size:16px; line-height:1.55; -webkit-font-smoothing: antialiased; }
a { color: var(--mint); text-decoration: none; }
a:hover { text-decoration: underline; }
code { font-family: ui-monospace, Menlo, monospace; background: var(--bg-2); padding: 1px 6px; border-radius: 6px; }
.muted { color: var(--fg-2); }
.small { font-size: 12px; }
.accent { color: var(--accent); }
.gold { color: var(--accent); }
.warn { color: var(--warn); }
.ok { color: var(--mint); }
.pos { color: var(--mint); }
.neg { color: var(--danger); }
.inline { display: inline; }
.mt { margin-top: 1rem; }
.grad { background: linear-gradient(90deg, var(--mint), var(--accent));
  -webkit-background-clip: text; background-clip: text; color: transparent; }

.container { max-width: var(--maxw); margin: 0 auto; padding: 24px 18px 60px; }
.nav { max-width: var(--maxw); margin: 0 auto; padding: 14px 18px;
  display:flex; align-items:center; gap:18px; flex-wrap:wrap; border-bottom: 1px solid var(--border); }
.brand { display:flex; align-items:center; gap:8px; font-weight:700; font-size:20px; color: var(--fg-0); }
.brand-mark { color: var(--mint); font-size:22px; text-shadow: 0 0 12px rgba(108,224,184,.6); }
.brand-text { display:inline-flex; flex-direction:column; line-height:1.05; }
.brand-tagline { font-size:10px; font-weight:500; letter-spacing:.06em; text-transform:uppercase; color: var(--fg-2); margin-top:1px; }
.brand.small { font-size:16px; }
.nav-links { display:flex; gap:16px; margin-left:8px; flex-wrap:wrap; }
.nav-links a { color: var(--fg-1); }
.nav-links a.active, .nav-links a:hover { color: var(--mint); text-decoration:none; }
.nav-auth { margin-left:auto; display:flex; gap:8px; align-items:center; flex-wrap:wrap; }

.btn { display:inline-flex; align-items:center; justify-content:center; gap:8px;
  padding:10px 16px; border-radius:10px; border:1px solid var(--border); background: var(--bg-2);
  color: var(--fg-0); cursor:pointer; font-weight:600; font-size:14px;
  transition: transform .08s ease, background .15s ease, border-color .15s ease; }
.btn:hover { border-color: var(--mint-dim); text-decoration:none; }
.btn:active { transform: translateY(1px); }
.btn-primary { background: linear-gradient(135deg, var(--mint), var(--mint-dim)); color: #fff5f5; border: none; }
.btn-primary:hover { filter: brightness(1.05); }
.btn-ghost { background: transparent; }
.btn-xl { padding: 14px 22px; font-size: 16px; }
.btn[disabled] { opacity:.5; cursor:not-allowed; }
.btn.small { padding: 4px 10px; font-size: 12px; }

.flash { max-width: var(--maxw); margin: 12px auto 0; padding: 10px 14px; border-radius:10px;
  border:1px solid var(--border); background: var(--bg-2); }
.flash-success { border-color: var(--mint-dim); background: rgba(108,224,184,.06); }
.flash-error   { border-color: var(--danger); background: rgba(255,107,107,.06); }
.flash-info    { border-color: var(--accent); background: rgba(244,196,122,.06); }
.inline-flash { margin: 16px 0; }

.hero { padding: 48px 0 24px; }
.hero-sm { padding: 24px 0 8px; }
.hero-inner { position: relative; }
.eyebrow { display:inline-flex; align-items:center; padding:4px 10px; border-radius:999px;
  border:1px solid var(--border); background: var(--bg-2); color: var(--fg-1); font-size:12px; }
.dot { display:inline-block; width:8px; height:8px; border-radius:50%; margin-right:6px; }
.dot-green { background: var(--mint); box-shadow: 0 0 8px var(--mint); }
h1 { font-size: clamp(28px, 4.6vw, 48px); line-height:1.1; margin:14px 0 12px; letter-spacing:-.02em; }
h2 { font-size: clamp(20px, 2.4vw, 26px); margin: 32px 0 14px; letter-spacing:-.01em; }
h3 { font-size: 18px; margin: 14px 0 8px; }
h4 { margin: 0 0 8px 0; font-size: 14px; color: var(--fg-1); text-transform: uppercase; letter-spacing: .05em; }
.lede { font-size: 18px; color: var(--fg-1); max-width: 720px; }
.hero-cta { display:flex; gap:10px; flex-wrap:wrap; margin: 18px 0 22px; }

.steps, .trust { display:grid; grid-template-columns:repeat(auto-fit, minmax(220px,1fr)); gap:14px; }
.step, .trust-item, .stat, .nav-card, .queue-card { background: var(--bg-1); border:1px solid var(--border);
  border-radius: var(--radius); padding: 18px; }
.step .num { width:32px; height:32px; border-radius:50%; background: var(--bg-3); color: var(--accent);
  display:inline-flex; align-items:center; justify-content:center; font-weight:800; margin-bottom:8px; }

.chip-row { display:flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.chip { padding: 6px 12px; border-radius: 999px; border: 1px solid var(--border); background: var(--bg-2); font-weight: 700; }

.stats-grid { display:grid; grid-template-columns:repeat(auto-fit, minmax(200px, 1fr)); gap:12px; margin: 8px 0 24px; }
.stat-label { color: var(--fg-2); font-size: 12px; text-transform: uppercase; letter-spacing: .05em; }
.stat-value { font-size: 28px; font-weight: 800; margin-top: 4px; }

.nav-grid { display:grid; grid-template-columns:repeat(auto-fit, minmax(220px, 1fr)); gap:10px; }
.nav-card { display:flex; justify-content:space-between; align-items:center; color: var(--fg-0); }
.nav-card:hover { border-color: var(--mint-dim); text-decoration:none; }

.tbl { width: 100%; border-collapse: collapse; margin: 12px 0; background: var(--bg-1);
  border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.tbl th, .tbl td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--border); font-size: 14px; }
.tbl tbody tr:last-child td { border-bottom: none; }
.tbl thead { background: var(--bg-2); }
.tbl.small td, .tbl.small th { padding: 6px 8px; font-size: 12px; }

.badge { display:inline-block; padding:2px 8px; border-radius:999px; font-size:12px; font-weight:700;
  border: 1px solid var(--border); background: var(--bg-2); }
.badge-ok { color: var(--mint); border-color: var(--mint-dim); background: rgba(108,224,184,.08); }
.badge-warn { color: var(--warn); border-color: #6a5520; background: rgba(255,204,102,.08); }
.badge-info { color: var(--accent); border-color: #6a5520; background: rgba(244,196,122,.08); }
.badge-danger { color: var(--danger); border-color: #6a2424; background: rgba(255,107,107,.08); }

.card-page { background: var(--bg-1); border:1px solid var(--border); border-radius: var(--radius);
  padding: 24px; max-width: 640px; margin: 24px auto; }
.card-page.prose p { color: var(--fg-1); }
.form { display:flex; flex-direction:column; gap:12px; }
.form label { display:flex; flex-direction:column; gap:4px; font-size:14px; color: var(--fg-1); }
.form input, .form select, .form textarea { padding: 10px 12px; border-radius: 8px;
  border: 1px solid var(--border); background: var(--bg-2); color: var(--fg-0); font-size: 14px; font-family: inherit; }
.form input:focus, .form select:focus, .form textarea:focus { outline: 2px solid var(--mint-dim); }
.form-row { flex-direction: row; flex-wrap: wrap; align-items: flex-end; gap: 12px; }
.form-row label { flex: 1 1 140px; }
.form .row { display:flex; gap:8px; flex-wrap:wrap; }

.store-grid { display:flex; flex-direction:column; gap: 24px; margin-top: 16px; }
.brand-block h2 { margin-top: 0; }
.denom-grid { display:grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 10px; }
.denom-card { background: var(--bg-1); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 12px; text-align: center; }
.denom-face { font-size: 22px; font-weight: 800; color: var(--accent); margin-bottom: 6px; }
.denom-card .qty { display:flex; flex-direction:column; gap: 4px; font-size: 12px; color: var(--fg-1); }
.denom-card input[type=number] { width: 100%; }
.store-cta { display:flex; justify-content: flex-end; }

.review .receipt { width: 100%; max-width: 460px; margin-left: auto; }
.receipt { width: 100%; margin: 12px 0; border-collapse: collapse; }
.receipt td { padding: 8px 4px; border-bottom: 1px dashed var(--border); }
.receipt .total td { border-top: 2px solid var(--border); font-size: 18px; padding-top: 12px; }

.balance-pill { display:inline-block; padding: 8px 16px; border-radius: 999px;
  border: 1px solid var(--border); background: var(--bg-2); margin-top: 8px; }

.pay-grid { display:grid; grid-template-columns: 280px 1fr; gap: 24px; align-items: start; margin: 16px 0; }
.pay-qr img { background: white; padding: 8px; border-radius: 12px; }
.pay-detail .row { display:flex; justify-content: space-between; align-items: flex-start; padding: 10px 0;
  border-bottom: 1px dashed var(--border); gap: 12px; flex-wrap: wrap; }
.pay-detail label { color: var(--fg-2); font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
.pay-detail .val { font-weight: 600; }
.pay-detail .mono { font-family: ui-monospace, Menlo, monospace; }
.pay-detail .break { word-break: break-all; }
.copy { background: var(--bg-3); border: 1px solid var(--border); color: var(--fg-0); border-radius: 6px; cursor: pointer; }
.copy.small { padding: 2px 8px; font-size: 11px; margin-left: 8px; }

.code-card { background: var(--bg-1); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 14px 16px; margin: 8px 0; }
.code-brand { font-weight: 700; color: var(--accent); margin-bottom: 6px; }
.code-row { display:flex; justify-content: space-between; padding: 4px 0; border-bottom: 1px dashed var(--border); }
.code-row:last-child { border-bottom: none; }

.queue-card { margin: 12px 0; }
.queue-head { font-size: 16px; margin-bottom: 8px; }
.queue-body { display:flex; flex-direction: column; gap: 12px; }
.queue-actions { display:flex; gap:8px; justify-content: flex-end; }

.footer { background: var(--bg-1); border-top: 1px solid var(--border); padding: 28px 18px; margin-top: 40px; }
.footer-grid { max-width: var(--maxw); margin: 0 auto; display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 18px; }
.footer-grid a { display: block; color: var(--fg-1); padding: 4px 0; }
.footer-bottom { max-width: var(--maxw); margin: 16px auto 0; color: var(--fg-2); font-size: 12px; text-align: center; }

@media (max-width: 700px) {
  .pay-grid { grid-template-columns: 1fr; }
}