/* Light, professional, platform-inspired (no third-party branding) */
:root {
  --bg: #ffffff;
  --card: #ffffff;
  --ink: #0b1220;
  --muted: #6b7280;
  --accent: #16a34a;
  --line: rgba(2,6,23,0.10);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color: var(--ink);
  background: radial-gradient(1200px 600px at 10% -10%, rgba(99, 179, 237, .12), transparent 60%),
             radial-gradient(900px 500px at 90% 0%, rgba(110, 231, 183, .10), transparent 60%),
             linear-gradient(180deg, #f8fbff 0%, #f3f8ff 40%, #ffffff 100%);
}

.container { width: min(1100px, 92vw); margin: 0 auto; }

.site-header { border-bottom: 1px solid var(--line); position: sticky; top: 0; background: rgba(255,255,255,.9); backdrop-filter: saturate(140%) blur(6px); z-index: 10; }
.header-inner { display: flex; align-items: center; justify-content: space-between; padding: 14px 0; gap: 14px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; }
.brand-mark { width: 28px; height: 28px; border-radius: 8px; background: conic-gradient(from 180deg, #22c55e, #60a5fa, #22c55e); }
.header-right { display: flex; align-items: center; gap: 12px; }
.support a { color: var(--ink); }

.hero { position: relative; padding: 24px 0 6px; }
.hero-img { width: 100%; height: 220px; object-fit: cover; border-radius: 16px; border: 1px solid var(--line); box-shadow: 0 10px 30px rgba(2,6,23,.08); }
.hero-content { margin-top: 14px; }
h1 { margin: 0 0 6px; font-size: 28px; }
.subtitle { margin: 0; color: var(--muted); }

.pill-row { margin-top: 10px; display: flex; flex-wrap: wrap; gap: 8px; }
.pill { font-size: 12px; color: var(--muted); border: 1px solid var(--line); padding: 6px 10px; border-radius: 999px; background: rgba(2,6,23,.03); }

.grid { display: grid; grid-template-columns: 1.2fr .8fr .8fr; gap: 14px; }
@media (max-width: 900px) { .grid { grid-template-columns: 1fr; } }

.card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 16px; box-shadow: 0 1px 0 rgba(2,6,23,.04) inset, 0 6px 18px rgba(15, 23, 42, 0.06); }
.card.stretch { grid-column: 1 / -1; }

h2 { margin: 0 0 12px; font-size: 18px; }
h3 { margin: 0 0 8px; font-size: 18px; }

.row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
@media (max-width: 700px) { .row { grid-template-columns: 1fr 1fr; } }

.field { display: grid; gap: 6px; }
label { font-size: 12px; color: var(--muted); }
input, select { background: #fff; border: 1px solid var(--line); color: var(--ink); border-radius: 10px; padding: 10px 12px; font-size: 14px; }
output { display: inline-block; padding: 10px 12px; border: 1px dashed var(--line); border-radius: 10px; min-width: 110px; background: #fff; }

.radio { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.bank-box { border: 1px solid var(--line); border-radius: 12px; padding: 12px; background: rgba(2,6,23,.02); }
.bank-row { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 8px; }
.bank-title { font-weight: 600; }
.bank-note { color: var(--muted); font-size: 12px; }
.kv { display: grid; grid-template-columns: 200px 1fr auto; gap: 12px; align-items: center; padding: 8px 0; border-top: 1px dashed var(--line); }
.kv:first-of-type { border-top: 0; }
.kv.wide { grid-template-columns: 200px 1fr auto; }
code { background: rgba(2,6,23,.03); padding: 6px 8px; border-radius: 8px; border: 1px solid var(--line); }

.osko-info { display:flex; align-items:flex-start; gap:10px; margin-top:12px; padding:12px; border:1px solid var(--line); border-radius:12px; background:linear-gradient(135deg, rgba(34,197,94,.08), rgba(59,130,246,.08)); }
.osko-badge { flex-shrink:0; background:conic-gradient(from 180deg, #22c55e, #60a5fa, #22c55e); color:#fff; font-weight:700; font-size:12px; display:flex; align-items:center; justify-content:center; width:40px; height:40px; border-radius:50%; box-shadow:0 2px 6px rgba(0,0,0,.15); }
.osko-text { font-size:13px; line-height:1.4; }

.terms { display: flex; gap: 10px; margin-top: 12px; align-items: flex-start; }
.fine-print { color: var(--muted); font-size: 12px; }

.btn { appearance: none; border: 1px solid var(--line); background: #fff; color: var(--ink); padding: 10px 14px; border-radius: 10px; cursor: pointer; font-weight: 600; }
.btn:hover { filter: brightness(1.03); }
.btn.primary { background: linear-gradient(135deg, rgba(34,197,94,.18), rgba(59,130,246,.12)); border-color: rgba(2,6,23,.15); }
.btn.ghost { background: transparent; }
.btn.small { padding: 6px 10px; font-size: 12px; }
.btn.tiny { padding: 4px 8px; font-size: 12px; }
.btn.full { width: 100%; margin-top: 8px; }

.site-footer { border-top: 1px solid var(--line); margin-top: 20px; color: var(--muted); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; padding: 14px 0 40px; gap: 12px; }
.seller { font-size: 12px; }

dialog { border: none; background: transparent; }
.modal-card { min-width: min(560px, 92vw); background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 16px; }
.modal-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 12px; }
.bank-mini { margin-top: 10px; font-size: 14px; border-top: 1px dashed var(--line); padding-top: 10px; color: var(--muted); }

.proof-preview{margin-top:8px; display:grid; grid-template-columns: repeat(auto-fill, minmax(160px,1fr)); gap:10px;}
.proof-preview .thumb{border:1px solid var(--line); border-radius:10px; padding:8px; background:#fff;}
.proof-preview .thumb img{width:100%; height:120px; object-fit:cover; border-radius:8px;}
.proof-preview .meta{font-size:12px; color: var(--muted); margin-top:6px;}

.osko-modal{ margin-top:10px; padding:10px 12px; border-radius:10px; border:1px solid var(--line); background:linear-gradient(135deg, rgba(34,197,94,.10), rgba(59,130,246,.10)); font-size:13px; }
#payCountdown{{font-weight:700}}
#payCountdown.urgent{color:#dc2626;} /* red-600 */