@import url('https://fonts.googleapis.com/css2?family=Inter:wght@500;650;750;850&display=swap');
:root{
  --bg:#f5f7fb;--card:#ffffff;--text:#101828;--muted:#667085;--line:#e6eaf2;
  --primary:#2563eb;--primary2:#7c3aed;--success:#12b76a;--warn:#f79009;--danger:#f04438;
  --shadow:0 24px 70px rgba(16,24,40,.12);
}
*{box-sizing:border-box}html,body{height:100%}body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial;background:
radial-gradient(circle at 15% 5%,rgba(37,99,235,.18),transparent 30%),
radial-gradient(circle at 85% 20%,rgba(124,58,237,.16),transparent 28%),
var(--bg);color:var(--text)}
button,input,select{font:inherit}.glass{background:rgba(255,255,255,.86);backdrop-filter:blur(22px);border:1px solid rgba(255,255,255,.75);box-shadow:var(--shadow)}
.entry-screen,.flow-screen{min-height:100dvh;display:grid;place-items:center;padding:20px}.entry-card{width:min(500px,100%);border-radius:36px;padding:30px;text-align:center}.logo-dot{width:62px;height:62px;border-radius:22px;background:linear-gradient(135deg,var(--primary),var(--primary2));display:grid;place-items:center;color:#fff;font-size:32px;font-weight:900;margin:0 auto 18px}
.eyebrow{text-transform:uppercase;letter-spacing:.14em;color:var(--primary);font-size:12px;font-weight:850;margin:0 0 8px}.entry-card h1,.flow-card h1{font-size:clamp(32px,7vw,58px);line-height:1.02;margin:0 0 12px;letter-spacing:-.05em}.subtitle,.lead{color:var(--muted);font-size:18px;line-height:1.55;margin:0 auto 24px;max-width:620px}
.entry-form{display:grid;gap:16px;margin-top:24px}.segmented{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;background:#eef2ff;padding:8px;border-radius:18px}.segmented input{display:none}.segmented span{display:block;padding:12px;border-radius:14px;color:#475467;font-weight:800;cursor:pointer}.segmented input:checked+span{background:#fff;color:var(--primary);box-shadow:0 8px 20px rgba(37,99,235,.12)}
.code-input,.mega-input,input{border:1px solid var(--line);background:#fff;border-radius:22px;padding:18px 20px;outline:none;width:100%;box-shadow:0 1px 0 rgba(16,24,40,.03)}.code-input{text-align:center;font-size:34px;letter-spacing:.35em;font-weight:850}.mega-input{font-size:clamp(24px,7vw,44px);font-weight:850;text-align:center;min-height:82px}.mega-input.code{letter-spacing:.16em;text-transform:uppercase}
.primary,.success,.soft{border:0;border-radius:22px;padding:17px 22px;font-weight:850;cursor:pointer;transition:.18s transform,.18s filter;text-decoration:none;text-align:center;display:inline-block}.primary{background:linear-gradient(135deg,var(--primary),var(--primary2));color:#fff}.success{background:linear-gradient(135deg,#0e9f6e,var(--success));color:#fff}.soft{background:#eef2ff;color:#344054}.primary:hover,.success:hover,.soft:hover{transform:translateY(-1px);filter:brightness(1.03)}.jumbo{width:100%;font-size:20px;padding:22px}.big{font-size:18px;padding:20px}
.toast,.notice,.safe-note{border-radius:20px;padding:14px 16px;margin:16px 0;font-weight:700}.error{background:#fff1f3;color:#b42318;border:1px solid #fecdd6}.notice,.safe-note{background:#fffaeb;color:#93370d;border:1px solid #fedf89;text-align:left}.safe-note{font-size:14px}
.mini-top,.appbar{position:fixed;top:0;left:0;right:0;z-index:5;display:flex;align-items:center;justify-content:space-between;padding:16px 20px;background:rgba(245,247,251,.78);backdrop-filter:blur(18px);border-bottom:1px solid rgba(230,234,242,.8)}.mini-top b,.appbar b{font-size:18px}.appbar div{display:grid}.appbar small{color:var(--muted)}
.flow-card{width:min(860px,100%);border-radius:44px;padding:clamp(24px,5vw,54px);text-align:center;margin-top:48px;animation:rise .35s ease}.buyer-flow .flow-card{min-height:min(680px,calc(100dvh - 120px));display:flex;flex-direction:column;justify-content:center}.seller-flow .flow-card{min-height:min(700px,calc(100dvh - 120px));display:flex;flex-direction:column;justify-content:center}.step{display:inline-flex;align-items:center;justify-content:center;margin:0 auto 18px;padding:10px 16px;border-radius:999px;background:#eff6ff;color:var(--primary);font-weight:850}.detail-box{background:#f8fafc;border:1px solid var(--line);border-radius:30px;padding:26px;font-size:clamp(28px,8vw,54px);font-weight:850;letter-spacing:-.03em;margin:10px 0 24px;overflow-wrap:anywhere}.detail-box.small{font-size:clamp(22px,5vw,36px)}.detail-box.huge{font-size:clamp(34px,9vw,70px)}
.big-form{display:grid;gap:18px}.two-actions{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:14px 0}.warn-text{color:#b54708}
.loader-ring{width:72px;height:72px;border:7px solid #dbeafe;border-top-color:var(--primary);border-radius:50%;animation:spin 1s linear infinite;margin:0 auto 24px}.loader-dots{display:flex;gap:10px;justify-content:center;margin-bottom:24px}.loader-dots span{width:18px;height:18px;border-radius:50%;background:var(--primary);animation:bounce 1s infinite alternate}.loader-dots span:nth-child(2){animation-delay:.15s}.loader-dots span:nth-child(3){animation-delay:.3s}.success-mark{width:86px;height:86px;border-radius:32px;background:linear-gradient(135deg,#0e9f6e,var(--success));display:grid;place-items:center;color:#fff;font-size:54px;font-weight:900;margin:0 auto 22px}
.mini-timeline{margin-top:24px;border-top:1px solid var(--line);padding-top:16px;text-align:left;color:var(--muted);display:grid;gap:8px}.mini-timeline div{font-size:14px}.mini-timeline b{color:var(--text)}.mini-timeline span{display:block;color:#98a2b3;margin-top:2px}
.slide-box{display:none;gap:10px;background:#f8fafc;border:1px solid var(--line);border-radius:24px;padding:16px;margin-top:12px}.slide-box.show{display:grid}.linkbtn{margin:auto;min-width:220px}
.modal-backdrop{position:fixed;inset:0;background:rgba(16,24,40,.55);backdrop-filter:blur(10px);display:grid;place-items:center;z-index:20;padding:20px}.modal-card{background:#fff;border-radius:34px;padding:32px;width:min(480px,100%);text-align:center;box-shadow:var(--shadow)}.big-code{font-size:56px;font-weight:900;letter-spacing:.14em;background:#f8fafc;border:1px solid var(--line);border-radius:24px;padding:20px;margin:16px 0}
.admin-layout{display:grid;grid-template-columns:360px 1fr;gap:20px;padding:96px 20px 20px}.admin-create,.admin-feed{border-radius:32px;padding:24px}.admin-create h2,.admin-feed h2{margin:0 0 10px;font-size:28px;letter-spacing:-.04em}.session-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:14px}.admin-session{background:#fff;border:1px solid var(--line);border-radius:26px;padding:18px;box-shadow:0 10px 30px rgba(16,24,40,.06)}.admin-session .row{display:flex;justify-content:space-between;gap:10px}.admin-session .row span,.admin-session small{color:var(--muted)}.codes{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:16px 0}.codes div{background:#f8fafc;border:1px solid var(--line);border-radius:18px;padding:12px;color:var(--muted)}.codes strong{display:block;color:var(--text);font-size:28px;letter-spacing:.08em}
@keyframes spin{to{transform:rotate(360deg)}}@keyframes bounce{to{transform:translateY(-12px);opacity:.55}}@keyframes rise{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
@media(max-width:820px){.admin-layout{grid-template-columns:1fr;padding-top:88px}.flow-card{border-radius:30px;padding:24px}.two-actions{grid-template-columns:1fr}.entry-card{border-radius:28px}.code-input{font-size:28px}.mini-top,.appbar{padding:12px 14px}.buyer-flow .flow-card,.seller-flow .flow-card{min-height:calc(100dvh - 110px)}}
.danger{border:0;border-radius:22px;padding:17px 22px;font-weight:850;cursor:pointer;background:#fee4e2;color:#b42318}
.danger:hover{filter:brightness(.98);transform:translateY(-1px)}
.danger-form{margin-top:12px}
.small-danger{width:100%;margin-top:14px;padding:13px 16px;border-radius:18px}