:root{
  --green:#2bb34a;
  --green-dark:#178632;
  --green-soft:#eaf8ee;
  --navy:#0e2544;
  --text:#152033;
  --muted:#6f7a8a;
  --bg:#f6f8fb;
  --card:#ffffff;
  --border:#e7ebf0;
  --shadow:0 10px 30px rgba(19,42,72,.08);
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--text)}
button,input,select,textarea{font:inherit}
a{color:inherit}
.app-shell{max-width:520px;margin:0 auto;min-height:100vh;background:var(--bg);padding-bottom:88px}
.topbar{position:sticky;top:0;z-index:10;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);display:flex;align-items:center;justify-content:space-between;padding:16px 18px;border-bottom:1px solid var(--border)}
.brand{font-size:28px;font-weight:800;letter-spacing:-1px}.brand .green{color:var(--green)}
.icon-btn{border:0;background:#fff;width:40px;height:40px;border-radius:12px;box-shadow:var(--shadow);cursor:pointer}
.content{padding:16px}
.card{background:var(--card);border:1px solid var(--border);border-radius:20px;padding:18px;box-shadow:var(--shadow);margin-bottom:14px}
.hero{background:linear-gradient(135deg,#5fd76f,#1ba63b);color:#fff;overflow:hidden}
.hero h2{font-size:28px;line-height:1.05;margin:0 0 10px}.hero p{opacity:.96}
.btn{border:0;border-radius:14px;padding:13px 16px;font-weight:700;cursor:pointer}
.btn-primary{background:var(--navy);color:#fff}.btn-green{background:var(--green);color:#fff}.btn-soft{background:var(--green-soft);color:var(--green-dark)}
.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.offer{background:#fff;border:1px solid var(--border);border-radius:18px;padding:14px;min-height:150px}
.offer-logo{width:48px;height:48px;border-radius:12px;background:#f1f4f7;display:grid;place-items:center;font-weight:800;margin-bottom:12px;overflow:hidden}
.offer-logo img{width:100%;height:100%;object-fit:contain}
.badge{display:inline-block;background:var(--green-soft);color:var(--green-dark);border-radius:999px;padding:5px 9px;font-weight:800;font-size:12px}
.section-title{display:flex;justify-content:space-between;align-items:center;margin:18px 2px 10px}.section-title h3{margin:0;font-size:19px}
.categories{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.category{background:#fff;border:1px solid var(--border);border-radius:16px;padding:14px 8px;text-align:center;font-size:13px}
.bottomnav{position:fixed;bottom:0;left:50%;transform:translateX(-50%);width:min(520px,100%);background:#fff;border-top:1px solid var(--border);display:grid;grid-template-columns:repeat(5,1fr);padding:8px 6px max(8px,env(safe-area-inset-bottom));z-index:20}
.navitem{border:0;background:none;padding:7px 4px;font-size:11px;color:var(--muted);cursor:pointer}.navitem.active{color:var(--green-dark);font-weight:800}
.login-wrap{min-height:100vh;display:grid;place-items:center;padding:24px;background:linear-gradient(180deg,#f6fff8,#f6f8fb)}
.login-card{width:min(430px,100%);background:#fff;border-radius:24px;padding:24px;border:1px solid var(--border);box-shadow:var(--shadow)}
.login-card h1{font-size:32px;margin:0 0 6px}.input{width:100%;padding:14px 15px;border:1px solid var(--border);border-radius:14px;margin-top:8px;background:#fff}
label{display:block;font-weight:700;margin-top:14px}
.small{font-size:12px;color:var(--muted)}
.pass-card{text-align:center}
.qr{width:190px;height:190px;margin:18px auto;background:
  linear-gradient(90deg,#111 12px,transparent 12px) 0 0/36px 36px,
  linear-gradient(#111 12px,transparent 12px) 0 0/36px 36px,
  #fff;
  border:12px solid #fff;outline:1px solid var(--border);border-radius:16px}
.admin-table{width:100%;border-collapse:collapse;font-size:13px}.admin-table th,.admin-table td{padding:10px 8px;border-bottom:1px solid var(--border);text-align:left}
.notice{background:#fff8df;border:1px solid #f4d980;color:#795e00;padding:12px 14px;border-radius:14px;margin-bottom:14px}
.success{background:#ebfaef;border:1px solid #bce8c7;color:#176a2a;padding:12px 14px;border-radius:14px;margin-bottom:14px}
.hidden{display:none!important}