:root{
  --brand:#7A1420; --brand-d:#5E0F1A; --brand-l:#9A2230;
  --gold:#C9A227; --green:#1C7A5A; --amber:#C58A00;
  --ink:#1B2230; --mut:#6B7385; --line:#E7E9EF; --bg:#F4F5F7; --card:#FFFFFF;
  --radius:16px;
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--ink);line-height:1.55;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.muted{color:var(--mut)}
.wrap{max-width:1120px;margin:0 auto;padding:0 18px}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;cursor:pointer;font-weight:700;font-size:15px;
  padding:13px 20px;border-radius:12px;background:var(--brand);color:#fff;transition:.15s;min-height:46px}
.btn:hover{filter:brightness(1.07)}
.btn.block{width:100%}
.btn.lg{font-size:17px;padding:16px;min-height:54px}
.btn.ghost{background:#fff;color:var(--brand);border:1.5px solid var(--line)}
.btn.gold{background:var(--gold);color:#3a2e00}
.btn.green{background:var(--green)}
.btn.sm{font-size:13px;padding:8px 14px;min-height:38px;border-radius:10px}
.btn[disabled]{opacity:.5;cursor:not-allowed}
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:12px}
.field label{font-size:13px;font-weight:600;color:var(--mut)}
input,select,textarea{width:100%;padding:12px 14px;border:1.5px solid var(--line);border-radius:11px;font-size:16px;font-family:inherit;background:#fff;color:var(--ink);outline:none}
input:focus,select:focus,textarea:focus{border-color:var(--brand)}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px}

/* ===================== CUSTOMER (mobile) ===================== */
.cust{max-width:460px;margin:0 auto;min-height:100vh;background:var(--bg)}
.cust-hero{background:linear-gradient(160deg,var(--brand),var(--brand-d));color:#fff;padding:30px 22px 26px;border-radius:0 0 26px 26px;text-align:center}
.cust-hero .logo{width:60px;height:60px;border-radius:16px;background:rgba(255,255,255,.14);display:grid;place-items:center;margin:0 auto 12px;font-size:28px}
.cust-hero h1{font-size:22px;font-weight:800}
.cust-hero p{color:rgba(255,255,255,.85);font-size:14px;margin-top:4px}
.cust-body{padding:18px}
.cc{background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px;margin-bottom:14px}
.cc h2{font-size:17px;margin-bottom:4px}
.stamp-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:18px 0}
.stamp{aspect-ratio:1;border-radius:50%;display:grid;place-items:center;font-weight:800;font-size:18px;border:2px dashed #D9A7AD;color:#C98A92;background:#FBF1F2}
.stamp.on{background:linear-gradient(145deg,var(--brand),var(--brand-l));border:2px solid var(--brand);color:#fff;box-shadow:0 6px 14px rgba(122,20,32,.3)}
.progress-txt{text-align:center;font-weight:700;color:var(--brand);margin-bottom:4px}
.reward-line{display:flex;gap:9px;align-items:center;background:#FBF1F2;border:1px solid #F0D7DA;border-radius:12px;padding:12px;font-size:14px;color:var(--brand-d);font-weight:600}
.won-box{background:linear-gradient(135deg,#1C7A5A,#14624a);color:#fff;border-radius:16px;padding:22px;text-align:center}
.won-box .code{font-size:30px;font-weight:800;letter-spacing:3px;background:rgba(255,255,255,.16);border-radius:12px;padding:10px;margin:12px 0}
.app-tiles{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.app-tile{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px;text-align:center}
.app-tile .ic{width:48px;height:48px;border-radius:14px;display:grid;place-items:center;margin:0 auto 8px;color:#fff;font-size:22px}
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);background:var(--ink);color:#fff;padding:12px 18px;border-radius:12px;font-weight:600;z-index:50;opacity:0;transition:.25s;max-width:92%;text-align:center}
.toast.show{opacity:1}

/* ===================== ADMIN ===================== */
.topbar{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:30}
.topbar-in{display:flex;align-items:center;justify-content:space-between;height:60px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;color:var(--brand)}
.brand .dot{width:34px;height:34px;border-radius:10px;background:var(--brand);color:#fff;display:grid;place-items:center;font-size:18px}
.topnav{display:flex;gap:4px}
.topnav a{padding:8px 13px;border-radius:9px;font-weight:600;font-size:14px;color:var(--mut)}
.topnav a.cur{background:#FBF1F2;color:var(--brand)}
.page{padding:20px 0 90px}
h1.pt{font-size:24px;margin-bottom:2px}
.sub{color:var(--mut);margin-bottom:18px}

/* KPI strip */
.kpi-strip{background:linear-gradient(135deg,var(--brand),var(--brand-d));border-radius:20px;padding:18px;display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-bottom:18px}
.kpi{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);border-radius:14px;padding:16px 10px;text-align:center;color:#fff}
.kpi .ic{font-size:17px;opacity:.9}
.kpi .n{font-size:26px;font-weight:800;margin:3px 0 1px}
.kpi .l{font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;color:rgba(255,255,255,.8)}

.grid2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.sec-h{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.sec-h h2{font-size:18px}
.chart-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px}
.chart-card h3{font-size:16px}.chart-card .cap{font-size:12.5px;color:var(--mut);margin-bottom:10px}

.rp{display:flex;gap:14px;align-items:center;background:#FBF1F2;border:1px solid #F0D7DA;border-radius:14px;padding:16px}
.rp .gift{width:46px;height:46px;border-radius:12px;background:#F3D9DC;color:var(--brand);display:grid;place-items:center;font-size:22px;flex:none}
.rp b{color:var(--ink)}
.rp .meta{display:flex;gap:16px;font-size:13px;color:var(--mut);margin-top:3px}

.act{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.act .box{border-radius:14px;padding:22px;text-align:center}
.act .box.g{background:#EDFBF4;border:1px solid #CDEBDD}
.act .box.y{background:#FFFBEB;border:1px solid #F3E6B8}
.act .box .n{font-size:30px;font-weight:800}
.act .box.g .n{color:var(--green)} .act .box.y .n{color:var(--amber)}
.act .box .l{font-size:13px;color:var(--mut);margin-top:2px}

/* tables */
.tablewrap{overflow:auto;border:1px solid var(--line);border-radius:14px;background:#fff}
table{width:100%;border-collapse:collapse;font-size:14px}
th{background:#FAFAFB;text-align:left;padding:11px 14px;font-size:12.5px;color:var(--mut);text-transform:uppercase;letter-spacing:.05em;white-space:nowrap}
td{padding:12px 14px;border-top:1px solid var(--line)}
.pill{display:inline-block;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:700}
.pill.g{background:#E6F6EE;color:#13693f}.pill.y{background:#FFF4D6;color:#8a6200}.pill.r{background:#FBE7E9;color:#a01722}.pill.b{background:#E8EEFB;color:#2847a0}

.toolbar{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-bottom:14px}
.tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px}
.tabs a{padding:7px 14px;border-radius:999px;background:#fff;border:1px solid var(--line);font-weight:600;font-size:13.5px;color:var(--mut)}
.tabs a.cur{background:var(--brand);color:#fff;border-color:var(--brand)}
.empty{text-align:center;padding:44px 20px;color:var(--mut)}
.empty .ic{font-size:40px;opacity:.5;margin-bottom:8px}

/* Create-offer app picker */
.apps{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;max-width:620px;margin:0 auto}
.app-pick{text-align:center;cursor:pointer}
.app-pick .circle{width:78px;height:78px;border-radius:50%;display:grid;place-items:center;margin:0 auto 10px;color:#fff;font-size:30px}
.app-pick b{display:block;font-size:15px}
.app-pick span{font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--mut)}
.protip{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px;display:flex;gap:12px;max-width:560px;margin:22px auto 0}
.protip .i{width:34px;height:34px;border-radius:50%;border:1px solid var(--line);display:grid;place-items:center;flex:none}

/* bottom nav (mobile admin) */
.botnav{position:fixed;left:0;right:0;bottom:0;background:#fff;border-top:1px solid var(--line);display:none;justify-content:space-around;padding:8px 0 10px;z-index:40}
.botnav a{display:flex;flex-direction:column;align-items:center;gap:3px;font-size:11px;color:var(--mut);font-weight:600}
.botnav a.cur{color:var(--brand)}
.botnav a .bi{font-size:20px}

@media(max-width:820px){
  .topnav{display:none}
  .botnav{display:flex}
  .grid2{grid-template-columns:1fr}
  .apps{grid-template-columns:1fr}
}
@media(max-width:480px){
  .kpi-strip{grid-template-columns:repeat(2,1fr)}
  .kpi .n{font-size:22px}
}