:root{
  --ink:#0F1B3D; --ink2:#46506B; --ink3:#7A839C;
  --blue:#0052F8; --blue-deep:#003BB8; --sky:#E9F0FF;
  --line:#D9E1F2; --line2:#EDF1F8; --bg:#F5F7FC; --paper:#fff;
  --ok:#0B7A4B; --ok-bg:#E5F5EC; --bad:#B42318; --bad-bg:#FDECEA;
  --sans:"IBM Plex Sans KR",system-ui,-apple-system,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,monospace;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.6;word-break:keep-all;min-height:100vh;display:flex;flex-direction:column}
a{color:var(--blue)}
button{font:inherit}
:focus-visible{outline:3px solid #8DB0FF;outline-offset:2px}
.num{font-family:var(--mono);font-variant-numeric:tabular-nums}

/* top bar */
.top{position:sticky;top:0;z-index:5;background:rgba(245,247,252,.92);backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line)}
.bar{max-width:640px;margin:0 auto;padding:0 18px;height:56px;display:flex;align-items:center;justify-content:space-between}
.brand{font-weight:700;font-size:1.08rem;color:var(--ink);text-decoration:none;display:inline-flex;align-items:center;gap:6px;letter-spacing:-.01em}
.brand-dot{width:7px;height:7px;border-radius:50%;background:var(--blue)}
.nav{display:flex;gap:4px}
.nav a{color:var(--ink2);text-decoration:none;font-weight:500;padding:8px 12px;border-radius:10px}
.nav a[aria-current="page"]{color:var(--ink);background:var(--paper);box-shadow:inset 0 0 0 1px var(--line)}

main{flex:1;width:100%;max-width:640px;margin:0 auto;padding:22px 18px 40px}
main:focus{outline:none}
.foot{max-width:640px;margin:0 auto;padding:22px 18px 36px;color:var(--ink3);font-size:.82rem;border-top:1px solid var(--line);width:100%}
.foot p{margin:0 0 6px}
.foot a{color:var(--ink2)}

h1{font-size:1.55rem;line-height:1.3;letter-spacing:-.02em;margin:0}
.lead{color:var(--ink2);margin:8px 0 0}

/* stores */
.filters{margin-top:20px;display:flex;gap:6px;overflow-x:auto;scrollbar-width:none;padding-bottom:2px}
.filters::-webkit-scrollbar{display:none}
.chip{flex:none;border:1px solid var(--line);background:var(--paper);color:var(--ink2);border-radius:999px;padding:7px 14px;font-weight:500;cursor:pointer}
.chip[aria-pressed="true"]{background:var(--ink);border-color:var(--ink);color:#fff}
.search{margin-top:12px;width:100%;border:1px solid var(--line);background:var(--paper);border-radius:12px;padding:12px 14px;font:inherit;color:var(--ink)}
.search::placeholder{color:var(--ink3)}
.stores{list-style:none;margin:16px 0 0;padding:0;background:var(--paper);border:1px solid var(--line);border-radius:14px;overflow:hidden}
.store{display:grid;grid-template-columns:40px 1fr auto;gap:12px;align-items:center;padding:14px 16px;text-decoration:none;color:inherit}
.stores li+li .store{border-top:1px solid var(--line2)}
.store:hover{background:#FAFBFE}
.mono-mark{width:40px;height:40px;border-radius:10px;background:var(--sky);color:var(--blue-deep);font-weight:700;display:flex;align-items:center;justify-content:center;font-size:1.02rem}
.store-name{display:block;font-weight:700;line-height:1.35}
.store-rule{display:block;color:var(--ink3);font-size:.84rem;line-height:1.4;margin-top:2px}
.store-rate{text-align:right;white-space:nowrap}
.store-rate b{display:block;font-family:var(--mono);font-weight:600;color:var(--blue);font-size:1.08rem}
.store-rate small{color:var(--ink3);font-size:.76rem}
.empty{padding:28px 18px;text-align:center;color:var(--ink2)}
.note{margin-top:14px;color:var(--ink3);font-size:.84rem}

/* receipt (go + wallet) */
.receipt{position:relative;background:var(--paper);border:1px solid var(--line);border-bottom:none;border-radius:8px 8px 0 0;padding:24px 22px 28px;margin-bottom:16px;box-shadow:0 24px 50px -32px rgba(15,27,61,.4)}
.receipt:after{content:"";position:absolute;left:-1px;right:-1px;bottom:-10px;height:10px;
  background:linear-gradient(135deg,var(--paper) 5px,transparent 0) 0 0/16px 10px repeat-x,linear-gradient(225deg,var(--paper) 5px,transparent 0) 0 0/16px 10px repeat-x}
.r-head{display:flex;justify-content:space-between;align-items:baseline;gap:12px;padding-bottom:12px;margin-bottom:12px;border-bottom:1.5px dashed var(--line)}
.r-title{font-weight:700}
.r-sub{color:var(--ink3);font-size:.84rem}
.r-row{display:flex;justify-content:space-between;gap:16px;padding:4px 0}
.r-row>span:first-child{color:var(--ink2)}
.r-total{margin-top:12px;padding-top:14px;border-top:1.5px dashed var(--line)}
.r-label{color:var(--ink2);font-size:.92rem}
.r-amount{display:block;font-family:var(--mono);font-weight:600;font-size:2.4rem;line-height:1.15;letter-spacing:-.02em;color:var(--blue);margin-top:2px}
.meter{margin-top:14px;height:6px;border-radius:6px;background:var(--line2);overflow:hidden}
.meter i{display:block;height:100%;background:var(--blue);border-radius:6px}
.meter-cap{margin-top:6px;color:var(--ink3);font-size:.82rem}

/* go screen */
.go{padding-top:8px}
.go-state{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.25rem;letter-spacing:-.01em}
.pulse{width:12px;height:12px;border-radius:50%;background:var(--blue);box-shadow:0 0 0 0 rgba(0,82,248,.5);animation:pulse 1.4s ease-out infinite}
@keyframes pulse{to{box-shadow:0 0 0 14px rgba(0,82,248,0)}}
.checks{list-style:none;margin:16px 0 0;padding:0}
.checks li{position:relative;padding:8px 0 8px 26px;color:var(--ink2);border-top:1px solid var(--line2)}
.checks li:first-child{border-top:none}
.checks li:before{content:"";position:absolute;left:4px;top:15px;width:10px;height:6px;border-left:2px solid var(--blue);border-bottom:2px solid var(--blue);transform:rotate(-45deg)}
.btn{display:flex;align-items:center;justify-content:center;width:100%;border:0;border-radius:12px;padding:15px 18px;font-weight:700;font-size:1.02rem;text-decoration:none;cursor:pointer}
.btn-main{background:var(--blue);color:#fff}
.btn-main:hover{background:var(--blue-deep)}
.btn-main[disabled]{background:#AFC4F5;cursor:not-allowed}
.btn-line{background:var(--paper);color:var(--ink);box-shadow:inset 0 0 0 1.5px var(--line)}
.stack{display:grid;gap:10px;margin-top:20px}

/* login */
.login{padding-top:18px}
.providers{display:grid;gap:10px;margin-top:26px}
.p-btn{display:flex;align-items:center;justify-content:center;width:100%;border-radius:12px;padding:15px;font-weight:700;font-size:1rem;cursor:pointer;border:0}
.p-kakao{background:#FEE500;color:#191919}
.p-google{background:#fff;color:#1F1F1F;box-shadow:inset 0 0 0 1px #C9CED8}
.p-apple{background:#000;color:#fff}
.msg{margin-top:14px;padding:12px 14px;border-radius:10px;font-size:.92rem}
.msg-bad{background:var(--bad-bg);color:var(--bad)}
.fine{margin-top:18px;color:var(--ink3);font-size:.84rem}

/* wallet lists */
.sec-title{font-size:1.05rem;font-weight:700;margin:30px 0 10px}
.rows{list-style:none;margin:0;padding:0;background:var(--paper);border:1px solid var(--line);border-radius:14px;overflow:hidden}
.rows li{display:grid;grid-template-columns:1fr auto;gap:10px;padding:13px 16px;align-items:center}
.rows li+li{border-top:1px solid var(--line2)}
.rows .t{font-weight:500;line-height:1.35}
.rows .s{color:var(--ink3);font-size:.82rem}
.rows .a{text-align:right;font-family:var(--mono);font-weight:600}
.tag{display:inline-block;font-size:.76rem;font-weight:700;border-radius:6px;padding:1px 7px;margin-top:2px}
.tag-tracked{background:var(--sky);color:var(--blue-deep)}
.tag-confirmed{background:var(--ok-bg);color:var(--ok)}
.tag-cancelled{background:var(--bad-bg);color:var(--bad)}
.me-meta{display:flex;flex-wrap:wrap;gap:8px 18px;margin-top:22px;color:var(--ink2);font-size:.9rem}
.linkish{background:none;border:0;padding:0;color:var(--blue);font-weight:500;cursor:pointer}
.loading{color:var(--ink3);padding:40px 0;text-align:center}

@media (min-width:700px){ main{padding-top:34px} h1{font-size:1.8rem} }
@media (prefers-reduced-motion:reduce){ .pulse{animation:none} }