/* Layout: one phone-width column (max 480px), sticky glass header, fixed bottom tabs, bottom sheets for detail */
:root{
  --bg:#F5F1EB; --surface:rgba(255,253,250,.78); --solid:#FFFDFA; --ink:#1D1A17; --muted:#857A6F;
  --line:rgba(29,26,23,.13); --strong:#1D1A17; --milk:#B89C80; --milk-soft:#ECE2D6; --milk-ink:#6E5640;
  --ok:#55785B; --ok-soft:rgba(85,120,91,.12); --warn:#B07F2E; --warn-soft:rgba(176,127,46,.14);
  --bad:#AE4F3B; --bad-soft:rgba(174,79,59,.11); --scrim:rgba(29,26,23,.32);
  --f-display:"Gowun Batang","Noto Serif TC",Georgia,serif;
  --f-body:"Noto Sans TC","PingFang TC","Microsoft JhengHei",system-ui,sans-serif;
  --r:20px; --r-sm:12px;
}
/* 單一淺色主題：手機開深色模式也維持米白、奶茶色 */
:root,:root[data-theme="dark"]{color-scheme:light}
html,body{background:var(--bg)}
body{color:var(--ink);font-family:var(--f-body);font-size:15px;line-height:1.55;-webkit-tap-highlight-color:transparent}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:30;background:var(--bg)}
*{box-sizing:border-box}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--milk);outline-offset:2px}
.wrap{max-width:480px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.num{font-variant-numeric:tabular-nums}

/* segmented control & status dot */
.seg{display:inline-flex;border:1px solid var(--line);border-radius:999px;padding:2px;background:var(--surface)}
.seg button{border:0;background:none;padding:8px 14px;min-height:38px;border-radius:999px;font-size:14px;color:var(--muted)}
.seg button[aria-pressed="true"]{background:var(--strong);color:var(--bg)}
.dot{width:7px;height:7px;border-radius:50%;background:var(--ok);display:inline-block}
.dot.off{background:var(--warn)}

/* header */
header.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:color-mix(in srgb,var(--bg) 82%,transparent);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
header.top .wrap{display:flex;align-items:center;gap:10px;padding-block:12px}
.brand{flex:1;min-width:0}
.brand h1{font-family:var(--f-display);font-weight:700;font-size:22px;margin:0;letter-spacing:-.01em;line-height:1.1}
.brand p.couple{font-family:var(--f-display);font-size:13px;letter-spacing:.04em;color:var(--milk-ink);margin-top:3px}
.brand p{margin:2px 0 0;font-size:11.5px;color:var(--muted);letter-spacing:.08em}
.iconbtn{width:42px;height:42px;border-radius:50%;border:1px solid var(--line);background:var(--surface);display:grid;place-items:center;flex:none}
.iconbtn svg{width:19px;height:19px}
.offline{background:var(--warn-soft);color:var(--warn);font-size:13px;border-bottom:1px solid var(--line)}
.offline .wrap{padding-block:9px;display:flex;gap:8px;align-items:center}

main{padding-bottom:calc(96px + env(safe-area-inset-bottom,0px))}
main .wrap{display:flex;flex-direction:column;gap:14px;padding-block:18px}
.h2{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin:6px 0 -4px}
.h2 h2{font-family:var(--f-display);font-size:19px;margin:0;font-weight:700}
.h2 span{font-size:12.5px;color:var(--muted)}
.eyebrow{font-size:11.5px;letter-spacing:.14em;color:var(--muted);text-transform:uppercase}

.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:16px;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
.card.tap{cursor:pointer;text-align:left;width:100%;display:block}
.card.tap:active{transform:scale(.99)}
.row{display:flex;gap:12px;align-items:center}
.row > .grow{flex:1;min-width:0}
.muted{color:var(--muted)}
.small{font-size:12.5px}
.chip{display:inline-flex;align-items:center;gap:4px;font-size:12px;padding:2px 9px;border-radius:999px;border:1px solid var(--line);white-space:nowrap}
.chip.ok{background:var(--ok-soft);color:var(--ok);border-color:transparent}
.chip.warn{background:var(--warn-soft);color:var(--warn);border-color:transparent}
.chip.bad{background:var(--bad-soft);color:var(--bad);border-color:transparent}
.chip.milk{background:var(--milk-soft);color:var(--milk-ink);border-color:transparent}
.chips{display:flex;gap:6px;flex-wrap:wrap}
.filters{display:flex;gap:8px;overflow-x:auto;padding-bottom:2px;scrollbar-width:none}
.filters button{flex:none;border:1px solid var(--line);background:var(--surface);border-radius:999px;padding:7px 14px;font-size:13.5px}
.filters button[aria-pressed="true"]{background:var(--strong);color:var(--bg);border-color:var(--strong)}

/* stats */
.hero{display:grid;grid-template-columns:1fr auto;gap:8px 16px;align-items:end}
.big{font-family:var(--f-display);font-size:46px;line-height:1;font-weight:700}
.big small{font-size:20px;color:var(--muted);font-weight:400}
.bar{height:6px;border-radius:99px;background:var(--milk-soft);overflow:hidden}
.bar i{display:block;height:100%;background:var(--strong);border-radius:99px}
.bar.over i{background:var(--bad)}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.stat{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:12px 14px}
.stat b{display:block;font-family:var(--f-display);font-size:26px;line-height:1.15}
.stat span{font-size:12px;color:var(--muted)}
.kv{display:grid;grid-template-columns:1fr auto;gap:8px 12px;font-size:14px}
.kv dt{color:var(--muted)} .kv dd{margin:0;text-align:right}
.feed{display:flex;flex-direction:column}
.feed div{display:flex;gap:10px;padding:9px 0;border-top:1px solid var(--line);font-size:13.5px}
.feed div:first-child{border-top:0}
.feed time{color:var(--muted);flex:none;width:42px}

/* list */
.list{display:flex;flex-direction:column;gap:10px}
.gname{font-weight:500;font-size:16px}
.tno{font-family:var(--f-display);font-weight:700;font-size:28px;line-height:1;text-align:center;min-width:52px}
.tno small{display:block;font-family:var(--f-body);font-size:11px;color:var(--muted);font-weight:400;margin-top:3px}
.search{position:relative}
.search input{width:100%;height:56px;border-radius:999px;border:1px solid var(--strong);background:var(--solid);padding:0 20px 0 50px;font-size:17px}
.search svg{position:absolute;left:18px;top:50%;width:20px;height:20px;transform:translateY(-50%);color:var(--muted)}
input.field,select.field,textarea.field{width:100%;min-height:50px;border-radius:14px;border:1px solid var(--line);background:var(--solid);padding:10px 14px;font-size:16px}
label.lbl{display:block;font-size:12.5px;color:var(--muted);margin:0 0 6px;letter-spacing:.04em}
.btn{min-height:54px;border-radius:16px;border:1px solid var(--strong);background:var(--strong);color:var(--bg);font-size:16px;font-weight:500;padding:0 18px;width:100%;display:flex;align-items:center;justify-content:center;gap:8px}
.btn.ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn.danger{background:var(--bad);border-color:var(--bad);color:#fff}
.btn:disabled{opacity:.45;cursor:not-allowed}
.btn.sm{min-height:40px;font-size:14px;border-radius:12px;width:auto}
.btns{display:flex;gap:10px} .btns > *{flex:1}
.amts{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.amts button{min-height:44px;border-radius:12px;border:1px solid var(--line);background:var(--solid);font-variant-numeric:tabular-nums}
.amts button[aria-pressed="true"]{border-color:var(--strong);background:var(--milk-soft)}
.member{display:flex;gap:12px;align-items:center;padding:12px 0;border-top:1px solid var(--line)}
.member:first-child{border-top:0}
.check{width:28px;height:28px;border-radius:9px;border:1.5px solid var(--strong);display:grid;place-items:center;flex:none;background:var(--solid)}
.check[aria-checked="true"]{background:var(--strong);color:var(--bg)}
.check[aria-disabled="true"]{border-color:var(--line);background:var(--ok-soft);color:var(--ok)}
.check svg{width:16px;height:16px}
.rsvpseg{display:inline-flex;border:1px solid var(--line);border-radius:10px;overflow:hidden;flex:none}
.rsvpseg button{border:0;background:none;padding:6px 9px;font-size:12.5px;color:var(--muted)}
.rsvpseg button[aria-pressed="true"]{background:var(--strong);color:var(--bg)}
.tablegrid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.tcard{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:14px;text-align:left;display:flex;flex-direction:column;gap:8px}
.tcard.full{border-color:var(--strong)}
.tcard.over{border-color:var(--bad)}
.tcard .no{font-family:var(--f-display);font-size:24px;font-weight:700;line-height:1}
table.t{width:100%;border-collapse:collapse;font-size:13.5px}
table.t th,table.t td{padding:8px 6px;border-bottom:1px solid var(--line);text-align:left;white-space:nowrap}
table.t th{font-weight:500;color:var(--muted);font-size:12px}
table.t td.r,table.t th.r{text-align:right}
.scroll{overflow-x:auto}
pre.csv{background:var(--solid);border:1px solid var(--line);border-radius:12px;padding:12px;font-size:12px;overflow-x:auto;margin:0;white-space:pre}
.ruled{border-top:1px solid var(--line);padding-top:12px}
.done{text-align:center;padding:8px 0 4px}
.done .tno{font-size:64px;margin:6px auto}
.empty{text-align:center;padding:28px 10px;color:var(--muted);font-size:14px}

/* tabs */
nav.tabs{position:fixed;left:0;right:0;bottom:0;z-index:20;background:color-mix(in srgb,var(--bg) 84%,transparent);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom,0px)}
nav.tabs .wrap{display:flex;justify-content:space-around}
nav.tabs button{flex:1;border:0;background:none;display:flex;flex-direction:column;align-items:center;gap:3px;padding:10px 0 9px;font-size:11.5px;color:var(--muted);min-height:62px}
nav.tabs button svg{width:23px;height:23px}
nav.tabs button[aria-current="page"]{color:var(--ink);font-weight:500}
nav.tabs button[aria-current="page"] svg{stroke-width:2}

/* sheet */
.scrim{position:fixed;inset:0;z-index:40;background:var(--scrim);display:flex;align-items:flex-end;justify-content:center}
.sheet{width:100%;max-width:520px;max-height:88%;overflow:auto;background:var(--solid);border-radius:26px 26px 0 0;border:1px solid var(--line);border-bottom:0;padding:10px max(18px,env(safe-area-inset-left,0px)) calc(20px + env(safe-area-inset-bottom,0px)) max(18px,env(safe-area-inset-right,0px));display:flex;flex-direction:column;gap:14px;animation:up .22s ease}
.grab{width:40px;height:4px;border-radius:9px;background:var(--line);margin:0 auto 2px}
.sheet h3{font-family:var(--f-display);font-size:21px;margin:0}
@keyframes up{from{transform:translateY(24px);opacity:.6}to{transform:none;opacity:1}}
@media (prefers-reduced-motion:reduce){.sheet{animation:none}}

.floor{display:block;width:100%;max-width:300px;margin:0 auto;font-family:var(--f-body)}
.sugg{display:flex;flex-direction:column;margin-top:6px;border-radius:14px;overflow:hidden}
.sugg:has(.sug){border:1px solid var(--line);background:var(--solid)}
.sug{display:flex;flex-direction:column;gap:2px;text-align:left;border:0;border-top:1px solid var(--line);background:none;padding:11px 14px;min-height:52px}
.sug:first-child{border-top:0}
.sug[aria-selected="true"]{background:var(--milk-soft)}
.sug .sn{font-size:16px;font-weight:500}
mark{background:var(--milk-soft);color:inherit;border-radius:3px;padding:0 1px;font-weight:700}
.sug[aria-selected="true"] mark{background:var(--milk);color:var(--bg)}
.stepper{display:inline-flex;align-items:center;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.stepper button{width:40px;height:40px;border:0;background:var(--solid);font-size:18px}
.stepper span{min-width:30px;text-align:center;font-weight:600}
.ovtop{display:flex;gap:18px;align-items:center;margin-top:8px}
.ring{width:128px;height:128px;flex:none}
.ring .trk{fill:none;stroke:var(--milk-soft);stroke-width:11}
.ring .val{fill:none;stroke:var(--strong);stroke-width:11;stroke-linecap:round}
.ringtxt{font-family:var(--f-display);font-size:30px;font-weight:700;fill:var(--ink)}
.bar.split{background:var(--milk)}
.toasts{position:fixed;left:0;right:0;top:calc(env(safe-area-inset-top,0px) + 74px);z-index:60;display:flex;flex-direction:column;align-items:center;gap:8px;pointer-events:none;padding:0 16px}
.toast{max-width:440px;width:100%;background:var(--strong);color:var(--bg);border-radius:16px;padding:12px 16px;font-size:14px;display:flex;gap:10px;align-items:flex-start;box-shadow:0 10px 30px rgba(0,0,0,.18);animation:up .2s ease}
.toast.ok::before,.toast.warn::before,.toast.bad::before{content:"";width:8px;height:8px;border-radius:50%;margin-top:7px;flex:none}
.toast.ok::before{background:#9CC7A2}.toast.warn::before{background:#E8C07A}.toast.bad::before{background:#F0A08C}

.btn.sm{white-space:nowrap;flex:none}