:root{
  --accent:#1D3E5E; --accent-ink:#142C44; --accent-soft:#EAF0F6; --accent-border:#C3D4E3;
  --accent-ring:rgba(29,62,94,.12); --gold:#A8772E; --gold-soft:#F6EEDD;
  --ink:#1f2a37; --ink-2:#64748b; --white:#fff; --border:#e2e8f0; --border-strong:#cbd5e1;
  --input-bg:#f8fafc; --surface-mut:#f1f5f9; --page-bg:#f5f7fa;
  --error:#dc2626; --error-ink:#b91c1c; --error-soft:#fef2f2; --error-border:#fecaca;
  --green:#16a34a; --green-ink:#15803d; --green-soft:#f0fdf4; --green-border:#bbf7d0;
  --status-pending-bg:#fef9c3; --status-pending-ink:#854d0e; --status-pending-border:#fde68a;
  --font-sans:"Sarabun","Noto Sans Thai",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
}
*{box-sizing:border-box}
html,body{margin:0}
body{
  font-family:var(--font-sans); color:var(--ink); line-height:1.45;
  background:radial-gradient(125% 120% at 50% 0%, #F3F5F8 0%, #E7EAF0 58%, #DDE1E9 100%);
  min-height:100vh;
}
.wrap{max-width:480px;margin:0 auto;padding:18px 20px 40px}
.wrap-wide{max-width:820px}
h1,h2,h3{margin:0;color:var(--accent-ink);text-wrap:balance}
p{margin:0}
a{color:var(--accent)}
.hidden{display:none !important}
@keyframes scrise{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
@keyframes scpop{0%{transform:scale(.4);opacity:0}60%{transform:scale(1.08)}100%{transform:scale(1);opacity:1}}
.screen{animation:scrise .28s ease}

/* brand */
.brand{display:flex;flex-direction:column;align-items:center;text-align:center;padding:24px 0 18px}
.brand .mark{color:var(--accent)}
.brand .name{margin-top:11px;font-size:24px;font-weight:700;letter-spacing:.3em;color:var(--accent-ink);padding-left:.3em}
.brand .sub{margin-top:5px;font-size:12px;font-weight:600;letter-spacing:.24em;color:var(--gold)}
.lead{text-align:center;margin-top:8px;font-size:15px;color:var(--ink);text-wrap:pretty}
.h-center{text-align:center}

/* cards */
.card{background:var(--white);border:1px solid var(--border);border-radius:12px;padding:18px;
  box-shadow:0 1px 4px rgba(0,0,0,.05);margin-top:14px}
.card-head{display:flex;align-items:center;gap:9px;margin-bottom:15px}
.card-head .bar{width:4px;height:18px;border-radius:2px;background:var(--accent)}
.card-head h3{font-size:17px}

/* forms */
label{display:block;font-size:15px;font-weight:600;color:var(--ink);margin-bottom:6px}
.req{color:var(--error)}
input,textarea,select{width:100%;height:46px;padding:0 14px;background:var(--input-bg);
  border:1.5px solid var(--border);border-radius:8px;font-size:16px;color:var(--ink);
  outline:none;font-family:inherit;transition:border-color .15s,box-shadow .15s}
textarea{height:auto;min-height:74px;padding:11px 14px;line-height:1.5;resize:vertical}
input:focus,textarea:focus,select:focus{border-color:var(--accent);box-shadow:0 0 0 4px var(--accent-ring)}
.mono{font-family:var(--font-mono);letter-spacing:.08em;text-transform:uppercase;font-weight:600;color:var(--accent-ink)}
.field{margin-top:14px}
.row{display:flex;gap:12px}
.row > *{flex:1;min-width:0}
.err{font-size:13.5px;color:var(--error-ink);margin-top:6px}

/* buttons */
.btn{width:100%;height:48px;background:var(--accent);color:#fff;border:none;border-radius:10px;
  font-size:17px;font-weight:600;font-family:inherit;cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  box-shadow:0 2px 8px -2px var(--accent-ring);transition:background .15s,transform .1s}
.btn:hover{background:var(--accent-ink)}
.btn:active{transform:scale(.98)}
.btn.ghost{background:transparent;color:var(--ink);border:1.5px solid var(--border-strong);box-shadow:none}
.btn.ghost:hover{background:var(--surface-mut)}
.btn.sm{height:40px;font-size:15px;width:auto;padding:0 16px}
.btn.danger{background:var(--error)}
.btn.danger:hover{background:var(--error-ink)}
.link-btn{background:none;border:none;font-family:inherit;font-size:14.5px;font-weight:600;color:var(--accent);cursor:pointer}
.muted-btn{background:none;border:none;font-family:inherit;font-size:13.5px;color:var(--ink-2);cursor:pointer;
  display:inline-flex;align-items:center;gap:6px}
.back{width:38px;height:38px;border-radius:10px;border:1px solid var(--border);background:var(--white);
  display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--ink);flex:none}
.head-row{display:flex;align-items:center;gap:12px;padding:6px 0 14px}
.head-row h2{font-size:21px}

/* notices */
.note{display:flex;gap:11px;align-items:flex-start;border-radius:10px;padding:13px 15px;margin-top:14px;
  font-size:14.5px;line-height:1.5}
.note.info{background:var(--accent-soft);border:1px solid var(--accent-border);color:var(--accent-ink)}
.note.ok{background:var(--green-soft);border:1px solid var(--green-border);color:var(--green-ink)}
.note.err{background:var(--error-soft);border:1px solid var(--error-border);color:var(--error-ink)}

/* host chip */
.chip{display:inline-flex;align-items:center;gap:9px;background:var(--accent-soft);
  border:1px solid var(--accent-border);border-radius:999px;padding:8px 14px;margin-bottom:6px}
.chip .dot{width:4px;height:4px;border-radius:50%;background:var(--accent-border)}
.chip .lbl{font-family:var(--font-mono);font-size:13px;font-weight:700;letter-spacing:.06em;color:var(--accent-ink)}
.chip .who{font-size:13.5px;color:var(--accent-ink)}

/* room options */
.room{position:relative;width:100%;text-align:left;display:flex;align-items:center;justify-content:space-between;
  gap:12px;padding:14px 16px;background:var(--white);border:1.5px solid var(--border);border-radius:11px;
  cursor:pointer;font-family:inherit;margin-bottom:10px}
.room.sel{border-color:var(--accent);box-shadow:0 0 0 4px var(--accent-ring)}
.room .rname{display:block;font-size:16px;font-weight:600;color:var(--ink)}
.room .rdesc{display:block;font-size:13px;color:var(--ink-2);margin-top:2px}
.room .rprice{display:block;font-size:16px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums}
.room .runit{display:block;font-size:12px;color:var(--ink-2);margin-top:1px}

/* room card (per Requested Room) */
.rcard{background:var(--surface-mut);border:1.5px solid var(--border);border-radius:12px;padding:14px;margin-bottom:12px}
.rcard-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}
.rcard-title{font-size:15px;font-weight:700;color:var(--accent-ink)}
.rcard-del{background:none;border:none;font-family:inherit;font-size:13.5px;font-weight:600;color:var(--error-ink);cursor:pointer}
.rcard .rtype-sel{background:var(--white)}
.rrow{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:12px}
.rrow-lbl{font-size:14.5px;font-weight:600;color:var(--ink)}
.rrow .stepper{width:150px;flex:none}
.rcard .check{margin-top:11px}
.rsub{text-align:right;font-size:13.5px;font-weight:700;color:var(--accent);margin-top:12px;font-variant-numeric:tabular-nums}
.rdisc{margin-top:9px;font-size:13.5px;color:var(--ink-2);font-variant-numeric:tabular-nums}
.rdisc s{opacity:.7}
.rdisc b{color:var(--accent)}
.rdisc .save{display:inline-block;margin-left:5px;background:var(--green-soft);color:var(--green-ink);
  border:1px solid var(--green-border);border-radius:999px;padding:1px 8px;font-size:12px;font-weight:700}

/* stepper */
.stepper{display:flex;align-items:center;height:46px;background:var(--input-bg);
  border:1.5px solid var(--border);border-radius:8px;overflow:hidden}
.stepper button{width:44px;height:100%;border:none;background:none;font-size:22px;color:var(--accent);cursor:pointer}
.stepper .val{flex:1;text-align:center;font-size:18px;font-weight:600;font-variant-numeric:tabular-nums}

/* estimate */
.estimate{background:linear-gradient(135deg,var(--accent),var(--accent-ink));border-radius:14px;
  padding:18px 20px;margin-top:16px;color:#fff;box-shadow:0 8px 24px -8px var(--accent-ring)}
.estimate .cap{font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;opacity:.82}
.estimate .total{font-size:33px;font-weight:700;font-variant-numeric:tabular-nums;margin-top:2px}
.estimate .line{font-size:14px;opacity:.85}
.estimate .save-line{display:inline-block;margin-top:9px;background:rgba(255,255,255,.16);
  border-radius:999px;padding:3px 11px;font-size:13px;font-weight:700;font-variant-numeric:tabular-nums}
.estimate hr{border:none;height:1px;background:rgba(255,255,255,.2);margin:13px 0}
.estimate .fine{font-size:12.5px;opacity:.78;line-height:1.5}

/* confirm */
.tick{width:74px;height:74px;border-radius:50%;background:var(--accent);display:flex;align-items:center;
  justify-content:center;margin:6px auto 18px;animation:scpop .45s cubic-bezier(.34,1.56,.64,1);
  box-shadow:0 10px 26px -6px var(--accent-ring)}
.bidbox{background:var(--accent-soft);border:1px solid var(--accent-border);border-radius:12px;
  padding:16px;text-align:center;margin-top:20px}
.bidbox .cap{font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--accent-ink);opacity:.82}
.bidbox .bid{font-family:var(--font-mono);font-size:26px;font-weight:700;letter-spacing:.1em;color:var(--accent-ink);margin-top:6px}
.bidbox .hint{font-size:13px;color:var(--accent-ink);opacity:.78;margin-top:6px}
.kv{display:flex;justify-content:space-between;gap:14px}
.kv .k{font-size:14px;color:var(--ink-2);flex:none}
.kv .v{font-size:14.5px;font-weight:600;color:var(--ink);text-align:right}
.kv .v.big{font-size:18px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums}
.divider{height:1px;background:var(--border)}

/* status badge */
.badge{display:inline-flex;align-items:center;gap:8px;padding:9px 18px;border-radius:999px;
  font-size:16px;font-weight:700;border:1px solid transparent}
.badge.pending{background:var(--status-pending-bg);color:var(--status-pending-ink);border-color:var(--status-pending-border)}
.badge.confirmed{background:var(--accent-soft);color:var(--accent-ink);border-color:var(--accent-border)}
.badge.rejected{background:var(--error-soft);color:var(--error-ink);border-color:var(--error-border)}

/* checkbox */
.check{display:flex;align-items:center;gap:10px;background:none;border:none;cursor:pointer;font-family:inherit;padding:0;margin-top:16px}
.check .box{position:relative;width:21px;height:21px;border-radius:6px;border:1.5px solid var(--border-strong);flex:none;background:var(--input-bg)}
.check.on .box{background:var(--accent);border-color:var(--accent)}
.check.on .box::after{content:"";position:absolute;inset:0;background:no-repeat center/13px url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12' fill='none' stroke='white' stroke-width='1.9' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M2.5 6.5 5 9 9.5 3.5'/%3E%3C/svg%3E")}
.check .txt{font-size:14.5px;color:var(--ink-2)}

/* admin list */
.toolbar{display:flex;gap:8px;flex-wrap:wrap;margin:6px 0 14px}
.filter{padding:7px 14px;border-radius:999px;border:1px solid var(--border-strong);background:var(--white);
  font-family:inherit;font-size:14px;color:var(--ink-2);cursor:pointer}
.filter.on{background:var(--accent);color:#fff;border-color:var(--accent)}
.req-row{display:block;width:100%;text-align:left;background:var(--white);border:1px solid var(--border);
  border-radius:12px;padding:14px 16px;margin-bottom:10px;cursor:pointer;font-family:inherit;
  box-shadow:0 1px 4px rgba(0,0,0,.05)}
.req-row .top{display:flex;justify-content:space-between;align-items:center;gap:10px}
.req-row .gname{font-size:16px;font-weight:600;color:var(--ink)}
.req-row .meta{font-size:13.5px;color:var(--ink-2);margin-top:4px}
.req-row .lbl{font-family:var(--font-mono);font-size:12px;color:var(--accent)}
.tag{font-size:12.5px;font-weight:700;padding:4px 10px;border-radius:999px}
.tag.pending{background:var(--status-pending-bg);color:var(--status-pending-ink)}
.tag.confirmed{background:var(--accent-soft);color:var(--accent-ink)}
.tag.rejected{background:var(--error-soft);color:var(--error-ink)}
.empty{text-align:center;color:var(--ink-2);padding:40px 0;font-size:15px}
.tabbar{display:flex;gap:6px;background:var(--white);border:1px solid var(--border);border-radius:10px;padding:5px;margin-bottom:16px}
.tabbar button{flex:1;height:38px;border:none;border-radius:7px;background:none;font-family:inherit;font-size:15px;font-weight:600;color:var(--ink-2);cursor:pointer}
.tabbar button.on{background:var(--accent);color:#fff}
.topbar{display:flex;justify-content:space-between;align-items:center;padding:6px 0 10px}
.topbar .who{font-size:14px;color:var(--ink-2)}