:root{
  --ground:#eef3f7; --surface:#fff; --surface-2:#f4f8fb; --ink:#0f2333; --ink-soft:#2c4155;
  --muted:#5f7386; --line:#d8e2ea; --accent:#d76631; --accent-ink:#a8481d; --sea:#137687;
  --good:#2c8768; --warn:#b3812f; --crit:#c2453f;
  --f-body:system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --f-mono:ui-monospace,"SF Mono",Menlo,monospace;
}
@media (prefers-color-scheme:dark){
  :root{ --ground:#0a1420; --surface:#0f1e2c; --surface-2:#14283a; --ink:#e9f1f7; --ink-soft:#b9cad8;
    --muted:#8ba0b1; --line:#22384a; --accent:#ee8452; --accent-ink:#f0a077; --sea:#39a1b2;
    --good:#4bb191; --warn:#d0a457; --crit:#e0736d; }
}
*{box-sizing:border-box;}
[hidden]{display:none !important;}   /* the hidden attribute must beat component display rules */
body{margin:0;font-family:var(--f-body);background:var(--ground);color:var(--ink);line-height:1.5;}
button,input,select,textarea{font:inherit;color:inherit;}
.err{color:var(--crit);font-size:14px;min-height:18px;margin:4px 0 0;}

/* buttons */
.btn{border:1px solid var(--line);background:var(--surface);border-radius:9px;padding:8px 14px;
  cursor:pointer;font-size:14px;font-weight:500;transition:.15s;}
.btn:hover{border-color:var(--accent);}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.btn-primary{background:var(--accent);border-color:var(--accent);color:#fff;}
.btn-primary:hover{filter:brightness(1.05);}
.btn-ghost{background:transparent;}
.btn-sm{padding:5px 10px;font-size:13px;border-radius:7px;}
.btn-good{color:var(--good);border-color:color-mix(in srgb,var(--good) 40%,var(--line));}
.btn-crit{color:var(--crit);border-color:color-mix(in srgb,var(--crit) 40%,var(--line));}
.btn[disabled]{opacity:.45;cursor:not-allowed;}

/* login */
.login{min-height:100vh;display:grid;place-items:center;padding:20px;}
.login-card{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:32px;
  width:min(360px,100%);display:flex;flex-direction:column;gap:14px;box-shadow:0 10px 40px -20px rgba(0,0,0,.4);}
.brand{font-size:30px;font-weight:700;}
.brand-sub{margin:-10px 0 8px;color:var(--muted);font-family:var(--f-mono);font-size:12px;letter-spacing:.15em;text-transform:uppercase;}
.login-card label{display:flex;flex-direction:column;gap:5px;font-size:13px;color:var(--muted);}
.login-card input{border:1px solid var(--line);background:var(--surface-2);border-radius:9px;padding:10px 12px;font-size:15px;}

/* app shell */
.app{min-height:100vh;}
.topbar{display:flex;align-items:center;gap:20px;padding:12px 20px;background:var(--surface);
  border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10;flex-wrap:wrap;}
.logo{font-weight:700;font-size:18px;}
.tabs{display:flex;gap:4px;flex:1;flex-wrap:wrap;}
.tab{background:transparent;border:0;padding:8px 12px;border-radius:8px;cursor:pointer;color:var(--muted);font-weight:500;font-size:14px;}
.tab.active{background:var(--surface-2);color:var(--ink);}
.tab:hover{color:var(--ink);}
.who{display:flex;align-items:center;gap:10px;font-size:14px;}
#notifyBtn{padding:6px 10px;font-size:16px;line-height:1;}
#notifyBtn.on{border-color:var(--accent);background:color-mix(in srgb,var(--accent) 12%,transparent);}
.pill{font-family:var(--f-mono);font-size:11px;text-transform:uppercase;letter-spacing:.06em;
  padding:3px 8px;border-radius:999px;background:var(--surface-2);border:1px solid var(--line);color:var(--sea);}
.view{max-width:1200px;margin:0 auto;padding:22px 20px 60px;}

/* toolbar */
.toolbar{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:16px;}
.toolbar input,.toolbar select{border:1px solid var(--line);background:var(--surface);border-radius:9px;padding:8px 11px;font-size:14px;}
.toolbar .grow{flex:1;min-width:160px;}
.flbl{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.04em;}
.spacer{flex:1;}

/* table */
.tablewrap{overflow-x:auto;border:1px solid var(--line);border-radius:14px;background:var(--surface);}
table{width:100%;border-collapse:collapse;font-size:14px;min-width:760px;}
th,td{text-align:left;padding:11px 14px;border-bottom:1px solid var(--line);white-space:nowrap;vertical-align:middle;}
th{font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);font-weight:600;background:var(--surface-2);position:sticky;top:0;}
tr:last-child td{border-bottom:0;}
td.num{font-variant-numeric:tabular-nums;text-align:right;}
.rowref{font-family:var(--f-mono);font-size:13px;color:var(--accent-ink);cursor:pointer;font-weight:600;}
.rowactions{display:flex;gap:6px;justify-content:flex-end;}

/* status chips */
.chip{font-size:11px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;padding:4px 9px;border-radius:999px;display:inline-block;}
.st-pending{background:color-mix(in srgb,var(--warn) 16%,transparent);color:var(--warn);}
.st-needs_review{background:color-mix(in srgb,var(--accent) 16%,transparent);color:var(--accent-ink);}
.st-approved{background:color-mix(in srgb,var(--good) 16%,transparent);color:var(--good);}
.st-rejected,.st-cancelled{background:color-mix(in srgb,var(--crit) 15%,transparent);color:var(--crit);}
.st-waitlisted{background:color-mix(in srgb,var(--sea) 16%,transparent);color:var(--sea);}

/* sailings / capacity */
.capgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px;}
.capcard{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:14px 16px;}
.capname{font-weight:600;margin-bottom:8px;}
.caplbl{display:flex;flex-direction:column;gap:5px;font-size:12px;color:var(--muted);}
.capinput{border:1px solid var(--line);background:var(--surface-2);border-radius:8px;padding:8px 10px;font-size:15px;font-variant-numeric:tabular-nums;}
.occ{width:110px;height:8px;border-radius:999px;background:color-mix(in srgb,var(--muted) 22%,transparent);overflow:hidden;display:inline-block;vertical-align:middle;}
.occ-bar{height:100%;background:var(--good);border-radius:999px;transition:width .3s ease;}
.occ-bar.full{background:var(--crit);}

/* cards / stats */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin-bottom:20px;}
.stat{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:16px;}
.stat .n{font-size:28px;font-weight:700;font-variant-numeric:tabular-nums;}
.stat .l{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.05em;}
.stat.hero{background:linear-gradient(135deg,var(--accent),var(--sea));border:0;color:#fff;}
.stat.hero .l{color:rgba(255,255,255,.85);}
.stat.sm{padding:12px 14px;}
.stat.sm .n{font-size:22px;}
tfoot td{background:var(--surface-2);font-weight:600;border-top:2px solid var(--line);}
.tfoot-label{text-align:right;}

/* settings cards + switches */
.card{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:18px 20px;margin-bottom:16px;max-width:640px;}
.switch{display:flex;align-items:center;gap:10px;padding:8px 0;font-size:14px;cursor:pointer;}
.switch input{width:18px;height:18px;accent-color:var(--accent);}

/* GST invoice */
.invoice{background:#fff;color:#111;border-radius:10px;padding:26px;font-size:13px;}
.inv-head{display:flex;justify-content:space-between;gap:16px;border-bottom:2px solid #111;padding-bottom:14px;margin-bottom:16px;}
.inv-co{font-size:18px;font-weight:700;}
.inv-sub{color:#555;font-size:12px;margin-top:2px;}
.inv-title{text-align:right;font-weight:700;font-size:15px;letter-spacing:.05em;}
.inv-bill{display:flex;justify-content:space-between;gap:20px;margin-bottom:16px;line-height:1.6;}
.inv-table{width:100%;border-collapse:collapse;margin-bottom:16px;min-width:0;}
.inv-table th,.inv-table td{border:1px solid #ccc;padding:8px 10px;text-align:left;font-size:13px;white-space:normal;}
.inv-table th{background:#f2f2f2;}
.inv-table .num,.inv-totals .num{text-align:right;}
.inv-totals{max-width:280px;margin-left:auto;}
.inv-row{display:flex;justify-content:space-between;padding:5px 2px;border-bottom:1px dashed #ddd;}
.inv-grand{font-weight:700;font-size:15px;border-bottom:0;border-top:2px solid #111;margin-top:4px;padding-top:8px;}
.inv-foot{color:#777;font-size:11px;text-align:center;margin-top:18px;}
@media print{
  body *{visibility:hidden !important;}
  #invoicePrint,#invoicePrint *{visibility:visible !important;}
  #invoicePrint{position:absolute;inset:0;margin:0;box-shadow:none;}
  .no-print{display:none !important;}
}

/* modal */
.modal{position:fixed;inset:0;background:rgba(8,18,28,.55);display:grid;place-items:center;z-index:50;padding:16px;}
.modal-card{background:var(--surface);border:1px solid var(--line);border-radius:16px;width:min(560px,100%);
  max-height:90vh;overflow:auto;padding:24px;}
.modal-card h3{margin:0 0 14px;font-size:20px;}
.field{display:flex;flex-direction:column;gap:5px;margin-bottom:12px;font-size:13px;color:var(--muted);}
.field input,.field select,.field textarea{border:1px solid var(--line);background:var(--surface-2);border-radius:9px;padding:9px 11px;font-size:14px;}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
.modal-actions{display:flex;gap:10px;justify-content:flex-end;margin-top:8px;}
.kv{display:grid;grid-template-columns:130px 1fr;gap:6px 12px;font-size:14px;margin-bottom:16px;}
.kv dt{color:var(--muted);}
.kv dd{margin:0;}
.timeline{border-top:1px solid var(--line);padding-top:12px;}
.tl-item{font-size:13px;padding:8px 0;border-bottom:1px dashed var(--line);}
.tl-item b{color:var(--ink);}
.tl-item .t{color:var(--muted);font-family:var(--f-mono);font-size:11px;}
.empty{padding:40px;text-align:center;color:var(--muted);}
.toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);background:var(--ink);color:var(--ground);
  padding:11px 18px;border-radius:10px;font-size:14px;z-index:80;box-shadow:0 8px 24px rgba(0,0,0,.3);}
@media (max-width:560px){.grid2{grid-template-columns:1fr;}.kv{grid-template-columns:100px 1fr;}}
@media (prefers-reduced-motion:reduce){*{transition:none!important;}}

/* ---------- mobile / touch ---------- */
@media (max-width:720px){
  /* header + tabs scroll horizontally instead of wrapping into a tall stack */
  .topbar{gap:10px;padding:10px 14px;}
  .logo{font-size:16px;}
  .tabs{flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none;order:3;width:100%;flex-basis:100%;}
  .tabs::-webkit-scrollbar{display:none;}
  .tab{white-space:nowrap;padding:9px 12px;}
  .who{order:2;margin-left:auto;}
  .view{padding:16px 14px 80px;}
  .toolbar .grow{min-width:100%;}
  /* comfortable tap targets + no iOS zoom-on-focus (needs >=16px) */
  .btn{min-height:42px;}
  .btn-sm{min-height:36px;}
  input,select,textarea,.toolbar input,.toolbar select,.capinput,.login-card input,.field input,.field select,.field textarea{font-size:16px;}
  /* bottom-sheet style modal */
  .modal{place-items:end center;padding:0;}
  .modal-card{width:100%;max-width:100%;border-radius:18px 18px 0 0;max-height:92vh;padding:22px 18px calc(22px + env(safe-area-inset-bottom));}
  .modal-actions{flex-wrap:wrap;}
  .modal-actions .btn{flex:1;}
}

/* responsive tables → stacked cards on phones */
@media (max-width:640px){
  table.responsive{min-width:0;width:100%;}
  table.responsive thead{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);}
  table.responsive tbody{display:block;}
  table.responsive tr{display:block;border:1px solid var(--line);border-radius:12px;margin:0 0 10px;padding:4px 2px;background:var(--surface);}
  table.responsive td{display:flex;justify-content:space-between;align-items:center;gap:14px;
    border:0;border-bottom:1px dashed var(--line);padding:9px 14px;white-space:normal;text-align:right;}
  table.responsive tr td:last-child{border-bottom:0;}
  table.responsive td::before{content:attr(data-label);color:var(--muted);font-size:11px;font-weight:600;
    text-transform:uppercase;letter-spacing:.05em;text-align:left;}
  table.responsive td.num{text-align:right;}
  table.responsive td.rowactions-cell{justify-content:flex-end;}
  table.responsive td.rowactions-cell::before{display:none;}
  table.responsive .rowactions{flex-wrap:wrap;justify-content:flex-end;}
  table.responsive tfoot{display:block;}
  table.responsive tfoot tr{background:var(--surface-2);}
}