/* ========================================================================
   คลื่นทะเล POS — Design System
   ธีมทะเล: teal/ocean · touch-friendly · high contrast · offline-ready
   ======================================================================== */

:root{
  /* Ocean palette */
  --c-deep:#063b4a;        /* น้ำทะเลลึก */
  --c-sea:#0e7c8b;         /* teal หลัก */
  --c-sea-2:#13a3b3;
  --c-wave:#1fb6c9;
  --c-foam:#e6f6f8;        /* ฟองคลื่น (พื้นอ่อน) */
  --c-sand:#fff8ec;        /* ทราย */
  --c-coral:#ff6b5d;       /* ปะการัง (เน้น/danger) */
  --c-coral-d:#e2483a;
  --c-sun:#ffb020;         /* แดด (warning) */
  --c-lime:#27c08a;        /* success */
  --c-lime-d:#1f9e72;

  --bg:#f3f7f8;
  --surface:#ffffff;
  --line:#dbe6e8;
  --text:#13323a;
  --muted:#6b8389;

  --radius:14px;
  --radius-sm:9px;
  --shadow:0 2px 10px rgba(6,59,74,.08);
  --shadow-lg:0 10px 30px rgba(6,59,74,.16);
  --tap:48px;              /* min touch target */
  --font:'Sukhumvit Set','IBM Plex Sans Thai','Helvetica Neue',-apple-system,system-ui,sans-serif;
}

*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}
html,body{height:100%}
/* มือถือ: ดับเบิลแตะห้ามซูม (ทุกหน้า POS/เว็บร้าน/QR — กดปุ่มรัว ๆ ได้ไม่เด้งซูม)
   ยังใช้สองนิ้วถ่าง (pinch) ซูมได้ตามปกติ เผื่อผู้ใช้สายตาไม่ดี */
html,body{touch-action:manipulation}
body{
  font-family:var(--font);
  font-weight:400;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.45;
  overscroll-behavior:none;
}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
a{color:var(--c-sea);text-decoration:none}
h1,h2,h3,h4{line-height:1.2}
.small{font-size:13px}
.muted{color:var(--muted)}
.center{text-align:center}
.right{text-align:right}
.bold{font-weight:700}
.hidden{display:none!important}
.nowrap{white-space:nowrap}
.flex{display:flex}
.flex-col{display:flex;flex-direction:column}
.items-center{align-items:center}
.justify-between{justify-content:space-between}
.gap-4{gap:4px}.gap-8{gap:8px}.gap-12{gap:12px}.gap-16{gap:16px}
.grow{flex:1}
.mt-8{margin-top:8px}.mt-16{margin-top:16px}.mb-8{margin-bottom:8px}.mb-16{margin-bottom:16px}
.wrap{flex-wrap:wrap}

/* ── Top nav ─────────────────────────────────────────── */
.topbar{
  height:60px;display:flex;align-items:center;gap:16px;
  padding:0 18px;color:#fff;
  background:linear-gradient(120deg,var(--c-deep),var(--c-sea));
  box-shadow:var(--shadow);position:sticky;top:0;z-index:50;
}
.topbar .brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px}
.topbar .brand .logo{font-size:24px}
.topbar .brand small{font-weight:400;opacity:.8;font-size:12px;display:block;margin-top:-3px}
.topbar nav{display:flex;gap:4px;margin-left:auto;flex-wrap:wrap}
.topbar nav a{
  color:#fff;opacity:.82;padding:8px 13px;border-radius:9px;font-size:14px;font-weight:600;
  display:inline-flex;align-items:center;gap:6px;transition:.15s;
}
.topbar nav a:hover{opacity:1;background:rgba(255,255,255,.14)}
.topbar nav a.active{opacity:1;background:rgba(255,255,255,.22)}
.topbar .clock{font-variant-numeric:tabular-nums;opacity:.85;font-size:14px;white-space:nowrap}

/* ── Layout ─────────────────────────────────────────── */
.page{padding:18px;max-width:1500px;margin:0 auto}
.page-head{display:flex;align-items:center;gap:12px;margin-bottom:16px;flex-wrap:wrap}
.page-head h1{font-size:22px;color:var(--c-deep)}
.page-head .sub{color:var(--muted);font-size:14px}

.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.card-pad{padding:16px}
.card-head{padding:14px 16px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:10px}
.card-head h3{font-size:16px;color:var(--c-deep)}

/* ── Buttons ─────────────────────────────────────────── */
.btn{
  min-height:var(--tap);padding:0 18px;border:1px solid var(--line);background:var(--surface);
  border-radius:var(--radius-sm);font-weight:700;cursor:pointer;display:inline-flex;
  align-items:center;justify-content:center;gap:8px;transition:.12s;user-select:none;
}
.btn:hover{border-color:var(--c-sea);color:var(--c-sea)}
.btn:active{transform:translateY(1px)}
.btn:disabled{opacity:.45;cursor:not-allowed}
.btn-primary{background:var(--c-sea);color:#fff;border-color:var(--c-sea)}
.btn-primary:hover{background:var(--c-deep);color:#fff;border-color:var(--c-deep)}
.btn-success{background:var(--c-lime);color:#fff;border-color:var(--c-lime)}
.btn-success:hover{background:var(--c-lime-d);color:#fff}
.btn-danger{background:var(--c-coral);color:#fff;border-color:var(--c-coral)}
.btn-danger:hover{background:var(--c-coral-d);color:#fff}
.btn-warn{background:var(--c-sun);color:#5b3d00;border-color:var(--c-sun)}
.btn-ghost{background:transparent;border-color:transparent}
.btn-lg{min-height:58px;font-size:18px;padding:0 24px}
.btn-sm{min-height:36px;padding:0 12px;font-size:14px}
.btn-block{width:100%}
.btn-icon{min-width:var(--tap);padding:0}

/* ── Badges / pills ─────────────────────────────────── */
.pill{display:inline-flex;align-items:center;gap:5px;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:700}
.pill-gray{background:#eef2f3;color:var(--muted)}
.pill-blue{background:#e2f1f4;color:var(--c-sea)}
.pill-amber{background:#fff1d6;color:#a86a00}
.pill-green{background:#dcf6ec;color:var(--c-lime-d)}
.pill-red{background:#ffe5e1;color:var(--c-coral-d)}

/* status color map */
.st-open,.st-queued{background:#eef2f3;color:var(--muted)}
.st-sent,.st-pending{background:#fff1d6;color:#a86a00}
.st-cooking{background:#ffe0c2;color:#b3540a}
.st-served,.st-done{background:#dcf6ec;color:var(--c-lime-d)}
.st-paid{background:#e2f1f4;color:var(--c-sea)}
.st-cancelled{background:#ffe5e1;color:var(--c-coral-d)}

/* ── Forms ──────────────────────────────────────────── */
label.field{display:block;margin-bottom:12px}
label.field>span{display:block;font-size:13px;font-weight:600;color:var(--muted);margin-bottom:5px}
input,select,textarea{
  width:100%;min-height:var(--tap);padding:10px 12px;border:1px solid var(--line);
  border-radius:var(--radius-sm);background:#fff;
}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--c-sea);box-shadow:0 0 0 3px rgba(19,163,179,.15)}
textarea{min-height:70px;resize:vertical}

/* ── Tables ─────────────────────────────────────────── */
table.tbl{width:100%;border-collapse:collapse}
table.tbl th,table.tbl td{padding:11px 12px;text-align:left;border-bottom:1px solid var(--line)}
table.tbl th{font-size:13px;color:var(--muted);font-weight:700;background:var(--c-foam)}
table.tbl tr:last-child td{border-bottom:none}
table.tbl tbody tr:hover{background:#f7fbfb}

/* ── Stat cards ─────────────────────────────────────── */
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:14px}
.stat{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow)}
.stat .label{font-size:13px;color:var(--muted);font-weight:600}
.stat .value{font-size:30px;font-weight:800;color:var(--c-deep);margin-top:4px;font-variant-numeric:tabular-nums}
.stat .value.money::before{content:'฿'}
.stat .sub{font-size:12px;color:var(--muted);margin-top:2px}
.stat.accent{background:linear-gradient(120deg,var(--c-sea),var(--c-wave));border:none}
.stat.accent .label,.stat.accent .value,.stat.accent .sub{color:#fff}
.stat.warn{border-color:var(--c-sun);background:#fffaf0}

/* ── Toast ──────────────────────────────────────────── */
#toast-wrap{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);z-index:1000;display:flex;flex-direction:column;gap:8px;align-items:center}
.toast{background:var(--c-deep);color:#fff;padding:12px 20px;border-radius:999px;box-shadow:var(--shadow-lg);font-weight:600;animation:toastIn .25s ease;max-width:90vw}
.toast.ok{background:var(--c-lime-d)}
.toast.err{background:var(--c-coral-d)}
@keyframes toastIn{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}

/* ── Modal ──────────────────────────────────────────── */
.modal-bg{position:fixed;inset:0;background:rgba(6,59,74,.45);display:flex;align-items:center;justify-content:center;z-index:200;padding:16px}
.modal{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow-lg);width:min(460px,100%);max-height:90vh;overflow:auto}
.modal-head{padding:16px 18px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:between;font-weight:800;color:var(--c-deep);font-size:18px}
.modal-body{padding:18px}
.modal-foot{padding:14px 18px;border-top:1px solid var(--line);display:flex;gap:10px;justify-content:flex-end}

/* ── Empty state ────────────────────────────────────── */
.empty{text-align:center;padding:48px 20px;color:var(--muted)}
.empty .ico{font-size:48px;opacity:.5;margin-bottom:10px}

/* ── Scrollbar ──────────────────────────────────────── */
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-thumb{background:#c5d6d9;border-radius:8px}
::-webkit-scrollbar-track{background:transparent}

@media (max-width:760px){
  .page{padding:12px}
  .topbar{gap:8px;padding:0 10px}
  .topbar .brand{font-size:17px}
  .topbar .brand small{display:none}
  .topbar nav{flex-wrap:nowrap;overflow-x:auto;gap:2px;-webkit-overflow-scrolling:touch;scrollbar-width:none}
  .topbar nav::-webkit-scrollbar{display:none}
  .topbar nav a span{display:none}
  .topbar nav a{padding:8px 11px;font-size:17px}
  .stat-grid{grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:10px}
  .stat{padding:13px}
  .stat .value{font-size:23px}
  .card-pad{padding:13px}
  .page-head h1{font-size:19px}
}
@media (max-width:520px){
  .topbar .clock{display:none}
  .stat-grid{grid-template-columns:1fr 1fr}
}

/* ── ตาราง → การ์ด บนมือถือ (ใส่ class .tbl-cards ที่ <table>) ── */
@media (max-width:600px){
  .tbl-cards thead{display:none}
  .tbl-cards, .tbl-cards tbody, .tbl-cards tr, .tbl-cards td{display:block;width:100%}
  .tbl-cards tr{border:1.5px solid var(--line);border-radius:12px;margin-bottom:10px;padding:6px 4px;background:var(--surface)}
  .tbl-cards tr.low-row{border-color:var(--c-sun);background:#fffaf0}
  .tbl-cards td{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:7px 12px;border:none;text-align:right}
  .tbl-cards td::before{content:attr(data-label);font-weight:700;color:var(--muted);text-align:left}
  .tbl-cards td:first-child{border-bottom:1px solid var(--line);padding-bottom:9px;font-size:16px}
  .tbl-cards td:first-child::before{content:''}
  .tbl-cards td.no-print::before{content:''}
  .tbl-cards td.no-print .flex{width:100%}
  .tbl-cards td.no-print .btn{flex:1}
}