:root{
  --bg:#EFF1EC;
  --surface:#FFFFFF;
  --line:#DCDED6;
  --ink:#171512;
  --muted:#6E6A63;
  --mat:#3D5A5B;
  --pack:#8FA6A0;
  --oh:#C9C3B6;
  --profit:#17795E;
  --amber:#C87A20;
  --red:#B5342B;
  --r:14px;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0}
body{
  background:var(--bg);color:var(--ink);
  font-family:"IBM Plex Sans Thai",system-ui,sans-serif;
  font-size:15px;line-height:1.5;
}
body.app{padding-bottom:calc(76px + env(safe-area-inset-bottom))}
.num{font-family:"IBM Plex Mono",monospace;font-variant-numeric:tabular-nums}
h1,h2,h3,.display{font-family:"Bai Jamjuree","IBM Plex Sans Thai",sans-serif;margin:0}

/* header */
header{
  position:sticky;top:0;z-index:20;background:var(--bg);
  padding:14px 16px 10px;border-bottom:1px solid var(--line);
  display:flex;align-items:center;gap:10px;
}
header .grow{flex:1;min-width:0}
header .eyebrow{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
header h1{font-size:19px;font-weight:600;letter-spacing:-.01em}
header .who{font-size:12px;color:var(--muted);text-align:right;line-height:1.3}
header .who a{color:var(--muted)}

main{padding:14px 16px 24px;max-width:520px;margin:0 auto}
.view{display:none}
.view.on{display:block}

.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:14px;margin-bottom:12px}
.card h2{font-size:13px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin-bottom:10px}

/* menu chips */
.chips{display:flex;gap:8px;overflow-x:auto;padding:2px 16px 12px;margin:0 -16px;scrollbar-width:none}
.chips::-webkit-scrollbar{display:none}
.chip{flex:0 0 auto;border:1px solid var(--line);background:var(--surface);color:var(--muted);
  border-radius:999px;padding:8px 14px;font-size:14px;font-weight:500;font-family:inherit}
.chip[aria-pressed="true"]{background:var(--ink);border-color:var(--ink);color:#fff}

/* signature: price structure bar */
.bigrow{display:flex;align-items:flex-end;justify-content:space-between;gap:10px;margin-bottom:4px}
.big{font-family:"Bai Jamjuree";font-size:40px;font-weight:700;line-height:1;letter-spacing:-.02em}
.big small{font-size:15px;font-weight:500;color:var(--muted);margin-left:4px}
.fc{text-align:right;line-height:1.2}
.fc b{font-family:"IBM Plex Mono";font-size:22px;font-weight:600;display:block}
.fc span{font-size:11px;color:var(--muted)}
.fc.ok b{color:var(--profit)} .fc.warn b{color:var(--amber)} .fc.bad b{color:var(--red)}

.bar{display:flex;height:34px;border-radius:8px;overflow:hidden;margin:14px 0 10px;background:#EDEDE8}
.seg{transition:width .35s cubic-bezier(.4,0,.2,1);position:relative;min-width:0}
.seg span{position:absolute;inset:0;display:grid;place-items:center;color:#fff;font-size:11px;font-family:"IBM Plex Mono";font-weight:600}
.legend{display:grid;grid-template-columns:1fr auto;gap:2px 12px;font-size:13px}
.legend .k{display:flex;align-items:center;gap:8px;color:var(--muted)}
.dot{width:9px;height:9px;border-radius:3px;flex:0 0 auto}
.legend .v{font-family:"IBM Plex Mono";font-weight:500;text-align:right}
.legend .tot{border-top:1px solid var(--line);margin-top:6px;padding-top:6px;font-weight:600;color:var(--ink)}

/* price control */
.stepper{display:flex;align-items:center;gap:10px;margin-top:4px}
.stepper button{width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:var(--bg);
  font-size:20px;font-family:"IBM Plex Mono";color:var(--ink)}
.stepper button:active{background:var(--ink);color:#fff}
.stepper input{flex:1;min-width:0;text-align:center;font-family:"IBM Plex Mono";font-size:26px;font-weight:600;
  border:1px solid var(--line);border-radius:12px;padding:8px;background:var(--surface);color:var(--ink)}
input[type=range]{width:100%;margin:12px 0 2px;accent-color:var(--mat)}
.sugg{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.sugg button{border:1px dashed var(--mat);color:var(--mat);background:transparent;border-radius:10px;
  padding:7px 11px;font-size:13px;font-family:inherit;font-weight:500}
.hint{font-size:12.5px;color:var(--muted);margin-top:8px}

/* stat grid */
.stats{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.stat{background:var(--bg);border-radius:10px;padding:10px 12px}
.stat em{font-style:normal;font-size:11.5px;color:var(--muted);display:block}
.stat b{font-family:"IBM Plex Mono";font-size:19px;font-weight:600;display:block;margin-top:2px}

/* lists */
.row{display:flex;align-items:center;gap:10px;padding:11px 0;border-bottom:1px solid var(--line)}
.row:last-child{border-bottom:0}
.row .grow{flex:1;min-width:0}
.row .name{font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.row .sub{font-size:12px;color:var(--muted)}
.row .val{font-family:"IBM Plex Mono";font-weight:600;text-align:right}
.badge{font-family:"IBM Plex Mono";font-size:12px;font-weight:600;padding:3px 7px;border-radius:7px}
.badge.ok{background:#E4F0EA;color:var(--profit)}
.badge.warn{background:#FBF0DF;color:var(--amber)}
.badge.bad{background:#F8E5E3;color:var(--red)}
.iconbtn{border:0;background:transparent;color:var(--muted);font-size:18px;padding:6px}

.btn{display:block;width:100%;padding:14px;border-radius:12px;border:0;background:var(--ink);color:#fff;
  font-family:"Bai Jamjuree";font-size:15px;font-weight:600;text-align:center;text-decoration:none}
.btn.ghost{background:transparent;border:1px solid var(--line);color:var(--ink)}
.btn.danger{background:transparent;border:1px solid var(--red);color:var(--red)}
.btn[disabled]{opacity:.55}

/* fields */
label.f{display:block;margin-bottom:12px}
label.f em{font-style:normal;font-size:12.5px;color:var(--muted);display:block;margin-bottom:5px}
input[type=text],input[type=email],input[type=password],input[type=number],select{
  width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:10px;background:var(--surface);
  font-family:"IBM Plex Sans Thai";font-size:16px;color:var(--ink)}
input[type=number]{font-family:"IBM Plex Mono"}
.two{display:grid;grid-template-columns:1fr 1fr;gap:10px}

/* sheet */
.scrim{position:fixed;inset:0;background:rgba(23,21,18,.42);opacity:0;pointer-events:none;transition:opacity .2s;z-index:40}
.scrim.on{opacity:1;pointer-events:auto}
.sheet{position:fixed;left:0;right:0;bottom:0;z-index:50;background:var(--surface);
  border-radius:20px 20px 0 0;padding:18px 16px calc(20px + env(safe-area-inset-bottom));
  max-height:88vh;overflow-y:auto;transform:translateY(101%);transition:transform .26s cubic-bezier(.32,.72,0,1)}
.sheet.on{transform:translateY(0)}
.sheet h3{font-size:17px;font-weight:600;margin-bottom:14px}
.qtyrow{display:flex;align-items:center;gap:10px;padding:8px 0;border-bottom:1px solid var(--line)}
.qtyrow .grow{flex:1;min-width:0;font-size:14px}
.qtyrow .sub{font-size:12px;color:var(--muted)}
.qtyrow input{width:88px;text-align:right;padding:8px}
.qtyrow .u{width:34px;font-size:12px;color:var(--muted)}

/* bottom nav */
nav.tabs{position:fixed;left:0;right:0;bottom:0;z-index:30;display:grid;grid-template-columns:repeat(5,1fr);
  background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom)}
nav.tabs button{background:none;border:0;padding:10px 2px 12px;font-family:inherit;font-size:10.5px;color:var(--muted);
  display:flex;flex-direction:column;align-items:center;gap:3px}
nav.tabs button svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.7}
nav.tabs button[aria-current="page"]{color:var(--ink);font-weight:600}
.empty{text-align:center;color:var(--muted);font-size:14px;padding:22px 10px}

/* สถานะบันทึก */
.saving{position:fixed;right:14px;bottom:calc(84px + env(safe-area-inset-bottom));z-index:35;
  background:var(--ink);color:#fff;font-size:12px;padding:6px 12px;border-radius:999px;
  opacity:0;transform:translateY(6px);transition:opacity .2s,transform .2s;pointer-events:none}
.saving.on{opacity:.92;transform:translateY(0)}
.saving.err{background:var(--red)}

/* ───── หน้า login / สมัคร ───── */
body.auth{display:grid;place-items:center;min-height:100dvh;padding:24px 16px}
.authbox{width:100%;max-width:380px}
.authbox .brand{text-align:center;margin-bottom:20px}
.authbox .brand .eyebrow{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.authbox .brand h1{font-size:24px;font-weight:700;letter-spacing:-.02em;margin-top:2px}
.authbox .card{padding:20px}
.alert{border-radius:10px;padding:10px 12px;font-size:13.5px;margin-bottom:14px}
.alert.bad{background:#F8E5E3;color:var(--red)}
.alert.ok{background:#E4F0EA;color:var(--profit)}
.authfoot{text-align:center;font-size:13.5px;color:var(--muted);margin-top:16px}
.authfoot a{color:var(--ink);font-weight:600}

/* ปุ่มวิธีใช้งานบน header */
.helpbtn{width:32px;height:32px;flex:0 0 auto;border-radius:50%;border:1px solid var(--line);
  background:var(--surface);color:var(--muted);font-family:"Bai Jamjuree";font-size:15px;font-weight:700}
.helpbtn:active{background:var(--ink);color:#fff;border-color:var(--ink)}

/* ───── คำแนะนำการใช้งาน ───── */
.intro{position:fixed;inset:0;z-index:60;display:none;place-items:center;padding:20px 16px;
  background:rgba(23,21,18,.55);overflow-y:auto}
.intro.on{display:grid}
.introcard{background:var(--surface);border-radius:18px;padding:22px 20px;width:100%;max-width:400px;
  animation:pop .24s cubic-bezier(.32,.72,0,1)}
@keyframes pop{from{opacity:0;transform:translateY(12px) scale(.98)}to{opacity:1;transform:none}}
.introcard .step{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.introcard h3{font-size:21px;font-weight:700;letter-spacing:-.01em;margin:4px 0 10px}
.introcard p{margin:0 0 10px;font-size:14.5px;color:#3A3733}
.introcard .tip{background:var(--bg);border-radius:10px;padding:10px 12px;font-size:13px;color:var(--muted);margin-top:12px}
.introcard .tip b{color:var(--ink);font-weight:600}
.introart{height:74px;border-radius:12px;margin-bottom:14px;display:flex;overflow:hidden;background:#EDEDE8}
.introart i{display:block;height:100%}
.introart.icon{display:grid;place-items:center;font-size:34px;background:var(--bg)}
.dots{display:flex;gap:6px;justify-content:center;margin:16px 0 14px}
.dots i{width:7px;height:7px;border-radius:50%;background:var(--line);transition:all .2s}
.dots i.on{background:var(--ink);width:20px;border-radius:4px}
.introbtns{display:flex;gap:8px}
.introbtns .btn{margin:0}
.skip{display:block;width:100%;text-align:center;background:none;border:0;color:var(--muted);
  font-family:inherit;font-size:13.5px;padding:12px 0 2px}

/* ───── กล่องยืนยัน / แจ้งเตือน ───── */
.modal{position:fixed;inset:0;z-index:70;display:none;place-items:center;padding:22px 18px;
  background:rgba(23,21,18,.55)}
.modal.on{display:grid}
.modalcard{background:var(--surface);border-radius:18px;padding:22px 20px;width:100%;max-width:360px;
  animation:pop .2s cubic-bezier(.32,.72,0,1)}
.modalcard .mico{font-size:30px;line-height:1;margin-bottom:10px;display:block}
.modalcard h3{font-size:18px;font-weight:700;margin-bottom:6px}
.modalcard p{margin:0;font-size:14.5px;color:var(--muted)}
.modalcard .mbtns{display:flex;gap:8px;margin-top:20px}
.modalcard .mbtns.stack{flex-direction:column}
.modalcard .mbtns .btn{margin:0}
.btn.solid-danger{background:var(--red);color:#fff;border:0}

/* ปุ่มชวนเริ่มต้น ตอนยังไม่มีข้อมูล */
.cta{background:var(--surface);border:1px dashed var(--line);border-radius:var(--r);padding:20px 16px;text-align:center}
.cta .big-emoji{font-size:32px;display:block;margin-bottom:8px}
.cta h3{font-size:16px;font-weight:600;margin-bottom:6px}
.cta p{font-size:13.5px;color:var(--muted);margin:0 0 14px}

/* ── ช่องค้นหา ── */
.searchbox{position:relative;margin-bottom:12px}
.searchbox input{width:100%;padding:11px 38px 11px 38px;border:1px solid var(--line);border-radius:12px;
  background:var(--surface);font-family:"IBM Plex Sans Thai";font-size:16px;color:var(--ink)}
.searchbox .sicon{position:absolute;left:12px;top:50%;transform:translateY(-50%);font-size:14px;opacity:.55;pointer-events:none}
.searchbox .clr{position:absolute;right:6px;top:50%;transform:translateY(-50%);width:28px;height:28px;
  border:0;border-radius:50%;background:var(--bg);color:var(--muted);font-size:17px;line-height:1;display:none}
.searchbox.has .clr{display:block}
.sheet .searchbox{margin:10px 0 6px}
.qtyrow.hide{display:none}
.foundnote{font-size:12.5px;color:var(--muted);margin:-4px 0 10px}

/* ── แถวแบบย่อยของเมนู (ไซซ์ / ร้อน-เย็น) ── */
.chips.subchips{padding-top:0;padding-bottom:10px}
.chip.sm{padding:6px 12px;font-size:13px}

/* ── กลุ่มเมนูในแท็บเมนู ── */
.mgroup{margin-bottom:14px}
.mgroup:last-child{margin-bottom:0}
.mghead{display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding-bottom:4px;border-bottom:2px solid var(--ink)}
.mghead span{font-weight:600;font-family:"Bai Jamjuree";font-size:15px}
.linkbtn{background:none;border:0;color:var(--mat);font-family:inherit;font-size:13px;font-weight:600;padding:4px 0}

/* ── ช่องทางเดลิเวอรี่บนหน้าคิดราคา ── */
.chrow{padding:12px 0;border-bottom:1px solid var(--line)}
.chrow:last-of-type{border-bottom:0}
.chhead{display:flex;align-items:center;gap:8px;margin-bottom:8px}
.chhead b{flex:1;min-width:0;font-size:15px}
.chgrid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.chgrid>div{background:var(--bg);border-radius:10px;padding:9px 11px}
.chgrid em{font-style:normal;font-size:11.5px;color:var(--muted);display:block}
.chgrid b{font-family:"IBM Plex Mono";font-size:18px;font-weight:600;display:block;margin-top:2px}
.chgrid span{font-size:11px;color:var(--muted)}

/* ช่องกรอกแบบเปลือย ใช้ในรายการช่องทางขาย */
input.plain{border:0;border-bottom:1px solid var(--line);border-radius:0;padding:6px 2px;background:transparent}
input.plain.num{text-align:right;font-family:"IBM Plex Mono"}

/* ── Menu engineering ── */
.me{border-left:3px solid var(--line);padding:10px 0 10px 12px;margin-bottom:12px}
.me:last-child{margin-bottom:0}
.me.star{border-color:var(--profit)}
.me.horse{border-color:var(--amber)}
.me.puzzle{border-color:var(--mat)}
.me.dog{border-color:var(--red)}
.mehead{display:flex;align-items:flex-start;gap:9px}
.mehead .grow{flex:1;min-width:0}
.mehead b{font-size:15px;font-weight:600}
.mehead .sub{font-size:12px;color:var(--muted)}
.meico{font-size:19px;line-height:1.2}
.me p{margin:8px 0 0;font-size:13px;color:var(--muted)}

ul.todo{margin:0;padding-left:18px}
ul.todo li{font-size:13.5px;margin-bottom:8px;color:#3A3733}
ul.todo li:last-child{margin-bottom:0}

/* จุดขายบนหน้าสมัคร */
.sell{list-style:none;margin:0 0 18px;padding:0}
.sell li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:#3A3733;margin-bottom:9px}
.sell li span{flex:0 0 auto;font-size:16px;line-height:1.35}

@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}