/* ===== tokens (จาก prototype.html) ===== */
:root{
  --bg:#f4f5f7;--card:#fff;--ink:#16181d;--mute:#6b7280;--line:#e6e8ec;--brand:#0f766e;--brand-soft:#e6f4f2;
  --s-ack:#d97706;--s-ack-bg:#fef3c7;--s-doing:#2563eb;--s-doing-bg:#dbeafe;--s-review:#7c3aed;--s-review-bg:#ede9fe;
  --s-done:#16a34a;--s-done-bg:#dcfce7;--s-block:#dc2626;--s-block-bg:#fee2e2;--s-cancel:#6b7280;--s-cancel-bg:#f3f4f6;
  --radius:14px;
  --nav-h:64px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{font-family:"Sarabun","TH Sarabun New",system-ui,sans-serif;background:#d9dde3;color:var(--ink);font-size:15px;line-height:1.45;-webkit-tap-highlight-color:transparent;min-height:100vh}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer}
button:disabled{cursor:default;opacity:.6}
a{color:var(--brand)}
[hidden]{display:none!important}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}

/* ===== โครงหน้า (mobile-first 390px; desktop แสดงกลางจอ) ===== */
.app{max-width:430px;margin:0 auto;min-height:100vh;background:var(--bg);position:relative;padding-bottom:calc(var(--nav-h) + 24px + env(safe-area-inset-bottom))}
.app-header{position:sticky;top:0;z-index:5;background:var(--bg);padding:calc(14px + env(safe-area-inset-top)) 16px 10px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.app-header h1{font-size:20px;font-weight:700}
.me-btn{border:0;background:var(--brand-soft);color:var(--brand);width:36px;height:36px;border-radius:50%;font-weight:700;font-size:14px}
main{padding:0 16px}

/* bottom tab 4 ช่อง */
.nav{position:fixed;bottom:0;left:50%;transform:translateX(-50%);width:100%;max-width:430px;background:#fff;border-top:1px solid var(--line);display:flex;padding:6px 4px calc(6px + env(safe-area-inset-bottom));z-index:10}
.nav a{flex:1;text-decoration:none;font-size:11px;color:var(--mute);display:flex;flex-direction:column;align-items:center;gap:2px;padding:4px;position:relative}
.nav a.on{color:var(--brand);font-weight:600}
.nav svg{width:24px;height:24px}
.badge{position:absolute;top:0;right:calc(50% - 22px);background:var(--s-block);color:#fff;font-size:10px;line-height:16px;border-radius:999px;padding:0 5px;min-width:16px;text-align:center;font-weight:600}

/* ปุ่ม + สั่งงาน (owner / manager เท่านั้น) */
.fab{position:fixed;bottom:calc(var(--nav-h) + 24px + env(safe-area-inset-bottom));right:max(16px,calc(50% - 199px));width:56px;height:56px;border-radius:18px;background:var(--brand);color:#fff;border:0;font-size:28px;line-height:1;box-shadow:0 6px 16px #0f766e55;z-index:9}

.offline{background:#fff7ed;color:#9a3412;font-size:13px;text-align:center;padding:6px 12px}
.loading{text-align:center;color:var(--mute);padding:48px 16px;font-size:14px}