:root {
  --bg: #f5f6f4; --card: #fff; --ink: #1d2320; --mut: #5f6b65; --line: #dde2de;
  --brand: #0f5132; --brand-2: #e6f1ea; --red: #b42318; --red-2: #fdecea; --amber: #8a5a00; --amber-2: #fff4dc;
  --radius: 10px;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #121614; --card: #1b201d; --ink: #e7ece9; --mut: #9aa6a0; --line: #2d3531; --brand: #6fcf97; --brand-2: #1e3227;
          --red: #ff8a80; --red-2: #3a1d1b; --amber: #f2c46d; --amber-2: #352a14; }
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body { background: var(--bg); color: var(--ink); font: 15px/1.5 Sarabun, Tahoma, sans-serif; }
a { color: var(--brand); }
button, input, select, textarea { font: inherit; color: inherit; }
.mut { color: var(--mut); } .small { font-size: 13px; } .num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.red { color: var(--red); } .ok { color: var(--brand); }

/* ---------- หัว ---------- */
.top { position: sticky; top: 0; z-index: 5; display: flex; flex-wrap: wrap; align-items: center; gap: 8px 16px;
       padding: 10px 16px; background: var(--card); border-bottom: 1px solid var(--line); }
.brand { margin: 0; font-size: 18px; font-weight: 600; } .brand b { color: var(--brand); } .brand small { color: var(--mut); font-weight: 400; margin-left: 4px; }
.tabs { display: flex; gap: 4px; flex-wrap: wrap; flex: 1; }
.tabs button { border: 0; background: none; padding: 6px 10px; border-radius: 8px; cursor: pointer; color: var(--mut); }
.tabs button[aria-current="page"] { background: var(--brand-2); color: var(--brand); font-weight: 600; }
.me { display: flex; gap: 10px; align-items: center; font-size: 13px; color: var(--mut); }
.me form { margin: 0; }
.link { border: 0; background: none; color: var(--brand); cursor: pointer; padding: 0; text-decoration: underline; }

/* ---------- เนื้อหา ---------- */
.view { max-width: 1180px; margin: 0 auto; padding: 16px; }
h2 { font-size: 20px; margin: 4px 0 12px; } h3 { font-size: 16px; margin: 18px 0 8px; }
.bar { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 12px; }
.bar .grow { flex: 1; }
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; margin-bottom: 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px; }
.card .k { color: var(--mut); font-size: 13px; } .card .v { font-size: 22px; font-weight: 700; font-variant-numeric: tabular-nums; }
.card .s { font-size: 13px; color: var(--mut); }
.card.warn { border-color: var(--amber); background: var(--amber-2); }

.tbl-wrap { overflow-x: auto; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 8px 10px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { font-size: 13px; color: var(--mut); font-weight: 600; background: var(--bg); position: sticky; top: 0; }
tr:last-child td { border-bottom: 0; }
tbody tr.click { cursor: pointer; } tbody tr.click:hover { background: var(--brand-2); }
tr.void td { color: var(--mut); text-decoration: line-through; }
.empty { padding: 18px; text-align: center; color: var(--mut); }
.tag { display: inline-block; padding: 0 8px; border-radius: 99px; font-size: 12px; background: var(--brand-2); color: var(--brand); white-space: nowrap; }
.tag.red { background: var(--red-2); color: var(--red); } .tag.amber { background: var(--amber-2); color: var(--amber); } .tag.grey { background: var(--bg); color: var(--mut); }

/* ---------- ปุ่ม/ฟอร์ม ---------- */
.btn { border: 1px solid var(--brand); background: var(--brand); color: #fff; border-radius: 8px; padding: 7px 14px; cursor: pointer; font-weight: 600; }
.btn.ghost { background: transparent; color: var(--brand); }
.btn.danger { background: transparent; border-color: var(--red); color: var(--red); }
.btn:disabled { opacity: .5; cursor: default; }
@media (prefers-color-scheme: dark) { .btn { color: #0d1410; } .btn.ghost, .btn.danger { color: inherit; } .btn.ghost { color: var(--brand); } .btn.danger { color: var(--red); } }
input, select, textarea { border: 1px solid var(--line); background: var(--card); border-radius: 8px; padding: 7px 9px; min-width: 0; }
textarea { width: 100%; min-height: 60px; }
.f { display: flex; flex-direction: column; gap: 3px; font-size: 13px; color: var(--mut); }
.f input, .f select, .f textarea { font-size: 15px; color: var(--ink); }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 10px; }
.lines td { padding: 4px; } .lines input { width: 100%; } .lines .q { width: 80px; } .lines .p { width: 130px; }
.check { display: flex; gap: 6px; align-items: center; color: var(--ink); font-size: 15px; }
fieldset { border: 1px solid var(--line); border-radius: var(--radius); padding: 10px 12px; margin: 12px 0 0; }
legend { padding: 0 6px; color: var(--mut); font-size: 13px; }
.hidden { display: none !important; }

/* ---------- dialog ---------- */
.dlg { border: 0; border-radius: 14px; padding: 0; width: min(860px, calc(100vw - 24px)); max-height: calc(100vh - 32px);
       background: var(--card); color: var(--ink); box-shadow: 0 10px 40px rgba(0, 0, 0, .25); }
.dlg::backdrop { background: rgba(0, 0, 0, .4); }
.dlg-head { display: flex; justify-content: space-between; align-items: center; gap: 8px; padding: 14px 16px; border-bottom: 1px solid var(--line);
            position: sticky; top: 0; background: var(--card); z-index: 1; }
.dlg-head h2 { margin: 0; font-size: 18px; }
.dlg-body { padding: 14px 16px; }
.dlg-foot { display: flex; justify-content: flex-end; gap: 8px; padding: 12px 16px; border-top: 1px solid var(--line);
            position: sticky; bottom: 0; background: var(--card); }
.msg { padding: 8px 10px; border-radius: 8px; margin: 0 0 10px; }
.msg.err { background: var(--red-2); color: var(--red); }
.kv { display: grid; grid-template-columns: max-content 1fr; gap: 4px 14px; margin: 0 0 10px; }
.kv dt { color: var(--mut); } .kv dd { margin: 0; }
.files { display: flex; flex-wrap: wrap; gap: 8px; }
.files a { display: inline-block; padding: 4px 10px; border: 1px solid var(--line); border-radius: 8px; text-decoration: none; }

.toast { position: fixed; left: 50%; bottom: 20px; transform: translateX(-50%); background: var(--ink); color: var(--card);
         padding: 8px 16px; border-radius: 99px; opacity: 0; pointer-events: none; transition: opacity .2s; max-width: calc(100vw - 32px); }
.toast.on { opacity: 1; } .toast.err { background: var(--red); color: #fff; }

/* ---------- ล็อกอิน ---------- */
body.login { display: grid; place-items: center; min-height: 100vh; padding: 16px; }
.login-box { width: min(380px, 100%); display: flex; flex-direction: column; gap: 12px; }
.login-box h1 { margin: 0; font-size: 22px; }
.login-box p { margin: 0; }
.login-box .f input { padding: 10px; }
.login-box .btn { padding: 10px; }

td:nth-child(-n+2) { white-space: nowrap; } /* วันที่ · เลขที่ ไม่ตัดบรรทัด */

@media (max-width: 640px) {
  .top { position: static; padding: 8px 12px; }
  .tabs { order: 3; flex: 0 0 100%; flex-wrap: nowrap; overflow-x: auto; }
  .tabs button { white-space: nowrap; }
  .view { padding: 12px; }
  th, td { padding: 6px 8px; }
  .hide-sm { display: none; }
}