/* ===== Tokens ===== */
:root {
  --bg: #f4f6fb;
  --surface: #ffffff;
  --surface-2: #f8fafc;
  --text: #0f172a;
  --text-2: #475569;
  --muted: #64748b;
  --line: #e2e8f0;
  --line-strong: #cbd5e1;
  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --primary-soft: #eef2ff;
  --primary-text: #4338ca;
  --ok: #059669;   --ok-soft: #ecfdf5;
  --err: #dc2626;  --err-soft: #fef2f2;
  --warn: #b45309; --warn-soft: #fffbeb;
  --info: #2563eb; --info-soft: #eff6ff;
  --shadow: 0 1px 2px rgba(15, 23, 42, .04), 0 4px 16px rgba(15, 23, 42, .05);
  --shadow-lg: 0 10px 40px rgba(15, 23, 42, .12);
  --radius: 14px;
  --radius-sm: 9px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1020;
    --surface: #131a2e;
    --surface-2: #182038;
    --text: #e6e9f2;
    --text-2: #b6bfd3;
    --muted: #8a94ad;
    --line: #232c45;
    --line-strong: #334063;
    --primary: #6d6af7;
    --primary-hover: #8280ff;
    --primary-soft: #1f2250;
    --primary-text: #a5a8ff;
    --ok: #34d399;   --ok-soft: #0f2a24;
    --err: #f87171;  --err-soft: #2e1519;
    --warn: #fbbf24; --warn-soft: #2b2310;
    --info: #60a5fa; --info-soft: #132443;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 4px 16px rgba(0, 0, 0, .25);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, .5);
    color-scheme: dark;
  }
}

/* ===== Base ===== */
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 15px/1.6 "Noto Sans Thai", "Sukhumvit Set", -apple-system, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--primary-text); text-decoration: none; }
a:hover { text-decoration: underline; }
svg.ic { width: 18px; height: 18px; flex: none; stroke: currentColor; fill: none; stroke-width: 2;
         stroke-linecap: round; stroke-linejoin: round; vertical-align: -3px; }
.hidden { display: none !important; }
main { max-width: 1120px; margin: 0 auto; padding: 28px 20px 72px; }

/* ===== Top bar ===== */
.topbar { position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--surface) 88%, transparent);
          backdrop-filter: saturate(160%) blur(10px); border-bottom: 1px solid var(--line); }
.topbar .in { max-width: 1120px; margin: 0 auto; padding: 10px 20px; display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; color: var(--text); margin-right: 18px; }
.brand:hover { text-decoration: none; }
.logo { width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center; color: #fff;
        background: linear-gradient(135deg, #6366f1, #8b5cf6 60%, #ec4899); box-shadow: 0 4px 12px rgba(99, 102, 241, .35); }
.logo svg.ic { width: 19px; height: 19px; }
.brand small { display: block; font-size: 11px; font-weight: 500; color: var(--muted); line-height: 1.1; }
.nav a { display: inline-flex; align-items: center; gap: 7px; padding: 7px 12px; border-radius: 9px;
         color: var(--text-2); font-size: 14px; font-weight: 500; }
.nav a:hover { background: var(--surface-2); text-decoration: none; color: var(--text); }
.nav a.active { background: var(--primary-soft); color: var(--primary-text); }
.spacer { flex: 1; }
.me { display: flex; align-items: center; gap: 10px; padding: 4px 6px 4px 4px; }
.avatar { width: 34px; height: 34px; border-radius: 50%; display: grid; place-items: center; font-weight: 700; font-size: 14px;
          color: var(--primary-text); background: var(--primary-soft); }
.me .who { line-height: 1.25; font-size: 13.5px; font-weight: 600; }
.me .who span { display: block; font-size: 12px; font-weight: 400; color: var(--muted); }
.icon-btn { width: 36px; height: 36px; padding: 0; display: inline-grid; place-items: center; border-radius: 9px;
            background: transparent; color: var(--text-2); border: 1px solid transparent; }
.icon-btn:hover { background: var(--surface-2); border-color: var(--line); color: var(--text); }

/* ===== Page header ===== */
.page-head { display: flex; align-items: flex-end; gap: 16px; flex-wrap: wrap; margin-bottom: 22px; }
.page-head h1 { font-size: 26px; line-height: 1.25; margin: 0; letter-spacing: -.01em; }
.page-head p { margin: 4px 0 0; color: var(--muted); }

/* ===== Cards ===== */
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
        box-shadow: var(--shadow); padding: 22px 24px; margin-bottom: 18px; }
.card-head { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 16px; }
.card-head h2 { font-size: 17px; margin: 0; line-height: 1.3; }
.card-head p { margin: 2px 0 0; color: var(--muted); font-size: 13.5px; }
.card-head > div:not(.end) { flex: 1 1 220px; min-width: 0; }
.card-head .end { margin-left: auto; display: flex; gap: 8px; align-items: center; }
.step { width: 34px; height: 34px; flex: none; border-radius: 10px; display: grid; place-items: center;
        font-weight: 700; font-size: 15px; color: var(--primary-text); background: var(--primary-soft); transition: .2s; }
.card.done .step { background: var(--ok); color: #fff; }
.card.done .step .num { display: none; }
.card:not(.done) .step .chk { display: none; }

/* ===== Forms ===== */
label { font-size: 12.5px; font-weight: 500; color: var(--text-2); display: block; margin-bottom: 5px; }
input, select {
  width: 100%; height: 40px; padding: 0 12px; border: 1px solid var(--line-strong); border-radius: var(--radius-sm);
  font: inherit; font-size: 14.5px; color: var(--text); background: var(--surface); transition: border-color .15s, box-shadow .15s;
}
input:focus, select:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 22%, transparent); }
input:disabled, select:disabled { opacity: .55; }
input[type=checkbox] { width: 17px; height: 17px; padding: 0; accent-color: var(--primary); cursor: pointer; vertical-align: middle; }
.check { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; color: var(--text); margin: 0; cursor: pointer; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 14px; }

/* ===== Buttons ===== */
button, .btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px; height: 40px; padding: 0 16px;
  border: 1px solid transparent; border-radius: var(--radius-sm); font: inherit; font-size: 14.5px; font-weight: 600;
  cursor: pointer; background: var(--primary); color: #fff; transition: background .15s, border-color .15s, transform .05s;
  white-space: nowrap;
}
button:hover { background: var(--primary-hover); }
button:active { transform: translateY(1px); }
button.secondary { background: var(--surface); color: var(--text); border-color: var(--line-strong); }
button.secondary:hover { background: var(--surface-2); }
button.ghost { background: transparent; color: var(--text-2); }
button.ghost:hover { background: var(--surface-2); color: var(--text); }
button.danger { background: var(--err-soft); color: var(--err); }
button.danger:hover { background: var(--err); color: #fff; }
button.small { height: 32px; padding: 0 11px; font-size: 13px; border-radius: 8px; }
button.small svg.ic { width: 15px; height: 15px; }
button.big { height: 46px; padding: 0 24px; font-size: 15.5px; }
button:disabled { opacity: .5; cursor: default; transform: none; }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-top: 16px; }

/* ===== Messages ===== */
.msg { font-size: 14px; display: inline-flex; align-items: center; gap: 6px; }
.msg:empty { display: none; }
.msg.ok { color: var(--ok); } .msg.err { color: var(--err); }
.callout { display: flex; gap: 12px; padding: 13px 15px; border-radius: 11px; font-size: 13.5px; line-height: 1.65;
           background: var(--warn-soft); color: var(--text-2); margin-top: 16px; }
.callout svg.ic { color: var(--warn); margin-top: 2px; }
.callout b { color: var(--text); }

/* ===== Tables ===== */
.tbl-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 11px; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 11px 14px; border-bottom: 1px solid var(--line); vertical-align: middle; }
thead th { background: var(--surface-2); font-size: 12px; font-weight: 600; color: var(--muted); white-space: nowrap;
           text-transform: none; letter-spacing: .01em; }
tbody tr:last-child td { border-bottom: 0; }
tbody tr:hover td { background: color-mix(in srgb, var(--surface-2) 70%, transparent); }
tbody tr.selected td { background: color-mix(in srgb, var(--primary-soft) 60%, transparent); }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
td.actions { white-space: nowrap; text-align: right; }
td.actions button { margin-left: 4px; }
td input:not([type=checkbox]), td select { height: 34px; font-size: 14px; }
th.w-check, td.w-check { width: 44px; padding-right: 0; }
.mono { font-family: ui-monospace, "SF Mono", Menlo, monospace; font-size: 13px; }
.sub { display: block; font-size: 12.5px; color: var(--muted); }
.muted { color: var(--muted); }
.empty { text-align: center; padding: 34px 16px !important; color: var(--muted); }
.empty svg.ic { width: 30px; height: 30px; display: block; margin: 0 auto 8px; opacity: .6; }

/* ===== Pills / badges ===== */
.pill { display: inline-flex; align-items: center; gap: 5px; padding: 2px 10px; border-radius: 999px; font-size: 12.5px;
        font-weight: 600; white-space: nowrap; background: var(--surface-2); color: var(--text-2); border: 1px solid var(--line); }
.pill svg.ic { width: 13px; height: 13px; stroke-width: 2.5; }
.pill.ok { background: var(--ok-soft); color: var(--ok); border-color: transparent; }
.pill.err { background: var(--err-soft); color: var(--err); border-color: transparent; }
.pill.run { background: var(--info-soft); color: var(--info); border-color: transparent; }
.pill.warn { background: var(--warn-soft); color: var(--warn); border-color: transparent; }
.pill.violet { background: var(--primary-soft); color: var(--primary-text); border-color: transparent; }
.pill.replace { background: var(--err-soft); color: var(--err); border-color: transparent; }
.note { display: block; font-size: 12.5px; margin-top: 4px; line-height: 1.5; }
.note.warn { color: var(--warn); } .note.err { color: var(--err); }
.spin { width: 12px; height: 12px; border-radius: 50%; border: 2px solid currentColor; border-right-color: transparent;
        animation: spin .7s linear infinite; display: inline-block; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ===== Mode select ===== */
select.mode-replace { border-color: color-mix(in srgb, var(--err) 55%, transparent); color: var(--err); background: var(--err-soft); }

/* ===== Progress ===== */
.bar { height: 8px; background: var(--surface-2); border: 1px solid var(--line); border-radius: 99px; overflow: hidden; min-width: 120px; }
.bar > i { display: block; height: 100%; width: 0; border-radius: 99px; background: var(--primary); transition: width .4s ease; }
.bar.running > i { background-image: linear-gradient(45deg, rgba(255,255,255,.22) 25%, transparent 25%, transparent 50%,
                   rgba(255,255,255,.22) 50%, rgba(255,255,255,.22) 75%, transparent 75%); background-size: 16px 16px;
                   animation: stripes .8s linear infinite; }
.bar.ok > i { background: var(--ok); } .bar.err > i { background: var(--err); }
@keyframes stripes { to { background-position: 16px 0; } }
.result-group { border: 1px solid var(--line); border-radius: 12px; margin-top: 14px; overflow: hidden; }
.result-group header { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; padding: 12px 16px; background: var(--surface-2);
                       border-bottom: 1px solid var(--line); }
.result-group header b { font-size: 15px; }
.result-group header .sub { display: inline; }
.result-group .tbl-wrap { border: 0; border-radius: 0; }
.result-group > .note { padding: 10px 16px 0; margin: 0; }

/* ===== Drop zone ===== */
.drop { border: 2px dashed var(--line-strong); border-radius: 14px; padding: 34px 20px; text-align: center; cursor: pointer;
        background: var(--surface-2); transition: .2s; color: var(--muted); }
.drop:hover, .drop.over { border-color: var(--primary); background: var(--primary-soft); }
.drop .drop-ic { width: 54px; height: 54px; margin: 0 auto 12px; border-radius: 14px; display: grid; place-items: center;
                 background: var(--surface); color: var(--primary); box-shadow: var(--shadow); }
.drop .drop-ic svg.ic { width: 26px; height: 26px; }
.drop strong { display: block; color: var(--text); font-size: 15.5px; margin-bottom: 2px; }
.drop.busy { pointer-events: none; opacity: .7; }
.file-chip { display: flex; align-items: center; gap: 12px; padding: 12px 14px; border: 1px solid var(--line);
             border-radius: 12px; margin-top: 14px; background: var(--surface); }
.file-chip .fi { width: 38px; height: 38px; border-radius: 10px; display: grid; place-items: center; background: var(--ok-soft); color: var(--ok); }
.file-chip b { display: block; font-size: 14.5px; }

/* ===== Toolbar ===== */
.toolbar { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-bottom: 14px; }
.toolbar .label { font-size: 13px; color: var(--muted); margin-right: 2px; }
.toolbar .end { margin-left: auto; }

/* ===== Tabs (admin) ===== */
.tabs { display: flex; gap: 4px; padding: 4px; background: var(--surface); border: 1px solid var(--line); border-radius: 12px;
        margin-bottom: 18px; overflow-x: auto; box-shadow: var(--shadow); }
.tabs button { background: transparent; color: var(--text-2); height: 38px; font-weight: 600; border-radius: 9px; }
.tabs button:hover { background: var(--surface-2); color: var(--text); }
.tabs button.active { background: var(--primary); color: #fff; box-shadow: 0 2px 8px color-mix(in srgb, var(--primary) 40%, transparent); }
.tabs .count { font-size: 11.5px; padding: 0 7px; border-radius: 99px; background: color-mix(in srgb, currentColor 16%, transparent); }

/* ===== Editor panel ===== */
.editor { margin-top: 16px; padding: 18px; border: 1px solid color-mix(in srgb, var(--primary) 35%, var(--line));
          border-radius: 12px; background: color-mix(in srgb, var(--primary-soft) 45%, var(--surface)); }
.editor h3 { margin: 0 0 14px; font-size: 15px; display: flex; align-items: center; gap: 8px; }

/* ===== Stats ===== */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 14px; margin-bottom: 18px; }
.stat { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 18px;
        box-shadow: var(--shadow); display: flex; gap: 14px; align-items: center; }
.stat .si { width: 42px; height: 42px; border-radius: 12px; display: grid; place-items: center; background: var(--primary-soft); color: var(--primary-text); }
.stat b { display: block; font-size: 22px; line-height: 1.2; font-variant-numeric: tabular-nums; }
.stat span { font-size: 13px; color: var(--muted); }

/* ===== Dialog ===== */
dialog { border: 1px solid var(--line); border-radius: 16px; padding: 24px; width: min(400px, 92vw); background: var(--surface);
         color: var(--text); box-shadow: var(--shadow-lg); }
dialog::backdrop { background: rgba(15, 23, 42, .45); backdrop-filter: blur(2px); }
dialog h3 { margin: 0 0 16px; font-size: 18px; display: flex; gap: 10px; align-items: center; }
dialog .grid { grid-template-columns: 1fr; }

/* ===== Login ===== */
.login-page { min-height: 100vh; display: grid; place-items: center; padding: 24px 16px;
  background:
    radial-gradient(1000px 520px at 10% -10%, color-mix(in srgb, #6366f1 28%, transparent), transparent 60%),
    radial-gradient(900px 520px at 110% 110%, color-mix(in srgb, #ec4899 20%, transparent), transparent 60%),
    var(--bg); }
.login-card { width: min(410px, 100%); background: var(--surface); border: 1px solid var(--line); border-radius: 20px;
              padding: 34px 30px 28px; box-shadow: var(--shadow-lg); }
.login-card .logo { width: 52px; height: 52px; border-radius: 15px; margin-bottom: 18px; }
.login-card .logo svg.ic { width: 27px; height: 27px; }
.login-card h1 { font-size: 23px; margin: 0; line-height: 1.3; }
.login-card > p { margin: 6px 0 24px; color: var(--muted); font-size: 14px; }
.login-card .grid { grid-template-columns: 1fr; gap: 16px; }
.login-card input { height: 46px; font-size: 15px; }
.login-card button[type=submit] { width: 100%; height: 48px; margin-top: 22px; font-size: 16px; }
.login-card .alert { margin-top: 14px; padding: 10px 13px; border-radius: 10px; background: var(--err-soft); color: var(--err); font-size: 14px; }
.login-card .alert:empty { display: none; }
.login-foot { text-align: center; margin-top: 18px; font-size: 12.5px; color: var(--muted); }
.pw-wrap { position: relative; }
.pw-wrap input { padding-right: 46px; }
.pw-wrap .icon-btn { position: absolute; right: 5px; top: 50%; transform: translateY(-50%); width: 36px; height: 36px; }

/* ===== Responsive ===== */
@media (max-width: 720px) {
  main { padding: 20px 14px 56px; }
  .card { padding: 18px 16px; }
  .page-head h1 { font-size: 22px; }
  .me .who { display: none; }
  .brand { margin-right: 6px; }
  .brand small { display: none; }
  .nav a span.t { display: none; }
  .stats { grid-template-columns: repeat(3, 1fr); gap: 8px; }
  .stat { padding: 12px; gap: 0; }
  .stat .si { display: none; }
  .stat b { font-size: 20px; }
  .stat span { font-size: 12px; }
}
@media (max-width: 520px) {
  .topbar .in { padding: 8px 12px; gap: 2px; flex-wrap: nowrap; }
  .brand > span:last-child { display: none; }
  .me { padding: 0 2px; }
}