/* ---------- theme tokens ----------
   light = default; dark applies when the OS is dark (unless the user picked light)
   or when the user picked dark in their profile (html[data-theme]). */
:root {
  color-scheme: light;
  --bg: #f4f6f8;
  --surface: #ffffff;
  --surface-2: #f8fafb;
  --border: #dde3e9;
  --grid: #eef1f4;
  --text: #16191f;
  --muted: #5f6b7a;
  --primary: #0b6bcb;
  --primary-hover: #0958a8;
  --primary-soft: #e6f0fb;
  --danger: #c4282d;
  --danger-soft: #fdecec;
  --success: #1d8102;
  --nav: #16202e;
  --nav-text: #e9eef4;
  --shadow: 0 1px 2px rgba(16,24,40,.06), 0 1px 3px rgba(16,24,40,.08);
  --bucket-bg: #fff3e0; --bucket-fg: #c05a00;
  --folder-bg: #e8f1fe; --folder-fg: #3b82d6;
  /* chart series (validated: adjacent CVD ΔE ≥ 8.4, normal-vision ≥ 19.3) */
  --s1: #2a78d6; --s2: #eb6834; --s3: #1baf7a; --s4: #eda100; --s5: #e87ba4;
  --s-other: #8a94a3;
  /* status (always paired with icon + label) */
  --st-good: #0ca30c; --st-warn: #fab219; --st-serious: #ec835a; --st-crit: #d03b3b;
  --radius: 8px;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #0f141a; --surface: #171e26; --surface-2: #1c242e; --border: #2b3542; --grid: #222b36;
    --text: #e6ebf1; --muted: #94a1b2;
    --primary: #4ea1f3; --primary-hover: #74b6f6; --primary-soft: #1a2c40;
    --danger: #f2686c; --danger-soft: #3a1d20; --success: #6cc04a;
    --nav: #0a0e13; --shadow: 0 1px 2px rgba(0,0,0,.4);
    --bucket-bg: #3b2a14; --bucket-fg: #ffb35c;
    --folder-bg: #1a2c40; --folder-fg: #74b6f6;
    --s1: #3987e5; --s2: #d95926; --s3: #199e70; --s4: #c98500; --s5: #d55181; --s-other: #6b7686;
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0f141a; --surface: #171e26; --surface-2: #1c242e; --border: #2b3542; --grid: #222b36;
  --text: #e6ebf1; --muted: #94a1b2;
  --primary: #4ea1f3; --primary-hover: #74b6f6; --primary-soft: #1a2c40;
  --danger: #f2686c; --danger-soft: #3a1d20; --success: #6cc04a;
  --nav: #0a0e13; --shadow: 0 1px 2px rgba(0,0,0,.4);
  --bucket-bg: #3b2a14; --bucket-fg: #ffb35c;
  --folder-bg: #1a2c40; --folder-fg: #74b6f6;
  --s1: #3987e5; --s2: #d95926; --s3: #199e70; --s4: #c98500; --s5: #d55181; --s-other: #6b7686;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 14px/1.5 "IBM Plex Sans Thai", system-ui, -apple-system, "Segoe UI", sans-serif;
  min-height: 100vh;
}
button, input { font: inherit; color: inherit; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
[hidden] { display: none !important; }

/* top nav */
.topnav {
  background: var(--nav); color: var(--nav-text);
  display: flex; align-items: center; gap: 12px;
  padding: 0 20px; height: 52px; position: sticky; top: 0; z-index: 20;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 600; font-size: 15px; color: var(--nav-text); }
.brand svg { width: 22px; height: 22px; }
.topnav .spacer { flex: 1; }
.topnav .ghost { background: transparent; border: 1px solid #3a4656; color: var(--nav-text); }
.topnav .ghost:hover { background: #222e3d; }

main { max-width: 1280px; margin: 0 auto; padding: 20px; }

/* breadcrumb */
.crumbs { display: flex; gap: 6px; align-items: center; color: var(--muted); margin-bottom: 14px; font-size: 13px; flex-wrap: wrap; }
.crumbs a { color: var(--primary); }
.crumbs .sep { opacity: .6; }

/* cards */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); }
.card-head { display: flex; align-items: center; gap: 10px; padding: 14px 16px; border-bottom: 1px solid var(--border); flex-wrap: wrap; }
.card-head h2 { margin: 0; font-size: 18px; font-weight: 600; }
.card-head .count { color: var(--muted); font-weight: 400; }
.card-head .grow { flex: 1; }
.toolbar { display: flex; gap: 8px; padding: 12px 16px; align-items: center; flex-wrap: wrap; border-bottom: 1px solid var(--border); }

/* stats */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; margin-bottom: 16px; }
.stat { padding: 14px 16px; }
.stat .label { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
.stat .value { font-size: 22px; font-weight: 600; margin-top: 2px; font-variant-numeric: tabular-nums; }

/* buttons */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  border: 1px solid var(--border); background: var(--surface); border-radius: 6px;
  padding: 6px 12px; cursor: pointer; font-weight: 500; white-space: nowrap; height: 34px;
}
.btn:hover:not(:disabled) { background: var(--surface-2); border-color: var(--muted); }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn svg { width: 16px; height: 16px; flex: none; }
.btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn.primary:hover:not(:disabled) { background: var(--primary-hover); border-color: var(--primary-hover); }
.btn.danger { color: var(--danger); }
.btn.danger:hover:not(:disabled) { background: var(--danger-soft); border-color: var(--danger); }
.btn.danger-solid { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn.icon { padding: 6px 8px; }

.search {
  position: relative; flex: 1; min-width: 200px; max-width: 420px;
}
.search input {
  width: 100%; height: 34px; padding: 6px 10px 6px 32px;
  border: 1px solid var(--border); border-radius: 6px; background: var(--surface);
}
.search input:focus, .field input:focus { outline: 2px solid var(--primary); outline-offset: -1px; border-color: var(--primary); }
.search svg { position: absolute; left: 9px; top: 9px; width: 16px; height: 16px; color: var(--muted); }

.chips { display: flex; gap: 6px; flex-wrap: wrap; }
.chip {
  border: 1px solid var(--border); background: var(--surface); border-radius: 999px;
  padding: 2px 10px; font-size: 12px; cursor: pointer; height: 26px;
}
.chip.active { background: var(--primary-soft); border-color: var(--primary); color: var(--primary); font-weight: 500; }

/* table */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 9px 16px; border-bottom: 1px solid var(--border); white-space: nowrap; }
th { font-size: 12px; font-weight: 600; color: var(--muted); background: var(--surface-2); user-select: none; position: sticky; top: 0; }
th.sortable { cursor: pointer; }
th.sortable:hover { color: var(--text); }
th .arrow { opacity: .35; margin-left: 4px; font-size: 10px; }
th.sorted .arrow { opacity: 1; color: var(--primary); }
tbody tr:hover { background: var(--surface-2); }
tbody tr.selected { background: var(--primary-soft); }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
td.name { white-space: normal; word-break: break-all; min-width: 260px; }
td.name .cell { display: flex; align-items: center; gap: 10px; }
td.muted { color: var(--muted); }
.check { width: 40px; padding-right: 0; }
input[type=checkbox] { width: 16px; height: 16px; accent-color: var(--primary); cursor: pointer; vertical-align: middle; }
.ficon {
  width: 30px; height: 30px; border-radius: 6px; flex: none;
  display: grid; place-items: center; font-size: 9px; font-weight: 700; letter-spacing: .02em;
  font-family: var(--mono); text-transform: uppercase;
}
.bucket-icon { background: var(--bucket-bg); color: var(--bucket-fg); }
.folder-icon { background: var(--folder-bg); color: var(--folder-fg); }
tr.folder-row { cursor: pointer; }
.badge { display: inline-block; font-size: 11px; font-weight: 500; padding: 1px 8px; border-radius: 999px; background: var(--surface-2); border: 1px solid var(--border); color: var(--muted); vertical-align: middle; }
.fname { font-family: var(--mono); font-size: 13px; }
.row-actions { display: flex; gap: 4px; justify-content: flex-end; opacity: 0; transition: opacity .1s; }
tr:hover .row-actions, tr:focus-within .row-actions { opacity: 1; }
@media (hover: none) { .row-actions { opacity: 1; } }

.empty { padding: 48px 16px; text-align: center; color: var(--muted); }
.empty svg { width: 42px; height: 42px; opacity: .5; }
.empty h3 { color: var(--text); margin: 8px 0 4px; font-size: 15px; }

.pager { display: flex; align-items: center; justify-content: space-between; padding: 10px 16px; color: var(--muted); font-size: 13px; gap: 8px; flex-wrap: wrap; }
.pager .btns { display: flex; gap: 6px; align-items: center; }

/* login */
.login-wrap { min-height: calc(100vh - 52px); display: grid; place-items: center; padding: 20px; }
.login { width: 100%; max-width: 380px; padding: 28px; }
.login h1 { margin: 0 0 4px; font-size: 20px; }
.login p { margin: 0 0 20px; color: var(--muted); }
.field { display: grid; gap: 6px; margin-bottom: 16px; }
.field label { font-weight: 500; font-size: 13px; }
.field input {
  height: 38px; padding: 6px 10px; border: 1px solid var(--border); border-radius: 6px; background: var(--surface);
}
.field .hint { font-size: 12px; color: var(--muted); }
.error-text { color: var(--danger); font-size: 13px; min-height: 20px; margin-bottom: 8px; }

/* dropzone */
.dropzone {
  border: 2px dashed var(--border); border-radius: var(--radius); margin: 12px 16px; padding: 18px;
  text-align: center; color: var(--muted); transition: all .15s; cursor: pointer;
}
.dropzone:hover { border-color: var(--primary); color: var(--primary); }
body.dragging .dropzone { border-color: var(--primary); background: var(--primary-soft); color: var(--primary); }
.drop-overlay {
  position: fixed; inset: 0; background: rgba(11,107,203,.12); border: 3px dashed var(--primary);
  z-index: 50; display: none; place-items: center; pointer-events: none;
}
.drop-overlay div { background: var(--surface); padding: 16px 24px; border-radius: var(--radius); box-shadow: var(--shadow); font-weight: 600; color: var(--primary); }
body.dragging .drop-overlay { display: grid; }

/* upload panel */
.uploads {
  position: fixed; right: 16px; bottom: 16px; width: 360px; max-width: calc(100vw - 32px);
  z-index: 40; overflow: hidden;
}
.uploads .card-head { padding: 10px 14px; }
.uploads .list { max-height: 260px; overflow-y: auto; }
.up-item { padding: 8px 14px; border-bottom: 1px solid var(--border); font-size: 13px; }
.up-item:last-child { border-bottom: 0; }
.up-item .row { display: flex; justify-content: space-between; gap: 8px; }
.up-item .n { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-family: var(--mono); font-size: 12px; }
.up-item .s { color: var(--muted); flex: none; font-variant-numeric: tabular-nums; }
.up-item .s.ok { color: var(--success); }
.up-item .s.err { color: var(--danger); }
.bar { height: 4px; background: var(--border); border-radius: 2px; margin-top: 6px; overflow: hidden; }
.bar > i { display: block; height: 100%; background: var(--primary); width: 0; transition: width .15s; }

/* modal */
.modal-bg { position: fixed; inset: 0; background: rgba(0,0,0,.45); z-index: 60; display: grid; place-items: center; padding: 16px; }
.modal { width: 100%; max-width: 480px; }
.modal .body { padding: 16px; }
.modal .body p { margin: 0 0 12px; }
.modal .foot { display: flex; justify-content: flex-end; gap: 8px; padding: 12px 16px; border-top: 1px solid var(--border); }
.modal ul { margin: 0 0 12px; padding-left: 20px; max-height: 160px; overflow: auto; font-family: var(--mono); font-size: 12px; }
.warn { background: var(--danger-soft); color: var(--danger); padding: 10px 12px; border-radius: 6px; margin-bottom: 12px; font-size: 13px; }

/* toast */
.toasts { position: fixed; top: 64px; right: 16px; z-index: 70; display: grid; gap: 8px; }
.toast { background: var(--surface); border: 1px solid var(--border); border-left: 4px solid var(--success); padding: 10px 14px; border-radius: 6px; box-shadow: var(--shadow); min-width: 240px; max-width: 360px; }
.toast.err { border-left-color: var(--danger); }

.spinner { width: 18px; height: 18px; border: 2px solid var(--border); border-top-color: var(--primary); border-radius: 50%; animation: spin .7s linear infinite; display: inline-block; vertical-align: middle; }
@keyframes spin { to { transform: rotate(360deg); } }

@media (max-width: 720px) {
  main { padding: 12px; }
  .hide-sm { display: none; }
  th, td { padding: 8px 10px; }
  td.name { min-width: 180px; }
}

/* ---------- nav tabs & user menu ---------- */
.navtabs { display: flex; gap: 2px; margin-left: 16px; }
.navtabs a { color: #b9c4d0; padding: 6px 12px; border-radius: 6px; font-weight: 500; text-decoration: none; }
.navtabs a:hover { color: #fff; background: #222e3d; }
.navtabs a.active { color: #fff; background: #2a3a4f; }
.usermenu { position: relative; }
.userbtn { display: flex; align-items: center; gap: 8px; background: transparent; border: 1px solid #3a4656; color: var(--nav-text); border-radius: 999px; padding: 3px 10px 3px 3px; cursor: pointer; height: 34px; }
.userbtn:hover { background: #222e3d; }
.avatar { width: 26px; height: 26px; border-radius: 50%; background: #3b6ea8; color: #fff; display: grid; place-items: center; font-size: 12px; font-weight: 600; text-transform: uppercase; }
.dropdown { position: absolute; right: 0; top: 42px; width: 260px; background: var(--surface); color: var(--text); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: 0 8px 24px rgba(0,0,0,.18); z-index: 30; overflow: hidden; }
.dropdown .who { padding: 12px 14px; border-bottom: 1px solid var(--border); }
.dropdown .who small { color: var(--muted); display: block; }
.dropdown .item { display: flex; width: 100%; align-items: center; gap: 8px; padding: 9px 14px; background: none; border: 0; text-align: left; cursor: pointer; color: var(--text); text-decoration: none; }
.dropdown .item:hover { background: var(--surface-2); text-decoration: none; }
.dropdown .section { padding: 10px 14px; border-bottom: 1px solid var(--border); }
.dropdown .section > span { font-size: 12px; color: var(--muted); display: block; margin-bottom: 6px; }
.seg { display: inline-flex; border: 1px solid var(--border); border-radius: 6px; overflow: hidden; width: 100%; }
.seg button { flex: 1; white-space: nowrap; border: 0; background: var(--surface); padding: 6px 8px; cursor: pointer; font-size: 13px; border-right: 1px solid var(--border); }
.seg button:last-child { border-right: 0; }
.seg button.on { background: var(--primary-soft); color: var(--primary); font-weight: 600; }
.role { display: inline-block; font-size: 11px; font-weight: 600; padding: 1px 8px; border-radius: 999px; border: 1px solid var(--border); text-transform: uppercase; letter-spacing: .03em; }
.role.admin { color: var(--danger); border-color: currentColor; }
.role.editor { color: var(--primary); border-color: currentColor; }
.role.viewer { color: var(--muted); }

/* ---------- page header ---------- */
.page-head { display: flex; align-items: flex-end; gap: 12px; margin-bottom: 16px; flex-wrap: wrap; }
.page-head h1 { margin: 0; font-size: 22px; font-weight: 600; }
.page-head .sub { color: var(--muted); font-size: 13px; }
.page-head .grow { flex: 1; }

/* ---------- dashboard ---------- */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 900px) { .grid-2 { grid-template-columns: 1fr; } }
.section-gap { margin-bottom: 16px; }
.alert { display: flex; gap: 10px; align-items: flex-start; padding: 12px 14px; border-radius: var(--radius); border: 1px solid; margin-bottom: 16px; }
.alert.al-warn { background: color-mix(in srgb, var(--st-warn) 12%, var(--surface)); border-color: color-mix(in srgb, var(--st-warn) 55%, var(--border)); }
.alert.al-crit { background: color-mix(in srgb, var(--st-crit) 10%, var(--surface)); border-color: color-mix(in srgb, var(--st-crit) 50%, var(--border)); }
.alert.al-ok { background: color-mix(in srgb, var(--st-good) 10%, var(--surface)); border-color: color-mix(in srgb, var(--st-good) 45%, var(--border)); }
.stat .delta { font-size: 12px; color: var(--muted); margin-top: 2px; }
.meter { height: 8px; border-radius: 4px; background: color-mix(in srgb, var(--s1) 18%, var(--surface)); overflow: hidden; margin-top: 8px; }
.meter > i { display: block; height: 100%; border-radius: 4px; background: var(--s1); }
.meter.warn > i { background: var(--st-warn); }
.meter.crit > i { background: var(--st-crit); }
.status { display: inline-flex; align-items: center; gap: 6px; font-weight: 500; font-size: 13px; }
.status svg { width: 16px; height: 16px; flex: none; }
.status.ok svg { color: var(--st-good); }
.status.warning svg { color: var(--st-warn); }
.status.critical svg { color: var(--st-crit); }
.status.empty svg { color: var(--muted); }
.chart-wrap { padding: 8px 16px 16px; position: relative; }
.chart-wrap svg { display: block; width: 100%; height: auto; overflow: visible; }
.chart-wrap .axis text { fill: var(--muted); font-size: 11px; }
.chart-wrap .gridline { stroke: var(--grid); stroke-width: 1; }
.chart-wrap .baseline { stroke: var(--border); stroke-width: 1; }
.legend { display: flex; flex-wrap: wrap; gap: 6px 16px; padding: 12px 16px 0; font-size: 12px; color: var(--muted); }
.legend span { display: inline-flex; align-items: center; gap: 6px; }
.legend i { width: 10px; height: 10px; border-radius: 3px; display: inline-block; }
.tooltip { position: absolute; pointer-events: none; background: var(--surface); border: 1px solid var(--border); border-radius: 6px; box-shadow: 0 6px 18px rgba(0,0,0,.16); padding: 8px 10px; font-size: 12px; min-width: 170px; z-index: 5; }
.tooltip .t { font-weight: 600; margin-bottom: 4px; }
.tooltip .r { display: flex; justify-content: space-between; gap: 12px; }
.tooltip .r span:first-child { display: inline-flex; align-items: center; gap: 6px; color: var(--muted); }
.tooltip .r i { width: 8px; height: 8px; border-radius: 2px; display: inline-block; }
.tooltip .tot { border-top: 1px solid var(--border); margin-top: 4px; padding-top: 4px; font-weight: 600; }
.mini-list { list-style: none; margin: 0; padding: 0; }
.mini-list li { display: flex; gap: 10px; align-items: center; padding: 9px 16px; border-bottom: 1px solid var(--border); }
.mini-list li:last-child { border-bottom: 0; }
.mini-list .main { flex: 1; min-width: 0; }
.mini-list .main a, .mini-list .main div { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.mini-list .sub { color: var(--muted); font-size: 12px; }
.mini-list .right { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; font-size: 13px; }
.linkbtn { background: none; border: 0; color: var(--primary); cursor: pointer; padding: 0; font-size: 13px; }

/* ---------- forms / profile ---------- */
.form-card { max-width: 560px; padding: 20px; margin-bottom: 16px; }
.form-card h2 { margin: 0 0 4px; font-size: 16px; }
.form-card > p { margin: 0 0 16px; color: var(--muted); font-size: 13px; }
.field select { height: 38px; padding: 6px 10px; border: 1px solid var(--border); border-radius: 6px; background: var(--surface); font: inherit; color: inherit; }
.theme-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.theme-card { border: 2px solid var(--border); border-radius: var(--radius); padding: 8px; cursor: pointer; background: var(--surface); text-align: center; font-weight: 500; }
.theme-card.on { border-color: var(--primary); }
.theme-card .pv { height: 56px; border-radius: 6px; margin-bottom: 6px; display: grid; grid-template-rows: 12px 1fr; overflow: hidden; border: 1px solid var(--border); }
.pv.light { background: #f4f6f8; } .pv.light b { background: #16202e; } .pv.light u { margin: 6px; background: #fff; border-radius: 3px; }
.pv.dark { background: #0f141a; } .pv.dark b { background: #0a0e13; } .pv.dark u { margin: 6px; background: #171e26; border-radius: 3px; }
.pv.system { background: linear-gradient(90deg, #f4f6f8 50%, #0f141a 50%); } .pv.system b { background: #16202e; } .pv.system u { margin: 6px; background: linear-gradient(90deg, #fff 50%, #171e26 50%); border-radius: 3px; }
.row-inline { display: flex; gap: 8px; flex-wrap: wrap; }
.muted { color: var(--muted); }
.ok-text { color: var(--success); font-size: 13px; min-height: 20px; }
.tag-off { color: var(--danger); font-size: 12px; }
@media (max-width: 720px) {
  .navtabs { margin-left: 4px; }
  .navtabs a { padding: 6px 8px; font-size: 13px; }
  .brand span { display: none; }
  .userbtn .uname { display: none; }
}
td select { height: 32px; padding: 4px 8px; border: 1px solid var(--border); border-radius: 6px; background: var(--surface); color: var(--text); font: inherit; cursor: pointer; }
td select:disabled { opacity: .6; cursor: not-allowed; }

/* ---------- API tokens ---------- */
.chiplist { display: flex; flex-wrap: wrap; gap: 4px; }
.perm { display: inline-block; font-size: 11px; font-weight: 600; padding: 1px 8px; border-radius: 999px; border: 1px solid currentColor; }
.perm.upload { color: var(--primary); }
.perm.read { color: var(--success); }
tr.inactive td { opacity: .55; }
.checks { display: grid; gap: 6px; max-height: 180px; overflow: auto; border: 1px solid var(--border); border-radius: 6px; padding: 8px 10px; }
.checks label { display: flex; align-items: center; gap: 8px; font-weight: 400; cursor: pointer; }
.secret { display: flex; gap: 8px; }
.secret code { flex: 1; font-family: var(--mono); font-size: 12px; background: var(--surface-2); border: 1px solid var(--border); border-radius: 6px; padding: 8px 10px; word-break: break-all; user-select: all; }
pre.example { font-family: var(--mono); font-size: 11.5px; background: var(--surface-2); border: 1px solid var(--border); border-radius: 6px; padding: 10px; white-space: pre-wrap; word-break: break-all; margin: 8px 0 0; }
code { font-family: var(--mono); font-size: .9em; }
.alert > .status { padding-top: 2px; }