:root {
  color-scheme: light;
  --bg: #F4F5F6;
  --rail: #E8EBED;
  --card: #FFFFFF;
  --ink: #1F2328;
  --muted: #555E67;
  --rule: #CCD2D8;
  --blue: #1F5FBF;
  --ember: #D9570B;
  --ember-ink: #9A3B00;
  --ember-wash: #FCECDF;
  --danger: #B3261E;
  --danger-wash: #FBE9E7;
  --ok: #2A7A1E;
  --on-c: #FFFFFF;
  --cn: #5B6670;
  --c1: #0F8576; --c2: #D9570B; --c3: #1F5FBF; --c4: #7B4BC4;
  --c5: #C03A76; --c6: #3A8A2C; --c7: #A36A00; --c8: #4A5560;
  --display: "Barlow Condensed", "Arial Narrow", "Helvetica Neue", Arial, sans-serif;
  --text: "Public Sans", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  box-sizing: border-box;
  padding-top: env(safe-area-inset-top, 0px);
  padding-bottom: env(safe-area-inset-bottom, 0px);
}
@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --bg: #14171A; --rail: #1B1F23; --card: #1B1F23; --ink: #E8EBEE; --muted: #9CA5AE;
    --rule: #333A41; --blue: #7FB0FF; --ember: #FF8C42; --ember-ink: #FFB98A; --ember-wash: #2E2016;
    --danger: #FF8A80; --danger-wash: #2E1A18; --ok: #7BD06A; --on-c: #14171A; --cn: #AEB8C2;
    --c1: #3CC7B4; --c2: #FF8C42; --c3: #7FB0FF; --c4: #B79AF2;
    --c5: #F27FB1; --c6: #7BD06A; --c7: #F0B84A; --c8: #AEB8C2;
  }
}
html { scroll-padding-top: env(safe-area-inset-top, 0px); }
*, *::before, *::after { box-sizing: inherit; }
[hidden] { display: none !important; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 400 1rem/1.55 var(--text); -webkit-text-size-adjust: 100%; }
body::before { content: ""; position: fixed; inset: 0 0 auto; height: env(safe-area-inset-top, 0px); background: var(--rail); z-index: 10; }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 2px; }
a { color: var(--blue); }
code { font: 500 .9em ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; background: var(--rail); padding: 1px 6px; border-radius: 4px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* Buttons */
.btn {
  display: inline-block; padding: 10px 18px; border: 2px solid var(--ink); border-radius: 8px;
  background: var(--ink); color: var(--bg); font: 600 1rem/1.2 var(--text); text-decoration: none; cursor: pointer;
}
.btn:hover { filter: brightness(1.12); }
.btn[disabled] { opacity: .55; cursor: not-allowed; filter: none; }
.btn.ghost { background: transparent; color: var(--ink); border-color: var(--rule); }
.btn.ghost:hover { border-color: var(--ink); filter: none; }
.btn.small { padding: 6px 12px; font-size: .9rem; }
.link-btn { background: none; border: 0; padding: 0; color: var(--blue); font: inherit; text-decoration: underline; cursor: pointer; }

/* Forms */
label, .label { display: block; margin: 0 0 4px; font-weight: 600; font-size: .95rem; }
input[type="text"], input[type="search"], select, textarea {
  width: 100%; font: inherit; padding: 10px 12px; border: 1.5px solid var(--rule); border-radius: 8px;
  background: var(--card); color: var(--ink);
}
textarea { resize: vertical; }
input::placeholder, textarea::placeholder { color: var(--muted); }
.field { margin: 0 0 18px; }
.field.grow { flex: 1 1 14rem; }
.grid2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 16px; }
.form-error { margin: 8px 0 0; padding: 8px 12px; border-left: 5px solid var(--danger); border-radius: 0 8px 8px 0; background: var(--danger-wash); font-weight: 500; }
.notice { margin: 12px 0; padding: 10px 14px; border-left: 5px solid var(--ember); border-radius: 0 8px 8px 0; background: var(--ember-wash); color: var(--ember-ink); font-weight: 500; }
.hint { color: var(--muted); font-size: .9rem; }

/* Sign in */
.signin { min-height: 100vh; display: grid; place-items: center; padding: 24px 16px; }
.signin-card { width: 100%; max-width: 27rem; padding: 32px 28px; border: 2px solid var(--ink); border-radius: 12px; background: var(--card); border-top: 8px solid var(--ember); }
.signin-card h1 { margin: 2px 0 10px; font: 700 3.4rem/.95 var(--display); }
.signin-card .lede { margin: 0 0 22px; }
.signin-card input { font-size: 1.15rem; letter-spacing: .08em; text-transform: uppercase; }
.signin-card .btn { margin-top: 16px; width: 100%; }
.brand { margin: 0; font: 700 1.6rem/1.05 var(--display); letter-spacing: .01em; }

/* Shell */
.shell { display: grid; grid-template-columns: 250px minmax(0, 1fr); max-width: 1340px; margin: 0 auto; min-height: 100vh; }
.rail {
  position: sticky; top: env(safe-area-inset-top, 0px); align-self: start;
  height: calc(100vh - env(safe-area-inset-top, 0px)); display: flex; flex-direction: column;
  padding: 22px 16px; background: var(--rail); border-right: 1px solid var(--rule);
}
.brand-sub { margin: 2px 0 0; font-size: .85rem; color: var(--muted); }
.nav { margin: 26px 0 0; display: flex; flex-direction: column; gap: 4px; }
.nav-link {
  padding: 9px 12px; border-left: 5px solid transparent; border-radius: 0 8px 8px 0;
  color: var(--ink); text-decoration: none; font-weight: 500;
}
.nav-link:hover { background: var(--bg); }
.nav-link.active { border-left-color: var(--ember); background: var(--bg); font-weight: 700; }
.who { margin-top: auto; padding-top: 14px; border-top: 1px solid var(--rule); }
.who-name { margin: 0; font-weight: 600; }
.who-role { margin: 0 0 10px; color: var(--muted); font-size: .9rem; }
.main { padding: 40px 44px 96px; min-width: 0; }
.view { max-width: 62rem; }
.view-head { display: flex; align-items: baseline; gap: 16px; flex-wrap: wrap; margin-bottom: 20px; }
.view-head h1 { margin: 0; font: 700 clamp(2.4rem, 5vw, 3.2rem)/1 var(--display); }
.count { margin: 0; color: var(--muted); }

/* ID chip: SOP | FUNCTION | TYPE | number. The function segment carries the function's color. */
.idchip { display: inline-flex; align-items: stretch; border: 2px solid var(--ink); border-radius: 6px; overflow: hidden; font: 700 1.05rem/1 var(--display); letter-spacing: .03em; white-space: nowrap; }
.idchip span { padding: 4px 8px; }
.idchip .seg-sop { color: var(--muted); }
.idchip .seg-fn { background: var(--c, var(--cn)); color: var(--on-c); }
.idchip .seg-num { border-left: 2px solid var(--ink); }
.idchip.big { font-size: 2.1rem; }
.idchip.big span { padding: 6px 14px; }
.idchip.pending .seg-num { color: var(--muted); }

/* Library */
.filters { display: flex; flex-wrap: wrap; gap: 0 14px; padding-bottom: 6px; }
.filters .field { margin-bottom: 12px; min-width: 9rem; }
.rows { list-style: none; margin: 8px 0 0; padding: 0; border-top: 1px solid var(--rule); }
.row {
  display: grid; grid-template-columns: 10.5rem minmax(0, 1fr) auto; gap: 8px 18px; align-items: center;
  padding: 14px 4px; border-bottom: 1px solid var(--rule);
}
.row-id { grid-row: span 2; align-self: start; padding-top: 2px; }
.row-title { margin: 0; font-weight: 600; font-size: 1.08rem; line-height: 1.3; }
.row-title a { color: var(--ink); text-decoration-color: var(--rule); text-underline-offset: 3px; }
.row-title a:hover { text-decoration-color: var(--ink); }
.row-meta { margin: 0; display: flex; flex-wrap: wrap; gap: 2px 16px; color: var(--muted); font-size: .92rem; }
.row-side { grid-row: span 2; grid-column: 3; display: flex; flex-direction: column; align-items: flex-end; gap: 8px; }
.row-state { display: flex; align-items: center; gap: 10px; }
.ver { font: 600 1.05rem/1 var(--display); }
.pill { padding: 2px 10px; border: 1.5px solid var(--ink); border-radius: 999px; font-size: .82rem; font-weight: 600; white-space: nowrap; }
.pill.s-draft { border-style: dashed; border-color: var(--ember); color: var(--ember-ink); }
.pill.s-documented { border-color: var(--blue); color: var(--blue); }
.pill.s-trained { border-color: var(--c1); color: var(--c1); }
.pill.s-fbad { background: var(--ok); border-color: var(--ok); color: var(--on-c); }
.pill.s-retired { border-color: var(--muted); color: var(--muted); }
.pill.s-uploadfailed { border-color: var(--danger); background: var(--danger-wash); color: var(--danger); }
.row-actions { display: flex; gap: 8px; }
.empty { margin-top: 28px; padding: 28px; border: 2px dashed var(--rule); border-radius: 12px; max-width: 34rem; }
.empty h2 { margin: 0 0 6px; font: 700 1.9rem/1.05 var(--display); }
.empty p { margin: 0 0 14px; }

/* Approval pills and library extras */
.pill.a-approved { background: var(--ok); border-color: var(--ok); color: var(--on-c); }
.pill.a-pending, .pill.a-duesoon { border-style: dashed; border-color: var(--ember); color: var(--ember-ink); }
.pill.a-reviewdue, .pill.a-checkapprovers { border-color: var(--danger); background: var(--danger-wash); color: var(--danger); }
.pill.a-notstarted, .pill.a-noapproversset { border-color: var(--muted); color: var(--muted); }
.row-approval { margin: 0; font-size: .9rem; color: var(--muted); }
.row-nolink { margin: 0; font-size: .9rem; color: var(--muted); }
.lede { margin: 0 0 22px; max-width: 40rem; }
.view > .lede { color: var(--muted); }

/* Upload */
.form, .done { max-width: 40rem; }
.modes { display: grid; gap: 8px; margin: 0 0 24px; padding: 0; border: 0; }
.mode { display: flex; gap: 12px; align-items: center; margin: 0; padding: 12px 14px; border: 1.5px solid var(--rule); border-radius: 8px; background: var(--card); font-weight: 500; cursor: pointer; }
.mode:has(input:checked) { border-color: var(--ink); background: var(--bg); box-shadow: inset 5px 0 0 var(--ember); }
.mode input { width: 1.2rem; height: 1.2rem; accent-color: var(--ember); }
.idbox { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 14px; margin: 4px 0 22px; padding: 14px 16px; border-left: 5px solid var(--ember); border-radius: 0 8px 8px 0; background: var(--ember-wash); }
.idbox-label { font-weight: 600; color: var(--ember-ink); }
.idbox-note { flex-basis: 100%; font-size: .9rem; color: var(--ember-ink); }
.drop { padding: 22px; border: 2px dashed var(--muted); border-radius: 12px; background: var(--card); text-align: left; }
.drop.over { border-color: var(--ember); border-style: solid; background: var(--ember-wash); }
.drop-main { margin: 0 0 4px; font: 700 1.7rem/1.05 var(--display); }
.drop-sub { margin: 0 0 14px; color: var(--muted); font-size: .95rem; }
.drop-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.filebox { margin-top: 12px; }
.filebox-head { display: flex; justify-content: space-between; gap: 12px; align-items: baseline; margin-top: 12px; }
.filebox-head p { margin: 0; font-weight: 600; }
.filelist { list-style: none; margin: 8px 0 0; padding: 0; max-height: 15rem; overflow: auto; border: 1px solid var(--rule); border-radius: 8px; background: var(--card); }
.filelist li { display: flex; justify-content: space-between; gap: 12px; padding: 7px 12px; border-top: 1px solid var(--rule); font-size: .92rem; }
.filelist li:first-child { border-top: 0; }
.filelist .fname { overflow-wrap: anywhere; }
.filelist .fsize { color: var(--muted); white-space: nowrap; }
.filelist .is-index .fname { font-weight: 700; }
.progress { margin: 14px 0; }
.progress-bar { height: 12px; width: 100%; border-radius: 3px; background: var(--rule); position: relative; overflow: hidden; }
.progress-bar::after { content: ""; position: absolute; inset: 0 auto 0 0; width: var(--p, 0%); background: var(--ember); transition: width .15s linear; }
.progress-text { margin: 6px 0 0; color: var(--muted); font-size: .92rem; }
.done { padding: 28px; border: 2px solid var(--ink); border-top: 8px solid var(--c6); border-radius: 12px; background: var(--card); }
.done-kicker { margin: 0 0 12px; font-weight: 600; color: var(--ok); }
.done-line { margin: 14px 0 6px; font-size: 1.1rem; }
.done-link { margin: 0 0 8px; overflow-wrap: anywhere; }
.done-hint { margin: 0 0 18px; }
.done-actions { display: flex; flex-wrap: wrap; gap: 10px; }

@media (max-width: 860px) {
  .shell { grid-template-columns: minmax(0, 1fr); }
  .rail { position: static; height: auto; flex-direction: row; flex-wrap: wrap; align-items: center; gap: 8px 16px; padding: 12px 16px; border-right: 0; border-bottom: 1px solid var(--rule); }
  .brand-block { flex: 1 1 auto; }
  .nav { order: 3; flex-direction: row; flex-basis: 100%; margin: 0; gap: 6px; }
  .nav-link { border: 2px solid var(--rule); border-radius: 999px; padding: 5px 14px; }
  .nav-link.active { border-color: var(--ink); }
  .who { margin: 0; padding: 0; border: 0; display: flex; align-items: center; gap: 10px; }
  .who-role { display: none; }
  .who-name { font-size: .9rem; }
  .main { padding: 24px 16px 72px; }
  .row { grid-template-columns: minmax(0, 1fr) auto; }
  .row-id { grid-row: auto; grid-column: 1 / -1; }
  .row-side { grid-row: auto; grid-column: 1 / -1; flex-direction: row; align-items: center; justify-content: space-between; flex-wrap: wrap; }
  .grid2 { grid-template-columns: minmax(0, 1fr); }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; animation: none !important; } }