/*
 * BFrost UI — direction C «HUD» (docs/frontend.md, docs/brand.md).
 * Three display modes on <html data-mode>: dark (default) · light · tactical
 * (red on black, statuses told apart by shape and brightness, not hue).
 * Accent "northern lights / the bridge": --au1 → --au2 → --au3, dosed.
 * Fonts are served by us (no third-party font hosts): OFL, see ../fonts/.
 */

/* ---------------------------------------------------------------- fonts */
@font-face { font-family: 'Exo 2'; font-style: normal; font-weight: 400 700; font-display: swap;
  src: url("../fonts/exo2-cyrillic-WgqS6a6.woff2") format('woff2'); unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116; }
@font-face { font-family: 'Exo 2'; font-style: normal; font-weight: 400 700; font-display: swap;
  src: url("../fonts/exo2-latin-ext-rI-_TGG.woff2") format('woff2'); unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }
@font-face { font-family: 'Exo 2'; font-style: normal; font-weight: 400 700; font-display: swap;
  src: url("../fonts/exo2-latin-BXDpnIT.woff2") format('woff2'); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: 'B612 Mono'; font-style: normal; font-weight: 400; font-display: swap; src: url("../fonts/b612mono-400-BjRnOCA.woff2") format('woff2'); }
@font-face { font-family: 'B612 Mono'; font-style: normal; font-weight: 700; font-display: swap; src: url("../fonts/b612mono-700-g6PwD9u.woff2") format('woff2'); }

/* ---------------------------------------------------------------- tokens */
:root, :root[data-mode="dark"] {
  color-scheme: dark;
  --bg: #02060A; --bg-2: #06141C;
  --panel: rgba(3, 18, 26, .78); --panel-border: rgba(80, 225, 255, .45); --panel-edge: rgba(80, 225, 255, .12); --panel-hi: rgba(51, 225, 255, .05);
  --text: #E2FBFF; --text-2: #8FC3CF;
  --accent: #33E1FF; --accent-ink: #00141A;
  --ok: #5CFFA8; --warn: #FFC94D; --crit: #FF4D5E;
  --row-on: rgba(51, 225, 255, .12); --btn: rgba(51, 225, 255, .08);
  --map-line: rgba(80, 220, 255, .10); --map-water: #062234;
  --au1: #5CFFC8; --au2: #33E1FF; --au3: #B58CFF;
}
:root[data-mode="light"] {
  color-scheme: light;
  --bg: #D3DDE2; --bg-2: #E6EEF1;
  --panel: rgba(244, 249, 251, .88); --panel-border: rgba(0, 110, 135, .5); --panel-edge: rgba(0, 110, 135, .18); --panel-hi: rgba(0, 114, 140, .05);
  --text: #03222A; --text-2: #2E5560;
  --accent: #00728C; --accent-ink: #FFFFFF;
  --ok: #0B8A4F; --warn: #9A6700; --crit: #C21F33;
  --row-on: rgba(0, 114, 140, .11); --btn: rgba(0, 114, 140, .08);
  --map-line: rgba(0, 80, 100, .13); --map-water: #B3CFDA;
  --au1: #0B8A6F; --au2: #00728C; --au3: #6B47C2;
}
:root[data-mode="tactical"] {
  color-scheme: dark;
  --bg: #040000; --bg-2: #120201;
  --panel: rgba(18, 2, 1, .82); --panel-border: rgba(255, 74, 53, .5); --panel-edge: rgba(255, 74, 53, .14); --panel-hi: rgba(255, 74, 53, .05);
  --text: #FF6A58; --text-2: #D2554A;
  --accent: #FF4A35; --accent-ink: #120000;
  --ok: #FF6A58; --warn: #FF9A8A; --crit: #FF2A12;
  --row-on: rgba(255, 74, 53, .11); --btn: rgba(255, 74, 53, .09);
  --map-line: rgba(255, 70, 50, .10); --map-water: #1C0504;
  --au1: #FF2A12; --au2: #FF4A35; --au3: #FF8A7A;
}
:root {
  --font: 'Exo 2', system-ui, sans-serif;
  --mono: 'B612 Mono', ui-monospace, monospace;
  --aurora: linear-gradient(90deg, var(--au1), var(--au2), var(--au3));
  --aurora-v: linear-gradient(180deg, var(--au1), var(--au2), var(--au3));
  --glow: drop-shadow(-1.5px 0 3px color-mix(in oklab, var(--au1) 70%, transparent)) drop-shadow(1.5px 0 4px color-mix(in oklab, var(--au3) 70%, transparent));
  --glow-text: -2px 0 10px color-mix(in oklab, var(--au1) 45%, transparent), 2px 0 12px color-mix(in oklab, var(--au3) 45%, transparent);
  --cut: 14px; --cut-s: 7px; --gap: 12px;
  --chamfer: polygon(var(--cut) 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%, 0 var(--cut));
  --chamfer-s: polygon(var(--cut-s) 0, 100% 0, 100% calc(100% - var(--cut-s)), calc(100% - var(--cut-s)) 100%, 0 100%, 0 var(--cut-s));
}
:root[data-mode="light"] { --glow: none; --glow-text: none; }

/* ---------------------------------------------------------------- base */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; min-height: 100vh; color: var(--text); font: 15px/1.5 var(--font); -webkit-font-smoothing: antialiased;
  background: radial-gradient(1200px 700px at 60% 30%, var(--bg-2), var(--bg)) fixed, var(--bg);
}
body::before { /* the faint HUD grid */
  content: ""; position: fixed; inset: 0; pointer-events: none; z-index: 0;
  background-image: linear-gradient(var(--panel-edge) 1px, transparent 1px), linear-gradient(90deg, var(--panel-edge) 1px, transparent 1px);
  background-size: 120px 120px; opacity: .55;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
:focus-visible { outline: 2px solid var(--au2); outline-offset: 2px; }
/* Chamfered things are clip-path'ed, and the clip hides an outline drawn outside:
   on them the keyboard focus ring is drawn inside. */
:is(button, .btn, a.card, .card, .side-link, .seg button, .avatar, summary, [class*="sl-"]):focus-visible { outline-offset: -3px; }
h1, h2, h3 { margin: 0; line-height: 1.2; }
strong { font-weight: 600; }
.num, code { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.muted { color: var(--text-2); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ---------------------------------------------------------------- the mark */
.mark { display: block; flex: none; fill: none; stroke-linecap: square; stroke-linejoin: miter; filter: var(--glow); }
.mark .mark-edge { stroke: url(#au-mark); }
.mark .mark-rune { stroke: var(--text); }
.wordmark { font-size: 19px; font-weight: 700; letter-spacing: .2em; text-transform: uppercase; color: var(--text); }

/* ---------------------------------------------------------------- shell */
.shell { position: relative; z-index: 1; display: grid; grid-template-columns: 248px minmax(0, 1fr); grid-template-rows: 60px minmax(0, 1fr); gap: var(--gap); min-height: 100vh; padding: var(--gap); }
.side { grid-row: 1 / span 2; display: flex; flex-direction: column; gap: 2px; padding: 16px 10px; }
.side-brand { display: flex; align-items: center; gap: 10px; padding: 2px 10px 18px; color: inherit; }
.side-brand:hover { text-decoration: none; }
.side-section { display: flex; align-items: center; gap: 8px; padding: 14px 12px 6px; }
.side-section::after { /* a faint interlaced line (Urnes carving) */
  content: ""; width: 36px; height: 8px; opacity: .5; flex: none; background: var(--text-2);
  -webkit-mask: url("../images/knot-VE76zKE.svg") center / contain no-repeat; mask: url("../images/knot-VE76zKE.svg") center / contain no-repeat;
}
.side-link { display: flex; align-items: center; gap: 11px; height: 36px; padding: 0 12px; font-size: 14px; color: var(--text-2); clip-path: var(--chamfer-s); }
.side-link svg { flex: none; width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.side-link:hover { color: var(--text); background: var(--panel-hi); text-decoration: none; }
.side-link[aria-current="page"] { color: var(--accent); background: var(--row-on); font-weight: 600; }
.side-link[aria-current="page"]::after { content: ""; margin-left: auto; width: 3px; height: 16px; border-radius: 2px; background: var(--aurora-v); }
.side-foot { margin-top: auto; padding: 12px 12px 0; font-size: 12px; color: var(--text-2); }

/* .top is also a .panel (padding: 0, declared later): keep its own inset. */
.top, .top.panel { display: flex; align-items: center; gap: 18px; padding: 0 12px 0 20px; }
.top-title { font-size: 13px; font-weight: 700; letter-spacing: .2em; text-transform: uppercase; text-shadow: var(--glow-text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.top-spacer { flex-grow: 1; }
.top-user { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--text-2); }
.avatar { width: 36px; height: 36px; display: flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 700; letter-spacing: .04em; color: var(--accent-ink); background: var(--aurora); clip-path: var(--chamfer-s); }

/* Every page takes the whole width (its panels share a row: auto-fit, no empty columns); a page of one form narrows itself (.narrow). */
.content { position: relative; min-width: 0; padding: 8px 4px 32px; }

/* ---------------------------------------------------------------- panels */
.card, .panel {
  position: relative; background: var(--panel); padding: 24px;
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  box-shadow: inset 0 1px 0 var(--panel-border), inset 0 0 0 1px var(--panel-edge);
  clip-path: var(--chamfer);
}
.panel { padding: 0; }
a.card { display: block; color: inherit; transition: background .15s; }
a.card:hover { text-decoration: none; background: color-mix(in oklab, var(--panel) 80%, var(--accent) 8%); }
a.card:hover h2 { text-shadow: var(--glow-text); }
.card + .card { margin-top: 16px; }
.card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(280px, 100%), 1fr)); gap: 16px; }
.card-grid > .card + .card { margin-top: 0; }
.card h2 { font-size: 13px; font-weight: 700; letter-spacing: .18em; text-transform: uppercase; margin-bottom: 8px; }
.card p:last-child { margin-bottom: 0; }

/* ---------------------------------------------------------------- page heads */
.crumbs { display: flex; flex-wrap: wrap; gap: 6px; margin: 0 0 10px; font-size: 13px; color: var(--text-2); }
.crumbs a { color: var(--text-2); }
.crumbs a:hover { color: var(--text); }
.page-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 20px; }
.page-title { font-size: 26px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; text-shadow: var(--glow-text); }
.page-lead { margin: -8px 0 20px; color: var(--text-2); max-width: 70ch; }
.section-title { font-size: 13px; font-weight: 700; letter-spacing: .18em; text-transform: uppercase; }
.narrow { max-width: 680px; }

/* ---------------------------------------------------------------- layout helpers */
.row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.between { justify-content: space-between; }
form.inline { display: inline; }

/* ---------------------------------------------------------------- controls */
button, .btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 44px; padding: 0 20px;
  border: 0; font: inherit; font-weight: 700; font-size: 13px; letter-spacing: .12em; text-transform: uppercase; text-decoration: none;
  color: var(--accent-ink); background: var(--aurora); cursor: pointer; clip-path: var(--chamfer-s);
}
button:hover, .btn:hover { text-decoration: none; filter: brightness(1.08); }
:root:not([data-mode="light"]) :is(button[type=submit], .btn):not(.btn-2):not(.btn-danger) {
  box-shadow: -6px 0 22px color-mix(in oklab, var(--au1) 35%, transparent), 6px 0 22px color-mix(in oklab, var(--au3) 35%, transparent);
}
.btn-2 { color: var(--text); background: var(--btn); box-shadow: inset 0 0 0 1px var(--panel-edge); }
.btn-2:hover { background: var(--row-on); filter: none; }
.btn-danger { color: var(--crit); background: transparent; box-shadow: inset 0 0 0 1px var(--crit); }
.btn-danger:hover { background: color-mix(in oklab, var(--crit) 12%, transparent); filter: none; }
.btn-sm { height: 32px; padding: 0 12px; font-size: 11px; }

label { display: block; margin: 0 0 7px; font-size: 11px; font-weight: 600; letter-spacing: .16em; text-transform: uppercase; color: var(--text-2); }
input[type=text], input[type=password], input[type=email], input[type=search], input[type=number], select, textarea {
  width: 100%; min-height: 46px; padding: 0 14px; font: inherit; font-size: 15px; color: var(--text);
  background: var(--btn); border: 0; box-shadow: inset 0 0 0 1px var(--panel-edge), inset 0 -1px 0 var(--panel-border);
  clip-path: var(--chamfer-s); outline: none;
}
textarea { padding: 12px 14px; min-height: 110px; resize: vertical; }
input:focus-visible, select:focus-visible, textarea:focus-visible { box-shadow: inset 0 0 0 1px var(--accent), inset 0 -2px 0 var(--accent); outline: none; }
select option { background: var(--bg-2); color: var(--text); }
input[type=checkbox] { width: 18px; height: 18px; margin: 0; accent-color: var(--au2); }

.form-row { margin-bottom: 18px; }
.form-row .help { font-size: 13px; color: var(--text-2); margin-top: 6px; }
.form-row ul { margin: 6px 0 0; padding: 0; list-style: none; color: var(--crit); font-size: 13px; }
.check { display: flex; align-items: center; gap: 10px; }
.check label { margin: 0; font-size: 14px; font-weight: 400; letter-spacing: 0; text-transform: none; color: var(--text); }
.form-actions { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; margin-top: 8px; }

/* segmented control (display mode) */
.seg { display: flex; gap: 2px; padding: 3px; background: var(--btn); clip-path: var(--chamfer-s); }
.seg button { height: 32px; padding: 0 12px; font-size: 11px; letter-spacing: .1em; color: var(--text-2); background: transparent; box-shadow: none; clip-path: none; }
.seg button:hover { color: var(--text); filter: none; }
.seg button[aria-pressed="true"] { color: var(--accent-ink); background: var(--accent); }

/* ---------------------------------------------------------------- data */
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 11px 10px; border-bottom: 1px solid var(--panel-edge); vertical-align: middle; }
th { font-size: 11px; font-weight: 600; letter-spacing: .16em; text-transform: uppercase; color: var(--text-2); white-space: nowrap; }
tbody tr:hover td { background: var(--panel-hi); }
td.actions { text-align: right; white-space: nowrap; }
td.actions > * + * { margin-left: 6px; }
.table-wrap { overflow-x: auto; }
/* A data table that does not fit where it stands — a phone, a tablet, a narrow
   column — becomes a stack of cards, "column: value" per line (app.js: it copies
   each column's heading onto its cells and sets .is-cards while the table is too wide). */
table.is-cards thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
table.is-cards, table.is-cards tbody, table.is-cards tr, table.is-cards td { display: block; width: 100%; }
table.is-cards tr { padding: 10px 2px; border-bottom: 1px solid var(--panel-edge); }
table.is-cards td { display: grid; grid-template-columns: minmax(92px, 36%) minmax(0, 1fr); gap: 10px; padding: 3px 0; border: 0; overflow-wrap: anywhere; }
table.is-cards td::before { content: attr(data-label); padding-top: 2px; font-size: 10.5px; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--text-2); }
table.is-cards td:is([data-label=""], [colspan]) { display: block; }
table.is-cards td:is([data-label=""], [colspan])::before { display: none; }
table.is-cards tbody tr:hover td { background: none; }
.table-wrap:has(> table.is-cards) { overflow: visible; }

.badge {
  display: inline-flex; align-items: center; gap: 6px; height: 22px; padding: 0 9px; vertical-align: middle;
  font-size: 10.5px; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; white-space: nowrap;
  color: var(--text-2); background: var(--btn); clip-path: var(--chamfer-s);
}
.badge-accent { color: var(--accent); background: var(--row-on); }

/* status by SHAPE, not colour alone: ● ok · ▲ warning · ◆ critical */
.status { display: inline-flex; align-items: center; gap: 7px; font-size: 13px; }
.status::before { content: ""; width: 9px; height: 9px; flex: none; }
.status-ok::before { border-radius: 50%; background: var(--ok); }
.status-warn::before { background: var(--warn); clip-path: polygon(50% 0, 100% 100%, 0 100%); }
.status-crit::before { background: var(--crit); transform: rotate(45deg) scale(.85); }
.status-off::before { border-radius: 50%; box-shadow: inset 0 0 0 1.5px var(--text-2); }

.alert {
  display: flex; align-items: center; gap: 10px; padding: 12px 16px; margin-bottom: 16px; font-size: 14px;
  color: var(--crit); background: color-mix(in oklab, var(--crit) 9%, transparent); box-shadow: inset 0 0 0 1px color-mix(in oklab, var(--crit) 55%, transparent);
  clip-path: var(--chamfer-s);
}
.alert::before { content: ""; width: 9px; height: 9px; flex: none; background: currentColor; transform: rotate(45deg) scale(.85); }
.alert-success { color: var(--ok); background: color-mix(in oklab, var(--ok) 9%, transparent); box-shadow: inset 0 0 0 1px color-mix(in oklab, var(--ok) 55%, transparent); }
.alert-success::before { border-radius: 50%; transform: none; }

.tree, .tree ul { list-style: none; margin: 0; padding: 0; }
.tree ul { padding-left: 22px; margin-left: 7px; border-left: 1px solid var(--panel-edge); }
.tree li { padding: 6px 0; }
.tree a { font-weight: 600; }

.kv th { width: 34%; }
.tool-url { display: block; margin-top: 10px; font-family: var(--mono); font-size: 12px; color: var(--accent); overflow-wrap: anywhere; }

/* ---------------------------------------------------------------- sign-in */
.login { position: relative; z-index: 1; min-height: 100vh; display: grid; place-items: center; padding: 24px; overflow: hidden; }
.login-backdrop { position: fixed; inset: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none; }
.login-backdrop .terrain { fill: none; stroke: var(--map-line); stroke-width: 1.2; }
.login-backdrop .water { fill: none; stroke: var(--map-water); stroke-width: 22; stroke-linecap: round; }
.login-backdrop .arch { fill: none; stroke: url(#au-arch); }
.login-backdrop .arch-glow { stroke-width: 26; opacity: .32; filter: blur(14px); animation: breathe 6s ease-in-out infinite; }
.login-backdrop .arch-line { stroke-width: 1.4; opacity: .7; }
.login-card { position: relative; width: 100%; max-width: 440px; padding: 40px 40px 32px; display: flex; flex-direction: column; gap: 28px; }
.login-brand { display: flex; flex-direction: column; align-items: center; gap: 14px; }
.login-head { display: flex; flex-direction: column; gap: 6px; }
.login-head h1 { font-size: 24px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; text-shadow: var(--glow-text); }
.login-head p { margin: 0; font-size: 14px; color: var(--text-2); }
.login-form { display: flex; flex-direction: column; gap: 18px; }
.login-form .field label { margin-bottom: 8px; }
.pw { position: relative; }
.pw input { padding-right: 96px; }
.pw button { position: absolute; right: 6px; top: 50%; transform: translateY(-50%); height: 34px; padding: 0 10px; font-size: 11px; color: var(--text-2); background: transparent; box-shadow: none; }
.pw button:hover { color: var(--text); filter: none; }
.login-form .check { color: var(--text-2); }
.login-form button[type=submit] { width: 100%; height: 48px; font-size: 14px; letter-spacing: .14em; }
.login-secure { display: flex; flex-direction: column; align-items: center; gap: 10px; font-size: 12px; color: var(--text-2); }
.dots { position: relative; width: 160px; height: 12px; }
.dots span { position: absolute; width: 4.4px; height: 4.4px; margin: -2.2px 0 0 -2.2px; border-radius: 50%; animation: dot 2.6s ease-in-out infinite; }
.login-mode { position: fixed; right: 24px; bottom: 16px; z-index: 2; }

@keyframes dot { 0%, 100% { opacity: .18; } 40%, 60% { opacity: 1; } }
@keyframes breathe { 0%, 100% { opacity: .22; } 50% { opacity: .4; } }
@media (prefers-reduced-motion: reduce) { .dots span, .login-backdrop .arch-glow { animation: none; } }

/* ---------------------------------------------------------------- small screens */
/* Desktop: the phone-only parts stay out. */
.nav-toggle, .side-extra, .nav-scrim { display: none; }

/* Phones and narrow tablets: a sticky top bar with the menu button; the side
   navigation becomes a drawer (app.js opens and closes it). */
@media (max-width: 900px) {
  .shell { display: block; padding: 0 10px 10px; }
  .top, .top.panel {
    position: sticky; top: 0; z-index: 40; gap: 10px; height: 56px; margin: 0 -10px 10px; padding: 0 10px 0 6px;
    padding-top: env(safe-area-inset-top); height: calc(56px + env(safe-area-inset-top)); clip-path: none;
  }
  .top-wide { display: none !important; }
  .top-user span:not(.avatar) { display: none; }
  .nav-toggle { display: grid; place-items: center; flex: none; width: 44px; height: 44px; padding: 0; color: var(--text); background: transparent; box-shadow: none; clip-path: none; }
  .nav-toggle svg { width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; }
  .top-title { font-size: 13px; letter-spacing: .14em; }

  .side {
    position: fixed; z-index: 60; inset: 0 auto 0 0; width: min(86vw, 320px); overflow-y: auto; overscroll-behavior: contain;
    padding: calc(16px + env(safe-area-inset-top)) 12px calc(16px + env(safe-area-inset-bottom));
    transform: translateX(-105%); transition: transform .22s ease; visibility: hidden; clip-path: none;
  }
  html.nav-open .side { transform: none; visibility: visible; box-shadow: 0 0 0 1px var(--panel-edge), 24px 0 64px rgba(0, 0, 0, .45); }
  .side-link { height: 46px; font-size: 15px; }
  .side-extra { display: flex; flex-direction: column; align-items: flex-start; gap: 12px; margin-top: auto; padding: 18px 8px 0; }
  /* Only while the menu is open: an invisible layer over the page would take every tap. */
  .nav-scrim { position: fixed; z-index: 50; inset: 0; background: rgba(0, 0, 0, .45); animation: scrim-in .2s ease; }
  html.nav-open .nav-scrim:not([hidden]) { display: block; }
  html.nav-open { overflow: hidden; }

  .content { padding: 4px 0 24px; }
  .login-card { padding: 32px 22px 24px; }
}
@keyframes scrim-in { from { opacity: 0; } }
@media (max-width: 900px) and (prefers-reduced-motion: reduce) { .side { transition: none; } .nav-scrim { animation: none; } }

/* Touch screens get bigger targets (44 px, as the platforms advise). */
@media (pointer: coarse) {
  button, .btn, .seg button, select, input:not([type="checkbox"]):not([type="radio"]) { min-height: 44px; }
  .btn-sm { min-height: 40px; }
  input[type="checkbox"], input[type="radio"] { width: 22px; height: 22px; }
}

/* ---------------------------------------------------------------- profile, 2FA */
.avatar-lg { width: 56px; height: 56px; font-size: 18px; }
.card-grid-wide { grid-template-columns: repeat(auto-fit, minmax(min(380px, 100%), 1fr)); align-items: start; }
.form-pair { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(180px, 100%), 1fr)); column-gap: 14px; }
.qr { width: 248px; max-width: 100%; padding: 8px; margin-bottom: 16px; background: #fff; clip-path: var(--chamfer-s); }
.qr svg { display: block; width: 100%; height: auto; }
.secret { display: block; padding: 10px 12px; font-size: 14px; letter-spacing: .08em; overflow-wrap: anywhere; background: var(--btn); clip-path: var(--chamfer-s); }
.code-input { font-family: var(--mono); font-size: 22px !important; letter-spacing: .3em; text-align: center; }
a.top-user { color: var(--text-2); }
a.top-user:hover, a.top-user[aria-current="page"] { color: var(--text); text-decoration: none; }

/* ---------------------------------------------------------------- list filters, pager */
.filters { display: grid; grid-template-columns: minmax(220px, 2fr) repeat(2, minmax(160px, 1fr)) auto; gap: 14px; align-items: end; margin-bottom: 12px; padding: 18px 20px; }
.filters label { margin-bottom: 6px; }
.filter-actions { display: flex; align-items: center; gap: 14px; }
.list-count { margin: 0 0 10px; font-size: 13px; }
.pager { display: flex; align-items: center; justify-content: center; gap: 14px; margin-top: 16px; }
@media (max-width: 900px) { .filters { grid-template-columns: minmax(0, 1fr); } }
.link-card { box-shadow: inset 0 1px 0 var(--accent), inset 0 0 0 1px var(--panel-edge); }
.copy-row { display: flex; gap: 10px; }
.copy-row input { font-family: var(--mono); font-size: 13px; }
.copy-row button { flex: none; }

/* ---------------------------------------------------------------- wizard */
.steps { display: flex; flex-wrap: wrap; gap: 6px; margin: 0 0 18px; padding: 0; list-style: none; font-size: 12px; letter-spacing: .12em; text-transform: uppercase; color: var(--text-2); }
.steps li { display: flex; align-items: center; gap: 8px; padding: 6px 12px; background: var(--btn); clip-path: var(--chamfer-s); }
.steps li .num { color: var(--text-2); }
.steps li.done { color: var(--text); }
.steps li[aria-current="step"] { color: var(--accent); background: var(--row-on); }
.choice { display: flex; flex-direction: column; gap: 8px; color: inherit; }
a.choice:hover { text-decoration: none; box-shadow: inset 0 1px 0 var(--accent), inset 0 0 0 1px var(--panel-edge); }
.choice-off { opacity: .55; }
.howto { margin: 0 0 14px; padding-left: 20px; display: flex; flex-direction: column; gap: 6px; }
.prep-code { margin: 8px 0 10px; font-size: 32px; font-weight: 700; letter-spacing: .12em; color: var(--accent); text-shadow: var(--glow-text);
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }

/* Copy-to-clipboard icon button (templates/_copy.html.twig). */
.copy-btn { position: relative; display: inline-grid; place-items: center; width: 34px; height: 34px; padding: 0; flex: none;
  border-radius: 8px; color: var(--text-2); background: var(--btn); box-shadow: inset 0 0 0 1px var(--panel-edge);
  cursor: pointer; transition: color .15s, background .15s, box-shadow .15s; text-shadow: none; }
.copy-btn:hover { color: var(--accent); background: var(--row-on); box-shadow: inset 0 0 0 1px var(--panel-border); }
.copy-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.copy-btn svg { grid-area: 1 / 1; width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round;
  transition: opacity .15s, transform .15s; }
.copy-btn .copy-done { opacity: 0; transform: scale(.6); }
.copy-btn.is-done { color: var(--ok); }
.copy-btn.is-done .copy-icon { opacity: 0; transform: scale(.6); }
.copy-btn.is-done .copy-done { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .copy-btn svg { transition: none; } }
@media (max-width: 640px) { .copy-btn { width: 40px; height: 40px; } }
details.manual { margin-top: 18px; }
details.manual summary { cursor: pointer; color: var(--text-2); font-size: 13px; }

/* ---------------------------------------------------------------- clickable things: always the hand */
:where(button, [role="button"], .btn, summary, select, a[href], input[type="checkbox"], input[type="radio"], input[type="submit"], input[type="file"], label:has(> input[type="checkbox"]), label:has(> input[type="radio"])):not([disabled]) { cursor: pointer; }
:where(button, .btn, input)[disabled] { cursor: not-allowed; }

/* ---------------------------------------------------------------- navigation rail: icons, full on hover */
/* Only with a pointer that hovers: on a touch tablet the panel stays open, with its labels. */
@media (min-width: 901px) and (hover: hover) {
  .shell { grid-template-columns: 72px minmax(0, 1fr); }
  .side {
    position: relative; z-index: 30; width: 72px; overflow: hidden; padding: 16px 10px;
    transition: width .18s ease, box-shadow .18s ease;
  }
  .side:is(:hover, :focus-within) { width: 272px; box-shadow: inset 0 1px 0 var(--panel-border), inset 0 0 0 1px var(--panel-edge), 0 18px 48px rgba(0, 0, 0, .3); }
  .side-link { white-space: nowrap; gap: 16px; padding: 0 15px; }
  .side-link span, .side-section, .side-foot { transition: opacity .15s ease; }
  .side:not(:hover):not(:focus-within) :is(.side-link span, .side-section, .side-foot, .wordmark) { opacity: 0; }
  .side:not(:hover):not(:focus-within) .side-link[aria-current="page"]::after { opacity: 0; }
  .side-section { white-space: nowrap; }
  /* The brand spans the open panel: a larger mark and wordmark. */
  .side-brand { gap: 16px; padding: 0 2px 22px; white-space: nowrap; }
  .side-brand .mark { width: 48px; height: 48px; }
  .side-brand .wordmark { font-size: 28px; letter-spacing: .26em; transition: opacity .15s ease; }
}

/* Board maintenance block of the settings page. */
.board-maint table { margin-bottom: 14px; }
.board-actions { gap: 8px; flex-wrap: wrap; }
.board-actions form { margin: 0; }
.board-log-title { font-size: 12px; letter-spacing: .14em; text-transform: uppercase; color: var(--text-2); margin: 18px 0 8px; }
.board-log { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 6px; font-size: 13px; }
.board-log li { display: flex; flex-wrap: wrap; gap: 4px 10px; align-items: baseline; }

/* Old unpublished builds, folded (admin images). */
.older-builds { margin-top: 14px; }
.older-builds summary { cursor: pointer; color: var(--text-2); font-size: 13px; }
.older-builds summary:hover { color: var(--text); }
.older-list { list-style: none; margin: 8px 0 12px; padding: 0; display: flex; flex-wrap: wrap; gap: 4px 18px; font-size: 13px; }

/* The board's GPIO settings: only a behaviour's own fields show. */
.gpio-on { display: flex; align-items: center; gap: 8px; margin: 6px 0 12px; }
.gpio-table th, .gpio-table td { padding: 7px 10px; }
.gpio-table td:first-child { white-space: nowrap; }
.gpio-table select[name$="[mode]"], .gpio-table input[type="text"] { width: 100%; min-width: 170px; }
.gpio-table select[name$="[init]"] { min-width: 96px; }
.gpio-table input[type="number"] { width: 110px; }
.gpio-meta { display: flex; flex-wrap: wrap; gap: 4px 8px; margin-top: 3px; font-size: 11px; }
.gpio-table tr:not([data-mode="switch"]) td:nth-child(4) > *, .gpio-table tr:not([data-mode="pwm"]) td:nth-child(5) > * { visibility: hidden; }
.gpio-table tr[data-mode="off"] td:nth-child(3) > * { opacity: .45; }
.gpio-help { font-size: 12.5px; margin: 12px 0; padding-left: 18px; display: flex; flex-direction: column; gap: 4px; }
.badge-warn { color: var(--warn); background: color-mix(in oklab, var(--warn) 14%, transparent); }

/* A settings page with room: the main fields left, the rest beside them on a wide screen. */
.settings-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: 16px; align-items: start; }
.settings-main > .card + .card, .settings-side > .card + .card { margin-top: 16px; }
@media (min-width: 1200px) { .settings-grid { grid-template-columns: minmax(360px, 480px) minmax(0, 1fr); } }