/* Argus Collaboration web UI.
   Design system: dark theme by default, light variant via prefers-color-scheme.
   System font stack only; no external assets. Component classes only —
   CSP forbids inline styles, so all styling lives here. */

:root {
  color-scheme: dark;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;

  --bg: #0a0d14;
  --bg-elev: #0e141f;
  --panel: #111724;
  --panel-2: #0c111a;
  --line: #202a3b;
  --line-strong: #33415c;
  --text: #e9edf6;
  --muted: #96a2b8;
  --accent: #7aa5ff;
  --accent-strong: #5c8df6;
  --accent-ink: #0a1222;
  --ring: rgba(122, 165, 255, .32);
  --ok: #5fca94;
  --ok-bg: rgba(63, 185, 125, .13);
  --warn: #e9b872;
  --warn-bg: rgba(220, 165, 80, .13);
  --danger: #ff93a4;
  --danger-bg: rgba(255, 110, 135, .11);
  --danger-strong: #d84a62;
  --info-bg: rgba(100, 148, 250, .12);
  --violet: #bda4ff;
  --violet-bg: rgba(160, 130, 255, .13);
  --shadow-1: 0 1px 2px rgba(0, 0, 0, .35);
  --shadow-2: 0 16px 40px rgba(0, 0, 0, .45), 0 2px 8px rgba(0, 0, 0, .3);

  --r-sm: 8px;
  --r-md: 10px;
  --r-lg: 14px;

  --space-1: .25rem;
  --space-2: .5rem;
  --space-3: .75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;

  --text-xs: .75rem;
  --text-sm: .8125rem;
  --text-base: .9375rem;
  --text-lg: 1.0625rem;
  --text-xl: 1.375rem;
  --text-2xl: 1.75rem;

  background: var(--bg);
  color: var(--text);
  font: var(--text-base)/1.55 var(--font);
  -webkit-font-smoothing: antialiased;
}

@media (prefers-color-scheme: light) {
  :root {
    color-scheme: light;
    --bg: #f3f5f9;
    --bg-elev: #ffffff;
    --panel: #ffffff;
    --panel-2: #f0f3f8;
    --line: #dee4ee;
    --line-strong: #c0cbdc;
    --text: #182130;
    --muted: #5a6a85;
    --accent: #2f6ae0;
    --accent-strong: #2f6ae0;
    --accent-ink: #ffffff;
    --ring: rgba(47, 106, 224, .25);
    --ok: #14724a;
    --ok-bg: rgba(21, 150, 85, .12);
    --warn: #8a5c0d;
    --warn-bg: rgba(190, 140, 30, .14);
    --danger: #c23348;
    --danger-bg: rgba(210, 60, 85, .09);
    --danger-strong: #b3273d;
    --info-bg: rgba(47, 106, 224, .08);
    --violet: #6b4fc7;
    --violet-bg: rgba(107, 79, 199, .1);
    --shadow-1: 0 1px 2px rgba(20, 30, 50, .07);
    --shadow-2: 0 16px 40px rgba(20, 30, 50, .12), 0 2px 6px rgba(20, 30, 50, .07);
  }
}

* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; }
::selection { background: var(--ring); }

a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { text-decoration-thickness: 2px; }

.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }

.skip { position: absolute; left: -999px; top: 0; z-index: 60; }
.skip:focus { left: var(--space-4); top: var(--space-4); padding: var(--space-2) var(--space-4);
  background: var(--panel); border: 1px solid var(--line-strong); border-radius: var(--r-sm); }

/* ---- Shell ---------------------------------------------------------------- */

.topbar { position: sticky; top: 0; z-index: 30; display: flex; align-items: center; gap: var(--space-4);
  padding: .65rem clamp(1rem, 4vw, 2rem); border-bottom: 1px solid var(--line);
  background: var(--bg-elev);
  background: color-mix(in srgb, var(--bg-elev) 86%, transparent);
  backdrop-filter: blur(14px) saturate(1.3); -webkit-backdrop-filter: blur(14px) saturate(1.3); }
.brand { display: inline-flex; align-items: center; gap: .6rem; color: var(--text);
  font-weight: 700; letter-spacing: -.01em; text-decoration: none; font-size: var(--text-base); }
.brand img { display: block; border-radius: 6px; }
.brand-sub { color: var(--muted); font-weight: 500; }

#nav { display: flex; align-items: center; gap: var(--space-3); margin-left: auto; font-size: var(--text-sm); }
#nav a { color: var(--muted); text-decoration: none; padding: .35rem .6rem; border-radius: var(--r-sm); }
#nav a:hover { color: var(--text); background: var(--panel-2); }
#nav a[aria-current="page"] { color: var(--text); }

.user-chip { display: inline-flex; align-items: center; gap: .55rem; padding: .25rem .7rem .25rem .3rem;
  border: 1px solid var(--line); border-radius: 999px; background: var(--panel); max-width: 16rem; }
.avatar { display: inline-flex; align-items: center; justify-content: center; width: 1.55rem; height: 1.55rem;
  border-radius: 50%; background: var(--accent-strong); color: var(--accent-ink);
  font-size: .66rem; font-weight: 700; letter-spacing: .02em; flex: none; }
.user-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--text); }

.shell { display: grid; grid-template-columns: 14rem minmax(0, 1fr); gap: clamp(1.25rem, 3vw, 2.5rem);
  width: min(100% - 2rem, 72rem); margin: 0 auto; padding: var(--space-6) 0 var(--space-7); }
.sidenav { position: sticky; top: 4.25rem; align-self: start; display: flex; flex-direction: column; gap: var(--space-5); }
.sidenav[hidden] { display: none; }
.side-group { display: flex; flex-direction: column; gap: 2px; }
.side-label { margin: 0 0 var(--space-2); padding: 0 var(--space-3); color: var(--muted);
  font-size: .68rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
.sidenav a { display: block; padding: .45rem var(--space-3); border-radius: var(--r-sm);
  color: var(--muted); text-decoration: none; font-size: var(--text-sm); border-left: 2px solid transparent; }
.sidenav a:hover { color: var(--text); background: var(--panel); }
.sidenav a[aria-current="page"] { color: var(--text); background: var(--panel);
  border-left-color: var(--accent); font-weight: 600; }

body[data-layout="auth"] .shell { display: block; width: min(100% - 2rem, 28rem); }
body[data-layout="auth"] main { padding-top: clamp(1.5rem, 7vh, 4.5rem); }
body[data-layout="auth"] { background:
  radial-gradient(55rem 26rem at 50% -12%, var(--info-bg), transparent 70%), var(--bg); }
body[data-layout="auth"] .topbar { border-bottom-color: transparent; background: transparent; backdrop-filter: none; -webkit-backdrop-filter: none; }

/* Focus moves to <main> after each view renders (for screen readers); never draw a ring around the page. */
main, main:focus, main:focus-visible { min-width: 0; outline: none; }

/* ---- Typography ------------------------------------------------------------- */

.page-head { margin-bottom: var(--space-6); }
h1 { margin: 0 0 .45rem; font-size: clamp(1.45rem, 3vw, var(--text-2xl)); line-height: 1.2;
  font-weight: 700; letter-spacing: -.015em; }
h2 { margin: 0 0 var(--space-4); font-size: var(--text-lg); font-weight: 650; letter-spacing: -.01em; }
h3 { margin: var(--space-5) 0 var(--space-2); font-size: var(--text-base); font-weight: 650; }
.lede { margin: 0 0 var(--space-5); color: var(--muted); font-size: var(--text-base); max-width: 44rem; }
.page-head .lede { margin-bottom: 0; }
.eyebrow { margin: 0 0 .4rem; color: var(--accent); font-size: .72rem; font-weight: 700;
  letter-spacing: .13em; text-transform: uppercase; }
p { margin: 0 0 var(--space-3); }

.page-loading { display: flex; align-items: center; gap: .6rem; color: var(--muted); padding: var(--space-6) 0; }
.spinner { width: 1rem; height: 1rem; border-radius: 50%; flex: none;
  border: 2px solid var(--line-strong); border-top-color: var(--accent); }

/* ---- Cards ------------------------------------------------------------------ */

.card { border: 1px solid var(--line); border-radius: var(--r-lg); background: var(--panel);
  padding: clamp(1.15rem, 3vw, 1.6rem); margin: 0 0 var(--space-5); box-shadow: var(--shadow-1);
  scroll-margin-top: 5rem; }
.card > :last-child { margin-bottom: 0; }
body[data-layout="auth"] .card { box-shadow: var(--shadow-2); }
.grid { display: grid; gap: var(--space-5); grid-template-columns: repeat(auto-fit, minmax(17rem, 1fr)); }

/* ---- Status, notices, toasts -------------------------------------------------- */

.notice { margin: 0 0 var(--space-4); padding: .7rem var(--space-4); border-radius: var(--r-sm);
  background: var(--info-bg); color: var(--text); border-left: 3px solid var(--accent); font-size: var(--text-sm); }
.notice.error { background: var(--danger-bg); border-left-color: var(--danger); }
.notice.success { background: var(--ok-bg); border-left-color: var(--ok); }
.notice.warning { background: var(--warn-bg); border-left-color: var(--warn); }
.notice:empty { display: none; }

.toasts { position: fixed; bottom: var(--space-5); right: var(--space-5); z-index: 70;
  display: flex; flex-direction: column; gap: var(--space-2); width: min(22rem, calc(100vw - 2rem)); }
.toast { display: flex; align-items: flex-start; gap: var(--space-3); padding: .75rem var(--space-4);
  border-radius: var(--r-md); border: 1px solid var(--line-strong); border-left-width: 3px;
  background: var(--bg-elev); box-shadow: var(--shadow-2); font-size: var(--text-sm); }
.toast.success { border-left-color: var(--ok); }
.toast.error { border-left-color: var(--danger); }
.toast.info { border-left-color: var(--accent); }
.toast-text { margin: 0; flex: 1; overflow-wrap: anywhere; }
.toast-close { background: none; border: 0; color: var(--muted); cursor: pointer; padding: 0 .2rem;
  font-size: var(--text-base); line-height: 1.4; border-radius: 4px; }
.toast-close:hover { color: var(--text); }

/* ---- Forms -------------------------------------------------------------------- */

.field { margin: 0 0 var(--space-4); }
.field label { display: block; margin: 0 0 .35rem; font-weight: 600; font-size: var(--text-sm); }
.field-hint { margin: .4rem 0 0; color: var(--muted); font-size: var(--text-xs); }
input, select, textarea { width: 100%; padding: .55rem .75rem; border: 1px solid var(--line-strong);
  border-radius: var(--r-sm); background: var(--panel-2); color: var(--text); font: inherit; }
input::placeholder { color: var(--muted); opacity: .75; }
input[readonly] { color: var(--muted); }
input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--ring); }
td select { width: auto; max-width: 100%; }

.input-affix { position: relative; }
.input-affix input { padding-right: 2.5rem; }
.affix-btn { position: absolute; right: .3rem; top: 50%; transform: translateY(-50%);
  display: inline-flex; align-items: center; justify-content: center; padding: .38rem;
  border: 0; border-radius: 6px; background: transparent; color: var(--muted); cursor: pointer; }
.affix-btn:hover { color: var(--text); background: var(--line); }

.strength { display: flex; gap: 4px; margin-top: .5rem; }
.strength span { height: 4px; flex: 1; border-radius: 2px; background: var(--line); }
.strength[data-level="1"] span:nth-child(-n+1) { background: var(--danger); }
.strength[data-level="2"] span:nth-child(-n+2) { background: var(--warn); }
.strength[data-level="3"] span:nth-child(-n+3) { background: var(--accent); }
.strength[data-level="4"] span { background: var(--ok); }
.strength-text { min-height: 1.1em; }

.row { display: flex; gap: var(--space-3); align-items: flex-end; flex-wrap: wrap; }
.row > .grow { flex: 1 1 13rem; }
.row .field { margin-bottom: 0; }
td .row { justify-content: flex-end; flex-wrap: nowrap; }

/* ---- Buttons -------------------------------------------------------------------- */

button, .button { display: inline-flex; align-items: center; justify-content: center; gap: .45rem;
  padding: .55rem 1rem; border: 1px solid transparent; border-radius: var(--r-sm);
  background: var(--accent-strong); color: var(--accent-ink);
  font: inherit; font-size: var(--text-sm); font-weight: 650; cursor: pointer;
  text-decoration: none; box-shadow: var(--shadow-1); }
button.secondary, .button.secondary { background: transparent; border-color: var(--line-strong);
  color: var(--text); box-shadow: none; }
button.secondary:hover, .button.secondary:hover { background: var(--panel-2); }
button.danger, .button.danger { background: transparent; border-color: var(--danger-strong);
  color: var(--danger); box-shadow: none; }
button.danger:hover, .button.danger:hover { background: var(--danger-bg); }
button.danger-solid { background: var(--danger-strong); color: #fff; }
button.block { width: 100%; margin-top: var(--space-4); padding: .65rem 1rem; font-size: var(--text-base); }
button.small, .button.small { padding: .3rem .65rem; font-size: var(--text-xs); }
button:disabled { opacity: .5; cursor: not-allowed; }
.actions { display: flex; gap: var(--space-3); flex-wrap: wrap; margin-top: var(--space-5); }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
input:focus-visible, select:focus-visible, textarea:focus-visible { outline: none; }

/* ---- Tables --------------------------------------------------------------------- */

.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--r-md); }
table { width: 100%; border-collapse: collapse; font-size: var(--text-sm); }
th, td { text-align: left; padding: .65rem .9rem; vertical-align: middle; }
th { color: var(--muted); font-weight: 650; font-size: var(--text-xs); text-transform: uppercase;
  letter-spacing: .06em; background: var(--panel-2); border-bottom: 1px solid var(--line); white-space: nowrap; }
tbody tr + tr { border-top: 1px solid var(--line); }
td.right, th.right { text-align: right; }
td .sub { display: block; color: var(--muted); font-size: var(--text-xs); overflow-wrap: anywhere; margin-top: .1rem; }

/* Sharing policy */
.sharing-group { margin: 0 0 var(--space-5); padding: 0; border: 0; }
.sharing-group legend { margin-bottom: var(--space-2); color: var(--muted); font-size: var(--text-xs);
  font-weight: 600; letter-spacing: .08em; text-transform: uppercase; }
.sharing-group { display: grid; gap: var(--space-2); grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
.sharing-group legend { grid-column: 1 / -1; }
.sharing-option { display: flex; gap: var(--space-3); align-items: flex-start; margin: 0; padding: var(--space-3);
  border: 1px solid var(--line); border-radius: var(--r-md); background: var(--panel-2); font-weight: 400; cursor: pointer; }
.sharing-option:has(input:checked) { border-color: var(--line-strong); }
.sharing-option input { width: 1rem; height: 1rem; margin-top: .2rem; accent-color: var(--accent); flex: none; }
.sharing-option input:disabled { cursor: not-allowed; }
.sharing-option strong { display: block; font-weight: 600; }
.sharing-option .sub { display: block; color: var(--muted); font-size: var(--text-xs); margin-top: .1rem; }

.empty { margin: 0; padding: var(--space-5) var(--space-4); text-align: center; color: var(--muted);
  border: 1px dashed var(--line-strong); border-radius: var(--r-md); background: var(--panel-2);
  font-size: var(--text-sm); }

/* ---- Badges, lists, secrets ------------------------------------------------------- */

.badge { display: inline-flex; align-items: center; padding: .12rem .55rem; border-radius: 999px;
  border: 1px solid var(--line-strong); color: var(--muted);
  font-size: var(--text-xs); font-weight: 600; letter-spacing: .01em; white-space: nowrap; }
.badge.info { color: var(--accent); border-color: var(--accent-strong); background: var(--info-bg); }
.badge.admin { color: var(--warn); border-color: var(--warn); background: var(--warn-bg); }
.badge.violet { color: var(--violet); border-color: var(--violet); background: var(--violet-bg); }
.badge.warn { color: var(--danger); border-color: var(--danger-strong); background: var(--danger-bg); }
.badge.ok { color: var(--ok); border-color: var(--ok); background: var(--ok-bg); }

.link-list { list-style: none; margin: 0; padding: 0; border: 1px solid var(--line);
  border-radius: var(--r-md); overflow: hidden; }
.link-list li { display: flex; align-items: center; justify-content: space-between;
  gap: var(--space-3); padding: .7rem var(--space-4); }
.link-list li + li { border-top: 1px solid var(--line); }
.link-list a { font-weight: 600; text-decoration: none; }
.link-list a:hover { text-decoration: underline; }

.secret { display: flex; gap: var(--space-2); align-items: stretch; margin-top: var(--space-3); }
.secret code { flex: 1; display: flex; align-items: center; padding: .65rem .8rem;
  border-radius: var(--r-sm); background: var(--panel-2); border: 1px dashed var(--accent-strong);
  font-family: var(--mono); font-size: var(--text-sm); overflow-wrap: anywhere; }

.kv { display: grid; grid-template-columns: 8.5rem 1fr; gap: .45rem var(--space-4);
  margin: var(--space-4) 0; padding: var(--space-4); border: 1px solid var(--line);
  border-radius: var(--r-md); background: var(--panel-2); }
.kv dt { color: var(--muted); font-size: var(--text-sm); }
.kv dd { margin: 0; overflow-wrap: anywhere; font-weight: 600; font-size: var(--text-sm); }

.consent-scope { list-style: none; margin: var(--space-4) 0; padding: 0; display: grid; gap: var(--space-2); }
.consent-scope li { position: relative; padding-left: 1.6rem; color: var(--muted); }
.consent-scope li::before { content: "\2713"; position: absolute; left: 0; top: 0;
  color: var(--ok); font-weight: 700; }

.consent-mark { display: flex; align-items: center; justify-content: center; width: 3rem; height: 3rem;
  border-radius: var(--r-md); background: var(--info-bg); color: var(--accent); margin-bottom: var(--space-4); }

.footnote { margin-top: var(--space-5); color: var(--muted); font-size: var(--text-sm); text-align: center; }

/* ---- Skeletons, modal ---------------------------------------------------------------- */

.skeleton-stack { display: block; }
.skeleton { border-radius: 6px;
  background: linear-gradient(90deg, var(--panel-2) 25%, var(--line) 50%, var(--panel-2) 75%);
  background-size: 200% 100%; }
.skeleton-line { height: .85rem; margin: .6rem 0; }
.skeleton-line.w80 { width: 80%; }
.skeleton-line.w60 { width: 60%; }
.skeleton-line.w40 { width: 40%; }

dialog.modal { border: 1px solid var(--line-strong); border-radius: var(--r-lg);
  background: var(--panel); color: var(--text); padding: 0; width: min(100% - 2rem, 26rem);
  box-shadow: var(--shadow-2); }
dialog.modal::backdrop { background: rgba(3, 6, 12, .62); backdrop-filter: blur(3px); }
.modal-body { padding: var(--space-5) var(--space-5) var(--space-2); }
.modal-body h2 { margin: 0 0 var(--space-2); }
.modal-message { margin: 0 0 var(--space-3); color: var(--muted); font-size: var(--text-sm); }
.modal-actions { display: flex; justify-content: flex-end; gap: var(--space-3);
  padding: var(--space-3) var(--space-5) var(--space-5); }

/* ---- Motion, responsive ------------------------------------------------------------------- */

@media (prefers-reduced-motion: no-preference) {
  button, .button, .sidenav a, #nav a { transition: background-color .12s ease, color .12s ease, border-color .12s ease, filter .12s ease; }
  button:hover:not(:disabled) { filter: brightness(1.07); }
  button.secondary:hover:not(:disabled), button.danger:hover:not(:disabled) { filter: none; }
  .spinner { animation: spin .8s linear infinite; }
  .skeleton { animation: shimmer 1.4s ease infinite; }
  .toast { animation: toast-in .18s ease; }
  dialog.modal[open] { animation: modal-in .16s ease; }
}
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes shimmer { to { background-position: -200% 0; } }
@keyframes toast-in { from { opacity: 0; transform: translateY(.4rem); } }
@keyframes modal-in { from { opacity: 0; transform: translateY(.4rem) scale(.98); } }

@media (max-width: 56rem) {
  .shell { grid-template-columns: 1fr; padding-top: var(--space-4); }
  .sidenav { position: static; flex-direction: row; gap: var(--space-4); overflow-x: auto;
    padding-bottom: var(--space-2); }
  .side-group { flex-direction: row; align-items: center; gap: 2px; }
  .side-label { margin: 0 var(--space-2) 0 0; padding: 0; }
  .sidenav a { border-left: 0; border-bottom: 2px solid transparent; border-radius: var(--r-sm) var(--r-sm) 0 0; white-space: nowrap; }
  .sidenav a[aria-current="page"] { border-bottom-color: var(--accent); }
  .user-name { display: none; }
  .user-chip { padding: .2rem; }
}

@media (max-width: 40rem) {
  .table-wrap { border: 0; overflow-x: visible; }
  .table-wrap table, .table-wrap tbody { display: block; }
  .table-wrap thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
  .table-wrap tr { display: block; padding: var(--space-3) var(--space-4); border: 1px solid var(--line);
    border-radius: var(--r-md); margin-bottom: var(--space-3); background: var(--panel-2); }
  .table-wrap tbody tr + tr { border-top: 1px solid var(--line); }
  .table-wrap td { display: flex; align-items: baseline; justify-content: space-between;
    gap: var(--space-4); padding: .3rem 0; }
  .table-wrap td::before { content: attr(data-label); flex: none; color: var(--muted);
    font-size: var(--text-xs); font-weight: 650; text-transform: uppercase; letter-spacing: .06em; }
  .table-wrap td[data-label=""]::before { content: none; }
  .table-wrap td[data-label=""] { justify-content: flex-end; }
  .table-wrap td.right { text-align: left; }
  td select { flex: 1; }
  .kv { grid-template-columns: 1fr; }
  .kv dt { margin-top: var(--space-2); }
  .kv dt:first-child { margin-top: 0; }
  .secret { flex-direction: column; }
  .toasts { left: var(--space-4); right: var(--space-4); width: auto; }
}