/* HIT-Share — Oberfläche "Orbit".
 *
 * Randbedingung, die den Entwurf prägt: die CSP erlaubt nur `style-src 'self'`
 * und `script-src 'self'` — keine Webfonts, keine CDNs, kein Inline-Style.
 * Der Charakter entsteht deshalb aus der BEHANDLUNG von Systemschriften
 * (Versalien mit weiter Laufweite als Gerätebeschriftung, Monospace mit
 * tabular-nums für alles Gemessene) und aus CSS-Effekten ohne fremde Assets.
 *
 * `img-src 'self' data:` ist gesetzt, deshalb sind data:-SVG als
 * background-image erlaubt (Korntextur) — das braucht keine CSP-Änderung.
 *
 * Dynamische Werte kommen ausschliesslich über Custom Properties
 * (el.style.setProperty('--p', …)), nie über ein style-Attribut im Markup.
 */

@layer tokens, base, layout, components, viz, utils;

/* ══════════════════════════════════════════════════════════ TOKENS ══ */
@layer tokens {
  :root {
    /* Dunkel "Deep Space" — Kontraste geprüft, Textstufen ≥ 6:1 */
    --bg-0: #06090F;
    --bg-1: #0A0F1A;
    --surface-1: #0E1526;
    --surface-2: #141D33;
    --surface-3: #1B2742;
    --line-1: #1E2B45;
    --line-2: #2B3C5E;
    --border-control: #60759B;   /* 3.19:1 — WCAG 1.4.11 für Bedienränder */
    --text-1: #E8EEFA;           /* 15.63:1 */
    --text-2: #A3B2CC;           /*  8.49:1 */
    --text-3: #8A9AB8;           /*  6.41:1 */
    --accent: #35E0EC;
    --accent-ink: #041318;
    --accent-2: #9C6BFF;
    --ok: #43DD9B;
    --warn: #FFC24D;
    --err: #FF7085;
    --focus: #7FE9FF;
    --viz-1: #10A6AD;
    --viz-2: #7E4EDB;
    --shadow: 0 18px 50px -24px rgb(0 0 0 / .85);

    --f-ui: ui-sans-serif, system-ui, "Segoe UI Variable Text", -apple-system,
            "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
    --f-data: ui-monospace, "SF Mono", "Cascadia Mono", "Segoe UI Mono",
              "Roboto Mono", Menlo, Consolas, "Liberation Mono", monospace;

    --t-hero: clamp(2.1rem, 1.2rem + 3.6vw, 3.4rem);
    --t-h1: clamp(1.5rem, 1.1rem + 1.5vw, 2.15rem);
    --t-h2: clamp(1.15rem, 1rem + .6vw, 1.4rem);
    --t-body: .95rem;
    --t-small: .83rem;
    --t-micro: .72rem;

    --sp: .5rem;
    --radius: 10px;
    --bevel: 14px;               /* Grösse der abgeschrägten Ecke */
    --speed: .18s;
  }

  /* Hell "Daylight Orbit" — greift automatisch, wird vom Umschalter
     (data-theme) in BEIDE Richtungen überstimmt. */
  @media (prefers-color-scheme: light) {
    :root:not([data-theme="dark"]) {
      --bg-0: #EEF3FA; --bg-1: #F7FAFE;
      --surface-1: #FFFFFF; --surface-2: #F2F6FC; --surface-3: #FFFFFF;
      --line-1: #D9E3F1; --line-2: #B9C8DE; --border-control: #7A8AA3;
      --text-1: #0A1120; --text-2: #47566F; --text-3: #59677E;
      --accent: #06788F; --accent-ink: #FFFFFF; --accent-2: #6B34D6;
      --ok: #0E7A52; --warn: #8A5A00; --err: #C42033; --focus: #0B6FA8;
      --viz-1: #0F97A6; --viz-2: #5B20B5;
      --shadow: 0 14px 38px -22px rgb(16 30 60 / .35);
    }
  }
  :root[data-theme="light"] {
    --bg-0: #EEF3FA; --bg-1: #F7FAFE;
    --surface-1: #FFFFFF; --surface-2: #F2F6FC; --surface-3: #FFFFFF;
    --line-1: #D9E3F1; --line-2: #B9C8DE; --border-control: #7A8AA3;
    --text-1: #0A1120; --text-2: #47566F; --text-3: #59677E;
    --accent: #06788F; --accent-ink: #FFFFFF; --accent-2: #6B34D6;
    --ok: #0E7A52; --warn: #8A5A00; --err: #C42033; --focus: #0B6FA8;
    --viz-1: #0F97A6; --viz-2: #5B20B5;
    --shadow: 0 14px 38px -22px rgb(16 30 60 / .35);
  }

  /* Ohne Registrierung ist ein Winkel nicht interpolierbar — der
     rotierende Rand am aktiven Element hinge sonst starr. */
  @property --angle {
    syntax: "<angle>"; initial-value: 0deg; inherits: false;
  }
}

/* ════════════════════════════════════════════════════════════ BASE ══ */
@layer base {
  *, *::before, *::after { box-sizing: border-box; }

  body {
    margin: 0;
    background: var(--bg-0);
    color: var(--text-1);
    font: var(--t-body)/1.6 var(--f-ui);
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
    position: relative;
  }

  /* Tiefe aus drei Ebenen: driftende Aurora, feines Korn gegen Banding,
     Raster nach aussen ausgeblendet. Alles rein aus CSS. */
  body::before {
    content: ""; position: fixed; inset: 0; z-index: -2; pointer-events: none;
    background:
      radial-gradient(60% 45% at 12% 0%,
        color-mix(in oklab, var(--accent) 12%, transparent), transparent 70%),
      radial-gradient(50% 40% at 92% 8%,
        color-mix(in oklab, var(--accent-2) 13%, transparent), transparent 72%),
      radial-gradient(70% 50% at 50% 100%,
        color-mix(in oklab, var(--accent-2) 7%, transparent), transparent 75%);
    animation: drift 64s ease-in-out infinite alternate;
  }
  body::after {
    content: ""; position: fixed; inset: 0; z-index: -1; pointer-events: none;
    opacity: .04;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)'/%3E%3C/svg%3E");
  }
  @keyframes drift {
    to { transform: translate3d(0, -2.5%, 0) scale(1.06); }
  }

  a { color: var(--accent); text-decoration: none; }
  a:hover { text-decoration: underline; }

  /* Es gab bisher KEINE einzige Fokusregel — hier global nachgeholt. */
  :focus-visible {
    outline: 2px solid var(--focus);
    outline-offset: 2px;
    border-radius: 3px;
  }

  code, .mono, .num {
    font-family: var(--f-data);
    font-variant-numeric: tabular-nums;
  }
  code {
    background: var(--surface-3); padding: .1em .4em;
    border-radius: 4px; font-size: .9em;
  }

  h1 { font-size: var(--t-h1); letter-spacing: -.021em; line-height: 1.18;
       margin: 0 0 1rem; text-wrap: balance; font-weight: 660; }
  h2 { font-size: var(--t-h2); letter-spacing: -.015em; margin: 0 0 .75rem;
       font-weight: 640; }
  h3 { font-size: 1.02rem; margin: 1.2rem 0 .5rem; font-weight: 640; }
  p { max-width: 68ch; }
}

/* ══════════════════════════════════════════════════════════ LAYOUT ══ */
@layer layout {
  .topbar {
    display: flex; align-items: center; gap: 1.5rem;
    padding: .7rem 1.25rem;
    background: color-mix(in oklab, var(--bg-1) 82%, transparent);
    backdrop-filter: blur(14px) saturate(1.3);
    border-bottom: 1px solid var(--line-1);
    position: sticky; top: 0; z-index: 50;
  }
  .topbar .brand {
    font-weight: 680; font-size: 1.02rem; color: var(--text-1);
    letter-spacing: -.01em; display: inline-flex; align-items: center; gap: .55rem;
  }
  /* Wortmarke mit pulsierendem Kern — die einzige "Logo"-Geste, reines CSS */
  .topbar .brand::before {
    content: ""; width: 15px; height: 15px; border-radius: 50%;
    background:
      radial-gradient(circle at 35% 35%, var(--accent) 0 28%, transparent 30%),
      conic-gradient(from 0deg, var(--accent), var(--accent-2), var(--accent));
    box-shadow: 0 0 14px -2px color-mix(in oklab, var(--accent) 70%, transparent);
    animation: pulse 4s ease-in-out infinite;
  }
  @keyframes pulse { 50% { box-shadow: 0 0 20px 1px
      color-mix(in oklab, var(--accent) 85%, transparent); } }

  .topbar nav {
    display: flex; gap: .35rem; align-items: center; margin-left: auto;
    flex-wrap: wrap;
  }
  .topbar nav a, .topbar nav button.linklike {
    color: var(--text-2); padding: .4rem .7rem; border-radius: 7px;
    font-size: var(--t-small); font-weight: 560; transition: var(--speed);
  }
  .topbar nav a:hover, .topbar nav button.linklike:hover {
    color: var(--text-1); background: var(--surface-2); text-decoration: none;
  }
  form.inline { display: inline; }
  button.linklike { background: none; border: none; cursor: pointer;
                    font: inherit; }

  main { padding: 1.5rem 1.25rem 4rem; max-width: 1500px; margin: 0 auto; }
}

/* ══════════════════════════════════════════════════════ COMPONENTS ══ */
@layer components {
  /* Karte mit abgeschrägter Ecke. Weil clip-path den Rand mitschneidet,
     entsteht die 1px-Kontur über ein Pseudo-Element mit mask-composite. */
  .card {
    position: relative;
    background: linear-gradient(160deg,
      color-mix(in oklab, var(--surface-1) 96%, var(--accent) 4%),
      var(--surface-1) 55%);
    padding: 1.35rem 1.4rem;
    margin-bottom: 1.4rem;
    box-shadow: var(--shadow);
    clip-path: polygon(0 0, calc(100% - var(--bevel)) 0,
                       100% var(--bevel), 100% 100%, 0 100%);
  }
  .card::before {
    content: ""; position: absolute; inset: 0; pointer-events: none;
    clip-path: inherit;
    padding: 1px;
    background: linear-gradient(160deg,
      color-mix(in oklab, var(--accent) 35%, transparent),
      var(--line-2) 40%, var(--line-1));
    -webkit-mask: linear-gradient(#000 0 0) content-box,
                  linear-gradient(#000 0 0);
    mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    -webkit-mask-composite: xor; mask-composite: exclude;
  }
  .card.narrow { max-width: 460px; margin: 3.5rem auto; }

  /* Abschnittsmarke: die "Signatur"-Rolle der Typografie */
  .eyebrow, .card > h2::before {
    font-size: var(--t-micro); font-weight: 660; letter-spacing: .18em;
    text-transform: uppercase; color: var(--text-3);
  }

  /* ── Buttons ─────────────────────────────────────────────── */
  button, .btn {
    font: 560 var(--t-small)/1 var(--f-ui);
    padding: 0 1rem; min-height: 38px;
    display: inline-flex; align-items: center; justify-content: center;
    gap: .45rem;
    border: 1px solid var(--border-control);
    background: var(--surface-2); color: var(--text-1);
    border-radius: 8px; cursor: pointer;
    transition: var(--speed);
  }
  button:hover:not(:disabled) {
    border-color: color-mix(in oklab, var(--accent) 60%, var(--border-control));
    background: var(--surface-3);
    transform: translateY(-1px);
  }
  button:active:not(:disabled) { transform: translateY(0); }
  button:disabled { opacity: .45; cursor: not-allowed; }

  button.primary, .btn.primary {
    background: linear-gradient(100deg, var(--accent), var(--accent-2));
    color: var(--accent-ink); border-color: transparent; font-weight: 640;
    box-shadow: 0 6px 20px -8px color-mix(in oklab, var(--accent) 75%, transparent);
  }
  button.primary:hover:not(:disabled) {
    filter: brightness(1.08);
    box-shadow: 0 10px 26px -8px color-mix(in oklab, var(--accent) 85%, transparent);
  }
  button.danger {
    color: var(--err);
    border-color: color-mix(in oklab, var(--err) 45%, var(--border-control));
  }
  button.danger:hover:not(:disabled) {
    background: color-mix(in oklab, var(--err) 14%, var(--surface-2));
    border-color: var(--err);
  }
  /* Zeilenaktionen waren 3px hoch — unter jeder Zielgrösse. */
  .rowactions button { min-height: 30px; padding: 0 .7rem;
                       font-size: var(--t-micro); }

  /* ── Formulare ───────────────────────────────────────────── */
  label {
    display: block; margin: .9rem 0 .3rem;
    font-size: var(--t-micro); font-weight: 660; letter-spacing: .14em;
    text-transform: uppercase; color: var(--text-3);
  }
  input, select, textarea {
    width: 100%; padding: .6rem .75rem;
    background: var(--surface-3); color: var(--text-1);
    border: 1px solid var(--border-control); border-radius: 8px;
    font: var(--t-body) var(--f-ui);
    transition: var(--speed);
  }
  input:hover, select:hover { border-color: var(--text-3); }
  input:focus, select:focus, textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px color-mix(in oklab, var(--accent) 22%, transparent);
    outline: none;
  }
  input[type="checkbox"] {
    width: 17px; height: 17px; accent-color: var(--accent);
    vertical-align: middle;
  }
  /* Label steht VOR dem Feld — Geschwisterselektor greift nicht, :has() schon */
  label:has(> input:focus), label:has(> select:focus) { color: var(--accent); }

  .formrow {
    display: flex; gap: .6rem; align-items: center; flex-wrap: wrap;
    margin: .9rem 0;
  }
  .formrow input, .formrow select { width: auto; flex: 1 1 150px; margin: 0; }
  .formrow label {
    display: inline-flex; align-items: center; gap: .4rem; margin: 0;
    text-transform: none; letter-spacing: 0; font-size: var(--t-small);
    color: var(--text-2);
  }
  .formrow label input[type="checkbox"] { width: auto; flex: none; }

  /* ── Meldungen ───────────────────────────────────────────── */
  .error, .ok, .hint {
    font-size: var(--t-small); margin: .6rem 0;
    display: flex; align-items: flex-start; gap: .5rem;
  }
  .error { color: var(--err); }
  .ok { color: var(--ok); }
  .hint { color: var(--text-3); }
  .error::before { content: "!"; font-weight: 700; }
  .ok::before { content: "✓"; }

  .badge {
    font-size: var(--t-micro); font-weight: 660; letter-spacing: .1em;
    text-transform: uppercase;
    padding: .15em .5em; border-radius: 5px;
    background: color-mix(in oklab, var(--warn) 18%, transparent);
    color: var(--warn);
    border: 1px solid color-mix(in oklab, var(--warn) 40%, transparent);
  }

  /* ── Tabs: Zustand hängt an aria-selected, nicht an einer Klasse,
        damit Optik und Screenreader nicht auseinanderlaufen können. ── */
  .tabs {
    display: flex; gap: .2rem; margin-bottom: 1.2rem;
    border-bottom: 1px solid var(--line-1);
  }
  .tab {
    background: none; border: none; border-radius: 0;
    color: var(--text-3); padding: .6rem .9rem; min-height: 40px;
    font-size: var(--t-small); font-weight: 600;
    position: relative;
  }
  .tab:hover { color: var(--text-1); background: none; transform: none; }
  .tab[aria-selected="true"], .tab.active { color: var(--text-1); }
  .tab[aria-selected="true"]::after, .tab.active::after {
    content: ""; position: absolute; left: .5rem; right: .5rem; bottom: -1px;
    height: 2px; border-radius: 2px;
    background: linear-gradient(90deg, var(--accent), var(--accent-2));
    box-shadow: 0 0 12px -1px color-mix(in oklab, var(--accent) 70%, transparent);
  }

  /* ── Tabellen ────────────────────────────────────────────── */
  table { width: 100%; border-collapse: collapse; margin: .5rem 0; }
  th {
    text-align: left; padding: .55rem .7rem;
    font-size: var(--t-micro); font-weight: 660; letter-spacing: .14em;
    text-transform: uppercase; color: var(--text-3);
    border-bottom: 1px solid var(--line-2);
    white-space: nowrap;
  }
  td {
    padding: .6rem .7rem; border-bottom: 1px solid var(--line-1);
    font-size: var(--t-small);
  }
  tbody tr { transition: var(--speed); }
  tbody tr:hover { background: color-mix(in oklab, var(--accent) 5%, transparent); }
  td input { margin: 0; }
  .rowactions { text-align: right; white-space: nowrap; }
  .rowactions button + button { margin-left: .35rem; }

  /* Rechte-Matrix: die vier Schalter tragen ihren Buchstaben sichtbar,
     gesetzt = Verlauf statt Häkchen — über viele Shares hinweg lesbar. */
  .matrix td.permcell { white-space: nowrap; }
  .matrix td.permcell label {
    display: inline-flex; flex-direction: column; align-items: center;
    gap: 2px; margin: 0 3px 0 0; padding: 0;
    font-size: 10px; font-weight: 700; letter-spacing: .04em;
    color: var(--text-3); cursor: pointer; text-transform: none;
  }
  .matrix td.permcell input { width: 22px; height: 22px; }
  .matrix td.permcell label:has(input:checked) { color: var(--accent); }

  /* ── Dialog statt alert()/confirm()/prompt() ─────────────── */
  dialog {
    border: none; padding: 0; background: transparent;
    color: var(--text-1); max-width: 440px; width: calc(100% - 2rem);
  }
  dialog::backdrop {
    background: color-mix(in oklab, var(--bg-0) 78%, transparent);
    backdrop-filter: blur(4px);
  }
  dialog .card { margin: 0; }
  dialog h2 { margin-bottom: .4rem; }
  .dialog-actions {
    display: flex; gap: .6rem; justify-content: flex-end; margin-top: 1.2rem;
  }
}

/* ═══════════════════════════════════════════════ BROWSER / SCREENS ══ */
@layer components {
  .browser { display: grid; grid-template-columns: 260px 1fr; gap: 1.4rem; }
  @media (max-width: 860px) { .browser { grid-template-columns: 1fr; } }

  .sidebar h2 { font-size: var(--t-micro); letter-spacing: .18em;
                text-transform: uppercase; color: var(--text-3); }
  .sharelist { list-style: none; margin: 0 0 1.3rem; padding: 0; }
  .sharelist li a {
    display: block; padding: .5rem .7rem; border-radius: 8px;
    color: var(--text-2); font-size: var(--t-small); font-weight: 560;
    transition: var(--speed);
  }
  .sharelist li a:hover {
    background: var(--surface-2); color: var(--text-1); text-decoration: none;
  }
  .sharelist li.active a {
    background: color-mix(in oklab, var(--accent) 14%, var(--surface-2));
    color: var(--text-1); font-weight: 640;
    box-shadow: inset 2px 0 0 var(--accent);
  }

  .pathbar {
    display: flex; align-items: center; gap: 1rem; margin-bottom: 1rem;
    flex-wrap: wrap;
  }
  #breadcrumbs { flex: 1; font-size: var(--t-small); color: var(--text-3); }
  #breadcrumbs a { color: var(--text-2); }
  #breadcrumbs a:last-child { color: var(--text-1); font-weight: 640; }
  .pathbar input[type="search"] { max-width: 280px; margin: 0; }

  .toolbar { display: flex; gap: .5rem; margin-bottom: 1rem; flex-wrap: wrap; }

  .filetable td.name a { color: var(--text-1); font-weight: 560; }
  .filetable td.name a:hover { color: var(--accent); }

  /* Dateityp-Marker ohne Icon-Set: die Endung IST das Icon. Farbe kommt aus
     --ft, das je Typ überschrieben wird; Unbekanntes fällt auf Grau zurück. */
  .fname { display: inline-flex; align-items: center; gap: .6rem; }
  .fname[data-ext]:not([data-ext=""])::before {
    content: attr(data-ext);
    --ft: var(--text-3);
    font: 700 9px/1 var(--f-data);
    letter-spacing: .06em; text-transform: uppercase;
    padding: 5px 5px 4px; min-width: 34px; text-align: center;
    border-radius: 4px;
    color: var(--ft);
    background: color-mix(in oklab, var(--ft) 16%, transparent);
    border: 1px solid color-mix(in oklab, var(--ft) 40%, transparent);
  }
  .fname[data-ext="pdf"]::before { --ft: var(--err); }
  .fname[data-ext="xlsx"]::before, .fname[data-ext="xls"]::before,
  .fname[data-ext="csv"]::before { --ft: var(--ok); }
  .fname[data-ext="docx"]::before, .fname[data-ext="doc"]::before,
  .fname[data-ext="txt"]::before { --ft: var(--accent); }
  .fname[data-ext="dwg"]::before, .fname[data-ext="dxf"]::before { --ft: var(--accent-2); }
  .fname[data-ext="zip"]::before, .fname[data-ext="7z"]::before,
  .fname[data-ext="tar"]::before, .fname[data-ext="gz"]::before { --ft: var(--warn); }
  .fname[data-ext="png"]::before, .fname[data-ext="jpg"]::before,
  .fname[data-ext="jpeg"]::before, .fname[data-ext="svg"]::before { --ft: var(--viz-1); }
  .fname.is-dir::before {
    content: ""; width: 15px; height: 12px; min-width: 0; padding: 0;
    border-radius: 2px 3px 3px 3px;
    background: linear-gradient(150deg, var(--accent), var(--accent-2));
    box-shadow: 0 0 10px -3px color-mix(in oklab, var(--accent) 80%, transparent);
    border: none;
    clip-path: polygon(0 15%, 42% 15%, 52% 0, 100% 0, 100% 100%, 0 100%);
  }

  /* Verbrauchsring: Wert kommt aus --p (CSSOM), Loch per Maske. */
  /* Der Ring liegt im Pseudo-Element: eine Maske auf dem Container würde
     auch den Prozentwert in der Mitte wegschneiden. */
  .usage-ring {
    width: 92px; height: 92px; margin: .2rem auto .9rem;
    position: relative; display: grid; place-items: center;
  }
  .usage-ring::before {
    content: ""; position: absolute; inset: 0; border-radius: 50%;
    background: conic-gradient(from -90deg,
      var(--viz-1) calc(var(--p, 0) * 1%), var(--viz-2) 0);
    -webkit-mask: radial-gradient(farthest-side, transparent 63%, #000 64%);
    mask: radial-gradient(farthest-side, transparent 63%, #000 64%);
  }
  .usage-ring-val {
    position: relative; z-index: 1;
    font: 700 .95rem var(--f-data); color: var(--text-1);
  }
  .usage-list {
    display: grid; grid-template-columns: 1fr auto; gap: .15rem .8rem;
    margin: 0; font-size: var(--t-small);
  }
  .usage-list dt { color: var(--text-3); font-size: var(--t-micro);
                   letter-spacing: .08em; text-transform: uppercase; }
  .usage-list dd { margin: 0; text-align: right; color: var(--text-1);
                   font-family: var(--f-data); font-variant-numeric: tabular-nums; }
  .filetable td:nth-child(2), .filetable td:nth-child(3) {
    font-family: var(--f-data); font-variant-numeric: tabular-nums;
    color: var(--text-3); font-size: var(--t-micro);
  }

  /* Fortschritt: Breite kommt aus --p (per CSSOM gesetzt), nie aus style="" */
  #upload-progress {
    margin: .8rem 0; font-size: var(--t-small); color: var(--text-2);
    font-family: var(--f-data);
    padding: .7rem .9rem; border-radius: 8px;
    background: var(--surface-2);
    border: 1px solid var(--line-2);
    position: relative; overflow: hidden;
  }
  #upload-progress::after {
    content: ""; position: absolute; left: 0; bottom: 0; height: 2px;
    width: calc(var(--p, 0) * 1%);
    background: linear-gradient(90deg, var(--accent), var(--accent-2));
    transition: width .3s ease;
  }

  #usage-card { padding: 1rem 1.1rem; }
  #usage-body {
    font-size: var(--t-small); color: var(--text-2);
    font-family: var(--f-data); font-variant-numeric: tabular-nums;
    line-height: 1.9;
  }
}

/* ═════════════════════════════════════════════════════════════ UTILS ══ */
@layer utils {
  .hidden { display: none !important; }
  .panel.hidden { display: none !important; }
}

/* ════════════════════════════════════════════ ZUGÄNGLICHKEITSMODI ══ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important; animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
  body::before { animation: none; }
}
@media (prefers-contrast: more) {
  body::before, body::after { display: none; }
  .card { backdrop-filter: none; }
  .card::before { padding: 2px; }
  input, select, button { border-width: 2px; }
}
@media (forced-colors: active) {
  body::before, body::after, .card::before,
  .topbar .brand::before { display: none; }
  .card { border: 1px solid CanvasText; }
  .tab[aria-selected="true"]::after { background: Highlight; }
}

/* ────────────────────────────────────────── Feinschliff ──────────── */
@layer components {
  /* Auf der Login-Karte ist der Primärbutton die einzige Aktion — volle
     Breite macht das Ziel gross und die Karte ruhiger. */
  .card.narrow form > button.primary { width: 100%; margin-top: .4rem; }
  .card.narrow h1 { margin-bottom: .3rem; }

  /* Der Kartenkopf bekommt die Signatur-Marke darüber. */
  .card.narrow h1::before {
    content: "Gesicherter Zugang"; display: block;
    font-size: var(--t-micro); font-weight: 660; letter-spacing: .18em;
    text-transform: uppercase; color: var(--text-3); margin-bottom: .5rem;
  }
  #breadcrumbs { font-size: var(--t-body); }
}