/* Login-Screen (SPEC-0014) — 1:1-Port der scoped-Styles aus
 * core-frontend/components/AppLoginScreen.vue (Light DOM, Klassen-Selektoren
 * unverändert; Vue-scoped-Attribute entfallen). Abweichung erste Welle:
 * Der Header ist eine statische Leiste (AvengersHeader-Animationen folgen
 * mit der Header-Welle), Icons sind Unicode-Platzhalter statt Material-Font
 * (Material-Icons-Vendoring steht als eigener Schritt an). */

.login-shell {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  background: var(--surface);
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.login-scene {
  position: absolute;
  inset: 48px 0 0;
  pointer-events: none;
  overflow: hidden;
}

.scene-grid {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(circle at center, black 0%, transparent 74%);
  transform: perspective(900px) rotateX(58deg) translateY(10%);
  transform-origin: center bottom;
  opacity: 0.58;
}

.scene-core {
  position: absolute;
  width: 42vmax;
  aspect-ratio: 1;
  border: 1px solid var(--primary);
  border-radius: 50%;
  background:
    radial-gradient(circle, var(--primary-soft), transparent 58%),
    conic-gradient(
      from 90deg,
      transparent 0 8%,
      var(--primary) 12% 26%,
      transparent 32% 54%,
      color-mix(in srgb, var(--primary) 60%, transparent) 60% 74%,
      transparent 80% 100%
    );
  filter: blur(0.2px);
  opacity: 0.72;
  animation: slow-rotate 18s linear infinite;
}

.scene-core--left {
  left: -12vmax;
  top: 14%;
}

.scene-core--right {
  right: -14vmax;
  bottom: -18%;
  animation-direction: reverse;
}

.scene-beam {
  position: absolute;
  height: 2px;
  width: 52vmax;
  background: linear-gradient(90deg, transparent, var(--primary), transparent);
  box-shadow: 0 0 28px var(--primary-soft);
  transform: rotate(-18deg);
  opacity: 0.72;
}

.scene-beam--one {
  top: 30%;
  left: -10%;
}

.scene-beam--two {
  right: -14%;
  bottom: 24%;
  transform: rotate(-18deg);
  opacity: 0.45;
}

.scene-ring {
  position: absolute;
  left: 50%;
  top: 52%;
  width: min(74vw, 980px);
  aspect-ratio: 1 / 0.54;
  border: 1px solid var(--border);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  box-shadow: var(--shadow-overlay);
}

/* Erste Welle: statische Header-Leiste mit Token-Chrome (siehe Kopfnotiz). */
.login-header {
  position: relative;
  z-index: 3;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 12px;
  background: var(--surface-elevated);
  border-bottom: 1px solid var(--border);
}

.login-header-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.menu-button {
  width: 30px;
  height: 30px;
  border: none;
  background: transparent;
  color: var(--text);
  display: grid;
  place-items: center;
  opacity: 0.95;
}

.header-title {
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
  color: var(--text);
}

.login-main {
  flex: 1;
  display: grid;
  place-items: center;
  position: relative;
  z-index: 2;
  padding: 44px 24px;
}

.login-panel {
  width: min(690px, calc(100vw - 72px));
  position: relative;
  overflow: hidden;
  border-radius: 10px;
  border: 1px solid var(--border-strong);
  background: var(--surface-elevated);
  box-shadow: var(--shadow-overlay);
  padding: 24px;
  display: grid;
  grid-template-columns: minmax(280px, 420px);
  justify-content: center;
}

.login-panel::before,
.login-panel::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.login-panel::before {
  background: var(--surface-elevated);
  opacity: 0.28;
}

.login-panel::after {
  border: 1px solid var(--border);
  inset: 8px;
}

.panel-orbit {
  position: absolute;
  left: 22px;
  right: 22px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--primary), transparent);
  box-shadow: 0 0 18px var(--primary-soft);
}

.panel-orbit--top {
  top: 13px;
}

.panel-orbit--bottom {
  bottom: 13px;
  background: linear-gradient(90deg, transparent, var(--warning), transparent);
  box-shadow: 0 0 18px var(--warning-soft);
}

.login-brand {
  position: relative;
  z-index: 1;
  display: flex;
  gap: 18px;
  align-items: center;
  margin-bottom: 22px;
}

.login-brand-kicker {
  display: block;
  margin-bottom: 4px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--primary);
  text-shadow: none;
}

.login-brand h1 {
  margin: 0;
  font-size: 38px;
  line-height: 1.08;
  font-weight: 700;
  color: var(--text);
}

.login-brand p {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.45;
  color: var(--text-muted);
}

.login-form {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.login-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.login-field span {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
}

.login-field input {
  height: 42px;
  border-radius: 8px;
  border: 1px solid var(--control-border, var(--border));
  background: var(--control-bg, var(--surface));
  color: var(--text);
  padding: 0 14px;
  font-size: 15px;
  outline: none;
  transition: border-color 160ms ease, box-shadow 160ms ease;
}

.login-field input::placeholder {
  color: var(--text-soft);
}

/* SPEC-0646 — Klasse C: Ring vorhanden, aber auf `:focus`. Fuer ein Textfeld
   verhaltensgleich; `:focus-visible` ist die Form, die der Waechter als
   Gegenstueck zum `outline: none` oben erkennt. */
.login-field input:focus-visible {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-soft);
}

.login-message {
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 13px;
  border: 1px solid var(--primary);
  background: var(--primary-soft);
  color: var(--primary);
}

.login-message--error {
  border-color: var(--danger);
  background: var(--danger-soft);
  color: var(--danger);
}

.login-submit {
  height: 44px;
  border: none;
  border-radius: 8px;
  background: var(--primary);
  color: var(--text-inverse);
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: var(--shadow-card);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.login-submit:disabled {
  opacity: 0.72;
  cursor: progress;
}

.login-header-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.lang-select,
.theme-select {
  display: flex;
  align-items: center;
  gap: 6px;
  height: 32px;
  padding: 0 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface-elevated);
  font-family: inherit;
}

@keyframes slow-rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes loginPanelBreath {
  0%, 100% {
    box-shadow:
      0 24px 70px rgba(0, 0, 0, 0.42),
      0 0 0 1px rgba(255, 255, 255, 0.04),
      0 0 48px rgba(14, 165, 233, 0.2);
  }
  50% {
    box-shadow:
      0 28px 90px rgba(0, 0, 0, 0.5),
      0 0 0 1px rgba(125, 211, 252, 0.12),
      0 0 76px rgba(34, 211, 238, 0.36),
      0 0 120px rgba(245, 158, 11, 0.14);
  }
}

@keyframes loginPanelScanPan {
  0%, 100% { background-position: 0% 0%, 0% 0%; }
  50% { background-position: 100% 0%, 0% 0%; }
}

@keyframes loginPanelOrbitSweep {
  from { background-position: -50% 0; }
  to { background-position: 150% 0; }
}

.lang-select select,
.theme-select select {
  background: transparent;
  color: var(--text);
  border: none;
  padding: 0;
  border-radius: 0;
  font-size: 12px;
  height: 100%;
  font-family: inherit;
}

.lang-select .material-icons,
.theme-select .material-icons {
  font-size: 18px;
  opacity: 0.88;
}

@media (max-width: 640px) {
  .login-main {
    padding: 12px;
  }

  .login-panel {
    width: min(100vw - 24px, 980px);
    padding: 22px 14px 18px;
    border-radius: 10px;
    grid-template-columns: 1fr;
  }

  .login-brand {
    align-items: flex-start;
    gap: 12px;
  }

  .login-brand h1 {
    font-size: 32px;
  }
}

/* Avangers-Theme-Override — 1:1 aus dem Bestand (Schreibweise 'avangers'
 * ist der Bestands-Themename, SPEC-0002). */
html[data-core-theme="avangers"] .login-shell {
  background:
    radial-gradient(circle at 50% 48%, rgba(34, 211, 238, 0.22), transparent 28%),
    radial-gradient(circle at 20% 22%, rgba(15, 118, 255, 0.26), transparent 34%),
    radial-gradient(circle at 83% 82%, rgba(245, 158, 11, 0.16), transparent 30%),
    linear-gradient(135deg, #070b13 0%, #0d1727 43%, #07111b 100%);
}
html[data-core-theme="avangers"] .scene-grid {
  background:
    linear-gradient(rgba(96, 165, 250, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(96, 165, 250, 0.08) 1px, transparent 1px);
}
html[data-core-theme="avangers"] .scene-core {
  border: 1px solid rgba(96, 165, 250, 0.22);
  background:
    radial-gradient(circle, rgba(34, 211, 238, 0.22), transparent 58%),
    conic-gradient(
      from 90deg,
      transparent 0 8%,
      rgba(59, 130, 246, 0.48) 12% 26%,
      transparent 30% 50%,
      rgba(245, 158, 11, 0.42) 56% 70%,
      transparent 76% 100%
    );
  opacity: 0.88;
}
html[data-core-theme="avangers"] .scene-beam {
  background: linear-gradient(90deg, transparent, rgba(34, 211, 238, 0.9), rgba(255, 180, 66, 0.72), transparent);
  box-shadow: 0 0 28px rgba(34, 211, 238, 0.48);
}
html[data-core-theme="avangers"] .scene-ring {
  border: 1px solid rgba(125, 211, 252, 0.2);
  box-shadow:
    inset 0 0 30px rgba(56, 189, 248, 0.08),
    0 0 42px rgba(56, 189, 248, 0.12);
}
html[data-core-theme="avangers"] .login-panel {
  border: 1px solid rgba(125, 211, 252, 0.28);
  background:
    linear-gradient(135deg, rgba(15, 23, 42, 0.94), rgba(17, 24, 39, 0.88)),
    rgba(7, 13, 23, 0.92);
  animation: loginPanelBreath 4.4s ease-in-out infinite;
}
html[data-core-theme="avangers"] .login-panel::before {
  background:
    linear-gradient(90deg, rgba(56, 189, 248, 0.18), transparent 22% 78%, rgba(245, 158, 11, 0.15)),
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.035) 0 1px, transparent 1px 7px);
  background-size: 220% 100%, 100% 100%;
  background-position: 0% 0%, 0% 0%;
  animation: loginPanelScanPan 8.6s ease-in-out infinite;
}
html[data-core-theme="avangers"] .login-panel::after {
  border: 1px solid rgba(255, 255, 255, 0.08);
}
html[data-core-theme="avangers"] .panel-orbit {
  background-size: 300% 100%;
  background-repeat: no-repeat;
  animation: loginPanelOrbitSweep 6.2s linear infinite;
}
html[data-core-theme="avangers"] .panel-orbit--top {
  background-image: linear-gradient(90deg, transparent 0%, rgba(34, 211, 238, 0.82) 18%, transparent 36%, transparent 100%);
  box-shadow: 0 0 18px rgba(34, 211, 238, 0.5);
}
html[data-core-theme="avangers"] .panel-orbit--bottom {
  background-image: linear-gradient(90deg, transparent 0%, rgba(245, 158, 11, 0.72) 18%, transparent 36%, transparent 100%);
  box-shadow: 0 0 18px rgba(245, 158, 11, 0.34);
  animation-direction: reverse;
}
html[data-core-theme="avangers"] .login-brand-kicker {
  color: #7dd3fc;
  text-shadow: 0 0 18px rgba(125, 211, 252, 0.32);
}
html[data-core-theme="avangers"] .login-field input:focus {
  border-color: rgba(34, 211, 238, 0.88);
  box-shadow:
    0 0 0 3px rgba(34, 211, 238, 0.14),
    0 0 24px rgba(34, 211, 238, 0.18);
}
html[data-core-theme="avangers"] .login-submit {
  background:
    linear-gradient(135deg, rgba(14, 165, 233, 0.95), rgba(37, 99, 235, 0.95) 58%, rgba(245, 158, 11, 0.92));
  box-shadow:
    0 12px 28px rgba(14, 165, 233, 0.22),
    0 0 24px rgba(245, 158, 11, 0.16);
}

/* ====== SPEC-0646 — Windows-Kontrastmodus =============================== *
 * Edge/Chromium zeichnen unter `forced-colors: active` KEINEN `box-shadow`
 * und zwingen jede Rahmen- und Flaechenfarbe auf eine Systemfarbe. Damit
 * faellt jeder Fokusring dieses Blattes dort ersatzlos aus — der ring-lose
 * Rahmenwechsel ebenso, weil dann jeder Rahmen dieselbe Farbe traegt.
 * `outline` WIRD gezeichnet und ist das einzige Mittel, das dort traegt.
 * `Highlight` ist die Systemfarbe fuer Auswahl und hebt sich per Definition
 * vom `Canvas` des Nutzers ab; `outline-offset` haelt den Ring von der
 * eigenen Kante frei, die dort ebenfalls `CanvasText` traegt.
 * KEIN `forced-color-adjust: none` — das naehme dem Nutzer genau die
 * Farbwahl, um die es hier geht (SPEC-0646, Entscheidung E3).
 * ====================================================================== */
@media (forced-colors: active) {
  .login-field input:focus-visible {
    outline: 2px solid Highlight;
    outline-offset: 2px;
  }
}