:root {
  --bg: #f3f6fb;
  --bg-deep: #eef2f7;
  --panel: #ffffff;
  --text: #10213a;
  --muted: #5f6f86;
  --border: #d7dfec;
  --primary: #2a5bff;
  --primary-dark: #1e46d0;
  --accent: #11b3a3;
  --danger: #cc2f4a;
  --radius: 14px;
  --shadow: 0 12px 30px rgba(16, 33, 58, 0.08);
  --dock-h: 76px;
  --tile-surface: #ffffff;
  --tile-image-bg: #f0f4fb;
  --input-bg: #ffffff;
  --topbar-bg: rgba(243, 246, 251, 0.82);
  --slot-empty-bg: rgba(255, 255, 255, 0.65);
  --form-label: #243651;
  --topic-tile-fg: #1d2f4f;
  --topic-selected-fg: #173273;
  --interactive-surface: #ffffff;
  --file-link: #153a8a;
  --subtle-fill: #f8faff;
  --thumb-placeholder-bg: #f7f9fd;
  --step-bg: #e9eef9;
  --step-fg: #2d3f5f;
  --step-active-bg: #dfe8ff;
  --step-active-fg: #173273;
  --lehrer-pair-bg: #fffbf5;
  --lehrer-pair-border: #e8a54b;
}

html[data-theme="dark"] {
  --bg: #121820;
  --bg-deep: #0c1016;
  --panel: #161d28;
  --text: #f5f8fd;
  --muted: #c5d4e8;
  --border: #3d4d63;
  --primary: #6d8ef0;
  --primary-dark: #5a7ad9;
  --accent: #5ee0d4;
  --danger: #ff8a9d;
  --shadow: 0 14px 36px rgba(0, 0, 0, 0.45);
  --tile-surface: #1a222e;
  --tile-image-bg: #131a24;
  --input-bg: #0f151c;
  --topbar-bg: rgba(15, 20, 28, 0.88);
  --slot-empty-bg: rgba(22, 29, 40, 0.75);
  --form-label: #e2eaf6;
  --topic-tile-fg: #f2f6ff;
  --topic-selected-fg: #ffffff;
  --interactive-surface: #1e2836;
  --file-link: #9ec5ff;
  --subtle-fill: color-mix(in srgb, var(--panel) 88%, var(--border));
  --thumb-placeholder-bg: #151c26;
  --step-bg: #283445;
  --step-fg: #e8eef7;
  --step-active-bg: color-mix(in srgb, var(--primary) 38%, #1a2230);
  --step-active-fg: #f4f7ff;
  --lehrer-pair-bg: color-mix(in srgb, #d9a545 22%, var(--interactive-surface));
  --lehrer-pair-border: #f0b85a;
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: "Inter", "Segoe UI", Arial, sans-serif;
  min-height: 100vh;
  background-color: var(--bg-deep);
  background-image:
    radial-gradient(ellipse 120% 80% at 50% -20%, rgba(186, 200, 255, 0.35), transparent 55%),
    radial-gradient(ellipse 90% 60% at 100% 50%, rgba(17, 179, 163, 0.08), transparent 45%),
    linear-gradient(165deg, #f8faff 0%, var(--bg) 42%, #e8ecf4 100%);
  background-attachment: fixed;
  color: var(--text);
  position: relative;
}

html[data-theme="dark"] body {
  background-image:
    radial-gradient(ellipse 110% 75% at 50% -18%, rgba(107, 148, 255, 0.14), transparent 52%),
    radial-gradient(ellipse 85% 55% at 100% 45%, rgba(61, 212, 196, 0.06), transparent 48%),
    linear-gradient(165deg, #151c26 0%, var(--bg) 45%, #0a0e14 100%);
}

body::before {
  content: "";
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 0;
  opacity: 0.45;
  background-image: radial-gradient(circle, rgba(16, 33, 58, 0.07) 1px, transparent 1px);
  background-size: 22px 22px;
  mask-image: linear-gradient(to bottom, black 0%, black 70%, transparent 100%);
}

html[data-theme="dark"] body::before {
  opacity: 0.4;
  background-image: radial-gradient(circle, rgba(232, 238, 247, 0.055) 1px, transparent 1px);
}

body > * {
  position: relative;
  z-index: 1;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(8px);
  background: var(--topbar-bg);
  border-bottom: 1px solid var(--border);
}

.topbar-inner {
  max-width: 1024px;
  margin: 0 auto;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.theme-switch {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--panel) 88%, var(--border));
  padding: 2px;
  gap: 0;
}

.theme-switch__btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 30px;
  padding: 0;
  border: none;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition:
    background 0.15s ease,
    color 0.15s ease;
}

.theme-switch__btn:hover {
  color: var(--text);
}

.theme-switch__btn[aria-pressed="true"] {
  background: var(--panel);
  color: var(--primary);
  box-shadow: 0 1px 4px rgba(16, 33, 58, 0.12);
}

html[data-theme="dark"] .theme-switch {
  background: #1e2733;
  border-color: var(--border);
}

html[data-theme="dark"] .theme-switch__btn[aria-pressed="true"] {
  background: #2a3544;
  box-shadow: 0 1px 6px rgba(0, 0, 0, 0.35);
}

.brand {
  font-weight: 700;
  letter-spacing: 0.2px;
}

.container {
  max-width: 1024px;
  margin: 0 auto;
  padding: 24px 16px 40px;
}

.container--with-dock {
  padding-bottom: calc(40px + var(--dock-h));
}

.headline {
  margin: 0 0 8px;
  font-size: 1.8rem;
}

.subline {
  margin: 0 0 18px;
  color: var(--muted);
}

.card {
  background: var(--panel);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 18px;
  margin-bottom: 14px;
  box-shadow: var(--shadow);
}

.card h2 {
  margin-top: 0;
}

.card-muted {
  background: var(--subtle-fill);
}

html[data-theme="dark"] .card-muted {
  background: color-mix(in srgb, var(--panel) 92%, var(--border));
}

.content-admin-selection-hint {
  margin: 0 0 14px;
}

.content-admin-tools {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 16px;
}

.content-admin-tool {
  border-radius: 12px;
  border: 1px solid var(--border);
  padding: 14px 16px;
  background: color-mix(in srgb, var(--panel) 88%, var(--bg-deep));
}

.content-admin-tool--upload {
  border-left: 4px solid var(--primary);
}

.content-admin-tool--batch {
  border-left: 4px solid var(--accent);
}

.content-admin-tool--ai {
  border-left: 4px solid #7c3aed;
}

html[data-theme="dark"] .content-admin-tool--ai {
  border-left-color: #a78bfa;
}

.content-admin-tool .tool-hint {
  margin: 0 0 12px;
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.45;
  font-weight: 500;
}

.content-admin-tool-title {
  margin: 0 0 8px;
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--text);
}

.content-admin-tool-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 8px;
}

.content-admin-tool-head .content-admin-tool-title {
  margin: 0;
}

.content-admin-tool-row {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 12px;
}

.content-admin-tool-row .btn-compact {
  flex: 0 0 auto;
}

.content-admin-batch-grid {
  margin-top: 4px;
}

.content-admin-batch-actions {
  align-items: center;
  align-self: end;
}

.content-admin-ai-mode {
  display: block;
  margin: 0 0 8px;
  max-width: 320px;
}

.content-admin-ai-mode-label {
  display: block;
  margin-bottom: 4px;
  font-size: 0.78rem;
}

.content-admin-ai-mode select {
  margin-top: 0;
}

.content-admin-ai-hint {
  margin: 0 0 12px;
  font-size: 0.8rem;
  line-height: 1.4;
}

.content-admin-ai-actions {
  margin-top: 4px;
}

@media (max-width: 640px) {
  .content-admin-batch-grid {
    grid-template-columns: 1fr;
  }

  .content-admin-batch-actions {
    align-self: stretch;
  }
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

label {
  display: block;
  margin-bottom: 12px;
  font-weight: 600;
  color: var(--form-label);
}

input,
select,
textarea {
  width: 100%;
  margin-top: 6px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--input-bg);
  color: var(--text);
  font-size: 16px;
  font-family: inherit;
}

input:focus,
select:focus,
textarea:focus {
  outline: 2px solid color-mix(in srgb, var(--primary) 55%, #a8bcff);
  border-color: var(--primary);
}

html[data-theme="dark"] input::placeholder,
html[data-theme="dark"] textarea::placeholder {
  color: #9eb3d0;
  opacity: 1;
}

html[data-theme="dark"] input:focus,
html[data-theme="dark"] select:focus,
html[data-theme="dark"] textarea:focus {
  outline-color: color-mix(in srgb, var(--primary) 70%, transparent);
}

.topic-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 10px;
  margin: 12px 0;
}

.topic-grid--tiles {
  grid-template-columns: repeat(auto-fit, minmax(158px, 1fr));
}

@media (max-width: 600px) {
  .topic-grid--tiles {
    grid-template-columns: 1fr;
  }
}

.topic-section-title {
  margin: 0 0 12px;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
}

.grade-btn {
  min-height: 44px;
  padding: 12px 20px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 12px;
  border: 2px solid var(--border);
  background: var(--tile-surface);
  color: var(--text);
  cursor: pointer;
}

.grade-btn.active {
  border-color: var(--primary);
  background: color-mix(in srgb, var(--primary) 14%, var(--tile-surface));
  color: var(--topic-selected-fg);
}

html[data-theme="dark"] .grade-btn {
  border-color: #5d7088;
  color: var(--text);
}

html[data-theme="dark"] .grade-btn.active {
  background: color-mix(in srgb, var(--primary) 32%, var(--tile-surface));
  color: #ffffff;
  border-color: color-mix(in srgb, var(--primary) 80%, #a8bcff);
}

.topic-tile {
  --tile-accent: var(--primary);
  --tile-glow: rgba(42, 91, 255, 0.28);
  touch-action: manipulation;
  position: relative;
  border: 2px solid var(--border);
  border-radius: 14px;
  padding: 12px 14px;
  background: var(--tile-surface);
  cursor: pointer;
  text-align: left;
  font-weight: 600;
  color: var(--topic-tile-fg);
  transition:
    transform 0.28s cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 0.28s ease,
    border-color 0.22s ease,
    filter 0.22s ease;
  transform-style: preserve-3d;
}

.topic-tile[data-topic="zahlen"] {
  --tile-accent: #2a5bff;
  --tile-glow: rgba(42, 91, 255, 0.38);
}

.topic-tile[data-topic="raumform"] {
  --tile-accent: #11b3a3;
  --tile-glow: rgba(17, 179, 163, 0.38);
}

.topic-tile[data-topic="daten"] {
  --tile-accent: #7c5cff;
  --tile-glow: rgba(124, 92, 255, 0.38);
}

.topic-tile[data-topic="funktionalerzusammenhang"] {
  --tile-accent: #f59e0b;
  --tile-glow: rgba(245, 158, 11, 0.42);
}

.topic-tile[data-topic="messengoessen"] {
  --tile-accent: #e11d74;
  --tile-glow: rgba(225, 29, 116, 0.38);
}

/*
 * Dark-Mode-Themenfarben: heller als im Light-UI, damit Rand/Häkchen/Glow auf ~#1a222e gut sichtbar sind.
 * Grobe Kontrast-Logik: Kachel-Label (--topic-tile-fg) bleibt Haupt-Lesetext; Akzent dient UI-Hervorhebung.
 */
html[data-theme="dark"] .topic-tile[data-topic="zahlen"] {
  --tile-accent: #7a9fff;
  --tile-glow: rgba(122, 159, 255, 0.55);
}

html[data-theme="dark"] .topic-tile[data-topic="raumform"] {
  --tile-accent: #3ee0d4;
  --tile-glow: rgba(62, 224, 212, 0.5);
}

html[data-theme="dark"] .topic-tile[data-topic="daten"] {
  --tile-accent: #9d7fff;
  --tile-glow: rgba(157, 127, 255, 0.5);
}

html[data-theme="dark"] .topic-tile[data-topic="funktionalerzusammenhang"] {
  --tile-accent: #ffb84d;
  --tile-glow: rgba(255, 184, 77, 0.52);
}

html[data-theme="dark"] .topic-tile[data-topic="messengoessen"] {
  --tile-accent: #ff5c9e;
  --tile-glow: rgba(255, 92, 158, 0.52);
}

.topic-tile--visual {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0;
  padding: 0;
  overflow: hidden;
  text-align: center;
}

.topic-tile-check {
  position: absolute;
  top: 10px;
  right: 10px;
  z-index: 2;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: linear-gradient(145deg, var(--tile-accent), color-mix(in srgb, var(--tile-accent) 75%, #000));
  color: #fff;
  font-size: 1.05rem;
  font-weight: 800;
  line-height: 30px;
  text-align: center;
  box-shadow: 0 4px 14px var(--tile-glow);
  opacity: 0;
  transform: scale(0.65);
  transition:
    opacity 0.22s ease,
    transform 0.28s cubic-bezier(0.34, 1.56, 0.64, 1);
  pointer-events: none;
}

.topic-tile.selected .topic-tile-check {
  opacity: 1;
  transform: scale(1);
}

.topic-tile--visual .topic-tile-check {
  top: 8px;
  right: 8px;
}

.topic-tile-image {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  object-position: center;
  background: var(--tile-image-bg);
  border-bottom: 1px solid var(--border);
}

.topic-tile-label {
  display: flex;
  align-items: center;
  min-height: 44px;
  padding: 12px 16px;
  font-weight: 600;
  font-size: 0.92rem;
  line-height: 1.25;
  color: var(--topic-tile-fg);
}

.topic-tile:active {
  filter: brightness(0.94);
  transition: filter 0.08s ease;
}

.topic-tile:active .topic-tile-image {
  filter: brightness(0.96);
}

.topic-tile:hover {
  transform: translateY(-5px) scale(1.02);
  border-color: color-mix(in srgb, var(--tile-accent) 55%, var(--border));
  box-shadow:
    0 14px 28px rgba(16, 33, 58, 0.12),
    0 0 0 1px color-mix(in srgb, var(--tile-accent) 22%, transparent),
    0 0 28px var(--tile-glow);
}

.topic-tile.selected {
  border-color: var(--tile-accent);
  background: linear-gradient(
    180deg,
    color-mix(in srgb, var(--tile-accent) 12%, var(--tile-surface)) 0%,
    var(--tile-surface) 100%
  );
  box-shadow:
    0 8px 22px rgba(16, 33, 58, 0.14),
    0 0 0 2px color-mix(in srgb, var(--tile-accent) 45%, transparent),
    0 0 32px var(--tile-glow);
}

.topic-tile.selected .topic-tile-label {
  color: var(--topic-selected-fg);
}

html[data-theme="dark"] .topic-tile.selected .topic-tile-label {
  color: #ffffff;
  font-weight: 700;
}

.topic-tile:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--tile-accent) 55%, transparent);
  outline-offset: 2px;
}

html[data-theme="dark"] .topic-tile:hover {
  box-shadow:
    0 12px 28px rgba(0, 0, 0, 0.45),
    0 0 0 1px color-mix(in srgb, var(--tile-accent) 42%, var(--border)),
    0 0 26px var(--tile-glow);
}

html[data-theme="dark"] .topic-tile.selected {
  box-shadow:
    0 8px 24px rgba(0, 0, 0, 0.42),
    0 0 0 2px color-mix(in srgb, var(--tile-accent) 58%, transparent),
    0 0 30px var(--tile-glow);
}

.topic-pick-card .btn-generate {
  margin-top: 8px;
  width: 100%;
  max-width: 320px;
  padding: 12px 18px;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: 12px;
  background: var(--primary);
  color: #ffffff;
  cursor: pointer;
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease,
    background 0.15s ease;
}

.topic-pick-card .btn-generate:hover:not(:disabled) {
  background: var(--primary-dark);
}

.topic-pick-card .btn-generate:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.topic-pick-card .btn-generate.is-pulse-ready:not(:disabled) {
  animation: generate-pulse 1.6s ease-in-out infinite;
}

@keyframes generate-pulse {
  0%,
  100% {
    box-shadow:
      0 0 0 0 color-mix(in srgb, var(--primary) 45%, transparent),
      0 6px 20px rgba(42, 91, 255, 0.25);
  }
  50% {
    box-shadow:
      0 0 0 12px rgba(42, 91, 255, 0),
      0 10px 28px rgba(42, 91, 255, 0.35);
  }
}

@keyframes generate-pulse-dark {
  0%,
  100% {
    box-shadow:
      0 0 0 0 color-mix(in srgb, var(--primary) 55%, transparent),
      0 6px 20px rgba(109, 142, 240, 0.4);
  }
  50% {
    box-shadow:
      0 0 0 12px rgba(109, 142, 240, 0),
      0 10px 28px rgba(109, 142, 240, 0.5);
  }
}

html[data-theme="dark"] .topic-pick-card .btn-generate.is-pulse-ready:not(:disabled) {
  animation: generate-pulse-dark 1.6s ease-in-out infinite;
}

.selection-dock {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 20;
  padding: 10px 16px calc(10px + env(safe-area-inset-bottom, 0));
  background: linear-gradient(
    180deg,
    color-mix(in srgb, var(--panel) 72%, transparent) 0%,
    color-mix(in srgb, var(--panel) 94%, transparent) 40%,
    var(--panel) 100%
  );
  border-top: 1px solid var(--border);
  backdrop-filter: blur(12px);
  box-shadow: 0 -8px 32px rgba(16, 33, 58, 0.08);
}

html[data-theme="dark"] .selection-dock {
  box-shadow: 0 -10px 40px rgba(0, 0, 0, 0.35);
  border-top-color: #55667a;
  background: linear-gradient(
    180deg,
    color-mix(in srgb, var(--panel) 55%, #0a0e14) 0%,
    color-mix(in srgb, var(--panel) 92%, #0a0e14) 45%,
    var(--panel) 100%
  );
}

html[data-theme="dark"] .selection-dock__caption {
  color: #e2ebf7;
}

html[data-theme="dark"] .selection-dock__count {
  color: #f5f8fd;
}

html[data-theme="dark"] .selection-slot {
  border-color: #7a8fa8;
}

html[data-theme="dark"] .selection-slot__placeholder {
  color: #c5d8ee;
}

.selection-dock__inner {
  max-width: 1024px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

.selection-dock__caption {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.selection-dock__slots {
  display: flex;
  align-items: center;
  gap: 10px;
}

.selection-slot {
  --slot-accent: var(--primary);
  width: 48px;
  height: 48px;
  border-radius: 14px;
  border: 2px dashed color-mix(in srgb, var(--muted) 35%, var(--border));
  background: var(--slot-empty-bg);
  display: grid;
  place-items: center;
  overflow: hidden;
  transition:
    border-color 0.25s ease,
    box-shadow 0.25s ease,
    transform 0.25s ease;
}

.selection-slot--filled {
  border-style: solid;
  border-color: var(--slot-accent);
  box-shadow: 0 4px 14px color-mix(in srgb, var(--slot-accent) 28%, transparent);
  transform: scale(1.04);
}

.selection-slot img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.selection-slot__placeholder {
  font-size: 0.7rem;
  font-weight: 800;
  color: color-mix(in srgb, var(--muted) 55%, var(--border));
}

.selection-dock__count {
  font-variant-numeric: tabular-nums;
  font-weight: 800;
  font-size: 0.95rem;
  color: var(--text);
  min-width: 3ch;
}

.selection-dock--complete .selection-dock__count {
  color: var(--accent);
}

.confetti-bit {
  position: fixed;
  width: 7px;
  height: 7px;
  border-radius: 2px;
  pointer-events: none;
  z-index: 100;
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
  transition: none;
}

.confetti-bit--go {
  opacity: 0;
  transform: translate(calc(-50% + var(--dx, 0px)), calc(-50% + var(--dy, 0px))) scale(0.3) rotate(240deg);
  transition:
    transform 0.55s cubic-bezier(0.22, 1, 0.36, 1),
    opacity 0.55s ease;
}

.status,
.hint {
  margin-bottom: 12px;
  color: var(--muted);
}

.selection-status-line {
  font-size: 0.95rem;
  font-weight: 600;
}

html[data-theme="dark"] .selection-status-line {
  color: #dce7f7;
}

.toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.badge {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.2px;
}

.badge-info {
  background: #eaf0ff;
  color: #1f469c;
}

.badge-ok {
  background: #e8fbf8;
  color: #0e736a;
}

.badge-muted {
  background: #eef2f8;
  color: #4d607d;
}

.badge-lehrer {
  background: #fff4e5;
  color: #8a4b00;
}

html[data-theme="dark"] .badge-info {
  background: color-mix(in srgb, var(--primary) 34%, var(--panel));
  color: #dce6ff;
}

html[data-theme="dark"] .badge-ok {
  background: color-mix(in srgb, var(--accent) 30%, var(--panel));
  color: #c8faf4;
}

html[data-theme="dark"] .badge-muted {
  background: #2c3a4d;
  color: #d8e4f4;
}

html[data-theme="dark"] .badge-lehrer {
  background: color-mix(in srgb, #f59e0b 40%, var(--panel));
  color: #ffe8c4;
}

button,
.download-link,
.btn {
  display: inline-block;
  border: none;
  border-radius: 10px;
  background: var(--primary);
  color: #fff;
  padding: 10px 15px;
  text-decoration: none;
  cursor: pointer;
  font-weight: 600;
}

.btn-secondary {
  background: #e9eef9;
  color: #213656;
}

.btn-danger {
  background: var(--danger);
}

button:hover,
.download-link:hover,
.btn:hover {
  background: var(--primary-dark);
}

.btn-secondary:hover {
  background: #d9e2f4;
}

.btn-danger:hover {
  background: #a92038;
}

html[data-theme="dark"] .btn-danger {
  background: #c73d54;
  color: #ffffff;
}

html[data-theme="dark"] .btn-danger:hover {
  background: #e0566e;
  color: #ffffff;
}

.links {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.stepper {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 10px 0 16px;
}

.step {
  background: var(--step-bg);
  color: var(--step-fg);
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 0.9rem;
}

.step.active {
  background: var(--step-active-bg);
  color: var(--step-active-fg);
  font-weight: 600;
}

.hidden {
  display: none !important;
}

.download-dialog {
  width: min(680px, 92vw);
  max-width: 92vw;
  max-height: min(90vh, 100dvh);
  overflow-x: hidden;
  overflow-y: auto;
  margin: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  background: var(--panel);
  color: var(--text);
  box-sizing: border-box;
  -webkit-overflow-scrolling: touch;
}

.download-dialog::backdrop {
  background: rgba(7, 13, 22, 0.42);
}

html[data-theme="dark"] .download-dialog::backdrop {
  background: rgba(0, 0, 0, 0.62);
}

html[data-theme="dark"] .btn-secondary {
  background: #2a3548;
  color: #f4f7fc;
  border: 1px solid var(--border);
}

html[data-theme="dark"] .btn-secondary:hover {
  background: #354358;
  color: #ffffff;
}

.dialog-actions {
  display: flex;
  gap: 10px;
  margin-top: 14px;
  flex-wrap: wrap;
  align-items: center;
}

.dialog-actions--pdf {
  flex-direction: column;
  align-items: stretch;
}

@media (min-width: 480px) {
  .dialog-actions--pdf {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
  }
}

.result-downloads {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-top: 12px;
}

ul {
  padding-left: 20px;
}

.file-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.file-item {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
  background: var(--interactive-surface);
  color: var(--text);
  overflow-wrap: anywhere;
}

.file-item--lehrer-pair {
  border-left: 3px solid var(--lehrer-pair-border);
  background: var(--lehrer-pair-bg);
}

.file-title {
  display: inline-block;
  margin-bottom: 6px;
  font-weight: 700;
  color: var(--file-link);
  text-decoration: none;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.meta-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.empty-state {
  border: 1px dashed var(--border);
  background: var(--subtle-fill);
  border-radius: 12px;
  padding: 14px;
  color: var(--muted);
}

.upload-preview-wrap {
  margin-top: 10px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.upload-preview {
  width: 132px;
  height: 132px;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  background: var(--subtle-fill);
  display: grid;
  place-items: center;
}

.upload-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.thumb-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
  gap: 12px;
}

.thumb-card {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px;
  background: var(--interactive-surface);
  color: var(--text);
}

.thumb-image {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--thumb-placeholder-bg);
}

.thumb-actions {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}

.thumb-actions--card {
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin-top: 8px;
}

.thumb-actions--batch-toolbar {
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}

.thumb-meta {
  margin-top: 8px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  line-height: 1.25;
  word-break: break-word;
}

.thumb-select {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin: 0;
  font-size: 0.72rem;
  font-weight: 600;
  cursor: pointer;
  color: var(--muted);
  flex: 0 0 auto;
}

.thumb-select input {
  width: auto;
  margin: 0;
}

.thumb-move-row {
  flex: 1 1 100%;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
  min-width: 0;
}

.thumb-move-select {
  flex: 1 1 min(100%, 140px);
  min-width: 0;
  margin-top: 0 !important;
  padding: 5px 8px !important;
  font-size: 0.78rem !important;
}

button.btn-compact {
  padding: 6px 10px;
  font-size: 0.78rem;
  border-radius: 8px;
}

button.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  padding: 0;
  border-radius: 8px;
  flex-shrink: 0;
}

button.btn-icon svg {
  display: block;
}

button.btn-icon.btn-secondary {
  background: #e9eef9;
  color: #213656;
}

button.btn-icon.btn-secondary:hover {
  background: #d9e2f4;
}

button.btn-icon.btn-danger {
  background: #fff5f6;
  color: var(--danger);
}

button.btn-icon.btn-danger:hover {
  background: #fde8ec;
  color: #a92038;
}

html[data-theme="dark"] button.btn-icon.btn-secondary {
  background: #2f3d52;
  color: #e8f0ff;
  border: 1px solid var(--border);
}

html[data-theme="dark"] button.btn-icon.btn-secondary:hover {
  background: #3a4b63;
  color: #ffffff;
}

html[data-theme="dark"] button.btn-icon.btn-danger {
  background: color-mix(in srgb, #c73d54 35%, var(--panel));
  color: #ffc9d2;
  border: 1px solid color-mix(in srgb, #c73d54 55%, transparent);
}

html[data-theme="dark"] button.btn-icon.btn-danger:hover {
  background: color-mix(in srgb, #c73d54 50%, var(--panel));
  color: #ffeef1;
}

button.btn-icon:hover {
  color: inherit;
}

@media (max-width: 720px) {
  .grid-2 {
    grid-template-columns: 1fr;
  }

  .theme-switch__btn {
    min-width: 44px;
    min-height: 44px;
  }

  .headline {
    font-size: clamp(1.35rem, 5vw + 0.5rem, 1.8rem);
  }
}