/* Na'vi Vokabeltrainer - Avatar/Pandora-Theme
   Farbwelt: tiefes Bioluminesz-Blau/Violett + leuchtendes Cyan/Grün als Akzent,
   angelehnt an Pandora-Nachtszenen. */

:root {
  --bg-deep: #050914;
  --bg-panel: #0d1526;
  --bg-panel-2: #121e35;
  --border: #1f3350;
  --text: #dbe7f2;
  --text-dim: #8ea3bd;
  --accent: #35e0c9;
  --accent-2: #7c5cff;
  --accent-glow: rgba(53, 224, 201, 0.35);
  --danger: #ff6b6b;
  --ok: #4ade80;
  --radius: 14px;
  --shadow: 0 10px 40px rgba(0, 0, 0, 0.45);
}

* { box-sizing: border-box; }

/* Erzwingt, dass das hidden-Attribut IMMER greift, auch wenn ein Element
   (wie .topnav oder .nav-toggle) eine eigene unbedingte display-Regel hat -
   ohne dieses Reset wuerde die Autor-Regel laut CSS-Kaskade die UA-Regel
   [hidden]{display:none} ueberstimmen (Origin-Prioritaet schlaegt
   Spezifitaet), und das Element bliebe trotz hidden-Attribut sichtbar. */
[hidden] { display: none !important; }

html, body {
  margin: 0;
  min-height: 100%;
  background: radial-gradient(circle at 20% -10%, #142445 0%, var(--bg-deep) 55%);
  color: var(--text);
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
}

a { color: inherit; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(5, 9, 20, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.topbar-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  gap: 24px;
}

.brand {
  font-weight: 700;
  font-size: 1.15rem;
  text-decoration: none;
  letter-spacing: 0.02em;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.topnav {
  display: flex;
  align-items: center;
  gap: 18px;
  flex: 1;
}

.topnav a {
  text-decoration: none;
  color: var(--text-dim);
  font-size: 0.95rem;
  transition: color 0.15s;
}
.topnav a:hover { color: var(--accent); }

/* Nav-Dropdowns (Vokabeltrainer/Grammatik): reines CSS-:hover/:focus-within,
   kein JS noetig. Der Oberpunkt ist selbst ein normaler, klickbarer Link. */
.nav-dropdown {
  position: relative;
}
.nav-dropdown-menu {
  display: none;
  position: absolute;
  /* top:100% mit padding statt margin fuer den Abstand zum Oberpunkt - eine
     margin-Luecke liegt AUSSERHALB der Box und ist damit nicht Teil der
     :hover-Flaeche, wodurch die Maus beim Reinziehen ins Dropdown kurz aus
     .nav-dropdown "rausrutscht" und das Menue sofort wieder schliesst.
     Mit padding-top bleibt die komplette Flaeche inklusive des Abstands
     durchgehend hoverbar. */
  top: 100%;
  left: 0;
  padding: 14px 6px 6px 6px;
  background: var(--bg-panel);
  background-clip: padding-box;
  border: 1px solid var(--border);
  border-radius: 10px;
  min-width: 170px;
  flex-direction: column;
  gap: 2px;
  z-index: 60;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
}
.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown:focus-within .nav-dropdown-menu {
  display: flex;
}
.nav-dropdown-menu a {
  padding: 8px 12px;
  border-radius: 6px;
  white-space: nowrap;
}
.nav-dropdown-menu a:hover {
  background: var(--bg-panel-2);
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 6px 12px;
  font-size: 1.1rem;
  line-height: 1;
  cursor: pointer;
}
.nav-toggle:hover { border-color: var(--accent); color: var(--accent); }

.lang-switch {
  margin-left: auto;
}
.lang-switch select {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text);
  padding: 6px 14px;
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 600;
}
.lang-switch select:focus {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

button.ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-dim);
  padding: 7px 14px;
  border-radius: 999px;
  cursor: pointer;
  font-size: 0.85rem;
}
button.ghost:hover { border-color: var(--accent); color: var(--accent); }

main#app {
  max-width: 1100px;
  margin: 0 auto;
  padding: 28px 20px 60px;
  min-height: 70vh;
}

/* Einheitlicher Abstand zwischen allen direkten Seitenbloecken (Cards,
   Grid-Reihen, etc.) - vorher stand der Abstand nur auf ".card + .card",
   wodurch z.B. eine ".grid"-Reihe (Profil: Vokabeln/Grammatik) direkt an
   die Card davor/danach anstiess, ohne jeden Zwischenraum. */
main#app > * + * { margin-top: 18px; }

.footer {
  text-align: center;
  color: var(--text-dim);
  font-size: 0.8rem;
  padding: 24px;
  border-top: 1px solid var(--border);
}
.footer-nav {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}
.footer-nav a {
  color: var(--text-dim);
  text-decoration: none;
}
.footer-nav a:hover { color: var(--accent); }

.legal-notice {
  background: var(--bg-panel-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  margin-bottom: 16px;
  color: var(--text-dim);
  font-size: 0.85rem;
}
.legal-text h3 { margin-top: 20px; margin-bottom: 6px; }
.legal-text h3:first-child { margin-top: 0; }
.legal-text p { color: var(--text); line-height: 1.6; }

/* Cookie-Banner: echtes Opt-in, blockiert bis zur Entscheidung nichts
   inhaltlich, haengt nur unten fest sichtbar. */
.cookie-banner {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 100;
  background: var(--bg-panel);
  border-top: 1px solid var(--border);
  box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.35);
}
.cookie-banner-inner {
  max-width: 900px;
  margin: 0 auto;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}
.cookie-banner-inner p {
  margin: 0;
  color: var(--text);
  font-size: 0.9rem;
  flex: 1;
  min-width: 240px;
}
.cookie-banner-inner a { color: var(--accent); }
.cookie-banner-actions {
  display: flex;
  gap: 10px;
  flex-shrink: 0;
}

/* Welcome-Tour: .tour-spot nutzt einen riesigen box-shadow-Spread als
   abgedunkelten Hintergrund ausserhalb des Zielrechtecks - kein separates
   Backdrop-Element noetig, das Ziel bleibt dadurch echt klickbar/sichtbar. */
.tour-overlay {
  position: fixed;
  inset: 0;
  z-index: 300;
  pointer-events: none;
}
.tour-spot {
  position: fixed;
  border-radius: 10px;
  box-shadow: 0 0 0 9999px rgba(4, 10, 20, 0.78);
  border: 2px solid var(--accent);
  transition: all 0.2s ease;
}
.tour-tooltip {
  position: fixed;
  z-index: 301;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
  max-width: 320px;
  pointer-events: auto;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}
.tour-tooltip-centered {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  max-width: 380px;
  box-shadow: 0 0 0 9999px rgba(4, 10, 20, 0.78);
}
.tour-tooltip h3 { margin-top: 8px; margin-bottom: 8px; }
.tour-tooltip p { color: var(--text); font-size: 0.9rem; line-height: 1.5; }
.tour-step-indicator {
  color: var(--text-dim);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.tour-tooltip-actions {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  margin-top: 14px;
}

/* Hero - reiner Farbverlauf statt Fotos/Illustrationen (keine Lizenzfragen,
   passt sich automatisch an Theme-Farben an, kein Bild-Download noetig). */
.hero {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  min-height: 320px;
  display: flex;
  align-items: flex-end;
  box-shadow: var(--shadow);
  margin-bottom: 28px;
  background:
    radial-gradient(circle at 15% 20%, rgba(53, 224, 201, 0.28), transparent 55%),
    radial-gradient(circle at 85% 85%, rgba(124, 92, 255, 0.32), transparent 55%),
    linear-gradient(135deg, #0d1526 0%, #142445 55%, #0d1526 100%);
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(5,9,20,0.15) 0%, rgba(5,9,20,0.92) 92%);
}
.hero-content {
  position: relative;
  z-index: 1;
  padding: 32px;
}
.hero h1 {
  font-size: 2rem;
  margin: 0 0 8px;
}
.hero p {
  color: var(--text-dim);
  margin: 0;
  max-width: 480px;
}

/* Cards */
.card {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
}

.grid {
  display: grid;
  gap: 18px;
}
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }

/* Forms */
label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-bottom: 6px;
}
input, select, textarea {
  width: 100%;
  background: var(--bg-panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 0.95rem;
  margin-bottom: 14px;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  color: #04150f;
  border: none;
  padding: 11px 22px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  transition: transform 0.1s, filter 0.15s;
}
.btn:hover { filter: brightness(1.08); }
.btn:active { transform: scale(0.98); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-danger {
  background: transparent;
  border: 1px solid var(--danger);
  color: var(--danger);
}
.btn-secondary {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}

.login-wrap {
  max-width: 420px;
  margin: 0 auto;
}
.tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 18px;
  background: var(--bg-panel-2);
  border-radius: 999px;
  padding: 3px;
}
.tabs button {
  flex: 1;
  border: none;
  background: transparent;
  color: var(--text-dim);
  padding: 9px;
  border-radius: 999px;
  cursor: pointer;
  font-weight: 600;
}
.tabs button.active {
  background: var(--accent);
  color: #04150f;
}

.error-msg {
  color: var(--danger);
  font-size: 0.85rem;
  margin: -6px 0 12px;
}
.ok-msg {
  color: var(--ok);
  font-size: 0.85rem;
  margin: -6px 0 12px;
}
.hint-text {
  color: var(--text-dim);
  font-size: 0.85rem;
  margin: 10px 0 0;
}
.radio-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin: 6px 0 14px;
}
.radio-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: normal;
  cursor: pointer;
}
.radio-label input[type="radio"] {
  width: auto;
}

/* Vokabel-Editor */
.vocab-form-eyebrow {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 22px 0 10px;
}
.vocab-form-eyebrow:first-child { margin-top: 0; }

.vocab-form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0 16px;
}

/* Inschrift-Panel: das Na'vi-Feld ist das Herzstueck des Formulars (der
   ganze Zweck der App), deshalb visuell abgesetzt von den restlichen
   Metadaten-Feldern - wie eine leuchtende Karteikarte im Kleinformat. */
.navi-panel {
  position: relative;
  background: radial-gradient(circle at 15% 0%, rgba(53, 224, 201, 0.08), transparent 60%), var(--bg-panel-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 18px 14px;
  margin-bottom: 8px;
}
.navi-toolbar {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 1;
}
.navi-toolbar-btn {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg-panel);
  color: var(--text-dim);
  font-weight: 700;
  font-size: 0.85rem;
  text-decoration: underline;
  text-underline-offset: 2px;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
}
.navi-toolbar-btn:hover { color: var(--accent); border-color: var(--accent); }
.navi-toolbar-btn.active {
  color: #04150f;
  background: var(--accent);
  border-color: var(--accent);
}

.navi-editable {
  font-family: ui-monospace, "Cascadia Code", "SF Mono", Consolas, monospace;
  font-size: 1.6rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--text);
  padding: 6px 42px 6px 2px;
  min-height: 1.4em;
  outline: none;
  white-space: pre-wrap;
  word-break: break-word;
}
.navi-editable u {
  color: var(--accent);
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}
.navi-editable:empty::before {
  content: attr(data-placeholder);
  color: var(--text-dim);
  font-weight: 400;
}
.navi-editable:focus {
  box-shadow: none;
}
.navi-panel:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.navi-panel-hint {
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-top: 2px;
}

/* Table */
table { width: 100%; border-collapse: collapse; }
th, td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}
th { color: var(--text-dim); font-weight: 600; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.04em; }

.tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.75rem;
  border: 1px solid var(--border);
  color: var(--text-dim);
}
.tag.admin { border-color: var(--accent); color: var(--accent); }

.row-actions { display: flex; gap: 8px; }
.row-actions button {
  border: none;
  background: transparent;
  color: var(--text-dim);
  cursor: pointer;
  font-size: 0.85rem;
}
.row-actions button:hover { color: var(--accent); }
.row-actions button.danger:hover { color: var(--danger); }

/* Flashcard */
.flashcard {
  max-width: 480px;
  margin: 0 auto;
  text-align: center;
}
.flashcard-word {
  font-size: 2.4rem;
  font-weight: 700;
  padding: 60px 20px;
  background: var(--bg-panel-2);
  border-radius: var(--radius);
  margin-bottom: 20px;
  border: 1px solid var(--border);
  cursor: pointer;
  user-select: none;
}
.flashcard-hint {
  color: var(--text-dim);
  font-size: 0.85rem;
  margin-bottom: 20px;
}
.flashcard-meta {
  color: var(--text-dim);
  font-size: 0.7rem;
  font-style: italic;
  margin-top: -14px;
  margin-bottom: 12px;
}
.flashcard-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
}

/* Grammatik-Baukasten */
.infix-word {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  margin: 24px 0;
}
.infix-gap {
  display: inline-block;
  min-width: 2.2em;
  border-bottom: 3px dashed var(--accent);
  margin: 0 2px;
  height: 1.2em;
  vertical-align: bottom;
}
.infix-tile-row {
  display: flex;
  justify-content: center;
  margin-bottom: 20px;
}
.infix-tile {
  display: inline-block;
  padding: 10px 20px;
  background: var(--accent);
  color: #04150f;
  font-weight: 700;
  border-radius: 8px;
  cursor: grab;
  touch-action: none;
  user-select: none;
}
.infix-tile.dragging {
  cursor: grabbing;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}
.suffix-sentence {
  font-size: 1.3rem;
  line-height: 2.4;
  margin-bottom: 20px;
  text-align: center;
}
.suffix-input {
  width: 70px;
  display: inline-block;
  text-align: center;
  margin: 0 4px;
}
.suffix-sentence select {
  display: inline-block;
  width: auto;
  margin: 0 4px;
}

.progress-bar-wrap {
  background: var(--bg-panel-2);
  border-radius: 999px;
  height: 10px;
  overflow: hidden;
  margin: 8px 0 18px;
}
.progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
}

.filters { display: flex; gap: 12px; align-items: flex-end; margin-bottom: 18px; flex-wrap: wrap; }
.filters > div { flex: 1; min-width: 160px; }

.section-title {
  font-size: 1.3rem;
  margin: 0 0 16px;
}

.empty-state {
  text-align: center;
  color: var(--text-dim);
  padding: 40px 20px;
}

/* ===== Responsive: Tablet ===== */
@media (max-width: 880px) {
  .topbar-inner { flex-wrap: wrap; gap: 12px; }
  .nav-toggle { display: inline-flex; align-items: center; }

  /* Nav klappt unterhalb der Kopfzeile als vertikale Liste auf statt als
     horizontale Reihe mit Hover-Dropdowns - Touch-Geraete kennen kein
     :hover, deshalb steuert #navToggle (app.js) die Sichtbarkeit per
     Klasse statt die Maus. */
  .topnav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    background: var(--bg-panel);
    border-bottom: 1px solid var(--border);
    padding: 12px 20px 18px;
    box-shadow: var(--shadow);
  }
  .topnav:not([hidden]).nav-open { display: flex; }
  .topnav a, .topnav button.ghost {
    padding: 10px 4px;
    text-align: left;
    width: 100%;
  }
  .nav-dropdown { position: static; }
  .nav-dropdown-menu {
    display: flex !important;
    position: static;
    border: none;
    box-shadow: none;
    background: transparent;
    padding: 2px 0 2px 16px;
    min-width: 0;
  }
  .nav-dropdown-menu a { white-space: normal; }

  main#app { padding: 22px 16px 48px; }
  .card { padding: 18px; }
  .hero { min-height: 240px; }
  .hero-content { padding: 22px; }
  .hero h1 { font-size: 1.6rem; }

  table { display: block; max-width: 100%; overflow-x: auto; }
}

/* ===== Responsive: Smartphone ===== */
@media (max-width: 560px) {
  .topbar-inner { padding: 12px 14px; gap: 10px; }
  .brand { font-size: 1rem; }
  main#app { padding: 18px 12px 40px; }
  .card { padding: 14px; border-radius: 10px; }

  .hero { min-height: 200px; margin-bottom: 20px; }
  .hero-content { padding: 16px; }
  .hero h1 { font-size: 1.35rem; }
  .hero p { font-size: 0.9rem; }

  .flashcard-word { font-size: 1.7rem; padding: 36px 14px; }
  .infix-word { font-size: 1.4rem; margin: 16px 0; }
  .suffix-sentence { font-size: 1.05rem; line-height: 2; }
  .navi-editable { font-size: 1.25rem; }

  .tour-tooltip, .tour-tooltip-centered {
    max-width: calc(100vw - 32px);
    padding: 14px 16px;
  }

  .btn { padding: 10px 18px; font-size: 0.9rem; }
  .cookie-banner-inner { padding: 14px 16px; }
}