/* ─────────────────────────────────────────────────────────────
   Nebula – wiederkehrende Bausteine.

   Bewusst in @layer components: Tailwind sortiert die Layer als
   theme → base → components → utilities. Ohne diese Zuordnung wuerden
   die Kurzschreibweisen hier (padding, border-radius …) die Utilities
   ueberschreiben, weil sie spaeter im Stylesheet stehen – aus
   "field pl-9" wuerde dann wieder das linke Standardpadding und das
   Suchsymbol laege auf dem Platzhaltertext.
   ───────────────────────────────────────────────────────────── */

@layer components {
  /* ── Glasflaechen ─────────────────────────────────────────── */

  .glass {
    position: relative;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(18px) saturate(140%);
    -webkit-backdrop-filter: blur(18px) saturate(140%);
    border-radius: var(--radius-card);
    box-shadow:
      0 1px 0 0 var(--glass-highlight) inset,
      0 24px 60px -30px rgba(0, 0, 0, 0.9);
  }

  .glass-soft {
    background: rgba(255, 255, 255, 0.025);
    border: 1px solid rgba(255, 255, 255, 0.07);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 0.9rem;
  }

  /* Karte mit Akzent-Glow. --accent-from/--accent-to setzt die Komponente. */
  .card-glow {
    transition:
      transform 0.35s cubic-bezier(0.22, 1, 0.36, 1),
      box-shadow 0.35s ease,
      border-color 0.35s ease;
  }

  .card-glow::before {
    content: "";
    position: absolute;
    inset: -1px;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(135deg, var(--accent-from, #8b5cf6), var(--accent-to, #d946ef));
    -webkit-mask:
      linear-gradient(#000 0 0) content-box,
      linear-gradient(#000 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.35s ease;
    pointer-events: none;
  }

  .card-glow:hover {
    transform: translateY(-4px);
    box-shadow:
      0 1px 0 0 var(--glass-highlight) inset,
      0 30px 70px -30px rgba(0, 0, 0, 0.95),
      0 0 46px -12px var(--accent-from, #8b5cf6);
  }

  .card-glow:hover::before {
    opacity: 0.85;
  }

  /**
   * Flaeche fuer alles, was ueber dem Inhalt schwebt: Menues, Dialoge.
   *
   * Bewusst nahezu deckend statt Glas. Ein Overlay muss lesbar sein, egal
   * was darunter liegt - bei 3,5 % Deckkraft schien der Inhalt dahinter
   * durch. backdrop-filter hilft hier nicht: liegt das Element in einem
   * Vorfahren, der selbst backdrop-filter setzt (unsere Karten), bleibt die
   * Weichzeichnung wirkungslos.
   */
  .popover {
    /* Vollstaendig deckend: bei 97 % schimmerte darunterliegender Text
       (die Schaltflaechen "Bearbeiten" und "Loeschen") noch durch. */
    background: #090b18;
    border: 1px solid rgba(255, 255, 255, 0.11);
    border-radius: 0.9rem;
    box-shadow:
      0 1px 0 0 rgba(255, 255, 255, 0.07) inset,
      0 28px 70px -24px rgba(0, 0, 0, 0.95);
  }

  /**
   * Markdown-Inhalte. Tailwind setzt in seinem Preflight alle Abstaende und
   * Schriftgroessen zurueck, also muessen Ueberschriften, Listen und
   * Codebloecke hier wieder Form bekommen.
   */
  .md {
    font-size: 0.875rem;
    line-height: 1.65;
    color: #cbd5e1;
    overflow-wrap: break-word;
  }

  .md > *:first-child { margin-top: 0; }
  .md > *:last-child { margin-bottom: 0; }

  .md h1, .md h2, .md h3, .md h4 {
    color: #f1f5f9;
    font-weight: 600;
    line-height: 1.3;
    margin: 1.4em 0 0.5em;
  }
  .md h1 { font-size: 1.3rem; }
  .md h2 { font-size: 1.15rem; }
  .md h3 { font-size: 1rem; }
  .md h4 { font-size: 0.9rem; }

  .md p { margin: 0.75em 0; }

  .md a {
    color: #c4b5fd;
    text-decoration: underline;
    text-underline-offset: 2px;
  }
  .md a:hover { color: #ddd6fe; }

  .md strong { color: #f1f5f9; font-weight: 600; }

  .md ul, .md ol { margin: 0.75em 0; padding-left: 1.35em; }
  .md ul { list-style: disc; }
  .md ol { list-style: decimal; }
  .md li { margin: 0.3em 0; }
  .md li::marker { color: #64748b; }

  /* Aufgabenlisten aus "- [ ] …" */
  .md li:has(> input[type="checkbox"]) {
    list-style: none;
    margin-left: -1.35em;
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
  }
  .md input[type="checkbox"] {
    margin-top: 0.35em;
    accent-color: #8b5cf6;
    width: 0.9rem;
    height: 0.9rem;
    flex-shrink: 0;
  }

  .md code {
    background: rgba(255, 255, 255, 0.07);
    border: 1px solid rgba(255, 255, 255, 0.07);
    border-radius: 0.35rem;
    padding: 0.1em 0.35em;
    font-family: var(--font-mono);
    font-size: 0.85em;
    color: #e9d5ff;
  }

  .md pre {
    background: rgba(4, 6, 16, 0.75);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 0.75rem;
    padding: 0.85rem 1rem;
    margin: 0.9em 0;
    overflow-x: auto;
  }
  .md pre code {
    background: none;
    border: none;
    padding: 0;
    color: #cbd5e1;
    font-size: 0.8rem;
    line-height: 1.6;
  }

  .md blockquote {
    border-left: 2px solid rgba(167, 139, 250, 0.5);
    padding-left: 0.9rem;
    margin: 0.9em 0;
    color: #94a3b8;
    font-style: italic;
  }

  .md hr {
    border: 0;
    border-top: 1px solid rgba(255, 255, 255, 0.09);
    margin: 1.4em 0;
  }

  .md table {
    width: 100%;
    margin: 0.9em 0;
    border-collapse: collapse;
    font-size: 0.8rem;
    display: block;
    overflow-x: auto;
  }
  .md th, .md td {
    border: 1px solid rgba(255, 255, 255, 0.09);
    padding: 0.4rem 0.6rem;
    text-align: left;
  }
  .md th {
    background: rgba(255, 255, 255, 0.04);
    color: #e2e8f0;
    font-weight: 600;
  }

  .md img {
    max-width: 100%;
    height: auto;
    border-radius: 0.5rem;
  }

  /* ── Text & Akzente ───────────────────────────────────────── */

  .text-gradient {
    background: linear-gradient(120deg, #c4b5fd 0%, #67e8f9 45%, #f0abfc 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }

  .accent-bar {
    background: linear-gradient(90deg, var(--accent-from, #8b5cf6), var(--accent-to, #d946ef));
  }

  .accent-dot {
    box-shadow: 0 0 12px 1px currentColor;
  }

  /* ── Buttons ──────────────────────────────────────────────── */

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    border-radius: 0.75rem;
    font-size: 0.875rem;
    font-weight: 500;
    padding: 0.55rem 1rem;
    transition:
      background-color 0.2s ease,
      border-color 0.2s ease,
      color 0.2s ease,
      box-shadow 0.2s ease,
      filter 0.2s ease;
    cursor: pointer;
    white-space: nowrap;
    border: 1px solid transparent;
  }

  .btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
  }

  .btn:focus-visible {
    outline: 2px solid rgba(167, 139, 250, 0.8);
    outline-offset: 2px;
  }

  .btn-primary {
    background: linear-gradient(120deg, #7c3aed, #c026d3);
    color: #fff;
    box-shadow: 0 10px 30px -12px rgba(168, 85, 247, 0.9);
  }

  .btn-primary:hover:not(:disabled) {
    filter: brightness(1.12);
    box-shadow: 0 14px 36px -12px rgba(168, 85, 247, 1);
  }

  .btn-ghost {
    background: rgba(255, 255, 255, 0.04);
    border-color: rgba(255, 255, 255, 0.1);
    color: #cbd5f5;
  }

  .btn-ghost:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.09);
    color: #fff;
  }

  .btn-danger {
    background: rgba(244, 63, 94, 0.12);
    border-color: rgba(244, 63, 94, 0.35);
    color: #fda4af;
  }

  .btn-danger:hover:not(:disabled) {
    background: rgba(244, 63, 94, 0.22);
    color: #fff;
  }

  /* ── Formularfelder ───────────────────────────────────────── */

  .field {
    width: 100%;
    border-radius: 0.75rem;
    background: rgba(8, 10, 24, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.09);
    padding: 0.6rem 0.85rem;
    font-size: 0.875rem;
    color: #e6e8f5;
    transition:
      border-color 0.2s ease,
      box-shadow 0.2s ease;
  }

  .field::placeholder {
    color: rgba(148, 163, 184, 0.6);
  }

  .field:focus {
    outline: none;
    border-color: rgba(167, 139, 250, 0.6);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.18);
  }

  .field-label {
    display: block;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: rgba(148, 163, 184, 0.85);
    margin-bottom: 0.4rem;
  }

  select.field option {
    background: #0a0c1a;
    color: #e6e8f5;
  }

  /**
   * Schieberegler. Der native Regler zeichnet die Spur rechts vom Griff in
   * einem hellen Standardton - im dunklen Layout ein grelles Band. Deshalb
   * vollstaendig selbst gezeichnet: der gefuellte Anteil kommt aus der
   * Variablen --fill, die die Komponente aus dem Wert setzt.
   */
  .range {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 6px;
    border-radius: 9999px;
    cursor: pointer;
    background: linear-gradient(
      90deg,
      #8b5cf6 0%,
      #d946ef var(--fill, 0%),
      rgba(255, 255, 255, 0.1) var(--fill, 0%),
      rgba(255, 255, 255, 0.1) 100%
    );
  }

  .range:focus-visible {
    outline: 2px solid rgba(167, 139, 250, 0.8);
    outline-offset: 4px;
  }

  .range::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    height: 16px;
    width: 16px;
    border-radius: 9999px;
    background: #f5f3ff;
    border: 2px solid #7c3aed;
    box-shadow: 0 0 14px -2px rgba(168, 85, 247, 0.9);
    cursor: grab;
  }

  .range::-webkit-slider-thumb:active {
    cursor: grabbing;
  }

  .range::-moz-range-thumb {
    height: 14px;
    width: 14px;
    border-radius: 9999px;
    background: #f5f3ff;
    border: 2px solid #7c3aed;
    box-shadow: 0 0 14px -2px rgba(168, 85, 247, 0.9);
    cursor: grab;
  }

  .range::-moz-range-track {
    background: transparent;
  }
}