/* „Was ist neu?“: Kopfzeilen-Button und Release-Notes-Dialog im Stil eines App-Updates. */
    .whats-new-button {
      position: relative;
      display: inline-flex;
      align-items: center;
      gap: 7px;
      min-height: 38px;
      border: 1px solid var(--border);
      border-radius: 999px;
      background: var(--surface);
      color: var(--text);
      cursor: pointer;
      font-family: var(--font-body);
      font-size: var(--text-sm);
      font-weight: 600;
      padding: 0.45rem 0.9rem 0.45rem 0.7rem;
      white-space: nowrap;
    }
    .whats-new-button svg {
      width: 18px;
      height: 18px;
      fill: none;
      stroke: var(--accent);
      stroke-linejoin: round;
      stroke-width: 1.6;
    }
    .whats-new-button:hover,
    .whats-new-button:focus-visible { border-color: var(--accent); color: var(--accent); }
    .whats-new-button:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
    .whats-new-button-dot {
      position: absolute;
      top: 0px;
      right: 0px;
      display: none;
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: var(--accent);
      box-shadow: 0 0 0 2px var(--bg);
    }
    .whats-new-button.is-unseen { border-color: color-mix(in srgb, var(--accent) 55%, var(--border)); }
    .whats-new-button.is-unseen .whats-new-button-dot { display: block; }

    .whats-new-dialog { width: min(calc(100vw - 16px), 560px); }
    .whats-new-card { padding: 1.75rem 1.5rem 1.5rem; }
    .whats-new-hero {
      display: grid;
      grid-template-columns: auto minmax(0, 1fr);
      align-items: center;
      gap: 1.1rem;
      padding-right: 2.5rem;
    }
    .whats-new-app-icon {
      display: block;
      width: 76px;
      height: 76px;
      border-radius: 18px;
      box-shadow: 0 0 0 1px var(--border), 0 12px 32px rgba(0,0,0,0.45);
    }
    .whats-new-dialog h2 { font-size: 2.4rem; line-height: 0.95; margin: 0.2rem 0 0.35rem; }
    .whats-new-dialog h2 em { color: var(--accent); font-style: normal; }
    .whats-new-version {
      margin: 0;
      color: var(--muted);
      font-family: var(--font-mono);
      font-size: 0.78rem;
    }
    .whats-new-features {
      display: grid;
      gap: 1.15rem;
      list-style: none;
      margin: 1.35rem 0 0;
      padding: 0;
    }
    .whats-new-feature {
      position: relative;
      min-height: 40px;
      padding-left: calc(40px + 0.9rem);
    }
    .whats-new-feature-link {
      display: inline-block;
      max-width: 100%;
      margin: 0;
      border: 0;
      border-radius: 12px;
      background: transparent;
      color: inherit;
      cursor: pointer;
      font: inherit;
      padding: 0;
      text-align: left;
    }
    .whats-new-feature-link:hover h3,
    .whats-new-feature-link:focus-visible h3 { color: var(--accent2); }
    .whats-new-feature-link:hover .whats-new-feature-icon,
    .whats-new-feature-link:focus-visible .whats-new-feature-icon {
      border-color: color-mix(in srgb, var(--accent2) 65%, var(--border));
      background: color-mix(in srgb, var(--accent2) 15%, var(--surface));
    }
    .whats-new-feature-link:focus-visible { outline: 2px solid var(--accent2); outline-offset: 4px; }
    .whats-new-feature-icon {
      position: absolute;
      top: 0;
      left: 0;
      display: grid;
      place-items: center;
      width: 40px;
      height: 40px;
      border: 1px solid color-mix(in srgb, var(--accent2) 30%, var(--border));
      border-radius: 12px;
      background: color-mix(in srgb, var(--accent2) 9%, var(--surface));
      color: var(--accent2);
    }
    .whats-new-feature-icon svg {
      width: 20px;
      height: 20px;
      fill: none;
      stroke: currentColor;
      stroke-linecap: round;
      stroke-linejoin: round;
      stroke-width: 1.7;
    }
    .whats-new-feature h3,
    .whats-new-more h3 {
      margin: 0.1rem 0 0.25rem;
      font-family: var(--font-body);
      font-size: 0.98rem;
      font-weight: 700;
    }
    .whats-new-feature p {
      margin: 0;
      color: var(--dim);
      font-size: 0.88rem;
      line-height: 1.5;
    }
    .whats-new-more {
      margin-top: 1.35rem;
      border: 1px solid var(--border);
      border-radius: 14px;
      background: var(--surface);
      padding: 0.9rem 1rem;
    }
    .whats-new-more h3 { margin-top: 0; margin-bottom: 0.55rem; }
    .whats-new-more ul {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 0.4rem 1rem;
      list-style: none;
      margin: 0;
      padding: 0;
      color: var(--dim);
      font-size: 0.86rem;
    }
    .whats-new-more li { position: relative; padding-left: 1rem; }
    .whats-new-more li::before {
      content: '';
      position: absolute;
      top: 0.5em;
      left: 0;
      width: 5px;
      height: 5px;
      border-radius: 50%;
      background: var(--accent2);
    }
    .whats-new-confirm { width: 100%; min-height: 44px; margin-top: 1.35rem; font-size: 0.95rem; }

    @media (max-width: 768px) {
      .global-actions .whats-new-button.global-action { gap: 9px; min-height: 44px; padding: 0.65rem 1rem; }
      .global-actions .whats-new-button svg { width: 20px; height: 20px; }
      .whats-new-card { padding: 1.4rem 1.1rem 1.1rem; }
      .whats-new-hero { gap: 0.9rem; }
      .whats-new-app-icon { width: 64px; height: 64px; border-radius: 15px; }
      .whats-new-dialog h2 { font-size: 2.05rem; }
    }
    @media (max-width: 420px) {
      .whats-new-more ul { grid-template-columns: 1fr; }
    }