/**
 * Wiederverwendbare Bausteine: Buttons, Dialoge, Hinweise, Banner, Einrichtungs-Assistent, Statusliste, QR.
 * Klassen beginnen mit "tb-". Farben und Maße kommen nur aus theme.css (keine festen Werte).
 */

/* ---------------------------------------------------------------- Buttons */

.tb-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  min-height: var(--touch-target-min);
  padding: 0 var(--space-lg);
  border: 2px solid transparent;
  border-radius: var(--radius-full);
  font: inherit;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: background-color var(--transition-base), border-color var(--transition-base), color var(--transition-base);
}
.tb-btn--primary { background: var(--color-primary); color: var(--color-on-primary); }
.tb-btn--primary:hover { background: var(--color-primary-dark); }
/* Warnaktion: kräftiges Rot mit weißer Schrift, gleiche Form und Wirkung wie der Primärknopf */
.tb-btn--danger { background: color-mix(in srgb, var(--color-error) 82%, var(--color-black)); color: var(--color-on-primary); box-shadow: 0 0 18px color-mix(in srgb, var(--color-error) 35%, transparent); }
.tb-btn--danger:hover { background: var(--color-error); }
.tb-btn--ghost { background: transparent; color: var(--text-primary); border-color: var(--border-color); }
.tb-btn--ghost:hover, .tb-btn--ghost:focus-visible { background: var(--color-primary); border-color: var(--color-primary); color: var(--color-on-primary); }   /* gefüllt in Primary, wie die runden Icon-Knöpfe */
.tb-btn--block { display: flex; width: 100%; margin-top: var(--space-md); }
.tb-btn[disabled] { opacity: 0.5; cursor: not-allowed; }

/* ---------------------------------------------------------------- Dialog */

.tb-modal-open { overflow: hidden; }

.tb-dialog {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md);
  /* Bewusst nur Deckkraft, nicht visibility: ein unsichtbares Element kann keinen Fokus erhalten */
  opacity: 0;
  transition: opacity 0.16s ease;
}
.tb-dialog--visible { opacity: 1; }

.tb-dialog__backdrop {
  position: absolute;
  inset: 0;
  background: var(--backdrop);
  backdrop-filter: blur(4px);
}

.tb-dialog__panel {
  position: relative;
  width: 100%;
  max-width: 28rem;
  max-height: 90vh;
  /* Titel und Knöpfe bleiben stehen, nur der Inhalt scrollt (lange Listen wie Zuordnen, Dateiansicht) */
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding: var(--space-lg);
  /* Glas-Karte mit feiner Farblinie oben und leichter Tönung je Variante (--dialog-tone) */
  --dialog-tone: var(--color-primary);
  background:
    radial-gradient(120% 70% at 0% 0%, color-mix(in srgb, var(--dialog-tone) 16%, transparent), transparent 60%),
    color-mix(in srgb, var(--bg-card) 94%, transparent);
  backdrop-filter: blur(16px);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md), 0 0 32px color-mix(in srgb, var(--dialog-tone) 22%, transparent);
  transform: translateY(-8px) scale(0.98);
  transition: transform 0.16s ease;
}
.tb-dialog__panel::before {
  content: ""; position: absolute; left: var(--space-lg); right: var(--space-lg); top: 0; height: 3px; border-radius: 0 0 3px 3px;
  background: linear-gradient(90deg, var(--dialog-tone), color-mix(in srgb, var(--dialog-tone) 30%, transparent));
}
.tb-dialog--visible .tb-dialog__panel { transform: none; }
.tb-dialog__panel--default::before { background: var(--gradient-primary); }
.tb-dialog__panel--success { --dialog-tone: var(--color-success); }
.tb-dialog__panel--warning { --dialog-tone: var(--color-warning); }
.tb-dialog__panel--error,
.tb-dialog__panel--danger { --dialog-tone: var(--color-error); }

.tb-dialog__title { font-size: 1.25rem; margin-bottom: var(--space-sm); }
/* Anleitung (Hilfe-Dialog): breiter, mit Reitern je Rolle */
.tb-dialog__panel--doc { max-width: 46rem; }
.tb-dialog__panel--doc .tb-dialog__message { display: none; }
.tb-dialog__message { color: var(--text-secondary); }
.tb-dialog__content { flex: 1 1 auto; min-height: 0; overflow: auto; overscroll-behavior: contain; margin: 0 calc(-1 * var(--space-xs)) var(--space-md); padding: 0 var(--space-xs); }
.tb-dialog__title, .tb-dialog__message, .tb-dialog__footer { flex: 0 0 auto; }
.tb-dialog__footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

/* ---------------------------------------------------------------- Toast */

.tb-toasts {
  position: fixed;
  left: 0; right: 0;
  bottom: max(var(--space-md), env(safe-area-inset-bottom));
  z-index: 10000;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  padding: 0 var(--space-md);
  pointer-events: none;
}
.tb-toast {
  max-width: 28rem;
  padding: var(--space-sm) var(--space-lg);
  background: var(--color-black);
  color: var(--color-white);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  animation: tb-toast-in 0.2s ease;
}
.tb-toast--success { border-left-color: var(--color-success); }
.tb-toast--warning { border-left-color: var(--color-warning); }
.tb-toast--error   { border-left-color: var(--color-error); }
.tb-toast--leaving { opacity: 0; transition: opacity 0.25s ease; }
@keyframes tb-toast-in { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

/* ---------------------------------------------------------------- Banner (Update, Installation) */

.tb-banner {
  position: fixed;
  left: var(--space-md); right: var(--space-md);
  bottom: max(var(--space-md), env(safe-area-inset-bottom));
  z-index: 9000;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  max-width: 40rem;
  margin: 0 auto;
  padding: var(--space-md) var(--space-lg);
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}
/* erzwungenes Update (min_build): kräftiger Rand, kein "Später" */
.tb-banner--forced { border-color: var(--color-warning); border-left-width: 6px; border-left-color: var(--color-warning); }
.tb-banner__text { display: grid; gap: 2px; }
.tb-banner__text span { color: var(--text-secondary); font-size: 0.9rem; }
.tb-banner__actions { display: flex; gap: var(--space-sm); }

/* ---------------------------------------------------------------- Einrichtungs-Assistent */

.tb-wizard { display: grid; gap: var(--space-md); }
.tb-step {
  padding: var(--space-md);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
}
.tb-step__head { display: flex; align-items: center; gap: var(--space-sm); margin-bottom: var(--space-sm); }
.tb-step__title { margin: 0; font-size: 1.05rem; }
.tb-step__num {
  flex: none;
  display: grid; place-items: center;
  width: 1.75rem; height: 1.75rem;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-on-primary);
  font-weight: 700;
}
.tb-step__body > :last-child { margin-bottom: 0; }
.tb-step--done .tb-step__num { background: var(--color-success); color: var(--color-black); }
.tb-step--done .tb-step__num::before { content: "\2713"; }
.tb-step--done .tb-step__num { font-size: 0; }
.tb-step--done .tb-step__num::before { font-size: 1rem; }
.tb-step--locked,
.tb-step--unavailable { opacity: 0.75; }
.tb-step--locked .tb-step__num,
.tb-step--unavailable .tb-step__num { background: var(--text-secondary); }

.tb-steps { margin: 0 0 var(--space-md); padding-left: 1.25rem; }
.tb-steps li { margin-bottom: var(--space-xs); }

/* ---------------------------------------------------------------- Statusliste */

.tb-status { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--space-sm); }
.tb-status__item {
  display: flex; align-items: center; gap: var(--space-sm);
  min-height: var(--touch-target-min);
  padding: 0 var(--space-md);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
}
.tb-status__item--ok { border-left: 4px solid var(--color-success); }
.tb-status__item--locked,
.tb-status__item--off { color: var(--text-secondary); }
.tb-status__action {
  flex: 1;
  min-height: var(--touch-target-min);
  background: none; border: 0; padding: 0;
  text-align: left; font: inherit; font-weight: 600;
  color: var(--color-accent-text);
  cursor: pointer;
}

/* ---------------------------------------------------------------- Offline-Seite */

.tb-offline { display: grid; place-items: center; min-height: 100vh; text-align: center; }
.tb-offline__box { max-width: 26rem; padding: var(--space-xl) var(--space-lg); }
.tb-offline__logo { border-radius: var(--radius-lg); margin-bottom: var(--space-md); }