/* Grid für Tool-Cards */
.tool-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  justify-content: center; /* sorgt für zentrierte letzte Zeile */
}

.tool-grid.tool-grid-grouped {
  display: block;
}

/* Responsive Columns */
@media (max-width: 960px) {
  .tb-main {
    padding: 20px 16px;
  }

  .tool-card {
    flex: 0 1 calc(50% - 10px); /* 2 Spalten */
  }
}

@media (max-width: 640px) {
  .tb-header {
    padding: 12px 12px;
  }

  .tb-main {
    padding: 16px 10px;
  }

  .tb-section {
    padding: 18px 14px 20px;
  }

  .tool-card {
    flex: 0 1 100%; /* 1 Spalte */
  }
}

/* Jede Card kann ihre eigene Akzentfarbe via CSS-Variablen haben. */
.tool-card {
  --tool-accent: var(--accent);
  --tool-accent-soft: var(--accent-soft);
  --tool-accent-strong: var(--accent-strong);
  --tool-hover-image: none;
  --tool-hover-image-opacity: 1;

  position: relative;
  display: flex;
  z-index: 0;
  flex-direction: column;
  gap: 10px;
  padding: 14px;
  border-radius: var(--card-radius);
  background: linear-gradient(
    145deg,
    rgba(24, 26, 32, 0.98),
    rgba(13, 15, 20, 0.98)
  );
  border: 1px solid rgba(255, 255, 255, 0.04);
  text-decoration: none;
  color: inherit;
  box-shadow: 0 14px 35px rgba(0, 0, 0, 0.7);
  transform: translateY(0px);
  transition:
    transform var(--transition-med),
    box-shadow var(--transition-med),
    border-color var(--transition-fast),
    background var(--transition-med),
    filter var(--transition-fast);
  cursor: pointer;
  overflow: hidden;
  flex: 0 1 calc(33.333% - 12px);
  max-width: 340px;
}

/* Partikel am unteren Card-Rand, die nach oben steigen */
.tool-card-particle {
  position: absolute;
  bottom: -6px; /* Start knapp unterhalb */
  width: 3px;
  height: 7px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--tool-accent) 70%, #ffffff 35%);
  opacity: 0;
  pointer-events: none;
  filter: blur(0.6px);
  /* Dauer wird per JS gesetzt (animationDuration) */
  animation-name: tool-card-particle-rise;
  animation-timing-function: ease-out;
  animation-fill-mode: forwards;
}

/* Achtung: hier jetzt Distanz in Pixeln, nicht % */
@keyframes tool-card-particle-rise {
  0% {
    transform: translate3d(0, 0, 0) scale(var(--particle-scale, 1));
    opacity: 0;
  }
  20% {
    opacity: 0.9;
  }
  100% {
    transform: translate3d(
      0,
      calc(-1 * var(--particle-distance-px, 80px)),
      0
    ) scale(0.4);
    opacity: 0;
  }
}


.tool-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 55px rgba(0, 0, 0, 0.9);
  border-color: rgba(0, 0, 0, 0.7);
  background: radial-gradient(circle at top left, rgba(0, 0, 0, 0.3), #0f1118);
  filter: brightness(1.03);
}

/* Standard-Glow (wenn KEIN Bild benutzt wird) */
.tool-card::before {
  content: "";
  position: absolute;
  inset: -40%;
  background: radial-gradient(
    circle at top left,
    color-mix(in srgb, var(--tool-accent) 45%, transparent),
    transparent 55%
  );
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-med), filter var(--transition-med);
  z-index: -1;
}

/* Frosted-Image-Overlay (wenn Bild aktiviert ist) */
.tool-card.tool-card--hover-image::before {
  background:
    linear-gradient(
      to bottom,
      rgba(0, 0, 0, 0.15),
      rgba(0, 0, 0, 0.35)
    ),
    var(--tool-hover-image);
  background-size: cover;
  background-position: center;
  filter:
    blur(var(--tool-hover-image-blur, 14px))
    saturate(var(--tool-hover-image-saturation, 1.0));
}

/* Hover steuert nur die Sichtbarkeit */
.tool-card:hover::before {
  opacity: var(--tool-hover-image-opacity, 0.6);
}

/* Card Content */
.tool-card-top {
  display: flex;
  align-items: center;
  gap: 10px;
}

.tool-card-icon {
  width: 38px;
  height: 38px;
  border-radius: 14px;
  background: radial-gradient(
    circle at 20% 20%,
    color-mix(in srgb, var(--tool-accent) 20%, #ffffff),
    var(--tool-accent)
  );
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  flex-shrink: 0;
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.06),
    0 12px 24px rgba(0, 0, 0, 0.8);
  overflow: hidden; /* wichtig für Bild-Icons */
}

.tool-card-meta {
  flex: 1;
  min-width: 0;
}

.tool-card-name {
  margin: 0;
  font-size: 0.98rem;
  font-weight: 600;
}

.tool-card-type {
  margin: 2px 0 0;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-soft);
}

.tool-card-desc {
  margin: 10px 0 0;
  font-size: 0.84rem;
  color: var(--text-muted);
}

/* Footer in Card */
.tool-card-footer {
  margin-top: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.78rem;
  color: var(--text-soft);
}

.tool-card-tag {
  padding: 3px 8px;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--tool-accent) 60%, transparent);
  background: color-mix(in srgb, var(--tool-accent) 18%, transparent);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.7rem;
  z-index: 1;
}

.tool-card-arrow {
  opacity: 0.7;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.tool-card:hover .tool-card-arrow {
  transform: translateX(2px);
  opacity: 1;
}

/* Bild-Icon im Kreis */
.tool-card-icon-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Buchstaben-Icon explizit */
.tool-card-icon-letter {
  background: var(--tool-accent-strong);
  color: #fff;
}

/* Kategorien-Ansicht */

.tool-category {
  margin-bottom: 22px;
}

.tool-category-title {
  margin: 0 0 8px 2px;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--text-soft);
}

.tool-category-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  justify-content: flex-start;
}