/* ==================================================
   FAVORIT – THEMENSEITE
================================================== */

.vocab-topic-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 0;
}

.vocab-topic-heading .section-title {
  flex: 1;
  margin-bottom: 0;
}

.topic-favorite-button {
  flex: 0 0 auto;

  width: 44px;
  height: 44px;

  display: inline-flex;
  align-items: center;
  justify-content: center;

  padding: 0;
  border: 0;
  border-radius: 50%;

  background: rgba(255, 255, 255, 0.72);
  color: #222;

  font-size: 21px;
  line-height: 1;

  cursor: pointer;

  box-shadow:
    0 4px 14px rgba(0, 0, 0, 0.08),
    inset 0 0 0 1px rgba(0, 0, 0, 0.06);

  transition:
    transform 0.12s ease,
    background-color 0.12s ease,
    box-shadow 0.12s ease;
}

.topic-favorite-button:hover {
  background: #fff;
  box-shadow:
    0 6px 18px rgba(0, 0, 0, 0.12),
    inset 0 0 0 1px rgba(0, 0, 0, 0.08);
}

.topic-favorite-button:active {
  transform: scale(0.94);
}

.topic-favorite-button:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 3px;
}

@media (max-width: 768px) {

  .vocab-topic-heading {
    gap: 12px;
  }

  .topic-favorite-button {
    width: 42px;
    height: 42px;
    font-size: 20px;
  }

}

@media (prefers-color-scheme: dark) {

  .topic-favorite-button {
    background: rgba(255, 255, 255, 0.12);
    color: #f5f5f7;

    box-shadow:
      0 4px 14px rgba(0, 0, 0, 0.28),
      inset 0 0 0 1px rgba(255, 255, 255, 0.12);
  }

  .topic-favorite-button:hover {
    background: rgba(255, 255, 255, 0.18);

    box-shadow:
      0 6px 18px rgba(0, 0, 0, 0.35),
      inset 0 0 0 1px rgba(255, 255, 255, 0.16);
  }

}

.topic-favorite-button.is-favorite {
  background: rgba(255, 255, 255, 0.9);
  color: #e53935;
}

.topic-favorite-button.is-favorite:hover {
  background: #fff;
}

@media (prefers-color-scheme: dark) {

  .topic-favorite-button.is-favorite {
    background: rgba(255, 255, 255, 0.18);
    color: #ec6b64;

    box-shadow:
      0 6px 18px rgba(0, 0, 0, 0.38),
      inset 0 0 0 1px rgba(255, 255, 255, 0.18);
  }

  .topic-favorite-button.is-favorite:hover {
    background: rgba(255, 255, 255, 0.24);
    color: rgb(240, 128, 120);
  }

}

.grammar-topic-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.grammar-topic-heading h1 {
  flex: 1;
  margin-bottom: 0;
}

@media (max-width: 768px) {
  .grammar-topic-heading {
    gap: 12px;
  }
}


/* AKTIV */
.topic-favorite-button.is-favorite i {
  color: currentColor;
  -webkit-text-stroke: 0;
}

/* DARK MODE – INAKTIV */
@media (prefers-color-scheme: dark) {
  .grammar-topic-heading .topic-favorite-button:not(.is-favorite) i {
    color: transparent;
    -webkit-text-stroke: 1.8px #f5f5f7;
  }
}


/* ==================================================
   FAVORIT – GRAMMATIK
================================================== */

.grammar-topic-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.grammar-topic-heading h1 {
  flex: 1;
  margin-bottom: 0;
}

/* Nur auf Grammatikseiten optisch zentrieren */
.grammar-topic-heading .topic-favorite-button i {
  transform: translate(3px, 2px);
}

@media (max-width: 768px) {
  .grammar-topic-heading {
    gap: 12px;
  }
}
/* GRAMMATIK – inaktiver Favorit als Kontur */
.grammar-topic-heading .topic-favorite-button:not(.is-favorite) i {
  color: transparent;
  -webkit-text-stroke: 1.8px #222;
}

@media (prefers-color-scheme: dark) {
  .grammar-topic-heading .topic-favorite-button:not(.is-favorite) i {
    color: transparent;
    -webkit-text-stroke: 1.8px #f5f5f7;
  }
}

/* GRAMMATIK – aktiver Favorit bleibt nur als Kontur */
.grammar-topic-heading .topic-favorite-button.is-favorite i {
  color: transparent;
  -webkit-text-stroke: 1.8px #e53935;
}

@media (prefers-color-scheme: dark) {
  .grammar-topic-heading .topic-favorite-button.is-favorite i {
    color: transparent;
    -webkit-text-stroke: 1.8px #ec6b64;
  }
}

/* ==================================================
   FAVORITEN – LOGIN OVERLAY
================================================== */

.favorite-login-overlay {
  position: fixed;
  inset: 0;
  z-index: 99999;

  display: flex;
  align-items: center;
  justify-content: center;

  padding: 20px;

  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);

  opacity: 0;
  visibility: hidden;

  transition:
    opacity 0.18s ease,
    visibility 0.18s ease;
}

.favorite-login-overlay.is-visible {
  opacity: 1;
  visibility: visible;
}

.favorite-login-dialog {
  position: relative;

  width: min(100%, 390px);
  padding: 32px 28px 28px;

  border-radius: 22px;
  background: #fff;

  text-align: center;

  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.22);

  transform: translateY(8px) scale(0.98);
  transition: transform 0.18s ease;
}

.favorite-login-overlay.is-visible .favorite-login-dialog {
  transform: translateY(0) scale(1);
}

.favorite-login-close {
  position: absolute;
  top: 12px;
  right: 14px;

  width: 36px;
  height: 36px;

  border: 0;
  border-radius: 50%;

  background: transparent;
  color: #555;

  font-size: 26px;
  line-height: 1;

  cursor: pointer;
}

.favorite-login-close:hover {
  background: rgba(0, 0, 0, 0.06);
}

.favorite-login-icon {
  width: 54px;
  height: 54px;
  margin: 0 auto 16px;

  display: flex;
  align-items: center;
  justify-content: center;

  border-radius: 50%;

  background: rgba(229, 57, 53, 0.08);
  color: #e53935;

  font-size: 24px;
}

.favorite-login-dialog h2 {
  margin: 0 0 8px;
  font-size: 1.35rem;
}

.favorite-login-dialog p {
  margin: 0 0 22px;
  line-height: 1.5;
  color: #666;
}

.favorite-login-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;

  min-width: 220px;
  min-height: 52px;

  padding: 0 28px;

  border: 0;
  border-radius: 14px;

  background: #1f2329;
  color: #fff;

  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.01em;

  text-decoration: none;

  box-shadow:
    0 8px 22px rgba(0, 0, 0, 0.14);

  transition:
    transform 0.15s ease,
    background-color 0.15s ease,
    box-shadow 0.15s ease;
}

.favorite-login-button:hover {
  background: #111418;

  box-shadow:
    0 10px 26px rgba(0, 0, 0, 0.18);

  transform: translateY(-1px);
}

.favorite-login-button:active {
  transform: translateY(0) scale(0.98);
}

.favorite-login-button:focus {
  outline: none;
}

.favorite-login-button:focus-visible {
  outline: 3px solid rgba(53, 111, 159, 0.28);
  outline-offset: 4px;
}
@media (prefers-color-scheme: dark) {

  .favorite-login-dialog {
    background: #1d1f23;
    color: #f5f5f7;
  }

  .favorite-login-dialog p {
    color: rgba(255, 255, 255, 0.68);
  }

  .favorite-login-close {
    color: #ddd;
  }

  .favorite-login-close:hover {
    background: rgba(255, 255, 255, 0.08);
  }

  .favorite-login-icon {
    background: rgba(236, 107, 100, 0.12);
    color: #ec6b64;
  }
}

@media (prefers-color-scheme: dark) {

  .favorite-login-button {
    background: #f5f5f7;
    color: #1c1e22;

    box-shadow:
      0 8px 24px rgba(0, 0, 0, 0.28);
  }

  .favorite-login-button:hover {
    background: #ffffff;

    box-shadow:
      0 10px 28px rgba(0, 0, 0, 0.34);

    transform: translateY(-1px);
  }

  .favorite-login-button:active {
    transform: scale(0.98);
  }

  .favorite-login-button:focus-visible {
    outline: 3px solid rgba(236, 107, 100, 0.32);
    outline-offset: 4px;
  }

}