/* KI-Lern-Chat – Glas-/Sprechblasen-Look
   Liegt bewusst als eigene Schicht über ki-learning-chat.css.
   Funktion, Playback und inneres Scrollen bleiben in der Basisschicht. */

.learning-chat-page {
  background:
    radial-gradient(circle at 88% 4%, rgba(157,190,227,.23), transparent 28%),
    radial-gradient(circle at 8% 92%, rgba(189,211,236,.18), transparent 26%),
    #eef4fa;
}

.learning-chat-simulation-note {
  border-color: rgba(149,178,211,.42);
  border-radius: 999px;
  background: rgba(255,255,255,.66);
  box-shadow: 0 10px 24px rgba(39,66,101,.07);
  backdrop-filter: blur(12px);
}

.learning-chat-layout {
  border-color: rgba(160,183,210,.46);
  border-radius: 28px;
  background: rgba(255,255,255,.62);
  box-shadow: 0 20px 52px rgba(39,66,101,.11);
  backdrop-filter: blur(14px);
}

.learning-chat-sidebar {
  border-right-color: rgba(167,188,213,.42);
  background:
    linear-gradient(180deg, rgba(233,242,252,.76), rgba(248,251,255,.66)),
    rgba(247,250,253,.70);
  backdrop-filter: blur(16px);
}

.learning-chat-sidebar__head {
  border-bottom-color: rgba(177,196,219,.34);
}

#learning-chat-nav {
  gap: 16px;
  padding: 16px 14px 20px;
}

.learning-chat-nav-group {
  gap: 9px;
}

.learning-chat-nav-group__title {
  padding-inline: 10px;
  color: #7a8ca1;
}

.learning-chat-nav-item {
  padding: 14px 14px 13px;
  border: 1px solid rgba(174,195,219,.52);
  border-radius: 20px;
  background:
    linear-gradient(135deg, rgba(255,255,255,.82), rgba(242,247,253,.70));
  box-shadow: 0 9px 22px rgba(42,71,108,.065);
  transition:
    background .16s ease,
    border-color .16s ease,
    box-shadow .16s ease,
    transform .16s ease;
}

.learning-chat-nav-item:hover {
  transform: translateY(-1px);
  border-color: rgba(127,164,207,.58);
  background:
    linear-gradient(135deg, rgba(247,251,255,.94), rgba(232,242,253,.76));
  box-shadow: 0 13px 28px rgba(42,71,108,.10);
}

.learning-chat-nav-item.is-active {
  border-color: rgba(98,146,204,.56);
  background:
    linear-gradient(135deg, rgba(229,241,255,.95), rgba(255,255,255,.90));
  box-shadow:
    0 16px 34px rgba(63,103,158,.13),
    inset 0 1px 0 rgba(255,255,255,.78);
}

.learning-chat-nav-item__title {
  font-size: .95rem;
}

.learning-chat-nav-item__desc {
  color: #6f8093;
}

.learning-chat-nav-item__check {
  display: inline-grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border: 1px solid rgba(71,153,104,.22);
  border-radius: 50%;
  background: rgba(87,174,120,.10);
}

.learning-chat-sidebar__footer {
  border-top-color: rgba(177,196,219,.34);
  background: rgba(255,255,255,.30);
}

.learning-chat-panel {
  background:
    radial-gradient(circle at 84% 2%, rgba(150,187,227,.12), transparent 300px),
    linear-gradient(180deg, rgba(255,255,255,.52), rgba(248,251,255,.42));
}

.learning-chat-panel__head {
  border-bottom-color: rgba(177,196,219,.36);
  background: rgba(255,255,255,.66);
  backdrop-filter: blur(14px);
}

.learning-chat-status {
  border-color: rgba(72,159,109,.20);
  border-radius: 999px;
  background: rgba(112,198,143,.12);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.58);
}

.learning-chat-stream {
  background:
    linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.02)),
    radial-gradient(circle at 12% 10%, rgba(196,218,242,.20), transparent 34%);
}

.learning-chat-message {
  align-items: flex-end;
}

.learning-chat-avatar {
  width: 38px;
  height: 38px;
  border-color: rgba(139,175,216,.48);
  border-radius: 14px;
  background:
    linear-gradient(135deg, rgba(244,249,255,.96), rgba(205,226,248,.88));
  box-shadow: 0 8px 18px rgba(42,71,108,.10);
}

.learning-chat-bubble {
  max-width: min(780px, 88%);
  padding: 15px 17px;
  border: 1px solid rgba(174,194,218,.56);
  border-radius: 24px;
  box-shadow:
    0 14px 28px rgba(40,65,99,.075),
    inset 0 1px 0 rgba(255,255,255,.62);
  backdrop-filter: blur(14px);
}

.learning-chat-bubble--assistant {
  border-top-left-radius: 11px;
  background:
    linear-gradient(135deg, rgba(255,255,255,.82), rgba(241,247,252,.86));
}

.learning-chat-bubble--user {
  border-top-right-radius: 11px;
  border-color: rgba(127,165,211,.52);
  background:
    linear-gradient(135deg, rgba(220,237,253,.76), rgba(197,222,248,.48));
}

.learning-chat-attachment {
  border-color: rgba(174,194,218,.56);
  border-radius: 18px;
  background: rgba(255,255,255,.58);
  box-shadow:
    0 8px 18px rgba(42,71,108,.07),
    inset 0 1px 0 rgba(255,255,255,.55);
  backdrop-filter: blur(10px);
}

.learning-chat-attachment__icon {
  border-radius: 13px;
  background: rgba(229,238,248,.80);
}

.learning-chat-lesson {
  border-radius: 18px;
  border-left-width: 1px;
  background: rgba(231,247,238,.72);
  box-shadow: 0 9px 22px rgba(50,105,76,.07);
  backdrop-filter: blur(10px);
}

.learning-chat-checkpoint {
  border-radius: 18px;
  background: rgba(237,245,255,.74);
  box-shadow: 0 9px 22px rgba(46,83,126,.07);
  backdrop-filter: blur(10px);
}

.learning-chat-checkpoint--warning {
  border-left-width: 1px;
  background: rgba(255,241,237,.82);
}

.learning-chat-link {
  border-color: rgba(124,162,205,.42);
  border-radius: 999px;
  background: rgba(255,255,255,.62);
  box-shadow: 0 8px 18px rgba(42,71,108,.06);
  backdrop-filter: blur(10px);
}

.learning-chat-link:hover {
  background: rgba(238,246,255,.84);
}

.learning-chat-controls {
  border-top-color: rgba(177,196,219,.34);
  background: rgba(247,250,253,.58);
  backdrop-filter: blur(10px);
}

.learning-chat-controls button,
.learning-chat-sidebar-toggle,
.learning-chat-sidebar__close {
  border-color: rgba(167,188,213,.52);
  border-radius: 14px;
  background: rgba(255,255,255,.66);
  box-shadow: 0 6px 16px rgba(42,71,108,.055);
}

.learning-chat-controls button:hover,
.learning-chat-sidebar-toggle:hover,
.learning-chat-sidebar__close:hover {
  border-color: rgba(111,153,203,.50);
  background: rgba(237,246,255,.84);
}

.learning-chat-composer-wrap {
  border-top-color: rgba(177,196,219,.34);
  background: rgba(255,255,255,.54);
  backdrop-filter: blur(12px);
}

.learning-chat-composer-row {
  border-color: rgba(163,187,215,.56);
  border-radius: 22px;
  background: rgba(255,255,255,.70);
  box-shadow:
    0 10px 24px rgba(42,71,108,.08),
    inset 0 1px 0 rgba(255,255,255,.72);
  backdrop-filter: blur(12px);
}

.learning-chat-plus,
.learning-chat-send {
  border-color: rgba(159,183,211,.50);
  border-radius: 13px;
  background: rgba(244,248,253,.92);
  box-shadow: 0 5px 14px rgba(42,71,108,.055);
}

.learning-chat-send {
  border-color: rgba(83,132,192,.55);
  background: linear-gradient(135deg, #5c8cc7, #76a4da);
  box-shadow: 0 8px 18px rgba(76,125,185,.22);
}

#learning-chat-composer {
  color: #31465d;
}

@media (max-width: 860px) {
  .learning-chat-layout {
    border-radius: 24px;
  }

  .learning-chat-sidebar {
    border-radius: 24px 0 0 24px;
    background:
      linear-gradient(180deg, rgba(237,245,254,.96), rgba(249,252,255,.94));
  }
}

@media (max-width: 620px) {
  .learning-chat-layout {
    border-radius: 20px;
  }

  .learning-chat-bubble {
    border-radius: 21px;
  }

  .learning-chat-bubble--assistant {
    border-top-left-radius: 10px;
  }

  .learning-chat-bubble--user {
    border-top-right-radius: 10px;
  }

  .learning-chat-nav-item {
    border-radius: 18px;
  }
}