/* Dyshi AI Assistant — floating tutor widget */

.dyshi-ai-root {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 10050;
  font-family: 'Inter', system-ui, sans-serif;
}

.dyshi-ai-toggle {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px 10px 10px;
  border: 1px solid rgba(168, 85, 247, 0.45);
  border-radius: 999px;
  background: linear-gradient(135deg, rgba(30, 15, 50, 0.95), rgba(15, 23, 42, 0.98));
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.45), 0 0 24px rgba(168, 85, 247, 0.2);
  color: #fff;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
}

.dyshi-ai-toggle:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.5), 0 0 32px rgba(168, 85, 247, 0.35);
}

.dyshi-ai-toggle img {
  width: 44px;
  height: 44px;
  object-fit: contain;
  filter: drop-shadow(0 2px 8px rgba(168, 85, 247, 0.4));
}

.dyshi-ai-toggle-label {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  line-height: 1.2;
}

.dyshi-ai-toggle-label strong {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.dyshi-ai-toggle-label span {
  font-size: 11px;
  color: rgba(233, 213, 255, 0.65);
}

.dyshi-ai-panel {
  position: absolute;
  bottom: calc(100% + 12px);
  right: 0;
  width: min(380px, calc(100vw - 32px));
  max-height: min(520px, calc(100vh - 120px));
  display: flex;
  flex-direction: column;
  border-radius: 16px;
  border: 1px solid rgba(168, 85, 247, 0.35);
  background: rgba(12, 8, 24, 0.97);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.55);
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px) scale(0.96);
  transition: opacity 0.22s, transform 0.22s, visibility 0.22s;
}

.dyshi-ai-panel.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.dyshi-ai-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  border-bottom: 1px solid rgba(168, 85, 247, 0.2);
  background: rgba(168, 85, 247, 0.08);
}

.dyshi-ai-head img {
  width: 36px;
  height: 36px;
  object-fit: contain;
}

.dyshi-ai-head-text {
  flex: 1;
  min-width: 0;
}

.dyshi-ai-head-text strong {
  display: block;
  font-size: 14px;
  color: #fff;
}

.dyshi-ai-head-text span {
  font-size: 11px;
  color: rgba(233, 213, 255, 0.6);
}

.dyshi-ai-close {
  background: none;
  border: none;
  color: rgba(233, 213, 255, 0.6);
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 6px;
}

.dyshi-ai-close:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.dyshi-ai-disclaimer {
  padding: 8px 14px;
  font-size: 11px;
  line-height: 1.45;
  color: rgba(233, 213, 255, 0.55);
  background: rgba(0, 0, 0, 0.25);
  border-bottom: 1px solid rgba(168, 85, 247, 0.1);
}

.dyshi-ai-usage {
  display: block;
  margin-top: 6px;
  font-size: 10px;
  color: rgba(196, 181, 253, 0.75);
}

.dyshi-ai-messages {
  flex: 1;
  overflow-y: auto;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 200px;
}

.dyshi-ai-msg {
  max-width: 92%;
  padding: 10px 12px;
  border-radius: 12px;
  font-size: 13px;
  line-height: 1.55;
  white-space: pre-wrap;
  word-break: break-word;
}

.dyshi-ai-msg.user {
  align-self: flex-end;
  background: rgba(168, 85, 247, 0.35);
  color: #f3e8ff;
  border-bottom-right-radius: 4px;
}

.dyshi-ai-msg.assistant {
  align-self: flex-start;
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(168, 85, 247, 0.15);
  border-bottom-left-radius: 4px;
}

.dyshi-ai-msg.system {
  align-self: center;
  font-size: 12px;
  color: rgba(233, 213, 255, 0.5);
  font-style: italic;
  padding: 4px 8px;
}

.dyshi-ai-msg.error {
  align-self: stretch;
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(248, 113, 113, 0.3);
  color: #fecaca;
  font-size: 12px;
}

.dyshi-ai-typing {
  align-self: flex-start;
  padding: 8px 14px;
  font-size: 12px;
  color: rgba(233, 213, 255, 0.5);
}

.dyshi-ai-form {
  display: flex;
  gap: 8px;
  padding: 12px;
  border-top: 1px solid rgba(168, 85, 247, 0.2);
  background: rgba(0, 0, 0, 0.3);
}

.dyshi-ai-input {
  flex: 1;
  min-width: 0;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid rgba(168, 85, 247, 0.25);
  background: rgba(0, 0, 0, 0.4);
  color: #fff;
  font-size: 13px;
  font-family: inherit;
  resize: none;
  outline: none;
  max-height: 100px;
}

.dyshi-ai-input:focus {
  border-color: rgba(168, 85, 247, 0.55);
}

.dyshi-ai-send {
  flex-shrink: 0;
  padding: 10px 14px;
  border: none;
  border-radius: 10px;
  background: linear-gradient(135deg, #a855f7, #7c3aed);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}

.dyshi-ai-send:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

@media (max-width: 480px) {
  .dyshi-ai-root {
    bottom: 16px;
    right: 16px;
  }

  .dyshi-ai-toggle-label {
    display: none;
  }

  .dyshi-ai-panel {
    width: calc(100vw - 32px);
  }
}