/* 
  OpenRouter Vanilla Client
  - Vanilla CSS (no preprocessor).
  - Uses Bootstrap for layout/components; this file focuses on app-specific UI and UX.
*/

:root {
  --app-font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", "Liberation Sans", sans-serif;
  --app-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

html, body {
  height: 100%;
}

body.app-body {
  font-family: var(--app-font);
  background: var(--bs-body-bg);
  color: var(--bs-body-color);
}

.app-shell {
  height: 100vh;
  display: flex;
  flex-direction: column;
}

.app-topbar {
  position: sticky;
  top: 0;
  z-index: 1020;
  background: var(--bs-body-bg);
}

.app-main {
  flex: 1;
  display: grid;
  grid-template-columns: 320px 1fr 360px;
  min-height: 0; /* allow children to scroll */
}

.app-sidebar, .app-right, .app-chat {
  min-height: 0;
}

.app-sidebar {
  background: var(--bs-body-bg);
}

.app-right {
  background: var(--bs-body-bg);
}

.app-chat {
  background: var(--bs-body-bg);
}

.app-brand span {
  letter-spacing: -0.2px;
}

#messageList {
  background:
    radial-gradient(circle at 1px 1px, rgba(127,127,127,0.06) 1px, transparent 0) 0 0/18px 18px;
}

.message {
  border-radius: 14px;
  padding: 12px 12px;
  margin-bottom: 12px;
  border: 1px solid var(--bs-border-color);
  background: rgba(127,127,127,0.03);
}

.message .meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--bs-secondary-color);
  margin-bottom: 8px;
}

.message .meta .role {
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.6px;
}

.message .meta .pill {
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(127,127,127,0.10);
  border: 1px solid rgba(127,127,127,0.15);
}

.message .content {
  font-size: 14px;
  line-height: 1.55;
}

.message .reasoning {
  margin-top: 10px;
  border: 1px dashed var(--bs-border-color);
  border-radius: 12px;
  padding: 8px 10px;
  background: rgba(127,127,127,0.04);
}

.message .reasoning summary {
  cursor: pointer;
  font-size: 12px;
  color: var(--bs-secondary-color);
}

.message .reasoning .reasoning-content {
  margin-top: 6px;
  font-size: 13px;
  line-height: 1.55;
  white-space: pre-wrap;
}

.message pre, .app-code {
  font-family: var(--app-mono);
  font-size: 12px;
  line-height: 1.45;
  padding: 12px;
  border-radius: 12px;
  border: 1px solid var(--bs-border-color);
  background: rgba(127,127,127,0.06);
  overflow: auto;
  margin: 0;
}

.message code {
  font-family: var(--app-mono);
  font-size: 0.92em;
}

.message .actions {
  margin-top: 10px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.chat-item {
  border-radius: 12px;
  padding: 10px 10px;
  cursor: pointer;
  border: 1px solid transparent;
}

.chat-item:hover {
  background: rgba(127,127,127,0.06);
  border-color: rgba(127,127,127,0.10);
}

.chat-item.active {
  background: rgba(13,110,253,0.10);
  border-color: rgba(13,110,253,0.25);
}

.chat-item .title {
  font-weight: 600;
  font-size: 13px;
}

.chat-item .sub {
  font-size: 12px;
  color: var(--bs-secondary-color);
  display: flex;
  justify-content: space-between;
  gap: 10px;
}

.app-right-collapsed .app-main {
  grid-template-columns: 320px 1fr 0px;
}

@media (max-width: 991.98px) {
  .app-main {
    grid-template-columns: 1fr; /* sidebar + right panel are offcanvas */
  }
}

.kbd {
  font-family: var(--app-mono);
  font-size: 11px;
  padding: 2px 6px;
  border: 1px solid var(--bs-border-color);
  border-bottom-width: 2px;
  border-radius: 6px;
  background: rgba(127,127,127,0.06);
}