/* Content panels and additional library hub. Sidebar drawer selectors stay separate. */
html.ufc-panel-open { overflow: hidden; }
.ufc-panel-backdrop { position: fixed; inset: 0; z-index: 1200; background: rgba(3, 18, 34, .48); }
.ufc-panel-backdrop[hidden], .ufc-panel[hidden] { display: none !important; }
.ufc-panel { position: fixed; top: 0; right: 0; bottom: 0; z-index: 1201; width: min(560px, 100vw); height: 100vh; height: 100dvh; display: grid; grid-template-rows: auto minmax(0, 1fr) auto; background: var(--ufc-surface, var(--ufc-white, #fff)); color: var(--ufc-text); border-left: 1px solid var(--ufc-line); box-shadow: -20px 0 60px rgba(3, 18, 34, .22); }
.ufc-panel-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 20px; padding: 24px; border-bottom: 1px solid var(--ufc-line); }
.ufc-panel-header h2 { margin: 4px 0 0; font-size: 23px; line-height: 1.25; }
.ufc-panel-close { display: grid; place-items: center; flex: 0 0 44px; min-width: 44px; min-height: 44px; border: 1px solid var(--ufc-line); border-radius: 12px; background: transparent; color: inherit; font-size: 26px; cursor: pointer; }
.ufc-panel-body { min-height: 0; overflow-y: auto; overscroll-behavior: contain; padding: 24px; scrollbar-gutter: stable; }
.ufc-panel-footer { padding: 20px 24px calc(20px + env(safe-area-inset-bottom)); border-top: 1px solid var(--ufc-line); background: var(--ufc-surface, var(--ufc-white, #fff)); }
.ufc-panel-footer form { display: grid; gap: 10px; }
.ufc-panel-footer label { font-size: 13px; font-weight: 750; }
.ufc-panel-footer textarea { width: 100%; min-height: 90px; max-height: 160px; resize: vertical; padding: 12px; border: 1px solid var(--ufc-line); border-radius: 12px; background: var(--ufc-bg); color: inherit; font: inherit; }
.ufc-panel-footer button[type="submit"] { justify-self: start; }
.ufc-panel-footer [role="status"] { font-size: 12px; color: var(--ufc-muted); margin: 0; }
.ufc-panel :focus-visible, .ufc-tutor-launcher-button:focus-visible { outline: 3px solid var(--ufc-gold); outline-offset: 3px; }
.ufc-tutor-launcher { margin: 0; }
.ufc-tutor-launcher > header { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.ufc-tutor-launcher h2 { margin: 0; font-size: 17px; }
.ufc-tutor-mode-badge { font-size: 10px; color: var(--ufc-muted); }
.ufc-tutor-launcher-button { gap: 10px; }
.ufc-tutor-launcher-button small { font-size: 10px; font-weight: 650; color: var(--ufc-muted); }
.ufc-tutor-launcher-button svg { width: 18px; height: 18px; }
.ufc-tutor-context { border-left: 3px solid var(--ufc-gold); padding-left: 12px; font-size: 13px; }
.ufc-tutor-history, .ufc-tutor-response { overflow-wrap: anywhere; }
.ufc-tutor-response, .ufc-tutor-turn { padding: 18px; margin-top: 18px; border: 1px solid var(--ufc-line); border-radius: 14px; background: var(--ufc-bg); }
.ufc-tutor-response [data-ufc-tutor-answer], .ufc-tutor-turn p { white-space: pre-wrap; }
.ufc-tutor-response [data-ufc-tutor-question-label], .ufc-tutor-turn h3 { margin: 0 0 10px; font-size: 13px; font-weight: 750; }
.ufc-tutor-links { display: flex; flex-direction: column; gap: 10px; font-size: 13px; }
.ufc-library-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 24px; margin-bottom: 28px; }
.ufc-library-heading h2 { margin: 4px 0 8px; font-size: 28px; letter-spacing: -.025em; }
.ufc-library-heading p { margin: 0; max-width: 640px; color: var(--ufc-muted); }
.ufc-library-groups { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.ufc-library-card { min-width: 0; display: flex; flex-direction: column; align-items: flex-start; padding: 24px; border: 1px solid var(--ufc-line); border-radius: 18px; background: var(--ufc-surface, var(--ufc-white, #fff)); box-shadow: var(--ufc-shadow); }
.ufc-library-card h3 { margin: 18px 0 8px; font-size: 19px; line-height: 1.25; }
.ufc-library-card p { color: var(--ufc-muted); font-size: 14px; margin: 0 0 18px; }
.ufc-library-icon { width: 48px; height: 48px; display: grid; place-items: center; background: var(--ufc-bg); border: 1px solid var(--ufc-line); border-radius: 14px; color: var(--ufc-blue); }
.ufc-library-icon svg { width: 24px; height: 24px; }
.ufc-library-count { margin-top: auto; font-size: 12px; color: var(--ufc-muted); }
.ufc-library-card .ufc-text-link { display: inline-flex; align-items: center; gap: 10px; margin-top: 16px; min-height: 32px; }
.ufc-library-note { margin-top: 24px; color: var(--ufc-muted); font-size: 13px; }
@media (max-width: 900px) { .ufc-library-groups { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 640px) {
 .ufc-panel { width: 100vw; border-left: 0; }
 .ufc-panel-header, .ufc-panel-body { padding: 18px; }
 .ufc-panel-footer { padding: 16px 18px calc(16px + env(safe-area-inset-bottom)); }
 .ufc-library-heading { flex-direction: column; gap: 16px; }
 .ufc-library-groups { grid-template-columns: minmax(0, 1fr); gap: 16px; }
 .ufc-library-card { padding: 20px; }
 .ufc-tutor-launcher-button small { display: none; }
}