@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap";:root{--color-primary:#20b8cd;--color-primary-light:#e8f8fa;--color-primary-dark:#1a9aad;--color-bg:#fff;--color-bg-secondary:#f7f7f5;--color-bg-tertiary:#efefed;--color-text:#1b1b1b;--color-text-secondary:#636363;--color-text-muted:#999;--color-border:#e5e5e3;--color-border-light:#f0f0ee;--color-success:#22c55e;--color-warning:#f59e0b;--color-error:#ef4444;--color-annotation:#7c3aed;--color-annotation-light:#f3f0ff;--radius-sm:6px;--radius-md:10px;--radius-lg:14px;--radius-xl:20px;--shadow-sm:0 1px 3px #0000000f;--shadow-md:0 2px 8px #00000014;--shadow-lg:0 4px 16px #0000001a;--font-family:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", 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.15s}.source-card:last-child{border-bottom:none}.source-card:hover{background:var(--color-bg-secondary)}.source-card.active{background:var(--color-primary-light);border-left:3px solid var(--color-primary);padding-left:29px}.source-card-link{color:var(--color-text-muted);border-radius:4px;flex-shrink:0;padding:2px 4px;font-size:13px;line-height:1;text-decoration:none;transition:all .15s}.source-card-link:hover{color:var(--color-primary-dark);background:var(--color-primary-light)}.source-card-section{color:var(--color-primary-dark);font-size:12.5px;font-weight:500}.source-card-meta{gap:8px;margin-top:4px;display:flex}.source-card-badge{background:var(--color-bg-secondary);color:var(--color-text-muted);border-radius:4px;padding:2px 6px;font-size:10px}.source-card-expanded{border-top:1px solid var(--color-border-light);margin-top:10px;padding-top:10px;animation:.25s fadeIn}.source-card-blocks{margin-bottom:4px}.sources-empty{height:100%;color:var(--color-text-muted);text-align:center;flex-direction:column;justify-content:center;align-items:center;padding:20px;font-size:13px;display:flex}.sources-empty-icon{margin-bottom:8px;font-size:32px}.chat-header{-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--color-border-light);z-index:5;background:#ffffffd9;flex-shrink:0;justify-content:space-between;align-items:center;padding:12px 24px;display:flex}.model-selector-container{align-items:center;gap:12px;width:100%;display:flex}.model-selector-label{text-transform:uppercase;letter-spacing:.8px;color:var(--color-text-secondary);flex-shrink:0;font-size:10.5px;font-weight:700}.model-selector-chips{flex-wrap:wrap;gap:8px;display:flex}.model-chip{border:1.5px solid var(--color-border);color:var(--color-text-secondary);cursor:pointer;font-size:12px;font-weight:500;font-family:var(--font-family);background:#f7f7f580;border-radius:20px;outline:none;align-items:center;gap:8px;padding:6px 12px;transition:all .2s cubic-bezier(.4,0,.2,1);display:flex}.model-chip:hover{border-color:var(--color-text-secondary);color:var(--color-text);background:var(--color-bg)}.model-chip.active{border-color:var(--color-primary);background:var(--color-primary-light);color:var(--color-primary-dark);font-weight:600;box-shadow:0 2px 8px #20b8cd1f}.chip-dot{border-radius:50%;width:7px;height:7px;transition:all .2s;display:inline-block}.gemini-dot{background:var(--color-primary);color:var(--color-primary)}.model-chip.active .chip-dot{animation:1.8s ease-in-out infinite pulse-glow;transform:scale(1.1)}@keyframes pulse-glow{0%,to{opacity:.6;box-shadow:0 0}50%{opacity:1;box-shadow:0 0 0 5px}}