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var(--border);border-radius:var(--radius-sm);box-shadow:var(--shadow-lg);z-index:1000;animation:scale-in .15s var(--ease);overflow:hidden}.dropdown-search{padding:8px;border-bottom:1px solid var(--border-subtle)}.dropdown-search-input{width:100%;padding:8px 12px;border:1px solid var(--border);border-radius:var(--radius-xs);font-size:.8125rem;font-family:inherit;color:var(--text);background:var(--bg2);outline:none}.dropdown-search-input:focus{border-color:var(--accent)}.dropdown-search-input::placeholder{color:var(--text-ph)}.dropdown-list{max-height:200px;overflow-y:auto;padding:4px}.dropdown-item{display:flex;align-items:center;justify-content:space-between;padding:8px 12px;border-radius:var(--radius-xs);font-size:.8125rem;color:var(--text-2);cursor:pointer;transition:background .1s}.dropdown-item:hover{background:var(--surface-raised);color:var(--text)}.dropdown-item-selected{background:var(--accent-subtle);color:var(--accent);font-weight:500}.dropdown-item-selected:hover{background:var(--accent-subtle)}.dropdown-empty{padding:16px;text-align:center;color:var(--text-ph);font-size:.8125rem}.btn-primary{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 24px;background:var(--accent);color:#fff;border:none;border-radius:var(--radius-sm);font-size:.875rem;font-weight:500;font-family:inherit;cursor:pointer;white-space:nowrap;transition:background var(--dur),box-shadow var(--dur)}.btn-primary:hover:not(:disabled){background:var(--accent-hover);box-shadow:var(--shadow-sm)}.btn-primary:disabled{opacity:.38;cursor:not-allowed}.btn-primary-lg{padding:12px 24px;width:100%}.btn-spinner{width:16px;height:16px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .6s linear infinite}.error-boundary{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;gap:12px;padding:24px;background:var(--bg);color:var(--text)}.error-boundary h2{color:var(--red);font-size:1rem;font-weight:500}.error-boundary p{color:var(--text-2);max-width:360px;text-align:center}.error-boundary button{padding:10px 24px;background:var(--accent);color:#fff;border:none;border-radius:var(--radius-sm);font-weight:500;font-family:inherit;cursor:pointer}@keyframes pulse{0%,to{opacity:1}50%{opacity:.3}}@keyframes slide{0%{transform:translate(-100%)}50%{transform:translate(250%)}to{transform:translate(-100%)}}@keyframes spin{to{transform:rotate(360deg)}}@keyframes fade-up{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}@keyframes scale-in{0%{opacity:0;transform:scale(.97)}to{opacity:1;transform:scale(1)}}.follow-up{flex-shrink:0;padding:16px 0 20px;animation:fade-up .3s var(--ease)}.follow-up-inner{display:flex;align-items:center;gap:0;border:1px solid var(--border);border-radius:24px;background:var(--bg2);padding:4px 4px 4px 18px;transition:border-color var(--dur),box-shadow var(--dur)}.follow-up-inner:focus-within{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-glow)}.follow-up-input{flex:1;min-width:0;padding:10px 0;border:none;background:transparent;font-size:.875rem;font-family:inherit;color:var(--text);outline:none}.follow-up-input::placeholder{color:var(--text-ph)}.follow-up-input:disabled{opacity:.5;cursor:not-allowed}.follow-up-btn{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:50%;border:none;background:var(--accent);color:#fff;cursor:pointer;flex-shrink:0;transition:background var(--dur),opacity var(--dur)}.follow-up-btn:hover:not(:disabled){background:var(--accent-hover)}.follow-up-btn:disabled{opacity:.3;cursor:not-allowed}.chat-window::-webkit-scrollbar,.dropdown-list::-webkit-scrollbar{width:4px}.chat-window::-webkit-scrollbar-track,.dropdown-list::-webkit-scrollbar-track{background:transparent}.chat-window::-webkit-scrollbar-thumb,.dropdown-list::-webkit-scrollbar-thumb{background:var(--border);border-radius:2px}@media(max-width:640px){.landing-title{font-size:1.125rem}.msg-user{max-width:85%}.topbar{padding:0 12px}.chat-layout{padding:0 16px}}