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strong{color:#f5f5f7}[data-theme=dark] .success-note{color:#86868b}.profile-picker-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px;position:relative;overflow:hidden;background:linear-gradient(135deg,#1a1a2e,#16213e)}.profile-picker-container{position:relative;z-index:1;width:100%;max-width:900px}.profile-picker-header{text-align:center;margin-bottom:48px}.profile-picker-title{font-size:36px;font-weight:700;color:#fff;margin:0 0 12px}.profile-picker-subtitle{font-size:18px;color:#ffffffb3;margin:0}.profile-cards-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:24px;margin-bottom:32px}.profile-card{background:#ffffff1a;border:2px solid rgba(255,255,255,.2);border-radius:16px;padding:24px;cursor:pointer;transition:all .3s ease;text-align:left;position:relative;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.profile-card:hover{transform:translateY(-4px);box-shadow:0 8px 24px #0000004d;border-color:#fff6}.profile-card:active{transform:translateY(-2px)}.profile-card-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:16px;position:relative}.profile-theme-bubble{position:absolute;top:8px;left:50%;transform:translate(-50%);width:48px;height:28px;opacity:.9;z-index:1}.profile-avatar{width:64px;height:64px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:32px;box-shadow:0 4px 12px #0003}.pinned-badge{font-size:20px;opacity:.8}.profile-card-content{display:flex;flex-direction:column;gap:8px}.profile-name{font-size:20px;font-weight:600;color:#fff;margin:0}.profile-meta{display:flex;flex-direction:column;gap:4px;font-size:14px;color:#fffc}.profile-role{text-transform:capitalize;font-weight:500}.profile-age{color:#fff9}.profile-theme-badge{display:inline-block;background:#fff3;color:#fff;padding:4px 12px;border-radius:12px;font-size:12px;font-weight:500;margin-top:8px;align-self:flex-start}.profile-picker-footer{text-align:center;padding-top:24px;border-top:1px solid rgba(255,255,255,.1)}.profile-picker-hint{font-size:14px;color:#fff9;margin:0}@media (max-width: 768px){.profile-picker-title{font-size:28px}.profile-picker-subtitle{font-size:16px}.profile-cards-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:16px}.profile-card{padding:20px}.profile-avatar{width:56px;height:56px;font-size:28px}.profile-name{font-size:18px}}.impersonation-banner{position:fixed;top:0;left:0;right:0;background:#ff6b35;color:#fff;padding:.75rem 1rem;z-index:9999;box-shadow:0 2px 8px #0003;border-bottom:2px solid #ff8c5a}.impersonation-banner-content{max-width:1200px;margin:0 auto;display:flex;align-items:center;justify-content:center;gap:1rem;flex-wrap:wrap}.impersonation-banner-icon{font-size:1.25rem;flex-shrink:0}.impersonation-banner-text{font-size:.95rem;font-weight:500;flex:1;text-align:center}.impersonation-banner-button{background:#fff3;border:1px solid rgba(255,255,255,.3);color:#fff;padding:.5rem 1rem;border-radius:6px;cursor:pointer;font-size:.875rem;font-weight:500;transition:all .2s;flex-shrink:0}.impersonation-banner-button:hover{background:#ffffff4d;border-color:#ffffff80}@media (max-width: 768px){.impersonation-banner-content{flex-direction:column;gap:.5rem}.impersonation-banner-text{font-size:.875rem}.impersonation-banner-button{width:100%;max-width:200px}}*{box-sizing:border-box;margin:0;padding:0}:root[data-theme=dark]{--bg-primary: #212121;--bg-secondary: #2f2f2f;--bg-tertiary: #171717;--border-color: #3e3e3e;--border-hover: #565869;--text-primary: #ececec;--text-secondary: #8e8ea0;--accent: #19c37d;--accent-hover: #1a9d6a}:root[data-theme=light]{--bg-primary: #ffffff;--bg-secondary: #f5f5f5;--bg-tertiary: #eaeaea;--border-color: #d0d0d0;--border-hover: #a0a0a0;--text-primary: #1a1a1a;--text-secondary: #666666;--accent: #2563eb;--accent-hover: #1d4ed8}body{margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:var(--bg-primary);color:var(--text-primary);transition:background-color .3s,color .3s}:root[data-theme=light] body{background-color:var(--bg-primary);color:var(--text-primary)}:root[data-theme=light] .chat-container{background:radial-gradient(120% 120% at 20% 0%,#3b82f61f,#dbe9ff00 45%),radial-gradient(140% 140% at 80% 0%,#3b82f61f,#dbe9ff00 52%),linear-gradient(180deg,#f0f5fff5,#e8f0fff0 40%,#e0ecfff7)}:root[data-theme=light] .conversation-sidebar{background:linear-gradient(180deg,#f5f7fff2,#ebf0fffa);border-right:1px solid rgba(203,213,225,.7);box-shadow:12px 0 28px #94a3b840}:root[data-theme=light] .sidebar-rail{background:#f0f5fff2;border-right:1px solid rgba(203,213,225,.7)}:root[data-theme=light] .sidebar-rail-btn{background:#e2e8f0e6;border:1px solid rgba(203,213,225,.8);color:#1f2937}:root[data-theme=light] .sidebar-rail-btn:hover,:root[data-theme=light] .sidebar-rail-btn.is-active{background:#94c5ff66;border-color:#3b82f666;color:#1e3a8a}:root[data-theme=light] .chat-composer-shell{background:transparent;border:none;box-shadow:none}:root[data-theme=light] .chat-text-bubble{background:transparent;border:1px solid rgba(203,213,225,.6)}:root[data-theme=light] .chat-input-toolbar{background:transparent;border:none;box-shadow:none}:root[data-theme=light] .chat-input-toolbar:before{display:none}:root[data-theme=light] .composer-icon-button,:root[data-theme=light] .composer-send{box-shadow:none}:root[data-theme=light] .chat-input-disclaimer{color:#334155}:root[data-theme=light] .welcome-screen:before{background:radial-gradient(60% 70% at 20% 0%,#3b82f62e,#3b82f600 65%),radial-gradient(55% 65% at 80% 0%,#6366f129,#6366f100 60%)}:root[data-theme=light] .welcome-title,:root[data-theme=light] .welcome-tagline,:root[data-theme=light] .welcome-greeting{color:#1f2937}:root[data-theme=light] .conversation-item{background:#e0e7ff99;border-color:#bfdbfe99;color:#1f2937}:root[data-theme=light] .conversation-item:hover{background:#94c5ff73;border-color:#3b82f673}:root[data-theme=light] .recent-section .conversation-item{background:transparent;color:#1f2937}.App{min-height:100vh;display:flex;overflow:hidden}.main-content{display:flex;flex:1;overflow:hidden}.chat-layout{display:flex;flex:1;height:100vh;overflow:hidden;position:relative}.mobile-sidebar-toggle{position:absolute;top:1rem;left:1rem;z-index:10;width:42px;height:42px;border-radius:12px;border:1px solid rgba(148,163,184,.22);background:#0f172aeb;color:#e2e8f0e6;display:inline-flex;align-items:center;justify-content:center;box-shadow:0 12px 24px #0f172a59;cursor:pointer;transition:transform .2s ease,border-color .2s ease,background .2s ease}.mobile-sidebar-toggle svg{width:18px;height:18px}.mobile-sidebar-toggle:hover{transform:translateY(-2px);border-color:#3b82f673;background:#2563eb59;color:#fff}@media (min-width: 768px){.mobile-sidebar-toggle{display:none}}