.login-screen{height:100vh;width:100vw;display:flex;align-items:center;justify-content:center;position:relative;overflow-y:auto;padding:24px 16px;background:radial-gradient(circle at 10% 20%,#eaf3fd,#d8ebfe 40%,#e0edfc 90%)}.login-screen:before,.login-screen:after{content:"";position:absolute;border-radius:50%;filter:blur(80px);opacity:.55;z-index:0;pointer-events:none;animation:loginBlobFloat 16s ease-in-out infinite alternate}.login-screen:before{width:520px;height:520px;background:radial-gradient(circle,#0176d34d,#1b96ff0f 70%);top:-120px;right:-120px}.login-screen:after{width:580px;height:580px;background:radial-gradient(circle,#032d6040,#0176d314 70%);bottom:-160px;left:-160px;animation-delay:-8s}@keyframes loginBlobFloat{0%{transform:translate(0) scale(1)}50%{transform:translate(35px,-35px) scale(1.06)}to{transform:translate(-25px,20px) scale(.96)}}.login-card{position:relative;z-index:1;width:100%;max-width:440px;padding:38px 34px 34px;border-radius:24px;background:#ffffffe0;backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);border:1px solid rgba(255,255,255,.8);box-shadow:0 20px 50px #032d601f,0 1px 3px #0000000a;text-align:center;animation:loginFadeIn .4s cubic-bezier(.16,1,.3,1);transition:max-width .25s ease}.login-card.signup-mode{max-width:520px;padding:32px 34px 30px}@keyframes loginFadeIn{0%{opacity:0;transform:translateY(16px) scale(.98)}to{opacity:1;transform:translateY(0) scale(1)}}.login-header{margin-bottom:22px}.login-logo{height:40px;width:auto;object-fit:contain;margin-bottom:12px;filter:drop-shadow(0 2px 4px rgba(0,0,0,.06))}.login-title{font-size:1.25rem;font-weight:700;color:#07114c;margin:0 0 6px;letter-spacing:-.2px}.login-subtitle{font-size:.8rem;color:#5b6b82;margin:0;line-height:1.4}.auth-tab-group{display:flex;background:#e8f3fed9;padding:4px;border-radius:12px;margin-bottom:20px;border:1px solid rgba(1,118,211,.15)}.auth-tab-btn{flex:1;padding:9px 12px;border:none;background:transparent;font-size:.84rem;font-weight:600;color:#5b6b82;border-radius:9px;cursor:pointer;transition:all .2s cubic-bezier(.4,0,.2,1)}.auth-tab-btn.active{background:#fff;color:#0176d3;box-shadow:0 2px 8px #0176d31f,0 1px 2px #0000000a}.auth-tab-btn:hover:not(.active){color:#07114c}.auth-alert{display:flex;align-items:center;gap:10px;padding:10px 14px;border-radius:10px;font-size:.82rem;line-height:1.35;margin-bottom:16px;text-align:left;animation:alertPop .2s ease-out}@keyframes alertPop{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}.auth-alert.error{background:#fef2f2;color:#b91c1c;border:1px solid #fecaca}.auth-alert.error svg{color:#dc2626;flex-shrink:0}.auth-alert.success{background:#f0fdf4;color:#15803d;border:1px solid #bbf7d0}.auth-alert.success svg{color:#16a34a;flex-shrink:0}.login-form{display:flex;flex-direction:column;gap:14px;text-align:left}.signup-grid-form{gap:12px}.field-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}@media (max-width: 500px){.field-row{grid-template-columns:1fr}}.login-field{display:flex;flex-direction:column;gap:5px}.field-label-row{display:flex;align-items:center;justify-content:space-between;gap:8px}.login-field label{font-size:.77rem;font-weight:600;color:#374151}.username-status-badge{font-size:.7rem;font-weight:600;line-height:1}.username-status-badge.checking{color:#0176d3}.username-status-badge.available{color:#16a34a}.username-status-badge.taken,.username-status-badge.invalid{color:#dc2626}.match-status-badge{font-size:.7rem;font-weight:600}.match-status-badge.match{color:#16a34a}.match-status-badge.mismatch{color:#dc2626}.input-wrapper{position:relative;display:flex;align-items:center;background:#fff;border:1px solid #cbd5e1;border-radius:10px;transition:all .2s 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ease}.password-toggle-btn:hover{color:#0176d3}.login-submit-btn{margin-top:8px;padding:11px 16px;border:none;border-radius:10px;background:linear-gradient(135deg,#0176d3,#034b8c);color:#fff;font-size:.92rem;font-weight:600;cursor:pointer;box-shadow:0 4px 14px #0176d347;transition:all .2s cubic-bezier(.4,0,.2,1);display:flex;align-items:center;justify-content:center}.login-submit-btn:hover:not(:disabled){opacity:.94;transform:translateY(-1px);box-shadow:0 6px 18px #0176d359}.login-submit-btn:disabled{opacity:.6;cursor:not-allowed;transform:none;box-shadow:none}.btn-loading-content{display:flex;align-items:center;gap:8px}.btn-spinner{animation:authSpin .9s linear infinite}@keyframes authSpin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.auth-footer-prompt{margin-top:10px;font-size:.8rem;color:#64748b;text-align:center}.inline-link-btn{background:transparent;border:none;color:#0176d3;font-weight:600;font-size:inherit;cursor:pointer;padding:0 2px;text-decoration:underline;text-underline-offset:2px;transition:color .15s ease}.inline-link-btn:hover{color:#032d60}.app-container{display:flex;position:relative;height:100vh;width:100vw;background-color:#fff}.app-sidebar{width:280px;min-width:0;flex-shrink:0;background:#e8f3fe;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-right:1px solid rgba(1,118,211,.15);display:flex;flex-direction:column;height:100%;box-shadow:0 4px 20px #0176d314;overflow:hidden;z-index:10;transition:width .22s cubic-bezier(.4,0,.2,1)}.app-sidebar.sidebar-collapsed{width:58px}.sidebar-header-top{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border-bottom:1px solid 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svg{flex-shrink:0}.sidebar-title-with-badge{display:flex;align-items:center;gap:6px}.history-count-badge{font-size:.65rem;font-weight:700;background:var(--brand-primary);color:#fff;padding:1px 6px;border-radius:10px;line-height:1.2}.sidebar-header-right{display:flex;align-items:center;gap:8px}.history-clear-btn{font-size:.65rem;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.4px;padding:2px 6px;border-radius:4px;transition:all .15s ease;cursor:pointer}.history-clear-btn:hover{color:var(--status-danger);background:#ef44441f}.sidebar-section-header.system-status-header .history-clear-btn{color:var(--text-secondary);background:#0000000f}.sidebar-section-header.system-status-header .history-clear-btn:hover{color:var(--status-danger);background:#ef444429}.history-accordion-content{gap:12px;max-height:320px;overflow-y:auto;padding-right:2px}.history-accordion-content::-webkit-scrollbar{width:4px}.history-accordion-content::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:4px}.history-empty{display:flex;align-items:center;gap:8px;padding:10px 12px;color:var(--text-muted);font-size:.78rem;background:var(--bg-tertiary);border-radius:8px;border:1px dashed var(--border-color)}.history-date-group{display:flex;flex-direction:column;gap:4px}.history-date-group{display:flex;flex-direction:column;gap:3px;margin-bottom:8px}.history-date-label{font-size:.65rem;font-weight:700;text-transform:uppercase;letter-spacing:.6px;color:var(--text-muted);padding:3px 6px 3px 4px;border-bottom:1px solid rgba(0,0,0,.06);margin-bottom:3px}.history-items-list{display:flex;flex-direction:column;gap:2px}.history-prompt-item{display:flex;align-items:center;gap:8px;padding:6px 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var(--accent-primary);border-radius:4px;background:var(--bg-secondary);color:var(--text-primary);outline:none;font-family:inherit}.history-item-actions{display:flex;align-items:center;gap:4px;flex-shrink:0;margin-left:auto}.history-item-pin-icon{color:var(--accent-primary);flex-shrink:0}.history-item-more-btn{display:none;background:transparent;border:none;color:var(--text-muted);font-size:.7rem;letter-spacing:1px;padding:2px 6px;border-radius:4px;cursor:pointer;line-height:1;transition:all .15s ease;font-weight:700}.history-prompt-item:hover .history-item-more-btn,.history-prompt-item.active .history-item-more-btn{display:block}.history-item-more-btn:hover{color:var(--accent-primary);background:#0176d31f}.chat-context-menu{position:fixed;z-index:9999;background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:8px;box-shadow:0 10px 25px -5px #0000002e,0 8px 10px -6px #0000001a;padding:6px;min-width:190px;display:flex;flex-direction:column;gap:2px;animation:contextMenuFadeIn .15s ease-out}@keyframes contextMenuFadeIn{0%{opacity:0;transform:scale(.96) translateY(-4px)}to{opacity:1;transform:scale(1) translateY(0)}}.context-menu-item{display:flex;align-items:center;gap:10px;padding:8px 12px;border:none;background:transparent;color:var(--text-primary);font-size:.84rem;font-weight:500;border-radius:6px;cursor:pointer;width:100%;text-align:left;transition:all .15s ease;font-family:inherit}.context-menu-item svg{flex-shrink:0;color:var(--text-muted);transition:color .15s ease}.context-menu-item:hover{background:var(--bg-tertiary);color:var(--accent-primary)}.context-menu-item:hover svg{color:var(--accent-primary)}.context-menu-item.delete{color:var(--status-danger)}.context-menu-item.delete svg{color:var(--status-danger)}.context-menu-item.delete:hover{background:#ea001e14;color:var(--status-danger)}.context-menu-item.delete:hover svg{color:var(--status-danger)}.context-menu-divider{height:1px;background:var(--border-color);margin:4px 0}.global-toast-notification{position:fixed;bottom:24px;right:24px;background:#18202a;color:#fff;padding:10px 18px;border-radius:8px;font-size:.85rem;font-weight:500;box-shadow:0 10px 25px #00000040;z-index:10000;animation:toastFadeIn .2s ease-out;display:flex;align-items:center;gap:8px;border:1px solid rgba(255,255,255,.1)}.history-count-badge.grayout{background:var(--text-muted);opacity:.7}.history-loading-placeholder{display:flex;flex-direction:column;gap:4px;padding:2px 0}.history-prompt-item.grayout,.history-prompt-item.disabled{opacity:.55;pointer-events:none;cursor:not-allowed!important;-webkit-user-select:none;user-select:none}.history-prompt-text.grayout-text{color:var(--text-muted);font-style:italic}.history-spinner-icon{animation:historySpin 1s linear infinite;color:var(--brand-primary);flex-shrink:0}@keyframes historySpin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.chat-context-menu{position:fixed;z-index:10000;background:#fff;border-radius:12px;border:1px solid rgba(0,0,0,.08);box-shadow:0 10px 30px #0000001f,0 2px 8px #0000000a;padding:6px;min-width:175px;display:flex;flex-direction:column;gap:2px;animation:contextMenuPop .15s cubic-bezier(.4,0,.2,1)}@keyframes contextMenuPop{0%{opacity:0;transform:scale(.94) translateY(-4px)}to{opacity:1;transform:scale(1) translateY(0)}}.context-menu-item{display:flex;align-items:center;gap:10px;width:100%;padding:8px 10px;border:none;background:transparent;color:#374151;font-size:.82rem;font-weight:500;border-radius:8px;cursor:pointer;text-align:left;transition:all .15s ease}.context-menu-item:hover{background:#f3f4f6;color:#111827}.context-menu-item.delete{color:#ea001e}.context-menu-item.delete:hover{background:#ea001e14;color:#ea001e}.context-menu-divider{height:1px;background:#00000012;margin:4px 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