.loader-screen{min-height:100dvh;display:grid;place-items:center;background:var(--bg-app)}.loader{--loader-size: 48px;width:var(--loader-size);height:var(--loader-size);display:inline-block;position:relative}.loader:after,.loader:before{content:"";box-sizing:border-box;width:var(--loader-size);height:var(--loader-size);border-radius:50%;background:#fff;position:absolute;left:0;top:0;animation:animloader 2s linear infinite}.loader:after{animation-delay:1s}.loader-sm{--loader-size: 18px;padding-left:100px}@keyframes animloader{0%{transform:scale(0);opacity:1}to{transform:scale(1);opacity:0}}.modal-backdrop{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#000000b3;display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn .3s ease-out}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.modal-content{background-color:#1f1f1f;border-radius:8px;max-width:600px;width:90%;max-height:90vh;overflow-y:auto;box-shadow:0 10px 40px #00000080;animation:slideUp .3s ease-out}@keyframes slideUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:24px 28px;border-bottom:1px solid rgba(255,255,255,.08)}.modal-header h2{margin:0;font-size:20px;font-weight:500;color:#e8e4de}.modal-close{background:none;border:none;font-size:32px;color:#8a8680;cursor:pointer;padding:0;width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:4px;transition:background-color .2s,color .2s}.modal-close:hover{background-color:#ffffff0d;color:#e8e4de}.modal-body{padding:24px 28px}.settings-description{margin:0 0 20px;color:#8a8680;font-size:14px}.settings-modal-form{display:grid;gap:10px}.settings-modal-form label{margin-top:8px;font-weight:500;font-size:14px;color:#e8e4de}.settings-modal-form input{padding:10px 12px;border:1px solid rgba(255,255,255,.08);border-radius:6px;background-color:#141414;color:#e8e4de;font-size:14px;transition:border-color .2s}.settings-modal-form input:focus{outline:none;border-color:#4da8d4}.settings-modal-form input::placeholder{color:#8a8680}.settings-modal-actions{display:flex;gap:12px;margin-top:20px;justify-content:flex-end}.settings-modal-actions button{padding:10px 20px;border:none;border-radius:6px;font-size:14px;font-weight:500;cursor:pointer;transition:background-color .2s,opacity .2s}.settings-modal-actions button:disabled{opacity:.5;cursor:not-allowed}.cancel-button{background-color:transparent;border:1px solid rgba(255,255,255,.08);color:#e8e4de}.cancel-button:hover:not(:disabled){background-color:#ffffff0d}.save-button{background-color:#4da8d4;color:#141414}.save-button:hover:not(:disabled){background-color:#5bb8e4}.delete-account-button{background-color:#ff6b6b29;color:#ff9b9b;border:1px solid rgba(255,107,107,.4);margin-right:auto}.delete-account-button:hover:not(:disabled){background-color:#ff6b6b3d}.error-text{color:#ff6b6b;font-size:14px;margin:8px 0 0}.success-text{color:#7cd9a5;font-size:14px;margin:8px 0 0}:root{--accent: #4da8d4;--accent-soft: rgba(77, 168, 212, .16);--bg-app: #141414;--bg-sidebar: #1a1a1a;--bg-main: #141414;--bg-card: #1f1f1f;--bg-input: #252525;--bg-hover: #242424;--bg-active: #2a2a2a;--bg-bubble-ai: #232323;--bubble-user-bg: #2d2d2d;--bubble-user-text: #e8e4de;--border: rgba(255, 255, 255, .08);--border-focus: rgba(77, 168, 212, .5);--text-primary: #e8e4de;--text-secondary: #8a8680;--text-muted: #67625d;--danger: #ff6b6b;--font-body: "DM Sans", sans-serif;--font-mono: "DM Mono", monospace;--font-bump: 4px}*,*:before,*:after{box-sizing:border-box}html,body,#root{margin:0;height:100%;min-height:100dvh;overflow:hidden;background:var(--bg-app);color:var(--text-primary);font-family:var(--font-body);font-size:calc(14px + var(--font-bump))}button,input,textarea{font:inherit}:focus-visible{outline:2px solid var(--accent);outline-offset:2px}::-webkit-scrollbar{width:4px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#2f2f2f;border-radius:4px}.auth-page{min-height:100%;display:grid;place-items:center;padding:1.5rem}.auth-card{width:min(460px,100%);background:var(--bg-card);border:1px solid var(--border);border-radius:14px;padding:1.5rem}.auth-card p{margin-top:.4rem;color:var(--text-secondary)}.auth-form{display:grid;gap:.45rem}.auth-form input{background:var(--bg-input);border:1px solid var(--border);border-radius:8px;color:var(--text-primary);padding:.62rem .75rem}.auth-form button{margin-top:.35rem;border:1px solid rgba(77,168,212,.34);background:var(--accent-soft);color:var(--accent);border-radius:8px;padding:.62rem .8rem;cursor:pointer}.auth-signup-link{margin-top:.45rem}.auth-alt-link{margin:.8rem 0 0;color:var(--text-secondary)}.auth-alt-link a{color:var(--accent);text-decoration:none}.app-layout{display:grid;grid-template-columns:260px 1fr;height:100dvh;max-height:100dvh;overflow:hidden}.sidebar-shell{min-width:0;height:100%}.mobile-nav-toggle{display:none}.sidebar{background:var(--bg-sidebar);border-right:1px solid rgba(255,255,255,.06);display:flex;flex-direction:column;height:100%;padding:14px 12px;gap:6px;min-height:0;overflow:auto}.sidebar-brand{display:flex;align-items:center;justify-content:flex-start;border-bottom:1px solid rgba(255,255,255,.06);padding:4px 6px 12px;margin-bottom:4px}.sidebar-brand-logo{width:142px;height:auto;display:block;object-fit:contain}.sidebar-section-label{font-size:14px;letter-spacing:.08em;text-transform:uppercase;font-weight:600;color:#4f4a46;padding:7px 8px 2px}.new-chat-btn{width:100%;border:1px solid rgba(77,168,212,.28);background:var(--accent-soft);color:var(--accent);border-radius:7px;padding:7px 10px;cursor:pointer;text-align:left;font-weight:600}.new-chat-btn:hover{background:#4da8d43d}.chat-history-btn{width:100%;border:1px solid var(--border);background:transparent;color:var(--text-secondary);border-radius:7px;padding:7px 10px;cursor:pointer;text-align:left;margin-top:2px}.chat-history-btn:hover{background:var(--bg-hover);color:var(--text-primary)}.conversation-list{display:flex;flex-direction:column;flex:1;gap:.35rem;min-height:0;overflow:auto}.conversation-item{border-radius:7px;display:flex;align-items:center;flex-wrap:nowrap;gap:4px;color:#777;transition:background .18s ease,color .18s ease;padding:1px 2px}.conversation-item:hover{background:#ffffff0d;color:#aaa}.conversation-item.active{background:#ffffff17;color:#ded9d2}.conversation-select-btn{flex:1;border:none;background:transparent;color:inherit;text-align:left;cursor:pointer;padding:7px 9px;font-size:16.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.conversation-row-menu-wrap{position:relative;display:inline-flex;align-items:center}.conversation-inline-rename{width:100%;display:flex;align-items:center;gap:8px;padding:4px}.conversation-inline-action{border:1px solid rgba(77,168,212,.35);background:#4da8d429;color:var(--accent);border-radius:8px;padding:6px 10px;cursor:pointer}.conversation-inline-action.danger{border-color:#ff6b6b73;color:#ffb3b3;background:#ff6b6b1f}.rename-btn{border:none;background:transparent;color:#7b756f;cursor:pointer;font-size:17px;line-height:1;padding:5px 7px;border-radius:6px}.rename-btn:hover{color:#c8c2ba;background:#ffffff14}.delete-btn{border:none;background:transparent;color:#7b756f;cursor:pointer;font-size:16px;line-height:1;padding:5px 6px;border-radius:6px}.delete-btn:hover{color:#ff8f8f;background:#ff6b6b1f}.delete-confirm{width:100%;display:flex;align-items:center;gap:6px;padding:2px 9px 8px;color:#b7b1aa}.conversation-rename-input{width:100%;background:var(--bg-input);color:var(--text-primary);border:1px solid var(--border-focus);border-radius:7px;padding:6px 8px;font-size:14.5px}.sidebar-spacer{flex:1}.sidebar-user{color:#6e6964;font-size:17.5px;padding:0 6px;line-height:1.2;flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sidebar-user-row{position:relative;display:flex;align-items:center;justify-content:space-between;gap:8px;width:100%;min-height:36px;margin-bottom:8px}.settings-icon-btn{border:1px solid var(--border);background:#ffffff08;color:var(--text-secondary);border-radius:8px;width:34px;height:34px;font-size:24px;line-height:1;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;padding:0}.settings-icon-btn:hover{color:var(--text-primary);background:var(--bg-hover)}.settings-popover{position:absolute;right:0;bottom:calc(100% + 6px);z-index:20;min-width:220px;border:1px solid var(--border);background:var(--bg-card);border-radius:9px;display:grid;overflow:hidden}.settings-popover-item{border:none;background:transparent;color:var(--text-secondary);text-align:left;padding:10px 12px;cursor:pointer}.settings-popover-item:hover{color:var(--text-primary);background:var(--bg-hover)}.logout-btn{border:1px solid var(--border);background:transparent;color:var(--text-secondary);border-radius:8px;padding:.52rem;cursor:pointer}.logout-btn:hover{background:var(--bg-hover);color:var(--text-primary)}.chat-main{background:var(--bg-main);display:flex;flex-direction:column;min-width:0;min-height:0;height:100%;overflow:hidden;padding:50px;gap:10px}.chat-header{padding:14px 28px;border-bottom:1px solid var(--border);display:flex;flex-direction:column;gap:2px}.chat-header h1{margin:0;font-size:19px;font-weight:600}.chat-header p{margin:0;font-size:16px;color:var(--text-secondary)}.error-banner{margin:0 28px;border:1px solid rgba(255,107,107,.45);background:#ff6b6b1a;color:#ffb1b1;border-radius:8px;padding:8px 10px}.loading-text{margin:15px 28px;color:var(--text-secondary)}.chat-window{flex:1;min-height:0;overflow-y:auto;overflow-x:hidden;overscroll-behavior:contain;padding:22px 0;display:flex;flex-direction:column;gap:12px}.message-row{display:flex;padding:6px 28px}.message-row.user{justify-content:flex-end}.message-row.assistant{justify-content:flex-start}.message-bubble{line-height:1.65}.message-bubble.user{max-width:800px;background:var(--bubble-user-bg);color:var(--bubble-user-text);border-radius:25px 25px 4px;padding:10px 15px;font-size:18px}.message-bubble.user p{margin:0}.message-bubble.assistant{width:min(780px,100%);background:transparent;border:none;border-radius:4px 25px 25px;padding:16px 20px;font-size:18px;display:flex;flex-direction:column;gap:8px}.message-tools{display:flex;justify-content:flex-end;gap:6px;margin-top:8px}.message-tool-btn{border:1px solid var(--border);background:#ffffff08;color:var(--text-secondary);border-radius:7px;padding:3px 8px;cursor:pointer}.message-tool-btn:hover{color:var(--text-primary);background:#ffffff14}.message-bubble.assistant h1,.message-bubble.assistant h2,.message-bubble.assistant h3,.message-bubble.assistant p{margin:0}.streaming-text{white-space:pre-wrap}.message-bubble.assistant ul,.message-bubble.assistant ol{margin:0;padding-left:20px}.message-bubble.assistant code{font-family:var(--font-mono);font-size:16.5px;background:var(--bg-input);border:1px solid var(--border);border-radius:4px;padding:1px 5px}.message-bubble.assistant pre{background:var(--bg-input);border:1px solid var(--border);border-radius:8px;padding:10px;overflow-x:auto}.message-bubble.assistant pre code{border:none;background:transparent;padding:0}.message-sources{margin-top:12px;padding-top:12px;border-top:1px solid var(--border)}.sources-label{font-size:13px;color:var(--text-secondary);font-weight:500;margin-bottom:6px}.sources-list{display:flex;flex-wrap:wrap;gap:6px}.source-tag{font-size:12px;padding:3px 8px;background:var(--bg-input);border:1px solid var(--border);border-radius:4px;color:var(--text-secondary)}.typing-chip{display:inline-flex;align-items:center;justify-content:center;background:#ffffff0d;border:1px solid var(--border);border-radius:999px;padding:6px 10px;max-width:fit-content}.thinking-chip{padding:7px 12px}.typing-loader{display:inline-block}.thinking-text{font-style:italic;color:var(--text-secondary);display:inline-block;background:linear-gradient(90deg,#8c8c8c66,#f0f0f0d9 45%,#8c8c8c66);background-size:200% auto;-webkit-background-clip:text;background-clip:text;color:transparent;animation:thinking-glide 1.6s linear infinite}@keyframes thinking-glide{0%{background-position:200% 0}to{background-position:-200% 0}}.chat-input-container{border-top:1px solid var(--border);padding:14px 28px 20px;display:flex;flex-direction:column;align-items:center;gap:8px}.chat-input-container>*{width:100%;max-width:760px}.kb-badge{display:inline-block;border:1px solid #4DA8D44D;background:#4da8d41a;color:var(--accent);border-radius:999px;font-size:15px;padding:4px 10px;width:fit-content}.chat-input-row{display:flex;align-items:center;gap:10px;background:var(--bg-input);border:1px solid var(--border);border-radius:32px;padding:8px 10px 8px 14px}.chat-input-row:focus-within{border-color:var(--border-focus);box-shadow:0 0 0 3px #4da8d414}.chat-input-field{flex:1;border:none;background:transparent;color:var(--text-primary);outline:none;height:40px;line-height:40px;font-size:18px;font-family:DM Sans,sans-serif;padding:0}.chat-input-field::placeholder{color:var(--text-muted)}.chat-input-row button{width:40px;height:40px;border-radius:20px;border:none;background:var(--accent);color:#fff;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;padding:0;flex-shrink:0}.chat-input-row button svg{width:20px;height:20px}.chat-input-row button:disabled{opacity:.5;cursor:not-allowed}.error-text{color:var(--danger)}.success-text{color:#7cd9a5}.page-placeholder{padding:28px}.page-placeholder h1{margin:0;font-size:19px}.page-placeholder p{margin-top:8px;color:var(--text-secondary)}.settings-form{display:grid;gap:10px;max-width:520px}.settings-form label{color:#b7b1aa}.settings-form input{background:var(--bg-input);border:1px solid var(--border);color:var(--text-primary);border-radius:8px;padding:10px 12px}.settings-form button{width:fit-content;border:1px solid rgba(77,168,212,.35);background:#4da8d429;color:var(--accent);border-radius:8px;padding:8px 12px;cursor:pointer}.settings-single-page{padding:22px 28px}.settings-single-page h1{margin:0;font-size:20px}.settings-single-page p{margin:6px 0 14px;color:var(--text-secondary)}.toast{position:fixed;right:24px;bottom:24px;z-index:50;display:flex;align-items:center;gap:10px;background:#1f1f1f;border:1px solid var(--border);color:var(--text-primary);border-radius:10px;padding:10px 12px;box-shadow:0 10px 30px #00000059}.toast-action,.toast-close{border:1px solid var(--border);background:#ffffff0d;color:var(--text-primary);border-radius:7px;cursor:pointer}.toast-action{padding:4px 9px}.toast-close{width:26px;height:26px}.home-page{min-height:100dvh;display:grid;grid-template-rows:auto 1fr auto;padding:20px 22px 24px;background:transparent}.home-nav{display:flex;align-items:center;justify-content:space-between;gap:16px}.home-brand-logo{width:132px;height:auto;display:block;object-fit:contain}.home-nav-links{display:flex;align-items:center;justify-content:center;gap:10px}.home-nav-links a,.home-nav-links button{text-decoration:none;border:1px solid var(--border);background:#ffffff08;color:var(--text-secondary);border-radius:999px;padding:6px 12px;cursor:pointer}.info-modal-content{display:grid;gap:10px}.info-modal-intro{margin:0 0 2px;color:var(--text-secondary)}.accordion-list{display:grid;gap:8px}.accordion-item{border:1px solid var(--border);border-radius:8px;background:#ffffff08;padding:9px 11px}.accordion-item summary{cursor:pointer;font-weight:500;color:var(--text-primary)}.accordion-item p{margin:8px 0 0;color:var(--text-secondary)}.info-modal-content label{margin-top:4px;color:var(--text-secondary)}.info-modal-content input,.info-modal-content textarea{background:var(--bg-input);border:1px solid var(--border);border-radius:8px;color:var(--text-primary);padding:10px 12px;resize:vertical}.info-mailto{display:inline-flex;width:fit-content;margin-top:6px;text-decoration:none}.home-stage{display:grid;grid-template-columns:minmax(340px,560px) minmax(340px,560px);gap:42px;align-items:center;justify-items:center;width:min(1320px,100%);margin:0 auto}.home-hero{width:100%;max-width:520px;display:flex;flex-direction:column;align-items:center;text-align:center}.home-hero h1{margin:0 0 10px;font-size:clamp(40px,6vw,66px);line-height:1.04;letter-spacing:-.03em}.home-hero p{margin:0;color:var(--text-secondary);max-width:56ch}.home-visual{position:relative;width:min(560px,100%);aspect-ratio:1 / 1;min-height:0;overflow:hidden}.home-footer{display:grid;justify-items:center;gap:8px}.home-powered-by{display:inline-flex;justify-self:center;align-items:center;gap:8px;font-size:11px;color:#e2e2e26b;letter-spacing:.06em;text-transform:uppercase}.home-powered-by-logo{width:72px;height:auto;object-fit:contain;opacity:.4}.feature-card-cta{border:.5px solid rgba(47,164,215,.5);background:#2fa4d71a;color:#2fa4d7}@media (hover: hover) and (pointer: fine){.feature-card-cta:hover{background:#2fa4d733;color:#8dd6f4;border-color:#2fa4d7bf}}.primary-cta,.secondary-cta{border-radius:9px;padding:10px 14px;cursor:pointer}.primary-cta{border:1px solid rgba(77,168,212,.35);background:#4da8d429;color:var(--accent)}.secondary-cta{border:1px solid var(--border);background:#ffffff0d;color:var(--text-primary)}.billing-page{padding:24px 28px}.subscribe-page{min-height:100dvh;display:grid;place-items:center;padding:24px}.subscribe-shell{width:min(980px,100%);display:grid;gap:12px}.subscribe-shell h1{margin:0}.subscribe-shell p{margin:0;color:var(--text-secondary)}.subscribe-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.subscribe-card{border:1px solid var(--border);border-radius:12px;padding:16px;display:grid;gap:10px;background:var(--bg-card)}.subscribe-card-dev{border-color:#4da8d459}.billing-page h1{margin:0 0 14px}.billing-summary{display:grid;grid-template-columns:1fr;gap:10px;margin-bottom:18px}.billing-summary div{border:1px solid var(--border);border-radius:10px;padding:12px;display:grid;gap:4px}.billing-summary span{color:var(--text-secondary)}.billing-actions{display:grid;gap:10px}.status-light-row{display:inline-flex;align-items:center;gap:8px}.status-light-dot{width:10px;height:10px;border-radius:999px;display:inline-block}.status-light-dot.green{background:#3ccb79;box-shadow:0 0 8px #3ccb798c}.status-light-dot.yellow{background:#f4c145;box-shadow:0 0 8px #f4c1458c}.status-light-dot.red{background:#ff6b6b;box-shadow:0 0 8px #ff6b6b8c}.status-light-label{font-size:15px;color:var(--text-secondary)}.app-home{min-height:0;height:100%;display:grid;align-content:center;justify-items:center;gap:22px;padding:24px}.app-home-label{margin:0;font-size:13px;color:#2fa4d799;letter-spacing:.16em;text-transform:uppercase;text-align:center}.app-home h1{margin:0;font-size:34px;font-weight:600;letter-spacing:.01em;text-align:center}.app-home-grid{width:min(760px,100%);display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.app-home-card{border:1px solid rgba(255,255,255,.07);border-radius:10px;background:#ffffff0a;color:var(--text-primary);padding:22px 24px 28px;min-height:170px;display:grid;align-content:start;gap:10px;text-align:left;cursor:pointer;position:relative;transition:border-color .25s,background .25s}.app-home-card.active:hover{border-color:#e76f2e66;background:#e76f2e0d}.app-home-card.coming-soon:hover{border-color:#2fa4d759;background:#2fa4d70a}.app-home-badge{display:inline-block;width:fit-content;font-size:12px;font-weight:600;letter-spacing:.07em;padding:4px 10px;border-radius:4px;margin-bottom:10px;text-transform:uppercase}.app-home-badge-orange{background:#e76f2e26;color:#e76f2e;border:1px solid rgba(231,111,46,.28)}.app-home-badge-blue{background:#2fa4d71a;color:#2fa4d7;border:1px solid rgba(47,164,215,.22)}.app-home-card small{font-size:15px;color:#ffffff59}.app-home-status-dot{position:absolute;bottom:16px;right:18px;width:11px;height:11px;border-radius:50%}.app-home-dot-green{background:#3ecf6e;box-shadow:0 0 6px #3ecf6eb3}.app-home-dot-gray{background:#ffffff2e}.chats-manager-page{display:flex;flex-direction:column;min-height:0}.chats-manager-list{margin:15px 20px 0;border:1px solid var(--border);border-radius:12px;overflow:visible}.chats-manager-item{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:10px 12px;border-bottom:1px solid rgba(255,255,255,.05);overflow:visible}.chats-manager-item:last-child{border-bottom:none}.chats-manager-open{border:none;background:transparent;color:var(--text-primary);cursor:pointer;text-align:left}.chats-manager-menu-wrap{position:relative}.chats-manager-menu-trigger{border:1px solid var(--border);background:#ffffff08;color:var(--text-secondary);border-radius:7px;width:32px;height:28px;cursor:pointer}.chats-manager-menu{position:absolute;right:0;top:calc(100% + 4px);min-width:120px;border:1px solid var(--border);background:var(--bg-card);border-radius:8px;overflow:hidden;z-index:40;box-shadow:0 8px 24px #00000073}.chats-manager-menu button{border:none;background:transparent;color:var(--text-secondary);width:100%;text-align:left;padding:8px 10px;cursor:pointer}.chats-manager-menu button:hover{color:var(--text-primary);background:var(--bg-hover)}.chats-manager-menu button.danger:hover{color:#ffb3b3;background:#ff6b6b24}.chats-manager-rename{width:100%;display:flex;align-items:center;gap:8px}.chats-manager-rename input{flex:1;background:var(--bg-input);border:1px solid var(--border);color:var(--text-primary);border-radius:8px;padding:8px 10px}.chats-manager-rename button{border:1px solid rgba(77,168,212,.35);background:#4da8d429;color:var(--accent);border-radius:8px;padding:8px 10px;cursor:pointer}@media (max-width: 960px){.home-page{padding-top:14px;overflow-y:auto}.home-nav{flex-direction:column;align-items:center;justify-content:center;gap:14px;margin-bottom:18px}.home-nav-links{flex-wrap:wrap;gap:8px}.home-nav-links a,.home-nav-links button{padding:8px 12px;min-height:40px}.home-stage{grid-template-columns:1fr;gap:6px;align-items:start;margin-top:8px;justify-items:stretch}.home-hero{align-items:flex-start;text-align:left}.home-visual{min-height:42vh}.app-home h1{font-size:28px}.app-home-grid{grid-template-columns:1fr}.app-layout{grid-template-columns:1fr;position:relative}.mobile-nav-toggle{display:inline-flex;position:fixed;top:10px;left:10px;z-index:70;width:44px;height:44px;align-items:center;justify-content:center;border:1px solid var(--border);background:#141414e6;color:var(--text-primary);border-radius:8px;cursor:pointer;font-size:18px}.sidebar-shell{position:fixed;top:0;left:-280px;width:260px;z-index:80;transition:left .18s ease}.sidebar-shell.open{left:0}.sidebar-overlay{position:fixed;top:0;right:0;bottom:0;left:0;border:none;background:#00000073;z-index:75}.chat-main{padding:0;width:100%;gap:0}.chat-header{padding:12px 14px 12px 68px}.error-banner{margin:0 10px}.loading-text{margin:12px 10px}.message-row{padding:4px 10px}.message-bubble.user,.message-bubble.assistant{font-size:16px}.message-bubble.assistant code{font-size:14px}.chat-input-container{padding:8px 10px 12px}.modal-header,.modal-body{padding:16px 18px}.billing-page,.settings-single-page{padding:16px 14px}.chats-manager-list{margin:12px 10px 0}.settings-icon-btn{width:44px;height:44px}.chat-input-row button{width:40px;height:40px;border-radius:20px}.rename-btn,.delete-btn{padding:8px 10px}.conversation-select-btn{padding:10px 9px}.toast{right:12px;left:12px;bottom:80px}}@media (max-width: 480px){.app-home{padding:16px 12px;gap:16px}.app-home h1{font-size:24px}.app-home-card{min-height:130px;padding:14px}.home-hero h1{font-size:36px}.home-nav-links a,.home-nav-links button{font-size:13px;padding:7px 10px}.message-row{padding:4px 8px}.message-bubble.user,.message-bubble.assistant{font-size:15px}.chat-input-container{padding:8px 8px 12px}.chat-header h1{font-size:16px}.chat-header p{font-size:13px}.modal-content{width:96%;max-height:92vh}.modal-header,.modal-body{padding:14px}.billing-summary,.subscribe-grid{grid-template-columns:1fr}.settings-modal-actions{flex-wrap:wrap}.settings-modal-actions button{flex:1;min-width:0}}