:root{color-scheme:dark;--bg:#080d19;--sidebar:#0b1120;--panel:#0d1424;--surface:#111b2d;--surface2:#162238;--border:#202d43;--text:#f1f5ff;--muted:#8b9ab4;--accent:#48d9f4;--accent2:#4e83ff;--shadow:0 18px 55px #0003}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:"DM Sans",system-ui,sans-serif;font-size:14px;min-height:100vh}button,textarea{font:inherit}button{color:inherit;cursor:pointer}.app-shell{display:flex;min-height:100vh}.sidebar{width:258px;flex:0 0 258px;background:var(--sidebar);border-right:1px solid var(--border);padding:24px 15px 16px;display:flex;flex-direction:column;min-height:100vh}.brand{display:flex;align-items:center;gap:11px;padding:0 8px 29px;text-decoration:none;color:var(--text)}.brand-mark{height:39px;width:39px;display:grid;place-items:center;border-radius:13px;background:linear-gradient(135deg,#3ce0ef,#3978ff);color:#07111e;font:700 14px "Space Grotesk",sans-serif;box-shadow:0 0 24px #31bde92a}.brand strong{display:block;font:700 17px "Space Grotesk",sans-serif;letter-spacing:-.4px}.brand small{display:block;color:var(--muted);font-size:9px;letter-spacing:1.7px;margin-top:3px}.new-chat{height:43px;width:100%;display:flex;align-items:center;gap:10px;padding:0 13px;border:1px solid #29445d;border-radius:11px;background:linear-gradient(100deg,#142c41,#14213b);font-weight:600;text-align:left}.new-chat span{font-size:21px;color:var(--accent)}.section-label{font-size:10px;font-weight:700;letter-spacing:1.5px;color:#72829d}.sidebar>.section-label{margin:29px 10px 10px}.nav-item{display:flex;align-items:center;gap:11px;width:100%;border:0;background:transparent;border-radius:9px;padding:11px;color:#b7c5db;text-align:left}.nav-item span{font-size:16px}.nav-item.active{background:#15243a;color:#e9faff}.history-heading{display:flex;align-items:center;justify-content:space-between;margin:28px 9px 11px}.text-button{border:0;background:transparent;color:#8193af;font-size:11px}.history-list{display:grid;gap:4px}.history-entry{display:block;width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;text-align:left;padding:10px;border:0;border-radius:8px;background:transparent;color:#aab8ce;font-size:12px}.history-entry:hover,.history-entry.selected{background:#141e30;color:#fff}.empty-history{color:#65748c;font-size:12px;padding:0 9px;line-height:1.6}.sidebar-bottom{margin-top:auto;border-top:1px solid var(--border);padding:16px 7px 0;color:#7586a0;font-size:11px}.sidebar-bottom p{margin:12px 0 0}.sidebar-bottom strong{color:#c7d5eb}.status-line{display:flex;align-items:center;gap:8px}.status-dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:#4ce1b2;box-shadow:0 0 10px #4ce1b24a}.main-panel{flex:1;min-width:0;display:flex;flex-direction:column;min-height:100vh;background:radial-gradient(ellipse at 55% 0%,#11213a4a,transparent 47%),var(--bg)}.topbar{height:68px;flex:0 0 68px;border-bottom:1px solid #1a2639a8;display:flex;align-items:center;gap:12px;padding:0 27px}.topbar-spacer{flex:1}.model-pill{display:flex;align-items:center;gap:8px;border:1px solid var(--border);border-radius:20px;padding:7px 11px;color:#b4c3d9;font-size:11px}.icon-button{height:35px;width:35px;border:1px solid var(--border);border-radius:10px;background:#101a2a;color:#b8c8de;font-size:17px}.menu-button,.mobile-brand{display:none}.chat-area{width:min(790px,calc(100% - 40px));margin:0 auto;flex:1;display:flex;flex-direction:column}.welcome{padding:clamp(42px,8vh,85px) 0 28px;text-align:center}.hero-orb{width:62px;height:62px;margin:0 auto 20px;border-radius:22px;display:grid;place-items:center;background:linear-gradient(145deg,#172f4a,#101c33);border:1px solid #28506a;box-shadow:0 0 55px #2bbce51b,inset 0 0 25px #4ddaf30a}.hero-orb span{font-size:30px;color:var(--accent);text-shadow:0 0 20px #35c9ed66}.eyebrow{font-size:10px;font-weight:700;letter-spacing:2.2px;color:var(--accent);margin:0 0 15px}.welcome h1{font:600 clamp(32px,4vw,45px)/1.12 "Space Grotesk",sans-serif;letter-spacing:-1.7px;margin:0}.welcome h1 span{background:linear-gradient(90deg,#64e5ef,#7ca0ff);color:transparent;background-clip:text}.welcome-copy{max-width:420px;margin:17px auto 28px;color:var(--muted);line-height:1.7;font-size:13px}.prompt-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;max-width:590px;margin:0 auto;text-align:left}.prompt-card{min-height:72px;border:1px solid var(--border);background:#0e1727c9;border-radius:13px;display:flex;align-items:center;gap:11px;padding:12px;transition:border-color .2s,transform .2s}.prompt-card:hover{border-color:#34708a;transform:translateY(-2px)}.prompt-icon{width:34px;height:34px;flex:0 0 34px;display:grid;place-items:center;border-radius:10px;font-size:17px}.cyan{background:#153747;color:#50dff1}.purple{background:#272342;color:#b7a4ff}.gold{background:#3a3020;color:#ffd27c}.green{background:#17372f;color:#7de3b6}.prompt-card strong,.prompt-card small{display:block}.prompt-card strong{font-size:12px;font-weight:600}.prompt-card small{font-size:10px;color:#8595af;margin-top:5px}.prompt-arrow{margin-left:auto;color:#72839e;font-size:15px}.messages{display:none;padding:28px 0 20px;gap:22px}.messages.visible{display:flex;flex-direction:column}.message{display:flex;align-items:flex-start;gap:12px;max-width:100%;animation:appear .22s ease-out}.message.user{flex-direction:row-reverse}.avatar{width:31px;height:31px;flex:0 0 31px;border-radius:10px;display:grid;place-items:center;background:#172b43;color:#56def0;font-size:11px;font-weight:700}.message.user .avatar{background:#263d70;color:#e2eaff}.message-content{max-width:min(650px,calc(100% - 45px));line-height:1.75;color:#d9e3f3;overflow-wrap:anywhere}.message.user .message-content{background:#15233a;border:1px solid #263a56;padding:10px 14px;border-radius:14px 4px 14px 14px;white-space:pre-wrap}.message.assistant .message-content{padding:3px 0}.message-content p{margin:0 0 12px}.message-content p:last-child{margin-bottom:0}.message-content pre{white-space:pre-wrap;overflow-x:auto;background:#080d16;border:1px solid var(--border);border-radius:10px;padding:13px;font:12px/1.6 ui-monospace,SFMono-Regular,monospace}.message-content code{font-family:ui-monospace,SFMono-Regular,monospace;background:#1a2940;padding:2px 5px;border-radius:5px;font-size:.92em}.message-content pre code{background:transparent;padding:0}.typing{display:flex;gap:5px;padding:12px 0}.typing span{height:6px;width:6px;border-radius:50%;background:#56d8ee;animation:bounce .8s infinite alternate}.typing span:nth-child(2){animation-delay:.15s}.typing span:nth-child(3){animation-delay:.3s}.composer-wrap{width:min(790px,calc(100% - 40px));margin:0 auto;padding:12px 0 15px}.composer{border:1px solid #293951;border-radius:17px;background:#0e1727;box-shadow:var(--shadow);padding:12px 13px 10px;transition:border-color .2s}.composer:focus-within{border-color:#367f9c}.composer textarea{width:100%;resize:none;max-height:180px;min-height:30px;border:0;outline:0;background:transparent;color:var(--text);padding:5px 3px 9px;line-height:1.5}.composer textarea::placeholder{color:#7586a0}.composer-bottom{display:flex;align-items:center;justify-content:space-between;gap:10px}.composer-hint{font-size:10px;color:#73839b}.send-button{height:34px;width:36px;border:0;border-radius:11px;background:linear-gradient(135deg,#4bdcf0,#598bff);color:#06101b;font-size:23px;font-weight:700;display:grid;place-items:center;box-shadow:0 4px 16px #2eb9e52b}.send-button:disabled{opacity:.45;cursor:not-allowed}.footer-note{text-align:center;color:#5f6e85;font-size:10px;margin:11px 0 0}.toast{position:fixed;left:50%;bottom:25px;transform:translate(-50%,20px);opacity:0;pointer-events:none;max-width:calc(100vw - 30px);background:#18273b;border:1px solid #314761;color:#e6f2ff;padding:11px 16px;border-radius:11px;font-size:12px;box-shadow:var(--shadow);transition:.2s;z-index:10}.toast.show{opacity:1;transform:translate(-50%,0)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@keyframes appear{from{opacity:0;transform:translateY(5px)}to{opacity:1;transform:translateY(0)}}@keyframes bounce{to{transform:translateY(-5px);opacity:.55}}
body.light{color-scheme:light;--bg:#f5f8fc;--sidebar:#fff;--panel:#f5f8fc;--surface:#fff;--surface2:#eef3fa;--border:#dbe3ee;--text:#18253a;--muted:#6c7b91;--shadow:0 18px 55px #243b5b12}.light .main-panel{background:radial-gradient(ellipse at 55% 0%,#dfeeff,transparent 50%),var(--bg)}.light .topbar{border-color:#e0e6ef}.light .icon-button,.light .composer,.light .prompt-card{background:#fff}.light .prompt-card strong{color:#18253a}.light .message-content{color:#26364e}.light .message.user .message-content{background:#e8f0ff;border-color:#d3e0f6}.light .composer textarea{color:#18253a}.light .hero-orb{background:linear-gradient(145deg,#e5f7ff,#e9edff)}.light .new-chat{background:#eaf5ff;color:#1c3550}.light .nav-item.active,.light .history-entry:hover,.light .history-entry.selected{background:#eaf0f8;color:#1c3550}
@media(max-width:760px){.sidebar{position:fixed;z-index:5;inset:0 auto 0 0;width:265px;transform:translateX(-105%);transition:transform .22s;box-shadow:var(--shadow)}.sidebar.open{transform:translateX(0)}.main-panel{width:100%}.topbar{height:58px;flex-basis:58px;padding:0 14px}.menu-button,.mobile-brand{display:flex;align-items:center}.mobile-brand{gap:8px;font:700 14px "Space Grotesk",sans-serif}.brand-mark.small{height:28px;width:28px;border-radius:9px;font-size:10px}.model-pill{font-size:10px;padding:6px 8px}.chat-area,.composer-wrap{width:calc(100% - 28px)}.welcome{padding-top:48px}.welcome h1{font-size:35px}.welcome-copy{font-size:12px;padding:0 8px}.prompt-grid{gap:8px}.prompt-card{padding:10px;gap:8px;min-height:77px}.prompt-icon{width:30px;height:30px;flex-basis:30px}.prompt-card strong{font-size:11px}.prompt-card small{font-size:9px;line-height:1.4}.composer-hint{max-width:78%;line-height:1.4}.messages{padding-top:22px}.footer-note{font-size:9px}}
@media(max-width:390px){.prompt-grid{grid-template-columns:1fr}.prompt-card{min-height:61px}.welcome{padding-top:30px}.welcome h1{font-size:31px}.model-pill{display:none}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}