:root{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--bg:#061411;--bg-2:#0a1c16;--forest:#0d2a1f;--ink:#eaf3ec;--ink-2:#a9bdb0;--ink-3:#6f877a;--line:#aae6be1f;--line-2:#aae6be38;--glass:#ffffff09;--glass-2:#ffffff0f;--lime:#c8f27e;--green:#66cf7e;--teal:#3fae98;--ok:#9be59f;--err:#ff9a8a;--radius:18px;--accent-grad:linear-gradient(180deg, #d8f79a, #8fdc6f);--accent-text:#c8f27e;--accent-soft:#c8f27e1a;--accent-soft-2:#c8f27e33;--accent-line:#c8f27e59;--on-accent:#08170f;--bar-bg:#061411b8;--sidebar-bg:#06141159;--convbar-bg:#06141173;--composer-fade:#061411eb;--ghost-bg:#ffffff0d;--ghost-bg-hover:#ffffff17;--field-bg:#00000040;--glass-inset:inset 0 1px 0 #ffffff0a;--primary-shadow:0 6px 24px #a0e66e38;--primary-shadow-hover:0 8px 30px #a0e66e57;--panel-shadow:-20px 0 60px #00000073;--backdrop:#00000073;--title-accent:linear-gradient(180deg, #e2fbab, #7fd36f);--page-bg:radial-gradient(1200px 760px at 85% -10%, #2e96644d, transparent 60%), radial-gradient(900px 700px at -10% 28%, #1c786042, transparent 62%), radial-gradient(900px 700px at 105% 62%, #246e5033, transparent 62%), radial-gradient(1100px 800px at 40% 105%, #28825638, transparent 60%), var(--bg);--font:"Segoe UI Variable Display", "Segoe UI", system-ui, -apple-system, Roboto, "Helvetica Neue", Arial, sans-serif}:root[data-theme=light]{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--bg:#f6f8f3;--bg-2:#fff;--forest:#e9f0e3;--ink:#14231b;--ink-2:#46564c;--ink-3:#5f6f65;--line:#143c231a;--line-2:#143c2333;--glass:#ffffffb8;--glass-2:#fffffff5;--lime:#a6d64e;--green:#3f8f4e;--teal:#2b8a78;--ok:#2e7a32;--err:#b42318;--accent-grad:linear-gradient(180deg, #dcf7a6, #b3e67a);--accent-text:#3d6b10;--accent-soft:#aadc5024;--accent-soft-2:#96cd3c3d;--accent-line:#6eaa1e73;--on-accent:#10240f;--bar-bg:#ffffffd1;--sidebar-bg:#ffffff8c;--convbar-bg:#ffffffb3;--composer-fade:#f6f8f3f5;--ghost-bg:#fff;--ghost-bg-hover:#f0f5ea;--field-bg:#fff;--glass-inset:0 1px 2px #1428190d;--primary-shadow:0 4px 14px #78b42838;--primary-shadow-hover:0 6px 20px #78b42852;--panel-shadow:-20px 0 60px #14281926;--backdrop:#14231940;--title-accent:linear-gradient(180deg, #6aa51f, #3d7a12);--page-bg:radial-gradient(1100px 620px at 88% -12%, #c8f27e38, transparent 62%), radial-gradient(900px 640px at -12% 30%, #aae1be29, transparent 62%), var(--bg)}@media (prefers-color-scheme:light){:root[data-theme=system]{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--bg:#f6f8f3;--bg-2:#fff;--forest:#e9f0e3;--ink:#14231b;--ink-2:#46564c;--ink-3:#5f6f65;--line:#143c231a;--line-2:#143c2333;--glass:#ffffffb8;--glass-2:#fffffff5;--lime:#a6d64e;--green:#3f8f4e;--teal:#2b8a78;--ok:#2e7a32;--err:#b42318;--accent-grad:linear-gradient(180deg, #dcf7a6, #b3e67a);--accent-text:#3d6b10;--accent-soft:#aadc5024;--accent-soft-2:#96cd3c3d;--accent-line:#6eaa1e73;--on-accent:#10240f;--bar-bg:#ffffffd1;--sidebar-bg:#ffffff8c;--convbar-bg:#ffffffb3;--composer-fade:#f6f8f3f5;--ghost-bg:#fff;--ghost-bg-hover:#f0f5ea;--field-bg:#fff;--glass-inset:0 1px 2px #1428190d;--primary-shadow:0 4px 14px #78b42838;--primary-shadow-hover:0 6px 20px #78b42852;--panel-shadow:-20px 0 60px #14281926;--backdrop:#14231940;--title-accent:linear-gradient(180deg, #6aa51f, #3d7a12);--page-bg:radial-gradient(1100px 620px at 88% -12%, #c8f27e38, transparent 62%), radial-gradient(900px 640px at -12% 30%, #aae1be29, transparent 62%), var(--bg)}}.logo-for-light,:root[data-theme=light] .logo-for-dark{display:none!important}:root[data-theme=light] .logo-for-light{display:block!important}@media (prefers-color-scheme:light){:root[data-theme=system] .logo-for-dark{display:none!important}:root[data-theme=system] .logo-for-light{display:block!important}}*{box-sizing:border-box}html,body{min-height:100%;margin:0}body{font:17px/1.6 var(--font);color:var(--ink);background:var(--page-bg);background-attachment:fixed;overflow-x:hidden}h1,h2,h3{letter-spacing:-.02em;overflow-wrap:break-word;-webkit-hyphens:auto;hyphens:auto;margin:0 0 12px;font-weight:650;line-height:1.15}h1{font-size:clamp(1.9rem,4vw,2.6rem)}h2{font-size:1.5rem}h3{font-size:1.2rem}p{margin:0 0 12px}a{color:var(--accent-text)}:focus-visible{outline:2px solid var(--accent-text);outline-offset:3px}.muted{color:var(--ink-2)}.small{color:var(--ink-3);font-size:14px}.err{color:var(--err)}.ok{color:var(--ok)}em.accent{background:var(--title-accent);color:#0000;-webkit-background-clip:text;background-clip:text;font-style:normal}.topbar{z-index:10;border-bottom:1px solid var(--line);background:var(--bar-bg);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);justify-content:space-between;align-items:center;gap:12px;height:64px;padding:0 20px;display:flex;position:sticky;top:0}.topbar .brand img{width:auto;height:30px;display:block}.topbar nav{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.glass{background:linear-gradient(180deg, var(--glass-2), var(--glass));border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--glass-inset)}.btn{font:600 16px/1.2 var(--font);cursor:pointer;border:1px solid #0000;border-radius:12px;justify-content:center;align-items:center;gap:8px;padding:14px 24px;text-decoration:none;transition:transform .15s,box-shadow .25s,background .25s;display:inline-flex}.btn-primary{background:var(--accent-grad);color:var(--on-accent);box-shadow:var(--primary-shadow)}.btn-primary:hover:not(:disabled){box-shadow:var(--primary-shadow-hover);transform:translateY(-1px)}.btn-ghost{background:var(--ghost-bg);border-color:var(--line-2);color:var(--ink)}.btn-ghost:hover{background:var(--ghost-bg-hover)}.btn-small{border-radius:10px;padding:9px 16px;font-size:15px}.btn:disabled{opacity:.55;cursor:not-allowed}label{color:var(--ink-2);margin:0 0 6px;font-size:15px;display:block}.field{margin-bottom:18px}input[type=text],input[type=email],select,textarea{width:100%;font:16px/1.5 var(--font);color:var(--ink);background:var(--field-bg);border:1px solid var(--line-2);border-radius:12px;padding:12px 14px}select option{background:var(--bg-2)}input:focus,select:focus,textarea:focus{border-color:var(--accent-text);box-shadow:0 0 0 3px var(--accent-soft-2);outline:none}textarea{resize:vertical}.center-page{place-items:center;min-height:calc(100vh - 64px);padding:32px 16px;display:grid}.center-card{width:100%;max-width:480px;padding:32px}.chat-layout{grid-template-columns:280px minmax(0,1fr);min-height:calc(100vh - 64px);display:grid}.chat-layout>*{min-width:0}.sidebar{border-right:1px solid var(--line);background:var(--sidebar-bg);flex-direction:column;gap:12px;padding:18px;display:flex}.sidebar ul{flex-direction:column;gap:2px;margin:0;padding:0;list-style:none;display:flex;overflow-y:auto}.sidebar li a{color:var(--ink-2);white-space:nowrap;text-overflow:ellipsis;border-radius:10px;padding:9px 12px;font-size:15px;text-decoration:none;display:block;overflow:hidden}.sidebar li a:hover,.sidebar li a[aria-current=page]{background:var(--glass-2);color:var(--ink)}.chat-main{flex-direction:column;min-width:0;display:flex}.messages{flex-direction:column;flex:1;gap:18px;width:100%;max-width:860px;margin:0 auto;padding:28px 20px;display:flex}.msg-user{background:var(--accent-soft);border:1px solid var(--accent-soft-2);white-space:pre-wrap;overflow-wrap:anywhere;border-radius:16px 16px 4px;align-self:flex-end;max-width:85%;padding:12px 16px}.msg-ai{grid-template-columns:38px 1fr;align-items:start;gap:12px;display:grid}.avatar{width:38px;height:38px;font:700 14px var(--font);background:var(--accent-grad);color:var(--on-accent);border-radius:12px;place-items:center;display:grid}.msg-ai .bubble{min-width:0;padding:16px 18px}.msg-ai .text{white-space:pre-wrap;overflow-wrap:anywhere}.sources{border-top:1px dashed var(--line-2);margin-top:14px;padding-top:12px}.sources h4{color:var(--ink-3);text-transform:uppercase;letter-spacing:.06em;margin:0 0 6px;font-size:14px;font-weight:600}.sources ol{margin:0;padding-left:22px;font-size:15px}.sources li{color:var(--ink-2);margin:3px 0}.tag{border:1px solid var(--line-2);color:var(--ink-2);border-radius:999px;padding:2px 10px;font-size:14px;display:inline-block}.composer{background:linear-gradient(180deg, transparent, var(--composer-fade) 30%);padding:14px 20px 18px;position:sticky;bottom:0}.composer form{align-items:flex-end;gap:10px;max-width:860px;margin:0 auto;display:flex}.composer textarea{min-height:54px;max-height:220px}.composer .small{text-align:center;max-width:860px;margin:8px auto 0}.page{max-width:760px;margin:0 auto;padding:40px 20px 80px}.page section{margin-bottom:20px;padding:24px}.row{border-bottom:1px solid var(--line);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px;padding:10px 0;display:flex}.row:last-child{border-bottom:0}.main-nav{gap:4px;margin-left:24px;margin-right:auto;display:flex}.nav-link{color:var(--ink-2);border-radius:10px;padding:8px 14px;font-size:15px;font-weight:600;text-decoration:none}.nav-link:hover{color:var(--ink);background:var(--glass)}.nav-link.active{color:var(--ink);background:var(--glass-2);box-shadow:inset 0 -2px 0 var(--lime)}.topbar .tools{align-items:center;gap:8px;display:flex}.theme-btn{gap:6px}.theme-btn span[aria-hidden]{font-size:16px;line-height:1}.sidebar-search{padding:9px 12px!important;font-size:15px!important}.section-label{color:var(--ink-3);text-transform:uppercase;letter-spacing:.06em;margin:10px 0 4px;font-size:14px;font-weight:600}.sidebar li a{white-space:normal;flex-wrap:wrap;align-items:center;gap:2px 6px;display:flex}.conv-title{white-space:nowrap;text-overflow:ellipsis;flex:1;min-width:0;overflow:hidden}.conv-shared{color:var(--accent-text);font-size:14px}.conv-sub{color:var(--ink-3);text-overflow:ellipsis;white-space:nowrap;flex-basis:100%;font-size:14px;overflow:hidden}.chat-col{flex-direction:column;min-width:0;display:flex;overflow-x:clip}.conv-bar{border-bottom:1px solid var(--line);background:var(--convbar-bg);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;padding:12px 20px;display:flex}.conv-bar h1{overflow-wrap:break-word;-webkit-hyphens:auto;hyphens:auto;margin:0;font-size:1.15rem}.conv-bar .small{margin:4px 0 0}.conv-bar-title{flex:280px;min-width:0}.conv-bar-actions{flex-wrap:wrap;gap:6px;display:flex}.rename{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.rename input{flex:1;min-width:200px;padding:8px 12px}.btn.danger:hover{border-color:var(--err);color:var(--err)}.md p{overflow-wrap:anywhere;margin:0 0 10px}.md p:last-child{margin-bottom:0}.md ul,.md ol{margin:4px 0 10px;padding-left:22px}.md li{margin:4px 0}.md .md-h{color:var(--ink);margin-top:6px;font-weight:650}.md strong{color:var(--ink);font-weight:650}.cite{border:1px solid var(--accent-line);background:var(--accent-soft);min-width:22px;height:20px;color:var(--accent-text);font:600 14px/1 var(--font);vertical-align:2px;cursor:pointer;border-radius:6px;justify-content:center;align-items:center;margin:0 2px;padding:0 5px;display:inline-flex}.cite:hover{background:var(--accent-soft-2)}.source-link{color:var(--accent-text);font:inherit;text-underline-offset:3px;cursor:pointer;background:0 0;border:0;padding:0;text-decoration:underline}.cursor{vertical-align:-3px;background:var(--lime);border-radius:2px;width:9px;height:18px;margin-left:2px;animation:1s steps(2,end) infinite blink;display:inline-block}@keyframes blink{50%{opacity:0}}.thinking{align-items:center;gap:10px;display:flex}.thinking .dot{background:var(--lime);border-radius:50%;width:10px;height:10px;animation:1.4s ease-in-out infinite pulse}@keyframes pulse{0%,to{opacity:.3;transform:scale(.8)}50%{opacity:1;transform:scale(1)}}.msg-actions{flex-wrap:wrap;align-items:center;gap:8px;margin-top:14px;display:flex}.msg-actions button[aria-pressed=true]{border-color:var(--accent-text);color:var(--accent-text)}.feedback-comment{flex-basis:100%;gap:8px;display:flex}.feedback-comment input{flex:1;min-width:0;padding:8px 12px}.panel-backdrop{background:var(--backdrop);z-index:30;position:fixed;inset:0}.source-panel{z-index:31;background:var(--bg-2);width:min(560px,100vw - 24px);box-shadow:var(--panel-shadow);flex-direction:column;display:flex;position:fixed;top:12px;bottom:12px;right:12px}.source-head{border-bottom:1px solid var(--line);justify-content:space-between;align-items:flex-start;gap:12px;padding:20px 20px 12px;display:flex}.source-head h3{overflow-wrap:anywhere;font-size:1.1rem}.source-body{flex:1;padding:16px 20px;overflow-y:auto}.source-text{white-space:pre-wrap;color:var(--ink);overflow-wrap:anywhere;font-size:16px;line-height:1.65}.source-foot{border-top:1px solid var(--line);padding:14px 20px}.welcome{isolation:isolate;text-align:left;padding-bottom:12px;position:relative}.welcome .waves{z-index:-1;pointer-events:none;opacity:.9;width:calc(100% + 40px);height:300px;position:absolute;top:-28px;left:-20px;right:-20px;-webkit-mask-image:linear-gradient(#000 55%,#0000);mask-image:linear-gradient(#000 55%,#0000)}.welcome-head{text-align:center;padding:6vh 0 70px}.welcome-head h1{font-size:clamp(1.9rem,4.2vw,2.8rem)}.welcome-head em.accent{white-space:nowrap}.welcome section{margin-top:18px}.examples{gap:10px;display:grid}.example{text-align:left;font:16px/1.45 var(--font);color:var(--ink);cursor:pointer;justify-content:space-between;align-items:center;gap:12px;padding:14px 16px;display:flex}.example:hover{border-color:var(--line-2);background:var(--glass-2)}.example .arrow{color:var(--accent-text);font-size:22px;line-height:1}.topics{grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px;display:grid}.topic{padding:16px 18px}.topic-head{align-items:center;gap:10px;margin-bottom:6px;display:flex}.topic h3{margin:0;font-size:1.05rem}.topic p{margin-bottom:8px;font-size:15px}.topic ul{gap:4px;margin:0;padding:0;list-style:none;display:grid}.topic-q{text-align:left;color:var(--accent-text);font:15px/1.4 var(--font);cursor:pointer;background:0 0;border:0;padding:4px 0}.topic-q:hover{text-underline-offset:3px;text-decoration:underline}.topic-badge{background:var(--accent-soft-2);color:var(--accent-text);font:700 14px/1.2 var(--font);white-space:nowrap;border-radius:8px;padding:3px 9px;display:inline-block}.admin-bar{color:var(--ink-2);border-bottom:1px solid var(--line);flex-wrap:wrap;align-items:center;gap:12px;padding:8px 20px;font-size:14px;display:flex}.admin-bar.previewing{background:var(--accent-soft-2);color:var(--ink)}.admin-bar-form{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.admin-bar select{width:auto;max-width:100%;padding:6px 10px;font-size:14px}.style-line{margin:12px 0 0}.style-badge{border:1px solid var(--line-2);color:var(--ink-3);cursor:help;border-radius:999px;align-items:center;gap:7px;padding:2px 10px;font-size:14px;display:inline-flex}.style-dot{background:var(--ink-3);border-radius:50%;width:8px;height:8px}.style-badge.lit{color:var(--accent-text);border-color:var(--accent-text);background:var(--accent-soft)}.style-badge.lit .style-dot{background:var(--accent-text);box-shadow:0 0 6px var(--accent-text)}.admin-tabs{flex-wrap:wrap;gap:6px;margin:16px 0 20px;display:flex}.admin-h{margin:0 0 8px;font-size:1.2rem}.admin-form{flex-wrap:wrap;align-items:flex-end;gap:12px;display:flex}.admin-field{min-width:0;color:var(--ink-2);flex-direction:column;flex:180px;gap:4px;font-size:14px;display:flex}.admin-check{color:var(--ink-2);align-items:center;gap:6px;font-size:14px;display:flex}.admin-check input{width:auto}.plans-grid{grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px;display:grid}.plan-card{flex-direction:column;gap:8px;padding:24px;display:flex}.plan-card ul{color:var(--ink-2);flex:1;margin:0;padding-left:20px}.plan-price{color:var(--ink);font-size:1.6rem;font-weight:650}.qr-box{background:#fff;border-radius:12px;width:204px;padding:12px}.qr-box img{width:180px;height:180px;display:block}.page-wide{max-width:980px}.size-box{padding:18px 22px!important}.size-row{flex-wrap:wrap;gap:10px;display:flex}.size-row select{flex:1;min-width:220px}.deadline-toolbar{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin:8px 0;display:flex}.check{color:var(--ink);cursor:pointer;align-items:center;gap:8px;margin:0;font-size:16px;display:inline-flex}.check input{accent-color:#8fdc6f;width:18px;height:18px}.deadlines{gap:12px;margin:0 0 24px;padding:0;list-style:none;display:grid}.deadline{grid-template-columns:190px 1fr;gap:18px;padding:18px 20px;display:grid}.deadline.is-info{opacity:.85}.deadline.not-mine{opacity:.6}.deadline-date{border-right:1px solid var(--line);flex-direction:column;gap:6px;padding-right:16px;display:flex}.deadline-date strong{font-size:1.15rem;line-height:1.3}.countdown{color:var(--ink-2);font-size:15px}.countdown.soon{color:var(--accent-text);font-weight:650}.deadline-tags{flex-wrap:wrap;gap:6px;margin-bottom:8px;display:flex}.deadline h3{margin:0 0 6px}.deadline p{margin-bottom:10px}.deadline-actions{flex-wrap:wrap;gap:8px;display:flex}@media (max-width:860px){.chat-layout{grid-template-columns:minmax(0,1fr)}.sidebar{border-right:0;border-bottom:1px solid var(--line);max-height:260px}.topbar{gap:6px;padding:0 12px}.topbar .brand img{object-fit:cover;object-position:left;width:32px;height:30px}.main-nav{margin-left:4px}.nav-link{padding:8px 9px}.theme-label{display:none}.topbar .tools{gap:4px}.topbar .tools .btn-small{padding:8px 10px}.messages,.composer,.conv-bar{padding-left:16px;padding-right:16px}.center-card{padding:24px}.deadline{grid-template-columns:1fr;gap:10px}.deadline-date{border-right:0;flex-flow:wrap;align-items:baseline;gap:12px;padding-right:0}.source-panel{border-radius:18px 18px 0 0;width:100%;max-height:85vh;inset:auto 0 0}}@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}@media print{:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}body{color:#111;font-size:12pt;background:#fff!important}.topbar,.sidebar,.composer,.conv-bar-actions,.msg-actions,.panel-backdrop,.source-panel,.waves,.cursor{display:none!important}.chat-layout{display:block}.conv-bar{background:0 0;border:0;padding:0 0 12px}.conv-bar h1,.md strong,.md .md-h{color:#111}.messages{max-width:none;padding:0}.glass{box-shadow:none!important;background:0 0!important;border:1px solid #ccc!important}.msg-user{color:#111;background:#f3f6ef;border-color:#ccd}.avatar{background:#dfe8d6}.muted,.small,.sources li{color:#333!important}.cite,.source-link,a{color:#1b4e2e!important;background:0 0!important;border-color:#9b9!important}.msg-ai,.msg-user{break-inside:avoid}}