:root{--font-display: "Onest", sans-serif;--font-body: "Manrope", sans-serif;--font-mono: "JetBrains Mono", monospace;--color-bg: #000000;--color-bg-sidebar: #000000;--color-surface: #0e0e0e;--color-surface-hover: #161616;--color-surface-active: #1f1f1f;--color-border: #ffffff;--color-border-strong: #ffffff;--color-text: #ffffff;--color-text-muted: #a3a3a3;--color-text-faint: #6b6b6b;--color-accent: #ffffff;--color-accent-2: #ffffff;--color-accent-hover: #ffffff;--color-accent-soft: rgba(255, 255, 255, .1);--color-accent-ring: rgba(255, 255, 255, .3);--grad-accent: #ffffff;--glow-accent: 0 0 0 3px rgba(255, 255, 255, .16);--color-danger: #e5484d;--color-success: #30a46c;--color-warning: #e2a336;--text-xs: .75rem;--text-sm: .875rem;--text-base: .9375rem;--text-md: 1.0625rem;--text-lg: 1.375rem;--text-xl: 1.75rem;--leading-body: 1.6;--leading-tight: 1.25;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 20px;--space-6: 24px;--space-8: 32px;--space-10: 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var(--space-3);padding-left:var(--space-4);border-left:2px solid var(--color-border-strong);color:var(--color-text-muted)}.md pre{font-family:var(--font-mono);font-size:var(--text-sm);background:#0e0e13;border:1px solid var(--color-border);border-radius:var(--radius-sm);padding:var(--space-4);overflow-x:auto;line-height:1.5;margin:0 0 var(--space-3)}.md code{font-family:var(--font-mono);font-size:.9em;background:var(--color-surface);padding:2px 6px;border-radius:6px}.md pre code{background:none;padding:0}.md table{border-collapse:collapse;width:100%;margin:0 0 var(--space-3);font-size:var(--text-sm)}.md th,.md td{border:1px solid var(--color-border);padding:var(--space-2) var(--space-3);text-align:left}.md th{background:var(--color-surface);font-family:var(--font-display);font-weight:500}.msg--user{display:flex;flex-direction:column;align-items:flex-end}.msg--user .msg__bubble{max-width:86%;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:var(--space-3) var(--space-4);color:var(--color-text);font-size:var(--text-base);white-space:pre-wrap;word-break:break-word}.msg--streaming .msg__cursor{display:inline-block;width:7px;height:1.1em;vertical-align:-2px;margin-left:2px;background:#fff;border-radius:2px;animation:blink 1s steps(2) infinite}@keyframes blink{50%{opacity:0}}.msg__error{display:flex;align-items:center;gap:var(--space-2);font-size:var(--text-sm);color:var(--color-danger);margin-top:var(--space-2)}.msg__retry{background:none;border:1px solid var(--color-border);color:var(--color-text);border-radius:var(--radius-sm);padding:2px var(--space-3);font-size:var(--text-xs);cursor:pointer}.msg__retry:hover{background:var(--color-surface-hover)}.quick-actions{display:flex;gap:var(--space-2);max-width:var(--composer-max);margin:0 auto var(--space-2);padding:0 var(--space-6);overflow-x:auto;scrollbar-width:none;animation:gen-params-in var(--t-base) var(--ease-out)}.quick-actions::-webkit-scrollbar{display:none}@media (prefers-reduced-motion: reduce){.quick-actions{animation:none}}.chip{flex:0 0 auto;padding:var(--space-2) var(--space-3);font-family:var(--font-display);font-size:var(--text-xs);font-weight:500;color:var(--color-text-muted);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-full);cursor:pointer;white-space:nowrap;transition:background var(--t-fast) var(--ease),color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease)}.chip:hover{background:var(--color-surface-hover);color:var(--color-text);border-color:var(--color-border-strong)}.chip:active{transform:scale(.97)}.composer-area{flex-shrink:0;position:relative;z-index:1}.composer-wrap{flex-shrink:0;padding:var(--space-4) var(--space-6) var(--space-6);background:linear-gradient(to top,var(--color-bg) 60%,transparent)}.composer{max-width:var(--composer-max);margin:0 auto;display:flex;flex-direction:column;background:var(--color-surface);border:2px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-2) var(--space-2) var(--space-2) var(--space-2);transition:border-color var(--t-fast) var(--ease),box-shadow var(--t-fast) var(--ease)}.composer:focus-within{border-color:var(--color-accent);box-shadow:var(--glow-accent)}.composer__main{display:flex;align-items:flex-end;gap:var(--space-2);padding-left:var(--space-2)}.composer__tools{flex-shrink:0;display:flex;gap:var(--space-1);padding-bottom:1px}.tool-btn{width:36px;height:36px;flex-shrink:0;display:grid;place-items:center;border:1px solid var(--color-border);border-radius:var(--radius-sm);background:transparent;color:var(--color-text-muted);cursor:pointer;transition:background var(--t-fast) var(--ease),color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease),transform var(--t-fast) var(--ease)}.tool-btn:hover:not(:disabled){background:var(--color-surface-hover);color:var(--color-text);border-color:var(--color-border-strong)}.tool-btn:active:not(:disabled){transform:scale(.92)}.tool-btn:disabled{opacity:.35;cursor:not-allowed}.tool-btn--active{background:var(--color-accent);color:#000;border-color:var(--color-accent)}.tool-btn--active:hover{background:var(--color-accent);color:#000;opacity:.85}.composer__input{flex:1;resize:none;border:none;background:none;outline:none;color:var(--color-text);font-family:var(--font-body);font-size:var(--text-base);line-height:1.5;padding:var(--space-2) 0;max-height:200px}.composer__input::placeholder{color:var(--color-text-faint)}.composer__send{flex-shrink:0;width:36px;height:36px;border-radius:var(--radius-sm);display:grid;place-items:center;border:none;cursor:pointer;background:#fff;color:#000;transition:opacity var(--t-fast) var(--ease),transform var(--t-fast) var(--ease)}.composer__send:hover{opacity:.85;transform:translateY(-1px)}.composer__send:active{transform:scale(.92)}.composer__send:disabled{background:var(--color-surface-active);color:var(--color-text-faint);box-shadow:none;cursor:not-allowed}.composer__send .spin{animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.composer__hint{max-width:var(--composer-max);margin:var(--space-2) auto 0;font-size:var(--text-xs);color:var(--color-text-faint);text-align:center}.gen-params{display:flex;flex-wrap:wrap;gap:var(--space-2);padding:0 var(--space-2) var(--space-3);border-bottom:1px solid rgba(255,255,255,.12);margin-bottom:var(--space-2);animation:gen-params-in var(--t-base) var(--ease-out)}@keyframes gen-params-in{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}.gen-pill{position:relative;display:inline-flex;align-items:center;border:1px solid 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var(--space-2)}.attach-thumb{position:relative;width:56px;height:56px;border:1px solid var(--color-border);border-radius:var(--radius-md);overflow:hidden;flex-shrink:0;animation:msg-in var(--t-fast) var(--ease-out) both}.attach-thumb img{width:100%;height:100%;object-fit:cover;display:block}.attach-thumb__x{position:absolute;top:2px;right:2px;width:18px;height:18px;display:grid;place-items:center;border:none;border-radius:var(--radius-full);background:#000000bf;color:#fff;font-size:14px;line-height:1;cursor:pointer;transition:background var(--t-fast) var(--ease)}.attach-thumb__x:hover{background:var(--color-danger)}@media (max-width: 640px){.tool-btn,.composer__send{width:44px;height:44px}}@media (prefers-reduced-motion: reduce){.gen-params,.attach-thumb{animation:none}.composer__send .spin{animation-duration:1.6s}}.img-frame{position:relative;display:inline-block;max-width:180px;margin:var(--space-2) 0}.img-frame img{display:block;width:100%;height:auto;border:1px solid var(--color-border);border-radius:var(--radius-md);cursor:zoom-in;transition:border-color var(--t-fast) var(--ease)}.img-frame:hover img{border-color:var(--color-border-strong)}.img-frame__dl{position:absolute;top:var(--space-2);right:var(--space-2);width:30px;height:30px;display:grid;place-items:center;border:none;border-radius:var(--radius-full);background:#000000b8;color:#fff;cursor:pointer;opacity:0;transition:opacity var(--t-fast) var(--ease),background var(--t-fast) var(--ease),transform var(--t-fast) var(--ease)}.img-frame:hover .img-frame__dl,.img-frame:focus-within .img-frame__dl{opacity:1}.img-frame__dl:hover{background:var(--color-accent);color:#000}.img-frame__dl:active{transform:scale(.9)}@media (hover: none){.img-frame__dl{opacity:1}}.lightbox{position:fixed;top:0;right:0;bottom:0;left:0;z-index:100;display:grid;place-items:center;padding:var(--space-6);background:#000000eb;animation:lightbox-in var(--t-base) var(--ease-out)}@keyframes lightbox-in{0%{opacity:0}to{opacity:1}}.lightbox__figure{position:relative;margin:0;display:flex;max-width:92vw;max-height:88vh}.lightbox__img{max-width:92vw;max-height:88vh;object-fit:contain;border-radius:var(--radius-md);border:1px solid rgba(255,255,255,.18);cursor:default}.lightbox__bar{position:absolute;top:var(--space-3);right:var(--space-3);display:flex;gap:var(--space-2);opacity:0;transform:translateY(-4px);transition:opacity var(--t-fast) var(--ease),transform var(--t-fast) var(--ease)}.lightbox__figure:hover .lightbox__bar,.lightbox__figure:focus-within .lightbox__bar{opacity:1;transform:translateY(0)}.lightbox__btn{display:inline-flex;align-items:center;gap:6px;padding:var(--space-2) var(--space-3);border:1px solid rgba(255,255,255,.25);border-radius:var(--radius-sm);background:#0009;color:#fff;font-family:var(--font-display);font-size:var(--text-xs);font-weight:500;line-height:1;cursor:pointer;transition:background var(--t-fast) var(--ease),color var(--t-fast) var(--ease),transform var(--t-fast) var(--ease)}.lightbox__btn:hover{background:var(--color-accent);color:#000;border-color:var(--color-accent)}.lightbox__btn:active{transform:scale(.95)}@media (hover: none){.lightbox__bar{opacity:1;transform:none}}@media (prefers-reduced-motion: reduce){.lightbox{animation:none}.lightbox__bar{transition:opacity var(--t-fast) var(--ease);transform:none}}.login{min-height:100vh;display:grid;place-items:center;padding:var(--space-6)}.login__card{width:100%;max-width:380px;background:var(--color-bg-sidebar);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-10) var(--space-8);box-shadow:var(--shadow-pop);animation:msg-in var(--t-slow) var(--ease-out) 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var(--ease)}.link-btn:hover{color:var(--color-text)}.starfield{position:absolute;top:0;right:0;bottom:0;left:0;z-index:0;overflow:hidden;pointer-events:none;-webkit-mask-image:linear-gradient(to bottom,#000 0%,#000 72%,transparent 96%);mask-image:linear-gradient(to bottom,#000 0%,#000 72%,transparent 96%)}.chat__header,.chat__scroll,.chat__empty,.composer-wrap{position:relative;z-index:1}.stars{position:absolute;top:-10%;right:0;bottom:-10%;left:0;background-repeat:repeat;will-change:background-position,opacity}.stars--1{background-image:radial-gradient(1.5px 1.5px at 20px 30px,#fff 50%,transparent 51%),radial-gradient(1.5px 1.5px at 80px 120px,#fff 50%,transparent 51%),radial-gradient(1.5px 1.5px at 130px 60px,#fff 50%,transparent 51%),radial-gradient(1.5px 1.5px at 50px 160px,#fff 50%,transparent 51%),radial-gradient(1.5px 1.5px at 170px 140px,#fff 50%,transparent 51%),radial-gradient(1.5px 1.5px at 110px 20px,#fff 50%,transparent 51%);background-size:200px 200px;opacity:.4;animation:star-drift1 90s linear infinite,star-twinkle 5.5s ease-in-out infinite}.stars--2{background-image:radial-gradient(2.5px 2.5px at 60px 90px,#fff 50%,transparent 51%),radial-gradient(2.5px 2.5px at 200px 40px,#fff 50%,transparent 51%),radial-gradient(2.5px 2.5px at 150px 220px,#fff 50%,transparent 51%),radial-gradient(2.5px 2.5px at 30px 250px,#fff 50%,transparent 51%),radial-gradient(2.5px 2.5px at 250px 180px,#fff 50%,transparent 51%);background-size:280px 300px;opacity:.55;animation:star-drift2 60s linear infinite,star-twinkle 7s ease-in-out infinite;animation-delay:0s,-2s}.stars--3{background-image:radial-gradient(3.5px 3.5px at 120px 80px,#fff 60%,transparent 61%),radial-gradient(3.5px 3.5px at 320px 200px,#fff 60%,transparent 61%),radial-gradient(3.5px 3.5px at 60px 320px,#fff 60%,transparent 61%),radial-gradient(3.5px 3.5px at 380px 360px,#fff 60%,transparent 61%);background-size:420px 420px;opacity:.8;animation:star-drift3 42s linear infinite,star-twinkle 4.5s ease-in-out infinite;animation-delay:0s,-1s}@keyframes star-drift1{0%{background-position:0 0}to{background-position:200px -200px}}@keyframes star-drift2{0%{background-position:0 0}to{background-position:280px -300px}}@keyframes star-drift3{0%{background-position:0 0}to{background-position:420px -420px}}@keyframes star-twinkle{0%,to{opacity:var(--star-op, .5)}50%{opacity:calc(var(--star-op, .5) * .45)}}.stars--1{--star-op: .4}.stars--2{--star-op: .55}.stars--3{--star-op: .8}.shooting{position:absolute;width:150px;height:2px;background:linear-gradient(90deg,rgba(255,255,255,.95),transparent);border-radius:2px;opacity:0;filter:drop-shadow(0 0 6px rgba(255,255,255,.7));will-change:transform,opacity}.shooting--1{top:-4%;left:8%;animation:shoot-dr 7s ease-in .5s infinite}.shooting--4{top:10%;left:-6%;animation:shoot-dr 9.5s ease-in 5.3s infinite}.shooting--2{top:-3%;right:10%;left:auto;animation:shoot-dl 8.5s ease-in 2.7s infinite}.shooting--5{top:14%;right:-6%;left:auto;animation:shoot-dl 12s ease-in 9.1s infinite}.shooting--3{top:-5%;left:46%;animation:shoot-steep 10.5s ease-in 6.4s infinite}.shooting--6{top:-4%;left:72%;animation:shoot-dl 11.3s ease-in 13.2s infinite}@keyframes shoot-dr{0%{opacity:0;transform:translateZ(0) rotate(32deg)}5%{opacity:1}16%{opacity:0;transform:translate3d(70vw,44vw,0) rotate(32deg)}to{opacity:0;transform:translate3d(70vw,44vw,0) rotate(32deg)}}@keyframes shoot-dl{0%{opacity:0;transform:translateZ(0) rotate(148deg)}5%{opacity:1}16%{opacity:0;transform:translate3d(-70vw,40vw,0) rotate(148deg)}to{opacity:0;transform:translate3d(-70vw,40vw,0) rotate(148deg)}}@keyframes shoot-steep{0%{opacity:0;transform:translateZ(0) rotate(72deg)}5%{opacity:1}16%{opacity:0;transform:translate3d(22vw,70vh,0) rotate(72deg)}to{opacity:0;transform:translate3d(22vw,70vh,0) rotate(72deg)}}@media (prefers-reduced-motion: reduce){.stars{animation:none!important}.shooting{display:none}}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:60;display:grid;place-items:center;padding:var(--space-6);background:#0000008c;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);animation:fade-in var(--t-fast) var(--ease) both}@keyframes fade-in{0%{opacity:0}}.modal-card{width:100%;max-width:420px;background:#0a0a0a;border:1px solid var(--color-border-strong);border-radius:var(--radius-lg);padding:var(--space-6);box-shadow:var(--shadow-pop);animation:msg-in var(--t-base) var(--ease-out) both}.modal-title{font-family:var(--font-display);font-weight:600;font-size:var(--text-md);margin-bottom:var(--space-4)}.modal-text{color:var(--color-text-muted);font-size:var(--text-sm);margin:0 0 var(--space-5)}.modal-actions{display:flex;justify-content:flex-end;gap:var(--space-2);margin-top:var(--space-5)}.modal-submit{width:auto;margin-top:0}.btn-ghost{padding:var(--space-2) var(--space-4);font-family:var(--font-display);font-weight:500;font-size:var(--text-sm);color:var(--color-text-muted);background:none;border:1px solid var(--color-border);border-radius:var(--radius-sm);cursor:pointer;transition:background var(--t-fast) var(--ease),color var(--t-fast) var(--ease)}.btn-ghost:hover{background:var(--color-surface-hover);color:var(--color-text)}.btn-danger{padding:var(--space-2) var(--space-4);font-family:var(--font-display);font-weight:600;font-size:var(--text-sm);color:#fff;background:var(--color-danger);border:none;border-radius:var(--radius-sm);cursor:pointer;transition:filter var(--t-fast) var(--ease),transform var(--t-fast) var(--ease)}.btn-danger:hover{filter:brightness(1.1)}.btn-danger:active{transform:scale(.985)}.toast-stack{position:fixed;bottom:var(--space-6);left:50%;transform:translate(-50%);z-index:70;display:flex;flex-direction:column;gap:var(--space-2);align-items:center;pointer-events:none}.toast{background:var(--color-surface-active);border:1px solid var(--color-border-strong);color:var(--color-text);font-size:var(--text-sm);padding:var(--space-2) var(--space-4);border-radius:var(--radius-full);box-shadow:var(--shadow-md);animation:toast-in var(--t-base) var(--ease-out) both}@keyframes toast-in{0%{opacity:0;transform:translateY(8px)}}.chat-item-wrap{position:relative;display:flex;align-items:center}.chat-item-wrap .chat-item{flex:1;margin-left:0;padding-right:var(--space-6)}.chat-menu-btn{position:absolute;right:var(--space-1);top:50%;transform:translateY(-50%);width:24px;height:24px;display:grid;place-items:center;border:none;background:none;color:var(--color-text-faint);border-radius:var(--radius-sm);cursor:pointer;opacity:0;transition:opacity var(--t-fast) var(--ease),background var(--t-fast) var(--ease),color var(--t-fast) var(--ease)}.chat-item-wrap:hover .chat-menu-btn,.chat-menu-btn--open{opacity:1}.chat-menu-btn:hover{background:var(--color-surface-active);color:var(--color-text)}.chat-menu{position:absolute;right:var(--space-2);top:calc(100% - var(--space-1));z-index:20;min-width:168px;background:var(--color-surface);border:1px solid var(--color-border-strong);border-radius:var(--radius-sm);box-shadow:var(--shadow-pop);padding:var(--space-1);animation:msg-in var(--t-fast) var(--ease-out) both}.chat-menu button{display:flex;align-items:center;gap:var(--space-2);width:100%;text-align:left;padding:var(--space-2) var(--space-3);border:none;background:none;color:var(--color-text);font-family:var(--font-body);font-size:var(--text-sm);border-radius:6px;cursor:pointer}.chat-menu button:hover{background:var(--color-surface-hover)}.chat-menu button.danger{color:var(--color-danger)}.chat-menu__sep{height:1px;background:var(--color-border);margin:var(--space-1) 0}.pin-badge{color:var(--color-text-faint);font-size:.7em;margin-right:var(--space-1)}.msg__actions{display:flex;gap:var(--space-1);margin-top:var(--space-2);opacity:0;transition:opacity var(--t-fast) var(--ease)}.msg--assistant:hover .msg__actions,.msg--user:hover .msg__actions{opacity:1}.msg--user .msg__actions{justify-content:flex-end}.msg-action{display:inline-flex;align-items:center;gap:var(--space-1);padding:2px var(--space-2);font-size:var(--text-xs);color:var(--color-text-muted);background:none;border:1px solid transparent;border-radius:6px;cursor:pointer;transition:background var(--t-fast) var(--ease),color var(--t-fast) var(--ease)}.msg-action:hover{background:var(--color-surface-hover);color:var(--color-text)}.msg-action--danger:hover{color:var(--color-danger)}.admin-list{max-height:320px;overflow-y:auto;margin-bottom:var(--space-5);display:flex;flex-direction:column;gap:var(--space-1)}.admin-row{display:flex;align-items:center;justify-content:space-between;gap:var(--space-3);padding:var(--space-2) var(--space-3);border-radius:var(--radius-sm);border:1px solid var(--color-border)}.admin-row__name{display:flex;align-items:center;gap:var(--space-2);font-size:var(--text-sm);font-weight:500}.admin-row__login{font-size:var(--text-xs);color:var(--color-text-faint)}.admin-row__actions{display:flex;gap:var(--space-1);flex-shrink:0}.admin-badge{font-size:.65rem;text-transform:uppercase;letter-spacing:.04em;padding:1px 6px;border-radius:var(--radius-full);background:var(--color-accent-soft);color:var(--color-accent)}.admin-badge--off{background:#e5484d29;color:var(--color-danger)}.admin-add{border-top:1px solid var(--color-border);padding-top:var(--space-4);display:flex;flex-direction:column;gap:var(--space-2)}.admin-add__title{font-family:var(--font-display);font-size:var(--text-sm);font-weight:600;margin-bottom:var(--space-1)}*::-webkit-scrollbar{width:14px;height:14px}*::-webkit-scrollbar-thumb{background:#fff;border-radius:var(--radius-full);border:3px solid transparent;background-clip:content-box}*::-webkit-scrollbar-thumb:hover{background:#fff;background-clip:content-box}.scrim{display:none}@media (max-width: 768px){.app{grid-template-columns:1fr}.sidebar{position:fixed;inset:0 auto 0 0;width:84vw;max-width:var(--sidebar-w);z-index:40;transform:translate(-100%);transition:transform var(--t-base) var(--ease)}.sidebar--open{transform:none;box-shadow:var(--shadow-pop)}.scrim--show{display:block;position:fixed;top:0;right:0;bottom:0;left:0;z-index:30;background:#00000080}.chat__menu-btn{display:block}.chat__scroll{padding:var(--space-6) var(--space-4) var(--space-8)}.composer-wrap{padding:var(--space-3) var(--space-4) var(--space-4)}}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation:none!important;transition:none!important}}