/* ==========================================================================
   Agentic OS · Chat
   Conversa no modelo do claude.ai (barra de chats, coluna de leitura,
   compositor grande, artefatos ao lado), vestida com o design system HUD.
   ========================================================================== */
html, body { height: 100%; }
body { background: var(--deep); padding: 14px; overflow: hidden; }
[hidden] { display: none !important; }
kbd { font: 500 10px var(--font-mono); padding: 1px 5px; border-radius: 4px; border: 1px solid var(--border-strong); color: var(--muted-foreground); }

.app { height: 100%; display: grid; grid-template-columns: 64px minmax(0, 1fr); grid-template-rows: minmax(0, 1fr); background: var(--background); }
.rail { display: flex; flex-direction: column; align-items: center; gap: 6px; padding: 18px 0; border-right: 1px solid var(--border); background: oklch(13% .035 255 / .55); }
.rail__logo { width: 34px; height: 34px; display: grid; place-items: center; margin-bottom: 14px; color: var(--cyan); filter: drop-shadow(0 0 6px var(--cyan)); }
.rail button { position: relative; width: 42px; height: 42px; border-radius: var(--radius); border: 1px solid transparent; background: transparent; color: var(--muted-foreground); display: grid; place-items: center; cursor: pointer; }
.rail button svg { width: 19px; height: 19px; }
.rail button:hover { color: var(--foreground); background: oklch(26% .06 245 / .5); }
.rail button[aria-current="page"] { color: var(--cyan); border-color: oklch(80% .13 205 / .45); background: oklch(80% .13 205 / .08); box-shadow: var(--glow-cyan-sm); }
.rail button[aria-current="page"]::before { content: ""; position: absolute; left: -12px; top: 10px; bottom: 10px; width: 2px; border-radius: 2px; background: var(--cyan); box-shadow: 0 0 8px var(--cyan); }
.rail [data-tip]:hover::after { content: attr(data-tip); position: absolute; left: 52px; white-space: nowrap; padding: 5px 10px; border-radius: var(--radius-sm); background: var(--popover); border: 1px solid var(--border-strong); color: var(--foreground); font: 600 12px var(--font-sans); z-index: 80; }
.rail .spacer { flex: 1; }

.chatapp { display: grid; grid-template-columns: 272px minmax(0, 1fr); min-height: 0; min-width: 0; transition: grid-template-columns var(--dur-slow) var(--ease-hud); }
.chatapp.side-closed { grid-template-columns: 0 minmax(0, 1fr); }
.chatapp.side-closed .cside { opacity: 0; pointer-events: none; }
.chatapp.has-artifact { grid-template-columns: 272px minmax(0, 1fr) minmax(380px, 46%); }
.chatapp.side-closed.has-artifact { grid-template-columns: 0 minmax(0, 1fr) minmax(380px, 50%); }

/* —— barra de chats —— */
.cside { display: flex; flex-direction: column; min-height: 0; overflow: hidden; border-right: 1px solid var(--border); background: oklch(14% .035 255 / .6); transition: opacity var(--dur-base); }
.cside__top { display: flex; align-items: center; gap: 8px; padding: 16px 14px 10px; }
.cside__top .brand { font-size: 1rem; letter-spacing: .32em; flex: 1; white-space: nowrap; }
.cside__top .btn-icon { width: 32px; height: 32px; }
.newchat { margin: 4px 12px 10px; justify-content: flex-start; }
.cnav { display: grid; gap: 2px; padding: 0 8px; }
.cnav button { display: flex; align-items: center; gap: 10px; height: 34px; padding: 0 10px; border-radius: var(--radius); border: 0; background: transparent; color: var(--muted-foreground); font: 600 13px var(--font-sans); cursor: pointer; text-align: left; }
.cnav button svg { width: 16px; height: 16px; }
.cnav button:hover { background: oklch(26% .06 245 / .45); color: var(--foreground); }
.cnav button[aria-current="true"] { color: var(--cyan); background: oklch(80% .13 205 / .08); }
.recents { flex: 1; overflow: auto; padding: 8px 8px 12px; scrollbar-width: thin; scrollbar-color: var(--border-strong) transparent; }
.recents .nav-section { padding: 14px 10px 6px; }
.recent { position: relative; display: flex; align-items: center; gap: 8px; width: 100%; height: 34px; padding: 0 8px 0 10px; border-radius: var(--radius); border: 1px solid transparent; background: transparent; color: var(--foreground); font: 500 13px var(--font-sans); text-align: left; cursor: pointer; }
.recent span { flex: 1; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; opacity: .86; }
.recent:hover { background: oklch(26% .06 245 / .45); }
.recent[aria-current="true"] { background: oklch(80% .13 205 / .08); border-color: oklch(80% .13 205 / .3); }
.recent[aria-current="true"] span { opacity: 1; }
.recent .more { opacity: 0; width: 24px; height: 24px; border: 0; border-radius: 6px; background: transparent; color: var(--muted-foreground); display: grid; place-items: center; cursor: pointer; }
.recent:hover .more, .recent[aria-current="true"] .more { opacity: 1; }
.recent .more svg { width: 14px; height: 14px; }
.recent .star { width: 12px; height: 12px; color: var(--warning); flex: none; }
.cside__foot { display: flex; align-items: center; gap: 10px; padding: 10px 14px; border-top: 1px solid var(--border); cursor: pointer; }
.cside__foot:hover { background: oklch(26% .06 245 / .3); }
.me { width: 32px; height: 32px; border-radius: 50%; display: grid; place-items: center; font: 700 12px var(--font-display); color: var(--primary-foreground); background: linear-gradient(135deg, var(--cyan), var(--electric)); box-shadow: var(--glow-cyan-sm); flex: none; }
.cside__foot b { display: block; font-size: 13px; } .cside__foot span { font-size: 11.5px; color: var(--muted-foreground); }

/* —— coluna principal —— */
.cmain { position: relative; display: grid; grid-template-rows: auto minmax(0, 1fr) auto; min-width: 0; min-height: 0;
  background: radial-gradient(ellipse 60% 50% at 50% 30%, oklch(30% .1 255 / .25), transparent 70%), var(--background); }
.chead { display: flex; align-items: center; gap: 10px; padding: 12px 18px; min-height: 58px; }
.chead .btn-icon { width: 34px; height: 34px; }
.ctitle { display: inline-flex; align-items: center; gap: 6px; min-width: 0; padding: 4px 10px; border-radius: var(--radius); border: 1px solid transparent; background: transparent; color: var(--foreground); font: 600 14.5px var(--font-sans); cursor: pointer; }
.ctitle span { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ctitle:hover { border-color: var(--border); background: oklch(26% .06 245 / .35); }
.ctitle svg { width: 14px; height: 14px; color: var(--muted-foreground); flex: none; }
.chead .right { margin-left: auto; display: flex; gap: 8px; align-items: center; }
.proj-chip { display: inline-flex; align-items: center; gap: 6px; height: 26px; padding: 0 10px; border-radius: 99px; border: 1px solid var(--border); font: 600 10px var(--font-mono); letter-spacing: .14em; text-transform: uppercase; color: var(--muted-foreground); }
.proj-chip svg { width: 12px; height: 12px; color: var(--cyan); }

.scrollzone { overflow: auto; min-height: 0; scrollbar-width: thin; scrollbar-color: var(--border-strong) transparent; }
.thread { max-width: 760px; margin: 0 auto; padding: 18px 24px 40px; display: grid; gap: 26px; }

/* boas-vindas */
.welcome { min-height: 100%; display: grid; align-content: center; justify-items: center; gap: 26px; padding: 30px 24px 80px; }
.welcome h1 { margin: 0; display: flex; align-items: center; gap: 14px; font: 500 clamp(1.7rem, 3.2vw, 2.4rem) var(--font-display); letter-spacing: -.01em; }
.welcome h1 canvas { width: 54px; height: 54px; }
.welcome .composer-wrap { width: min(720px, 100%); position: static; padding: 0; }
.suggest { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; max-width: 720px; }
.suggest button { display: inline-flex; align-items: center; gap: 8px; height: 34px; padding: 0 14px; border-radius: 99px; border: 1px solid var(--border); background: oklch(18% .05 252 / .45); color: var(--muted-foreground); font: 600 12.5px var(--font-sans); cursor: pointer; transition: all var(--dur-fast); }
.suggest button svg { width: 14px; height: 14px; color: var(--cyan); }
.suggest button:hover { color: var(--foreground); border-color: oklch(80% .13 205 / .5); box-shadow: var(--glow-cyan-sm); }
.welcome .hint-line { font: 500 var(--text-micro) var(--font-mono); letter-spacing: .22em; text-transform: uppercase; color: var(--subtle-foreground); }

/* mensagens */
.m-user { justify-self: end; max-width: 85%; display: grid; gap: 6px; justify-items: end; }
.m-user .bub { padding: 11px 15px; border-radius: 16px 16px 4px 16px; background: oklch(24% .06 250 / .85); border: 1px solid var(--border-strong); font: 400 14.5px/1.6 var(--font-sans); white-space: pre-wrap; word-break: break-word; }
.m-user .atts { display: flex; gap: 6px; flex-wrap: wrap; justify-content: flex-end; }
.m-actions { display: flex; gap: 2px; opacity: 0; transition: opacity var(--dur-fast); }
.m-user:hover .m-actions, .m-ai:hover .m-actions, .m-ai.is-last .m-actions { opacity: 1; }
.m-actions button { width: 28px; height: 28px; border-radius: 7px; border: 0; background: transparent; color: var(--muted-foreground); display: grid; place-items: center; cursor: pointer; }
.m-actions button:hover { color: var(--foreground); background: oklch(26% .06 245 / .6); }
.m-actions button[aria-pressed="true"] { color: var(--cyan); }
.m-actions svg { width: 15px; height: 15px; }
.m-actions .model-tag { font: 500 10px var(--font-mono); color: var(--subtle-foreground); align-self: center; margin-left: 8px; letter-spacing: .08em; }

.m-ai { display: grid; grid-template-columns: 30px minmax(0, 1fr); gap: 4px 14px; }
.m-ai .av { width: 30px; height: 30px; border-radius: 9px; display: grid; place-items: center; color: var(--c, var(--cyan)); background: color-mix(in oklab, var(--c, var(--cyan)) 14%, transparent); border: 1px solid color-mix(in oklab, var(--c, var(--cyan)) 40%, transparent); box-shadow: 0 0 14px color-mix(in oklab, var(--c, var(--cyan)) 25%, transparent); }
.m-ai .av svg { width: 16px; height: 16px; }
.m-ai .av.is-busy { animation: pulse-dot 1.4s ease-in-out infinite; }
.m-ai .body { min-width: 0; font: 400 15px/1.7 var(--font-sans); color: var(--foreground); }
.m-ai .m-actions { grid-column: 2; }
.body p { margin: 0 0 12px; }
.body h1, .body h2, .body h3 { font-family: var(--font-display); font-weight: 600; margin: 18px 0 8px; line-height: 1.3; }
.body h1 { font-size: 1.35rem; } .body h2 { font-size: 1.15rem; } .body h3 { font-size: 1rem; color: var(--cyan); }
.body ul, .body ol { margin: 0 0 12px; padding-left: 22px; }
.body li { margin: 4px 0; }
.body li::marker { color: var(--cyan); }
.body strong, .body b { color: oklch(98% .01 220); }
.body code { font: 500 .86em var(--font-mono); padding: 1px 6px; border-radius: 5px; background: oklch(12% .03 255 / .8); border: 1px solid var(--border); color: oklch(88% .08 200); }
.body blockquote { margin: 0 0 12px; padding: 6px 14px; border-left: 2px solid var(--violet); color: var(--muted-foreground); }
.body table { width: 100%; border-collapse: collapse; margin: 0 0 14px; font-size: 13.5px; }
.body th { text-align: left; font: 600 var(--text-micro) var(--font-mono); letter-spacing: .18em; text-transform: uppercase; color: var(--muted-foreground); border-bottom: 1px solid var(--border-strong); padding: 8px 10px; }
.body td { border-bottom: 1px solid var(--border); padding: 8px 10px; }
.body a { color: var(--cyan); text-decoration: none; border-bottom: 1px solid oklch(80% .13 205 / .4); }
.body .cite { display: inline-grid; place-items: center; min-width: 18px; height: 18px; padding: 0 4px; margin-left: 2px; border-radius: 5px; background: oklch(80% .13 205 / .14); color: var(--cyan); font: 600 10px var(--font-mono); vertical-align: 2px; cursor: pointer; border: 0; }
.codeblock { margin: 0 0 14px; border-radius: var(--radius-lg); border: 1px solid var(--border-strong); background: oklch(11% .03 255 / .95); overflow: hidden; }
.codeblock header { display: flex; align-items: center; gap: 8px; padding: 6px 8px 6px 14px; border-bottom: 1px solid var(--border); font: 600 10px var(--font-mono); letter-spacing: .16em; text-transform: uppercase; color: var(--muted-foreground); }
.codeblock header button { margin-left: auto; height: 26px; padding: 0 10px; border-radius: 6px; border: 0; background: transparent; color: var(--muted-foreground); font: 600 11px var(--font-sans); letter-spacing: 0; text-transform: none; cursor: pointer; display: inline-flex; gap: 6px; align-items: center; }
.codeblock header button:hover { color: var(--foreground); background: oklch(26% .06 245 / .6); }
.codeblock header svg { width: 13px; height: 13px; }
.codeblock pre { margin: 0; padding: 12px 16px; overflow: auto; font: 400 12.5px/1.65 var(--font-mono); color: oklch(88% .03 230); }
.codeblock .k { color: var(--violet); } .codeblock .s { color: var(--online); } .codeblock .c { color: var(--subtle-foreground); } .codeblock .f { color: var(--cyan); } .codeblock .n { color: var(--warning); }

/* raciocínio e ferramentas */
.think { margin: 0 0 12px; border-radius: var(--radius-lg); border: 1px solid var(--border); background: oklch(16% .045 252 / .5); }
.think > summary { list-style: none; display: flex; align-items: center; gap: 8px; padding: 8px 12px; cursor: pointer; font: 600 12.5px var(--font-sans); color: var(--muted-foreground); }
.think > summary::-webkit-details-marker { display: none; }
.think > summary svg { width: 14px; height: 14px; color: var(--violet); }
.think > summary .chev { margin-left: auto; transition: transform var(--dur-fast); }
.think[open] > summary .chev { transform: rotate(180deg); }
.think .tbody { padding: 0 14px 12px 34px; font-size: 13px; line-height: 1.6; color: var(--muted-foreground); border-top: 1px solid var(--border); padding-top: 10px; }
.think.is-live > summary { color: var(--violet); }
.tool { display: flex; align-items: center; gap: 10px; margin: 0 0 10px; padding: 8px 12px; border-radius: var(--radius); border: 1px solid var(--border); background: oklch(16% .045 252 / .45); font-size: 13px; color: var(--muted-foreground); }
.tool svg { width: 15px; height: 15px; color: var(--cyan); flex: none; }
.tool b { color: var(--foreground); font-weight: 600; }
.tool .st { margin-left: auto; font: 600 9.5px var(--font-mono); letter-spacing: .16em; text-transform: uppercase; }
.tool.is-run .st { color: var(--cyan); } .tool.is-ok .st { color: var(--online); }
.sources { display: flex; gap: 6px; flex-wrap: wrap; margin: -2px 0 12px; }
.sources a { display: inline-flex; align-items: center; gap: 6px; height: 26px; padding: 0 10px; border-radius: 99px; border: 1px solid var(--border); font: 500 11.5px var(--font-sans); color: var(--muted-foreground); text-decoration: none; }
.sources a b { color: var(--cyan); font: 600 10px var(--font-mono); }
.artcard { display: flex; align-items: center; gap: 12px; margin: 4px 0 14px; padding: 12px 14px; border-radius: var(--radius-lg); border: 1px solid oklch(80% .13 205 / .35); background: linear-gradient(180deg, oklch(22% .06 250 / .7), oklch(17% .05 252 / .7)); cursor: pointer; transition: all var(--dur-fast); max-width: 420px; }
.artcard:hover { border-color: var(--cyan); box-shadow: var(--glow-cyan-sm); }
.artcard .ic { width: 40px; height: 40px; border-radius: 10px; display: grid; place-items: center; background: oklch(80% .13 205 / .12); color: var(--cyan); flex: none; }
.artcard .ic svg { width: 18px; height: 18px; }
.artcard b { display: block; font-size: 14px; } .artcard span { font-size: 12px; color: var(--muted-foreground); }
.caret-live::after { content: "▍"; color: var(--cyan); animation: caret-blink 1s steps(1) infinite; margin-left: 1px; }
.err-box { padding: 10px 14px; border-radius: var(--radius); border: 1px solid oklch(62% .2 25 / .45); background: oklch(62% .2 25 / .08); font-size: 13.5px; }

/* —— compositor —— */
.composer-wrap { position: relative; padding: 0 24px 18px; }
.composer-box { max-width: 760px; margin: 0 auto; border-radius: 22px; border: 1px solid var(--border-strong); background: linear-gradient(180deg, oklch(21% .055 250 / .92), oklch(17% .05 252 / .92)); backdrop-filter: blur(16px); box-shadow: 0 18px 50px oklch(5% .02 255 / .55), inset 0 1px oklch(80% .13 205 / .08); transition: border-color var(--dur-base), box-shadow var(--dur-base); }
.composer-box:focus-within { border-color: oklch(80% .13 205 / .55); box-shadow: 0 18px 50px oklch(5% .02 255 / .55), 0 0 0 3px oklch(80% .13 205 / .08), var(--glow-cyan-sm); }
.composer-box.is-drag { border-color: var(--cyan); border-style: dashed; }
.composer-box textarea { display: block; width: 100%; min-height: 54px; max-height: 260px; resize: none; border: 0; outline: none; background: transparent; color: var(--foreground); padding: 16px 18px 6px; font: 400 15.5px/1.55 var(--font-sans); }
.composer-box textarea::placeholder { color: var(--muted-foreground); }
.ctools { display: flex; align-items: center; gap: 6px; padding: 6px 10px 10px; }
.ctools .tb { height: 34px; min-width: 34px; padding: 0 9px; border-radius: 10px; border: 1px solid var(--border); background: transparent; color: var(--muted-foreground); display: inline-flex; align-items: center; justify-content: center; gap: 6px; font: 600 12px var(--font-sans); cursor: pointer; transition: all var(--dur-fast); }
.ctools .tb svg { width: 16px; height: 16px; }
.ctools .tb:hover { color: var(--foreground); border-color: var(--border-strong); }
.ctools .tb[aria-pressed="true"] { color: var(--cyan); border-color: oklch(80% .13 205 / .5); background: oklch(80% .13 205 / .1); }
.ctools .spacer { flex: 1; }
.model-btn { border: 0 !important; font: 600 12.5px var(--font-sans) !important; color: var(--foreground) !important; }
.model-btn .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--c); box-shadow: 0 0 8px var(--c); }
.send { width: 36px; height: 36px; border-radius: 11px; border: 0; display: grid; place-items: center; color: var(--primary-foreground); background: linear-gradient(180deg, oklch(86% .12 205), oklch(76% .14 215)); box-shadow: var(--glow-cyan-sm); cursor: pointer; transition: transform var(--dur-fast), opacity var(--dur-fast); }
.send:disabled { opacity: .35; cursor: default; box-shadow: none; }
.send:not(:disabled):hover { transform: translateY(-1px); }
.send svg { width: 17px; height: 17px; }
.send.is-stop { background: oklch(24% .06 250); color: var(--foreground); border: 1px solid var(--border-strong); }
.voice-btn.is-on { color: var(--primary-foreground) !important; background: var(--cyan) !important; border-color: var(--cyan) !important; box-shadow: var(--glow-cyan-md); }
.att-row { display: flex; gap: 8px; flex-wrap: wrap; padding: 12px 14px 0; }
.att-row:empty { display: none; }
.att { position: relative; display: flex; align-items: center; gap: 10px; padding: 8px 30px 8px 10px; border-radius: 12px; border: 1px solid var(--border-strong); background: oklch(14% .04 255 / .7); max-width: 240px; }
.att .ic { width: 34px; height: 34px; border-radius: 8px; display: grid; place-items: center; background: oklch(80% .13 205 / .12); color: var(--cyan); flex: none; }
.att .ic svg { width: 16px; height: 16px; }
.att b { display: block; font-size: 12.5px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.att span { font: 500 10px var(--font-mono); color: var(--muted-foreground); letter-spacing: .08em; text-transform: uppercase; }
.att .x { position: absolute; top: 6px; right: 6px; width: 20px; height: 20px; border-radius: 6px; border: 0; background: transparent; color: var(--muted-foreground); display: grid; place-items: center; cursor: pointer; }
.att .x svg { width: 12px; height: 12px; }
.disclaimer { max-width: 760px; margin: 8px auto 0; text-align: center; font-size: 11.5px; color: var(--subtle-foreground); }
.mention-pop { position: absolute; left: 50%; bottom: calc(100% - 10px); transform: translateX(-50%); width: min(520px, calc(100% - 48px)); }
.voice-wave { display: flex; align-items: center; gap: 10px; padding: 14px 18px 6px; font: 600 var(--text-micro) var(--font-mono); letter-spacing: .22em; text-transform: uppercase; color: var(--cyan); }
.voice-wave .spectrum { height: 26px; flex: 1; }

/* —— painel de artefato —— */
.artpane { display: flex; flex-direction: column; min-width: 0; min-height: 0; border-left: 1px solid var(--border-strong); background: oklch(14% .04 255 / .96); animation: panel-in-right 400ms var(--ease-hud) both; }
.artpane__head { display: flex; align-items: center; gap: 10px; padding: 12px 14px; border-bottom: 1px solid var(--border); }
.artpane__head b { font-size: 14px; } .artpane__head .note { font-size: 11.5px; }
.artpane__head .right { margin-left: auto; display: flex; gap: 6px; align-items: center; }
.artpane__head .btn-icon { width: 32px; height: 32px; }
.artpane__body { flex: 1; min-height: 0; overflow: auto; }
.artpane__body .codeblock { margin: 0; border: 0; border-radius: 0; min-height: 100%; }
.art-preview { padding: 24px; }
.art-doc { max-width: 680px; margin: 0 auto; padding: 28px 32px; }
.vers { display: inline-flex; align-items: center; gap: 4px; font: 500 11px var(--font-mono); color: var(--muted-foreground); }

/* —— páginas: chats, projetos, artefatos —— */
.page { max-width: 900px; margin: 0 auto; padding: 18px 24px 40px; display: grid; gap: 18px; align-content: start; }
.page h2 { margin: 0; font: 500 1.6rem var(--font-display); }
.page__bar { display: flex; gap: 10px; align-items: center; }
.page__bar .input { flex: 1; }
.list-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 4px 12px; padding: 14px 16px; border-radius: var(--radius-lg); border: 1px solid var(--border); background: oklch(18% .05 252 / .4); cursor: pointer; transition: all var(--dur-fast); }
.list-row:hover { border-color: oklch(80% .13 205 / .45); background: oklch(20% .06 250 / .6); }
.list-row b { font-size: 14px; } .list-row .note { grid-column: 1; }
.list-row .when { grid-row: span 2; align-self: center; font: 500 11px var(--font-mono); color: var(--subtle-foreground); }
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 14px; }
.pcard { display: grid; gap: 10px; padding: 16px; border-radius: var(--radius-lg); border: 1px solid var(--border); background: oklch(18% .05 252 / .45); cursor: pointer; min-height: 150px; align-content: start; transition: all var(--dur-fast); }
.pcard:hover { border-color: oklch(80% .13 205 / .5); box-shadow: var(--glow-cyan-sm); }
.pcard .ic { width: 36px; height: 36px; border-radius: 10px; display: grid; place-items: center; color: var(--c, var(--cyan)); background: color-mix(in oklab, var(--c, var(--cyan)) 14%, transparent); border: 1px solid color-mix(in oklab, var(--c, var(--cyan)) 40%, transparent); }
.pcard .ic svg { width: 17px; height: 17px; }
.pcard b { font-size: 15px; } .pcard p { margin: 0; font-size: 12.5px; color: var(--muted-foreground); line-height: 1.5; }
.pcard .meta { margin-top: auto; font: 500 10px var(--font-mono); letter-spacing: .14em; text-transform: uppercase; color: var(--subtle-foreground); }
.pcard--new { border-style: dashed; place-content: center; justify-items: center; color: var(--cyan); }
.proj-layout { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 20px; }
.knowledge { display: grid; gap: 8px; align-content: start; }
.kfile { display: flex; align-items: center; gap: 10px; padding: 8px 10px; border-radius: var(--radius); border: 1px solid var(--border); font-size: 12.5px; }
.kfile svg { width: 14px; height: 14px; color: var(--cyan); }
.kfile span { margin-left: auto; font: 500 10px var(--font-mono); color: var(--muted-foreground); }

.toast-wrap { position: fixed; right: 26px; bottom: 26px; z-index: var(--z-toast); display: grid; gap: 10px; width: min(380px, calc(100% - 52px)); }

@media (max-width: 1100px) {
  .chatapp, .chatapp.has-artifact { grid-template-columns: 0 minmax(0, 1fr); }
  .chatapp .cside { position: absolute; z-index: 40; top: 0; bottom: 0; left: 0; width: 272px; opacity: 0; pointer-events: none; box-shadow: 20px 0 50px oklch(5% .02 255 / .6); }
  .chatapp.side-open .cside { opacity: 1; pointer-events: auto; }
  .chatapp { position: relative; }
  .artpane { position: absolute; inset: 0; z-index: 45; }
  .proj-layout { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  body { padding: 0; }
  .app { grid-template-columns: 1fr; grid-template-rows: auto minmax(0, 1fr); }
  .rail { flex-direction: row; padding: 6px 8px; border-right: 0; border-bottom: 1px solid var(--border); overflow-x: auto; }
  .rail__logo, .rail .spacer { display: none; }
  .rail button[aria-current="page"]::before { display: none; }
  .thread, .page { padding: 14px 16px 30px; }
  .composer-wrap { padding: 0 12px 12px; }
  .ctools .tb .lbl { display: none; }
  .m-user { max-width: 95%; }
}
.toast-wrap { z-index: 85; }
.body pre code, .codeblock pre code { all: unset; font: inherit; color: inherit; white-space: pre; }
.recent .more { flex: none; }
.flash { position: fixed; inset: 0; z-index: 99; background: white; opacity: .7; animation: fade-in 380ms reverse both; pointer-events: none; }