/* Roberto AI Engineering Lab V8
   Original LangChain-inspired agent engineering interface.
   Built as a visual adaptation; no LangChain website source code is copied. */

:root,
:root[data-theme="graphite"],
:root[data-theme="teletext"]{
  --screen-bg:#0b100d;
  --card-background:#111915;
  --fg:#f4f2e8;
  --muted:#a9b6ae;
  --line:#2b3931;
  --cyan:#8be8b0;
  --green:#8be8b0;
  --yellow:#d9ff72;
  --lime:#d9ff72;
  --red:#ff796e;
  --magenta:#c4a7ff;
  --blue:#8eb7ff;
  --shadow:rgba(0,0,0,.35);
  --lc-ink:#07100b;
  --lc-deep:#0b1511;
  --lc-panel:#111c16;
  --lc-panel-2:#17231c;
  --lc-paper:#f4f2e8;
  --lc-paper-2:#e9eee8;
  --lc-accent:#d9ff72;
  --lc-mint:#8be8b0;
  --lc-border:#2e3d34;
  --lc-soft-border:rgba(244,242,232,.12);
  --lc-radius:18px;
  --top-h:116px;
  --nav-w:280px;
  --footer-h:52px;
  --ui:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --display:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --mono:"SFMono-Regular",Consolas,"Liberation Mono",monospace;
}
:root[data-theme="light"]{
  --screen-bg:#f4f2e8;--card-background:#fff;--fg:#111713;--muted:#5f6d64;--line:#cbd5ce;
  --cyan:#11643b;--green:#11643b;--yellow:#32521e;--lime:#32521e;--shadow:rgba(17,23,19,.13);
  --lc-ink:#07100b;--lc-deep:#e9eee8;--lc-panel:#fff;--lc-panel-2:#eef3ee;--lc-paper:#0b1511;--lc-paper-2:#17231c;
  --lc-accent:#c7f36f;--lc-mint:#1e8650;--lc-border:#cbd5ce;--lc-soft-border:rgba(7,16,11,.12);
}
:root[data-theme="ink"],:root[data-theme="amber"]{
  --screen-bg:#10100d;--card-background:#17170f;--fg:#fff9dd;--muted:#c8c3a5;--line:#41412e;
  --cyan:#f4d35e;--green:#b9e769;--yellow:#f4d35e;--lime:#d9ff72;--shadow:rgba(0,0,0,.48);
  --lc-deep:#15150f;--lc-panel:#1b1b13;--lc-panel-2:#222218;--lc-paper:#fff9dd;--lc-paper-2:#f1eccb;--lc-accent:#f4d35e;--lc-mint:#b9e769;--lc-border:#41412e;--lc-soft-border:rgba(255,249,221,.13);
}
:root[data-theme="contrast"]{
  --screen-bg:#000;--card-background:#000;--fg:#fff;--muted:#fff;--line:#fff;
  --cyan:#00ff8a;--green:#00ff8a;--yellow:#d9ff00;--lime:#d9ff00;--shadow:#000;
  --lc-deep:#000;--lc-panel:#000;--lc-panel-2:#080808;--lc-paper:#fff;--lc-paper-2:#fff;--lc-accent:#d9ff00;--lc-mint:#00ff8a;--lc-border:#fff;--lc-soft-border:#fff;
}

html{font-size:16px;background:var(--screen-bg)}
body{font-family:var(--ui);background:var(--screen-bg);color:var(--fg);letter-spacing:-.012em}
body,.screen{min-height:100svh}
.screen{background:var(--screen-bg)}
.screen:after{display:none!important}
button,input,textarea,select{font-family:var(--ui)}
::selection{background:var(--lc-accent);color:var(--lc-ink)}

/* Elevated, taller header — the mobile gap issue from the previous project is eliminated. */
.top-stack{position:sticky;top:0;z-index:200;height:var(--top-h);border-bottom:1px solid var(--lc-border);box-shadow:0 18px 50px rgba(0,0,0,.18);background:rgba(11,21,17,.94);backdrop-filter:blur(18px)}
.masthead{height:74px;padding:0 clamp(18px,3vw,34px);background:var(--lc-deep);color:var(--fg);border:0;gap:24px}
.masthead-left,.masthead-right{gap:16px;min-width:0}
.masthead-left{flex:1}
.masthead-logo{display:inline-flex;align-items:center;gap:12px;color:var(--fg);font-size:inherit;letter-spacing:0;min-width:max-content}
.masthead-logo img{width:42px;height:42px;border-radius:12px;box-shadow:inset 0 0 0 1px rgba(255,255,255,.08)}
.masthead-logo>span{display:grid;line-height:1.1}
.masthead-logo b{font-size:15px;letter-spacing:-.02em}
.masthead-logo small{font:500 11px/1.2 var(--ui);color:var(--muted);letter-spacing:.01em;margin-top:3px}
.masthead-tagline{font:600 11px/1 var(--ui);letter-spacing:.08em;text-transform:uppercase;color:var(--muted);padding-left:16px;border-left:1px solid var(--lc-border)}
.masthead-right{justify-content:flex-end;font:600 12px/1 var(--ui);letter-spacing:0;text-transform:none}
.header-search{width:min(290px,24vw);height:40px;border:1px solid var(--lc-border);border-radius:11px;background:rgba(255,255,255,.035);color:var(--muted);display:flex;align-items:center;justify-content:space-between;padding:0 11px 0 14px;cursor:pointer}
.header-search:hover{border-color:var(--lc-mint);color:var(--fg)}
.header-search kbd,.command-search-row kbd{font:600 10px/1 var(--mono);border:1px solid var(--lc-border);background:rgba(255,255,255,.04);padding:5px 7px;border-radius:6px;color:var(--muted)}
.header-link{color:var(--muted);font-weight:600;text-decoration:none;padding:10px 2px}
.header-link:hover{color:var(--lc-accent)}
.runtime-pill{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--lc-border);border-radius:999px;padding:9px 12px;color:var(--fg);white-space:nowrap}
.runtime-pill i,.preview-status i,.nav-runtime-card i,.chat-history-foot i{width:7px;height:7px;border-radius:50%;background:var(--lc-mint);box-shadow:0 0 0 4px rgba(139,232,176,.1)}
.masthead-page{font:700 11px/1 var(--mono);color:var(--lc-accent);border-left:1px solid var(--lc-border);padding-left:16px}
.sr-clock{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}
.mobile-menu{width:44px;height:44px;display:none;place-content:center;gap:5px;border:1px solid var(--lc-border);border-radius:11px;background:rgba(255,255,255,.04);padding:0}
.mobile-menu span{width:20px;height:2px;background:var(--fg);display:block;border-radius:2px;transition:.2s}
.drawer-open .mobile-menu span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.drawer-open .mobile-menu span:nth-child(2){opacity:0}
.drawer-open .mobile-menu span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.ticker-wrapper{height:42px;background:#080d0a;border:0;display:flex;align-items:stretch;overflow:hidden}
.ticker-label{min-width:110px;background:var(--lc-accent);color:var(--lc-ink);font:800 10px/1 var(--ui);letter-spacing:.12em;padding:0 14px}
.lifecycle-rail{display:flex;align-items:stretch;border-right:1px solid var(--lc-border)}
.lifecycle-rail button{min-width:92px;border:0;border-right:1px solid var(--lc-border);background:transparent;color:var(--muted);display:flex;align-items:center;gap:8px;padding:0 14px;cursor:pointer}
.lifecycle-rail button b{font:700 9px var(--mono);color:var(--lc-mint)}
.lifecycle-rail button span{font:700 11px var(--ui)}
.lifecycle-rail button.active,.lifecycle-rail button:hover{color:var(--fg);background:rgba(255,255,255,.045)}
.ticker-track{opacity:.7}
.ticker-text{font:600 10px var(--mono);letter-spacing:.08em;color:var(--muted);animation:ticker-roll 45s linear infinite}

/* Sidebar */
.layout-shell{grid-template-columns:var(--nav-w) minmax(0,1fr);min-height:calc(100svh - var(--top-h) - var(--footer-h));padding-bottom:var(--footer-h)}
.module-nav{top:var(--top-h);height:calc(100svh - var(--top-h) - var(--footer-h));background:var(--lc-deep);border-right:1px solid var(--lc-border);box-shadow:none;padding:18px 14px;display:flex;flex-direction:column;gap:5px}
.nav-lab-card{display:grid;grid-template-columns:44px minmax(0,1fr) auto;align-items:center;gap:11px;padding:10px 7px 18px;border-bottom:1px solid var(--lc-border);margin-bottom:10px}
.nav-lab-mark img{width:42px;height:42px;border-radius:12px}
.nav-lab-card>div:nth-child(2){display:grid;min-width:0}
.nav-lab-card strong{font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.nav-lab-card span{font-size:10px;color:var(--muted);margin-top:4px}
.nav-lab-card em{font:700 8px var(--mono);color:var(--lc-mint);font-style:normal}
.nav-section-label{font:700 9px var(--ui);letter-spacing:.13em;text-transform:uppercase;color:#728077;padding:8px 12px}
.module-nav button{position:relative;width:100%;min-height:58px;display:grid;grid-template-columns:36px minmax(0,1fr) 24px;grid-template-areas:"code title idx" "code sub idx";align-items:center;border:1px solid transparent;border-radius:12px;background:transparent;color:var(--fg);padding:8px 10px;font-family:var(--ui);transition:background .2s,border-color .2s,transform .2s}
.module-nav button b{grid-area:code;width:32px;height:32px;display:grid;place-items:center;border:1px solid var(--lc-border);border-radius:9px;color:var(--muted);font:700 14px var(--ui)}
.module-nav button span{grid-area:title;color:var(--fg);font:650 13px/1.2 var(--ui);text-transform:none}
.module-nav button small{grid-area:sub;color:var(--muted);font:500 10px/1.2 var(--ui);letter-spacing:0;text-transform:none;margin-top:3px}
.module-nav button em{grid-area:idx;font:700 9px var(--mono);color:#69766e;font-style:normal;text-align:right}
.module-nav button:hover{background:rgba(255,255,255,.045);border-color:var(--lc-border);transform:translateX(2px)}
.module-nav button.active{background:var(--lc-panel-2);border-color:#405248;box-shadow:inset 3px 0 var(--lc-accent);color:var(--fg)}
.module-nav button.active b{background:var(--lc-accent);border-color:var(--lc-accent);color:var(--lc-ink)}
.module-nav button.active span{color:var(--fg)}
.module-nav button.active small{color:var(--muted)}
.nav-runtime-card{margin-top:auto;border:1px solid var(--lc-border);border-radius:14px;background:rgba(255,255,255,.025);padding:13px;display:grid;gap:5px}
.nav-runtime-card span{display:flex;align-items:center;gap:8px;color:var(--lc-mint);font-size:10px}
.nav-runtime-card strong{font-size:12px}
.nav-runtime-card small{font-size:9px;color:var(--muted)}

/* Main surfaces */
.main-panel{background:var(--screen-bg);background-image:linear-gradient(rgba(255,255,255,.024) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.024) 1px,transparent 1px);background-size:48px 48px}
.view{min-height:calc(100svh - var(--top-h) - var(--footer-h));overflow:hidden}
.command-content{padding:clamp(18px,3vw,38px);gap:22px;max-width:1540px;margin-inline:auto;width:100%}
.page-title{min-height:150px;display:grid;grid-template-columns:70px minmax(0,1fr);grid-template-rows:auto auto;align-content:center;column-gap:18px;row-gap:5px;padding:30px clamp(22px,4vw,58px);background:linear-gradient(135deg,var(--lc-panel),var(--lc-deep));border-bottom:1px solid var(--lc-border)}
.page-title>span{grid-row:1/3;width:54px;height:54px;display:grid;place-items:center;border-radius:15px;background:var(--lc-accent);color:var(--lc-ink);font:800 11px var(--mono)}
.page-title h1{font:700 clamp(32px,4.3vw,64px)/.98 var(--display);color:var(--fg);letter-spacing:-.055em;text-transform:none}
.page-title p{grid-column:2;font:500 13px/1.65 var(--ui);color:var(--muted);max-width:760px}
.cyan-head,.green-head,.yellow-head,.magenta-head,.blue-head,.red-head{background:linear-gradient(130deg,var(--lc-panel),var(--lc-deep))}
.panel,.lab-window,.benchmark-layout,.source-note{border:1px solid var(--lc-border);border-radius:var(--lc-radius);background:var(--lc-panel);box-shadow:0 24px 70px rgba(0,0,0,.18);overflow:hidden}

/* Hero */
.dashboard-view{position:relative;display:none!important;background:radial-gradient(ellipse at 78% 28%,rgba(139,232,176,.13),transparent 38%),radial-gradient(ellipse at 62% 85%,rgba(217,255,114,.08),transparent 36%),var(--screen-bg)!important;min-height:calc(100svh - var(--top-h) - var(--footer-h));padding:clamp(24px,4vw,66px);align-items:center}
.dashboard-view.active{display:grid!important}
#morphCanvas{position:absolute;inset:0;width:100%;height:100%;opacity:.25;filter:hue-rotate(38deg) saturate(.7);pointer-events:none}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,.88fr) minmax(520px,1.12fr);gap:clamp(36px,5vw,86px);align-items:center;width:min(1500px,100%);margin:auto}
.hero-copy-block{max-width:740px;padding:0;background:transparent;border:0;box-shadow:none}
.hero-eyebrow{display:inline-flex;align-items:center;gap:10px;border:1px solid var(--lc-border);border-radius:999px;background:rgba(255,255,255,.035);padding:9px 13px;color:var(--muted);font:700 10px var(--ui);letter-spacing:.07em;text-transform:uppercase}
.live-dot{width:8px;height:8px;background:var(--lc-mint);box-shadow:0 0 0 5px rgba(139,232,176,.11)}
.hero-title{margin:26px 0 20px;font:650 clamp(56px,7vw,112px)/.88 var(--display);letter-spacing:-.075em;color:var(--fg)}
.hero-title span{display:block}
.hero-title .accent{color:var(--lc-accent);margin-left:clamp(0px,4vw,70px)}
.hero-copy{font:500 clamp(15px,1.3vw,19px)/1.65 var(--ui);color:var(--muted);max-width:660px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:12px;min-height:48px;padding:0 20px;border:1px solid var(--lc-border);border-radius:12px;background:transparent;color:var(--fg);font:700 12px var(--ui);letter-spacing:0;text-transform:none}
.btn-primary{background:var(--lc-accent);border-color:var(--lc-accent);color:var(--lc-ink)}
.btn-primary:hover{background:#ebffad;transform:translateY(-2px)}
.btn-ghost:hover{border-color:var(--lc-mint);background:rgba(139,232,176,.08)}
.agent-lifecycle{display:grid;grid-template-columns:repeat(4,1fr);margin-top:34px;border-top:1px solid var(--lc-border);border-bottom:1px solid var(--lc-border)}
.agent-lifecycle>div{position:relative;display:grid;gap:4px;padding:17px 12px;border-right:1px solid var(--lc-border)}
.agent-lifecycle>div:last-child{border:0}
.agent-lifecycle b{font:700 9px var(--mono);color:var(--lc-mint)}
.agent-lifecycle span{font-size:13px;font-weight:700}
.agent-lifecycle small{font-size:9px;color:var(--muted)}
.agent-lifecycle .active:after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;background:var(--lc-accent)}
.hero-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--lc-border);border:1px solid var(--lc-border);border-radius:14px;overflow:hidden;margin-top:18px}
.hero-metrics>div{background:rgba(17,28,22,.92);padding:14px;display:grid;gap:3px}
.hero-metrics strong{font:700 24px var(--display);color:var(--fg)}
.hero-metrics span{font:600 9px var(--ui);text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}

.agent-preview{position:relative;border:1px solid #3a4d42;border-radius:22px;background:#f6f7f4;color:#141915;box-shadow:0 40px 100px rgba(0,0,0,.38);overflow:hidden;min-height:620px;transform:perspective(1300px) rotateY(-2deg) rotateX(1deg)}
.agent-preview:before{content:"";position:absolute;inset:-1px;pointer-events:none;border-radius:inherit;box-shadow:inset 0 0 0 1px rgba(255,255,255,.5)}
.agent-preview-top{height:72px;display:flex;align-items:center;justify-content:space-between;padding:0 20px;border-bottom:1px solid #dfe4df;background:#fff}
.agent-preview-top>div{display:flex;align-items:center;gap:11px}
.preview-mark img{width:38px;height:38px;border-radius:11px}
.agent-preview-top p{display:grid}
.agent-preview-top strong{font-size:13px}
.agent-preview-top small{font-size:10px;color:#738078;margin-top:3px}
.preview-status{display:flex;align-items:center;gap:8px;border:1px solid #dce4dd;border-radius:999px;padding:8px 11px;font-size:10px;font-weight:700}
.agent-preview-body{display:grid;grid-template-columns:118px minmax(0,1fr);min-height:495px}
.preview-history{border-right:1px solid #dfe4df;background:#eef1ee;padding:14px 10px;display:flex;flex-direction:column;gap:8px}
.preview-history button{border:1px solid transparent;background:transparent;border-radius:10px;color:#59655e;min-height:54px;padding:8px;text-align:left;display:grid;gap:3px;cursor:pointer}
.preview-history .new-thread{min-height:38px;place-content:center;font-size:20px;border-color:#d8dfd9;background:#fff}
.preview-history button.active{background:#fff;border-color:#d7ded8;color:#111713;box-shadow:0 4px 14px rgba(0,0,0,.05)}
.preview-history span{font:700 9px var(--mono);color:#34875b}
.preview-history small{font-size:9px;line-height:1.35}
.preview-thread{padding:22px;display:flex;flex-direction:column;gap:14px;background:#fafbf9}
.preview-message{display:grid;grid-template-columns:44px minmax(0,1fr);gap:8px;align-items:start}
.preview-message span{font:800 8px var(--mono);color:#728078;padding-top:10px}
.preview-message p{font:500 11px/1.55 var(--ui);padding:10px 12px;border-radius:12px;max-width:88%}
.preview-message.user p{background:#151d18;color:#fff;margin-left:auto}
.preview-message.assistant p{background:#e9eee9;color:#182019}
.preview-trace{border:1px solid #d9e0da;border-radius:13px;background:#fff;overflow:hidden;margin:2px 0 auto}
.preview-trace>div{display:grid;grid-template-columns:34px minmax(0,1fr) auto;align-items:center;gap:9px;padding:11px 12px;border-bottom:1px solid #e5e9e5;font-size:10px}
.preview-trace>div:last-child{border:0}
.preview-trace b{width:24px;height:24px;display:grid;place-items:center;border-radius:7px;background:#edf0ed;font:700 8px var(--mono)}
.preview-trace em{font:700 8px var(--mono);font-style:normal;color:#8a958e}
.preview-trace .done b{background:#d9f4e3;color:#17643b}
.preview-trace .active{background:#f3fbdc}
.preview-trace .active b{background:#d9ff72;color:#1a2b16}
.preview-composer{height:52px;border:1px solid #cfd7d0;border-radius:13px;background:#fff;display:flex;align-items:center;justify-content:space-between;padding:0 7px 0 14px;color:#8a958e;font-size:10px;box-shadow:0 8px 24px rgba(0,0,0,.06)}
.preview-composer button{width:38px;height:38px;border:0;border-radius:10px;background:#111a14;color:#fff;font-size:17px}
.agent-preview-foot{height:52px;display:flex;align-items:center;justify-content:space-between;padding:0 18px;border-top:1px solid #dfe4df;background:#fff;font:700 8px var(--mono);color:#6e7a72}
.agent-preview-foot span:first-child{color:#167144}
.integration-marquee{position:relative;z-index:2;grid-column:1/-1;margin-top:20px;display:flex;flex-wrap:wrap;justify-content:center;gap:10px 26px;color:var(--muted);font:700 10px var(--ui)}
.integration-marquee span{padding:7px 0}

/* Architecture and systems become a clean product grid rather than teletext. */
.clip-stage{padding:0}
.clip-card{display:grid;grid-template-columns:minmax(280px,.75fr) minmax(0,1.25fr);gap:0;border:1px solid var(--lc-border);border-radius:20px;background:var(--lc-panel);overflow:hidden;box-shadow:0 28px 80px rgba(0,0,0,.18)}
.clip-copy{padding:clamp(28px,4vw,58px);display:flex;flex-direction:column;justify-content:center}
.clip-copy>span{font:750 10px var(--mono);color:var(--lc-mint);letter-spacing:.08em}
.clip-copy h3{font:650 clamp(34px,4vw,62px)/.98 var(--display);letter-spacing:-.055em;color:var(--fg);margin:18px 0}
.clip-copy p{font:500 14px/1.75 var(--ui);color:var(--muted)}
.architecture-photo{border:0;min-height:520px;border-radius:0;filter:saturate(.72) contrast(1.04)}
.architecture-photo:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(11,21,17,.7),transparent 40%),linear-gradient(0deg,rgba(11,21,17,.8),transparent 45%);pointer-events:none}
.architecture-photo-overlay{z-index:3}
.architecture-photo-flow span{border-radius:999px;background:rgba(11,21,17,.68);border:1px solid rgba(217,255,114,.35);backdrop-filter:blur(8px)}
.framework-feed{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:22px}
.feed-item{border:1px solid var(--lc-border);border-radius:16px;background:var(--lc-panel);padding:22px;min-height:220px;box-shadow:none;transition:.25s}
.feed-item:hover{border-color:var(--lc-mint);transform:translateY(-4px);background:var(--lc-panel-2)}
.feed-item:before{content:"";display:block;width:32px;height:3px;background:var(--lc-accent);border-radius:10px;margin-bottom:34px}
.feed-item h3{font:650 19px/1.25 var(--ui);color:var(--fg);letter-spacing:-.025em}
.feed-source{margin-top:auto;padding-top:18px;border-top:1px solid var(--lc-border)}
.feed-source span,.feed-source b,.pub-date{font:700 8px var(--mono);color:var(--muted)}
.feed-item p{font:500 12px/1.65 var(--ui);color:var(--muted);margin-top:12px}
.bento-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:14px}
.bento{border:1px solid var(--lc-border);border-radius:18px;background:var(--lc-panel);box-shadow:none;padding:24px;overflow:hidden}
.bento:hover{border-color:var(--lc-mint);background:var(--lc-panel-2)}
.bento-top{font:700 9px var(--mono);color:var(--lc-mint)}
.bento h3{font:650 clamp(23px,2.2vw,34px)/1.05 var(--ui);letter-spacing:-.045em;color:var(--fg)}
.bento p{font:500 12px/1.65 var(--ui);color:var(--muted)}

/* Playground / Agent Chat UI */
.lab-window{background:var(--lc-panel);border-radius:20px}
.window-bar{height:54px;background:var(--lc-deep);border-bottom:1px solid var(--lc-border);padding:0 18px;font:700 10px var(--mono);color:var(--muted)}
.window-bar>div i{width:8px;height:8px;border-radius:50%}
.lab-tabs{display:flex;overflow-x:auto;background:var(--lc-deep);border-bottom:1px solid var(--lc-border);padding:7px 9px;gap:5px}
.lab-tabs button{min-width:max-content;border:1px solid transparent;border-radius:9px;background:transparent;color:var(--muted);font:700 10px var(--ui);padding:9px 13px}
.lab-tabs button:hover,.lab-tabs button.active{background:var(--lc-panel-2);border-color:var(--lc-border);color:var(--fg)}
.lab-body{padding:0;background:var(--lc-panel)}
.agent-chat-shell{display:grid;grid-template-columns:230px minmax(0,1fr) 260px;min-height:680px;background:#f7f8f5;color:#121713}
.chat-history-panel{background:#eef1ed;border-right:1px solid #d7ded8;padding:16px 12px;display:flex;flex-direction:column;gap:8px}
.chat-history-head{display:flex;align-items:center;justify-content:space-between;padding:4px 6px 12px}
.chat-history-head strong{font-size:12px}
.chat-history-head button{width:32px;height:32px;border:1px solid #d2dad3;border-radius:9px;background:#fff;font-size:18px}
.chat-thread-item{display:grid;gap:4px;text-align:left;border:1px solid transparent;border-radius:11px;background:transparent;padding:11px;cursor:pointer}
.chat-thread-item span{font:700 8px var(--mono);color:#78857c}
.chat-thread-item strong{font-size:11px;line-height:1.3}
.chat-thread-item small{font-size:9px;color:#7e8b82}
.chat-thread-item.active{background:#fff;border-color:#d6ddd7;box-shadow:0 5px 14px rgba(13,25,17,.05)}
.chat-history-foot{margin-top:auto;display:flex;align-items:center;gap:8px;color:#6c786f;font-size:9px;padding:11px 7px;border-top:1px solid #d6ddd7}
.chat-thread-panel{display:grid;grid-template-rows:66px minmax(0,1fr) auto;min-width:0;background:#fbfcfa}
.chat-thread-head{display:flex;align-items:center;justify-content:space-between;padding:0 18px;border-bottom:1px solid #dde3de;background:#fff}
.chat-thread-head>div{display:flex;align-items:center;gap:10px}
.agent-avatar img{width:36px;height:36px;border-radius:10px}
.chat-thread-head p{display:grid}
.chat-thread-head strong{font-size:12px}
.chat-thread-head small{font-size:9px;color:#7a877e;margin-top:3px}
.icon-action{border:1px solid #d8dfd9;border-radius:8px;background:#fff;color:#59655d;padding:8px 10px;font-size:9px;font-weight:700}
.chat-message-stream{overflow:auto;padding:24px;display:flex;flex-direction:column;justify-content:center}
.chat-empty-state{max-width:720px;margin:auto;text-align:center}
.large-agent-mark img{width:58px;height:58px;border-radius:16px;box-shadow:0 14px 30px rgba(0,0,0,.12)}
.chat-empty-state h3{font:650 clamp(28px,3vw,42px)/1 var(--ui);letter-spacing:-.055em;margin:20px 0 10px}
.chat-empty-state>p{font-size:12px;line-height:1.65;color:#69766d;max-width:520px;margin:auto}
.prompt-suggestions{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:28px}
.prompt-suggestions button{border:1px solid #d5ddd6;border-radius:12px;background:#fff;padding:14px;text-align:left;display:grid;gap:7px;cursor:pointer;transition:.2s}
.prompt-suggestions button:hover{border-color:#4f8c69;transform:translateY(-2px);box-shadow:0 10px 28px rgba(0,0,0,.07)}
.prompt-suggestions strong{font-size:11px}
.prompt-suggestions span{font-size:9px;color:#758178;line-height:1.4}
.agent-composer{margin:0 22px 22px;border:1px solid #ccd5ce;border-radius:15px;background:#fff;box-shadow:0 14px 34px rgba(0,0,0,.07);overflow:hidden}
.agent-composer textarea{width:100%;min-height:74px;resize:none;border:0;outline:0;background:transparent;color:#151b17;padding:16px 17px;font:500 12px/1.55 var(--ui)}
.composer-toolbar{display:flex;align-items:center;justify-content:space-between;padding:8px 9px 9px 12px;border-top:1px solid #edf0ed}
.composer-toolbar>div{display:flex;align-items:center;gap:12px}
.composer-toolbar label{display:flex;align-items:center;gap:8px;font-size:8px;color:#718078;text-transform:uppercase;font-weight:700}
.composer-toolbar input{width:80px}
.composer-icon{width:30px;height:30px;border:0;border-radius:8px;background:#eef2ee;color:#536158;font-size:16px}
.composer-send{min-height:36px;border:0;border-radius:10px;background:#111a14;color:#fff;padding:0 13px}
.composer-send span{font-size:16px}
.agent-composer>small{display:block;padding:0 13px 11px;color:#8a958e;font-size:8px}
.chat-live-result{max-width:820px;width:100%;margin:auto;display:grid;gap:18px}
.chat-live-result.hidden{display:none!important}
.stream-message{display:grid;grid-template-columns:48px minmax(0,1fr);gap:10px;align-items:start}
.stream-message>span{font:800 8px var(--mono);color:#738078;padding-top:11px}
.stream-message p,.stream-message pre{white-space:pre-wrap;font:500 11px/1.65 var(--ui);border-radius:13px;padding:13px 15px;max-width:100%;overflow:auto}
.stream-message.user p{background:#141b16;color:#fff;justify-self:end;max-width:80%}
.stream-message.assistant pre{background:#eef2ee;color:#1a211c;border:1px solid #dbe2dc}
.inline-trace{display:flex;gap:6px;flex-wrap:wrap;margin-top:10px}
.inline-trace span{border:1px solid #d4ddd6;border-radius:999px;background:#fff;padding:6px 9px;font:700 8px var(--mono);color:#647168}
.inline-trace span.active{background:#d9ff72;border-color:#b8df4d;color:#26351e}
.artifact-panel{background:#f0f3ef;border-left:1px solid #d7ded8;padding:14px;display:flex;flex-direction:column;gap:12px}
.artifact-head{height:40px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #d7ded8;font-size:11px;font-weight:700}
.artifact-head b{font:700 8px var(--mono);color:#27744b}
.artifact-card{border:1px solid #d3dcd5;border-radius:12px;background:#fff;padding:13px;display:grid;gap:5px}
.artifact-card span{font:700 8px var(--mono);color:#3c805b}
.artifact-card strong{font-size:12px}
.artifact-card small{font-size:9px;color:#758078}
.artifact-steps{border:1px solid #d5ddd6;border-radius:12px;background:#fff;overflow:hidden}
.artifact-steps>div{display:grid;grid-template-columns:27px minmax(0,1fr) auto;align-items:center;gap:8px;padding:11px;border-bottom:1px solid #e3e8e4;font-size:9px}
.artifact-steps>div:last-child{border:0}
.artifact-steps b{width:22px;height:22px;border-radius:7px;background:#edf1ed;display:grid;place-items:center;font:700 7px var(--mono)}
.artifact-steps em{font:700 7px var(--mono);font-style:normal;color:#8c978f}
.artifact-steps .done b{background:#daf4e3;color:#17653b}
.artifact-meta{margin-top:auto;border-top:1px solid #d5ddd6;padding-top:12px;display:grid;grid-template-columns:1fr auto;gap:8px;font-size:8px}
.artifact-meta span{color:#818c84}
.artifact-meta strong{font-size:8px}

/* Existing playground panels */
.lab-panel:not([data-panel="chat"]){padding:22px;background:var(--lc-panel)}
.panel-grid{gap:18px}
.lab-panel label{font:750 9px var(--ui);letter-spacing:.08em;color:var(--lc-mint)}
.lab-panel textarea,.lab-panel input,.lab-panel select{border:1px solid var(--lc-border);border-radius:10px;background:var(--lc-deep);color:var(--fg);padding:12px;font:500 12px/1.5 var(--ui)}
.output{border:1px solid var(--lc-border);border-radius:14px;background:var(--lc-deep);overflow:hidden}
.output-head{background:var(--lc-panel-2);border-bottom:1px solid var(--lc-border);font:700 9px var(--ui)}
.output pre{font:500 11px/1.65 var(--mono);color:var(--muted)}
.run-btn{border:1px solid var(--lc-accent);border-radius:10px;background:var(--lc-accent);color:var(--lc-ink);font:750 10px var(--ui);letter-spacing:0;padding:11px 14px}
.run-btn.secondary{background:transparent;color:var(--lc-accent)}

/* Benchmarks, source, deployment */
.benchmark-layout{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(300px,.55fr);gap:0}
.benchmark-chart{background:var(--lc-panel);padding:22px;border-right:1px solid var(--lc-border)}
.chart-title{font:700 9px var(--mono);color:var(--muted)}
.benchmark-table{background:var(--lc-deep)}
.benchmark-row{border-bottom:1px solid var(--lc-border);padding:16px}
.benchmark-row strong{font:650 12px var(--ui)}
.benchmark-row>span{font:500 9px var(--mono);color:var(--muted)}
.source-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.source-item{border:1px solid var(--lc-border);border-radius:15px;background:var(--lc-panel);padding:17px;box-shadow:none}
.source-item:hover{border-color:var(--lc-mint)}
.source-item .num{background:var(--lc-accent);color:var(--lc-ink);border-radius:9px}
.source-item h3{font:650 15px var(--ui);color:var(--fg)}
.source-item p,.source-item code,.source-item>a,.source-item>span{font-size:9px}
.source-note{padding:22px}
.deployment-content{min-height:calc(100svh - var(--top-h) - var(--footer-h) - 150px);align-content:center;padding:clamp(36px,7vw,110px);background:radial-gradient(ellipse at 78% 30%,rgba(217,255,114,.11),transparent 35%)}
.deployment-content .contact-shape{display:none!important}
.deployment-content h2{font:650 clamp(50px,8vw,118px)/.88 var(--display);letter-spacing:-.075em;color:var(--fg)}
.deployment-content h2 em{color:var(--lc-accent);font-style:normal}
.deployment-content>p:not(.eyebrow){font:500 15px/1.75 var(--ui);color:var(--muted);max-width:760px}
.eyebrow{font:750 10px var(--mono);color:var(--lc-mint)}

/* Fixed lower command bar */
.fastext-bar{height:var(--footer-h);background:#080d0a;border-top:1px solid var(--lc-border);padding:5px;gap:5px}
.fastext-bar button{min-width:120px;border:1px solid transparent;border-radius:8px;background:transparent;color:var(--muted);font:700 9px var(--ui);letter-spacing:0}
.fastext-bar button:hover,.fastext-bar button.active{background:var(--lc-panel-2);border-color:var(--lc-border);color:var(--fg)}
.fastext-bar b{color:var(--lc-mint);font:700 8px var(--mono)}
.sound-toggle{border-color:var(--lc-border);background:var(--lc-panel);border-radius:11px}
#cur{background:var(--lc-accent)}
#cur-ring{border-color:var(--lc-mint)}

/* Command palette */
.command-palette[hidden]{display:none}
.command-palette{position:fixed;inset:0;z-index:1000;display:grid;place-items:start center;padding-top:min(18vh,160px)}
.command-backdrop{position:absolute;inset:0;background:rgba(1,7,4,.72);backdrop-filter:blur(8px)}
.command-dialog{position:relative;width:min(620px,calc(100vw - 28px));border:1px solid #44564b;border-radius:17px;background:#111a14;color:#f4f2e8;box-shadow:0 40px 120px rgba(0,0,0,.55);overflow:hidden}
.command-search-row{height:60px;display:grid;grid-template-columns:28px minmax(0,1fr) auto;align-items:center;gap:8px;padding:0 15px;border-bottom:1px solid #2d3b32}
.command-search-row>span{font-size:23px;color:#8be8b0}
.command-search-row input{width:100%;border:0;outline:0;background:transparent;color:#fff;font:600 14px var(--ui)}
.command-dialog>p{font:700 9px var(--ui);letter-spacing:.11em;text-transform:uppercase;color:#77847c;padding:14px 16px 8px}
.command-results{display:grid;padding:0 8px 9px}
.command-results button{height:46px;border:0;border-radius:9px;background:transparent;color:#e9eee9;display:flex;align-items:center;justify-content:space-between;padding:0 11px;font-weight:650;cursor:pointer}
.command-results button:hover,.command-results button:focus{background:#1b2920;outline:none}
.command-results kbd{font:700 8px var(--mono);color:#8be8b0}

/* Scrollbars */
html::-webkit-scrollbar,body::-webkit-scrollbar,.module-nav::-webkit-scrollbar,.lab-tabs::-webkit-scrollbar,.chat-message-stream::-webkit-scrollbar{width:9px;height:9px}
html::-webkit-scrollbar-track,body::-webkit-scrollbar-track,.module-nav::-webkit-scrollbar-track,.lab-tabs::-webkit-scrollbar-track,.chat-message-stream::-webkit-scrollbar-track{background:#09100c}
html::-webkit-scrollbar-thumb,body::-webkit-scrollbar-thumb,.module-nav::-webkit-scrollbar-thumb,.lab-tabs::-webkit-scrollbar-thumb,.chat-message-stream::-webkit-scrollbar-thumb{background:#3d5446;border:2px solid #09100c;border-radius:999px}

@media(max-width:1280px){
  .masthead-tagline{display:none}
  .header-search{width:220px}
  .hero-grid{grid-template-columns:minmax(0,.8fr) minmax(470px,1.2fr);gap:40px}
  .agent-preview{min-height:580px}
  .agent-chat-shell{grid-template-columns:190px minmax(0,1fr) 225px}
  .framework-feed{grid-template-columns:repeat(2,minmax(0,1fr))}
}

@media(max-width:1020px){
  :root,:root[data-theme]{--nav-w:0px;--top-h:112px}
  .mobile-menu{display:grid}
  .masthead{height:70px;padding:0 14px}
  .ticker-wrapper{height:42px}
  .header-search{width:44px;padding:0;display:grid;place-items:center}
  .header-search span{display:none}.header-search:before{content:"⌕";font-size:21px}.header-search kbd{display:none}
  .header-link{display:none}
  .masthead-logo img{width:40px;height:40px}
  .module-nav{position:fixed;z-index:350;top:var(--top-h);bottom:var(--footer-h);left:0;width:min(330px,90vw);height:auto;transform:translateX(-105%);transition:transform .25s ease;box-shadow:24px 0 70px rgba(0,0,0,.45)}
  .drawer-open .module-nav{transform:none}
  .drawer-open:before{content:"";position:fixed;z-index:320;inset:var(--top-h) 0 var(--footer-h);background:rgba(0,0,0,.66);backdrop-filter:blur(4px)}
  .layout-shell{display:block}
  .dashboard-view{padding:32px 20px 60px}
  .hero-grid{grid-template-columns:1fr;gap:42px}
  .hero-copy-block{max-width:800px}
  .agent-preview{width:min(860px,100%);margin:auto;transform:none}
  .integration-marquee{margin-top:0}
  .agent-chat-shell{grid-template-columns:170px minmax(0,1fr)}
  .artifact-panel{display:none}
  .clip-card{grid-template-columns:1fr}
  .architecture-photo{min-height:440px}
  .benchmark-layout{grid-template-columns:1fr}
  .benchmark-chart{border-right:0;border-bottom:1px solid var(--lc-border)}
}

@media(max-width:720px){
  :root,:root[data-theme]{--top-h:110px;--footer-h:48px}
  .masthead{height:72px;padding:0 10px;gap:8px}
  .ticker-wrapper{height:38px}
  .masthead-left,.masthead-right{gap:8px}
  .masthead-logo{gap:8px}
  .masthead-logo img{width:42px;height:42px}
  .masthead-logo b{font-size:13px}.masthead-logo small{font-size:9px}
  .runtime-pill{padding:8px;width:34px;height:34px;justify-content:center}.runtime-pill span{display:none}
  .masthead-page{display:none}
  .ticker-label{min-width:88px;font-size:8px;padding:0 8px}
  .lifecycle-rail{flex:1;min-width:0}
  .lifecycle-rail button{min-width:0;flex:1;justify-content:center;padding:0 4px}
  .lifecycle-rail button b{display:none}
  .lifecycle-rail button span{font-size:9px}
  .ticker-track{display:none}
  .module-nav{top:var(--top-h);padding-top:12px}
  .page-title{min-height:134px;grid-template-columns:48px minmax(0,1fr);padding:22px 14px;column-gap:12px}
  .page-title>span{width:42px;height:42px;border-radius:12px;font-size:9px}
  .page-title h1{font-size:clamp(28px,9vw,42px)}
  .page-title p{font-size:11px;line-height:1.55}
  .command-content{padding:14px;gap:14px}
  .dashboard-view{padding:24px 14px 46px;align-items:start}
  .hero-grid{gap:30px}
  .hero-title{font-size:clamp(50px,16vw,78px);margin-top:20px}
  .hero-title .accent{margin-left:0}
  .hero-copy{font-size:14px}
  .hero-actions{display:grid;grid-template-columns:1fr}
  .hero-actions .btn{width:100%}
  .agent-lifecycle{grid-template-columns:repeat(2,1fr)}
  .agent-lifecycle>div:nth-child(2){border-right:0}
  .agent-lifecycle>div:nth-child(-n+2){border-bottom:1px solid var(--lc-border)}
  .hero-metrics{grid-template-columns:1fr 1fr}
  .hero-metrics>div:last-child{grid-column:1/-1}
  .agent-preview{min-height:545px;border-radius:17px}
  .agent-preview-top{height:62px;padding:0 13px}
  .agent-preview-body{grid-template-columns:64px minmax(0,1fr);min-height:430px}
  .preview-history{padding:10px 6px}
  .preview-history button{padding:6px;min-height:45px}
  .preview-history button small{display:none}
  .preview-history .new-thread{min-height:34px}
  .preview-thread{padding:13px;gap:10px}
  .preview-message{grid-template-columns:34px minmax(0,1fr)}
  .preview-message p{font-size:9px;max-width:100%}
  .preview-trace>div{grid-template-columns:28px minmax(0,1fr) auto;padding:9px;font-size:9px}
  .agent-preview-foot{font-size:7px;padding:0 12px}
  .integration-marquee{justify-content:flex-start;overflow-x:auto;flex-wrap:nowrap;padding-bottom:8px}
  .integration-marquee span{white-space:nowrap}
  .framework-feed,.source-list{grid-template-columns:1fr}
  .bento-grid{grid-template-columns:1fr}.bento,.bento-wide{grid-column:auto}
  .clip-copy{padding:28px 22px}.clip-copy h3{font-size:38px}
  .architecture-photo{min-height:340px}
  .agent-chat-shell{display:block;min-height:680px}
  .chat-history-panel{display:none}
  .chat-thread-panel{min-height:680px}
  .chat-thread-head{padding:0 12px}
  .icon-action{font-size:0;width:32px;height:32px;padding:0}.icon-action:before{content:"•";font-size:16px}
  .chat-message-stream{padding:18px 12px}
  .prompt-suggestions{grid-template-columns:1fr;gap:8px}
  .prompt-suggestions button{padding:12px}
  .agent-composer{margin:0 10px 10px}
  .composer-toolbar label{display:none}
  .lab-panel:not([data-panel="chat"]){padding:12px}
  .panel-grid{grid-template-columns:1fr}
  .fastext-bar{padding:4px}
  .fastext-bar button{min-width:84px;font-size:8px}
  .fastext-bar button:nth-child(4){display:none}
  #cur,#cur-ring{display:none}
}

@media(max-width:420px){
  .masthead-logo small{display:none}
  .hero-title{font-size:clamp(46px,16vw,66px)}
  .preview-status{font-size:0;padding:8px}.preview-status i{margin:0}
  .agent-preview-body{grid-template-columns:52px minmax(0,1fr)}
  .preview-history span{font-size:7px}
  .preview-thread{padding:10px}
  .preview-trace em{display:none}
  .agent-preview-foot span:last-child{display:none}
  .chat-empty-state h3{font-size:30px}
}

@media(prefers-reduced-motion:reduce){
  .agent-preview{transform:none}.ticker-text{animation:none}.feed-item:hover,.prompt-suggestions button:hover{transform:none}
}

/* Neutralize legacy V6 hero layers that conflict with the V8 layout. */
.dashboard-view:before,.dashboard-view:after{display:none!important;content:none!important}
.hero-grid{position:relative!important;inset:auto!important;width:min(1500px,100%)!important;height:auto!important;pointer-events:auto!important;opacity:1!important;background:none!important;background-image:none!important;mask-image:none!important;-webkit-mask-image:none!important}
#morphCanvas{z-index:0!important;background:transparent!important;opacity:.22!important;filter:hue-rotate(38deg) saturate(.65) brightness(.75)!important}
.hero-copy-block,.agent-preview,.integration-marquee{position:relative;z-index:3}

@media(min-width:1021px){
  .dashboard-view{grid-template-columns:1fr!important}
  .hero-title{font-size:clamp(58px,6.3vw,92px)}
  .hero-grid{grid-template-columns:minmax(0,.92fr) minmax(500px,1.08fr)!important}
  .agent-preview{min-height:590px}
}