:root {
    --tt-topnav-h: 64px;
    --bg: #0b0d14;
    --bg-2: #11141e;
    --card: #161a27;
    --card-2: #1c2132;
    --line: rgba(255, 255, 255, 0.09);
    --line-2: rgba(255, 255, 255, 0.16);
    --text: #f3f5fb;
    --text-2: rgba(243, 245, 251, 0.74);
    --text-3: rgba(243, 245, 251, 0.52);
    --gold: #f4b740;
    --gold-2: #ffd27a;
    --teal: #3dd6c6;
    --red: #ff6b6b;
    --code-bg: #090b11;
    --gap: clamp(16px, 2vw, 32px);
    --side: clamp(16px, 2.2vw, 40px);
    --radius: 14px;
    --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { overflow-x: clip; scroll-padding-top: calc(var(--tt-topnav-h) + 16px); }
body {
    margin: 0;
    background:
        radial-gradient(1200px 520px at 85% -10%, rgba(244, 183, 64, 0.10), transparent 60%),
        radial-gradient(900px 480px at -10% 10%, rgba(61, 214, 198, 0.08), transparent 60%),
        var(--bg);
    color: var(--text);
    font: 400 1rem/1.6 'Inter', system-ui, sans-serif;
}
img { display: block; max-width: 100%; height: auto; }
a { color: var(--gold-2); }
h1, h2, h3 { line-height: 1.15; margin: 0; letter-spacing: -0.01em; }
h2 { font-size: clamp(1.5rem, 2.3vw, 2.1rem); font-weight: 800; }
h3 { font-size: 1.05rem; font-weight: 700; }
p { margin: 0; }
code {
    font-family: var(--mono);
    font-size: 0.86em;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--line);
    border-radius: 5px;
    padding: 0 0.3em;
    overflow-wrap: anywhere;
}
:focus-visible { outline: 3px solid var(--gold); outline-offset: 2px; }

.nb { display: grid; gap: clamp(36px, 5vw, 72px); padding: var(--gap) var(--side) 64px; width: 100%; }
.nb > * { min-width: 0; }

/* Hero: text and screenshot side by side from 1000px, stacked on a phone. */
.nb-hero { display: grid; gap: var(--gap); grid-template-columns: minmax(0, 1fr); align-items: center; padding-top: 8px; }
@media (min-width: 1000px) { .nb-hero { grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr); } }
.nb-hero-text { display: grid; gap: 18px; min-width: 0; }
.nb-eyebrow {
    display: inline-flex; align-items: center; gap: 8px; justify-self: start;
    font-size: 0.82rem; font-weight: 600; color: var(--gold-2);
    border: 1px solid rgba(244, 183, 64, 0.35); background: rgba(244, 183, 64, 0.08);
    border-radius: 999px; padding: 6px 12px;
}
.nb-hero h1 { display: grid; gap: 6px; }
.nb-name {
    font-size: clamp(2.6rem, 6vw, 4.6rem); font-weight: 800; letter-spacing: -0.03em;
    background: linear-gradient(120deg, var(--gold-2), var(--gold) 45%, var(--teal));
    -webkit-background-clip: text; background-clip: text; color: transparent;
}
.nb-h1-sub { font-size: clamp(1.3rem, 2.4vw, 2rem); font-weight: 700; color: var(--text); }
.nb-lead { font-size: clamp(1rem, 1.25vw, 1.15rem); color: var(--text-2); max-width: 64ch; }

.nb-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.nb-btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    min-height: 46px; padding: 10px 18px; border-radius: 10px;
    border: 1px solid var(--line-2); background: var(--card);
    color: var(--text); font-weight: 600; text-decoration: none;
    transition: border-color 0.15s ease, background 0.15s ease, transform 0.15s ease;
}
.nb-btn:hover { border-color: var(--gold); background: var(--card-2); }
.nb-btn-go { background: var(--gold); border-color: var(--gold); color: #1a1205; }
.nb-btn-go:hover { background: var(--gold-2); border-color: var(--gold-2); }

.nb-stats { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; grid-template-columns: repeat(2, minmax(0, 1fr)); }
@media (min-width: 640px) { .nb-stats { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
.nb-stats li {
    display: grid; gap: 2px; padding: 12px 14px; border-radius: 12px;
    background: var(--bg-2); border: 1px solid var(--line); min-width: 0;
}
.nb-stats b { font-size: 1.35rem; font-weight: 800; color: var(--gold-2); }
.nb-stats span { font-size: 0.82rem; color: var(--text-3); }
.nb-repo { display: flex; align-items: center; gap: 8px; font-family: var(--mono); font-size: clamp(0.76rem, 3.3vw, 0.9rem); min-width: 0; }
.nb-repo a { color: var(--text-2); overflow-wrap: anywhere; }
.nb-repo a:hover { color: var(--gold-2); }

.nb-hero-shot { margin: 0; display: grid; gap: 8px; min-width: 0; }
.nb-hero-shot img, .nb-gallery img {
    border-radius: var(--radius); border: 1px solid var(--line-2);
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
}
figcaption { font-size: 0.85rem; color: var(--text-3); }

.nb-section-head { display: grid; gap: 10px; margin-bottom: var(--gap); }
.nb-sub { color: var(--text-2); max-width: 80ch; }

/* The path of one command, agent to game. */
.nb-flow {
    list-style: none; margin: 0 0 var(--gap); padding: 0;
    display: grid; gap: 10px; grid-template-columns: minmax(0, 1fr);
}
@media (min-width: 760px) { .nb-flow { grid-template-columns: repeat(5, minmax(0, 1fr)); } }
.nb-flow li {
    position: relative; display: grid; gap: 4px; padding: 14px 16px; min-width: 0;
    background: var(--bg-2); border: 1px solid var(--line); border-radius: 12px;
}
.nb-flow i { color: var(--teal); font-size: 1.1rem; }
.nb-flow b { font-family: var(--mono); font-size: 0.9rem; overflow-wrap: anywhere; }
.nb-flow span { font-size: 0.82rem; color: var(--text-3); }
@media (min-width: 760px) {
    .nb-flow li:not(:last-child)::after {
        content: ''; position: absolute; right: -9px; top: 50%; width: 8px; height: 2px;
        background: var(--gold); transform: translateY(-50%);
    }
}

.nb-agent-grid { display: grid; gap: var(--gap); grid-template-columns: minmax(0, 1fr); }
@media (min-width: 1100px) { .nb-agent-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); align-items: start; } }
.nb-agent-side { display: grid; gap: var(--gap); min-width: 0; }
.nb-panel {
    display: grid; gap: 16px; align-content: start; min-width: 0;
    padding: clamp(16px, 2vw, 26px); border-radius: var(--radius);
    background: var(--card); border: 1px solid var(--line);
}
.nb-step { display: grid; gap: 8px; min-width: 0; }
.nb-step + .nb-step { padding-top: 16px; border-top: 1px solid var(--line); }
.nb-step h3 { counter-increment: nbstep; display: flex; align-items: center; gap: 10px; }
.howto-section { counter-reset: nbstep; }
.nb-step h3::before {
    content: counter(nbstep); flex: none; display: grid; place-items: center;
    width: 28px; height: 28px; border-radius: 50%;
    background: var(--gold); color: #1a1205; font-size: 0.85rem; font-weight: 800;
}
.nb-step p { color: var(--text-2); }

.nb-code { position: relative; min-width: 0; }
.nb-code pre {
    margin: 0; padding: 14px 16px; padding-right: 56px; overflow-x: auto;
    background: var(--code-bg); border: 1px solid var(--line); border-radius: 10px;
    font: 0.84rem/1.6 var(--mono); color: #d8f3ef;
}
.nb-code pre code { background: none; border: 0; padding: 0; font-size: inherit; overflow-wrap: normal; }
.nb-code pre { white-space: pre-wrap; }
.nb-code pre code { overflow-wrap: anywhere; }
.nb-term pre { white-space: pre; }
.nb-term pre code { overflow-wrap: normal; }
@media (max-width: 700px) { .nb-code pre { font-size: 0.8rem; } }
.nb-copy {
    position: absolute; top: 4px; right: 4px; width: 44px; height: 44px;
    display: grid; place-items: center; border-radius: 8px; cursor: pointer;
    background: var(--code-bg); border: 1px solid transparent; color: var(--text-3);
}
.nb-copy:hover { color: var(--gold-2); border-color: var(--line-2); }
.nb-copy.done { color: var(--teal); }
.nb-term .nb-c { color: var(--text-3); }
.nb-term pre { padding-right: 16px; color: var(--gold-2); }

.nb-more summary {
    cursor: pointer; min-height: 44px; display: flex; align-items: center;
    color: var(--teal); font-weight: 600; font-size: 0.92rem;
}
.nb-more[open] summary { margin-bottom: 6px; }

.nb-tools { display: grid; gap: 18px; grid-template-columns: minmax(0, 1fr); }
@media (min-width: 640px) and (max-width: 1099px), (min-width: 1500px) {
    .nb-tools { grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr)); }
}
.nb-tools h3 { color: var(--gold-2); margin-bottom: 8px; font-size: 0.95rem; text-transform: uppercase; letter-spacing: 0.04em; }
.nb-tools dl { margin: 0; display: grid; gap: 6px; }
.nb-tools dt { font-family: var(--mono); font-size: 0.86rem; color: var(--teal); }
.nb-tools dd { margin: -4px 0 4px; font-size: 0.88rem; color: var(--text-2); }
.nb-note { font-size: 0.88rem; color: var(--text-3); }

.nb-warn {
    display: flex; gap: 12px; align-items: flex-start; padding: 16px 18px; border-radius: var(--radius);
    background: rgba(255, 107, 107, 0.08); border: 1px solid rgba(255, 107, 107, 0.35);
}
.nb-warn i { color: var(--red); margin-top: 4px; }
.nb-warn p { color: var(--text); font-size: 0.94rem; }

/* Features: as many columns as fit, one on a phone. */
.nb-feature-grid { display: grid; gap: 14px; grid-template-columns: repeat(auto-fill, minmax(min(100%, 330px), 1fr)); }
.nb-card {
    display: grid; gap: 12px; align-content: start; min-width: 0;
    padding: 18px 20px; border-radius: var(--radius);
    background: var(--card); border: 1px solid var(--line);
}
.nb-card-hot { border-color: rgba(244, 183, 64, 0.5); background: linear-gradient(160deg, rgba(244, 183, 64, 0.10), var(--card) 55%); }
.nb-card h3 { display: flex; align-items: center; gap: 10px; }
.nb-card h3 i { color: var(--gold); width: 1.2em; text-align: center; }
.nb-card ul, .nb-list { margin: 0; padding-left: 1.1em; display: grid; gap: 6px; }
.nb-card li, .nb-list li { color: var(--text-2); font-size: 0.92rem; }
.nb-card li::marker, .nb-list li::marker { color: var(--teal); }

.nb-gallery { display: grid; gap: var(--gap); grid-template-columns: repeat(auto-fit, minmax(min(100%, 460px), 1fr)); }
.nb-gallery figure { margin: 0; display: grid; gap: 8px; min-width: 0; }

.nb-content { display: grid; gap: clamp(32px, 4vw, 56px); }
.nb-content > * { min-width: 0; }
.nb-prose { display: grid; gap: 16px; }
.nb-columns { display: grid; gap: var(--gap); grid-template-columns: repeat(auto-fit, minmax(min(100%, 380px), 1fr)); }
.nb-columns p { color: var(--text-2); max-width: 80ch; }
.nb-columns > div { display: grid; gap: 10px; align-content: start; }
.nb-status h3 { color: var(--gold-2); }
.nb-tips { max-width: 120ch; }

.faq-section { align-items: start; column-gap: var(--gap); row-gap: 0; }
.faq-section h2 { margin-bottom: 16px; }
@media (min-width: 1200px) {
    .faq-section { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .faq-section h2 { grid-column: 1 / -1; }
}
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item summary {
    cursor: pointer; font-weight: 600; min-height: 48px; display: flex; align-items: center;
    padding: 6px 0; list-style-position: inside;
}
.faq-item summary:hover { color: var(--gold-2); }
.faq-item p { margin: 0 0 14px; color: var(--text-2); max-width: 90ch; }

.nb-cta { padding: clamp(20px, 3vw, 36px); border-radius: var(--radius); background: var(--card); border: 1px solid var(--line); }
.nb-cta p { color: var(--text-2); }

.nb-links { display: flex; flex-wrap: wrap; gap: 10px; }
.nb-links a {
    display: inline-flex; align-items: center; gap: 8px; min-height: 44px; padding: 8px 14px;
    border-radius: 10px; border: 1px solid var(--line-2); background: var(--bg-2);
    color: var(--text); text-decoration: none; font-weight: 500;
}
.nb-links a:hover { border-color: var(--gold); }
.nb-links i { color: var(--gold); }

.nb-legal { font-size: 0.82rem; color: var(--text-3); display: flex; flex-wrap: wrap; gap: 6px 14px; }
.nb-legal a { color: var(--text-2); }

@media (prefers-reduced-motion: reduce) {
    * { transition: none !important; }
}