:root {
  --bg: #f4f4f2; --surface: #fff; --ink: #1a1c22; --ink-2: #4e5361; --ink-3: #7a7f8c; --line: #e2e2de;
  --owner: #0b6b7d; --guest: #5b39c9; --control: #c2610a;
  --con-bg: #0c0e12; --con-bg-2: #151821; --con-line: #2a2e3a; --con-ink: #eceef3; --con-ink-2: #c3c8d4; --con-dim: #8f95a3;
  --con-owner: #7fe0f0; --con-guest: #d0bcff; --con-ok: #7ddb9d; --con-bad: #ff9b9b; --con-warn: #ffc46b;
  --mono: 'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  --sans: 'IBM Plex Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) { --bg: #16181d; --surface: #1e2128; --ink: #eef0f5; --ink-2: #c1c6d2; --ink-3: #8d93a2; --line: #333744; --owner: #7fd0e0; --guest: #b9a3f2; --control: #f0a24a; }
}
:root[data-theme="dark"] { --bg: #16181d; --surface: #1e2128; --ink: #eef0f5; --ink-2: #c1c6d2; --ink-3: #8d93a2; --line: #333744; --owner: #7fd0e0; --guest: #b9a3f2; --control: #f0a24a; }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: var(--sans); font-size: 17px; line-height: 1.6; -webkit-font-smoothing: antialiased; }
a { color: inherit; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
@media (max-width: 640px) { .wrap { padding: 0 16px; } }

nav { display: flex; align-items: center; justify-content: space-between; padding: 20px 0; }
.logo { display: flex; align-items: center; gap: 10px; font-family: var(--mono); font-weight: 600; font-size: 16px; text-decoration: none; }
.logo i { width: 30px; height: 30px; border-radius: 7px; background: var(--ink); color: var(--bg); display: grid; place-items: center; font-style: normal; font-size: 13px; }
nav .links { display: flex; gap: 22px; font-size: 15px; color: var(--ink-2); }
nav .links a { text-decoration: none; }
nav .links a:hover { color: var(--ink); }
@media (max-width: 640px) { nav .links a:not(.gh) { display: none; } }

.hero { padding: 48px 0 72px; display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 56px; align-items: center; }
@media (max-width: 960px) { .hero { grid-template-columns: 1fr; gap: 40px; padding-top: 24px; } }
h1 { font-size: clamp(36px, 5vw, 54px); line-height: 1.06; letter-spacing: -0.025em; margin: 0 0 20px; font-weight: 600; }
.lede { font-size: 19px; color: var(--ink-2); margin: 0 0 32px; max-width: 34ch; }
.install { display: flex; align-items: center; gap: 12px; background: var(--con-bg); color: var(--con-ink); font-family: var(--mono); font-size: 16px; padding: 14px 14px 14px 18px; border-radius: 10px; max-width: 420px; }
.install .p { color: var(--con-owner); }
.install code { flex: 1; }
.install button { font: 500 13px var(--sans); background: transparent; color: var(--con-ink-2); border: 1px solid var(--con-line); border-radius: 7px; padding: 6px 12px; cursor: pointer; }
.install button:hover { color: var(--con-ink); border-color: var(--con-dim); }
.req { font-size: 14px; color: var(--ink-3); margin-top: 12px; }

/* the demo: owner terminal + guest browser */
.demo { position: relative; padding-bottom: 56px; }
.term, .browser { border-radius: 12px; overflow: hidden; box-shadow: 0 1px 2px rgba(0,0,0,0.08), 0 24px 48px -24px rgba(0,0,0,0.45); }
.chrome { display: flex; align-items: center; gap: 6px; padding: 10px 12px; font: 12px var(--mono); }
.chrome b { width: 10px; height: 10px; border-radius: 50%; background: #ff5f57; } .chrome b + b { background: #febc2e; } .chrome b + b + b { background: #28c840; }
.chrome span { margin-left: 10px; color: var(--con-dim); }
.term { width: 78%; background: var(--con-bg); color: var(--con-ink-2); font: 13px/1.65 var(--mono); }
.term .chrome { background: #1a1d26; }
.term pre { margin: 0; padding: 14px 18px 18px; white-space: pre-wrap; }
.term .u { color: var(--con-owner); } .term .g { color: var(--con-ok); } .term .w { color: var(--con-warn); } .term .d { color: var(--con-dim); } .term .b { color: var(--con-ink); font-weight: 600; }
.browser { position: absolute; right: 0; bottom: 0; width: 74%; background: var(--con-bg); font-family: var(--mono); font-size: 12.5px; color: var(--con-ink); }
.browser .chrome { background: #e9e9e6; } .browser .chrome span { color: #6b6f7a; background: #fff; border-radius: 6px; padding: 2px 10px; flex: 1; margin-left: 12px; }
.band { background: #5b39c9; color: #fff; font: 500 12.5px var(--sans); padding: 8px 14px; display: flex; justify-content: space-between; align-items: center; gap: 10px; }
.band em { font-style: normal; background: #fff; color: #1a1c22; border-radius: 6px; padding: 3px 9px; white-space: nowrap; }
.feed { padding: 12px 14px 14px; display: grid; gap: 9px; }
.line { display: grid; grid-template-columns: 64px 1fr; gap: 10px; }
.line .who { text-align: right; color: #b0b6c2; }
.line.guest { background: rgba(208,188,255,0.1); border-radius: 5px; padding: 4px 6px 4px 0; }
.line.guest .who { color: var(--con-guest); }
.line .act { color: var(--con-ink-2); } .line .act .x { color: var(--con-bad); }
.caret { display: inline-block; width: 7px; height: 14px; background: var(--con-guest); vertical-align: -2px; animation: caret 1s steps(1) infinite; }
@keyframes caret { 50% { opacity: 0; } }
@media (prefers-reduced-motion: reduce) { .caret { animation: none; } }
@media (max-width: 640px) {
  .term { width: 100%; } .browser { position: relative; width: 100%; margin-top: -24px; margin-left: 0; }
  .demo { padding-bottom: 0; }
}

section { padding: 72px 0; border-top: 1px solid var(--line); }
h2 { font-size: 30px; letter-spacing: -0.015em; line-height: 1.2; margin: 0 0 12px; font-weight: 600; }
.sub { color: var(--ink-2); margin: 0 0 40px; max-width: 60ch; }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; counter-reset: step; }
@media (max-width: 860px) { .steps { grid-template-columns: 1fr; } }
.step { counter-increment: step; }
.step::before { content: counter(step); display: grid; place-items: center; width: 32px; height: 32px; border-radius: 50%; border: 1.5px solid var(--ink); font: 600 14px var(--mono); margin-bottom: 14px; }
.step h3 { font-size: 18px; margin: 0 0 6px; }
.step p { margin: 0 0 12px; color: var(--ink-2); font-size: 16px; }
.step code, .faq code { font: 14px var(--mono); background: var(--surface); border: 1px solid var(--line); border-radius: 6px; padding: 2px 7px; }

.modes { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--line); border-radius: 12px; overflow: hidden; background: var(--surface); }
@media (max-width: 860px) { .modes { grid-template-columns: 1fr; } }
.mode { padding: 24px; }
.mode + .mode { border-left: 1px solid var(--line); }
@media (max-width: 860px) { .mode + .mode { border-left: 0; border-top: 1px solid var(--line); } }
.mode h3 { margin: 0 0 4px; font-size: 18px; display: flex; align-items: center; gap: 8px; }
.mode h3 i { width: 10px; height: 10px; border-radius: 50%; }
.mode .tag { color: var(--ink-3); font-size: 14px; margin-bottom: 14px; }
.mode ul { margin: 0; padding-left: 18px; color: var(--ink-2); font-size: 15.5px; }
.mode li { margin-bottom: 4px; }

.safety { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px 48px; }
@media (max-width: 760px) { .safety { grid-template-columns: 1fr; } }
.safety div { padding-left: 16px; border-left: 2px solid var(--owner); }
.safety b { display: block; font-weight: 600; }
.safety span { color: var(--ink-2); font-size: 15.5px; }

.faq { display: grid; gap: 22px; max-width: 760px; }
.faq b { display: block; font-weight: 600; margin-bottom: 2px; }
.faq span { color: var(--ink-2); font-size: 16px; }

.cta { text-align: center; }
.cta h2 { margin-bottom: 24px; }
.cta .install { margin: 0 auto; text-align: left; }
footer { padding: 32px 0 48px; color: var(--ink-3); font-size: 14px; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; border-top: 1px solid var(--line); }
button:focus-visible, a:focus-visible { outline: 2px solid var(--owner); outline-offset: 2px; }

/* footer + shared bits */
footer .host a { color: var(--ink-2); }
footer .host a:hover { color: var(--ink); }