:root {
  --bg:        #0A0A0B;
  --bg-alt:    #0F0F10;
  --surface:   #141415;
  --surface-2: #171718;
  --line:      #272729;
  --text:      #F4F4F5;
  --muted:     #8E8E93;
  --accent:    #F4F4F5;   /* primary buttons (white, like the app) */
  --on-accent: #0A0A0B;
  --ok:        #3FB27F;   /* the app's "Connected" green */
  --code:      #0D0D0E;
  --nav-bg:    rgba(10, 10, 11, .82);
  --font: "Segoe UI Variable Display", "Segoe UI", "SF Pro Display", -apple-system, "Inter", Ubuntu, Cantarell, "Noto Sans", system-ui, sans-serif;
  --mono: ui-monospace, "Cascadia Code", "SF Mono", Menlo, Consolas, "DejaVu Sans Mono", monospace;
  color-scheme: dark;
}
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #FAFAFA; --bg-alt: #F4F4F5; --surface: #FFFFFF; --surface-2: #F4F4F5;
    --line: #E4E4E7; --text: #0A0A0B; --muted: #6B6B72;
    --accent: #0A0A0B; --on-accent: #FFFFFF; --ok: #1F8F5F; --code: #F4F4F5;
    --nav-bg: rgba(250, 250, 250, .85);
    color-scheme: light;
  }
}
:root[data-theme="light"] {
  --bg: #FAFAFA; --bg-alt: #F4F4F5; --surface: #FFFFFF; --surface-2: #F4F4F5;
  --line: #E4E4E7; --text: #0A0A0B; --muted: #6B6B72;
  --accent: #0A0A0B; --on-accent: #FFFFFF; --ok: #1F8F5F; --code: #F4F4F5;
  --nav-bg: rgba(250, 250, 250, .85);
  color-scheme: light;
}

/* ==========================================================================
   BASE
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font-family: var(--font); font-size: 17px; line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; }
a { color: var(--text); text-decoration: none; }
p a, .dl-note a, .sub a { text-decoration: underline; text-decoration-color: var(--muted); text-underline-offset: 3px; }
p a:hover, .dl-note a:hover, .sub a:hover { text-decoration-color: var(--text); }
h1, h2, h3, p { margin: 0; }
h1, h2, h3 { letter-spacing: -0.025em; line-height: 1.1; font-weight: 650; }
code, .mono { font-family: var(--mono); }
:focus-visible { outline: 2px solid var(--text); outline-offset: 3px; border-radius: 6px; }
.wrap { max-width: 1160px; margin: 0 auto; padding: 0 24px; }
.skip { position: absolute; left: 12px; top: -60px; background: var(--accent); color: var(--on-accent); padding: 10px 16px; border-radius: 8px; z-index: 100; font-weight: 600; }
.skip:focus { top: 12px; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  height: 46px; padding: 0 22px; border-radius: 999px; border: 1px solid transparent;
  font: inherit; font-size: 16px; font-weight: 600; cursor: pointer; white-space: nowrap;
  transition: transform .12s ease, background-color .15s ease, border-color .15s ease;
}
.btn:active { transform: translateY(1px); }
.btn svg { width: 18px; height: 18px; flex: none; }
.btn-primary { background: var(--accent); color: var(--on-accent); }
.btn-primary:hover { background: color-mix(in srgb, var(--accent) 86%, var(--bg)); }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--muted); }
.btn-sm { height: 38px; padding: 0 16px; font-size: 15px; }

/* ==========================================================================
   NAV
   ========================================================================== */
.nav { position: sticky; top: 0; z-index: 50; background: var(--nav-bg); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-bottom: 1px solid var(--line); }
.nav .wrap { display: flex; align-items: center; height: 64px; gap: 28px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); font-weight: 700; font-size: 18px; letter-spacing: -0.02em; }
.brand img { width: 30px; height: 30px; border-radius: 8px; display: block; }
.nav-links { display: flex; gap: 24px; margin-left: 12px; }
.nav-links a { color: var(--muted); font-size: 15px; font-weight: 500; }
.nav-links a:hover { color: var(--text); }
.nav-right { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.icon-btn { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 50%; border: 1px solid var(--line); background: transparent; color: var(--muted); cursor: pointer; }
.icon-btn:hover { color: var(--text); border-color: var(--muted); }
.icon-btn svg { width: 18px; height: 18px; }
.i-sun { display: none; }
:root[data-theme="light"] .i-sun { display: block; }
:root[data-theme="light"] .i-moon { display: none; }
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) .i-sun { display: block; }
  :root:not([data-theme="dark"]) .i-moon { display: none; }
}
@media (max-width: 820px) { .nav-links { display: none; } .nav-gh span { display: none; } .nav-gh { padding: 0 11px; } }

/* ==========================================================================
   HERO
   ========================================================================== */
.hero { padding: 120px 0 128px; text-align: center; }
.hero h1 { font-size: clamp(2.6rem, 6.4vw, 5rem); letter-spacing: -0.04em; line-height: 1.02; font-weight: 700; max-width: 13em; margin: 0 auto; }
.hero .lede { margin: 28px auto 0; font-size: 1.25rem; color: var(--muted); max-width: 30em; line-height: 1.55; }
.hero-cta { margin-top: 40px; display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }
.hero-meta { margin-top: 24px; font-size: 14.5px; color: var(--muted); min-height: 22px; }
.hero-meta strong { color: var(--text); font-weight: 600; }
.hero-meta a { color: var(--muted); text-decoration: underline; text-underline-offset: 3px; }
@media (max-width: 600px) { .hero { padding: 72px 0 80px; } }

/* ==========================================================================
   SECTIONS
   ========================================================================== */
section { padding: 96px 0; }
.sec-alt { background: var(--bg-alt); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.sec-head { max-width: 44rem; margin-bottom: 48px; }
.sec-head h2 { font-size: clamp(1.9rem, 3.4vw, 2.7rem); }
.sec-head p { margin-top: 14px; color: var(--muted); font-size: 1.1rem; }

/* Feature bento */
.bento { display: grid; grid-template-columns: repeat(12, 1fr); gap: 16px; }
.tile { background: var(--surface); border: 1px solid var(--line); border-radius: 18px; padding: 28px; display: flex; flex-direction: column; gap: 10px; min-width: 0; }
.tile h3 { font-size: 1.25rem; }
.tile p { color: var(--muted); font-size: 16px; }
.tile .vis { margin-top: auto; padding-top: 18px; }
.t-privacy { grid-column: span 7; grid-row: span 2; background: var(--surface-2); }
.t-stream { grid-column: span 5; }
.t-vision { grid-column: span 5; }
.t-files, .t-history, .t-reason { grid-column: span 4; }
@media (max-width: 900px) { .t-privacy, .t-stream, .t-vision, .t-files, .t-history, .t-reason { grid-column: span 12; grid-row: auto; } }
.diagram { width: 100%; height: auto; display: block; }
.diagram text { font-family: var(--font); fill: var(--text); font-size: 13px; }
.diagram .dim { fill: var(--muted); font-size: 12px; }
.diagram .box { fill: var(--surface); stroke: var(--line); stroke-width: 1.5; }
.diagram .flow { stroke: var(--ok); stroke-width: 2; fill: none; stroke-linecap: round; stroke-linejoin: round; }
.diagram .cut { stroke: var(--muted); stroke-width: 1.5; stroke-dasharray: 4 5; fill: none; }
.diagram .net { fill: none; stroke: var(--line); stroke-width: 1.5; stroke-dasharray: 4 4; }
.diagram .x { stroke: #E5736B; stroke-width: 2.5; stroke-linecap: round; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { border: 1px solid var(--line); border-radius: 999px; padding: 4px 12px; font-size: 14px; background: var(--bg-alt); }
.chip.m { font-family: var(--mono); font-size: 13.5px; }
.stop-row { display: flex; align-items: center; gap: 12px; }
.stop-btn { display: inline-flex; align-items: center; gap: 8px; border: 1px solid var(--line); border-radius: 999px; padding: 6px 14px; font-size: 14px; background: var(--bg-alt); }
.stop-btn i { width: 10px; height: 10px; background: var(--text); border-radius: 2px; display: block; }
.mini-list { display: grid; gap: 6px; }
.mini-list .r { padding: 8px 12px; border-radius: 10px; background: var(--bg-alt); border: 1px solid var(--line); font-size: 14px; color: var(--muted); }
.mini-list .r.on { color: var(--text); border-color: var(--muted); }
details.reason { background: var(--bg-alt); border: 1px solid var(--line); border-radius: 12px; padding: 10px 14px; font-size: 14.5px; }
details.reason summary { cursor: pointer; color: var(--text); font-weight: 600; list-style: none; display: flex; align-items: center; gap: 8px; }
details.reason summary::-webkit-details-marker { display: none; }
details.reason summary::before { content: ""; width: 7px; height: 7px; border-right: 2px solid var(--muted); border-bottom: 2px solid var(--muted); transform: rotate(-45deg); transition: transform .15s; }
details.reason[open] summary::before { transform: rotate(45deg); }
details.reason p { margin-top: 8px; color: var(--muted); font-size: 14.5px; }

.also { margin-top: 56px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 0 40px; }
.also div { border-top: 1px solid var(--line); padding: 20px 0 28px; }
.also h3 { font-size: 1.05rem; letter-spacing: -0.01em; }
.also p { margin-top: 6px; color: var(--muted); font-size: 15.5px; }
@media (max-width: 800px) { .also { grid-template-columns: 1fr; } }

/* Download */
.dl-head { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 20px; margin-bottom: 40px; }
.dl-head .sec-head { margin-bottom: 0; }
.rel-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; font-size: 15px; color: var(--muted); }
.rel-meta a { color: var(--muted); text-decoration: underline; text-underline-offset: 3px; }
.rel-meta a:hover { color: var(--text); }
.badge { background: color-mix(in srgb, var(--ok) 14%, transparent); color: var(--ok); border: 1px solid color-mix(in srgb, var(--ok) 40%, transparent); border-radius: 999px; padding: 3px 12px; font-weight: 600; font-size: 14px; font-family: var(--mono); }
.os-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 800px) { .os-grid { grid-template-columns: 1fr; } }
.os { background: var(--surface); border: 1px solid var(--line); border-radius: 18px; padding: 26px; }
.os.you { border-color: color-mix(in srgb, var(--ok) 50%, var(--line)); }
.os-title { display: flex; align-items: center; gap: 12px; margin-bottom: 4px; }
.os-title svg { width: 26px; height: 26px; color: var(--text); }
.os-title h3 { font-size: 1.4rem; }
.os-title .you-tag { margin-left: auto; font-size: 13px; color: var(--ok); font-weight: 600; display: none; }
.os.you .you-tag { display: block; }
.os > p { color: var(--muted); font-size: 15px; margin-bottom: 18px; }
.dl-list { display: grid; gap: 8px; }
.dl-row { display: flex; align-items: center; gap: 14px; padding: 12px 14px; border: 1px solid var(--line); border-radius: 12px; background: var(--bg-alt); color: var(--text); transition: border-color .15s; }
.dl-row:hover { border-color: var(--muted); }
.dl-row .nm { flex: 1; min-width: 0; }
.dl-row .nm b { display: block; font-size: 15.5px; font-weight: 600; }
.dl-row .nm small { display: block; color: var(--muted); font-size: 12.5px; font-family: var(--mono); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.dl-row .sz { color: var(--muted); font-size: 13.5px; text-align: right; white-space: nowrap; }
.dl-row .go { width: 34px; height: 34px; border-radius: 50%; background: var(--accent); color: var(--on-accent); display: grid; place-items: center; flex: none; }
.dl-row .go svg { width: 16px; height: 16px; }
.dl-note { margin-top: 16px; color: var(--muted); font-size: 15px; }
.steps { margin-top: 56px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; counter-reset: s; }
@media (max-width: 800px) { .steps { grid-template-columns: 1fr; gap: 28px; } }
.step { counter-increment: s; border-top: 1px solid var(--line); padding-top: 20px; }
.step::before { content: counter(s); display: grid; place-items: center; width: 30px; height: 30px; border-radius: 50%; background: var(--surface-2); border: 1px solid var(--line); font-weight: 700; font-size: 14px; margin-bottom: 14px; }
.step h3 { font-size: 1.15rem; letter-spacing: -0.01em; }
.step p { margin-top: 6px; color: var(--muted); font-size: 15.5px; }
.cmd { margin-top: 12px; display: flex; align-items: center; gap: 8px; background: var(--code); border: 1px solid var(--line); border-radius: 12px; padding: 6px 6px 6px 14px; }
.cmd code { flex: 1; font-size: 14px; overflow-x: auto; white-space: nowrap; }
.copy { border: 1px solid var(--line); background: var(--surface); color: var(--text); border-radius: 999px; font: inherit; font-size: 13px; font-weight: 600; padding: 5px 14px; cursor: pointer; }
.copy:hover { border-color: var(--muted); }

/* Roadmap + FAQ */
.rf-grid { display: block; }
.faq { max-width: 820px; margin: 0 auto; }
@media (max-width: 900px) { .rf-grid { grid-template-columns: 1fr; gap: 56px; } }
.rf-grid h2 { font-size: clamp(1.6rem, 2.6vw, 2.1rem); margin-bottom: 8px; }
.rf-grid .sub { color: var(--muted); margin-bottom: 24px; font-size: 16px; }
.roadmap { list-style: none; margin: 0; padding: 0; }
.roadmap li { display: flex; align-items: center; gap: 12px; padding: 12px 0; border-top: 1px solid var(--line); font-size: 16px; }
.roadmap li::before { content: ""; width: 10px; height: 10px; border: 2px dashed var(--muted); border-radius: 50%; flex: none; }
.roadmap li:last-child { border-bottom: 1px solid var(--line); }
.faq details { border-top: 1px solid var(--line); padding: 18px 0; }
.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; font-weight: 600; font-size: 1.05rem; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--muted); font-weight: 400; font-size: 1.4rem; line-height: 1; }
.faq details[open] summary::after { content: "–"; }
.faq details p { margin-top: 10px; color: var(--muted); font-size: 16px; max-width: 38em; }
.faq code, .dl-note code { background: var(--code); border: 1px solid var(--line); border-radius: 6px; padding: 1px 7px; font-size: 13.5px; color: var(--text); }

/* Footer */
footer { border-top: 1px solid var(--line); padding: 56px 0 40px; background: var(--bg); }
.foot-grid { display: grid; grid-template-columns: 5fr 2fr 2fr; gap: 40px; }
@media (max-width: 800px) { .foot-grid { grid-template-columns: 1fr 1fr; } .foot-grid > :first-child { grid-column: span 2; } }
footer p.tag { color: var(--muted); margin-top: 12px; max-width: 26em; font-size: 15px; }
footer h4 { margin: 0 0 12px; font-size: 14.5px; font-weight: 650; }
footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
footer ul a { color: var(--muted); font-size: 15px; }
footer ul a:hover { color: var(--text); }
.legal { margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13.5px; display: grid; gap: 6px; }

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