:root {
  color-scheme: light dark;
  --bg: #fff; --bg2: #f5f5f7; --ink: #1d1d1f; --ink2: #6e6e73; --ink3: #6e6e73; --accent: #0071e3; --btn: #0071e3; --accent-ink: #fff;
  --fill: rgba(0,0,0,.055); --fill2: rgba(0,0,0,.09); --glass: rgba(255,255,255,.72);
  --safe: #1f8a3a; --caution: #b25000; --crit: #d70015; --ai: #7d5cff;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Helvetica Neue", system-ui, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, monospace;
  --spring: cubic-bezier(.32,1.2,.5,1); --ease: cubic-bezier(.25,.1,.25,1);
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #000; --bg2: #101012; --ink: #f5f5f7; --ink2: #a1a1a6; --ink3: #8e8e93; --accent: #2997ff;
    --fill: rgba(255,255,255,.08); --fill2: rgba(255,255,255,.13); --glass: rgba(22,22,24,.72); --safe: #30d158; --caution: #ff9f0a; --crit: #ff453a; --ai: #a58bff; }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 64px; -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 17px/1.5 var(--font); -webkit-font-smoothing: antialiased; overflow-x: hidden; }
h1, h2, h3, p, ul, ol, dl, dd, pre { margin: 0; }
a { color: inherit; text-decoration: none; }
code { font: .88em var(--mono); background: var(--fill); padding: 1px 6px; border-radius: 6px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 8px; }

.wrap { width: min(1080px, 100% - 48px); margin-inline: auto; }
.center { text-align: center; }
h1 { font-size: clamp(44px, 8.2vw, 92px); line-height: 1.02; letter-spacing: -.045em; font-weight: 700; }
h2 { font-size: clamp(32px, 5.2vw, 62px); line-height: 1.06; letter-spacing: -.04em; font-weight: 700; }
h3 { font-size: 19px; letter-spacing: -.015em; font-weight: 600; }
.statement { font-size: clamp(18px, 2.2vw, 22px); line-height: 1.45; color: var(--ink2); max-width: 700px; margin-top: 22px; }
.center .statement { margin-inline: auto; }
.fine { color: var(--ink3); font-size: 14px; margin-top: 18px; }

/* nav: plain Apple-style bar */
.nav { position: fixed; inset: 0 0 auto 0; z-index: 50; height: 52px; background: var(--glass); backdrop-filter: saturate(180%) blur(22px); -webkit-backdrop-filter: saturate(180%) blur(22px); transition: box-shadow .3s; }
.nav.scrolled { box-shadow: 0 1px 0 var(--fill2); }
.nav-in { width: min(1080px, 100% - 48px); height: 100%; margin-inline: auto; display: flex; align-items: center; gap: 28px; }
.brand { display: flex; align-items: center; gap: 9px; font-weight: 600; font-size: 17px; letter-spacing: -.02em; }
.brand svg { width: 24px; height: 24px; }
.links { display: flex; gap: 26px; margin-left: auto; font-size: 13px; color: var(--ink2); }
.links a:hover { color: var(--ink); } .links a { transition: color .2s; }
.nav-cta { display: flex; align-items: center; gap: 16px; font-size: 13px; }
.link-plain { color: var(--ink2); } .link-plain:hover { color: var(--ink); }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border-radius: 99px; background: var(--btn, var(--accent)); color: var(--accent-ink); font-weight: 500; letter-spacing: -.01em; padding: 12px 22px; transition: transform .35s var(--spring), filter .2s, background .2s; will-change: transform; }
.btn:hover { filter: brightness(1.08); transform: scale(1.03); } .btn:active { transform: scale(.96); transition-duration: .1s; }
.btn svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; } .btn svg.fill { fill: currentColor; stroke: none; }
.btn-lg { padding: 15px 28px; font-size: 17px; } .btn-sm { padding: 5px 14px; font-size: 13px; }
.btn-ghost { background: var(--fill); color: var(--ink); } .btn-ghost:hover { background: var(--fill2); filter: none; }
.cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-top: 34px; } .cta.left { justify-content: flex-start; }

/* reveal */
.js .reveal { opacity: 0; transform: translateY(26px) scale(.99); transition: opacity .9s var(--ease), transform 1.1s var(--spring); transition-delay: var(--d, 0s); }
.js .reveal.in { opacity: 1; transform: none; }

/* hero */
.hero { position: relative; overflow: hidden; padding: 128px 0 0; }
.hero #hero-art { position: absolute; left: 0; top: 0; width: 100%; height: 860px; z-index: 0; pointer-events: none; -webkit-mask-image: linear-gradient(to right, #000 0%, #000 6%, transparent 26%, transparent 74%, #000 94%, #000 100%), linear-gradient(#000 40%, transparent 98%); mask-image: linear-gradient(to right, #000 0%, #000 6%, transparent 26%, transparent 74%, #000 94%, #000 100%), linear-gradient(#000 40%, transparent 98%); -webkit-mask-composite: source-in; mask-composite: intersect; }
.hero .wrap, .hero .stage { position: relative; z-index: 1; }
.hero h1 { max-width: 900px; margin-inline: auto; }
.stage { width: min(1040px, 100% - 32px); margin: 70px auto 0; perspective: 1600px; }
.sec { padding: clamp(80px, 11vw, 150px) 0; } .tone { background: var(--bg2); }
.close { position: relative; overflow: hidden; } .close #close-art { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 0; opacity: .8; -webkit-mask-image: linear-gradient(to right, #000 0%, transparent 30%, transparent 70%, #000 100%); mask-image: linear-gradient(to right, #000 0%, transparent 30%, transparent 70%, #000 100%); } .close .wrap { position: relative; z-index: 1; }

/* the app mock: a real interface fragment */
.mock { --m-bg: #f5f5f7; --m-card: #fff; --m-side: rgba(240,240,244,.9); --m-ink: #1d1d1f; --m-ink2: #6e6e73; --m-hover: rgba(0,0,0,.05); --m-accent: #0a84ff; --m-safe: #1f8a3a;
  position: relative; border-radius: 14px; background: var(--m-bg); color: var(--m-ink); font-size: 12px; line-height: 1.4; overflow: hidden; text-align: left;
  box-shadow: 0 0 0 .5px rgba(0,0,0,.18), 0 30px 80px rgba(0,0,0,.28), 0 8px 24px rgba(0,0,0,.14); transform-style: preserve-3d; transition: transform .25s ease-out; }
@media (prefers-color-scheme: dark) { .mock { --m-bg: #141416; --m-card: #232326; --m-side: rgba(40,40,44,.9); --m-ink: #f5f5f7; --m-ink2: #a1a1a6; --m-hover: rgba(255,255,255,.07); --m-safe: #30d158; box-shadow: 0 0 0 .5px rgba(255,255,255,.14), 0 30px 80px rgba(0,0,0,.6); } }
.mock-bar { height: 34px; display: flex; align-items: center; gap: 8px; padding: 0 14px; background: var(--m-side); } .mock-bar i { width: 11px; height: 11px; border-radius: 50%; background: #ff5f57; } .mock-bar i:nth-child(2) { background: #febc2e; } .mock-bar i:nth-child(3) { background: #28c840; }
.mock-body { display: grid; grid-template-columns: 200px 1fr; min-height: 460px; }
.m-side { background: var(--m-side); padding: 6px 10px 14px; }
.m-brand { display: flex; gap: 8px; align-items: center; font-weight: 600; font-size: 14px; padding: 4px 8px 12px; } .m-brand svg { width: 20px; height: 20px; }
.m-h { font-size: 10px; font-weight: 600; color: var(--m-ink2); padding: 12px 8px 4px; }
.m-nav { display: flex; align-items: center; gap: 8px; padding: 5px 8px; border-radius: 7px; } .m-nav.on { background: color-mix(in srgb, var(--m-accent) 16%, transparent); font-weight: 600; }
.m-nav b { width: 16px; height: 16px; border-radius: 5px; background: var(--c); flex: none; } .m-nav em { margin-left: auto; font-style: normal; color: var(--m-ink2); }
.m-main { padding: 18px 20px 20px; display: flex; flex-direction: column; gap: 12px; }
.m-title { font-size: 22px; font-weight: 700; letter-spacing: -.03em; }
.m-grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: 12px; }
.m-card { background: var(--m-card); border-radius: 12px; padding: 14px 16px; } .m-k { font-size: 11px; font-weight: 600; color: var(--m-ink2); margin-bottom: 8px; }
.m-donut-row { display: flex; align-items: center; gap: 18px; }
.m-donut { position: relative; width: 120px; height: 120px; flex: none; } .m-donut svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.m-donut circle { fill: none; stroke-width: 14; } .m-donut .t { stroke: var(--m-hover); } .m-donut .s { stroke: var(--c); stroke-dasharray: 0 302; transition: stroke-dasharray 1.4s var(--spring), stroke-dashoffset 1.4s var(--spring); }
.m-c { position: absolute; inset: 0; display: grid; place-content: center; text-align: center; } .m-c b { font-size: 19px; letter-spacing: -.03em; line-height: 1.05; } .m-c span { font-size: 9px; color: var(--m-ink2); }
.m-leg { list-style: none; padding: 0; margin: 0; display: grid; gap: 5px; flex: 1; color: var(--m-ink2); } .m-leg li { display: flex; align-items: center; gap: 7px; } .m-leg li::before { content: ''; width: 7px; height: 7px; border-radius: 50%; background: var(--c); } .m-leg b { margin-left: auto; color: var(--m-ink); font-weight: 500; }
.m-safe { background: color-mix(in srgb, var(--m-safe) 12%, var(--m-card)); } .m-big b { font-size: 34px; letter-spacing: -.04em; color: var(--m-safe); font-weight: 700; } .m-safe p { color: var(--m-ink2); margin: 4px 0 12px; }
.m-btn { display: inline-block; background: var(--m-accent); color: #fff; padding: 4px 12px; border-radius: 7px; font-weight: 500; }
.m-bars { display: grid; gap: 8px; } .m-bars .m-k { margin-bottom: 2px; }
.mb { display: grid; grid-template-columns: 90px 1fr 46px; gap: 10px; align-items: center; } .mb span { color: var(--m-ink2); } .mb b { text-align: right; font-weight: 500; }
.mb i { height: 8px; border-radius: 4px; background: var(--m-hover); position: relative; overflow: hidden; } .mb i::after { content: ''; position: absolute; inset: 0; width: 0; border-radius: 4px; background: var(--c); transition: width 1.3s var(--spring); } .mock.live .mb i::after { width: var(--w); }
.mock-sheet { position: absolute; right: 22px; bottom: 22px; width: min(330px, 70%); border-radius: 14px; padding: 14px 16px; background: var(--m-card); box-shadow: 0 0 0 .5px rgba(0,0,0,.14), 0 20px 50px rgba(0,0,0,.3); opacity: 0; transform: translateY(24px) scale(.94); transition: opacity .6s var(--ease), transform .9s var(--spring); }
.mock.live .mock-sheet { opacity: 1; transform: none; transition-delay: 1.8s; }
.ms-h { color: #d70015; font-weight: 600; font-size: 11px; } .ms-t { font-weight: 600; font-size: 14px; margin: 3px 0 4px; letter-spacing: -.01em; } .ms-s { color: var(--m-ink2); } .ms-r { display: flex; justify-content: space-between; margin-top: 10px; padding-top: 9px; color: var(--m-ink2); background: linear-gradient(var(--m-hover), var(--m-hover)) top / 100% 1px no-repeat; } .ms-r b { color: var(--m-ink); }
@media (prefers-color-scheme: dark) { .ms-h { color: #ff453a; } }
@media (max-width: 820px) { .mock-body { grid-template-columns: 1fr; } .m-side { display: none; } .m-grid { grid-template-columns: 1fr; } .mock-sheet { position: relative; right: auto; bottom: auto; margin: 0 16px 16px; width: auto; } }

/* problem */
.compare { display: grid; grid-template-columns: 1fr 1.25fr; gap: 16px; margin-top: 56px; }
.panel { background: var(--bg2); border-radius: 24px; padding: 28px; } .tone .panel { background: var(--bg); }
.panel h3 { margin-bottom: 14px; } .panel p { color: var(--ink2); font-size: 16px; margin-top: 10px; } .panel p.note { font-size: 14px; color: var(--ink3); margin-top: 16px; }
.panel-strong { background: color-mix(in srgb, var(--accent) 9%, var(--bg)); } .tone .panel-strong { background: color-mix(in srgb, var(--accent) 9%, var(--bg)); }
.plain-list { list-style: none; padding: 0; display: grid; gap: 10px; } .plain-list li { display: flex; justify-content: space-between; color: var(--ink2); } .plain-list b { color: var(--ink); font-weight: 600; font-variant-numeric: tabular-nums; }
.bar-list { list-style: none; padding: 0; display: grid; gap: 16px; }
.bar-list li { display: grid; grid-template-columns: 1fr auto; gap: 4px 12px; font-size: 15px; } .bar-list b { font-weight: 600; font-variant-numeric: tabular-nums; }
.bar-list i { grid-column: 1 / -1; height: 8px; border-radius: 4px; background: var(--fill); position: relative; overflow: hidden; } .bar-list i::after { content: ''; position: absolute; inset: 0; width: 0; background: var(--accent); border-radius: 4px; transition: width 1.3s var(--spring); } .bar-list.in i::after { width: var(--w); }
.bar-list span { grid-row: 1; }

/* where */
.two { display: grid; grid-template-columns: 1fr 1.1fr; gap: clamp(32px, 6vw, 90px); align-items: start; }
.where { display: grid; gap: 4px; } .where div { position: relative; padding: 14px 0 14px 28px; } .where div::before { content: ''; position: absolute; left: 0; top: 22px; width: 12px; height: 12px; border-radius: 50%; background: var(--c); } .where dt { font-weight: 600; letter-spacing: -.01em; } .where dd { color: var(--ink2); font-size: 16px; }

/* numbers */
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 56px; } .grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 16px; }
.code { margin-top: 16px; background: var(--fill); border-radius: 14px; padding: 14px 16px; overflow-x: auto; font: 13px/1.6 var(--mono); color: var(--ink); } .code code { background: none; padding: 0; font: inherit; }
.facts { display: flex; flex-wrap: wrap; gap: 24px 64px; margin-top: 60px; } .facts b { display: block; font-size: clamp(40px, 6vw, 68px); line-height: 1; letter-spacing: -.045em; font-weight: 700; font-variant-numeric: tabular-nums; } .facts span { display: block; color: var(--ink2); font-size: 15px; margin-top: 8px; max-width: 200px; } .facts.tight { margin-top: 22px; gap: 18px 36px; } .facts.tight b { font-size: 38px; }

/* risk */
.risks { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 56px; }
.risk { border-radius: 24px; padding: 28px; background: color-mix(in srgb, var(--c) 9%, var(--bg)); } .risk h3 { font-size: 26px; letter-spacing: -.03em; color: var(--c); margin-bottom: 10px; } .risk p { color: var(--ink2); font-size: 16px; }
.risk.safe { --c: var(--safe); } .risk.caution { --c: var(--caution); } .risk.critical { --c: var(--crit); } .wide { margin-top: 16px; }

/* smart scan: always dark */
.dark { background: #000; color: #f5f5f7; --ink: #f5f5f7; --ink2: #a1a1a6; --ink3: #6e6e73; --fill: rgba(255,255,255,.09); --fill2: rgba(255,255,255,.14); --bg: #000; --bg2: #151517; --accent: #2997ff; }
.dark .panel, .dk { background: #161618; }
.pipe { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 56px; }
.pipe li { position: relative; display: flex; flex-direction: column; gap: 6px; padding: 22px; border-radius: 22px; background: #161618; transition: background .6s var(--ease), transform .8s var(--spring); }
.pipe li p { color: var(--ink2); font-size: 15px; flex: 1; } .pipe li.lit { background: #212126; transform: translateY(-4px); }
.who { align-self: flex-start; margin-top: 8px; font-size: 12px; font-weight: 600; padding: 2px 11px; border-radius: 99px; } .who.local { background: rgba(255,255,255,.1); color: #d1d1d6; } .who.ai { background: rgba(165,139,255,.2); color: #c3b2ff; }
.check { list-style: none; padding: 0; display: grid; gap: 12px; margin-top: 4px; } .check li { position: relative; padding-left: 30px; color: var(--ink2); font-size: 16px; }
.check li::before { content: ''; position: absolute; left: 2px; top: 6px; width: 12px; height: 7px; border: solid var(--safe); border-width: 0 0 2.5px 2.5px; transform: rotate(-45deg); }
.check b { color: var(--ink); font-weight: 600; } .check.big { gap: 22px; } .check.big li { font-size: 18px; }

/* stack, install */
.tags { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: 10px; margin-top: 44px; max-width: 760px; } .center .tags { margin-inline: auto; justify-content: center; }
.tags li { background: var(--bg); padding: 9px 18px; border-radius: 99px; font-size: 16px; font-weight: 500; transition: transform .4s var(--spring), background .2s; } .tags li:hover { transform: translateY(-3px) scale(1.05); background: var(--fill2); }
.steps { display: grid; gap: 18px; padding-left: 22px; margin-top: 30px; font-size: 18px; } .steps li { padding-left: 6px; } .steps li::marker { font-weight: 600; color: var(--ink2); }
.side { display: grid; gap: 16px; } .side .panel { padding: 24px; }
.foot { padding: 28px 0 40px; color: var(--ink3); font-size: 13px; } .foot .wrap { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; }

@media (max-width: 900px) {
  .links { display: none; } .nav-cta { margin-left: auto; }
  .compare, .two, .grid3, .grid2, .risks { grid-template-columns: 1fr; } .pipe { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) { .pipe { grid-template-columns: 1fr; } .hero { padding-top: 100px; } .nav-cta .link-plain { display: none; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .js .reveal { opacity: 1; transform: none; transition: none; } *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; } }

/* fixes from screenshots */
.m-main { position: relative; }
@media (min-width: 821px) { .m-bars { width: calc(100% - 350px); } .mock-sheet { width: 320px; } }
.compare { align-items: start; }
.bar-list b { grid-row: 1; grid-column: 2; }
.bar-list i { grid-row: 2; }

/* phone: rings go below the text; nav follows the section underneath it */
.nav { color: var(--ink); transition: background .3s, box-shadow .3s; }
.nav.on-dark { --glass: rgba(20,20,22,.72); --ink: #f5f5f7; --ink2: #a1a1a6; --fill2: rgba(255,255,255,.16); }
@media (max-width: 700px) {
  .hero #hero-art { -webkit-mask-image: linear-gradient(transparent 0%, transparent 60%, #000 80%, transparent 100%); mask-image: linear-gradient(transparent 0%, transparent 60%, #000 80%, transparent 100%); -webkit-mask-composite: source-over; mask-composite: add; }
  .facts { gap: 24px 36px; }
}

.brand img { width: 26px; height: 26px; display: block; } .m-brand img { width: 22px; height: 22px; display: block; }

/* ---------- audit fixes ---------- */
code { color: var(--ink); }
.dark code { color: #f5f5f7; }
/* grid items may shrink below their content width: this removed the 82px sideways scroll on phones */
.two > *, .grid3 > *, .grid2 > *, .compare > *, .risks > *, .pipe > *, .side > *, .facts > * { min-width: 0; }
.code { max-width: 100%; }
.steps li, .check li, .panel p { overflow-wrap: anywhere; }
.skip { position: fixed; left: 12px; top: -60px; z-index: 100; background: var(--ink); color: var(--bg); padding: 10px 18px; border-radius: 99px; font-size: 14px; transition: top .2s; }
.skip:focus { top: 12px; }
.brand { min-height: 44px; }
@media (max-width: 900px) { .nav .btn-sm { padding: 10px 18px; font-size: 14px; } }
/* maker */
.maker .who-name { font-size: clamp(28px, 4vw, 38px); font-weight: 700; letter-spacing: -.035em; line-height: 1.1; }
.maker .who-role { color: var(--ink2); margin-top: 6px; font-size: 18px; }
.maker .who-line { margin: 22px 0 0; font-size: 20px; line-height: 1.4; letter-spacing: -.01em; color: var(--ink); }
.foot a { text-decoration: underline; text-underline-offset: 3px; } .foot a:hover { color: var(--ink); }
.foot a { display: inline-block; padding: 12px 2px; margin: -12px 0; }

/* ---------- SEO pass: FAQ, guide article, footer links ---------- */
.more { margin-top: 18px; font-size: 18px; } .more a, .article a:not(.btn), .foot-links a { text-decoration: underline; text-underline-offset: 3px; text-decoration-color: color-mix(in srgb, currentColor 35%, transparent); } .more a { color: var(--accent); }
.faq { display: grid; gap: 10px; margin-top: 44px; max-width: 820px; }
.faq details { background: var(--bg2); border-radius: 18px; padding: 0 24px; }
.faq summary { cursor: pointer; list-style: none; padding: 20px 28px 20px 0; font-size: 19px; font-weight: 600; letter-spacing: -.015em; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: ''; position: absolute; right: 4px; top: 50%; width: 9px; height: 9px; margin-top: -7px; border: solid var(--ink2); border-width: 0 2.2px 2.2px 0; transform: rotate(45deg); transition: transform .35s var(--spring); }
.faq details[open] summary::after { transform: rotate(225deg); margin-top: -2px; }
.faq details p { color: var(--ink2); font-size: 17px; padding: 0 0 22px; max-width: 700px; }
.wrap.narrow { width: min(760px, 100% - 48px); }
.article { padding-top: 120px; } .article h1 { font-size: clamp(34px, 5.4vw, 56px); line-height: 1.06; margin-top: 10px; }
.article h2 { font-size: clamp(24px, 3.2vw, 32px); margin-top: 56px; letter-spacing: -.03em; line-height: 1.15; }
.article p, .article li { font-size: 18px; line-height: 1.6; color: var(--ink2); margin-top: 14px; } .article li { margin-top: 10px; } .article ul { padding-left: 22px; margin: 0; }
.article strong { color: var(--ink); } .article .code { margin: 18px 0 4px; }
.article .byline { font-size: 15px; color: var(--ink3); margin-top: 18px; } .crumbs { font-size: 14px; color: var(--ink3); } .crumbs a { color: var(--ink2); }
kbd { font: .85em var(--mono); background: var(--fill); padding: 1px 7px; border-radius: 6px; }
.foot .wrap { gap: 10px 24px; } .nav .links a[aria-current="page"] { color: var(--ink); }
/* audit round 2 */
.article code, .article li, .article p { overflow-wrap: anywhere; }
kbd { color: var(--ink); }
.more a { color: #0066cc; } @media (prefers-color-scheme: dark) { .more a { color: var(--accent); } }