:root {
    --cobalt: #1D4ED8;
    --cobalt-deep: #123AA5;
    --ink: #090909;
    --paper: #FBFAF7;
    --mist: #E9EEF9;
    --line: rgba(9, 9, 9, .14);
    --serif: "DM Serif Display", Georgia, serif;
    --sans: "DM Sans", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--sans); }
a { color: inherit; text-decoration: none; }
button, a { -webkit-tap-highlight-color: transparent; }
.arc-shell { overflow: hidden; }
.arc-container { width: min(1180px, calc(100% - 48px)); margin: 0 auto; }
.arc-grain { position: relative; isolation: isolate; }
.arc-grain::after { content: ""; position: absolute; inset: 0; z-index: -1; opacity: .19; pointer-events: none; background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.38'/%3E%3C/svg%3E"); mix-blend-mode: soft-light; }
.arc-blue { background: var(--cobalt); color: white; }
.arc-serif { font-family: var(--serif); font-weight: 400; }
.arc-eyebrow { font-size: 11px; letter-spacing: .16em; text-transform: uppercase; font-weight: 700; }
.arc-pill { display: inline-flex; align-items: center; gap: 10px; border-radius: 999px; padding: 14px 20px; font-size: 14px; font-weight: 700; transition: transform .3s ease, background .3s ease; }
.arc-pill:hover { transform: translateY(-3px); }
.arc-pill-dark { background: var(--ink); color: white; }
.arc-pill-light { background: white; color: var(--ink); }
.arc-pill-outline { border: 1px solid rgba(255,255,255,.4); color: white; }
.arc-nav { position: absolute; top: 0; left: 0; right: 0; z-index: 10; display: flex; justify-content: space-between; align-items: center; padding: 26px 0; }
.arc-wordmark { display: flex; align-items: center; gap: 10px; font-size: 16px; font-weight: 700; letter-spacing: -.03em; }
.arc-mark { width: 22px; height: 22px; border: 2px solid currentColor; border-radius: 50%; position: relative; }
.arc-mark::after { content: ""; width: 7px; height: 7px; border-radius: 50%; background: currentColor; position: absolute; top: 5px; left: 5px; }
.arc-nav-links { display: flex; align-items: center; gap: 28px; font-size: 13px; font-weight: 600; }
.arc-nav-links a { opacity: .82; transition: opacity .2s ease; }
.arc-nav-links a:hover { opacity: 1; }
.arc-hero { min-height: 820px; padding: 142px 0 100px; position: relative; }
.arc-hero-grid { display: grid; grid-template-columns: .92fr 1.08fr; gap: 64px; align-items: center; }
.arc-hero h1 { font-size: clamp(62px, 8vw, 112px); line-height: .92; letter-spacing: -.065em; margin: 22px 0 28px; max-width: 650px; }
.arc-hero-copy { max-width: 410px; color: rgba(255,255,255,.82); font-size: 17px; line-height: 1.55; }
.arc-hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.arc-note { margin-top: 22px; font-size: 12px; opacity: .62; }
.arc-window-wrap { position: relative; }
.arc-window { background: #F5F7FC; border: 1px solid rgba(0,0,0,.16); border-radius: 20px; padding: 10px; box-shadow: 0 32px 90px rgba(4, 20, 83, .32); transform: rotate(2.5deg); transition: transform .5s cubic-bezier(.22,.8,.32,1); }
.arc-window:hover { transform: rotate(0) translateY(-8px); }
.arc-window-bar { display: flex; gap: 5px; padding: 7px 5px 10px; }
.arc-dot { width: 7px; height: 7px; background: #CDD2DB; border-radius: 50%; }
.arc-window-screen { border-radius: 12px; overflow: hidden; background: white; min-height: 350px; display: grid; grid-template-columns: 112px 1fr; color: #10131A; }
.arc-side { background: #10131A; color: white; padding: 20px 13px; }
.arc-side-logo { font-size: 10px; font-weight: 700; letter-spacing: .1em; margin-bottom: 40px; }
.arc-side-line { height: 6px; background: rgba(255,255,255,.22); border-radius: 10px; margin: 15px 0; }
.arc-side-line.active { background: #6D8DF4; width: 75%; }
.arc-dashboard { padding: 24px; background: #F7F8FC; }
.arc-dashboard-top { display: flex; justify-content: space-between; align-items: center; }
.arc-mini-title { font-size: 16px; font-weight: 700; }
.arc-avatar { width: 23px; height: 23px; border-radius: 50%; background: #B4C4F9; }
.arc-chart { height: 130px; margin-top: 22px; border-radius: 12px; background: linear-gradient(180deg, #E5EBFF, #F7F8FC); position: relative; overflow: hidden; }
.arc-chart::after { content: ""; position: absolute; inset: 38px 12px 18px; border-bottom: 3px solid var(--cobalt); border-radius: 50%; transform: skewY(-12deg) rotate(-4deg); box-shadow: 0 14px 0 -1px rgba(29,78,216,.32); }
.arc-metric-row { display: grid; grid-template-columns: repeat(3,1fr); gap: 9px; margin-top: 10px; }
.arc-metric { background: white; border: 1px solid #E4E7EF; border-radius: 10px; padding: 12px; }
.arc-metric b { display: block; font-size: 17px; }
.arc-metric span { font-size: 9px; color: #727A89; }
.arc-orbit { position: absolute; width: 160px; height: 160px; right: -72px; bottom: -58px; border-radius: 50%; border: 1px solid rgba(255,255,255,.45); }
.arc-orbit::after { content: ""; position: absolute; width: 12px; height: 12px; background: #F8C7A7; border-radius: 50%; top: 11px; left: 30px; box-shadow: 74px 110px 0 #A7E3D2; }
.arc-scallop { height: 72px; margin-top: -1px; position: relative; background: var(--paper); }
.arc-scallop::before { content: ""; position: absolute; left: -2%; right: -2%; top: -30px; height: 64px; background: var(--paper); border-radius: 50% 50% 0 0 / 100% 100% 0 0; }
.arc-scallop-blue { background: var(--cobalt); }
.arc-scallop-blue::before { background: var(--cobalt); }
.arc-section { padding: 104px 0; }
.arc-intro-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 80px; align-items: start; }
.arc-section h2 { font-size: clamp(46px, 6vw, 82px); line-height: .95; letter-spacing: -.055em; margin: 16px 0 0; }
.arc-section-lead { max-width: 530px; font-size: 20px; line-height: 1.5; color: #4D5158; margin: 0; }
.arc-feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 70px; }
.arc-feature { min-height: 290px; border-top: 1px solid var(--line); padding-top: 20px; }
.arc-feature-number { font-size: 12px; font-weight: 700; color: var(--cobalt); }
.arc-feature h3 { font-family: var(--serif); font-size: 34px; font-weight: 400; margin: 82px 0 14px; }
.arc-feature p { color: #62666D; line-height: 1.5; font-size: 14px; max-width: 250px; }
.arc-testimonial { padding: 112px 0 125px; }
.arc-quote { font-family: var(--serif); font-size: clamp(42px, 6vw, 76px); line-height: .98; letter-spacing: -.045em; max-width: 980px; margin: 18px 0 44px; }
.arc-quote em { color: #B9C8FF; }
.arc-byline { display: flex; align-items: center; gap: 12px; color: rgba(255,255,255,.7); font-size: 13px; }
.arc-byline-mark { width: 30px; height: 30px; border-radius: 50%; background: #F8C7A7; }
.arc-cta { background: #111; color: white; padding: 98px 0; }
.arc-cta-grid { display: flex; justify-content: space-between; gap: 40px; align-items: end; }
.arc-cta h2 { max-width: 710px; margin: 14px 0 0; }
.arc-cta p { color: rgba(255,255,255,.62); max-width: 360px; line-height: 1.5; margin: 0 0 24px; }
.arc-faq { padding: 96px 0 120px; }
.arc-faq-list { max-width: 760px; margin: 54px 0 0 auto; }
.arc-faq-item { border-top: 1px solid var(--line); padding: 21px 0; }
.arc-faq-q { width: 100%; display: flex; justify-content: space-between; gap: 24px; border: 0; background: none; padding: 0; text-align: left; font: inherit; font-size: 16px; font-weight: 600; cursor: pointer; }
.arc-faq-q span:last-child { font-size: 22px; font-weight: 400; }
.arc-faq-a { max-height: 0; overflow: hidden; color: #676B72; line-height: 1.55; font-size: 14px; opacity: 0; transform: translateY(-4px); transition: opacity .35s ease, transform .35s ease; }
.arc-faq-item.open .arc-faq-a { max-height: 120px; padding-top: 12px; opacity: 1; transform: translateY(0); }
.arc-footer { background: var(--paper); border-top: 1px solid var(--line); padding: 28px 0 40px; display: flex; justify-content: space-between; gap: 20px; font-size: 12px; color: #70747B; }
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
@media (max-width: 800px) {
    .arc-container { width: min(100% - 34px, 620px); }
    .arc-nav-links a:not(.arc-pill) { display: none; }
    .arc-hero { min-height: auto; padding: 118px 0 70px; }
    .arc-hero-grid, .arc-intro-grid { grid-template-columns: 1fr; gap: 48px; }
    .arc-hero h1 { font-size: clamp(59px, 17vw, 92px); }
    .arc-window { transform: rotate(0); }
    .arc-feature-grid { grid-template-columns: 1fr; margin-top: 48px; }
    .arc-feature { min-height: 210px; }
    .arc-feature h3 { margin-top: 52px; }
    .arc-cta-grid { display: block; }
    .arc-cta p { margin-top: 26px; }
    .arc-footer { display: block; }
    .arc-footer span { display: block; margin-top: 10px; }
}