:root {
    --vuo-paper: #f6f6f1;
    --vuo-paper-strong: #eceee8;
    --vuo-white: #ffffff;
    --vuo-ink: #172226;
    --vuo-muted: #657177;
    --vuo-border: #d9dfda;
    --vuo-accent: #1d756d;
    --vuo-accent-strong: #135c56;
    --vuo-accent-soft: #dcece8;
    --vuo-dark: #102326;
    --vuo-dark-2: #163237;
    --vuo-code: #0d181b;
    --vuo-danger: #c65a52;
    --vuo-radius: 12px;
    --vuo-shadow: 0 18px 50px rgba(23, 34, 38, 0.08);
}

html { scroll-behavior: smooth; }
body {
    background: var(--vuo-paper);
    color: var(--vuo-ink);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    font-size: 1rem;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--vuo-accent-strong); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--vuo-accent); }

.site-header {
    position: relative;
    z-index: 20;
    border-bottom: 1px solid rgba(23, 34, 38, 0.08);
    background: rgba(246, 246, 241, 0.96);
}

.navbar { min-height: 76px; }
.navbar-toggler { border-color: var(--vuo-border); }
.nav-link { color: var(--vuo-ink); font-weight: 600; font-size: .94rem; }
.nav-link:hover, .nav-link:focus { color: var(--vuo-accent); }

.brand {
    display: inline-flex;
    align-items: center;
    gap: .65rem;
    color: var(--vuo-ink);
    text-decoration: none;
    font-size: 1.05rem;
    letter-spacing: -.02em;
}
.brand:hover { color: var(--vuo-ink); }
.brand-mark {
    width: 30px;
    height: 30px;
    border: 2px solid var(--vuo-accent);
    border-radius: 8px;
    display: inline-grid;
    place-items: center;
    transform: rotate(45deg);
}
.brand-mark span {
    width: 11px;
    height: 11px;
    background: var(--vuo-accent);
    border-radius: 3px;
}

.bg-paper {
    background-color: var(--vuo-paper);
}

.btn { border-radius: 8px; font-weight: 700; padding: .7rem 1rem; }
.btn-lg { padding: .9rem 1.25rem; font-size: 1rem; }
.btn-vuo { background: var(--vuo-accent); border-color: var(--vuo-accent); color: #fff; }
.btn-vuo:hover, .btn-vuo:focus { background: var(--vuo-accent-strong); border-color: var(--vuo-accent-strong); color: #fff; }
.btn-outline-vuo { border-color: #aab7b2; color: var(--vuo-ink); background: transparent; }
.btn-outline-vuo:hover, .btn-outline-vuo:focus { border-color: var(--vuo-accent); color: var(--vuo-accent-strong); background: var(--vuo-accent-soft); }

.hero-section { padding: 7.5rem 0 7rem; overflow: hidden; }
.hero-section h1, .page-hero h1 {
    font-size: clamp(3rem, 7vw, 5.8rem);
    line-height: .98;
    letter-spacing: -.055em;
    font-weight: 750;
    max-width: 1000px;
}
.hero-section h1 span { color: var(--vuo-accent); }
.hero-lead, .page-hero p {
    max-width: 740px;
    color: var(--vuo-muted);
    font-size: clamp(1.08rem, 2vw, 1.35rem);
    margin-top: 1.6rem;
}
.hero-proof { display: flex; flex-wrap: wrap; gap: .7rem 1.3rem; color: var(--vuo-muted); font-size: .9rem; font-weight: 650; }
.hero-proof span::before { content: "✓"; color: var(--vuo-accent); margin-right: .45rem; }

.eyebrow {
    display: flex;
    align-items: center;
    gap: .55rem;
    text-transform: uppercase;
    letter-spacing: .13em;
    font-size: .73rem;
    font-weight: 800;
    color: var(--vuo-accent-strong);
    margin-bottom: 1rem;
}
.status-dot { width: 8px; height: 8px; border-radius: 99px; background: var(--vuo-accent); box-shadow: 0 0 0 5px rgba(29,117,109,.12); }

.terminal-card {
    background: var(--vuo-code);
    color: #dce8e5;
    border: 1px solid #294148;
    border-radius: 14px;
    box-shadow: 0 30px 70px rgba(12, 26, 30, .19);
    overflow: hidden;
    transform: rotate(.4deg);
}
.terminal-top { min-height: 46px; padding: 0 1rem; display: flex; align-items: center; gap: .4rem; border-bottom: 1px solid #263b40; color: #7f979c; font: 500 .75rem ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.terminal-top span { width: 9px; height: 9px; background: #466066; border-radius: 50%; }
.terminal-top em { margin-left: auto; font-style: normal; }
.terminal-body { padding: 1.5rem; font: 500 .82rem/1.65 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.terminal-body > div:not(.terminal-rule):not(.terminal-actions) { display: grid; grid-template-columns: 90px 1fr; padding: .24rem 0; }
.terminal-body b { color: #779097; font-size: .72rem; letter-spacing: .07em; }
.terminal-failed { color: #ff8a80; font-weight: 800; }
.terminal-rule { height: 1px; background: #263b40; margin: 1rem 0; }
.terminal-body p { color: #a8babb; margin-bottom: 1rem; }
.terminal-actions { display: flex; flex-wrap: wrap; gap: .5rem; }
.terminal-actions span { border: 1px solid #38555b; border-radius: 6px; padding: .35rem .55rem; color: #b9d4ce; }
.terminal-wide { transform: none; }
.terminal-cli { padding: 1.4rem 1.5rem; font: 500 .88rem/1.8 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.terminal-cli p { margin: 0; }
.terminal-cli b { color: #69bdb1; }

.section { padding: 6rem 0; }
.section-border { border-top: 1px solid var(--vuo-border); border-bottom: 1px solid var(--vuo-border); }
.section-soft { background: var(--vuo-paper-strong); }
.section-dark { background: var(--vuo-dark); color: #edf4f1; }
.section-heading { max-width: 760px; }
.section-heading h2, .section h2 { font-size: clamp(2rem, 4vw, 3.25rem); line-height: 1.08; letter-spacing: -.035em; font-weight: 730; }
.section-heading p, .section-intro { font-size: 1.1rem; color: var(--vuo-muted); max-width: 720px; }
.section-heading-dark p, .section-dark p { color: #a9bdba; }
.eyebrow-dark { color: #7fd0c5; }
.text-link-light { color: #c0e4df; font-weight: 700; }
.text-link-light:hover { color: #fff; }

.text-red {
    color: var(--vuo-danger);
}

.feature-card {
    background: rgba(255,255,255,.45);
    border: 1px solid var(--vuo-border);
    border-radius: var(--vuo-radius);
    padding: 1.6rem;
}
.feature-card h3 { font-size: 1.2rem; margin: 1.1rem 0 .7rem; font-weight: 750; }
.feature-card p { color: var(--vuo-muted); margin: 0; font-size: .96rem; }
.feature-number { font: 700 .75rem ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; color: var(--vuo-accent); border: 1px solid #acd0c8; display: inline-flex; min-width: 32px; height: 28px; align-items: center; justify-content: center; border-radius: 6px; }
.feature-card code { color: var(--vuo-accent-strong); }

.flow-diagram { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr; gap: .65rem; align-items: center; }
.flow-node { min-height: 145px; border: 1px solid #315057; border-radius: 10px; padding: 1.1rem; display: flex; flex-direction: column; justify-content: space-between; background: var(--vuo-dark-2); }
.flow-node small { color: #6e8d91; font-family: ui-monospace, monospace; }
.flow-node strong { font-size: 1rem; }
.flow-node span { color: #9bb0ae; font-size: .8rem; }
.flow-arrow { color: #5c7e7f; }

.code-card { background: var(--vuo-code); border: 1px solid #294148; border-radius: 12px; overflow: hidden; }
.code-label { border-bottom: 1px solid #263b40; color: #83999d; padding: .8rem 1.2rem; font: 700 .72rem ui-monospace, monospace; text-transform: uppercase; letter-spacing: .08em; }
.code-card pre { color: #cfe1dd; margin: 0; padding: 1.6rem; overflow: auto; font: 500 .88rem/1.65 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.code-card code { color: inherit; }

.preview-strip { border-top: 1px solid var(--vuo-border); background: #edf1ec; }

.page-hero { padding: 7rem 0 5.5rem; }
.page-hero h1 { font-size: clamp(2.8rem, 6vw, 5rem); }
.compact-hero { padding-bottom: 4rem; }
.narrow { max-width: 920px; }

.lifecycle-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 1px solid var(--vuo-border); border-left: 1px solid var(--vuo-border); }
.lifecycle-grid article { padding: 2.2rem; border-right: 1px solid var(--vuo-border); border-bottom: 1px solid var(--vuo-border); min-height: 250px; }
.lifecycle-grid article > span { font: 750 .75rem ui-monospace, monospace; color: var(--vuo-accent); }
.lifecycle-grid h2 { font-size: 1.45rem; margin: 1.2rem 0 .75rem; }
.lifecycle-grid p { color: var(--vuo-muted); margin: 0; }

.state-list { border-top: 1px solid #c9d0ca; }
.state-list div { display: grid; grid-template-columns: minmax(180px, .8fr) 1.2fr; gap: 1rem; padding: .9rem 0; border-bottom: 1px solid #c9d0ca; }
.state-list span { color: var(--vuo-muted); }

.dark-feature { border-top: 1px solid #355259; padding-top: 1.2rem; }
.dark-feature strong { font-size: 1.05rem; }
.dark-feature p { margin: .6rem 0 0; font-size: .94rem; }

.reliability-list { border-top: 1px solid var(--vuo-border); }
.reliability-list article { display: grid; grid-template-columns: 58px 1fr auto; gap: 1.5rem; align-items: start; padding: 2rem 0; border-bottom: 1px solid var(--vuo-border); }
.reliability-list h2 { font-size: 1.35rem; margin: 0 0 .35rem; }
.reliability-list p { margin: 0; color: var(--vuo-muted); }
.scenario-code { font: 750 .78rem ui-monospace, monospace; color: var(--vuo-accent); padding-top: .2rem; }
.status-pill { border: 1px solid #9ec4bc; background: var(--vuo-accent-soft); color: var(--vuo-accent-strong); border-radius: 99px; padding: .35rem .65rem; font-size: .72rem; font-weight: 750; }
.status-planned { background: transparent; border-color: #b9c0bd; color: var(--vuo-muted); }

.lab-report { border: 1px solid #345058; border-radius: 12px; overflow: hidden; background: #13292d; }
.lab-report > div { display: grid; grid-template-columns: 1fr 1.3fr; gap: 1rem; padding: .85rem 1.2rem; border-bottom: 1px solid #29434a; }
.lab-report > div:last-child { border: 0; }
.lab-report span { color: #91aaa8; }
.lab-report strong { font-weight: 700; }
.lab-head { background: #183238; }
.lab-result strong { color: #75d2c5; letter-spacing: .08em; }

.preview-expectations, .preview-form { border: 1px solid var(--vuo-border); border-radius: 12px; padding: 2rem; background: rgba(255,255,255,.45); }
.preview-expectations h2 { font-size: 1.35rem; }
.preview-expectations ul { padding-left: 1.2rem; margin: 1.2rem 0 0; }
.preview-expectations li { margin: .5rem 0; }
.form-label { font-weight: 700; font-size: .9rem; }
.form-control { background: #fbfcf9; border-color: #bdc7c1; border-radius: 8px; padding: .78rem .85rem; }
.form-control:focus { border-color: var(--vuo-accent); box-shadow: 0 0 0 .22rem rgba(29,117,109,.12); }
.form-check-input:checked { background-color: var(--vuo-accent); border-color: var(--vuo-accent); }
.form-note { color: var(--vuo-muted); font-size: .82rem; }
.success-mark { width: 54px; height: 54px; margin: 0 auto 1.5rem; display: grid; place-items: center; border-radius: 50%; background: var(--vuo-accent-soft); color: var(--vuo-accent-strong); font-size: 1.5rem; font-weight: 800; }

.prose h2 { font-size: 1.5rem; margin: 2.5rem 0 .7rem; }
.prose p { color: var(--vuo-muted); }
.callout { border-left: 3px solid var(--vuo-accent); background: var(--vuo-accent-soft); padding: 1rem 1.2rem; border-radius: 0 8px 8px 0; }

.site-footer { padding: 4.5rem 0 2rem; border-top: 1px solid var(--vuo-border); background: #eef0eb; }
.brand-footer { margin-bottom: .4rem; }
.footer-copy { color: var(--vuo-muted); max-width: 480px; }
.footer-heading { text-transform: uppercase; letter-spacing: .12em; font-size: .7rem; font-weight: 800; color: var(--vuo-muted); margin-bottom: .8rem; }
.site-footer .col-6 a { display: block; color: var(--vuo-ink); text-decoration: none; margin: .4rem 0; font-size: .92rem; }
.site-footer .col-6 a:hover { color: var(--vuo-accent); }
.footer-bottom { border-top: 1px solid #d3d9d3; margin-top: 3rem; padding-top: 1.4rem; color: var(--vuo-muted); font-size: .8rem; }

@media (max-width: 991.98px) {
    .navbar-collapse { padding: 1rem 0 .5rem; }
    .hero-section { padding: 5rem 0; }
    .flow-diagram { grid-template-columns: 1fr; }
    .flow-arrow { transform: rotate(90deg); text-align: center; }
}

@media (max-width: 767.98px) {
    .section { padding: 4rem 0; }
    .page-hero { padding: 4.5rem 0 3.5rem; }
    .lifecycle-grid { grid-template-columns: 1fr; }
    .state-list div { grid-template-columns: 1fr; gap: .15rem; }
    .reliability-list article { grid-template-columns: 40px 1fr; }
    .reliability-list .status-pill { grid-column: 2; justify-self: start; }
    .preview-form, .preview-expectations { padding: 1.3rem; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
}