:root {
    --content-width: 1240px;
    --page-pad: 24px;
    --body-font: "Literata", Georgia, serif;
    --heading-font: "Space Grotesk", "Trebuchet MS", sans-serif;
    --mono-font: "IBM Plex Mono", "Courier New", monospace;
    --bg: #edf4ff;
    --text: #13203a;
    --muted: #51698e;
    --accent: #2563eb;
    --accent-soft: #8bb6ff;
    --surface: rgba(248, 251, 255, 0.72);
    --surface-strong: #ffffff;
    --surface-soft: rgba(236, 244, 255, 0.72);
    --line: rgba(19, 32, 58, 0.12);
    --line-strong: rgba(19, 32, 58, 0.2);
    --shadow-lg: 0 28px 90px rgba(19, 32, 58, 0.12);
    --shadow-md: 0 18px 48px rgba(19, 32, 58, 0.09);
    --radius-xl: 34px;
    --radius-lg: 24px;
    --radius-md: 16px;
    --hero-columns: minmax(0, 1.45fr) minmax(280px, 0.95fr);
    --nav-active-bg: var(--accent);
    --nav-active-text: #ffffff;
    --nav-hover: rgba(37, 99, 235, 0.08);
    --control-bg: rgba(255, 255, 255, 0.5);
    --control-hover: rgba(37, 99, 235, 0.08);
    --shadow-hover: 0 24px 56px rgba(19, 32, 58, 0.13);
    --logo-muted: #0f172a;
    --logo-muted-opacity: 0.14;
    --logo-wordmark: #0f172a;
    --logo-separator: rgba(15, 23, 42, 0.08);
    --theme-color: #2563eb;
}

:root[data-theme="dark"] {
    --bg: #0b1220;
    --text: #eff4ff;
    --muted: #a9badd;
    --accent: #2563eb;
    --accent-soft: #79a8ff;
    --surface: rgba(15, 23, 42, 0.78);
    --surface-strong: #101a2b;
    --surface-soft: rgba(18, 29, 48, 0.86);
    --line: rgba(159, 192, 255, 0.16);
    --line-strong: rgba(159, 192, 255, 0.26);
    --shadow-lg: 0 28px 90px rgba(0, 0, 0, 0.38);
    --shadow-md: 0 18px 48px rgba(0, 0, 0, 0.28);
    --nav-hover: rgba(96, 165, 250, 0.16);
    --control-bg: rgba(14, 23, 40, 0.78);
    --control-hover: rgba(96, 165, 250, 0.16);
    --shadow-hover: 0 24px 56px rgba(0, 0, 0, 0.34);
    --logo-muted: #ffffff;
    --logo-muted-opacity: 0.24;
    --logo-wordmark: #ffffff;
    --logo-separator: rgba(255, 255, 255, 0.12);
    --theme-color: #0b1220;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;
    overflow-x: hidden;
    color: var(--text);
    background: var(--bg);
    font-family: var(--body-font);
    line-height: 1.6;
    transition: background-color 180ms ease, color 180ms ease;
}

button {
    font: inherit;
    color: inherit;
}

img {
    display: block;
    max-width: 100%;
}

a {
    color: inherit;
    text-decoration-color: color-mix(in srgb, var(--accent) 55%, transparent);
    text-underline-offset: 0.18em;
}

a:hover {
    text-decoration-color: color-mix(in srgb, var(--accent) 88%, transparent);
}

.page-shell {
    position: relative;
    z-index: 1;
    width: min(100%, var(--content-width));
    margin: 0 auto;
    padding: var(--page-pad);
}

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 22px;
    padding: 18px 22px;
    margin-top: 6px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--surface);
    box-shadow: var(--shadow-md);
    -webkit-backdrop-filter: blur(18px);
    backdrop-filter: blur(18px);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.brand-logo {
    width: clamp(126px, 16vw, 152px);
    height: auto;
    flex: 0 0 auto;
}

.brand-logo text {
    font-family: var(--mono-font);
}

.brand-logo .brand-muted {
    fill: var(--logo-muted);
    opacity: var(--logo-muted-opacity);
}

.brand-logo .brand-accent {
    fill: var(--accent);
}

.brand-logo .brand-accent-soft {
    fill: var(--accent);
    opacity: 0.4;
}

.brand-logo .brand-separator {
    stroke: var(--logo-separator);
}

.brand-logo .brand-wordmark-main {
    fill: var(--logo-wordmark);
    font-size: 31px;
    font-weight: 600;
    letter-spacing: -2px;
}

.brand-logo .brand-wordmark-dev {
    fill: var(--accent);
    font-size: 13px;
    font-weight: 400;
    letter-spacing: 4px;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.topbar-actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 12px;
    flex-wrap: wrap;
    margin-left: auto;
}

.topnav {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.topnav a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 16px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--control-bg);
    color: var(--text);
    font-family: var(--mono-font);
    font-size: 0.76rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-decoration: none;
    text-transform: uppercase;
    transition: transform 180ms ease, background-color 180ms ease, border-color 180ms ease, color 180ms ease;
}

.topnav a:hover,
.topnav a:focus-visible {
    transform: translateY(-1px);
    background: var(--control-hover);
    border-color: color-mix(in srgb, var(--accent) 28%, var(--line));
}

.topnav a.is-active {
    background: var(--nav-active-bg);
    border-color: var(--nav-active-bg);
    color: var(--nav-active-text);
}

.theme-toggle {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--control-bg);
    box-shadow: var(--shadow-md);
}

.theme-option {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 12px;
    border: 0;
    border-radius: 999px;
    background: transparent;
    color: var(--muted);
    cursor: pointer;
    font-family: var(--mono-font);
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    transition: background-color 180ms ease, color 180ms ease, transform 180ms ease;
}

.theme-option:hover,
.theme-option:focus-visible {
    background: var(--control-hover);
    color: var(--text);
    outline: none;
}

.theme-option.is-selected {
    background: var(--nav-active-bg);
    color: var(--nav-active-text);
}

.hero {
    display: grid;
    grid-template-columns: var(--hero-columns);
    gap: 24px;
    padding: clamp(28px, 5vw, 54px);
    margin-top: 30px;
    border: 1px solid var(--line);
    border-radius: var(--radius-xl);
    background: var(--surface);
    box-shadow: var(--shadow-lg);
    -webkit-backdrop-filter: blur(18px);
    backdrop-filter: blur(18px);
}

.hero-copy {
    position: relative;
}

.eyebrow,
.document-kicker,
.card-label {
    margin: 0 0 14px;
    color: var(--accent);
    font-family: var(--mono-font);
    font-size: 0.76rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

h1,
h2,
h3 {
    margin: 0;
    color: var(--text);
    font-family: var(--heading-font);
    line-height: 1.08;
}

h1 {
    font-size: clamp(2.65rem, 6vw, 5rem);
    letter-spacing: -0.05em;
}

.lede {
    max-width: 38em;
    margin: 18px 0 0;
    color: var(--muted);
    font-size: 1.1rem;
    line-height: 1.82;
}

.hero-pills,
.meta-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 22px;
}

.pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    border: 1px solid color-mix(in srgb, var(--accent) 18%, var(--line));
    border-radius: 999px;
    background: var(--control-bg);
    color: var(--muted);
    font-family: var(--mono-font);
    font-size: 0.76rem;
    line-height: 1.35;
}

.hero-summary,
.card,
.document-card,
.principle-card,
.mini-card,
.footer-note {
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    background: var(--surface);
    box-shadow: var(--shadow-md);
    -webkit-backdrop-filter: blur(18px);
    backdrop-filter: blur(18px);
}

.hero-summary {
    padding: 24px;
}

.hero-summary h2 {
    margin-bottom: 14px;
    font-size: 1.18rem;
}

.hero-summary ul,
.policy ul {
    margin: 0;
    padding-left: 1.25rem;
}

.hero-summary li,
.policy li {
    color: var(--muted);
    line-height: 1.75;
}

.hero-summary li + li,
.policy li + li {
    margin-top: 10px;
}

.note-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 16px;
    color: var(--accent);
    font-family: var(--mono-font);
    font-size: 0.76rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-decoration: none;
    text-transform: uppercase;
}

.section-heading {
    margin: 38px 0 18px;
    font-size: clamp(1.75rem, 3vw, 2.35rem);
    letter-spacing: -0.04em;
}

.landing-section {
    margin-top: 22px;
}

.document-grid,
.principles-grid,
.mini-grid {
    display: grid;
    gap: 18px;
}

.document-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.document-card,
.principle-card,
.mini-card {
    display: block;
    padding: 24px;
    text-decoration: none;
    transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.document-card:hover,
.document-card:focus-visible,
.principle-card:hover,
.mini-card:hover {
    transform: translateY(-3px);
    border-color: color-mix(in srgb, var(--accent) 28%, var(--line));
    box-shadow: var(--shadow-hover);
}

.document-card h2,
.principle-card h3,
.mini-card h3 {
    font-size: 1.45rem;
    letter-spacing: -0.04em;
}

.document-card p,
.principle-card p,
.mini-card p,
.footer-note p,
.policy p {
    margin: 12px 0 0;
    color: var(--muted);
    font-size: 1rem;
    line-height: 1.8;
}

.document-meta {
    margin-top: 18px;
    color: var(--accent);
    font-family: var(--mono-font);
    font-size: 0.76rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.principles-grid {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.legal-layout {
    display: grid;
    grid-template-columns: minmax(220px, 280px) minmax(0, 1fr);
    gap: 20px;
    margin-top: 24px;
    align-items: start;
}

.toc {
    position: sticky;
    top: 24px;
    padding: 22px;
}

.toc h2 {
    margin-bottom: 12px;
    font-size: 1.04rem;
}

.toc nav {
    display: grid;
    gap: 4px;
}

.toc a {
    padding: 10px 0;
    border-top: 1px solid color-mix(in srgb, var(--text) 9%, transparent);
    color: var(--muted);
    text-decoration: none;
}

.toc a:first-child {
    border-top: 0;
    padding-top: 0;
}

.toc a:hover,
.toc a:focus-visible {
    color: var(--accent);
}

.policy {
    padding: clamp(24px, 4vw, 46px);
}

.policy section {
    scroll-margin-top: 34px;
}

.policy section + section {
    margin-top: 42px;
    padding-top: 38px;
    border-top: 1px solid color-mix(in srgb, var(--text) 9%, transparent);
}

.policy h2 {
    font-size: clamp(1.55rem, 2.8vw, 2.15rem);
    letter-spacing: -0.04em;
}

.policy h3 {
    margin: 24px 0 8px;
    font-size: 1.04rem;
    letter-spacing: -0.02em;
}

.policy p {
    margin: 0;
}

.policy p + p,
.policy ul + p,
.policy p + ul,
.policy ul + ul,
.mini-grid + p {
    margin-top: 14px;
}

.mini-grid {
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    margin-top: 16px;
}

.mini-card {
    background: var(--surface-soft);
}

.site-footer {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(240px, 0.8fr);
    gap: 18px;
    margin: 24px 0 10px;
}

.footer-note {
    padding: 24px;
}

.footer-note strong {
    display: block;
    margin-bottom: 8px;
    font-family: var(--heading-font);
    font-size: 1.08rem;
}

@media (max-width: 1024px) {
    .hero,
    .legal-layout,
    .site-footer {
        grid-template-columns: 1fr;
    }

    .toc {
        position: static;
    }
}

@media (max-width: 720px) {
    .page-shell {
        padding: 16px;
    }

    .topbar {
        flex-direction: column;
        align-items: flex-start;
        border-radius: 26px;
        padding: 18px;
    }

    .topbar-actions {
        width: 100%;
        flex-direction: column;
        align-items: stretch;
    }

    .topnav {
        width: 100%;
    }

    .topnav a {
        flex: 1 1 auto;
    }

    .theme-toggle {
        width: 100%;
    }

    .theme-option {
        flex: 1 1 0;
    }

    h1 {
        font-size: clamp(2.3rem, 11vw, 3.8rem);
    }

    .lede,
    .document-card p,
    .principle-card p,
    .policy p,
    .policy li {
        font-size: 0.98rem;
    }
}

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

    * {
        transition: none !important;
    }
}