/* The front page (docs/landing/index.html). Self-contained: system fonts, no framework, one
   palette per theme. The download blocks use the same jfj-dl markup as the Sphinx download pages
   (docs/_ext/jfjoch_downloads.py) and are styled here for this page. */

:root {
    --bg: #fbfbfd;
    --bg-raised: #ffffff;
    --bg-tint: #eef0fa;
    --fg: #1b1d2a;
    --fg-muted: #5b6072;
    --line: rgba(27, 29, 42, 0.12);
    --primary: #3949ab;
    --primary-strong: #2c3a8f;
    --primary-soft: rgba(57, 73, 171, 0.1);
    --on-primary: #ffffff;
    --accent: #e9a23b;
    --accent-soft: rgba(233, 162, 59, 0.16);
    --shadow: 0 1px 2px rgba(27, 29, 42, 0.06), 0 8px 24px rgba(27, 29, 42, 0.06);
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --bg: #11131c;
        --bg-raised: #181b27;
        --bg-tint: #1d2130;
        --fg: #e8e9f1;
        --fg-muted: #9ea3b8;
        --line: rgba(232, 233, 241, 0.12);
        --primary: #8e9dff;
        --primary-strong: #aab5ff;
        --primary-soft: rgba(142, 157, 255, 0.14);
        --on-primary: #0d1030;
        --accent: #f0b65b;
        --accent-soft: rgba(240, 182, 91, 0.16);
        --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 8px 24px rgba(0, 0, 0, 0.35);
    }
}

:root[data-theme="dark"] {
    --bg: #11131c;
    --bg-raised: #181b27;
    --bg-tint: #1d2130;
    --fg: #e8e9f1;
    --fg-muted: #9ea3b8;
    --line: rgba(232, 233, 241, 0.12);
    --primary: #8e9dff;
    --primary-strong: #aab5ff;
    --primary-soft: rgba(142, 157, 255, 0.14);
    --on-primary: #0d1030;
    --accent: #f0b65b;
    --accent-soft: rgba(240, 182, 91, 0.16);
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 8px 24px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--fg);
    font: 16px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-strong); text-decoration: underline; }

code {
    font-family: "SFMono-Regular", Menlo, Consolas, "Roboto Mono", monospace;
    font-size: 0.92em;
    background: var(--primary-soft);
    padding: 0.1em 0.35em;
    border-radius: 4px;
}

h1, h2, h3 { line-height: 1.2; letter-spacing: -0.01em; margin: 0; }

main > section, .top, .foot {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ---- header ---------------------------------------------------------------------------------- */

.top {
    display: flex;
    align-items: center;
    gap: 24px;
    padding-top: 18px;
    padding-bottom: 18px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--fg);
    font-weight: 600;
    font-size: 1.05em;
}
.brand:hover { text-decoration: none; }
.brand img { display: block; }

.top__nav { display: flex; gap: 22px; margin-left: auto; font-weight: 500; }
.top__nav a { color: var(--fg-muted); }
.top__nav a:hover { color: var(--primary); text-decoration: none; }

.theme-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px; height: 38px;
    border: 1px solid var(--line);
    border-radius: 50%;
    background: var(--bg-raised);
    color: var(--fg-muted);
    cursor: pointer;
}
.theme-toggle:hover { color: var(--primary); border-color: var(--primary); }
.theme-toggle__moon { display: none; }
:root[data-theme="dark"] .theme-toggle__sun { display: none; }
:root[data-theme="dark"] .theme-toggle__moon { display: block; }
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .theme-toggle__sun { display: none; }
    :root:not([data-theme="light"]) .theme-toggle__moon { display: block; }
}

/* ---- hero ------------------------------------------------------------------------------------ */

.hero {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 560px);
    align-items: center;
    gap: 32px;
    padding-top: 56px;
    padding-bottom: 64px;
}

.hero__art {
    grid-column: 2;
    grid-row: 1;
    width: 100%;
    max-width: 560px;
    justify-self: end;
    margin: 0;
}
/* A detector frame beside the placed model in its density, over the live analysis' timeline, drawn
   on the page's own colours: one file per theme, shown by the same rules that pick the theme's tokens. */
.hero__art img {
    display: block;
    width: 100%;
    height: auto;
}
.hero__art .hero__art-dark { display: none; }
:root[data-theme="dark"] .hero__art .hero__art-light { display: none; }
:root[data-theme="dark"] .hero__art .hero__art-dark { display: block; }
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .hero__art .hero__art-light { display: none; }
    :root:not([data-theme="light"]) .hero__art .hero__art-dark { display: block; }
}
.hero__art figcaption {
    margin-top: 10px;
    font-size: 0.78em;
    color: var(--fg-muted);
    text-align: right;
}

.hero__text { grid-column: 1; grid-row: 1; max-width: 600px; }

.eyebrow {
    margin: 0 0 14px;
    font-size: 0.78em;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--primary);
}

.hero h1 {
    font-size: clamp(2.1rem, 4.6vw, 3.4rem);
    font-weight: 700;
    letter-spacing: -0.025em;
    margin-bottom: 18px;
}

.lede { font-size: 1.2em; color: var(--fg-muted); margin: 0 0 26px; }
.lede strong { color: var(--fg); font-weight: 600; }

.hero__actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 26px; }

.btn {
    display: inline-block;
    padding: 11px 20px;
    border-radius: 8px;
    font-weight: 600;
    border: 1px solid transparent;
    transition: transform 0.12s, box-shadow 0.12s, background 0.12s;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn--primary { background: var(--primary); color: var(--on-primary); box-shadow: var(--shadow); }
.btn--primary:hover { background: var(--primary-strong); color: var(--on-primary); }
.btn--ghost { border-color: var(--line); color: var(--fg); background: var(--bg-raised); }
.btn--ghost:hover { border-color: var(--primary); color: var(--primary); }

.hero__run {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    margin: 0;
    font-size: 0.95em;
}
.hero__run code { font-size: 1em; padding: 0.35em 0.7em; max-width: 100%; overflow-wrap: anywhere; }

/* ---- programs -------------------------------------------------------------------------------- */

.programs { padding-bottom: 56px; }

.programs__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.program {
    display: flex;
    flex-direction: column;
    padding: 24px 24px 20px;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: var(--bg-raised);
    box-shadow: var(--shadow);
}
.program__kicker {
    margin: 0 0 8px;
    font-size: 0.74em;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--primary);
}
.program h2 { font-size: 1.45em; font-weight: 650; margin-bottom: 12px; }
.program > p:not([class]) { margin: 0 0 14px; color: var(--fg); flex: 1 1 auto; }
.program__meta { margin: 0 0 14px; font-size: 0.82em; color: var(--fg-muted); }
.program__links {
    margin: 0;
    padding-top: 14px;
    border-top: 1px solid var(--line);
    display: flex;
    flex-wrap: wrap;
    gap: 6px 18px;
    font-weight: 500;
}
.program__links a:first-child { font-weight: 700; }

/* ---- download -------------------------------------------------------------------------------- */

.download {
    padding-top: 48px;
    padding-bottom: 24px;
    border-top: 1px solid var(--line);
}
.download__head { max-width: 640px; margin-bottom: 28px; }
.download__head h2 { font-size: 2em; font-weight: 700; margin-bottom: 10px; }
.download__head p { margin: 0; color: var(--fg-muted); font-size: 1.05em; }
.download__head [data-os-note]:not(:empty) { color: var(--fg); font-weight: 500; }

.download__program { margin-bottom: 36px; }
.download__program h3 { font-size: 1.3em; font-weight: 650; margin-bottom: 8px; }
.download__program > p { margin: 0 0 16px; max-width: 720px; color: var(--fg-muted); }
.download__program--text > p { color: var(--fg); }

.jfj-dl__release { margin: 0 0 14px; font-size: 0.95em; color: var(--fg-muted); }
.jfj-dl__release strong { color: var(--fg); }

.jfj-dl__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 16px;
}

.jfj-dl__card {
    position: relative;
    padding: 18px 18px 8px;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: var(--bg-raised);
}
.jfj-dl__card.is-yours {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-soft), var(--shadow);
}
.jfj-dl__card.is-yours::after {
    content: "Your system";
    position: absolute;
    top: -11px; right: 14px;
    padding: 2px 10px;
    border-radius: 999px;
    background: var(--accent);
    color: #1b1d2a;
    font-size: 0.72em;
    font-weight: 700;
    letter-spacing: 0.04em;
}

.jfj-dl__platform { font-size: 1.1em; font-weight: 650; margin-bottom: 12px; }

a.jfj-dl__btn {
    display: block;
    margin-bottom: 10px;
    padding: 10px 14px;
    border: 1px solid var(--primary);
    border-radius: 8px;
    background: var(--primary);
    color: var(--on-primary);
    font-weight: 600;
    line-height: 1.3;
    transition: background 0.12s, box-shadow 0.12s;
}
a.jfj-dl__btn:hover { text-decoration: none; background: var(--primary-strong); box-shadow: var(--shadow); color: var(--on-primary); }
a.jfj-dl__btn--secondary { background: transparent; color: var(--primary); }
a.jfj-dl__btn--secondary:hover { background: var(--primary-soft); color: var(--primary-strong); }
a.jfj-dl__btn--missing, a.jfj-dl__btn--missing:hover {
    background: transparent;
    border-style: dashed;
    border-color: var(--line);
    color: var(--fg-muted);
    box-shadow: none;
    cursor: default;
}
.jfj-dl__file {
    display: block;
    margin-top: 2px;
    font-family: "SFMono-Regular", Menlo, Consolas, "Roboto Mono", monospace;
    font-size: 0.74em;
    font-weight: 400;
    opacity: 0.85;
    word-break: break-all;
}
.jfj-dl__req { margin: 6px 0 8px; font-size: 0.82em; line-height: 1.45; color: var(--fg-muted); }
.jfj-dl__note { margin: 10px 0 0; font-size: 0.82em; color: var(--fg-muted); }
.jfj-dl__note:empty { display: none; }

/* ---- licence, footer ------------------------------------------------------------------------- */

.licence {
    padding-top: 40px;
    padding-bottom: 48px;
    border-top: 1px solid var(--line);
}
.licence h2 { font-size: 1.5em; font-weight: 650; margin-bottom: 12px; }
.licence p { margin: 0; max-width: 760px; color: var(--fg-muted); }

.foot {
    padding-top: 24px;
    padding-bottom: 40px;
    border-top: 1px solid var(--line);
    font-size: 0.88em;
    color: var(--fg-muted);
}
.foot p { margin: 0 0 6px; }

/* ---- small screens --------------------------------------------------------------------------- */

@media (max-width: 760px) {
    body { font-size: 15px; }
    .top { gap: 14px; flex-wrap: wrap; }
    .top__nav { gap: 14px; margin-left: 0; order: 3; width: 100%; font-size: 0.95em; }
    .theme-toggle { margin-left: auto; }
    .hero { grid-template-columns: 1fr; padding-top: 28px; padding-bottom: 40px; }
    .hero__art { grid-column: 1; grid-row: 1; max-width: 360px; justify-self: center; }
    .hero__art figcaption { text-align: center; }
    .hero__text { grid-row: 2; }
    .programs__grid { grid-template-columns: 1fr; }
}