/* IIS Monitor website. Colors follow the dashboard: navy #1f4e79 and the chart palette. */

:root {
    --bg: #ffffff;
    --bg-soft: #f6f8fb;
    --bg-sunk: #eef2f7;
    --ink: #0f1a2a;
    --ink-2: #334155;
    --muted: #5b6878;
    --line: #e2e8f0;
    --line-strong: #cbd5e1;
    --brand: #1f4e79;
    --brand-2: #2a78d6;
    --brand-soft: #e8f0f8;
    --on-brand: #ffffff;
    --link: #1d62ad;
    --ok: #107c10;
    --bad: #c42b1c;
    --warn-bg: #fff7dc;
    --warn-line: #e5c25a;
    --code-bg: #f1f4f8;
    --shadow: 0 1px 2px rgb(15 26 42 / 0.06), 0 12px 32px -12px rgb(15 26 42 / 0.18);
    --shadow-soft: 0 1px 2px rgb(15 26 42 / 0.05), 0 4px 12px -6px rgb(15 26 42 / 0.12);
    --radius: 12px;
    --radius-small: 8px;
    --font: "Segoe UI Variable Text", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
    --font-display: "Segoe UI Variable Display", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
    --mono: ui-monospace, "Cascadia Code", "Cascadia Mono", Consolas, "SFMono-Regular", Menlo, monospace;
    --container: 1220px;
    --gutter: clamp(16px, 4vw, 32px);
    color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #0b1220;
        --bg-soft: #0f1829;
        --bg-sunk: #142036;
        --ink: #e7edf5;
        --ink-2: #c3cedb;
        --muted: #93a1b3;
        --line: #1f2c42;
        --line-strong: #2d3d57;
        --brand: #7cb6ee;
        --brand-2: #7cb6ee;
        --brand-soft: #14243b;
        --on-brand: #08111f;
        --link: #8cc2f5;
        --ok: #5fc25f;
        --bad: #ff8a80;
        --warn-bg: #2a2410;
        --warn-line: #6b5a1d;
        --code-bg: #121d31;
        --shadow: 0 1px 2px rgb(0 0 0 / 0.4), 0 16px 40px -16px rgb(0 0 0 / 0.7);
        --shadow-soft: 0 1px 2px rgb(0 0 0 / 0.35), 0 6px 16px -8px rgb(0 0 0 / 0.6);
    }
}

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

html {
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
    scroll-padding-top: 88px;
}

@media (prefers-reduced-motion: no-preference) {
    html { scroll-behavior: smooth; }
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--ink);
    font: 400 1rem/1.65 var(--font);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

img, svg { display: block; max-width: 100%; }
img { height: auto; }

a { color: var(--link); text-underline-offset: 0.18em; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }

:focus-visible { outline: 2px solid var(--brand-2); outline-offset: 2px; border-radius: 4px; }

h1, h2, h3, h4 {
    font-family: var(--font-display);
    color: var(--ink);
    line-height: 1.2;
    letter-spacing: -0.015em;
    margin: 0;
    text-wrap: balance;
}

p { margin: 0; }

code, kbd, pre { font-family: var(--mono); font-size: 0.875em; }

.container {
    width: 100%;
    max-width: var(--container);
    margin-inline: auto;
    padding-inline: var(--gutter);
}

.icon { width: 1.25em; height: 1.25em; flex: none; }

.visually-hidden {
    position: absolute !important;
    width: 1px; height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
}

.skip-link {
    position: absolute;
    left: 12px;
    top: -48px;
    z-index: 100;
    padding: 8px 14px;
    border-radius: var(--radius-small);
    background: var(--brand);
    color: var(--on-brand);
    font-weight: 600;
}
.skip-link:focus { top: 12px; }

/* ---------- Buttons ---------- */

.button {
    display: inline-flex;
    align-items: center;
    gap: 0.5em;
    padding: 0.8em 1.35em;
    border-radius: 999px;
    border: 1px solid transparent;
    background: var(--brand);
    color: var(--on-brand);
    font-weight: 600;
    font-size: 1rem;
    line-height: 1.2;
    text-decoration: none;
    transition: transform 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease;
    box-shadow: 0 1px 2px rgb(15 26 42 / 0.12);
}
.button:hover { transform: translateY(-1px); box-shadow: var(--shadow-soft); }
.button .icon { width: 1.1em; height: 1.1em; }

.button-quiet {
    background: transparent;
    color: var(--ink);
    border-color: var(--line-strong);
    box-shadow: none;
}
.button-quiet:hover { background: var(--bg-soft); }

.button-small { padding: 0.5em 1em; font-size: 0.9rem; }

/* ---------- Header ---------- */

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    background: color-mix(in srgb, var(--bg) 86%, transparent);
    backdrop-filter: saturate(1.6) blur(14px);
    -webkit-backdrop-filter: saturate(1.6) blur(14px);
    border-bottom: 1px solid var(--line);
}

.header-inner {
    display: flex;
    align-items: center;
    gap: 28px;
    min-height: 64px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--ink);
    font-family: var(--font-display);
    font-weight: 650;
    font-size: 1.08rem;
    letter-spacing: -0.01em;
    text-decoration: none;
}
.logo-mark { width: 30px; height: 30px; }

.site-nav { display: flex; gap: 4px; margin-left: auto; }
.site-nav a {
    padding: 6px 12px;
    border-radius: 999px;
    color: var(--ink-2);
    font-size: 0.95rem;
    text-decoration: none;
}
.site-nav a:hover { color: var(--ink); background: var(--bg-soft); }
.site-nav a[aria-current] { color: var(--ink); background: var(--bg-sunk); font-weight: 600; }

@media (max-width: 760px) {
    .header-inner { flex-wrap: wrap; gap: 0 12px; padding-block: 10px 0; }
    .header-cta { margin-left: auto; }
    .site-nav {
        order: 3;
        width: 100%;
        margin: 6px calc(var(--gutter) * -1) 0;
        padding: 0 calc(var(--gutter) - 12px) 8px;
        overflow-x: auto;
        scrollbar-width: none;
    }
    .site-nav { gap: 0; }
    .site-nav a { padding: 6px 8px; font-size: 0.9rem; white-space: nowrap; }
    html { scroll-padding-top: 120px; }
}

/* ---------- Home ---------- */

.hero {
    position: relative;
    padding: clamp(48px, 8vw, 96px) 0 0;
    text-align: center;
    overflow: hidden;
}
.hero::before {
    content: "";
    position: absolute;
    inset: 0 0 auto;
    height: 640px;
    z-index: -1;
    background:
        radial-gradient(60% 55% at 50% 0%, color-mix(in srgb, var(--brand-2) 16%, transparent), transparent 70%),
        linear-gradient(var(--bg-soft), var(--bg));
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--brand);
    font-size: 0.82rem;
    font-weight: 650;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}
.eyebrow .icon { width: 1.15rem; height: 1.15rem; }

.pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--bg);
    color: var(--ink-2);
    font-size: 0.88rem;
    box-shadow: var(--shadow-soft);
}
.pill .dot { width: 8px; height: 8px; border-radius: 50%; background: #2fbf71; box-shadow: 0 0 0 3px rgb(47 191 113 / 0.2); }

.hero h1 {
    max-width: 17ch;
    margin: 22px auto 0;
    font-size: clamp(2.3rem, 2rem + 3.2vw, 4rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.06;
}

.hero .lead { max-width: 640px; margin: 22px auto 0; }

.lead {
    color: var(--muted);
    font-size: clamp(1.08rem, 1rem + 0.35vw, 1.25rem);
    line-height: 1.6;
    text-wrap: pretty;
}

.actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-top: 32px; }

.hero-shot { margin: clamp(40px, 6vw, 64px) auto 0; max-width: 1140px; }

/* ---------- Sections ---------- */

.section { padding: clamp(64px, 9vw, 112px) 0; }
.section-soft { background: var(--bg-soft); border-block: 1px solid var(--line); }

.section-head { max-width: 700px; margin: 0 auto clamp(36px, 5vw, 56px); text-align: center; }
.section-head h2 { margin-top: 12px; font-size: clamp(1.8rem, 1.5rem + 1.6vw, 2.6rem); letter-spacing: -0.025em; }
.section-head .lead { margin-top: 14px; }

/* Flex rather than grid so a short last row stretches instead of leaving an empty cell. */
.facts {
    display: flex;
    flex-wrap: wrap;
    gap: 1px;
    margin: 0;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--line);
    overflow: hidden;
}
.facts > div { flex: 1 1 170px; padding: 22px 24px; background: var(--bg); }
.facts dt { color: var(--muted); font-size: 0.9rem; }
.facts dd {
    margin: 4px 0 0;
    font-family: var(--font-display);
    font-size: 1.7rem;
    font-weight: 650;
    letter-spacing: -0.02em;
    line-height: 1.15;
}
.facts-band { padding-top: clamp(48px, 6vw, 72px); }

.cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(212px, 1fr));
    gap: 18px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.card {
    position: relative;
    display: flex;
    flex-direction: column;
    height: 100%;
    padding: 22px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--bg);
    transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}
.card:hover { border-color: var(--line-strong); box-shadow: var(--shadow-soft); transform: translateY(-2px); }
.card h3, .card-title { margin-top: 16px; font-size: 1.15rem; }
.card h3 a, .card-title a { color: inherit; text-decoration: none; }
.card h3 a::after, .card-title a::after { content: ""; position: absolute; inset: 0; border-radius: inherit; }
.card p { margin-top: 8px; color: var(--muted); font-size: 0.97rem; }
.card .more { display: inline-flex; align-items: center; gap: 6px; margin-top: auto; padding-top: 16px; color: var(--link); font-size: 0.92rem; font-weight: 600; }
.card .more .icon { width: 1em; height: 1em; transition: transform 0.15s ease; }
.card:hover .more .icon { transform: translateX(3px); }

.card-icon {
    display: grid;
    place-items: center;
    width: 42px;
    height: 42px;
    border-radius: 11px;
    background: var(--brand-soft);
    color: var(--brand);
}
.card-icon .icon { width: 22px; height: 22px; }

.split {
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.25fr);
    gap: clamp(32px, 6vw, 72px);
    align-items: center;
}
.split h2 { font-size: clamp(1.7rem, 1.4rem + 1.4vw, 2.4rem); letter-spacing: -0.025em; }
.split .lead { margin-top: 14px; }
.split.reverse { grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.9fr); }
.split.reverse > :first-child { order: 2; }
@media (max-width: 900px) {
    .split, .split.reverse { grid-template-columns: minmax(0, 1fr); }
    .split.reverse > :first-child { order: 0; }
}

.checks { margin: 22px 0 0; padding: 0; list-style: none; display: grid; gap: 10px; }
.checks li { display: flex; gap: 10px; color: var(--ink-2); }
.checks .icon { width: 1.25em; height: 1.25em; margin-top: 0.2em; color: var(--ok); }

.questions { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 14px; margin: 0; padding: 0; list-style: none; }
.questions a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    height: 100%;
    padding: 18px 20px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--bg);
    color: var(--ink);
    text-decoration: none;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.questions a:hover { border-color: var(--line-strong); box-shadow: var(--shadow-soft); }
.questions strong { display: block; font-weight: 600; }
.questions span { display: block; margin-top: 2px; color: var(--muted); font-size: 0.9rem; }
.questions .icon { color: var(--brand); }

.steps-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 18px; margin: 0; padding: 0; list-style: none; counter-reset: step; }
.steps-grid li { position: relative; padding: 24px; border-radius: var(--radius); background: var(--bg); border: 1px solid var(--line); counter-increment: step; }
.steps-grid li::before {
    content: counter(step);
    display: grid;
    place-items: center;
    width: 32px;
    height: 32px;
    margin-bottom: 14px;
    border-radius: 50%;
    background: var(--brand);
    color: var(--on-brand);
    font-weight: 700;
    font-size: 0.95rem;
}
.steps-grid h3 { font-size: 1.08rem; }
.steps-grid p { margin-top: 6px; color: var(--muted); font-size: 0.96rem; }

.band {
    padding: clamp(40px, 6vw, 64px);
    border-radius: calc(var(--radius) * 1.5);
    background:
        radial-gradient(80% 120% at 100% 0%, rgb(124 182 238 / 0.35), transparent 60%),
        #173d61;
    color: #fff;
    text-align: center;
}
.band h2 { color: #fff; font-size: clamp(1.7rem, 1.4rem + 1.4vw, 2.4rem); letter-spacing: -0.025em; }
.band p { max-width: 560px; margin: 14px auto 0; color: #cfe0f1; font-size: 1.1rem; }
.band .actions { margin-top: 28px; }
.band .button { background: #fff; color: #0f2c47; }
.band .button-quiet { background: transparent; color: #fff; border-color: rgb(255 255 255 / 0.4); }
.band .button-quiet:hover { background: rgb(255 255 255 / 0.08); }

/* ---------- Screenshots ---------- */

.shot { margin: 32px 0; }
.shot-link {
    position: relative;
    display: block;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--bg-soft);
    box-shadow: var(--shadow);
    overflow: hidden;
    cursor: zoom-in;
}
.shot:not(.shot-dialog) .shot-link img { width: 100%; }
.shot-hint {
    position: absolute;
    right: 12px;
    bottom: 12px;
    display: grid;
    place-items: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgb(15 26 42 / 0.72);
    color: #fff;
    opacity: 0;
    transform: translateY(4px);
    transition: opacity 0.15s ease, transform 0.15s ease;
}
.shot-hint .icon { width: 18px; height: 18px; }
.shot-link:hover .shot-hint, .shot-link:focus-visible .shot-hint { opacity: 1; transform: none; }
.shot figcaption { margin-top: 12px; color: var(--muted); font-size: 0.92rem; text-align: center; text-wrap: balance; }
.shot-hero { margin: clamp(32px, 5vw, 48px) 0 0; }
/* Dialog windows are shown at their own size, never stretched: the width attribute sizes the image,
   which also reserves its space before a lazy image has loaded. */
.shot-dialog { width: fit-content; max-width: 100%; margin-inline: auto; }
.shot-missing { padding: 48px 24px; border: 1px dashed var(--line-strong); border-radius: var(--radius); color: var(--muted); text-align: center; }

.zoom-dialog {
    width: min(96vw, 1800px);
    max-width: none;
    max-height: 94vh;
    padding: 0;
    border: 0;
    border-radius: var(--radius);
    background: var(--bg);
    box-shadow: 0 30px 80px rgb(0 0 0 / 0.45);
    overflow: auto;
    cursor: zoom-out;
}
.zoom-dialog::backdrop { background: rgb(8 14 26 / 0.78); backdrop-filter: blur(2px); }
.zoom-dialog img { width: 100%; height: auto; }

/* ---------- Article pages ---------- */

.crumbs { padding-top: 28px; font-size: 0.9rem; }
.crumbs ol { display: flex; flex-wrap: wrap; gap: 6px; margin: 0; padding: 0; list-style: none; color: var(--muted); }
.crumbs li + li::before { content: "/"; margin-right: 6px; color: var(--line-strong); }
.crumbs a { color: var(--muted); text-decoration: none; }
.crumbs a:hover { color: var(--ink); }

.page-head { max-width: 820px; padding-top: clamp(28px, 4vw, 44px); }
.page-head h1 { margin-top: 12px; font-size: clamp(2rem, 1.6rem + 2.2vw, 3.1rem); font-weight: 700; letter-spacing: -0.028em; line-height: 1.1; }
.page-head .lead { margin-top: 16px; }

.article-grid {
    display: grid;
    grid-template-columns: 220px minmax(0, 1fr) 190px;
    gap: clamp(32px, 4vw, 56px);
    align-items: start;
    padding-top: clamp(40px, 5vw, 64px);
    padding-bottom: clamp(64px, 8vw, 104px);
}

.sidenav, .toc { position: sticky; top: 88px; max-height: calc(100vh - 110px); overflow-y: auto; scrollbar-width: thin; }
.sidenav h2, .toc h2, .sidenav-mobile h2 {
    margin: 0 0 8px;
    color: var(--muted);
    font-family: var(--font);
    font-size: 0.75rem;
    font-weight: 650;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}
.sidenav ul, .sidenav-mobile ul { margin: 0 0 28px; padding: 0; list-style: none; }
.sidenav a, .sidenav-mobile a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 10px;
    margin-left: -10px;
    border-radius: var(--radius-small);
    color: var(--ink-2);
    font-size: 0.94rem;
    text-decoration: none;
}
.sidenav a .icon, .sidenav-mobile a .icon { width: 1.05rem; height: 1.05rem; color: var(--muted); }
.sidenav a:hover, .sidenav-mobile a:hover { background: var(--bg-soft); color: var(--ink); }
.sidenav a[aria-current], .sidenav-mobile a[aria-current] { background: var(--brand-soft); color: var(--brand); font-weight: 600; }
.sidenav a[aria-current] .icon, .sidenav-mobile a[aria-current] .icon { color: var(--brand); }

.sidenav-mobile { display: none; }

.toc ol { margin: 0; padding: 0; list-style: none; border-left: 1px solid var(--line); }
.toc a {
    display: block;
    margin-left: -1px;
    padding: 4px 0 4px 14px;
    border-left: 2px solid transparent;
    color: var(--muted);
    font-size: 0.88rem;
    line-height: 1.4;
    text-decoration: none;
}
.toc a:hover { color: var(--ink); }
.toc a[aria-current] { border-left-color: var(--brand-2); color: var(--ink); font-weight: 600; }

@media (max-width: 1180px) {
    .article-grid { grid-template-columns: 210px minmax(0, 1fr); }
    .toc { display: none; }
}

@media (max-width: 860px) {
    .article-grid { grid-template-columns: minmax(0, 1fr); padding-top: 32px; }
    .sidenav { display: none; }
    .sidenav-mobile {
        display: block;
        border: 1px solid var(--line);
        border-radius: var(--radius);
        background: var(--bg-soft);
    }
    .sidenav-mobile summary { padding: 12px 16px; font-weight: 600; cursor: pointer; }
    .sidenav-mobile nav { padding: 4px 16px 0 26px; }
}

/* Prose */

.prose { max-width: 760px; color: var(--ink-2); font-size: 1.04rem; }
.prose > * + * { margin-top: 1.1em; }
.prose h2 {
    margin-top: 2.6em;
    padding-top: 0.2em;
    color: var(--ink);
    font-size: clamp(1.45rem, 1.3rem + 0.6vw, 1.75rem);
    letter-spacing: -0.02em;
}
.prose > h2:first-child { margin-top: 0; }
.prose h3 { margin-top: 2em; color: var(--ink); font-size: 1.2rem; letter-spacing: -0.01em; }
.prose h2 + *, .prose h3 + * { margin-top: 0.7em; }
.prose strong { color: var(--ink); font-weight: 600; }
.prose ul, .prose ol { padding-left: 1.3em; }
.prose li + li { margin-top: 0.45em; }
.prose li::marker { color: var(--muted); }
.prose :not(pre) > code { padding: 0.12em 0.4em; border-radius: 6px; background: var(--code-bg); color: var(--ink); overflow-wrap: anywhere; }
.prose pre {
    margin: 1.4em 0;
    padding: 16px 18px;
    border: 1px solid var(--line);
    border-radius: var(--radius-small);
    background: var(--code-bg);
    color: var(--ink);
    line-height: 1.55;
    overflow-x: auto;
}
.prose .shot { margin: 2em 0; }

/* A control or label in the dashboard, such as the "Enable response times" button. */
.ui {
    padding: 0.08em 0.45em;
    border: 1px solid var(--line-strong);
    border-radius: 6px;
    background: var(--bg-soft);
    color: var(--ink);
    font-size: 0.92em;
    font-weight: 600;
    white-space: nowrap;
}

kbd {
    padding: 0.1em 0.45em;
    border: 1px solid var(--line-strong);
    border-bottom-width: 2px;
    border-radius: 6px;
    background: var(--bg);
    font-size: 0.85em;
}

.prose ol.steps { padding: 0; list-style: none; counter-reset: step; }
.prose ol.steps > li { position: relative; padding-left: 46px; counter-increment: step; }
.prose ol.steps > li + li { margin-top: 1.1em; }
.prose ol.steps > li::before {
    content: counter(step);
    position: absolute;
    left: 0;
    top: 0.05em;
    display: grid;
    place-items: center;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: var(--brand-soft);
    color: var(--brand);
    font-weight: 700;
    font-size: 0.9rem;
}

.prose dl.defs { display: grid; grid-template-columns: minmax(130px, max-content) 1fr; margin: 1.4em 0; border-top: 1px solid var(--line); }
.prose dl.defs dt, .prose dl.defs dd { margin: 0; padding: 11px 0; border-bottom: 1px solid var(--line); }
.prose dl.defs dt { padding-right: 20px; color: var(--ink); font-weight: 600; }
@media (max-width: 560px) {
    .prose dl.defs { grid-template-columns: 1fr; }
    .prose dl.defs dt { padding-bottom: 0; border-bottom: 0; }
    .prose dl.defs dd { padding-top: 2px; }
}

.table-wrap { margin: 1.4em 0; overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius-small); }
.table-wrap table { width: 100%; border-collapse: collapse; font-size: 0.95rem; }
.table-wrap th, .table-wrap td { padding: 10px 14px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.table-wrap th { background: var(--bg-soft); color: var(--ink); font-weight: 600; white-space: nowrap; }
.table-wrap tr:last-child td { border-bottom: 0; }
.prose-table { max-width: 820px; margin-inline: auto; }

.note {
    display: flex;
    gap: 12px;
    padding: 16px 18px;
    border: 1px solid var(--line);
    border-left: 3px solid var(--brand-2);
    border-radius: var(--radius-small);
    background: var(--bg-soft);
    font-size: 0.98rem;
}
.note > .icon { margin-top: 0.2em; color: var(--brand-2); }
.note p + p { margin-top: 0.6em; }
.note-warn { border-left-color: var(--warn-line); background: var(--warn-bg); }
.note-warn > .icon { color: #b88a00; }

.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; }
.mini {
    padding: 18px 20px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--bg);
}
.mini h3 { margin: 0; font-size: 1.02rem; }
.mini p { margin-top: 6px; color: var(--muted); font-size: 0.95rem; }

.pager { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 4em !important; }
.pager a {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 16px 20px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    color: var(--ink);
    text-decoration: none;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.pager a:hover { border-color: var(--line-strong); box-shadow: var(--shadow-soft); }
.pager span { display: inline-flex; align-items: center; gap: 6px; color: var(--muted); font-size: 0.85rem; }
.pager span .icon { width: 1em; height: 1em; }
.pager strong { font-size: 1.05rem; }
.pager-next { grid-column: 2; text-align: right; align-items: flex-end; }

/* Architecture diagram */
.diagram { margin: 2em 0; padding: 22px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg-soft); }
.diagram-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px; }
.diagram-node { padding: 12px 14px; border: 1px solid var(--line-strong); border-radius: var(--radius-small); background: var(--bg); font-size: 0.9rem; }
.diagram-node strong { display: block; color: var(--ink); }
.diagram-node span { color: var(--muted); font-size: 0.85rem; }
.diagram-node.primary { border-color: color-mix(in srgb, var(--brand-2) 55%, var(--line-strong)); background: var(--brand-soft); }
.diagram-arrow { display: flex; align-items: center; justify-content: center; gap: 8px; margin: 10px 0; color: var(--muted); font-size: 0.85rem; }
.diagram-arrow::before, .diagram-arrow::after { content: ""; flex: 1; max-width: 120px; height: 1px; background: var(--line-strong); }

/* FAQ */
.faq-list { margin-top: 0; }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list details:first-child { border-top: 1px solid var(--line); }
.faq-list summary {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    padding: 18px 0;
    color: var(--ink);
    font-family: var(--font-display);
    font-size: 1.12rem;
    font-weight: 600;
    cursor: pointer;
    list-style: none;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; color: var(--muted); font-size: 1.4rem; font-weight: 400; line-height: 1; transition: transform 0.2s ease; }
.faq-list details[open] summary::after { transform: rotate(45deg); }
.faq-list .answer { padding: 0 0 20px; }
.faq-list .answer p + p { margin-top: 0.8em; }

/* ---------- Footer ---------- */

.site-footer { border-top: 1px solid var(--line); background: var(--bg-soft); font-size: 0.94rem; }
.footer-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) repeat(2, minmax(0, 1fr));
    gap: 40px;
    padding-top: 56px;
    padding-bottom: 40px;
}
.footer-brand p { max-width: 360px; margin-top: 14px; color: var(--muted); }
.site-footer h2 { margin-bottom: 12px; color: var(--ink); font-family: var(--font); font-size: 0.82rem; font-weight: 650; letter-spacing: 0.06em; text-transform: uppercase; }
.site-footer ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 6px; }
.site-footer ul a { color: var(--muted); text-decoration: none; }
.site-footer ul a:hover { color: var(--ink); text-decoration: underline; }
.footer-legal { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 24px; padding-top: 20px; padding-bottom: 32px; border-top: 1px solid var(--line); color: var(--muted); font-size: 0.85rem; }
.footer-legal p:last-child { max-width: 640px; }
@media (max-width: 760px) {
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .footer-brand { grid-column: 1 / -1; }
}

/* ---------- Error pages ---------- */

.error-page { padding: clamp(72px, 12vw, 140px) 0; text-align: center; }
.error-page .code { color: var(--brand); font-family: var(--font-display); font-size: 1rem; font-weight: 700; letter-spacing: 0.1em; }
.error-page h1 { margin-top: 12px; font-size: clamp(2rem, 1.6rem + 2vw, 3rem); }
.error-page .lead { max-width: 520px; margin: 16px auto 0; }

@media print {
    .site-header, .site-footer, .sidenav, .sidenav-mobile, .toc, .pager, .shot-hint { display: none !important; }
    .article-grid { display: block; }
    .shot-link { box-shadow: none; }
}

.split .actions { justify-content: flex-start; margin-top: 28px; }
.split .shot { margin: 0; }
.band code { padding: 0.1em 0.35em; border-radius: 5px; background: rgb(255 255 255 / 0.12); color: #fff; }
.faq-list summary h2 { margin: 0; font-size: inherit; font-weight: inherit; letter-spacing: -0.01em; }
.faq-list + p { margin-top: 2.4em; }

/* ---------- Contact ---------- */

.contact-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    gap: clamp(28px, 4vw, 56px);
    align-items: start;
    padding-top: clamp(32px, 4vw, 48px);
    padding-bottom: clamp(64px, 8vw, 104px);
}
@media (max-width: 900px) { .contact-grid { grid-template-columns: minmax(0, 1fr); } }

.form-card {
    padding: clamp(22px, 4vw, 40px);
    border: 1px solid var(--line);
    border-radius: calc(var(--radius) * 1.25);
    background: var(--bg);
    box-shadow: var(--shadow-soft);
}
.form-card h2 { font-size: 1.4rem; letter-spacing: -0.015em; }
.form-card > .note { margin-top: 18px; }

.contact-form { margin-top: 22px; }
.field { display: grid; gap: 6px; align-content: start; }
.contact-form > * + * { margin-top: 18px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 560px) { .field-row { grid-template-columns: 1fr; } }

.field label { color: var(--ink); font-size: 0.95rem; font-weight: 600; }
.field .optional { color: var(--muted); font-weight: 400; }

.field input, .field select, .field textarea {
    width: 100%;
    padding: 11px 13px;
    border: 1px solid var(--line-strong);
    border-radius: var(--radius-small);
    background: var(--bg);
    color: var(--ink);
    font: inherit;
    font-size: 1rem;
    line-height: 1.4;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.field textarea { min-height: 190px; resize: vertical; }
.field select {
    appearance: none;
    padding-right: 38px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%235b6878' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 16px;
}
.field input:hover, .field select:hover, .field textarea:hover { border-color: var(--muted); }
.field input:focus, .field select:focus, .field textarea:focus {
    outline: none;
    border-color: var(--brand-2);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--brand-2) 22%, transparent);
}
.field [aria-invalid="true"] { border-color: var(--bad); }
.field [aria-invalid="true"]:focus { box-shadow: 0 0 0 3px color-mix(in srgb, var(--bad) 20%, transparent); }
.field-error { color: var(--bad); font-size: 0.9rem; }
.field-hint { color: var(--muted); font-size: 0.88rem; }

.form-alert {
    margin-top: 18px;
    padding: 12px 16px;
    border: 1px solid color-mix(in srgb, var(--bad) 40%, var(--line));
    border-left: 3px solid var(--bad);
    border-radius: var(--radius-small);
    background: color-mix(in srgb, var(--bad) 7%, var(--bg));
    color: var(--ink);
    font-size: 0.97rem;
}

.form-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 20px; margin-top: 24px; }
.form-note { flex: 1 1 260px; color: var(--muted); font-size: 0.88rem; }
button.button { cursor: pointer; font-family: inherit; }

/* The honeypot: out of sight and out of the tab order, but still in the form. */
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }

.form-done { padding: 12px 0; text-align: center; }
.form-done-icon {
    display: inline-grid;
    place-items: center;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: color-mix(in srgb, var(--ok) 14%, var(--bg));
    color: var(--ok);
}
.form-done-icon .icon { width: 28px; height: 28px; }
.form-done h2 { margin-top: 18px; }
.form-done p { margin-top: 10px; color: var(--muted); }
.form-done .button { margin-top: 12px; }

.contact-aside { display: grid; gap: 16px; }
.contact-aside .mini h2 { font-family: var(--font-display); font-size: 1.05rem; }
.contact-aside .mini p { margin-top: 6px; }
.contact-aside .checks { margin-top: 10px; gap: 6px; font-size: 0.95rem; }

/* ---------- Source code (GitHub) ---------- */

.header-source {
    display: grid;
    place-items: center;
    width: 38px;
    height: 38px;
    margin-right: -14px;
    border-radius: 50%;
    color: var(--ink-2);
    transition: background-color 0.15s ease, color 0.15s ease;
}
.header-source:hover { background: var(--bg-soft); color: var(--ink); }
.header-source .icon { width: 22px; height: 22px; }
@media (max-width: 760px) {
    .header-source { margin-left: auto; margin-right: 0; }
    .header-source + .header-cta { margin-left: 4px; }
}

.hero-source { margin-top: 18px; font-size: 0.95rem; }
.hero-source a { display: inline-flex; align-items: center; gap: 8px; color: var(--muted); text-decoration: none; }
.hero-source a:hover { color: var(--ink); }
.hero-source .icon { width: 18px; height: 18px; }

.footer-source {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 16px;
    padding: 7px 14px;
    border: 1px solid var(--line-strong);
    border-radius: 999px;
    background: var(--bg);
    color: var(--ink);
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
}
.footer-source:hover { border-color: var(--muted); }
.footer-source .icon { width: 18px; height: 18px; }

.button .icon:first-child { width: 1.2em; height: 1.2em; }

.repo-card {
    display: flex;
    flex-direction: column;
    gap: 14px;
    padding: clamp(22px, 3vw, 32px);
    border: 1px solid var(--line);
    border-radius: calc(var(--radius) * 1.25);
    background: var(--bg-soft);
    box-shadow: var(--shadow);
    color: var(--ink-2);
    text-decoration: none;
    transition: transform 0.15s ease, border-color 0.15s ease;
}
.repo-card:hover { transform: translateY(-2px); border-color: var(--line-strong); }
.repo-card-head { display: flex; align-items: center; gap: 14px; }
.repo-card-head strong { display: block; color: var(--ink); font-family: var(--font-display); font-size: 1.2rem; letter-spacing: -0.01em; }
.repo-card-head > span > span { color: var(--muted); font-size: 0.9rem; }
.repo-card-logo {
    display: grid;
    place-items: center;
    flex: none;
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: #0f1a2a;
    color: #fff;
}
.repo-card-logo .icon { width: 30px; height: 30px; }
.repo-card-text { font-size: 1rem; }
.repo-card-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.repo-card-tags span {
    padding: 3px 10px;
    border-radius: 999px;
    background: var(--brand-soft);
    color: var(--brand);
    font-size: 0.8rem;
    font-weight: 600;
}
.repo-card-label { margin-top: 4px; color: var(--muted); font-size: 0.78rem; font-weight: 650; letter-spacing: 0.06em; text-transform: uppercase; }
.repo-card-code {
    display: block;
    margin-top: -6px;
    padding: 12px 14px;
    border: 1px solid var(--line);
    border-radius: var(--radius-small);
    background: var(--bg);
    color: var(--ink);
    font-size: 0.88rem;
    overflow-x: auto;
    white-space: nowrap;
}
.repo-card-link { display: inline-flex; align-items: center; gap: 6px; color: var(--link); font-weight: 600; }
.repo-card-link .icon { width: 1em; height: 1em; transition: transform 0.15s ease; }
.repo-card:hover .repo-card-link .icon { transform: translateX(3px); }
@media (prefers-color-scheme: dark) {
    .repo-card-logo { background: #e7edf5; color: #0b1220; }
}