:root {
    --bg: #141414;
    --panel: #1c1c1c;
    --panel-alt: #232323;
    --panel-soft: #191919;
    --field: #2c2c2c;
    --border: #3a3a3a;
    --border-soft: #2a2a2a;
    --text: #ededed;
    --text-muted: #a8a8a8;
    --text-dim: #777;
    --accent: #f5982e;
    --accent-soft: #6b431c;
    --accent-bg: rgba(245,152,46,.08);
    --green: #57c785;
    --green-bg: rgba(87,199,133,.08);
    --warn: #f2c744;
    --warn-bg: rgba(242,199,68,.08);
    --danger: #e5564a;
    --danger-bg: rgba(229,86,74,.08);
    --blue: #65a6ff;
    --blue-bg: rgba(101,166,255,.08);
    --mono: "SF Mono","Consolas","Cascadia Code","Courier New",monospace;
    --sans: "Segoe UI",Arial,Helvetica,sans-serif;
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
    background: var(--bg);
    color: var(--text);
    font-family: var(--sans);
    line-height: 1.58;
    font-size: 15px;
}

a {
    color: var(--accent);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

code,
kbd,
.code {
    font-family: var(--mono);
    font-size: .92em;
    color: var(--text);
    background: var(--field);
    border: 1px solid var(--border-soft);
    padding: 1px 5px;
    border-radius: 4px;
}

pre {
    background: #111;
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 16px;
    overflow: auto;
    color: #ddd;
    font-size: 13px;
    line-height: 1.5;
}

pre code {
    background: none;
    border: 0;
    padding: 0;
}

.layout {
    display: flex;
    max-width: 1240px;
    margin: 0 auto;
}

nav.toc {
    width: 270px;
    flex-shrink: 0;
    position: sticky;
    top: 0;
    align-self: flex-start;
    height: 100vh;
    overflow-y: auto;
    padding: 28px 18px 28px 24px;
    border-right: 1px solid var(--border-soft);
    background: rgba(20,20,20,.96);
}

nav.toc .brand {
    font-weight: 800;
    font-size: 13px;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 4px;
}

nav.toc .brand-sub {
    font-size: 11px;
    color: var(--text-dim);
    margin-bottom: 18px;
}

nav.toc .group-title {
    font-size: 10.5px;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--text-dim);
    margin: 18px 0 6px 0;
    font-weight: 800;
}

nav.toc a {
    display: block;
    color: var(--text-muted);
    font-size: 13px;
    padding: 6px 10px;
    border-radius: 6px;
    border-left: 2px solid transparent;
    margin-bottom: 2px;
}

nav.toc a:hover,
nav.toc a.active {
    color: var(--text);
    background: var(--panel-alt);
    text-decoration: none;
    border-left-color: var(--accent);
}

main {
    flex: 1;
    min-width: 0;
    padding: 0 0 80px 0;
}

header.hero {
    padding: 46px 48px 38px;
    border-bottom: 1px solid var(--border-soft);
    background: radial-gradient(ellipse 720px 280px at 18% -10%,var(--accent-bg),transparent 72%),var(--bg);
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 11px;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--accent);
    border: 1px solid var(--accent-soft);
    background: var(--accent-bg);
    padding: 5px 12px;
    border-radius: 999px;
    margin-bottom: 18px;
}

.eyebrow .dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
    display: inline-block;
}

h1 {
    font-size: 35px;
    line-height: 1.12;
    margin: 0 0 10px;
    font-weight: 800;
    letter-spacing: -.015em;
}

h1 .accent,
h2 .accent {
    color: var(--accent);
}

.lead {
    color: var(--text-muted);
    max-width: 760px;
    margin: 0 0 22px;
    font-size: 15.7px;
}

.meta-row {
    display: flex;
    gap: 22px;
    flex-wrap: wrap;
    font-size: 12.5px;
    color: var(--text-dim);
    border-top: 1px solid var(--border-soft);
    padding-top: 16px;
    margin-top: 6px;
}

.meta-row b {
    color: var(--text-muted);
    font-weight: 700;
}

section {
    padding: 40px 48px;
    border-bottom: 1px solid var(--border-soft);
}

section:last-of-type {
    border-bottom: none;
}

.section-label {
    font-size: 11px;
    letter-spacing: .16em;
    text-transform: uppercase;
    color: var(--accent);
    font-weight: 800;
    margin-bottom: 8px;
}

h2 {
    font-size: 23px;
    margin: 0 0 6px;
    font-weight: 800;
}

h3.sub {
    font-size: 15px;
    font-weight: 800;
    color: var(--text);
    margin: 30px 0 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border-soft);
}

h3.sub:first-of-type {
    margin-top: 0;
}

p.section-intro {
    color: var(--text-muted);
    max-width: 820px;
    margin: 0 0 26px;
}

.grid {
    display: grid;
    gap: 14px;
}

.grid.two {
    grid-template-columns: repeat(2,minmax(0,1fr));
}

.grid.three {
    grid-template-columns: repeat(3,minmax(0,1fr));
}

.card {
    border: 1px solid var(--border);
    border-radius: 12px;
    background: linear-gradient(180deg,var(--panel-alt),var(--panel));
    padding: 18px;
    min-width: 0;
}

.card h3,
.card h4 {
    margin: 0 0 6px;
    font-size: 16px;
}

.card p {
    margin: 0;
    color: var(--text-muted);
    font-size: 13.5px;
}

.card .mini {
    font-size: 11.5px;
    color: var(--text-dim);
    margin-top: 10px;
    font-family: var(--mono);
}

.pfx {
    display: inline-block;
    font-family: var(--mono);
    font-size: 12.5px;
    font-weight: 700;
    color: var(--accent);
    background: var(--panel-alt);
    border: 1px solid var(--border);
    border-left: 3px solid var(--accent);
    padding: 2px 8px;
    border-radius: 4px;
    white-space: nowrap;
}

.pfx.alt {
    border-left-color: var(--text-dim);
    color: var(--text-muted);
}

table.ref {
    width: 100%;
    border-collapse: collapse;
    margin: 8px 0 18px;
    font-size: 13.5px;
}

table.ref th {
    text-align: left;
    font-size: 11px;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--text-dim);
    font-weight: 800;
    padding: 0 14px 8px 0;
    border-bottom: 1px solid var(--border);
}

table.ref td {
    padding: 10px 14px 10px 0;
    border-bottom: 1px solid var(--border-soft);
    vertical-align: top;
    color: var(--text-muted);
}

table.ref td:first-child {
    white-space: nowrap;
    width: 1%;
}

table.ref td.widget {
    color: var(--text);
    font-weight: 700;
    white-space: nowrap;
    width: 1%;
}

table.ref tr:last-child td {
    border-bottom: none;
}

.callout {
    display: flex;
    gap: 12px;
    border-radius: 10px;
    padding: 14px 16px;
    margin: 18px 0;
    border: 1px solid;
    font-size: 13.5px;
}

.callout .icon {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 900;
    font-size: 13px;
    margin-top: 1px;
}

.callout .body b.label {
    display: block;
    font-size: 11px;
    letter-spacing: .12em;
    text-transform: uppercase;
    margin-bottom: 4px;
}

.callout .body p {
    margin: 0;
    color: var(--text-muted);
}

.callout .body p+p {
    margin-top: 6px;
}

.callout.tip {
    border-color: var(--border);
    background: var(--panel-alt);
}

.callout.tip .icon {
    background: var(--accent-bg);
    color: var(--accent);
}

.callout.tip b.label {
    color: var(--accent);
}

.callout.notice {
    border-color: rgba(242,199,68,.35);
    background: var(--warn-bg);
}

.callout.notice .icon {
    background: rgba(242,199,68,.18);
    color: var(--warn);
}

.callout.notice b.label {
    color: var(--warn);
}

.callout.caution {
    border-color: rgba(229,86,74,.4);
    background: var(--danger-bg);
}

.callout.caution .icon {
    background: rgba(229,86,74,.18);
    color: var(--danger);
}

.callout.caution b.label {
    color: var(--danger);
}

.callout.success {
    border-color: rgba(87,199,133,.35);
    background: var(--green-bg);
}

.callout.success .icon {
    background: rgba(87,199,133,.18);
    color: var(--green);
}

.callout.success b.label {
    color: var(--green);
}

.shot {
    border: 1px dashed var(--border);
    border-radius: 10px;
    background: repeating-linear-gradient(135deg,var(--panel-alt) 0 10px,var(--panel) 10px 20px);
    padding: 5px 5px;
    text-align: center;
    margin: 5px 0 8px;
}

.shot .shot-icon {
    width: 42px;
    height: 42px;
    margin: 0 auto 10px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: var(--panel);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-dim);
    font-size: 18px;
}

.shot .shot-label {
    font-size: 12.5px;
    color: var(--text-muted);
    font-weight: 700;
}

.shot .shot-sub {
    font-size: 11.5px;
    color: var(--text-dim);
    margin-top: 4px;
}

.checklist {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 10px;
}

.checklist li {
    display: flex;
    gap: 10px;
    align-items: flex-start;
    font-size: 13.5px;
    color: var(--text-muted);
    border: 1px solid var(--border-soft);
    border-radius: 8px;
    padding: 10px 12px;
    background: var(--panel);
}

.checklist li .num {
    flex-shrink: 0;
    width: 22px;
    height: 22px;
    border-radius: 6px;
    background: var(--accent-bg);
    border: 1px solid var(--accent-soft);
    color: var(--accent);
    font-size: 11px;
    font-weight: 900;
    display: flex;
    align-items: center;
    justify-content: center;
}

.checklist li b {
    color: var(--text);
}

.nextprev {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    margin-top: 26px;
    border-top: 1px solid var(--border-soft);
    padding-top: 20px;
}

.nextprev a {
    display: block;
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 12px 14px;
    background: var(--panel);
    min-width: 180px;
}

.nextprev span {
    display: block;
    color: var(--text-dim);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: .08em;
}

.nextprev b {
    display: block;
    color: var(--text);
    font-size: 14px;
    margin-top: 3px;
}

.footer {
    padding: 28px 48px 60px;
    color: var(--text-dim);
    font-size: 12px;
}

.footer-links {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 10px;
}

.footer-links a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border: 1px solid var(--border-soft);
    border-radius: 999px;
    padding: 5px 10px;
    color: var(--text-muted);
    background: var(--panel);
}

.footer-links a:hover {
    color: var(--accent);
    border-color: var(--accent-soft);
    text-decoration: none;
}

.badge {
    display: inline-block;
    border: 1px solid var(--border);
    background: var(--panel-alt);
    border-radius: 999px;
    padding: 3px 9px;
    font-size: 11.5px;
    color: var(--text-muted);
    margin: 2px 4px 2px 0;
}

@media (max-width:950px){
    nav.toc {
        display: none;
    }

    header.hero,
    section,
    .footer {
        padding: 28px 22px;
    }

    .grid.two,
    .grid.three {
        grid-template-columns: 1fr;
    }

    h1 {
        font-size: 30px;
    }
}

.audit-badge {
    display: inline-flex;
    gap: 6px;
    align-items: center;
    border: 1px solid var(--border);
    background: var(--panel-alt);
    border-radius: 999px;
    padding: 3px 9px;
    font-size: 11.5px;
    color: var(--text-muted);
    margin: 2px 4px 2px 0;
}

.audit-badge.ok {
    border-color: rgba(87,199,133,.35);
    color: var(--green);
    background: var(--green-bg);
}

.audit-badge.warn {
    border-color: rgba(242,199,68,.35);
    color: var(--warn);
    background: var(--warn-bg);
}

.audit-badge.bad {
    border-color: rgba(229,86,74,.35);
    color: var(--danger);
    background: var(--danger-bg);
}

.sample-grid {
    display: grid;
    grid-template-columns: repeat(2,minmax(0,1fr));
    gap: 16px;
    margin-top: 18px;
}

.sample-card {
    border: 1px solid var(--border);
    border-radius: 14px;
    background: linear-gradient(180deg,var(--panel-alt),var(--panel));
    overflow: hidden;
    min-width: 0;
}

.sample-thumb {
    display: block;
    width: 100%;
    aspect-ratio: 16/9;
    object-fit: cover;
    background: var(--panel-soft);
    border-bottom: 1px solid var(--border-soft);
}

.sample-body {
    padding: 16px;
}

.sample-body h3 {
    margin: 0 0 6px;
    font-size: 16px;
}

.sample-body p {
    margin: 0 0 14px;
    color: var(--text-muted);
    font-size: 13.5px;
}

.sample-download {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--accent-soft);
    background: var(--accent-bg);
    color: var(--accent);
    border-radius: 8px;
    padding: 7px 12px;
    font-size: 12.5px;
    font-weight: 800;
    text-decoration: none;
}

.sample-download:hover {
    border-color: var(--accent);
    color: var(--text);
    text-decoration: none;
}

@media (max-width:950px){
    .sample-grid {
        grid-template-columns: 1fr;
    }
}


/* UIWB shared click-to-enlarge images */
.shot img:not(.no-enlarge),
.sample-thumb:not(.no-enlarge),
img.zoomable-image {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    cursor: zoom-in;
    transition: transform 0.18s ease, box-shadow 0.18s ease, filter 0.18s ease;
}

.shot img:not(.no-enlarge):hover,
.sample-thumb:not(.no-enlarge):hover,
img.zoomable-image:hover {
    transform: translateY(-2px) scale(1.015);
    filter: brightness(1.06);
    box-shadow: 0 14px 36px rgba(0,0,0,0.35);
}

.image-lightbox {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 32px;
    background: rgba(0,0,0,0.86);
    backdrop-filter: blur(4px);
}

.image-lightbox.is-open {
    display: flex;
}

.image-lightbox img {
    max-width: min(96vw, 1600px);
    max-height: 90vh;
    width: auto;
    height: auto;
    border-radius: 10px;
    cursor: zoom-out;
    box-shadow: 0 18px 60px rgba(0,0,0,0.65);
}

.image-lightbox .lightbox-close {
    position: fixed;
    top: 18px;
    right: 22px;
    width: 38px;
    height: 38px;
    border: 1px solid rgba(255,255,255,0.25);
    border-radius: 999px;
    background: rgba(28,28,28,0.85);
    color: #fff;
    font-size: 26px;
    line-height: 34px;
    cursor: pointer;
}

.image-lightbox .lightbox-close:hover {
    color: var(--accent);
    border-color: var(--accent);
}

body.lightbox-open {
    overflow: hidden;
}

.shot-link {
    margin-top: 8px;
    font-size: 12px;
}

.shot-link a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border: 1px solid var(--border-soft);
    border-radius: 999px;
    padding: 5px 10px;
    background: var(--panel);
}

.shot-link a:hover {
    border-color: var(--accent-soft);
    text-decoration: none;
}