/* KIWI Flight Systems — tactical instrument datasheet theme */

/* ── Design tokens ── */
:root {
    --content-max-width: 900px;

    --display-font: 'Play', 'Chakra Petch', system-ui, sans-serif;
    --body-font: 'Golos Text', 'Barlow', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --mono-font: 'JetBrains Mono', 'Space Mono', 'Source Code Pro', Consolas, monospace;

    /* brand teal — links, CTA, active nav */
    --kiwi-accent: #0b6b63;
    --kiwi-accent-light: #0d9488;
    --kiwi-accent-dark: #095e56;

    /* data amber — section numbers, emphasis */
    --kiwi-amber: #a9781c;
    --kiwi-amber-bright: #d4a843;

    /* surfaces (light) */
    --kiwi-paper: #f0ebe3;
    --kiwi-paper-raised: #f6f2ea;
    --kiwi-ink: #1a1a1a;
    --kiwi-ink-muted: #6f6555;
    --kiwi-hairline: #d6cfc4;
    --kiwi-hairline-strong: #c2b9a9;

    /* code surfaces (light) */
    --kiwi-code-bg: #f6f2ea;
    --kiwi-inline-bg: #e7ddcd;
    --kiwi-inline-fg: #8a5a12;

    --sidebar-target-width: 280px;
    --menu-bar-height: 56px;
}

html, body {
    font-family: var(--body-font);
}

/* ── Light theme — warm paper ── */
.light, html:not(.js) {
    --bg: var(--kiwi-paper);
    --fg: var(--kiwi-ink);

    --sidebar-bg: var(--kiwi-paper);
    --sidebar-fg: #4a453c;
    --sidebar-non-existant: #a99f8e;
    --sidebar-active: var(--kiwi-accent);
    --sidebar-spacer: var(--kiwi-hairline);

    --scrollbar: #b8ae9c;
    --icons: #8a8172;
    --icons-hover: var(--kiwi-ink);

    --links: var(--kiwi-accent-dark);
    --inline-code-color: var(--kiwi-inline-fg);

    --theme-popup-bg: var(--kiwi-paper-raised);
    --theme-popup-border: var(--kiwi-hairline-strong);
    --theme-hover: #e7e0d5;

    --quote-bg: var(--kiwi-paper-raised);
    --quote-border: var(--kiwi-hairline-strong);

    --table-border-color: var(--kiwi-hairline);
    --table-header-bg: transparent;
    --table-alternate-bg: transparent;

    --searchbar-border-color: var(--kiwi-hairline-strong);
    --searchbar-bg: var(--kiwi-paper-raised);
    --searchbar-fg: var(--kiwi-ink);
    --searchbar-shadow-color: var(--kiwi-hairline-strong);
    --searchresults-border-color: var(--kiwi-hairline);
    --searchresults-li-bg: #e7e0d5;
    --search-mark-bg: #f0d28a;

    --footnote-highlight: var(--kiwi-amber);
    --sidebar-header-border-color: var(--kiwi-accent);
}

/* ── Dark themes — keep teal accent, retune hairlines/amber ── */
.navy, .coal, .ayu {
    --sidebar-active: var(--kiwi-accent-light);
    --links: var(--kiwi-accent-light);
    --kiwi-ink: var(--fg);
    --kiwi-ink-muted: rgba(255, 255, 255, 0.5);
    --kiwi-hairline: rgba(255, 255, 255, 0.12);
    --kiwi-hairline-strong: rgba(255, 255, 255, 0.24);
    --kiwi-amber: var(--kiwi-amber-bright);
    --kiwi-code-bg: rgba(255, 255, 255, 0.04);
    --kiwi-inline-bg: rgba(255, 255, 255, 0.08);
    --kiwi-inline-fg: var(--kiwi-amber-bright);
}

/* ── Menu bar — paper masthead (light) ── */
.light #mdbook-menu-bar {
    background-color: var(--kiwi-paper) !important;
    border-block-end: 1px solid var(--kiwi-hairline-strong) !important;
}
.light #mdbook-menu-bar,
.light #mdbook-menu-bar .icon-button,
.light #mdbook-menu-bar a,
.light #mdbook-menu-bar .fa-svg,
.light #mdbook-menu-bar .menu-title {
    color: var(--kiwi-ink) !important;
}
.light #mdbook-menu-bar .icon-button:hover,
.light #mdbook-menu-bar .fa-svg:hover,
.light #mdbook-menu-bar a:hover {
    color: var(--kiwi-accent) !important;
}

/* ── Text wordmark ── */
.menu-title {
    font-size: 1rem;
    margin: 0;
}
.brand {
    display: inline-flex;
    align-items: baseline;
    gap: 0.55em;
    text-decoration: none !important;
    line-height: 1;
}
.brand-mark {
    font-family: var(--display-font);
    font-weight: 700;
    font-size: 1.3rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--kiwi-accent) !important;
}
.navy .brand-mark, .coal .brand-mark, .ayu .brand-mark {
    color: var(--kiwi-accent-light) !important;
}
.brand-sub {
    font-family: var(--mono-font);
    font-weight: 500;
    font-size: 0.62rem;
    letter-spacing: 0.24em;
    text-transform: uppercase;
    color: var(--kiwi-ink-muted) !important;
    opacity: 0.85;
}
@media only screen and (max-width: 540px) {
    .brand-sub { display: none; }
}

/* ── Header nav link (Shop) ── */
.header-nav-link {
    font-family: var(--mono-font);
    text-transform: uppercase;
    font-size: 0.7em;
    font-weight: 500;
    letter-spacing: 0.14em;
    padding: 0 12px;
    line-height: var(--menu-bar-height);
    text-decoration: none !important;
    transition: color 0.2s;
}
.light .header-nav-link { color: var(--kiwi-ink) !important; }
.light .header-nav-link:hover { color: var(--kiwi-accent) !important; }

/* ── Headings — Play display ── */
h1, h2, h3 {
    font-family: var(--display-font);
    font-weight: 700;
}

.content main > h1:first-child {
    font-size: 2.05em;
    line-height: 1.12;
    letter-spacing: 0.01em;
    margin-bottom: 0.7em;
    padding-bottom: 0.45rem;
    border-bottom: 2px solid var(--kiwi-ink);
}

.content h2 {
    font-size: 1.35em;
    line-height: 1.2;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    margin-top: 2.2em;
    padding-bottom: 0.35rem;
    border-bottom: 1px solid var(--kiwi-hairline-strong);
}

/* Signature — auto-numbered sections (resets per page) */
.content { counter-reset: kiwi-sec; }
.content h2 {
    counter-increment: kiwi-sec;
}
.content h2::before {
    content: counter(kiwi-sec, decimal-leading-zero) "\00a0\00a0";
    font-family: var(--mono-font);
    font-weight: 700;
    color: var(--kiwi-amber);
}

.content h3 {
    font-size: 1.22em;
    letter-spacing: 0.01em;
    margin-top: 1.8em;
}

.content h4 {
    font-family: var(--body-font);
    font-weight: 600;
    font-size: 1.02em;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--kiwi-ink-muted);
}

/* ── Body copy — airy ── */
.content { font-family: var(--body-font); }
.content p, .content li {
    line-height: 1.7;
}

/* ── Tables — hairline datasheet ── */
.content table {
    width: 100%;
    font-family: var(--mono-font);
    font-size: 0.8em;
    border-collapse: collapse;
    border: none;
    border-top: 2px solid var(--kiwi-ink);
    border-bottom: 2px solid var(--kiwi-ink);
    margin: 1.6em 0;
    border-radius: 0;
    overflow: visible;
}
.content table thead th {
    text-align: left;
    font-weight: 700;
    font-size: 0.94em;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--kiwi-ink);
    background: transparent;
    padding: 9px 14px;
    border: none;
    border-bottom: 1.5px solid var(--kiwi-hairline-strong);
}
.content table td {
    padding: 6px 14px;
    border: none;
    border-top: 1px solid var(--kiwi-hairline);
}
.content table tbody tr:first-child td {
    border-top: none;
}
/* group every 5 rows per MIL-STD 5.17.20.3.14 */
.content table tbody tr:nth-child(5n) td {
    border-bottom: 1px solid var(--kiwi-hairline-strong);
}

/* ── Code ── */
code {
    font-family: var(--mono-font);
    font-size: 0.85em !important;
}
pre {
    border: 1px solid var(--kiwi-hairline-strong);
    border-left: 3px solid var(--kiwi-accent);
    border-radius: 0;
    background: var(--kiwi-code-bg) !important;
    padding: 1em 1.1em !important;
}
:not(pre) > code {
    background: var(--kiwi-inline-bg);
    color: var(--kiwi-inline-fg);
    padding: 1px 6px;
    border-radius: 3px;
    border: 1px solid var(--kiwi-hairline);
    font-size: 0.86em !important;
}

/* ── Firmware download links ── */
.content a[href$=".zip"] {
    display: inline-block;
    font-family: var(--mono-font);
    font-size: 0.85em;
    font-weight: 500;
}

/* ── Sidebar ── */
.sidebar .chapter li.part-title {
    font-family: var(--mono-font);
    text-transform: uppercase;
    font-size: 0.68em;
    font-weight: 600;
    letter-spacing: 0.16em;
    color: var(--kiwi-ink-muted);
    opacity: 1;
    margin-top: 1.7em;
    padding: 0 14px 0.4em;
    border-bottom: 1px solid var(--kiwi-hairline);
    margin-bottom: 0.5em;
}
.sidebar .chapter li a {
    font-family: var(--body-font);
    font-size: 0.9em;
    min-height: 34px;
    display: flex;
    align-items: center;
    padding: 5px 14px;
    border-radius: 0;
    border-left: 2px solid transparent;
    transition: background-color 0.15s, border-color 0.15s;
}
.sidebar .chapter li a:hover {
    background-color: rgba(11, 107, 99, 0.07);
}
.sidebar .chapter li a.active {
    background-color: rgba(11, 107, 99, 0.06);
    border-left: 2px solid var(--kiwi-accent);
    color: var(--kiwi-accent);
    font-weight: 600;
}
.navy .sidebar .chapter li a:hover,
.coal .sidebar .chapter li a:hover,
.ayu .sidebar .chapter li a:hover {
    background-color: rgba(13, 148, 136, 0.1);
}
.navy .sidebar .chapter li a.active,
.coal .sidebar .chapter li a.active,
.ayu .sidebar .chapter li a.active {
    background-color: rgba(13, 148, 136, 0.12);
    border-left-color: var(--kiwi-accent-light);
    color: var(--kiwi-accent-light);
}

/* ── Rules & media ── */
hr {
    border: none;
    border-top: 1px solid var(--kiwi-hairline-strong);
    margin: 2.5em 0;
}
.content img {
    border-radius: 2px;
    border: 1px solid var(--kiwi-hairline);
}
.content ul, .content ol {
    padding-left: 1.5em;
}
.content li {
    margin-bottom: 0.25em;
}

/* ── Prev/next navigation cards ── */
.nav-wide-wrapper {
    display: none !important;
}
.nav-wrapper {
    display: flex !important;
    gap: 16px;
    margin-block-start: 48px;
    padding-bottom: 24px;
}
.mobile-nav-chapters {
    flex: 1;
    display: flex;
    align-items: center;
    padding: 16px 20px;
    border: 1px solid var(--kiwi-hairline-strong);
    border-radius: 2px;
    background-color: var(--bg);
    font-family: var(--mono-font);
    font-size: 0.82em;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    text-decoration: none !important;
    transition: border-color 0.2s, box-shadow 0.2s;
    width: auto;
}
.mobile-nav-chapters:hover {
    border-color: var(--kiwi-accent);
    box-shadow: 0 2px 8px rgba(11, 107, 99, 0.12);
}
.mobile-nav-chapters.previous { justify-content: flex-start; }
.mobile-nav-chapters.next {
    justify-content: flex-end;
    float: none;
    right: auto;
}
.mobile-nav-chapters .fa-svg { font-size: 0.8em; }

/* ── Buy Online button (inline + sticky) ── */
.buy-online::before, .buy-online-sticky::before {
    content: '';
    display: inline-block;
    width: 1em;
    height: 1em;
    margin-right: 0.45em;
    vertical-align: -0.12em;
    background: currentColor;
    -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='9' cy='21' r='1'/%3E%3Ccircle cx='20' cy='21' r='1'/%3E%3Cpath d='M1 1h4l2.68 13.39a2 2 0 0 0 2 1.61h9.72a2 2 0 0 0 2-1.61L23 6H6'/%3E%3C/svg%3E") no-repeat center;
    mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='9' cy='21' r='1'/%3E%3Ccircle cx='20' cy='21' r='1'/%3E%3Cpath d='M1 1h4l2.68 13.39a2 2 0 0 0 2 1.61h9.72a2 2 0 0 0 2-1.61L23 6H6'/%3E%3C/svg%3E") no-repeat center;
    -webkit-mask-size: contain;
    mask-size: contain;
}
.buy-online {
    display: inline-block;
    padding: 0.6em 1.5em;
    margin: 0.6em 0 1em;
    background-color: var(--kiwi-accent);
    color: #fff !important;
    text-decoration: none !important;
    border-radius: 2px;
    font-family: var(--mono-font);
    font-weight: 500;
    font-size: 0.85em;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    transition: background-color 0.2s, box-shadow 0.2s;
    box-shadow: 0 2px 6px rgba(9, 94, 86, 0.25);
}
.buy-online:hover {
    background-color: var(--kiwi-accent-dark);
    box-shadow: 0 4px 12px rgba(9, 94, 86, 0.35);
}
.buy-online-sticky {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 1000;
    padding: 0.55em 1.3em;
    background-color: var(--kiwi-accent);
    color: #fff !important;
    text-decoration: none !important;
    border-radius: 2px;
    font-family: var(--mono-font);
    font-weight: 500;
    font-size: 0.8em;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    box-shadow: 0 4px 16px rgba(9, 94, 86, 0.4);
    opacity: 0;
    pointer-events: none;
    transform: translateY(12px);
    transition: opacity 0.3s, transform 0.3s;
}
.buy-online-sticky.visible {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}
.buy-online-sticky:hover {
    background-color: var(--kiwi-accent-dark);
    box-shadow: 0 6px 20px rgba(9, 94, 86, 0.5);
}
.navy .buy-online, .coal .buy-online, .ayu .buy-online,
.navy .buy-online-sticky, .coal .buy-online-sticky, .ayu .buy-online-sticky {
    background-color: var(--kiwi-accent-light);
}
.navy .buy-online:hover, .coal .buy-online:hover, .ayu .buy-online:hover,
.navy .buy-online-sticky:hover, .coal .buy-online-sticky:hover, .ayu .buy-online-sticky:hover {
    background-color: var(--kiwi-accent);
}

/* ── Quick-nav — mono section index bar ── */
.quick-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0;
    margin: 1em 0 2.2em;
    padding: 0.2em 0;
    border-top: 1px solid var(--kiwi-hairline);
    border-bottom: 1px solid var(--kiwi-hairline);
}
.quick-nav a {
    font-family: var(--mono-font);
    text-transform: uppercase;
    font-size: 0.68em;
    font-weight: 500;
    letter-spacing: 0.09em;
    color: var(--kiwi-ink-muted) !important;
    text-decoration: none !important;
    padding: 0.45em 0.95em;
    border: none;
    border-right: 1px solid var(--kiwi-hairline);
    border-radius: 0;
    transition: color 0.15s, background-color 0.15s;
}
.quick-nav a:last-child { border-right: none; }
.quick-nav a:hover {
    color: var(--kiwi-accent) !important;
    background-color: rgba(11, 107, 99, 0.05);
}
.navy .quick-nav a:hover, .coal .quick-nav a:hover, .ayu .quick-nav a:hover {
    color: var(--kiwi-accent-light) !important;
    background-color: rgba(13, 148, 136, 0.08);
}