/* -- Palette (null theme) ---
 *
 * Canonical source: nvim/colors/null.lua + kist/tui/themes.py
 */
:root {
    --null-bg: #000000;
    --null-fg: #b3b3b3;
    --null-black: #000000;
    --null-red: #cc5555;
    --null-green: #55cc55;
    --null-yellow: #cdcd55;
    --null-blue: #7d7dff;
    --null-magenta: #cc55cc;
    --null-cyan: #7acaca;
    --null-white: #cccccc;
    --null-bright-black: #555555;
    --null-bright-magenta: #ff55ff;
    --null-bright-white: #ffffff;
    --null-surface: #0a0a0a;
    --null-panel: #222222;
    --null-accent: var(--null-magenta);
    --null-accent-dim: rgba(204, 85, 204, 0.3);
}

/* Override Material palette to match null theme */
[data-md-color-scheme="slate"] {
    --md-default-bg-color: var(--null-bg);
    --md-default-fg-color: var(--null-fg);
    --md-default-fg-color--light: var(--null-bright-black);
    --md-default-fg-color--lightest: var(--null-panel);
    --md-primary-fg-color: var(--null-accent);
    --md-primary-bg-color: var(--null-bright-white);
    --md-accent-fg-color: var(--null-bright-magenta);
    --md-primary-fg-color--dark: var(--null-panel);
    --md-typeset-a-color: var(--null-accent);
    --md-code-bg-color: var(--null-surface);
    --md-footer-bg-color: var(--null-surface);
    --md-footer-bg-color--dark: var(--null-bg);
}

/* -- Typography --- */
h1, h2, h3, h4, h5, h6 {
    font-family: "JetBrains Mono", "Roboto Mono", monospace;
    font-weight: 700;
    color: var(--null-bright-white) !important;
}

/* -- Page background --- */
body {
    background: linear-gradient(
        180deg,
        var(--null-bg) 0%,
        hsl(300deg 10% 4%) 40%,
        hsl(300deg 15% 7%) 70%,
        hsl(300deg 20% 10%) 100%
    );
    background-repeat: no-repeat;
    background-attachment: fixed;
}

/* -- Code and tables --- */
code {
    background: rgba(204, 85, 204, 0.08) !important;
    border: 1px solid var(--null-accent-dim) !important;
}

table {
    background: rgba(204, 85, 204, 0.06) !important;
    border: 1px solid var(--null-accent-dim) !important;
}

span.filename {
    background: rgba(204, 85, 204, 0.08) !important;
    border: 1px solid var(--null-accent-dim) !important;
    border-bottom: none !important;
    color: rgba(204, 85, 204, 0.5) !important;
}

/* -- Navigation --- */
.md-nav__link {
    background-color: transparent !important;
    box-shadow: none !important;
}

.md-nav__link--active {
    color: var(--null-accent) !important;
}

/* Hide logo + site name from desktop sidebar (already in header) */
@media (min-width: 76.25em) {
    .md-nav--primary > .md-nav__title[for="__drawer"] {
        display: none;
    }
}

/* -- Mobile drawer --- */

/* Shrink logo and inline it with the site name */
.md-nav--primary .md-nav__title .md-logo {
    position: static;
    display: inline-block;
    width: 1.2rem;
    height: 1.2rem;
    padding: 0;
    margin: 0 0.3rem 0 0;
    vertical-align: middle;
}

.md-nav--primary .md-nav__title .md-logo img,
.md-nav--primary .md-nav__title .md-logo svg {
    width: 1.2rem;
    height: 1.2rem;
}

/* Collapse the oversized drawer title (was sized for large logo) */
.md-nav--primary .md-nav__title[for="__drawer"] {
    height: auto;
    padding: 0.6rem 0.8rem;
}

/* GitHub source link in drawer */
.md-source,
.md-source__icon,
.md-source__repository {
    color: var(--null-fg) !important;
}

.md-source__icon svg {
    fill: var(--null-fg) !important;
}

nav.md-nav.md-nav--secondary {
    border-left-color: var(--null-accent) !important;
}

/* Inline header nav links */
.md-header__nav {
    display: flex;
    list-style: none;
    margin: 0 auto;
    padding: 0;
    gap: 0.2rem;
    align-items: center;
}

/* Search expands as overlay so nav links and source stay in place.
 * Inner is always absolute on desktop -- no position flip means no
 * one-frame layout shift. Container keeps fixed dimensions so the
 * flex row never redistributes. */
@media (min-width: 60em) {
    .md-search {
        width: 11.7rem;
        min-height: 2rem;
        flex-shrink: 0;
    }

    .md-search__inner {
        position: absolute !important;
        right: 0 !important;
        height: auto !important;
    }
}

.md-header__nav-link {
    color: var(--null-fg) !important;
    font-size: 0.72rem;
    text-decoration: none;
    padding: 0.4rem 0.55rem;
    position: relative;
    white-space: nowrap;
    opacity: 0.85;
    transition: opacity 0.15s ease;
}

.md-header__nav-link:hover {
    opacity: 1;
    color: var(--null-bright-white) !important;
}

.md-header__nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 50%;
    background-color: var(--null-accent);
    transition: width 0.16s ease-out, left 0.16s ease-out;
}

.md-header__nav-link:hover::after {
    width: 100%;
    left: 0;
}

.md-header__nav-link--active {
    color: var(--null-bright-white) !important;
    opacity: 1;
    font-weight: 600;
}

.md-header__nav-link--active::after {
    width: 100%;
    left: 0;
}

/* Hide inline nav on mobile (drawer takes over) */
@media (max-width: 76.1875em) {
    .md-header__nav {
        display: none;
    }
}

/* -- Header and content --- */
.md-header {
    position: sticky;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

/* Always show site name, never swap to page title */
.md-header__topic {
    opacity: 1 !important;
    transform: none !important;
    pointer-events: auto !important;
    position: relative !important;
    z-index: 0 !important;
}

/* Hide the page-title topic entirely */
.md-header__topic + .md-header__topic {
    display: none;
}

/* Only shrink title when inline nav is visible */
@media (min-width: 76.25em) {
    .md-header__title {
        flex-grow: 0;
        margin-right: 0.5rem;
    }
}

.md-header--shadow {
    box-shadow: none;
}

.md-content {
    background-color: transparent;
    padding-bottom: 2.5rem;
}

.md-nav__title {
    box-shadow: none !important;
    background-color: transparent !important;
}

/* -- Body text and links --- */
article p {
    color: var(--null-fg);
}

.md-typeset a {
    color: var(--null-accent) !important;
}

.md-typeset a:hover {
    color: var(--null-bright-magenta) !important;
}

/* -- Search --- */
.md-search__form {
    background-color: rgba(255, 255, 255, 0.06) !important;
}

[data-md-toggle="search"]:checked ~ .md-header .md-search__form {
    background-color: var(--null-surface) !important;
}

.md-search__output mark {
    color: var(--null-accent);
}

.md-search-result__more div {
    color: var(--null-accent) !important;
    opacity: 0.8;
}

/* -- Article width --- */
article {
    max-width: 840px;
    margin: 0 auto !important;
    padding: 0 1rem;

    & p mark {
        background-color: rgba(204, 85, 204, 0.2) !important;
    }
}

@media (min-width: 1220px) {
    article {
        margin: 0 0 !important;
    }
}

/* -- Footer --- */
footer .md-ellipsis {
    font-family: "JetBrains Mono", "Roboto Mono", monospace;
}