:root {
    --protostar-cyan: #22d3ee;
    --protostar-radius: 8px;
    --protostar-code-bg: #f8fafc;
    --protostar-code-fg: #1e293b;
    --protostar-code-border: #e2e8f0;
    --protostar-term-prompt: #16a34a;

    --md-code-bg-color: var(--protostar-code-bg);
    --md-code-fg-color: var(--protostar-code-fg);
}

/* ====================================================================
    1. UNIVERSAL LAYOUT (Always On)
    Structure: Grids, flex, padding, margins, base typography.
==================================================================== */

/* --- Base Typography & Elements --- */
.md-typeset h1 {
    letter-spacing: 0.02em;
}

.md-typeset h2 {
    border-bottom: 1px solid var(--md-default-fg-color--lightest);
    padding-bottom: 0.35rem;
    margin-top: 2.2rem;
}

.md-typeset code {
    border-radius: 0.35rem;
}

/* --- Homepage Navigation --- */
.protostar-home-nav {
    display: flex;
    min-height: 48px;
    align-items: center;
    gap: 0.25rem;
    border-bottom: 1px solid var(--md-default-fg-color--lightest);
    margin-bottom: 3rem;
}

.md-typeset .protostar-home-nav a {
    display: inline-flex;
    min-height: 44px;
    align-items: center;
    padding: 0.55rem 0.8rem;
    border-radius: var(--protostar-radius);
    color: var(--md-default-fg-color--light);
    font-size: 0.78rem;
    font-weight: 700;
    text-decoration: none;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.md-typeset .protostar-home-nav a:hover {
    color: var(--protostar-cyan);
    background: rgba(34, 211, 238, 0.05);
}

.md-typeset .protostar-home-nav .protostar-home-nav__docs {
    color: var(--md-default-fg-color);
}

.md-typeset .protostar-home-nav .protostar-home-nav__docs::after {
    width: 5px;
    height: 5px;
    margin-left: 0.6rem;
    border-radius: 50%;
    background: var(--protostar-cyan);
    content: "";
}

/* --- Hero Install Box & Copy Button --- */
.protostar-command-label {
    margin: 2rem 0 0.5rem;
    color: var(--md-default-fg-color);
    font-size: 0.75rem;
    font-weight: 700;
}

.protostar-install {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    max-width: 32rem;
    min-height: 48px;
    overflow: hidden;
    border: 1px solid var(--protostar-code-border);
    border-radius: var(--protostar-radius);
    background: var(--protostar-code-bg);
    transition: background-color 0.25s ease, border-color 0.25s ease;
}

.protostar-install code {
    padding: 0.75rem 0.9rem;
    color: var(--protostar-code-fg);
    background: transparent;
    font-size: 0.78rem;
    transition: color 0.25s ease;
}

.protostar-install code::before {
    margin-right: 0.6rem;
    color: var(--protostar-term-prompt);
    /* Terminal green */
    content: "$";
    transition: color 0.25s ease;
}

.protostar-copy {
    align-self: stretch;
    min-width: 7.25rem;
    border: 0;
    border-left: 1px solid var(--protostar-code-border);
    color: #000;
    background: var(--protostar-cyan);
    cursor: pointer;
    font-family: inherit;
    font-size: 0.75rem;
    font-weight: 600;
    transition: background-color 0.2s ease, border-color 0.25s ease;
}

.protostar-copy:hover {
    background: #00e5ff;
}

/* --- Left Nav Visual Hierarchy --- */

/* Top-level page titles – bold & accented */
.md-sidebar .md-nav--primary>.md-nav__list>.md-nav__item--nested>.md-nav__link {
    font-weight: 700;
    color: var(--protostar-cyan);
    padding-left: 0.75rem;
}

/* --- Hero Section --- */
.protostar-hero {
    position: relative;
    padding: 1rem 0 2rem;
    display: grid;
    grid-template-columns: 1fr;
    gap: 2.5rem;
    align-items: center;
}

@media (min-width: 960px) {
    .protostar-hero {
        grid-template-columns: 1fr 1fr;
        gap: 3.5rem;
    }
}

.hero-content {
    display: flex;
    flex-direction: column;
}

/* Fluid, massive typography */
.md-typeset .hero-content h1 {
    max-width: 10ch;
    margin: 0 0 1.25rem;
    font-size: clamp(2.6rem, 4.8vw, 4.2rem);
    font-weight: 800;
    letter-spacing: -0.04em;
    line-height: 1.05;
    text-wrap: balance;
    color: #0f172a;
}

.protostar-lede {
    max-width: 54ch;
    margin: 0;
    font-size: clamp(1.05rem, 1.6vw, 1.25rem);
    line-height: 1.65;
    color: var(--md-default-fg-color--light);
}

/* --- Hero Graphic Preview --- */
.hero-preview {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
}

.hero-preview__img {
    width: 100%;
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: var(--protostar-radius);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12), 0 1px 3px rgba(0, 0, 0, 0.06);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.hero-preview__img:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 38px rgba(0, 0, 0, 0.16), 0 2px 6px rgba(0, 0, 0, 0.08);
}

/* --- Card Grids --- */
.protostar-grid,
.md-typeset .grid.cards {
    margin: 1.8rem 0;
}

.protostar-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
}

.protostar-card,
.md-typeset .grid.cards>ul>li,
.md-typeset .grid.cards>ol>li {
    padding: 1rem;
    border-radius: 0.9rem;
    border: 1px solid transparent;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
    transition: all 0.2s ease-in-out;
}

.protostar-card h3 {
    margin-top: 0;
    margin-bottom: 0.4rem;
}

/* --- Code Blocks --- */
.md-typeset .highlight {
    margin: 1.2rem 0;
    border: 1px solid var(--protostar-code-border);
    border-radius: var(--protostar-radius);
    overflow: hidden;
    transition: border-color 0.25s ease;
}

.md-typeset .highlight pre {
    margin: 0;
    line-height: 1.6;
}

.md-typeset .highlight pre code {
    padding: 0.75rem 0.9rem;
}

/* Tab and Admonition Nested Code Block Spacing */
.md-typeset .tabbed-content .highlight,
.md-typeset .admonition .highlight {
    margin: 0.8rem 0;
}

.protostar-asciinema {
    width: 100%;
    max-width: 820px;
    margin: 1.5rem 0;
    border-radius: 0.9rem;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
}

.protostar-home .highlight {
    max-width: 820px;
}

/* --- Footers --- */
.md-footer,
.md-footer-meta {
    border-top: none;
    background-color: var(--md-default-bg-color);
}

.md-footer__inner {
    padding-top: 0.4rem;
    padding-bottom: 0.4rem;
}


/* ====================================================================
   2. DARK MODE THEMING (Slate Only)
   Paint: Colors, shadows, gradients, opacity.
   ==================================================================== */

[data-md-color-scheme="slate"] {

    /* Custom Variables */
    --protostar-bg-base: #0a0a0a;
    --protostar-text-soft: #a9b7d0;
    --protostar-border: rgba(34, 211, 238, 0.14);
    --protostar-card-bg: rgba(255, 255, 255, 0.025);
    --protostar-code-bg: #0a0f1f;
    --protostar-code-fg: #cdd6f4;
    --protostar-code-border: var(--protostar-border);
    --protostar-term-prompt: #a6e3a1;

    /* MkDocs Overrides */
    --md-default-bg-color: var(--protostar-bg-base);
    --md-default-fg-color--light: var(--protostar-text-soft);
    --md-typeset-a-color: var(--protostar-cyan);
    --md-footer-bg-color: var(--protostar-bg-base);
    --md-footer-bg-color--dark: var(--protostar-bg-base);
    --md-code-bg-color: var(--protostar-code-bg);
    --md-code-fg-color: var(--protostar-code-fg);

    /* --- Navigation & Headers --- */
    .md-nav__link--active,
    .md-typeset a:hover {
        text-shadow: 0 0 10px rgba(34, 211, 238, 0.35);
    }

    .md-typeset .hero-content h1 {
        color: #ffffff;
        text-shadow: 0 0 30px rgba(255, 255, 255, 0.12);
    }


    /* --- Cards & Grids --- */
    .protostar-card,
    .md-typeset .grid.cards>ul>li,
    .md-typeset .grid.cards>ol>li {
        background: var(--protostar-card-bg);
        border: 1px solid rgba(34, 211, 238, 0.08);
        backdrop-filter: blur(4px);
    }

    .protostar-card:hover,
    .md-typeset .grid.cards>ul>li:hover,
    .md-typeset .grid.cards>ol>li:hover {
        border-color: rgba(34, 211, 238, 0.15);
        box-shadow: 0 0 30px rgba(34, 211, 238, 0.12);
        transform: translateY(-2px);
    }

    .protostar-asciinema {
        border: 1px solid var(--protostar-border);
        box-shadow: 0 0 45px rgba(34, 211, 238, 0.08);
    }

    .hero-preview__img {
        box-shadow: 0 0 35px rgba(34, 211, 238, 0.1), 0 12px 30px rgba(0, 0, 0, 0.4);
    }

    .hero-preview__img:hover {
        box-shadow: 0 0 45px rgba(34, 211, 238, 0.18), 0 16px 36px rgba(0, 0, 0, 0.5);
    }

    /* --- Tables --- */
    .md-typeset table tr:nth-child(even) td {
        background-color: rgba(40, 8, 130, 0.06);
    }

    .md-typeset table tr:nth-child(odd) td {
        background-color: #00000005;
    }

    .md-typeset table thead tr th {
        border-bottom: 1px solid var(--protostar-border);
        color: white;
        letter-spacing: 0.03em;
    }

    /* --- Footers --- */
    .md-footer,
    .md-footer-meta {
        background-color: var(--protostar-bg-base);
    }
}

.mermaid {
    overflow: auto;
    max-width: 100%;
    margin: 1.2em 0;
    background: transparent;
    border: none;
}

.mermaid svg {
    display: block;
    max-width: 100%;
    height: auto;
}