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

/* --- Utilities --- */
.spacer-1 {
    margin: 1.2em 0;
}

.spacer-2 {
    margin: 2em 0;
}

.spacer-3 {
    margin: 3em 0;
}

.protostar-kicker {
    display: inline-block;
    margin-bottom: 0.8rem;
    padding: 0.2rem 0.6rem;
    border-radius: 999px;
    font-size: 0.75rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    font-weight: 600;
}

.protostar-muted {
    /* Color injected in dark mode, fallback for light mode */
    opacity: 0.8;
}

/* --- Hero Section --- */
.protostar-hero {
    position: relative;
    overflow: hidden;
    padding: 2.5rem 2rem;
    border-radius: 1.2rem;
    display: grid;
    grid-template-columns: 1.4fr 0.8fr;
    align-items: center;
    gap: 2rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    /* Light mode shadow */
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-visual img {
    width: 60%;
    max-width: 450px;
    height: auto;
    filter: drop-shadow(0 0 20px rgba(34, 211, 238, 0.1));
}

.hero-img-dark {
    display: none;
}

.hero-img-light {
    display: block;
}

@media screen and (max-width: 768px) {
    .protostar-hero {
        grid-template-columns: 1fr;
    }

    .hero-visual {
        display: none;
    }
}

/* --- Card Grids --- */
.protostar-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
    margin-top: 1.2rem;
}

.protostar-card {
    padding: 1rem;
    border-radius: 0.9rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.04);
    /* Light mode shadow */
    transition: all 0.2s ease-in-out;
}

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

/* --- MkDocs Material Overrides --- */
.protostar-terminal {
    border-radius: 0.9rem;
    overflow: hidden;
}

.protostar-terminal .highlight {
    margin: 0;
}

.md-typeset .grid.cards>ul>li,
.md-typeset .grid.cards>ol>li,
.md-typeset .grid.cards>li {
    padding: 1rem;
    border-radius: 0.9rem;
    border: 1px solid transparent;
    transition: all 0.2s ease-in-out;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
}

.md-typeset dl {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 0.8rem 0rem;
}

.md-typeset dt {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    gap: 0.4rem;
    font-weight: 600;
    padding: 0rem;
    border-radius: 0.7rem;
}

.md-typeset dd {
    margin: 0;
    padding: 0.9rem 1rem;
    border-radius: 0.7rem;
}

.md-typeset dd ul {
    margin: 0;
    padding-left: 1rem;
}

.md-typeset dd li {
    margin-bottom: 0.35rem;
}


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

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

    /* Custom Variables */
    --protostar-bg-base: #0a0f1f;
    --protostar-cyan: #22d3ee;
    --protostar-text-soft: #a9b7d0;
    --protostar-border: rgba(34, 211, 238, 0.14);
    --protostar-card-bg: rgba(255, 255, 255, 0.025);

    /* 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);

    /* --- Typography & Elements --- */
    .protostar-muted {
        color: var(--protostar-text-soft);
        opacity: 1;
    }

    .protostar-kicker {
        color: var(--protostar-cyan);
        border: 1px solid rgba(34, 211, 238, 0.16);
        background: rgba(34, 211, 238, 0.04);
    }

    /* --- Navigation & Headers --- */
    .md-header,
    .md-tabs {
        background: linear-gradient(90deg, rgba(15, 18, 36, 0.96), rgba(27, 20, 56, 0.96));
        border-bottom: 1px solid rgba(124, 77, 255, 0.16);
    }

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

    /* --- Hero Section Theming --- */
    .protostar-hero {
        border: 1px solid var(--protostar-border);
        background:
            radial-gradient(circle at 15% 20%, rgba(34, 211, 238, 0.14), transparent 24%),
            radial-gradient(circle at 85% 25%, rgba(124, 77, 255, 0.18), transparent 28%),
            radial-gradient(circle at 50% 120%, rgba(255, 255, 255, 0.05), transparent 35%),
            linear-gradient(180deg, rgba(17, 23, 43, 0.96), rgba(10, 15, 31, 0.98));
        box-shadow: 0 0 45px rgba(34, 211, 238, 0.08);
    }

    .protostar-hero::before {
        content: "";
        position: absolute;
        inset: 0;
        background-image:
            radial-gradient(2px 2px at 12% 18%, rgba(255, 255, 255, 0.55), transparent 50%),
            radial-gradient(1.5px 1.5px at 22% 72%, rgba(255, 255, 255, 0.35), transparent 50%),
            radial-gradient(1.5px 1.5px at 78% 22%, rgba(255, 255, 255, 0.45), transparent 50%),
            radial-gradient(2px 2px at 64% 64%, rgba(34, 211, 238, 0.35), transparent 50%),
            radial-gradient(1.5px 1.5px at 88% 42%, rgba(124, 77, 255, 0.35), transparent 50%);
        pointer-events: none;
        opacity: 0.8;
    }

    .protostar-hero>* {
        position: relative;
        z-index: 1;
    }

    .hero-img-dark {
        display: block;
    }

    .hero-img-light {
        display: none;
    }

    /* --- Cards --- */
    .protostar-card {
        background: var(--protostar-card-bg);
        border: 1px solid rgba(34, 211, 238, 0.08);
        backdrop-filter: blur(4px);
    }

    .protostar-card:hover {
        box-shadow: 0 0 30px rgba(34, 211, 238, 0.1);
        transform: translateY(-2px);
    }

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

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

    /* --- Markdown Elements --- */
    .protostar-terminal {
        border: 1px solid rgba(124, 77, 255, 0.18);
    }

    .md-typeset h1 {
        letter-spacing: 0.02em;
    }

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

    .md-typeset h4 {
        margin-top: 1.8rem;
        margin-bottom: 0.8rem;
        padding: 0.35rem 0.6rem;
        border-radius: 0.45rem;
        border: 1px solid var(--protostar-border);
        background: rgba(124, 77, 255, 0.04);
        transition: box-shadow 0.2s ease;
    }

    .md-typeset h4:hover {
        box-shadow: 0 0 10px rgba(124, 77, 255, 0.2);
    }

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

    .md-typeset pre>code {
        border: 1px solid rgba(124, 77, 255, 0.12);
        box-shadow: inset 0 0 0 1px rgba(34, 211, 238, 0.03);
        transition: box-shadow 0.15s ease;
    }

    .md-typeset pre>code:hover {
        box-shadow: inset 0 0 0 1px rgba(34, 211, 238, 0.1);
    }

    /* --- Definition Lists --- */
    .md-typeset dt {
        border: 1px solid var(--protostar-border);
        background: rgba(124, 77, 255, 0.08);
    }

    .md-typeset dd {
        border: 1px solid rgba(34, 211, 238, 0.12);
        background: rgba(255, 255, 255, 0.03);
    }

    /* --- 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__inner {
        padding-top: 0.4rem;
        padding-bottom: 0.4rem;
    }

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

    .md-footer {
        border-top: none;
    }
}