/* Uncommon Models - shared brand layer.
   ----------------------------------------------------------------------------
   Source of truth for the palette, type and the chrome that appears on every
   Uncommon Models property: the title bar, buttons, tag badges and card surface.
   Published from UncommonModels.github.io and consumed by the project docs sites,
   which sit under the same domain (www.uncommonmodels.com/<project>/).

   Consumers must also load the two brand faces:
     <link rel="stylesheet" href="https://fonts.googleapis.com/css2?family=Jost:ital,wght@0,100..900;1,100..900&family=League+Spartan:wght@100..900&display=swap">

   Load this BEFORE the site's own stylesheet, and before Bootstrap-dependent
   overrides on sites that use Bootstrap. Site-specific layout stays local; only
   put a rule here when two or more properties need it to look the same. */

:root {
    color-scheme: dark;

    /* surfaces */
    --bg: #0f0f0f;
    --panel: #1b1b1b;
    --panel-2: #2a2a2a;

    /* type colours */
    --text: #e6e6e6;
    --text-muted: #a6a6a6;
    --nav-text: #e4e7eb;

    /* accents */
    --accent: #f5a524;
    --accent-hi: #ffca64;
    --accent-2: #4db6ff;

    /* hairlines and washes */
    --line: rgba(255, 255, 255, 0.08);
    --line-hi: rgba(255, 255, 255, 0.14);
    --wash: rgba(255, 255, 255, 0.06);
    --accent-wash: rgba(255, 202, 100, 0.12);

    /* shape */
    --radius: 12px;
    --shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
    --shadow-hi: 0 18px 40px rgba(0, 0, 0, 0.45);

    /* type stacks */
    --sans: "Jost", system-ui, sans-serif;
    --display: "League Spartan", "Jost", sans-serif;
    --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

/* ---- title bar ---- */

.title-bar {
    background: #0f0f0f;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.22);
    padding: 12px 0;
    position: sticky;
    top: 0;
    z-index: 200;
}

.title-bar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
    width: min(1100px, 92vw);
    margin: 0 auto;
}

.brand {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    cursor: pointer;
    color: var(--text);
    transition: opacity 0.2s ease;
}

.brand:hover { opacity: 0.8; text-decoration: none; color: var(--text); }
.brand:hover .title-logo {
    filter: brightness(1.2) sepia(0.3) saturate(1.5) hue-rotate(10deg);
}

.title-logo {
    max-width: 120px;
    height: auto;
    transition: filter 0.2s ease;
}

.nav-links { display: flex; align-items: center; gap: 10px; }

.nav-link {
    color: var(--nav-text);
    font-weight: 600;
    font-size: 0.9rem;
    letter-spacing: 0.01em;
    text-decoration: none;
    padding: 6px 10px;
    border-radius: 8px;
}

.nav-link:hover { color: var(--accent-hi); background: var(--wash); }

/* ---- buttons ---- */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 18px;
    border-radius: 999px;
    font-size: 1rem;
    font-weight: 600;
    /* pinned so the button is the same height with or without Bootstrap present */
    line-height: 1.5;
    text-decoration: none;
    border: 0;
    transition: transform 0.15s ease, box-shadow 0.2s ease;
    text-align: center;
}

.btn:hover { transform: translateY(-2px); text-decoration: none; }

.btn-primary, .btn-outline-light {
    font-weight: 700;
    letter-spacing: 0.02em;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent-hi));
    color: #1a1a1a;
    box-shadow: var(--shadow);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--accent-hi), #ffd480);
    color: #000;
    box-shadow: 0 14px 36px rgba(255, 202, 100, 0.4);
}

.btn-outline-light {
    background: transparent;
    color: var(--text);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: transform 0.15s ease, box-shadow 0.2s ease, border-color 0.15s ease;
}

.btn-outline-light:hover,
.btn-outline-light:focus {
    border-color: var(--accent-hi);
    background: var(--accent-wash);
    color: var(--accent-hi);
    box-shadow: 0 10px 26px rgba(255, 202, 100, 0.25);
}

.btn-ghost {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text);
    border: 1px solid rgba(255, 255, 255, 0.12);
}

/* ---- surfaces ---- */

.card {
    background: var(--panel);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 18px;
    transition: transform 0.18s ease, box-shadow 0.22s ease, border-color 0.18s ease;
}

.card:hover {
    transform: translateY(-4px);
    border-color: var(--line-hi);
    box-shadow: var(--shadow-hi);
}

.tag-badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: var(--text);
    font-size: 12px;
    letter-spacing: 0.02em;
}

@media (max-width: 768px) {
    .title-bar-inner {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    .nav-links {
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
    }
}