/*
 * app-sidenav.css
 * ─────────────────────────────────────────────────────────────────────────────
 * Modern accordion side navigation — replaces vanilla-pills styling.
 * Drop-in: works with the existing .vanilla-pills markup structure.
 * Fully responsive to html.light-mode / html.dark-mode.
 *
 * Deploy to : /include/styles/app-sidenav.css
 * Include in: /views/layout/page_foot.inc
 * ─────────────────────────────────────────────────────────────────────────────
 */

/* ── Variables ───────────────────────────────────────────────────── */
html {
    --snav-bg: #0f1117;
    --snav-surface: #181c27;
    --snav-border: #272d3d;
    --snav-text: #e2e8f0;
    --snav-muted: #64748b;
    --snav-accent: #4f8ef7;
    --snav-accent2: #a78bfa;
    --snav-group-bg: #1e243a;
    --snav-item-hover: #1a2035;
    --snav-active-bg: #1e3a5f;
    --snav-active-txt: #4f8ef7;
    --snav-content-bg: #181c27;
    --snav-shadow: rgba(0,0,0,.4);
    --snav-width: 220px;
}

    html.light-mode {
        --snav-bg: #f0f4ff;
        --snav-surface: #ffffff;
        --snav-border: #dde2ee;
        --snav-text: #1e2535;
        --snav-muted: #64748b;
        --snav-accent: #2563eb;
        --snav-accent2: #7c3aed;
        --snav-group-bg: #e8edf8;
        --snav-item-hover: #dbeafe;
        --snav-active-bg: #dbeafe;
        --snav-active-txt: #1d4ed8;
        --snav-content-bg: #ffffff;
        --snav-shadow: rgba(0,0,0,.08);
    }

/* ── Layout shell ────────────────────────────────────────────────── */
.vanilla-pills {
    display: flex;
    gap: 0;
    min-height: 600px;
    border: 1px solid var(--snav-border);
    border-radius: 12px;
    overflow: hidden;
    background: var(--snav-bg);
    box-shadow: 0 4px 24px var(--snav-shadow);
    transition: background .25s, border-color .25s;
}

/* ── Sidebar nav ─────────────────────────────────────────────────── */
.vanilla-pills-nav {
    width: var(--snav-width);
    min-width: var(--snav-width);
    background: var(--snav-surface);
    border-right: 1px solid var(--snav-border);
    overflow-y: auto;
    overflow-x: hidden;
    flex-shrink: 0;
    transition: background .25s, border-color .25s, width .25s;
}

    /* Slim scrollbar in nav */
    .vanilla-pills-nav::-webkit-scrollbar {
        width: 4px;
    }

    .vanilla-pills-nav::-webkit-scrollbar-track {
        background: transparent;
    }

    .vanilla-pills-nav::-webkit-scrollbar-thumb {
        background: var(--snav-border);
        border-radius: 2px;
    }

/* ── Nav list ────────────────────────────────────────────────────── */
.vanilla-pills-list {
    list-style: none;
    margin: 0;
    padding: 8px 0;
}

    /* ── Group headers (accordion toggles) ──────────────────────────── */
    .vanilla-pills-list .vanilla-pills-group {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 10px 14px 8px;
        font-size: .7rem;
        font-weight: 700;
        letter-spacing: 1.2px;
        text-transform: uppercase;
        color: var(--snav-accent);
        background: var(--snav-group-bg);
        border-top: 1px solid var(--snav-border);
        border-bottom: 1px solid var(--snav-border);
        cursor: pointer;
        user-select: none;
        margin-top: 4px;
        transition: background .15s;
    }

        .vanilla-pills-list .vanilla-pills-group:first-child {
            border-top: none;
            margin-top: 0;
        }

.vanilla-pills-group::after {
    content: '\f107'; /* fa-angle-down */
    font-family: FontAwesome;
    font-size: 12px;
    color: var(--snav-muted);
    transition: transform .25s;
}

.vanilla-pills-group.collapsed::after {
    transform: rotate(-90deg);
}

/* ── Nav items ───────────────────────────────────────────────────── */
.vanilla-pills-list li:not(.vanilla-pills-group) {
    overflow: hidden;
    max-height: 48px;
    transition: max-height .25s ease, opacity .2s;
    opacity: 1;
}

    .vanilla-pills-list li:not(.vanilla-pills-group).snav-hidden {
        max-height: 0;
        opacity: 0;
    }

    .vanilla-pills-list li:not(.vanilla-pills-group) a {
        display: flex;
        align-items: center;
        gap: 8px;
        padding: 9px 14px 9px 20px;
        font-size: .82rem;
        color: var(--snav-text) !important;
        text-decoration: none !important;
        border-left: 3px solid transparent;
        transition: background .15s, color .15s, border-color .15s, padding-left .15s;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

        .vanilla-pills-list li:not(.vanilla-pills-group) a:hover {
            background: var(--snav-item-hover) !important;
            color: var(--snav-accent) !important;
            padding-left: 22px;
            border-left-color: var(--snav-accent);
        }

        /* Active item */
        .vanilla-pills-list li:not(.vanilla-pills-group) a.snav-active {
            background: var(--snav-active-bg) !important;
            color: var(--snav-active-txt) !important;
            border-left-color: var(--snav-accent);
            font-weight: 600;
        }

/* ── Content area ────────────────────────────────────────────────── */
.vanilla-pills-content {
    flex: 1;
    min-width: 0;
    background: var(--snav-content-bg);
    padding: 16px;
    overflow-x: auto;
    transition: background .25s;
}

/* ── Loading state ───────────────────────────────────────────────── */
#vanilla-pills-container {
    min-height: 400px;
    background: var(--snav-content-bg);
    color: var(--snav-text);
    transition: background .25s;
}

    #vanilla-pills-container.snav-loading::after {
        content: 'Loading…';
        display: block;
        text-align: center;
        padding: 40px;
        color: var(--snav-muted);
        font-size: .85rem;
        letter-spacing: .5px;
    }

/* ── Responsive — collapse nav on small screens ──────────────────── */
@media (max-width: 768px) {
    .vanilla-pills {
        flex-direction: column;
    }

    .vanilla-pills-nav {
        width: 100% !important;
        min-width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--snav-border);
        max-height: 280px;
    }

    .vanilla-pills-list li:not(.vanilla-pills-group) a {
        padding: 8px 12px 8px 16px;
    }
}

/* ── bg-white override on content container ──────────────────────── */
html.dark-mode #vanilla-pills-container.bg-white,
html.dark-mode .vanilla-pills-content .bg-white {
    background-color: var(--snav-content-bg) !important;
}