/* ── Sidebar ── */
.sidebar-container {
    width: 200px;
    height: 100%;
    min-height: 100%;
    background: #ecf0f1;
    border-right: 0.5px solid rgba(0, 0, 0, 1);
    display: flex;
    flex-direction: column;
    padding: 0 0 2rem;
    flex-shrink: 0;
}

/* ── Logo area ── */
.logo-container {
    padding: 1.25rem 1.5rem 1rem;
    border-bottom: 0.5px solid rgba(0, 0, 0, 1);
    margin-bottom: 1rem;
}

.logo-container a {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

.logo-container img {
    width: 80px;
    height: 80px;
    object-fit: contain;
    border-radius: 6px;
}

/* Fallback brand text if logo fails to load */
.logo-container a::after {
    font-family: 'Syne', sans-serif;
    font-size: 14px;
    font-weight: 700;
    color: #ffffff;
    letter-spacing: 0.04em;
}

/* ── Nav list ── */
.nav-container {
    flex: 1;
    padding: 0 0.75rem;
}

.nav-container ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.nav-container li a {
    display: flex;
    align-items: center;
    height: 38px;
    padding: 0 0.75rem;
    border-radius: 6px;
    font-family: 'DM Mono', monospace;
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.04em;
    color: rgba(0, 0, 0, 1);
    text-decoration: none;
    text-transform: uppercase;
    transition: background 0.12s ease, color 0.12s ease;
    position: relative;
}

.nav-container li a:hover {
    background: rgba(0, 0, 0);
    color: #1c55e6;
}

/* Active state — add class="active" to the current <a> via PHP */
.nav-container li a.active {
    background: rgba(0, 0, 0);
    color: #1c55e6;
}

/* Accent bar for active item */
.nav-container li a.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 2px;
    height: 18px;
    background: #1c55e6;
    border-radius: 0 2px 2px 0;
}

/* ── Sidebar footer (optional slot) ── */
.sidebar-footer {
    padding: 1rem 1.5rem 0;
    border-top: 0.5px solid rgba(255, 255, 255, 0.06);
    font-size: 11px;
    color: rgba(255, 255, 255, 0.2);
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

/* ── Responsive: collapse sidebar on small screens ── */
@media (max-width: 768px) {
    .sidebar-container {
        width: 100%;
        min-height: unset;
        flex-direction: row;
        align-items: center;
        padding: 0 1rem;
        border-right: none;
        border-bottom: 0.5px solid rgba(255, 255, 255, 0.06);
    }

    .logo-container {
        padding: 0.75rem 0.5rem 0.75rem 0;
        border-bottom: none;
        margin-bottom: 0;
        border-right: 0.5px solid rgba(255, 255, 255, 0.06);
        margin-right: 1rem;
    }

    .nav-container {
        padding: 0;
    }

    .nav-container ul {
        flex-direction: row;
        gap: 4px;
    }

    .nav-container li a {
        height: 32px;
        padding: 0 0.625rem;
    }

    .nav-container li a.active::before {
        top: unset;
        bottom: 0;
        left: 50%;
        transform: translateX(-50%);
        width: 18px;
        height: 2px;
        border-radius: 2px 2px 0 0;
    }

    .sidebar-footer {
        display: none;
    }

    .app-shell {
        flex-direction: column;
    }
}