/**
 * Layout Styles - App Structure, Sidebar, Main Content Area
 * Golden Book Admin v2
 */

/* App Container */
.app {
    display: flex;
    min-height: 100vh;
    min-width: 0;
}

/* Sidebar */
.sidebar {
    width: 240px;
    background: var(--primary);
    color: white;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
    flex-shrink: 0;
}

.sidebar h1 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.sidebar .subtitle {
    font-size: 0.75rem;
    color: rgba(255,255,255,0.5);
    margin-bottom: 2rem;
}

.sidebar nav {
    flex: 1;
}

.sidebar nav a {
    display: block;
    color: rgba(255,255,255,0.7);
    padding: 0.75rem 1rem;
    border-radius: 6px;
    margin-bottom: 0.25rem;
    transition: all 0.2s;
}

.sidebar nav a:hover,
.sidebar nav a.active {
    background: rgba(255,255,255,0.1);
    color: white;
    text-decoration: none;
}

.sidebar .user-info {
    padding-top: 1rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 0.875rem;
    color: rgba(255,255,255,0.5);
}

.sidebar .user-info strong {
    color: white;
}

.sidebar .logout-btn {
    background: none;
    border: none;
    color: rgba(255,255,255,0.5);
    cursor: pointer;
    padding: 0.5rem 0;
    font-size: 0.875rem;
}

.sidebar .logout-btn:hover {
    color: white;
}

/* Main Content Area */
.main {
    flex: 1;
    padding: 2rem;
    min-width: 0;
}

.main-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.main-header h2 {
    font-size: 1.5rem;
    font-weight: 600;
}

/* Grid System */
.grid {
    display: grid;
    gap: 1rem;
}

.grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

.installations-grid {
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
}

.gammes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 1.25rem;
}

.types-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.25rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }

    .sidebar {
        display: none;
    }

    .main {
        padding: 1rem;
        overflow-x: hidden;
    }

    .main-header {
        flex-wrap: wrap;
        gap: 0.75rem;
    }

    .main-header h2 {
        width: 100%;
    }

    .main-header .btn {
        white-space: normal;
    }
}

@media (max-width: 900px) {
    .images-row {
        grid-template-columns: 1fr;
    }
}