/* Auth-Layout (Login-Seiten) */
.auth-layout {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: var(--space-md);
}

.auth-card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: var(--space-2xl);
    width: 100%;
    max-width: 420px;
}

.auth-card h1 {
    margin-bottom: var(--space-lg);
    text-align: center;
}

.auth-logo {
    text-align: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--space-xl);
}

/* App-Layout */
.app-layout {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--color-surface);
    border-right: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    z-index: 100;
    transition: transform var(--transition-normal);
}

.sidebar-header {
    padding: var(--space-lg);
    border-bottom: 1px solid var(--color-border);
}

.sidebar-logo {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary);
}

.sidebar-nav {
    padding: var(--space-md);
    flex: 1;
    overflow-y: auto;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-sm);
    color: var(--color-text-secondary);
    font-size: 0.9375rem;
    font-weight: 500;
    transition: all var(--transition-fast);
    margin-bottom: 2px;
}

.nav-item:hover {
    background: var(--color-primary-light);
    color: var(--color-primary);
}

.nav-item.active {
    background: var(--color-primary-light);
    color: var(--color-primary);
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Header */
.app-header {
    position: sticky;
    top: 0;
    height: var(--header-height);
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--space-lg);
    z-index: 50;
}

.header-left {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.header-title {
    font-size: 1.125rem;
    font-weight: 600;
}

.header-right {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.header-user {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

.menu-toggle {
    display: none;
    color: var(--color-text);
    padding: var(--space-xs);
}

/* Content Area */
.content-area {
    flex: 1;
    padding: var(--space-xl);
}

.container {
    max-width: var(--container-max);
    margin: 0 auto;
}

/* Bottom Navigation (Mobile) */
.bottom-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: var(--bottom-nav-height);
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    justify-content: space-around;
    align-items: center;
    z-index: 100;
}

.bottom-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    color: var(--color-text-muted);
    font-size: 0.6875rem;
    font-weight: 500;
    padding: var(--space-xs) var(--space-sm);
    transition: color var(--transition-fast);
}

.bottom-nav-item.active {
    color: var(--color-primary);
}

/* Grid-Helfer */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
}

/* Responsive */
@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
    }

    .menu-toggle {
        display: block;
    }

    .grid-3, .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .content-area {
        padding: var(--space-md);
        padding-bottom: calc(var(--bottom-nav-height) + var(--space-md));
    }

    .bottom-nav {
        display: flex;
    }

    .grid-2, .grid-3, .grid-4 {
        grid-template-columns: 1fr;
    }

    .app-header {
        padding: 0 var(--space-md);
    }
}