/* ===== GEMEINSAME STYLES FÜR ALLE SEITEN ===== */

/* Reset und Basis-Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: #f8fafc;
    color: #2d3748;
    line-height: 1.6;
}

/* ===== LAYOUT ===== */
.app-container {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 280px;
    background: #ffffff;
    color: #2d3748;
    padding: 0;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    z-index: 1000;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.08);
    border-right: 1px solid #e2e8f0;
}

.main-content {
    flex: 1;
    margin-left: 280px;
    padding: 0;
    min-height: 100vh;
}

.content-header {
    background: white;
    padding: 24px 32px;
    border-bottom: 1px solid #e2e8f0;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.content-title {
    font-size: 28px;
    font-weight: 700;
    color: #2d3748;
    margin: 0;
}

.content-body {
    padding: 32px;
}

/* ===== SIDEBAR STYLES ===== */
.sidebar-header {
    padding: 24px;
    border-bottom: 1px solid #e2e8f0;
    text-align: center;
    background: #f8fafc;
}

.sidebar-logo {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
    color: #2d3748;
    text-decoration: none;
}

.sidebar-subtitle {
    font-size: 14px;
    color: #718096;
    margin: 0;
}

.sidebar-nav {
    padding: 16px 0;
}

.nav-section {
    margin-bottom: 24px;
}

.nav-section-title {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 0 24px 8px;
    color: #718096;
    border-bottom: 1px solid #e2e8f0;
    margin-bottom: 8px;
}

.nav-item {
    display: flex;
    align-items: center;
    padding: 12px 24px;
    color: #4a5568;
    text-decoration: none;
    transition: all 0.2s ease;
    border-left: 3px solid transparent;
}

.nav-item:hover {
    background-color: #f7fafc;
    border-left-color: #cbd5e0;
    color: #2d3748;
}

.nav-item.active {
    background-color: #edf2f7;
    border-left-color: #3b82f6;
    color: #2d3748;
    font-weight: 600;
}

.nav-item-icon {
    font-size: 18px;
    margin-right: 12px;
    width: 20px;
    text-align: center;
}

.nav-item span {
    font-size: 14px;
}

.sidebar-footer {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 24px;
    border-top: 1px solid #e2e8f0;
    background: #f8fafc;
}

.user-profile {
    display: flex;
    align-items: center;
    margin-bottom: 16px;
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: #e2e8f0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: 600;
    margin-right: 12px;
    cursor: pointer;
    transition: background-color 0.2s ease;
    color: #4a5568;
}

.user-avatar:hover {
    background: #cbd5e0;
}

.user-info {
    flex: 1;
}

.user-name {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 2px;
    color: #2d3748;
}

.user-role {
    font-size: 12px;
    color: #718096;
}

.logout-btn {
    background: #f7fafc;
    border: 1px solid #e2e8f0;
    color: #4a5568;
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
    width: 100%;
}

.logout-btn:hover {
    background: #edf2f7;
    border-color: #cbd5e0;
    color: #2d3748;
}

/* ===== LOGIN STYLES ===== */
.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 20px;
}

.login-card {
    background: white;
    border-radius: 12px;
    padding: 40px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 400px;
}

.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.login-title {
    font-size: 28px;
    font-weight: 700;
    color: #2d3748;
    margin-bottom: 8px;
}

.login-subtitle {
    color: #718096;
    font-size: 16px;
}

.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: #4a5568;
    margin-bottom: 6px;
}

.form-input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    font-size: 16px;
    transition: border-color 0.2s ease;
}

.form-input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s ease;
    min-height: 48px;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
    background: #e2e8f0;
    color: #4a5568;
}

.btn-secondary:hover {
    background: #cbd5e0;
}

.btn-danger {
    background: #e53e3e;
    color: white;
}

.btn-danger:hover {
    background: #c53030;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 14px;
    min-height: 36px;
}

.btn-full {
    width: 100%;
}

.login-links {
    text-align: center;
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid #e2e8f0;
}

.login-links a {
    color: #667eea;
    text-decoration: none;
    font-size: 14px;
}

.login-links a:hover {
    text-decoration: underline;
}

/* ===== CARD STYLES ===== */
.card {
    background: white;
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    border: 1px solid #e2e8f0;
    margin-bottom: 24px;
}

.card-header {
    margin-bottom: 20px;
}

.card-title {
    font-size: 20px;
    font-weight: 700;
    color: #2d3748;
    margin-bottom: 8px;
}

.card-subtitle {
    color: #718096;
    font-size: 14px;
    margin: 0;
}

/* ===== UTILITY CLASSES ===== */
.hidden {
    display: none !important;
}

.text-center {
    text-align: center;
}

.text-right {
    text-align: right;
}

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mb-4 { margin-bottom: 32px; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }

.p-0 { padding: 0; }
.p-1 { padding: 8px; }
.p-2 { padding: 16px; }
.p-3 { padding: 24px; }
.p-4 { padding: 32px; }

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s ease;
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .content-header {
        padding: 16px 20px;
    }
    
    .content-body {
        padding: 20px;
    }
    
    .content-title {
        font-size: 24px;
    }
}

/* ===== ANIMATIONS ===== */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 0.3s ease;
}

/* ===== LOADING STATES ===== */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid #e2e8f0;
    border-radius: 50%;
    border-top-color: #667eea;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}