/* assets/css/style.css */
/* Modernes Premium-Design für das Login System */

:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --secondary-color: #8b5cf6;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --info-color: #3b82f6;
    --dark-color: #1f2937;
    --light-color: #f9fafb;
    --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-2: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    --gradient-3: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--gradient-2);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow-x: hidden;
}

/* Animated Background */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 50%, rgba(120, 119, 198, 0.3), transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(139, 92, 246, 0.3), transparent 50%),
        radial-gradient(circle at 40% 80%, rgba(99, 102, 241, 0.2), transparent 50%);
    z-index: -1;
    animation: backgroundShift 15s ease infinite;
}

@keyframes backgroundShift {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(1.1); }
}

/* Navbar */
.navbar {
    background: rgba(255, 255, 255, 0.95) !important;
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.navbar-brand {
    font-weight: 700;
    background: var(--gradient-2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.navbar-brand img {
    max-height: 40px;
    margin-right: 10px;
}

/* Auth Container */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.auth-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: 24px;
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    max-width: 450px;
    width: 100%;
    border: 1px solid rgba(255, 255, 255, 0.3);
    animation: slideUp 0.6s ease;
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

.auth-header {
    background: var(--gradient-2);
    color: white;
    padding: 40px 30px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.auth-header::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    animation: rotate 20s linear infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.auth-header h2 {
    margin: 0;
    font-weight: 700;
    font-size: 28px;
    position: relative;
    z-index: 1;
}

.auth-header p {
    margin: 10px 0 0 0;
    opacity: 0.95;
    position: relative;
    z-index: 1;
}

.auth-body {
    padding: 40px 30px;
}

.form-control {
    border-radius: 12px;
    padding: 14px 18px;
    border: 2px solid #e5e7eb;
    transition: all 0.3s ease;
    font-size: 15px;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
    transform: translateY(-2px);
}

.form-label {
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 8px;
    font-size: 14px;
}

.input-group-text {
    background: var(--light-color);
    border: 2px solid #e5e7eb;
    border-right: none;
    border-radius: 12px 0 0 12px;
    color: var(--primary-color);
}

.input-group .form-control {
    border-left: none;
    border-radius: 0 12px 12px 0;
}

.input-group .form-control:focus {
    border-left: none;
}

.btn-primary {
    background: var(--gradient-2);
    border: none;
    border-radius: 12px;
    padding: 14px 30px;
    font-weight: 600;
    font-size: 16px;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-primary:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-primary:active {
    transform: translateY(-1px);
}

.btn-google {
    background: white;
    color: #1f2937;
    border: 2px solid #e5e7eb;
    border-radius: 12px;
    padding: 14px 30px;
    font-weight: 600;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    box-shadow: var(--shadow-sm);
}

.btn-google:hover {
    background: #f9fafb;
    border-color: #d1d5db;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    color: #1f2937;
}

.btn-google img {
    width: 20px;
    height: 20px;
}

.divider {
    text-align: center;
    margin: 25px 0;
    position: relative;
}

.divider::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    width: 100%;
    height: 1px;
    background: linear-gradient(to right, transparent, #e5e7eb, transparent);
}

.divider span {
    background: white;
    padding: 0 20px;
    position: relative;
    color: #6b7280;
    font-size: 14px;
    font-weight: 500;
}

.auth-footer {
    background: var(--light-color);
    padding: 25px 30px;
    text-align: center;
    border-top: 1px solid #e5e7eb;
}

.auth-footer a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.auth-footer a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

/* Alert Messages */
.alert {
    border-radius: 12px;
    border: none;
    padding: 16px 20px;
    animation: slideInDown 0.4s ease;
    box-shadow: var(--shadow-sm);
}

@keyframes slideInDown {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

.alert-success {
    background: linear-gradient(135deg, #d1fae5 0%, #a7f3d0 100%);
    color: #065f46;
}

.alert-danger {
    background: linear-gradient(135deg, #fee2e2 0%, #fecaca 100%);
    color: #991b1b;
}

.alert-warning {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    color: #92400e;
}

.alert-info {
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
    color: #1e40af;
}

/* Dashboard */
.dashboard-container {
    background: transparent;
    min-height: calc(100vh - 56px);
}

.sidebar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    min-height: calc(100vh - 56px);
    box-shadow: var(--shadow-md);
    padding: 20px 0;
    border-right: 1px solid rgba(255, 255, 255, 0.2);
}

.sidebar .nav-link {
    color: #4b5563;
    padding: 14px 24px;
    display: flex;
    align-items: center;
    gap: 12px;
    transition: all 0.3s ease;
    border-left: 3px solid transparent;
    margin: 4px 0;
    font-weight: 500;
}

.sidebar .nav-link:hover {
    background: linear-gradient(90deg, rgba(99, 102, 241, 0.1) 0%, transparent 100%);
    color: var(--primary-color);
    transform: translateX(4px);
}

.sidebar .nav-link.active {
    background: linear-gradient(90deg, rgba(99, 102, 241, 0.15) 0%, transparent 100%);
    color: var(--primary-color);
    border-left-color: var(--primary-color);
    font-weight: 600;
}

.sidebar .nav-link i {
    width: 20px;
    text-align: center;
}

.content-wrapper {
    padding: 30px;
}

.card {
    border: none;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    margin-bottom: 24px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.card-header {
    background: transparent;
    border-bottom: 2px solid #f3f4f6;
    padding: 20px 24px;
    font-weight: 700;
    color: var(--dark-color);
}

.table {
    margin-bottom: 0;
}

.table thead th {
    border-bottom: 2px solid #e5e7eb;
    font-weight: 700;
    color: var(--dark-color);
    text-transform: uppercase;
    font-size: 12px;
    letter-spacing: 0.5px;
    padding: 16px;
}

.table tbody td {
    padding: 16px;
    vertical-align: middle;
}

.badge {
    padding: 6px 12px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Stats Cards */
.stats-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 16px;
    padding: 24px;
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    gap: 20px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    transition: all 0.3s ease;
}

.stats-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.stats-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    color: white;
    box-shadow: var(--shadow-md);
}

.stats-icon.primary {
    background: var(--gradient-2);
}

.stats-icon.success {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
}

.stats-icon.warning {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
}

.stats-icon.danger {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
}

.stats-content h3 {
    margin: 0;
    font-size: 32px;
    font-weight: 800;
    background: var(--gradient-2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stats-content p {
    margin: 5px 0 0 0;
    color: #6b7280;
    font-size: 14px;
    font-weight: 500;
}

/* Footer */
.footer {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 24px;
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    margin-top: auto;
}

.footer a {
    color: var(--primary-color);
    text-decoration: none;
    margin: 0 12px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.footer a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

/* Modal Popup für Impressum/Datenschutz */
.modal-content {
    border-radius: 20px;
    border: none;
    box-shadow: var(--shadow-xl);
    backdrop-filter: blur(10px);
}

.modal-header {
    background: var(--gradient-2);
    color: white;
    border-radius: 20px 20px 0 0;
    padding: 24px 30px;
    border-bottom: none;
}

.modal-title {
    font-weight: 700;
    font-size: 24px;
}

.modal-body {
    padding: 30px;
    max-height: 60vh;
    overflow-y: auto;
}

.btn-close {
    filter: brightness(0) invert(1);
    opacity: 0.8;
}

.btn-close:hover {
    opacity: 1;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        min-height: auto;
    }
    
    .auth-card {
        margin: 20px;
    }
    
    .stats-card {
        flex-direction: column;
        text-align: center;
    }
}

/* Loading Spinner */
.spinner-border-sm {
    width: 1rem;
    height: 1rem;
    border-width: 0.15em;
}

/* Custom Checkbox */
.form-check-input {
    border-radius: 6px;
    border: 2px solid #e5e7eb;
    width: 1.25rem;
    height: 1.25rem;
}

.form-check-input:checked {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.form-check-input:focus {
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
}

/* Password Toggle */
.password-toggle {
    border-left: none !important;
    border-radius: 0 12px 12px 0 !important;
    background: var(--light-color);
    border: 2px solid #e5e7eb;
    color: var(--primary-color);
    cursor: pointer;
}

.password-toggle:hover {
    background: #e5e7eb;
}

/* Maintenance Mode */
.maintenance-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-2);
    color: white;
    text-align: center;
    padding: 20px;
}

.maintenance-container i {
    font-size: 80px;
    margin-bottom: 20px;
    animation: pulse 2s ease infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(1.1); }
}

.maintenance-container h1 {
    font-size: 48px;
    margin-bottom: 20px;
    font-weight: 800;
}

.maintenance-container p {
    font-size: 18px;
    opacity: 0.95;
}

/* Smooth Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: var(--gradient-2);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}

/* Button Secondary */
.btn-secondary {
    background: linear-gradient(135deg, #6b7280 0%, #4b5563 100%);
    border: none;
    border-radius: 12px;
    padding: 14px 30px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-md);
}

.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Dropdown */
.dropdown-menu {
    border-radius: 12px;
    border: none;
    box-shadow: var(--shadow-lg);
    padding: 8px;
}

.dropdown-item {
    border-radius: 8px;
    padding: 10px 16px;
    transition: all 0.2s ease;
}

.dropdown-item:hover {
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary-color);
}

/* Form Switch */
.form-switch .form-check-input {
    width: 3rem;
    height: 1.5rem;
    background-color: #d1d5db;
    border: none;
}

.form-switch .form-check-input:checked {
    background-color: var(--primary-color);
}

/* Text Animation */
@keyframes gradient {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.gradient-text {
    background: var(--gradient-2);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradient 3s ease infinite;
}

/* Navbar */
.navbar {
    box-shadow: 0 2px 4px rgba(0,0,0,.08);
}

.navbar-brand img {
    max-height: 40px;
    margin-right: 10px;
}

/* Auth Container */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.auth-card {
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 40px rgba(0,0,0,.1);
    overflow: hidden;
    max-width: 450px;
    width: 100%;
}

.auth-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 30px;
    text-align: center;
}

.auth-header h2 {
    margin: 0;
    font-weight: 600;
}

.auth-header p {
    margin: 10px 0 0 0;
    opacity: 0.9;
}

.auth-body {
    padding: 30px;
}

.form-control {
    border-radius: 8px;
    padding: 12px 15px;
    border: 1px solid #e3e6f0;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(78, 115, 223, 0.25);
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    border-radius: 8px;
    padding: 12px 30px;
    font-weight: 500;
    transition: all 0.3s;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.btn-google {
    background: white;
    color: #333;
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 12px 30px;
    font-weight: 500;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.btn-google:hover {
    background: #f8f9fa;
    border-color: #ccc;
}

.btn-google img {
    width: 20px;
    height: 20px;
}

.divider {
    text-align: center;
    margin: 20px 0;
    position: relative;
}

.divider::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    width: 100%;
    height: 1px;
    background: #e3e6f0;
}

.divider span {
    background: white;
    padding: 0 15px;
    position: relative;
    color: #858796;
    font-size: 14px;
}

.auth-footer {
    background: #f8f9fc;
    padding: 20px 30px;
    text-align: center;
    border-top: 1px solid #e3e6f0;
}

.auth-footer a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.auth-footer a:hover {
    text-decoration: underline;
}

/* Alert Messages */
.alert {
    border-radius: 8px;
    border: none;
    padding: 15px 20px;
}

.alert-success {
    background: #d4edda;
    color: #155724;
}

.alert-danger {
    background: #f8d7da;
    color: #721c24;
}

.alert-warning {
    background: #fff3cd;
    color: #856404;
}

.alert-info {
    background: #d1ecf1;
    color: #0c5460;
}

/* Dashboard */
.dashboard-container {
    background: #f8f9fc;
    min-height: calc(100vh - 56px);
}

.sidebar {
    background: white;
    min-height: calc(100vh - 56px);
    box-shadow: 2px 0 4px rgba(0,0,0,.08);
    padding: 20px 0;
}

.sidebar .nav-link {
    color: #5a5c69;
    padding: 12px 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: all 0.3s;
    border-left: 3px solid transparent;
}

.sidebar .nav-link:hover,
.sidebar .nav-link.active {
    background: #f8f9fc;
    color: var(--primary-color);
    border-left-color: var(--primary-color);
}

.sidebar .nav-link i {
    width: 20px;
}

.content-wrapper {
    padding: 30px;
}

.card {
    border: none;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0,0,0,.08);
    margin-bottom: 20px;
}

.card-header {
    background: white;
    border-bottom: 1px solid #e3e6f0;
    padding: 15px 20px;
    font-weight: 600;
}

.table {
    margin-bottom: 0;
}

.table thead th {
    border-bottom: 2px solid #e3e6f0;
    font-weight: 600;
    color: #5a5c69;
}

.badge {
    padding: 5px 10px;
    border-radius: 5px;
    font-weight: 500;
}

/* Stats Cards */
.stats-card {
    background: white;
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 2px 8px rgba(0,0,0,.08);
    display: flex;
    align-items: center;
    gap: 15px;
}

.stats-icon {
    width: 60px;
    height: 60px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: white;
}

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

.stats-icon.success {
    background: linear-gradient(135deg, #1cc88a 0%, #13855c 100%);
}

.stats-icon.warning {
    background: linear-gradient(135deg, #f6c23e 0%, #dda20a 100%);
}

.stats-icon.danger {
    background: linear-gradient(135deg, #e74a3b 0%, #be2617 100%);
}

.stats-content h3 {
    margin: 0;
    font-size: 28px;
    font-weight: 700;
    color: #5a5c69;
}

.stats-content p {
    margin: 5px 0 0 0;
    color: #858796;
    font-size: 14px;
}

/* Footer */
.footer {
    background: white;
    padding: 20px;
    text-align: center;
    border-top: 1px solid #e3e6f0;
    margin-top: auto;
}

.footer a {
    color: var(--primary-color);
    text-decoration: none;
    margin: 0 10px;
}

.footer a:hover {
    text-decoration: underline;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        min-height: auto;
    }
    
    .auth-card {
        margin: 20px;
    }
}

/* Loading Spinner */
.spinner-border-sm {
    width: 1rem;
    height: 1rem;
    border-width: 0.15em;
}

/* Custom Checkbox */
.form-check-input:checked {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

/* Maintenance Mode */
.maintenance-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
    padding: 20px;
}

.maintenance-container i {
    font-size: 80px;
    margin-bottom: 20px;
}

.maintenance-container h1 {
    font-size: 48px;
    margin-bottom: 20px;
}

.maintenance-container p {
    font-size: 18px;
    opacity: 0.9;
}