/**
 * FTP-Sync-System - Stylesheet
 */

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f4f6f9;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* Header */
header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 20px 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

header h1 {
    font-size: 28px;
    font-weight: 600;
}

header p {
    font-size: 14px;
    opacity: 0.9;
    margin-top: 5px;
}

/* Navigation */
nav {
    background: white;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    margin-bottom: 30px;
}

nav ul {
    list-style: none;
    display: flex;
    padding: 0;
    margin: 0;
}

nav ul li {
    flex: 1;
}

nav ul li a {
    display: block;
    padding: 15px 20px;
    text-decoration: none;
    color: #555;
    text-align: center;
    border-bottom: 3px solid transparent;
    transition: all 0.3s ease;
}

nav ul li a:hover,
nav ul li a.active {
    background: #f8f9fa;
    color: #667eea;
    border-bottom-color: #667eea;
}

/* Cards */
.card {
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    padding: 25px;
    margin-bottom: 25px;
}

.card h2 {
    font-size: 22px;
    margin-bottom: 20px;
    color: #2c3e50;
    border-bottom: 2px solid #667eea;
    padding-bottom: 10px;
}

.card h3 {
    font-size: 18px;
    margin-bottom: 15px;
    color: #34495e;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: white;
    border-radius: 8px;
    padding: 20px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    border-top: 4px solid #667eea;
}

.stat-card .stat-value {
    font-size: 32px;
    font-weight: bold;
    color: #667eea;
    margin-bottom: 5px;
}

.stat-card .stat-label {
    font-size: 14px;
    color: #7f8c8d;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #2c3e50;
}

.form-group input[type="text"],
.form-group input[type="number"],
.form-group input[type="password"],
.form-group select {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 14px;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: #667eea;
}

.form-group input[type="checkbox"] {
    margin-right: 8px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border: none;
    border-radius: 5px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.3s ease;
}

.btn-primary {
    background: #667eea;
    color: white;
}

.btn-primary:hover {
    background: #5568d3;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.btn-success {
    background: #27ae60;
    color: white;
}

.btn-success:hover {
    background: #229954;
}

.btn-danger {
    background: #e74c3c;
    color: white;
}

.btn-danger:hover {
    background: #c0392b;
}

.btn-secondary {
    background: #95a5a6;
    color: white;
}

.btn-secondary:hover {
    background: #7f8c8d;
}

.btn-small {
    padding: 8px 16px;
    font-size: 13px;
}

/* Tables */
table {
    width: 100%;
    border-collapse: collapse;
    background: white;
}

table thead {
    background: #f8f9fa;
}

table th {
    padding: 12px;
    text-align: left;
    font-weight: 600;
    color: #2c3e50;
    border-bottom: 2px solid #dee2e6;
}

table td {
    padding: 12px;
    border-bottom: 1px solid #dee2e6;
}

table tbody tr:hover {
    background: #f8f9fa;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 5px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
}

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

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

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

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

.badge-secondary {
    background: #e2e3e5;
    color: #383d41;
}

/* Alerts */
.alert {
    padding: 15px 20px;
    border-radius: 5px;
    margin-bottom: 20px;
    display: none;
}

.alert.show {
    display: block;
}

.alert-success {
    background: #d4edda;
    color: #155724;
    border-left: 4px solid #28a745;
}

.alert-error {
    background: #f8d7da;
    color: #721c24;
    border-left: 4px solid #dc3545;
}

.alert-info {
    background: #d1ecf1;
    color: #0c5460;
    border-left: 4px solid #17a2b8;
}

/* Loading Spinner */
.spinner {
    border: 3px solid #f3f3f3;
    border-top: 3px solid #667eea;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 20px auto;
    display: none;
}

.spinner.show {
    display: block;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
}

.modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: white;
    border-radius: 8px;
    padding: 30px;
    max-width: 600px;
    width: 90%;
    box-shadow: 0 5px 20px rgba(0,0,0,0.3);
}

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

.modal-header h3 {
    margin: 0;
    color: #2c3e50;
}

.modal-footer {
    margin-top: 25px;
    text-align: right;
}

.modal-footer .btn {
    margin-left: 10px;
}

/* Utility Classes */
.text-center {
    text-align: center;
}

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

.mt-20 {
    margin-top: 20px;
}

.mb-20 {
    margin-bottom: 20px;
}

.hidden {
    display: none;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: #7f8c8d;
}

.empty-state svg {
    width: 100px;
    height: 100px;
    margin-bottom: 20px;
    opacity: 0.5;
}

.empty-state h3 {
    font-size: 20px;
    margin-bottom: 10px;
}

.empty-state p {
    font-size: 14px;
}