/* Reset ve temel stiller */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

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

/* Header */
.header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 1rem 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav {
    display: flex;
    gap: 2rem;
}

.nav-section {
    display: flex;
    gap: 2rem;
}

.nav-link {
    color: white;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    transition: all 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    background-color: rgba(255,255,255,0.2);
}

/* Main content */
.main {
    min-height: calc(100vh - 140px);
}

.section {
    display: none;
    padding: 3rem 0;
}

.section.active {
    display: block;
}

/* Login Form */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 70vh;
}

body.login-bg {
    min-height: 100vh;
    min-width: 100vw;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0;
    padding: 0;
}

.login-ortala {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-box {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    width: 100%;
    max-width: 400px;
    text-align: center;
}

.login-box h2 {
    color: #333;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.login-info {
    color: #666;
    margin-bottom: 2rem;
    font-size: 0.9rem;
}

.login-form {
    text-align: left;
}

.error-message {
    background: #ffebee;
    color: #c62828;
    padding: 1rem;
    border-radius: 5px;
    margin-bottom: 1rem;
    border-left: 4px solid #f44336;
}

.back-link {
    display: inline-block;
    margin-top: 1rem;
    color: #667eea;
    text-decoration: none;
    font-weight: 500;
}

.back-link:hover {
    text-decoration: underline;
}

.login-form .form-group input[type="text"],
.login-form .form-group input[type="password"],
.login-form .form-group input[type="email"] {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.login-form .form-group input[type="text"]:focus,
.login-form .form-group input[type="password"]:focus,
.login-form .form-group input[type="email"]:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 2px rgba(102, 126, 234, 0.2);
}

.login-form .form-group {
    margin-bottom: 1rem;
}

.login-form label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #333;
}

.login-box {
    margin: 0 auto;
}

@media (max-width: 500px) {
    .login-box {
        margin: 1rem;
        padding: 1.5rem;
    }
}

/* Dashboard */
.dashboard-header {
    text-align: center;
    margin-bottom: 3rem;
}

.dashboard-header h2 {
    font-size: 2.5rem;
    color: #333;
    margin-bottom: 1rem;
}

.dashboard-header p {
    color: #666;
    font-size: 1.1rem;
}

.dashboard-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.stat-card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    text-align: center;
    transition: transform 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
}

.stat-card i {
    font-size: 3rem;
    color: #667eea;
    margin-bottom: 1rem;
}

.stat-card h3 {
    font-size: 2.5rem;
    color: #333;
    margin-bottom: 0.5rem;
}

.stat-card p {
    color: #666;
    font-size: 1.1rem;
}

.dashboard-actions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.action-card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    text-align: center;
    transition: transform 0.3s ease;
}

.action-card:hover {
    transform: translateY(-5px);
}

.action-card h3 {
    font-size: 1.5rem;
    color: #333;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.action-card p {
    color: #666;
    margin-bottom: 2rem;
    line-height: 1.6;
}

/* Analytics */
.analytics-filters {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    margin-bottom: 2rem;
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: end;
}

.filter-group {
    flex: 1;
    min-width: 200px;
}

.filter-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #333;
}

.analytics-charts {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.chart-container {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.chart-container h3 {
    margin-bottom: 1rem;
    color: #333;
    text-align: center;
}

.analytics-table {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.analytics-table h3 {
    margin-bottom: 1.5rem;
    color: #333;
}

.table-container {
    overflow-x: auto;
}

.analytics-table table {
    width: 100%;
    border-collapse: collapse;
}

.analytics-table th,
.analytics-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid #eee;
}

.analytics-table th {
    background-color: #f8f9fa;
    font-weight: 600;
    color: #333;
}

.analytics-table tr:hover {
    background-color: #f8f9fa;
}

/* Sync Section */
.sync-status {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.status-card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.status-card h3 {
    margin-bottom: 1.5rem;
    color: #333;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding: 1rem;
    border-radius: 5px;
    background: #f8f9fa;
}

.status-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #ccc;
}

.status-dot.connected {
    background: #4CAF50;
}

.status-dot.warning {
    background: #FF9800;
}

.status-dot.disconnected {
    background: #f44336;
}

.status-text {
    font-weight: 500;
}

.credentials-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.credentials-form .form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.credentials-form label {
    font-weight: 500;
    color: #333;
}

.credentials-form input {
    padding: 0.75rem;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
}

.credentials-form input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 2px rgba(102, 126, 234, 0.2);
}

.sync-controls {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    margin-bottom: 3rem;
}

.sync-controls h3 {
    margin-bottom: 2rem;
    color: #333;
}

.sync-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
}

.sync-option {
    padding: 1.5rem;
    border: 1px solid #eee;
    border-radius: 8px;
    background: #f8f9fa;
}

.sync-option h4 {
    margin-bottom: 1rem;
    color: #333;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.sync-option p {
    color: #666;
    margin-bottom: 1.5rem;
}

.sync-logs {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.sync-logs h3 {
    margin-bottom: 1.5rem;
    color: #333;
}

.logs-container {
    overflow-x: auto;
}

#sync-logs-table {
    width: 100%;
    border-collapse: collapse;
}

#sync-logs-table th,
#sync-logs-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid #eee;
}

#sync-logs-table th {
    background-color: #f8f9fa;
    font-weight: 600;
    color: #333;
}

/* Reports */
.reports-controls {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    margin-bottom: 2rem;
}

.report-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: end;
}

.export-options {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    margin-bottom: 2rem;
}

.export-options h3 {
    margin-bottom: 1.5rem;
    color: #333;
}

.export-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.report-preview {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.report-preview h3 {
    margin-bottom: 1.5rem;
    color: #333;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 5px;
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

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

.btn-primary:hover {
    background: #5a6fd8;
    transform: translateY(-2px);
}

.btn-success {
    background: #4CAF50;
    color: white;
}

.btn-success:hover {
    background: #45a049;
    transform: translateY(-2px);
}

.btn-warning {
    background: #FF9800;
    color: white;
}

.btn-warning:hover {
    background: #f57c00;
    transform: translateY(-2px);
}

.btn-danger {
    background: #f44336;
    color: white;
}

.btn-danger:hover {
    background: #d32f2f;
    transform: translateY(-2px);
}

.btn-info {
    background: #2196F3;
    color: white;
}

.btn-info:hover {
    background: #1976D2;
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: #667eea;
    border: 2px solid #667eea;
}

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

/* Form Elements */
.form-select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
    background: white;
    cursor: pointer;
}

.form-select:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 2px rgba(102, 126, 234, 0.2);
}

.form-input {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
}

.form-input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 2px rgba(102, 126, 234, 0.2);
}

/* Data Source Indicators */
.data-source {
    padding: 0.25rem 0.5rem;
    border-radius: 3px;
    font-size: 0.8rem;
    font-weight: 500;
    text-transform: uppercase;
}

.data-source.api {
    background: #e3f2fd;
    color: #1976d2;
}

.data-source.manual {
    background: #fff3e0;
    color: #f57c00;
}

.data-source.excel {
    background: #e8f5e8;
    color: #388e3c;
}

/* Footer */
.footer {
    background: #333;
    color: white;
    text-align: center;
    padding: 2rem 0;
    margin-top: 3rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .dashboard-header h2 {
        font-size: 2rem;
    }
    
    .dashboard-stats {
        grid-template-columns: 1fr;
    }
    
    .dashboard-actions {
        grid-template-columns: 1fr;
    }
    
    .analytics-filters {
        flex-direction: column;
    }
    
    .filter-group {
        width: 100%;
    }
    
    .analytics-charts {
        grid-template-columns: 1fr;
    }
    
    .reports-grid {
        grid-template-columns: 1fr;
    }
    
    .export-buttons {
        flex-direction: column;
    }
    
    .sync-status {
        grid-template-columns: 1fr;
    }
    
    .sync-options {
        grid-template-columns: 1fr;
    }
}

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Messages */
.message {
    padding: 1rem;
    border-radius: 5px;
    margin-bottom: 1rem;
    font-weight: 500;
}

.message.success {
    background: #e8f5e8;
    color: #2e7d32;
    border-left: 4px solid #4caf50;
}

.message.error {
    background: #ffebee;
    color: #c62828;
    border-left: 4px solid #f44336;
}

.message.info {
    background: #e3f2fd;
    color: #1976d2;
    border-left: 4px solid #2196f3;
}