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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: #1f2937;
    line-height: 1.6;
}

.dashboard-container,
.testler-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
}

.header {
    text-align: center;
    margin-bottom: 3rem;
    color: white;
}

.header h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: white;
    border-radius: 1rem;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

.stat-icon {
    font-size: 2.5rem;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: #1f2937;
}

.stat-label {
    font-size: 0.875rem;
    color: #6b7280;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-primary .stat-value { color: #6366f1; }
.stat-success .stat-value { color: #10b981; }
.stat-info .stat-value { color: #3b82f6; }
.stat-warning .stat-value { color: #f59e0b; }
.stat-purple .stat-value { color: #8b5cf6; }

.content-grid {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: 1.5rem;
}

@media (max-width: 1024px) {
    .content-grid {
        grid-template-columns: 1fr;
    }
}

.card {
    background: white;
    border-radius: 1rem;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.card-header {
    padding: 1.5rem;
    border-bottom: 1px solid #e5e7eb;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-header h2 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #1f2937;
}

.card-body {
    padding: 1.5rem;
}

.btn {
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 0.875rem;
}

.btn-secondary {
    background: #6366f1;
    color: white;
}

.btn-secondary:hover {
    background: #4f46e5;
}

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

.data-table th,
.data-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid #e5e7eb;
}

.data-table th {
    font-weight: 600;
    color: #4b5563;
    background: #f3f4f6;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
}

.data-table tr:hover {
    background: #f3f4f6;
}

.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 500;
}

.badge-konu {
    background: #6366f1;
    color: white;
}

.text-success {
    color: #10b981;
    font-weight: 600;
}

.text-danger {
    color: #ef4444;
    font-weight: 600;
}

.progress-bar {
    background: #e5e7eb;
    border-radius: 9999px;
    height: 8px;
    overflow: hidden;
    margin-bottom: 0.25rem;
}

.progress-fill {
    height: 100%;
    background: #6366f1;
    transition: width 0.3s ease;
    border-radius: 9999px;
}

.progress-text {
    font-size: 0.75rem;
    color: #6b7280;
}

.empty-state {
    text-align: center;
    padding: 3rem;
    color: #6b7280;
}

.empty-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.summary-item {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem 0;
    border-bottom: 1px solid #e5e7eb;
}

.summary-item:last-child {
    border-bottom: none;
}

.summary-label {
    color: #6b7280;
    font-size: 0.875rem;
}

.summary-value {
    font-weight: 600;
    color: #1f2937;
}

.goal-item {
    margin-bottom: 1.5rem;
}

.goal-item:last-child {
    margin-bottom: 0;
}

.goal-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
}

.goal-percent {
    font-weight: 600;
    color: #6366f1;
}

.filters {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.filter-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.filter-group label {
    font-weight: 500;
    color: white;
}

.form-control {
    padding: 0.5rem 1rem;
    border: 2px solid #d1d5db;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    background: white;
    min-width: 150px;
}

.form-control:focus {
    outline: none;
    border-color: #6366f1;
}

.test-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.test-card {
    background: white;
    border-radius: 0.75rem;
    padding: 1.5rem;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border-left: 4px solid #6366f1;
}

.test-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.test-success {
    border-left-color: #10b981;
}

.test-warning {
    border-left-color: #f59e0b;
}

.test-danger {
    border-left-color: #ef4444;
}

.test-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.test-card-header h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: #1f2937;
}

.test-card-body {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.test-stats {
    display: flex;
    gap: 1.5rem;
}

.test-stat {
    display: flex;
    flex-direction: column;
}

.stat-label {
    font-size: 0.75rem;
    color: #6b7280;
    text-transform: uppercase;
}

.stat-value {
    font-weight: 600;
    color: #1f2937;
}

.test-scores {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.5rem;
}

.score-item {
    text-align: center;
    padding: 0.75rem;
    border-radius: 0.5rem;
    background: #f3f4f6;
}

.score-number {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
}

.score-label {
    font-size: 0.75rem;
    color: #6b7280;
    text-transform: uppercase;
}

.score-correct .score-number { color: #10b981; }
.score-wrong .score-number { color: #ef4444; }
.score-empty .score-number { color: #f59e0b; }
.score-total .score-number { color: #6366f1; }

.test-progress {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

@media (max-width: 768px) {
    .dashboard-container,
    .testler-container {
        padding: 1rem;
    }

    .header h1 {
        font-size: 1.75rem;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .test-grid {
        grid-template-columns: 1fr;
    }

    .filters {
        flex-direction: column;
    }

    .form-control {
        width: 100%;
    }
}