:root {
    --primary-color: #1a237e;
    --secondary-color: #5c6bc0;
    --background-color: #f3f4f8;
    --card-background: #ffffff;
    --text-color: #2a2f45;
    --border-color: #e5e7eb;
    --label-color: #6b7280;
    --border-radius: 12px;
    --spacing: 20px;
    --header-height: 140px;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
}

.dashboard {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.dashboard-header {
    background-color: var(--card-background);
    padding: 16px var(--spacing);
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing);
}

.title-section {
    margin-bottom: 16px;
}

h1 {
    color: var(--primary-color);
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 4px;
}

.description {
    color: var(--label-color);
    font-size: 12px;
}

.controls-container {
    margin-top: 16px;
}

.controls {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 16px;
}

.control-group {
    display: flex;
    flex-direction: column;
}

label {
    font-size: 14px;
    font-weight: 500;
    color: #64748b;
    margin-bottom: 8px;
}

.select-wrapper {
    position: relative;
}

select {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background-color: white;
    font-size: 14px;
    color: var(--text-color);
    cursor: pointer;
    transition: all 0.2s ease;
    appearance: none;
}

select:hover {
    border-color: var(--secondary-color);
}

select:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(92, 107, 192, 0.1);
}

.select-wrapper::after {
    content: '';
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    width: 10px;
    height: 10px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-size: contain;
    pointer-events: none;
}

.dashboard-main {
    flex: 1;
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing);
    width: 100%;
}

.chart-section {
    margin-bottom: var(--spacing);
}

.chart-container {
    background: linear-gradient(to bottom right, var(--card-background), #fcfcfc);
    border: 1px solid var(--border-color);
    padding: var(--spacing);
    border-radius: var(--border-radius);
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
    height: 500px;
    position: relative;
}

.loading {
    position: fixed;
    inset: 0;
    background-color: rgba(255, 255, 255, 0.9);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.loading.active {
    display: flex;
}

.loading-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid #e2e8f0;
    border-top-color: var(--secondary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.error-message {
    color: #ef4444;
    text-align: center;
    padding: var(--spacing);
    font-weight: 500;
}

.stats-card {
    background: linear-gradient(to bottom right, var(--card-background), #fcfcfc);
    border: 1px solid var(--border-color);
    padding: 16px;
}

.stats-label {
    color: var(--label-color);
}

.stats-value {
    color: var(--primary-color);
}

@media (max-width: 768px) {
    :root {
        --spacing: 16px;
    }

    .dashboard-header {
        padding: 12px var(--spacing);
    }

    .header-content {
        padding: 0;
    }

    h1 {
        font-size: 20px;
    }

    .subtitle {
        font-size: 13px;
    }

    .controls {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    select {
        padding: 8px 12px;
    }

    .chart-container {
        height: 350px;
    }
}

.dashboard-header, .chart-container, .stats-card {
    transition: all 0.2s ease;
}

/* Dropdown styling */
.select2-container--classic .select2-dropdown {
    border: 1px solid var(--border-color) !important;
    border-radius: 8px !important;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    margin-top: 4px;
    overflow: hidden;
}

.select2-container--classic .select2-search--dropdown {
    padding: 8px !important;
    background: var(--card-background) !important;
    border-bottom: 1px solid var(--border-color);
}

.select2-container--classic .select2-search--dropdown .select2-search__field {
    border: 1px solid var(--border-color) !important;
    border-radius: 6px !important;
    padding: 6px 10px !important;
    font-size: 14px;
    outline: none !important;
}

.select2-container--classic .select2-search--dropdown .select2-search__field:focus {
    border-color: var(--secondary-color) !important;
    box-shadow: 0 0 0 3px rgba(92, 107, 192, 0.1);
}

.select2-container--classic .select2-results__options {
    padding: 6px !important;
    background: var(--card-background) !important;
}

.select2-container--classic .select2-results__option {
    padding: 8px 10px !important;
    border-radius: 6px;
    font-size: 14px;
    color: var(--text-color);
    margin: 2px 0;
}

.select2-container--classic .select2-results__option--highlighted[aria-selected] {
    background-color: var(--secondary-color) !important;
    color: white !important;
}

/* Hover state */
.select2-container--classic.select2-container--open .select2-selection--single {
    border-color: var(--secondary-color) !important;
    box-shadow: 0 0 0 3px rgba(92, 107, 192, 0.1);
}

/* Mobile optimization */
@media (max-width: 768px) {
    .select2-container--classic .select2-selection--single {
        height: 34px;
    }
}

/* Remove select wrapper arrow for select2 */
.select-wrapper:has(.select2)::after {
    display: none;
}

.chart-container {
    position: relative;
}

.chart-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--card-background);
    z-index: 1;
}

.placeholder-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    color: var(--label-color);
}

.placeholder-emoji {
    font-size: 32px;
}

.placeholder-text {
    font-size: 14px;
}

/* Hide placeholder when chart is active */
.chart-container.has-data .chart-placeholder {
    display: none;
}

/* Tournament progress status cards */
.stats-card.winner {
    border-left: 4px solid #22c55e;  /* Green */
    background: linear-gradient(to right, rgba(34, 197, 94, 0.1), var(--card-background));
}

.stats-card.eliminated {
    border-left: 4px solid #ef4444;  /* Red */
    background: linear-gradient(to right, rgba(239, 68, 68, 0.1), var(--card-background));
}

.stats-card.active {
    border-left: 4px solid #3498db;  /* Blue */
    background: linear-gradient(to right, rgba(52, 152, 219, 0.1), var(--card-background));
}

.stats-card.winner .stats-value {
    color: #22c55e;
}

.stats-card.eliminated .stats-value {
    color: #ef4444;
}

.stats-card.active .stats-value {
    color: #3498db;
}