:root {
    --background-color: #1a1a1a;
    --card-background: #252525;
    --text-color: #ffffff;
    --current-color: #7bff7b;
    --average-color: #b388ff;
    --peak-color: #64d2ff;
    --daily-peak-color: #b388ff;
    --all-time-peak-color: #64d2ff;
    --chart-grid-color: #333333;
    --chart-line-color: #7bff7b;
    --chart-average-line-color: #b388ff;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: var(--background-color);
    color: var(--text-color);
    padding: 20px;
}

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

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

header h1 {
    font-size: 24px;
    margin-bottom: 10px;
}

.date-picker-container {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    align-items: center;
}

.time-range-buttons {
    display: flex;
    gap: 8px;
}

.time-btn {
    background-color: var(--card-background);
    color: var(--text-color);
    border: 1px solid #444;
    padding: 8px 15px;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-weight: 500;
}

.time-btn:hover {
    background-color: #363636;
}

.time-btn.active {
    background-color: var(--current-color);
    color: #121212;
    border-color: var(--current-color);
}

.date-range-picker input {
    background-color: var(--card-background);
    color: var(--text-color);
    border: 1px solid #444;
    padding: 8px 12px;
    border-radius: 4px;
    margin-right: 10px;
    min-width: 200px;
}

.date-range-picker button {
    background-color: #444;
    color: var(--text-color);
    border: none;
    padding: 8px 16px;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.date-range-picker button:hover {
    background-color: #555;
}

.stats-container {
    display: flex;
    justify-content: space-between;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.stat-card {
    background-color: var(--card-background);
    border-radius: 8px;
    padding: 20px;
    text-align: center;
    flex: 1;
    margin: 0 10px;
    min-width: 200px;
    margin-bottom: 20px;
}

.stat-card h2 {
    font-size: 36px;
    margin-bottom: 5px;
    font-weight: bold;
}

.stat-card p {
    font-size: 14px;
    opacity: 0.8;
}

.current h2 {
    color: var(--current-color);
}

.average h2 {
    color: var(--average-color);
}

.peak h2 {
    color: var(--peak-color);
}

.daily-peak h2 {
    color: var(--daily-peak-color);
}

.all-time-peak h2 {
    color: var(--all-time-peak-color);
}

.chart-container {
    background-color: var(--card-background);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 30px;
    height: 400px;
}

.legend {
    display: flex;
    justify-content: center;
    margin-top: 20px;
}

.legend-item {
    display: flex;
    align-items: center;
    margin: 0 15px;
}

.legend-color {
    display: inline-block;
    width: 20px;
    height: 3px;
    margin-right: 8px;
}

.legend-color.players {
    background-color: var(--chart-line-color);
}

.legend-color.average {
    background-color: var(--chart-average-line-color);
}

/* Calendar picker styling */
.flatpickr-calendar {
    background: var(--card-background);
    border: none;
    box-shadow: 0 3px 13px rgba(0, 0, 0, 0.3);
    border-radius: 8px;
}

.flatpickr-day {
    color: var(--text-color);
    border-radius: 4px;
}

.flatpickr-day.selected {
    background: var(--current-color);
    border-color: var(--current-color);
}

.flatpickr-day.inRange {
    background: rgba(123, 255, 123, 0.3);
    border-color: transparent;
}

.flatpickr-day.startRange,
.flatpickr-day.endRange {
    background: var(--current-color);
    border-color: var(--current-color);
}

.flatpickr-day:hover {
    background: #444;
}

.flatpickr-months .flatpickr-month,
.flatpickr-weekdays,
.flatpickr-weekday {
    background: var(--card-background);
    color: var(--text-color);
}

.flatpickr-current-month .flatpickr-monthDropdown-months,
.flatpickr-current-month input.cur-year {
    color: var(--text-color);
}

.numInputWrapper span {
    border-color: #444;
}

/* Month selection indicator */
.date-range-picker input {
    background-color: var(--card-background);
    color: var(--text-color);
    border: 1px solid #444;
    padding: 8px 12px;
    border-radius: 4px;
    margin-right: 10px;
    min-width: 220px;
    font-size: 14px;
}

/* Month selection indicator for mobile */
@media (max-width: 768px) {
    .date-picker-container {
        flex-direction: column;
        align-items: stretch;
        width: 100%;
    }

    .time-range-buttons {
        width: 100%;
        justify-content: space-between;
    }

    .time-btn {
        flex: 1;
        text-align: center;
        padding: 8px 5px;
    }

    .month-selector {
        width: 100%;
    }

    #month-dropdown {
        width: 100%;
    }
}