:root {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-color: #38bdf8;
    --accent-hover: #0ea5e9;
    --border-color: #334155;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    height: 100vh;
    overflow: hidden;
}

.app-container {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.app-header {
    background-color: var(--bg-secondary);
    padding: 1rem 2rem;
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
    z-index: 10;
}

.app-header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.app-header p {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.dashboard-content {
    display: flex;
    flex: 1;
    overflow: hidden;
}

.controls-panel {
    width: 300px;
    background-color: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    padding: 1.5rem;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.control-group h3 {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-weight: 600;
}

.view-switcher {
    display: flex;
    gap: 0.5rem;
    background-color: var(--bg-primary);
    padding: 0.25rem;
    border-radius: 0.5rem;
    flex-wrap: wrap;
}

.view-btn {
    flex: 1;
    background: none;
    border: none;
    color: var(--text-secondary);
    padding: 0.5rem;
    font-size: 0.7rem;
    font-weight: 600;
    cursor: pointer;
    border-radius: 0.375rem;
    transition: all 0.2s;
    min-width: 80px;
}

.view-btn:hover {
    color: var(--text-primary);
}

.view-btn.active {
    background-color: var(--bg-tertiary);
    color: var(--accent-color);
}

.date-inputs {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.input-wrapper {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.input-wrapper label {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

input[type="date"] {
    background-color: #334155;
    border: 1px solid #475569;
    color: #f8fafc;
    padding: 0.5rem;
    border-radius: 0.375rem;
    font-family: inherit;
    outline: none;
    transition: all 0.2s;
    cursor: pointer;
}

input[type="date"]::-webkit-calendar-picker-indicator {
    filter: invert(1);
    cursor: pointer;
    opacity: 0.8;
}

input[type="date"]::-webkit-calendar-picker-indicator:hover {
    opacity: 1;
}

input[type="date"]:focus {
    border-color: var(--accent-color);
    background-color: #3f4f63;
}

select.country-select {
    background-color: #334155;
    border: 1px solid #475569;
    color: #f8fafc;
    padding: 0.5rem;
    border-radius: 0.375rem;
    font-family: inherit;
    outline: none;
    transition: all 0.2s;
    cursor: pointer;
    width: 100%;
}

select.country-select:focus {
    border-color: var(--accent-color);
    background-color: #3f4f63;
}

select.country-select option {
    background-color: #1e293b;
    color: #f8fafc;
}

.group-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.btn-text {
    background: none;
    border: none;
    color: var(--accent-color);
    font-size: 0.75rem;
    cursor: pointer;
    font-weight: 600;
}

.btn-text:hover {
    color: var(--accent-hover);
    text-decoration: underline;
}

.country-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    max-height: 400px;
    overflow-y: auto;
    padding-right: 0.5rem;
}

/* Scrollbar styling */
.country-list::-webkit-scrollbar {
    width: 6px;
}

.country-list::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

.country-list::-webkit-scrollbar-thumb {
    background: var(--bg-tertiary);
    border-radius: 3px;
}

.country-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem;
    border-radius: 0.375rem;
    cursor: pointer;
    transition: background-color 0.2s;
}

.country-item:hover {
    background-color: var(--bg-tertiary);
}

.country-item input[type="checkbox"] {
    accent-color: var(--accent-color);
    width: 1rem;
    height: 1rem;
    cursor: pointer;
}

.country-item label {
    font-size: 0.875rem;
    cursor: pointer;
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.chart-section {
    flex: 1;
    padding: 2rem;
    background-color: var(--bg-primary);
    position: relative;
    display: flex;
    flex-direction: column;
}

.chart-container {
    flex: 1;
    background-color: #ffffff;
    border-radius: 0.75rem;
    padding: 1.5rem;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    position: relative;
    width: 100%;
    height: 100%;
}

canvas {
    width: 100% !important;
    height: 100% !important;
}