:root[data-theme="light"] {
    --primary-color: #2C3E50;
    --secondary-color: #E74C3C;
    --accent-color: #3498DB;
    --highlight-color: #2ECC71;
    --background-color: #F5F6FA;
    --card-background: #FFFFFF;
    --text-color: #2C3E50;
    --chart-color-1: #3498DB;
    --chart-color-2: #E74C3C;
    --chart-color-3: #2ECC71;
    --chart-color-4: #F1C40F;
    --chart-color-5: #9B59B6;
    --chart-color-6: #1ABC9C;
    --chart-color-7: #E67E22;
    --border-color: #BDC3C7;
    --shadow-color: rgba(44, 62, 80, 0.1);
}

:root[data-theme="dark"] {
    --primary-color: #00526B;
    --secondary-color: #FA8155;
    --accent-color: #0098B9;
    --highlight-color: #FFAD36;
    --background-color: #3C3C3C;
    --card-background: #4a4a4a;
    --text-color: #FFAD36;
    --chart-color-1: #00526B;
    --chart-color-2: #FA8155;
    --chart-color-3: #FFAD36;
    --chart-color-4: #B7C82B;
    --chart-color-5: #0098B9;
    --chart-color-6: #007C74;
    --chart-color-7: #F49D00;
    --border-color: #0098B9;
    --shadow-color: rgba(0, 82, 107, 0.3);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
}

body {
    background-color: var(--background-color);
    color: var(--text-color);
    padding: 2rem;
    transition: all 0.3s ease;
}

@media (max-width: 768px) {
    body {
        padding: 1rem;
    }
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

@media (max-width: 768px) {
    .container {
        padding: 0;
    }
}

.header {
    text-align: center;
    margin-bottom: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

@media (max-width: 768px) {
    .header {
        flex-direction: column;
        margin-bottom: 1.5rem;
    }

    .header-content {
        order: 1;
    }

    .theme-switch {
        order: 2;
        width: 100%;
        max-width: 200px;
    }
}

.header h1 {
    color: var(--accent-color);
    margin-bottom: 0.5rem;
    font-weight: 600;
    font-size: 2rem;
}

@media (max-width: 768px) {
    .header h1 {
        font-size: 1.5rem;
    }

    .header p {
        font-size: 0.9rem;
    }
}

.header p {
    color: var(--text-color);
}

.theme-switch {
    background: var(--primary-color);
    border: 2px solid var(--border-color);
    color: var(--text-color);
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.theme-switch:hover {
    background: var(--accent-color);
    color: var(--highlight-color);
    border-color: var(--highlight-color);
}

.income-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

@media (max-width: 768px) {
    .income-summary {
        gap: 1rem;
        margin-bottom: 1.5rem;
        max-width: 600px;
        margin-left: auto;
        margin-right: auto;
    }
}

.income-card {
    background: var(--card-background);
    padding: 1.5rem;
    border-radius: 0.5rem;
    box-shadow: 0 4px 6px var(--shadow-color);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

@media (max-width: 768px) {
    .income-card {
        padding: 1rem;
        width: 100%;
    }
}

.income-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 8px var(--shadow-color);
    border-color: var(--accent-color);
}

.income-card h3 {
    color: var(--secondary-color);
    margin-bottom: 1rem;
    font-weight: 500;
}

.income-value {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--chart-color-3);
}

.income-value-wrapper {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.progress-percentage {
    font-size: 1rem;
    color: var(--secondary-color);
    font-weight: 500;
}

.income-breakdown {
    margin-top: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-color);
    opacity: 0.9;
}

.income-source {
    display: flex;
    justify-content: space-between;
    margin-top: 0.25rem;
}

.income-source-label {
    color: var(--secondary-color);
}

.income-source-value {
    color: var(--chart-color-3);
}

.charts-container {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 2rem;
    width: 100%;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

@media (max-width: 768px) {
    .charts-container {
        margin-top: 1.5rem;
    }
}

.chart-wrapper {
    background: var(--card-background);
    padding: 1.5rem;
    border-radius: 0.5rem;
    box-shadow: 0 4px 6px var(--shadow-color);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
    width: 100%;
}

@media (max-width: 768px) {
    .chart-wrapper {
        padding: 1rem;
    }
}

.chart-wrapper:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 8px var(--shadow-color);
    border-color: var(--accent-color);
}

.progress-bar {
    width: 100%;
    height: 16px;
    background-color: var(--background-color);
    border-radius: 8px;
    overflow: hidden;
    margin-top: 1rem;
    border: 1px solid var(--border-color);
    box-shadow: inset 0 2px 4px var(--shadow-color);
}

@media (max-width: 768px) {
    .progress-bar {
        height: 12px;
        border-radius: 6px;
        margin-top: 0.75rem;
    }
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--chart-color-1), var(--chart-color-2));
    transition: width 0.3s ease;
}