:root {
    --bg-primary: #f4f4f4;
    --bg-secondary: #ffffff;
    --text-primary: #333333;
    --accent-color: #6200ee;
    --accent-secondary: #03dac6;
    --card-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
}

.container {
    width: 95%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 20px;
}

.summary-grid {
    grid-column: span 12;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.form-grid {
    grid-column: span 12;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.chart-grid {
    grid-column: span 12;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.bento-card {
    background-color: var(--bg-secondary);
    border-radius: 12px;
    padding: 20px;
    box-shadow: var(--card-shadow);
    transition: transform 0.3s ease;
    border: 1px solid rgba(0,0,0,0.05);
}

.bento-card:hover {
    transform: translateY(-5px);
}

.summary-card {
    text-align: center;
    background-color: var(--bg-secondary);
    border-radius: 8px;
    padding: 15px;
    box-shadow: var(--card-shadow);
}

input, select, button {
    width: 100%;
    padding: 12px;
    margin-bottom: 15px;
    background-color: #f9f9f9;
    color: var(--text-primary);
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    transition: all 0.3s ease;
}

button {
    background-color: var(--accent-color);
    color: white;
    border: none;
    cursor: pointer;
}

button:hover {
    background-color: #7c12ff;
}

.transaction-list {
    list-style-type: none;
    max-height: 300px;
    overflow-y: auto;
    padding: 0;
}

.transaction-item {
    display: flex;
    justify-content: space-between;
    padding: 12px;
    border-bottom: 1px solid #f0f0f0;
}

.transaction-income { color: var(--accent-secondary); }
.transaction-expense { color: #d32f2f; }

@media screen and (max-width: 1024px) {
    .summary-grid,
    .form-grid,
    .chart-grid {
        grid-template-columns: 1fr;
    }

    .container {
        width: 98%;
        padding: 10px;
    }
}

@media screen and (max-width: 600px) {
    body {
        font-size: 14px;
    }

    .bento-card {
        padding: 15px;
    }

    input, select, button {
        padding: 10px;
    }
}

canvas {
    width: 100%;
    height: auto;
}