:root {
    --primary-color: #181868;
    --secondary-color: #2c3e50;
    --background-color: #f9f9f9;
    --text-color: #333;
    --border-color: #ddd;
    --hover-color: #f1f1f1;
    --error-color: #e74c3c;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

header {
    text-align: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

header h1 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 5px;
}

header p {
    font-size: 1.1rem;
    color: var(--secondary-color);
}

main {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
}

section {
    background-color: white;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

h2 {
    margin-bottom: 20px;
    color: var(--secondary-color);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
}

a {
    color: #848484;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 15px;
}

label {
    display: block;
    margin-bottom: 5px;
    font-weight: 600;
}

input, select {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
}

input:focus, select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 10px 15px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
    transition: background-color 0.3s;
}

.btn:hover {
    background-color: #2980b9;
}

.entries-container, .hourly-container {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

th {
    background-color: var(--hover-color);
    font-weight: 600;
}

tr:hover {
    background-color: var(--hover-color);
}

.delete-btn {
    background-color: var(--error-color);
    color: white;
    border: none;
    padding: 5px 10px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9rem;
}

.delete-btn:hover {
    background-color: #c0392b;
}

.category-totals {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 15px;
}

.category-card {
    background-color: var(--hover-color);
    padding: 15px;
    border-radius: 8px;
    text-align: center;
}

.category-card h3 {
    margin-bottom: 10px;
    color: var(--secondary-color);
}

.category-card .hours {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
}

.category-card .percentage {
    font-size: 0.9rem;
    color: var(--secondary-color);
    margin-top: 5px;
}

.hourly-table {
    width: 100%;
    border-collapse: collapse;
}

.hourly-table th, .hourly-table td {
    padding: 8px 12px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.bar-container {
    width: 100%;
    height: 20px;
    background-color: #eee;
    border-radius: 4px;
    overflow: hidden;
}

.bar {
    height: 100%;
    background-color: var(--primary-color);
    border-radius: 4px;
}

.overall-summary-section {
    background-color: white;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.summary-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

.summary-card {
    background-color: var(--hover-color);
    padding: 20px;
    border-radius: 8px;
    text-align: center;
}

.summary-card h3 {
    margin-bottom: 10px;
    color: var(--secondary-color);
    font-size: 1rem;
}

.summary-value {
    font-size: 2rem;
    font-weight: bold;
    color: var(--primary-color);
}

/* NEW: Export section styling */
.export-section {
    text-align: center;
    margin-top: 10px;
}

@media (min-width: 768px) {
    main {
        grid-template-columns: 1fr 2fr;
    }

    .input-section {
        grid-row: 1 / 2;
    }

    .entries-section {
        grid-row: 1 / 2;
    }

    .overall-summary-section,
    .summary-section,
    .hourly-section {
        grid-column: 1 / 3;
    }
}