:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --background-color: #f5f6fa;
}

body {
    font-family: 'Segoe UI', system-ui, sans-serif;
    line-height: 1.6;
    background-color: var(--background-color);
    color: var(--primary-color);
}

.container {
    max-width: 1000px;
    margin: 2rem auto;
    padding: 1rem;
}

.input-section {
    background: white;
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.input-group {
    margin: 1rem 0;
    display: grid;
    grid-template-columns: 200px 1fr;
    align-items: center;
    gap: 1rem;
}

.btn-add, .btn-calculate {
    background-color: var(--secondary-color);
    color: white;
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: opacity 0.2s;
}

.btn-add:hover, .btn-calculate:hover {
    opacity: 0.9;
}

.results-section {
    margin-top: 2rem;
    padding: 1rem;
    background: white;
    border-radius: 8px;
}

.service-entry {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin: 1rem 0;
    padding: 1rem;
    border: 1px solid #ddd;
    border-radius: 4px;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
}

th, td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

th {
    background-color: var(--background-color);
}

/* Add to styles.css */
.help-text {
    display: block;
    font-size: 0.8em;
    color: #666;
    margin-top: 0.5rem;
}

.info-icon {
    cursor: help;
    font-size: 0.8em;
    vertical-align: super;
}

.section-help {
    background: #f8f9fa;
    padding: 1rem;
    margin-top: 1rem;
    border-radius: 4px;
    font-size: 0.9em;
}

.reference-footer {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid #ddd;
}

.pre-calculation-note {
    background: #fff3cd;
    padding: 1rem;
    border-radius: 4px;
    margin: 1rem 0;
}