:root {
    --color-primary-blue: #86754f;
    --color-accent: #c3002f;
    --color-secondary: #00a997;
    --color-text-dark: #373d42;
    --color-text-light: #ffffff;
    --color-surface: #f8f9fa;
    --color-border: #dee2e6;
}

/* Base styles */
body {
    background-color: #fcfcfc;
    color: var(--color-text-dark);
    font-family: 'Effra', sans-serif;
}

/* Main Button Style (Accent Color) */
.btn-accent {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 9999px;
    font-weight: 600;
    text-align: center;
    text-decoration: none;
    transition: background-color 0.3s ease;
    cursor: pointer;
    border: none;
    background-color: var(--color-accent);
    color: var(--color-text-light);
}
.btn-accent:hover {
    background-color: #a30027;
}

/* Back Button Style */
.btn-back {
    background-color: transparent;
    color: var(--color-primary);
    font-weight: 600;
    padding: 0.5rem 1rem;
    border: 1px solid transparent;
    transition: all 0.3s ease;
    z-index: 10;
}
.btn-back:hover {
    background-color: rgba(134, 117, 79, 0.1);
    border-color: var(--color-primary);
}

/* Filter Buttons */
.filter-buttons button {
    background-color: white;
    color: var(--color-text-dark);
    border: 1px solid var(--color-border);
}
.filter-buttons button.active {
    background-color: var(--color-primary);
    color: var(--color-text-light);
    border-color: var(--color-primary);
}

/* Title Bar */
.title-with-bar {
    background-color: var(--color-primary);
    color: var(--color-text-light);
    padding: 0.75rem 1rem;
    border-radius: 0.375rem;
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
    border: none;
}
.title-with-bar::before {
    content: none;
}

/* Calculator Sections */
.calculator-section {
    background-color: #ffffff;
    border-radius: 0.75rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    padding: 1.5rem;
    display: none;
    margin-top: 2rem;
}


.calculator-form input[type="number"] {
    border: 1px solid var(--color-border);
    color: var(--color-text-dark);
    padding: 0.5rem;
    border-radius: 0.375rem;
}


.result-item {
    background-color: #f8f9fa;
    color: var(--color-text-dark);
    border-radius: 0.375rem;
    padding: 1rem;
    margin-bottom: 1rem;
    border: 1px solid var(--color-border);
}
.result-item strong {
    color: var(--color-text-dark);
}


.estimated-heading {
    background-color: var(--color-accent);
    color: var(--color-text-light);
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    font-weight: 600;
    margin-bottom: 1rem;
    text-align: center;
}