/* Custom properties for easy theming */
:root {
    --primary-color: #333333;
    --secondary-color: #2c5531;
    --secondary-hover: #2980b9;
    --background-color: #f8f9fa;
    --card-bg: #ffffff;
    --text-main: #333333;
    --text-muted: #6c757d;
    --border-color: #dee2e6;
    --error-color: #e74c3c;
    --success-color: #2ecc71;
    --border-radius: 8px;
    --transition-speed: 0.3s;
    --font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

/* Base styles */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-family);
    background-color: var(--background-color);
    color: var(--text-main);
    line-height: 1.6;
    padding: 2rem 1rem;
}

.calculator-container {
    margin: 0 auto;
    background: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    overflow: hidden;
}

.calculator-header {
    background-color: var(--primary-color);
    color: white;
    padding: 2rem;
    text-align: center;
}

.calculator-header h1 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.calculator-app {
    padding: 2rem;
}

.step-section {
    margin-bottom: 2.5rem;
}

.step-title {
    font-size: 1.25rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.step-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background-color: var(--secondary-color);
    color: white;
    border-radius: 50%;
    font-size: 1rem;
}

.filter-container {
    display: flex;
    gap: 10px;
    margin-bottom: 25px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 20px;
    background-color: #f3f4f6;
    border: 1px solid #e5e7eb;
    border-radius: 20px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.filter-btn:hover {
    background-color: #e5e7eb;
}

.filter-btn.active {
    background-color: var(--secondary-color);
    color: white;
    border-color: var(--secondary-color);
}

/* Cabinet Grid */
.cabinet-grid {
    padding: 10px;
    max-height: 500px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    overflow-y: auto;
}

.cabinet-card {
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1rem;
    cursor: pointer;
    transition: all var(--transition-speed) ease;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.cabinet-card:hover {
    border-color: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(52, 152, 219, 0.1);
}

.cabinet-card[aria-checked="true"] {
    border-color: var(--secondary-color);
    background-color: rgba(52, 152, 219, 0.05);
    position: relative;
}

.cabinet-card[aria-checked="true"]::after {
    content: '✓';
    position: absolute;
    top: 10px;
    right: 10px;
    background: var(--secondary-color);
    color: white;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
}

.cabinet-img {
    width: 100%;
    height: auto;
    object-fit: cover;
    background-color: var(--background-color);
}

.cabinet-series {
    margin-top: 1rem;
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.25rem;
}

.cabinet-name {
    font-weight: 600;
    font-size: 1.1rem;
}

/* Form Styles */
.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--text-main);
}

.form-group input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-family: inherit;
    font-size: 1rem;
    transition: border-color var(--transition-speed);
}

.form-group input:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
}

.form-group input.invalid {
    border-color: var(--error-color);
}

.help-text {
    display: block;
    margin-top: 0.4rem;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.form-actions {
    margin-top: 2rem;
    text-align: center;
}

.error-message {
    color: var(--error-color);
    margin-bottom: 1rem;
    min-height: 1.5rem;
}

.submit-btn {
    background-color: var(--secondary-color);
    color: white;
    border: none;
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: background-color var(--transition-speed);
    width: 100%;
    max-width: 300px;
}

.submit-btn:hover {
    background-color: var(--secondary-hover);
}

/* Success Screen */
.success-screen {
    padding: 4rem 2rem;
    text-align: center;
    animation: fadeIn 0.5s ease;
}

.success-screen.hidden {
    display: none;
}

.success-icon {
    width: 64px;
    height: 64px;
    stroke: var(--success-color);
    margin-bottom: 1.5rem;
    margin-left: auto;
    margin-right: auto;
    display: block;
}

.estimate-text {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-color);
    margin: 1.5rem 0;
    padding: 1.5rem;
    background-color: rgba(46, 204, 113, 0.1);
    border-radius: var(--border-radius);
    border: 1px solid rgba(46, 204, 113, 0.2);
}

.follow-up-text {
    color: var(--text-muted);
    margin-bottom: 2rem;
}

.secondary-btn {
    background-color: transparent;
    color: var(--secondary-color);
    border: 2px solid var(--secondary-color);
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 500;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-speed);
}

.secondary-btn:hover {
    background-color: var(--secondary-color);
    color: white;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive adjustments */
@media (max-width: 1258px) {
    .filter-container {
        flex-wrap: nowrap;
        overflow-x: scroll;
    }
}

@media (max-width: 600px) {
    .calculator-app {
        padding: 1.5rem 1rem;
    }

    .cabinet-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 400px) {
    .cabinet-grid {
        grid-template-columns: 1fr;
    }
}