/* Heater Haus Quote Calculator */

:root {
    --primary: #222222;      /* Classic black */
    --primary-dark: #000000;
    --dark: #1a1a1a;
    --gray: #666666;
    --light: #e0e0e0;
    --white: #ffffff;
    --bg: #f5f5f5;
    --accent: #333333;       /* Subtle accent */
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
    line-height: 1.6;
    color: var(--dark);
    background: var(--bg);
    min-height: 100vh;
}

.container {
    max-width: 480px;
    margin: 0 auto;
    padding: 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.hidden {
    display: none !important;
}

/* Header */
.header {
    text-align: center;
    padding: 30px 0 20px;
}

.header h1 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--dark);
    letter-spacing: -0.5px;
}

.tagline {
    color: var(--gray);
    font-size: 0.95rem;
    margin-top: 4px;
}

/* Calculator Main */
.calculator {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.calculator > h2 {
    text-align: center;
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--dark);
}

.intro {
    text-align: center;
    color: var(--gray);
    margin-bottom: 30px;
}

/* Quiz */
.quiz {
    flex: 1;
}

.question-card {
    background: white;
    border-radius: 16px;
    padding: 30px 24px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
}

.progress-text {
    font-size: 0.85rem;
    color: var(--gray);
    margin-bottom: 8px;
}

.progress-bar {
    height: 4px;
    background: #e9ecef;
    border-radius: 2px;
    margin-bottom: 24px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--primary);
    border-radius: 2px;
    transition: width 0.3s ease;
}

.question-text {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 24px;
    color: var(--dark);
}

.options {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.option-btn {
    width: 100%;
    padding: 16px 20px;
    background: white;
    border: 2px solid #e9ecef;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 500;
    color: var(--dark);
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: left;
}

.option-btn:hover {
    border-color: var(--primary);
    background: #fff5f5;
}

.option-btn:active {
    transform: scale(0.98);
}

/* Result */
.result {
    background: white;
    border-radius: 16px;
    padding: 40px 24px;
    text-align: center;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
    margin-bottom: 20px;
}

.quote-amount .label {
    display: block;
    font-size: 0.9rem;
    color: var(--gray);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.quote-amount .price {
    display: block;
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary);
}

.quote-breakdown {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid #e9ecef;
    text-align: left;
}

.breakdown-item {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    font-size: 0.95rem;
    color: var(--dark);
}

.breakdown-item span:last-child {
    font-weight: 600;
}

.quote-note {
    margin-top: 16px;
    font-size: 0.9rem;
    color: var(--gray);
}

/* Contact Form */
.contact-form {
    background: white;
    border-radius: 16px;
    padding: 30px 24px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
}

.contact-form h3 {
    font-size: 1.25rem;
    margin-bottom: 8px;
    color: var(--dark);
}

.contact-form > p {
    color: var(--gray);
    margin-bottom: 24px;
    font-size: 0.95rem;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 6px;
    color: var(--dark);
}

.form-group input[type="text"],
.form-group input[type="tel"],
.form-group input[type="email"] {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid #e9ecef;
    border-radius: 10px;
    font-size: 1rem;
    transition: border-color 0.2s ease;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary);
}

.radio-group {
    display: flex;
    gap: 20px;
    margin-top: 8px;
}

.radio-group label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: normal;
    cursor: pointer;
}

.radio-group input[type="radio"] {
    width: 18px;
    height: 18px;
    accent-color: var(--primary);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 16px 32px;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    width: 100%;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
}

.btn-primary:active {
    transform: scale(0.98);
}

/* Success */
.success {
    background: white;
    border-radius: 16px;
    padding: 50px 24px;
    text-align: center;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
}

.success-icon {
    width: 80px;
    height: 80px;
    background: #d4edda;
    color: #28a745;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    margin: 0 auto 24px;
}

.success h3 {
    font-size: 1.5rem;
    margin-bottom: 12px;
    color: var(--dark);
}

.success p {
    color: var(--gray);
    margin-bottom: 8px;
}

.quote-reminder {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid #e9ecef;
}

.quote-reminder strong {
    color: var(--primary);
    font-size: 1.25rem;
}

/* Footer */
.footer {
    text-align: center;
    padding: 30px 0 20px;
    color: var(--gray);
    font-size: 0.85rem;
}

.footer a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
}

.footer a:hover {
    text-decoration: underline;
}

/* Mobile Responsive */
@media (max-width: 480px) {
    .container {
        padding: 16px;
    }
    
    .header h1 {
        font-size: 1.5rem;
    }
    
    .question-card,
    .result,
    .contact-form,
    .success {
        padding: 24px 20px;
        border-radius: 12px;
    }
    
    .quote-amount .price {
        font-size: 2.5rem;
    }
    
    .option-btn {
        padding: 14px 16px;
    }
}