/* Reset e configurações básicas */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Variáveis CSS */
:root {
    --primary-blue: #1a237e;
    --secondary-blue: #283593;
    --dark-blue: #0d1b69;
    --light-blue: #3f51b5;
    --accent-blue: #5c6bc0;
    --background-light: #f8fafc;
    --background-dark: #1e293b;
    --text-dark: #1e293b;
    --text-gray: #64748b;
    --text-light: #ffffff;
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --transition: all 0.3s ease;
    --border-radius: 12px;
}

/* Base */
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background: var(--background-light);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Header */
.header {
    background: var(--primary-blue);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow);
}

.navbar {
    padding: 1rem 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo h2 {
    color: var(--text-light);
    font-size: 1.5rem;
    font-weight: 700;
}

.nav-actions .btn-outline {
    color: var(--text-light);
    border: 2px solid var(--text-light);
    padding: 0.5rem 1rem;
    text-decoration: none;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.nav-actions .btn-outline:hover {
    background: var(--text-light);
    color: var(--primary-blue);
}

/* Hero Section */
.hero-calc {
    background: linear-gradient(135deg, var(--dark-blue) 0%, var(--primary-blue) 100%);
    color: var(--text-light);
    padding: 4rem 0;
    text-align: center;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.2rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

/* Calculator Section */
.calculator-section {
    padding: 4rem 0;
}

.calculator-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.calculator-form {
    background: var(--text-light);
    border-radius: 20px;
    padding: 2.5rem;
    box-shadow: var(--shadow-lg);
}

.form-header {
    text-align: center;
    margin-bottom: 2rem;
}

.form-header h2 {
    font-size: 2rem;
    color: var(--primary-blue);
    margin-bottom: 0.5rem;
}

.form-header p {
    color: var(--text-gray);
    font-size: 1.1rem;
}

/* Form Sections */
.form-section {
    margin-bottom: 2.5rem;
}

.section-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.3rem;
    color: var(--primary-blue);
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.section-title i {
    color: var(--light-blue);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-label {
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

.required {
    color: var(--error);
}

.form-input {
    padding: 1rem;
    border: 2px solid #e2e8f0;
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
    background: #f8fafc;
}

.form-input:focus {
    outline: none;
    border-color: var(--light-blue);
    background: var(--text-light);
    box-shadow: 0 0 0 3px rgba(63, 81, 181, 0.1);
}

.form-input.error {
    border-color: var(--error);
    background: #fef2f2;
}

.form-input.warning {
    border-color: var(--warning);
    background: #fffbeb;
}

.form-help {
    color: var(--text-gray);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

/* Tipo Grid */
.tipo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
}

.tipo-card {
    position: relative;
}

.tipo-card input[type="radio"] {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.tipo-label {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    border: 2px solid #e2e8f0;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    background: #f8fafc;
}

.tipo-label:hover {
    border-color: var(--light-blue);
    background: var(--text-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.tipo-card input[type="radio"]:checked + .tipo-label {
    border-color: var(--primary-blue);
    background: var(--text-light);
    box-shadow: 0 0 0 3px rgba(26, 35, 126, 0.1);
}

.tipo-icon {
    width: 50px;
    height: 50px;
    background: var(--light-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    font-size: 1.2rem;
    flex-shrink: 0;
}

.tipo-info h4 {
    font-size: 1.1rem;
    color: var(--text-dark);
    margin-bottom: 0.25rem;
    font-weight: 600;
}

.tipo-info p {
    color: var(--text-gray);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.tipo-price {
    color: var(--primary-blue);
    font-weight: 700;
    font-size: 1rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    justify-content: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
    color: var(--text-light);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.btn-whatsapp {
    background: #25d366;
    color: var(--text-light);
}

.btn-whatsapp:hover {
    background: #128c7e;
    transform: translateY(-2px);
}

.btn-email {
    background: var(--accent-blue);
    color: var(--text-light);
}

.btn-email:hover {
    background: var(--secondary-blue);
    transform: translateY(-2px);
}

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

/* Calculator Result */
.calculator-result {
    background: var(--text-light);
    border-radius: 20px;
    padding: 2.5rem;
    box-shadow: var(--shadow-lg);
    border: 2px solid var(--primary-blue);
}

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid #e2e8f0;
}

.result-header h2 {
    color: var(--primary-blue);
    font-size: 1.8rem;
}

.btn-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-gray);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: var(--transition);
}

.btn-close:hover {
    background: #f1f5f9;
    color: var(--text-dark);
}

.result-content {
    margin-bottom: 2rem;
}

.result-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
    border-bottom: 1px solid #e2e8f0;
}

.result-item:last-child {
    border-bottom: none;
}

.result-label {
    font-weight: 500;
    color: var(--text-dark);
}

.result-value {
    font-weight: 600;
    color: var(--primary-blue);
}

.result-total {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
    color: var(--text-light);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    text-align: center;
    margin: 1.5rem 0;
}

.result-total .total-label {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    opacity: 0.9;
}

.result-total .total-value {
    font-size: 2.5rem;
    font-weight: 700;
}

.result-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.acrescimo-info {
    background: #fffbeb;
    border: 1px solid var(--warning);
    border-radius: var(--border-radius);
    padding: 1rem;
    margin: 1rem 0;
    color: #92400e;
}

.acrescimo-info i {
    color: var(--warning);
    margin-right: 0.5rem;
}

/* Avisos */
.aviso-container {
    position: fixed;
    top: 100px;
    right: 20px;
    z-index: 1000;
    max-width: 400px;
}

.aviso {
    background: var(--warning);
    color: var(--text-light);
    padding: 1rem;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    box-shadow: var(--shadow);
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* WhatsApp Float */
.whatsapp-float {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1000;
    animation: pulse 2s infinite;
}

.whatsapp-link {
    display: flex;
    align-items: center;
    background: #25d366;
    color: white;
    padding: 15px 20px;
    border-radius: 50px;
    text-decoration: none;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.3);
    transition: var(--transition);
    font-weight: 600;
    gap: 10px;
}

.whatsapp-link:hover {
    background: #128c7e;
    transform: translateY(-3px);
    box-shadow: 0 6px 25px rgba(37, 211, 102, 0.4);
    color: white;
}

.whatsapp-link i {
    font-size: 1.5rem;
}

.whatsapp-text {
    font-size: 0.9rem;
    white-space: nowrap;
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
    }
}

/* Responsive */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .calculator-form {
        padding: 1.5rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .tipo-grid {
        grid-template-columns: 1fr;
    }
    
    .tipo-label {
        padding: 1rem;
    }
    
    .result-actions {
        flex-direction: column;
    }
    
    .whatsapp-text {
        display: none;
    }
    
    .whatsapp-link {
        width: 60px;
        height: 60px;
        border-radius: 50%;
        justify-content: center;
        padding: 0;
    }
    
    .nav-container {
        flex-direction: column;
        gap: 1rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 0.5rem;
    }
    
    .calculator-form {
        padding: 1rem;
    }
    
    .hero-calc {
        padding: 2rem 0;
    }
    
    .calculator-section {
        padding: 2rem 0;
    }
    
    .result-total .total-value {
        font-size: 2rem;
    }
}


/* Trilhos e Instalação */
.trilho-options,
.instalacao-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}

.trilho-card,
.instalacao-card {
    position: relative;
}

.trilho-card input[type="radio"],
.instalacao-card input[type="radio"] {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.trilho-label,
.instalacao-label {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem;
    border: 2px solid #e2e8f0;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    background: #f8fafc;
    min-height: 100px;
}

.trilho-label:hover,
.instalacao-label:hover {
    border-color: var(--light-blue);
    background: var(--text-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.trilho-card input[type="radio"]:checked + .trilho-label,
.instalacao-card input[type="radio"]:checked + .instalacao-label {
    border-color: var(--primary-blue);
    background: var(--text-light);
    box-shadow: 0 0 0 3px rgba(26, 35, 126, 0.1);
}

.trilho-icon,
.instalacao-icon {
    width: 45px;
    height: 45px;
    background: var(--accent-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    font-size: 1.1rem;
    flex-shrink: 0;
}

.trilho-card input[type="radio"]:checked + .trilho-label .trilho-icon,
.instalacao-card input[type="radio"]:checked + .instalacao-label .instalacao-icon {
    background: var(--primary-blue);
}

.trilho-info h4,
.instalacao-info h4 {
    font-size: 1rem;
    color: var(--text-dark);
    margin-bottom: 0.25rem;
    font-weight: 600;
    line-height: 1.3;
}

.trilho-info p,
.instalacao-info p {
    color: var(--text-gray);
    font-size: 0.85rem;
    margin-bottom: 0.5rem;
    line-height: 1.4;
}

.trilho-price,
.instalacao-price {
    color: var(--primary-blue);
    font-weight: 700;
    font-size: 0.95rem;
}

/* Ajustes responsivos para trilhos e instalação */
@media (max-width: 768px) {
    .trilho-options,
    .instalacao-options {
        grid-template-columns: 1fr;
    }
    
    .trilho-label,
    .instalacao-label {
        padding: 1rem;
        min-height: 80px;
    }
    
    .trilho-icon,
    .instalacao-icon {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
    
    .trilho-info h4,
    .instalacao-info h4 {
        font-size: 0.95rem;
    }
    
    .trilho-info p,
    .instalacao-info p {
        font-size: 0.8rem;
    }
}

/* Ajustes para resultado com trilhos e instalação */
.result-breakdown {
    margin-bottom: 1.5rem;
}

.result-subtotal {
    background: #f8fafc;
    padding: 1rem;
    border-radius: var(--border-radius);
    margin: 1rem 0;
    border-left: 4px solid var(--accent-blue);
}

.result-subtotal .subtotal-label {
    font-weight: 500;
    color: var(--text-gray);
    font-size: 0.9rem;
}

.result-subtotal .subtotal-value {
    font-weight: 600;
    color: var(--primary-blue);
    font-size: 1.1rem;
}