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

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    color: white;
    padding: 1rem 0;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

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

.logo h1 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 0.2rem;
}

.logo span {
    font-size: 0.9rem;
    opacity: 0.9;
}

.nav {
    display: flex;
    gap: 2rem;
}

.nav a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: opacity 0.3s ease;
}

.nav a:hover {
    opacity: 0.8;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    padding: 120px 0 80px;
    margin-top: 80px;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-content h2 {
    font-size: 3rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero-content p {
    font-size: 1.2rem;
    color: #64748b;
    margin-bottom: 2rem;
}

.cta-button {
    display: inline-block;
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: white;
    padding: 1rem 2rem;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(245, 158, 11, 0.3);
}

.hero-image img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

/* Simulator Section */
.simulator-section {
    padding: 80px 0;
    background: white;
}

.simulator-section h2 {
    text-align: center;
    font-size: 2.5rem;
    color: #1e293b;
    margin-bottom: 1rem;
}

.simulator-section > p {
    text-align: center;
    font-size: 1.1rem;
    color: #64748b;
    margin-bottom: 3rem;
}

.simulator-form {
    max-width: 800px;
    margin: 0 auto;
    background: #f8fafc;
    padding: 3rem;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.form-group {
    margin-bottom: 2rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    color: #374151;
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 1rem;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: #2563eb;
}

/* Slider personalizado */
.slider-container {
    position: relative;
}

#energyConsumption {
    width: 100%;
    height: 8px;
    border-radius: 4px;
    background: #e5e7eb;
    outline: none;
    -webkit-appearance: none;
}

#energyConsumption::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: #2563eb;
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(37, 99, 235, 0.3);
}

#energyConsumption::-moz-range-thumb {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: #2563eb;
    cursor: pointer;
    border: none;
    box-shadow: 0 2px 6px rgba(37, 99, 235, 0.3);
}

.slider-value {
    text-align: center;
    margin-top: 1rem;
    font-size: 1.5rem;
    font-weight: 600;
    color: #2563eb;
}

.calculate-btn {
    width: 100%;
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
    padding: 1.2rem;
    border: none;
    border-radius: 8px;
    font-size: 1.2rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.calculate-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(16, 185, 129, 0.3);
}

/* Results Section */
.results-section {
    max-width: 800px;
    margin: 3rem auto 0;
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    color: white;
    padding: 3rem;
    border-radius: 16px;
    text-align: center;
    animation: slideUp 0.6s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.results-content h3 {
    font-size: 2rem;
    margin-bottom: 2rem;
}

.solar-panels-visual {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 2rem;
}

.panel-icon {
    width: 40px;
    height: 25px;
    background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
    border-radius: 4px;
    position: relative;
    animation: fadeIn 0.3s ease-in-out;
}

.panel-icon::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    right: 2px;
    bottom: 2px;
    background: linear-gradient(135deg, #1e40af 0%, #1e3a8a 100%);
    border-radius: 2px;
}

@keyframes fadeIn {
    from { opacity: 0; transform: scale(0.8); }
    to { opacity: 1; transform: scale(1); }
}

.system-specs {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 2rem;
}

.spec-item {
    text-align: center;
}

.spec-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: #fbbf24;
    margin-bottom: 0.5rem;
}

.spec-label {
    font-size: 1rem;
    opacity: 0.9;
}

.system-message {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    padding: 1rem;
    background: rgba(251, 191, 36, 0.1);
    border-radius: 8px;
    border-left: 4px solid #fbbf24;
}

.cta-section {
    margin-top: 2rem;
}

.cta-button-large {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: white;
    padding: 1.5rem 3rem;
    border: none;
    border-radius: 8px;
    font-size: 1.3rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    margin-bottom: 1.5rem;
}

.cta-button-large:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 35px rgba(245, 158, 11, 0.4);
}

.trust-text {
    font-size: 1rem;
    opacity: 0.9;
    line-height: 1.6;
}

/* Social Proof Section */
.social-proof {
    padding: 80px 0;
    background: #f8fafc;
}

.social-proof h2 {
    text-align: center;
    font-size: 2.5rem;
    color: #1e293b;
    margin-bottom: 1rem;
}

.social-proof > p {
    text-align: center;
    font-size: 1.1rem;
    color: #64748b;
    margin-bottom: 3rem;
}

.photo-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 4rem;
}

.photo-item {
    position: relative;
    overflow: hidden;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.photo-item:hover {
    transform: translateY(-5px);
}

.photo-item img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.photo-item:hover img {
    transform: scale(1.05);
}

/* Testimonials */
.testimonials {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.testimonials h3 {
    font-size: 2rem;
    color: #1e293b;
    margin-bottom: 2rem;
}

.testimonials-carousel {
    position: relative;
    overflow: hidden;
    margin-bottom: 2rem;
}

.testimonial-item {
    display: none;
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
    margin: 0 1rem;
}

.testimonial-item.active {
    display: block;
    animation: fadeIn 0.5s ease-in-out;
}

.stars {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.testimonial-item p {
    font-size: 1.1rem;
    color: #374151;
    margin-bottom: 1rem;
    font-style: italic;
}

.client-name {
    font-weight: 600;
    color: #2563eb;
}

.carousel-controls {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.prev-btn, .next-btn {
    background: #2563eb;
    color: white;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2rem;
    transition: background-color 0.3s ease;
}

.prev-btn:hover, .next-btn:hover {
    background: #1d4ed8;
}

/* Footer */
.footer {
    background: #1e293b;
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
    color: #fbbf24;
}

.footer-section p {
    margin-bottom: 0.5rem;
    opacity: 0.9;
}

.social-links {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.social-links a {
    color: white;
    text-decoration: none;
    transition: color 0.3s ease;
}

.social-links a:hover {
    color: #fbbf24;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #374151;
    opacity: 0.8;
}

/* WhatsApp Float Button */
.whatsapp-float {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: #25d366;
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    text-decoration: none;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
    z-index: 1000;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    animation: pulse 2s infinite;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.6);
}

@keyframes pulse {
    0% { box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4); }
    50% { box-shadow: 0 4px 15px rgba(37, 211, 102, 0.8); }
    100% { box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4); }
}

/* Responsive Design */
@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav {
        gap: 1rem;
    }
    
    .hero .container {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .hero-content h2 {
        font-size: 2rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .simulator-form {
        padding: 2rem 1.5rem;
    }
    
    .system-specs {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .photo-gallery {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .social-links {
        align-items: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero-content h2 {
        font-size: 1.8rem;
    }
    
    .simulator-form {
        padding: 1.5rem 1rem;
    }
    
    .results-section {
        padding: 2rem 1.5rem;
    }
    
    .spec-number {
        font-size: 2rem;
    }
    
    .whatsapp-float {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
        bottom: 15px;
        right: 15px;
    }
}