/* ============================================
   HomeIoT - Global Styles
   ============================================ */

:root {
    --color-ai: #0066CC;
    --color-automacao: #00695C;
    --color-eletrica: #CC6600;
    --color-primary: var(--color-ai);
    --color-secondary: #f5f7fa;
    --color-text: #1a1a1a;
    --color-text-light: #666;
    --color-border: #e0e0e0;
    --color-bg: #ffffff;
    
    --spacing-xs: 8px;
    --spacing-sm: 12px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    
    --radius-sm: 6px;
    --radius-md: 12px;
    
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
    
    --transition: all 0.3s ease;
}

/* ============================================
   Base Styles
   ============================================ */

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

html {
    scroll-behavior: smooth;
}

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

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ============================================
   Typography
   ============================================ */

h1 {
    font-size: clamp(28px, 6vw, 48px);
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h2 {
    font-size: clamp(24px, 5vw, 40px);
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

p {
    font-size: 16px;
    color: var(--color-text-light);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    opacity: 0.8;
}

/* ============================================
   Buttons
   ============================================ */

.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    font-weight: 500;
    font-size: 15px;
    transition: var(--transition);
    border: 1px solid transparent;
    cursor: pointer;
    text-align: center;
    white-space: nowrap;
}

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

.btn-primary:hover {
    background: #0052a3;
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: transparent;
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
}

.btn-secondary:hover {
    background: rgba(0, 102, 204, 0.05);
}

/* Service-specific buttons */

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

.btn-ai:hover {
    background: #0052a3;
}

.btn-outline-ai {
    border: 1px solid var(--color-ai);
    color: var(--color-ai);
    background: transparent;
}

.btn-outline-ai:hover {
    background: rgba(0, 102, 204, 0.05);
}

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

.btn-automacao:hover {
    background: #004d42;
}

.btn-outline-automacao {
    border: 1px solid var(--color-automacao);
    color: var(--color-automacao);
    background: transparent;
}

.btn-outline-automacao:hover {
    background: rgba(0, 105, 92, 0.05);
}

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

.btn-eletrica:hover {
    background: #994d00;
}

.btn-outline-eletrica {
    border: 1px solid var(--color-eletrica);
    color: var(--color-eletrica);
    background: transparent;
}

.btn-outline-eletrica:hover {
    background: rgba(204, 102, 0, 0.05);
}

/* ============================================
   Navigation
   ============================================ */

.navbar {
    background: white;
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: var(--spacing-md) 0;
}

.navbar-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 600;
    font-size: 18px;
}

.navbar-menu {
    display: flex;
    gap: var(--spacing-lg);
    align-items: center;
}

.navbar-menu a {
    color: var(--color-text-light);
    font-size: 14px;
    transition: var(--transition);
}

.navbar-menu a:hover {
    color: var(--color-primary);
}

@media (max-width: 768px) {
    .navbar-menu {
        flex-direction: column;
        gap: var(--spacing-sm);
        align-items: flex-end;
    }
    
    .navbar-menu a:not(.btn) {
        display: none;
    }
}

/* ============================================
   Hero Section
   ============================================ */

.hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(135deg, #f5f7fa 0%, #ffffff 100%);
}

.hero-content {
    padding: 0 var(--spacing-md);
}

.hero h1 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.hero p {
    font-size: 18px;
    margin-bottom: var(--spacing-lg);
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
    flex-wrap: wrap;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat strong {
    font-size: 24px;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.stat span {
    font-size: 13px;
    color: var(--color-text-light);
}

.hero-image {
    padding: 0 var(--spacing-md);
}

.hero-image img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
}

@media (max-width: 768px) {
    .hero {
        grid-template-columns: 1fr;
        padding: var(--spacing-xl) 0;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .hero .btn {
        width: 100%;
    }
    
    .hero-stats {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
}

/* ============================================
   Services Overview
   ============================================ */

.services-overview {
    padding: var(--spacing-2xl) 0;
    background: white;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.service-card {
    display: block;
    padding: var(--spacing-lg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: transparent;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    transition: var(--transition);
}

.ai-card::before {
    background: var(--color-ai);
}

.automacao-card::before {
    background: var(--color-automacao);
}

.eletrica-card::before {
    background: var(--color-eletrica);
}

.card-icon {
    font-size: 40px;
    margin-bottom: var(--spacing-md);
}

.service-card h3 {
    margin-bottom: var(--spacing-xs);
}

.service-card p {
    margin-bottom: var(--spacing-md);
}

.card-arrow {
    display: inline-block;
    font-weight: 600;
    color: var(--color-primary);
}

/* ============================================
   Service Sections
   ============================================ */

.service-section {
    padding: var(--spacing-2xl) 0;
}

.section-header {
    margin-bottom: var(--spacing-2xl);
    max-width: 800px;
}

.section-header h2 {
    margin-bottom: var(--spacing-md);
}

.section-header p {
    font-size: 18px;
}

/* AI Section */
.ai-section {
    background: #f9fbff;
    border-top: 1px solid #dde9f8;
}

.ai-section h2 {
    color: var(--color-ai);
}

/* Automação Section */
.automacao-section {
    background: #f0faf7;
    border-top: 1px solid #d0e8e1;
}

.automacao-section h2 {
    color: var(--color-automacao);
}

/* Elétrica Section */
.eletrica-section {
    background: #fffaf0;
    border-top: 1px solid #ffe0cc;
}

.eletrica-section h2 {
    color: var(--color-eletrica);
}

/* ============================================
   Features Grid
   ============================================ */

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.feature {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--color-primary);
    transition: var(--transition);
}

.ai-section .feature {
    border-left-color: var(--color-ai);
}

.automacao-section .feature {
    border-left-color: var(--color-automacao);
}

.eletrica-section .feature {
    border-left-color: var(--color-eletrica);
}

.feature:hover {
    box-shadow: var(--shadow-sm);
}

.feature-icon {
    font-size: 32px;
    margin-bottom: var(--spacing-md);
    display: block;
}

.feature h4 {
    color: var(--color-text);
}

/* ============================================
   Case Study
   ============================================ */

.case-study {
    background: white;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.case-study h3 {
    color: var(--color-ai);
    margin-bottom: var(--spacing-md);
}

.case-intro {
    font-size: 15px;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
}

.case-metrics {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: #f9fbff;
    border-radius: var(--radius-sm);
}

.metric {
    text-align: center;
}

.metric-value {
    font-size: 28px;
    font-weight: 600;
    color: var(--color-ai);
    margin-bottom: var(--spacing-xs);
}

.metric-label {
    font-size: 13px;
    color: var(--color-text-light);
}

.case-content {
    margin-bottom: var(--spacing-lg);
}

.case-content p {
    margin-bottom: var(--spacing-md);
}

/* ============================================
   Serviços de Eletricidade
   ============================================ */

.eletrica-services {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.service-item {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
}

.service-number {
    display: inline-block;
    width: 40px;
    height: 40px;
    background: var(--color-eletrica);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

/* ============================================
   Automação Benefits
   ============================================ */

.automacao-benefits {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
}

.automacao-benefits h3 {
    margin-bottom: var(--spacing-lg);
    color: var(--color-automacao);
}

.benefits-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--spacing-lg);
}

.benefit {
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

.benefit:last-child {
    border-bottom: none;
}

.benefit strong {
    color: var(--color-automacao);
    display: block;
    margin-bottom: var(--spacing-xs);
}

/* ============================================
   Trust Section
   ============================================ */

.trust-section {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
}

.trust-section h3 {
    margin-bottom: var(--spacing-lg);
    color: var(--color-eletrica);
}

.trust-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--spacing-lg);
    text-align: center;
}

.trust-item {
    padding: var(--spacing-lg);
    background: #fffaf0;
    border-radius: var(--radius-sm);
}

.trust-item strong {
    font-size: 24px;
    color: var(--color-eletrica);
    display: block;
    margin-bottom: var(--spacing-xs);
}

.trust-item span {
    font-size: 13px;
    color: var(--color-text-light);
}

/* ============================================
   Section CTAs
   ============================================ */

.section-ctas {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
    flex-wrap: wrap;
}

.ai-ctas .btn,
.automacao-ctas .btn,
.eletrica-ctas .btn {
    flex: 1;
    min-width: 200px;
}

@media (max-width: 768px) {
    .section-ctas {
        flex-direction: column;
    }
    
    .section-ctas .btn {
        width: 100%;
    }
}

/* ============================================
   Contact Section
   ============================================ */

.contact-section {
    background: white;
    padding: var(--spacing-2xl) 0;
    border-top: 1px solid var(--color-border);
}

.contact-section h2 {
    text-align: center;
    margin-bottom: var(--spacing-md);
    color: var(--color-primary);
}

.contact-section > .container > p {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.contact-card {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    text-align: center;
}

.contact-card h4 {
    margin-bottom: var(--spacing-sm);
}

.contact-card p {
    margin-bottom: var(--spacing-lg);
    font-size: 14px;
}

.contact-card .btn {
    width: 100%;
}

.contact-info {
    max-width: 600px;
    margin: 0 auto;
}

.contact-info > p {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

/* ============================================
   Contact Form
   ============================================ */

.contact-form {
    display: grid;
    gap: var(--spacing-md);
}

.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    padding: var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 15px;
    transition: var(--transition);
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.contact-form textarea {
    resize: vertical;
}

/* ============================================
   Footer
   ============================================ */

.footer {
    background: #1a1a1a;
    color: #ccc;
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

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

.footer-section h4 {
    color: white;
    margin-bottom: var(--spacing-md);
}

.footer-section p {
    font-size: 14px;
    margin-bottom: var(--spacing-sm);
    color: #aaa;
}

.footer-section a {
    color: #aaa;
}

.footer-section a:hover {
    color: white;
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
}

.social-links a {
    display: inline-block;
    font-size: 14px;
}

.footer-bottom {
    border-top: 1px solid #333;
    padding-top: var(--spacing-lg);
    text-align: center;
    font-size: 13px;
    color: #888;
}

.footer-bottom p {
    margin-bottom: var(--spacing-xs);
}

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 1024px) {
    .container {
        max-width: 900px;
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-lg: 20px;
        --spacing-xl: 24px;
        --spacing-2xl: 32px;
    }
    
    h1 {
        font-size: 28px;
    }
    
    h2 {
        font-size: 24px;
    }
    
    .navbar-container {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
    }
    
    .navbar-menu {
        width: 100%;
        justify-content: space-between;
    }
    
    .navbar-menu .btn {
        padding: 8px 16px;
        font-size: 14px;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .eletrica-services {
        grid-template-columns: 1fr;
    }
    
    .trust-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-md: 14px;
        --spacing-lg: 16px;
    }
    
    h1 {
        font-size: 24px;
    }
    
    h2 {
        font-size: 20px;
    }
    
    .btn {
        padding: 10px 16px;
        font-size: 14px;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .hero .btn {
        width: 100%;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .case-metrics {
        grid-template-columns: 1fr;
    }
}