/* EletroCenter - CSS Principal */
/* Design moderno, responsivo e otimizado para conversões */

/* ===== RESET E VARIÁVEIS ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Cores da marca baseadas na logo */
    --primary-color: #dc2626; /* Vermelho */
    --secondary-color: #fbbf24; /* Amarelo */
    --accent-color: #991b1b; /* Vermelho escuro */
    --light-yellow: #fef3c7; /* Amarelo claro */
    
    /* Cores neutras */
    --white: #ffffff;
    --black: #000000;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* Tipografia */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;
    
    /* Espaçamentos */
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-5: 1.25rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-10: 2.5rem;
    --spacing-12: 3rem;
    --spacing-16: 4rem;
    --spacing-20: 5rem;
    --spacing-24: 6rem;
    
    /* Sombras */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 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);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Transições */
    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
    
    /* Border radius */
    --radius-sm: 0.25rem;
    --radius: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
}

/* ===== BASE ===== */
html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--gray-800);
    background-color: var(--white);
    overflow-x: hidden;
}

/* ===== UTILITÁRIOS ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-4);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-16);
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: var(--spacing-4);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -var(--spacing-2);
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--radius-full);
}

.section-subtitle {
    font-size: var(--font-size-xl);
    color: var(--gray-600);
    max-width: 600px;
    margin: 0 auto;
}

.highlight {
    color: var(--primary-color);
    position: relative;
}

.highlight::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--secondary-color);
    opacity: 0.3;
    z-index: -1;
}

/* ===== BOTÕES ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-3) var(--spacing-6);
    font-size: var(--font-size-base);
    font-weight: 600;
    text-decoration: none;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-normal);
    text-align: center;
    min-width: 140px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, var(--accent-color), var(--primary-color));
}

.btn-secondary {
    background: var(--white);
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ===== HEADER ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gray-200);
    z-index: 1000;
    transition: all var(--transition-normal);
}

.navbar {
    padding: var(--spacing-4) 0;
}

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

.nav-brand .logo {
    height: 50px;
    width: auto;
    transition: transform var(--transition-normal);
}

.nav-brand .logo:hover {
    transform: scale(1.05);
}

.nav-menu {
    display: flex;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: var(--spacing-8);
}

.nav-link {
    font-weight: 500;
    color: var(--gray-700);
    text-decoration: none;
    padding: var(--spacing-2) var(--spacing-3);
    border-radius: var(--radius);
    transition: all var(--transition-normal);
    position: relative;
}

.nav-link:hover {
    color: var(--primary-color);
    background-color: var(--gray-50);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width var(--transition-normal);
}

.nav-link:hover::after {
    width: 80%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: var(--spacing-1);
}

.nav-toggle .bar {
    width: 25px;
    height: 3px;
    background: var(--gray-700);
    border-radius: var(--radius-full);
    transition: all var(--transition-normal);
}

/* ===== HERO SECTION ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--light-yellow) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="%23dc262610" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 2;
    width: 100%;
    padding: var(--spacing-20) 0;
}

.hero-content .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-16);
    align-items: center;
}

.hero-title {
    font-size: var(--font-size-6xl);
    font-weight: 800;
    line-height: 1.1;
    color: var(--gray-900);
    margin-bottom: var(--spacing-6);
}

.hero-description {
    font-size: var(--font-size-xl);
    color: var(--gray-600);
    margin-bottom: var(--spacing-8);
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-4);
    flex-wrap: wrap;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-visual {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-xl);
    animation: float 6s ease-in-out infinite;
    position: relative;
}

.hero-visual::before {
    content: '';
    position: absolute;
    top: -20px;
    left: -20px;
    right: -20px;
    bottom: -20px;
    border: 2px solid var(--secondary-color);
    border-radius: 50%;
    opacity: 0.3;
    animation: pulse 4s ease-in-out infinite;
}

.hero-icon {
    font-size: 120px;
    color: var(--white);
    animation: glow 3s ease-in-out infinite alternate;
}

.hero-scroll {
    position: absolute;
    bottom: var(--spacing-8);
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.scroll-down {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: 2px solid var(--primary-color);
    border-radius: 50%;
    color: var(--primary-color);
    text-decoration: none;
    transition: all var(--transition-normal);
    animation: bounce 2s infinite;
}

.scroll-down:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: translateX(-50%) scale(1.1);
}

/* ===== ABOUT SECTION ===== */
.about {
    padding: var(--spacing-24) 0;
    background: var(--white);
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-16);
    align-items: start;
}

.about-text h3 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-4);
}

.about-text p {
    font-size: var(--font-size-lg);
    color: var(--gray-600);
    margin-bottom: var(--spacing-6);
    line-height: 1.7;
}

.about-story {
    margin-bottom: var(--spacing-8);
}

.values-list {
    list-style: none;
}

.values-list li {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-3);
    font-size: var(--font-size-lg);
    color: var(--gray-700);
}

.values-list i {
    color: var(--primary-color);
    font-size: var(--font-size-lg);
}

.about-stats {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-6);
}

.stat-item {
    text-align: center;
    padding: var(--spacing-6);
    background: linear-gradient(135deg, var(--gray-50), var(--light-yellow));
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal);
}

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

.stat-number {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: var(--spacing-2);
}

.stat-label {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--gray-600);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ===== PRODUCTS SECTION ===== */
.products {
    padding: var(--spacing-24) 0;
    background: var(--gray-50);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-8);
}

.product-card {
    background: var(--white);
    padding: var(--spacing-8);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.product-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--radius-2xl);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-6);
}

.product-icon i {
    font-size: var(--font-size-3xl);
    color: var(--white);
}

.product-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-4);
}

.product-description {
    font-size: var(--font-size-base);
    color: var(--gray-600);
    margin-bottom: var(--spacing-6);
    line-height: 1.6;
}

.product-features {
    list-style: none;
}

.product-features li {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    margin-bottom: var(--spacing-2);
    font-size: var(--font-size-sm);
    color: var(--gray-700);
}

.product-features li::before {
    content: '✓';
    color: var(--primary-color);
    font-weight: bold;
    font-size: var(--font-size-base);
}

/* ===== CONTACT SECTION ===== */
.contact {
    padding: var(--spacing-24) 0;
    background: var(--white);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-16);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-6);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
    padding: var(--spacing-6);
    background: var(--gray-50);
    border-radius: var(--radius-xl);
    transition: all var(--transition-normal);
}

.contact-item:hover {
    background: var(--light-yellow);
    transform: translateX(10px);
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon i {
    font-size: var(--font-size-xl);
    color: var(--white);
}

.contact-details h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-1);
}

.contact-details p {
    font-size: var(--font-size-base);
    color: var(--gray-600);
}

.contact-form {
    background: var(--gray-50);
    padding: var(--spacing-8);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-md);
}

.form-group {
    margin-bottom: var(--spacing-6);
}

.form-group label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: var(--spacing-2);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-3);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    font-family: var(--font-family);
    transition: all var(--transition-normal);
    background: var(--white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* ===== FOOTER ===== */
.footer {
    background: var(--gray-900);
    color: var(--white);
    padding: var(--spacing-20) 0 var(--spacing-8) 0;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-8);
    margin-bottom: var(--spacing-12);
}

.footer-section h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-4);
    color: var(--white);
}

.footer-logo img {
    height: 60px;
    width: auto;
    margin-bottom: var(--spacing-4);
}

.footer-description {
    color: var(--gray-300);
    margin-bottom: var(--spacing-6);
    line-height: 1.6;
}

.social-links {
    display: flex;
    gap: var(--spacing-3);
}

.social-link {
    width: 40px;
    height: 40px;
    background: var(--gray-800);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    text-decoration: none;
    transition: all var(--transition-normal);
}

.social-link:hover {
    background: var(--primary-color);
    transform: translateY(-2px);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-2);
}

.footer-links a {
    color: var(--gray-300);
    text-decoration: none;
    transition: color var(--transition-normal);
}

.footer-links a:hover {
    color: var(--secondary-color);
}

.footer-contact p {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    margin-bottom: var(--spacing-2);
    color: var(--gray-300);
}

.footer-contact i {
    color: var(--secondary-color);
    width: 20px;
}

.footer-bottom {
    border-top: 1px solid var(--gray-800);
    padding-top: var(--spacing-8);
    text-align: center;
    color: var(--gray-400);
}

/* ===== WHATSAPP FLOAT BUTTON ===== */
.whatsapp-float {
    position: fixed;
    bottom: var(--spacing-6);
    right: var(--spacing-6);
    width: 60px;
    height: 60px;
    background: #25d366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    text-decoration: none;
    font-size: var(--font-size-2xl);
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    transition: all var(--transition-normal);
    animation: pulse-whatsapp 2s infinite;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-xl);
}

/* ===== ANIMAÇÕES ===== */
@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.3; }
    50% { transform: scale(1.05); opacity: 0.5; }
}

@keyframes glow {
    0% { text-shadow: 0 0 20px rgba(255, 255, 255, 0.5); }
    100% { text-shadow: 0 0 30px rgba(255, 255, 255, 0.8); }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-10px); }
    60% { transform: translateY(-5px); }
}

@keyframes pulse-whatsapp {
    0% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7); }
    70% { box-shadow: 0 0 0 10px rgba(37, 211, 102, 0); }
    100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); }
}

/* ===== SCROLL ANIMATIONS ===== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease-out;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.slide-in-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: all 0.8s ease-out;
}

.slide-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.slide-in-right {
    opacity: 0;
    transform: translateX(50px);
    transition: all 0.8s ease-out;
}

.slide-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}