/**
 * ============================================
 * CATÁLOGO VIRTUAL - tecnosoldas
 * CSS Principal - Landing Page
 * ============================================
 * Design moderno baseado em tendências 2025
 * Mobile First | Performance Otimizada
 */

/* ============================================
   CSS VARIABLES - LIGHT MODE (default)
   ============================================ */
:root {
    /* Cores Primárias - Sobrescritas dinamicamente via PHP */
    --primary: #1a1a2e;
    --primary-light: #16213e;
    --primary-dark: #0f0f1a;
    --secondary: #e94560;
    --secondary-light: #ff6b6b;
    --accent: #f39c12;
    --accent-light: #f1c40f;

    /* Cores de Estado */
    --success: #27ae60;
    --warning: #f39c12;
    --danger: #e74c3c;
    --info: #3498db;

    /* Neutros - Light Mode */
    --white: #ffffff;
    --gray-50: #fafafa;
    --gray-100: #f5f5f5;
    --gray-200: #e5e5e5;
    --gray-300: #d4d4d4;
    --gray-400: #a3a3a3;
    --gray-500: #737373;
    --gray-600: #525252;
    --gray-700: #404040;
    --gray-800: #262626;
    --gray-900: #171717;
    --black: #0a0a0a;

    /* Cores de Fundo e Texto - Light Mode */
    --bg-body: #ffffff;
    --bg-section: #f8f9fa;
    --bg-card: #ffffff;
    --text-heading: #1a1a2e;
    --text-body: #525252;
    --text-muted: #737373;
    --border-color: #e5e5e5;

    /* Tipografia */
    --font-heading: 'Montserrat', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

    /* Tamanhos de Fonte */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;
    --text-6xl: 3.75rem;

    /* Espaçamentos */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;

    /* Bordas */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    /* Sombras */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
    --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);

    /* Transições */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;

    /* Container */
    --container-max: 1280px;
    --header-height: 80px;
}

/* ============================================
   CSS VARIABLES - DARK MODE
   ============================================ */
[data-theme="dark"] {
    /* Neutros Invertidos */
    --white: #1a1a2e;
    --gray-50: #0f0f1a;
    --gray-100: #1a1a2e;
    --gray-200: #242438;
    --gray-300: #2a2a3e;
    --gray-400: #6c6c7c;
    --gray-500: #a0a0b0;
    --gray-600: #c0c0c8;
    --gray-700: #d0d0d8;
    --gray-800: #e0e0e8;
    --gray-900: #f0f0f5;
    --black: #ffffff;

    /* Cores de Fundo e Texto - Dark Mode */
    --bg-body: #0f0f1a;
    --bg-section: #1a1a2e;
    --bg-card: #242438;
    --text-heading: #ffffff;
    --text-body: #c0c0c8;
    --text-muted: #a0a0b0;
    --border-color: #2a2a3e;

    /* Sombras mais intensas no dark mode */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.2);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.3);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.4);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.5);
}

/* Dark mode body background */
[data-theme="dark"] body {
    background-color: var(--bg-body);
    color: var(--text-body);
}

/* Dark mode header */
[data-theme="dark"] .header {
    background: rgba(15, 15, 26, 0.95);
    border-bottom-color: var(--border-color);
}

[data-theme="dark"] .header.scrolled {
    background: rgba(15, 15, 26, 0.98);
}

/* Dark mode navigation */
[data-theme="dark"] .nav-mobile {
    background: var(--bg-body);
}

[data-theme="dark"] .nav-menu a,
[data-theme="dark"] .nav-mobile a {
    color: var(--text-body);
}

[data-theme="dark"] .nav-menu a:hover,
[data-theme="dark"] .nav-mobile a:hover {
    color: var(--secondary);
}

/* Dark mode search bar */
[data-theme="dark"] .search-bar {
    background: var(--bg-section);
    border-top-color: var(--border-color);
}

[data-theme="dark"] .search-bar input {
    background: var(--bg-card);
    color: var(--text-heading);
    border-color: var(--border-color);
}

/* Dark mode sections */
[data-theme="dark"] .hero,
[data-theme="dark"] .categories,
[data-theme="dark"] .about,
[data-theme="dark"] .contact {
    background: var(--bg-body);
}

[data-theme="dark"] .products,
[data-theme="dark"] .features {
    background: var(--bg-section);
}

/* Dark mode cards */
[data-theme="dark"] .category-card,
[data-theme="dark"] .product-card,
[data-theme="dark"] .feature-card {
    background: var(--bg-card);
    border-color: var(--border-color);
}

[data-theme="dark"] .category-card:hover,
[data-theme="dark"] .product-card:hover,
[data-theme="dark"] .feature-card:hover {
    border-color: var(--secondary);
}

/* Dark mode text */
[data-theme="dark"] .section-title,
[data-theme="dark"] .product-name,
[data-theme="dark"] .category-name,
[data-theme="dark"] h1, [data-theme="dark"] h2, [data-theme="dark"] h3, [data-theme="dark"] h4 {
    color: var(--text-heading);
}

[data-theme="dark"] .section-subtitle,
[data-theme="dark"] .product-desc,
[data-theme="dark"] p {
    color: var(--text-body);
}

/* Dark mode footer */
[data-theme="dark"] .footer {
    background: var(--bg-section);
    border-top-color: var(--border-color);
}

[data-theme="dark"] .footer-bottom {
    background: var(--bg-body);
    border-top-color: var(--border-color);
}

/* Dark mode form inputs */
[data-theme="dark"] .form-input,
[data-theme="dark"] .form-textarea,
[data-theme="dark"] .form-select,
[data-theme="dark"] input,
[data-theme="dark"] textarea,
[data-theme="dark"] select {
    background: var(--bg-card);
    color: var(--text-heading);
    border-color: var(--border-color);
}

[data-theme="dark"] .form-input:focus,
[data-theme="dark"] .form-textarea:focus,
[data-theme="dark"] input:focus,
[data-theme="dark"] textarea:focus {
    border-color: var(--secondary);
}

[data-theme="dark"] .form-input::placeholder,
[data-theme="dark"] input::placeholder,
[data-theme="dark"] textarea::placeholder {
    color: var(--text-muted);
}

/* Dark mode modal */
[data-theme="dark"] .modal-box {
    background: var(--bg-card);
}

/* Dark mode contact info */
[data-theme="dark"] .contact-item {
    background: var(--bg-card);
}

/* ============================================
   THEME TOGGLE BUTTON
   ============================================ */
.theme-toggle {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 2px solid var(--gray-300);
    border-radius: 50%;
    color: var(--gray-600);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.theme-toggle:hover {
    border-color: var(--secondary);
    color: var(--secondary);
    transform: rotate(15deg);
}

.theme-toggle i {
    font-size: 1rem;
    transition: transform 0.3s ease;
}

/* Hide icons based on theme */
[data-theme="dark"] .theme-toggle {
    border-color: var(--gray-500);
    color: var(--gray-400);
}

[data-theme="dark"] .theme-toggle:hover {
    border-color: var(--secondary);
    color: var(--secondary);
}

[data-theme="dark"] .theme-toggle .fa-moon {
    display: none;
}

:root:not([data-theme="dark"]) .theme-toggle .fa-sun {
    display: none;
}

/* ============================================
   RESET & BASE
   ============================================ */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-height);
}

body {
    font-family: var(--font-body);
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--gray-800);
    background-color: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

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

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

ul, ol {
    list-style: none;
}

/* ============================================
   UTILITIES
   ============================================ */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

@media (min-width: 768px) {
    .container {
        padding: 0 var(--spacing-xl);
    }
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 0.75rem 1.5rem;
    font-family: var(--font-heading);
    font-size: var(--text-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.025em;
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(135deg, var(--secondary), var(--secondary-light));
    color: var(--white);
    box-shadow: 0 4px 15px rgba(233, 69, 96, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(233, 69, 96, 0.4);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}

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

.btn-lg {
    padding: 1rem 2rem;
    font-size: var(--text-base);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: var(--text-xs);
}

.btn-block {
    width: 100%;
}

.btn-whatsapp {
    background: #25D366;
    color: var(--white);
}

.btn-whatsapp:hover {
    background: #128C7E;
    box-shadow: 0 8px 25px rgba(37, 211, 102, 0.4);
}

/* ============================================
   HEADER
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background: var(--primary);
    z-index: 1000;
    transition: all var(--transition-base);
}

.header.scrolled {
    background: rgba(26, 26, 46, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-lg);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
}

.logo img {
    height: 45px;
    width: auto;
}

.nav-desktop {
    display: none;
}

@media (min-width: 992px) {
    .nav-desktop {
        display: block;
    }
}

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

.nav-menu a {
    color: var(--white);
    font-weight: 500;
    font-size: var(--text-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--secondary);
    transition: width var(--transition-base);
}

.nav-menu a:hover::after {
    width: 100%;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.btn-search,
.btn-menu {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: var(--text-lg);
    border-radius: var(--radius-md);
    transition: background var(--transition-fast);
}

.btn-search:hover,
.btn-menu:hover {
    background: rgba(255, 255, 255, 0.1);
}

.btn-menu {
    flex-direction: column;
    gap: 5px;
}

.btn-menu span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--white);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

.btn-menu.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.btn-menu.active span:nth-child(2) {
    opacity: 0;
}

.btn-menu.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

@media (min-width: 992px) {
    .btn-menu {
        display: none;
    }
}

.header-actions .btn-whatsapp {
    display: none;
}

@media (min-width: 768px) {
    .header-actions .btn-whatsapp {
        display: inline-flex;
    }
}

/* Search Bar */
.search-bar {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: var(--primary-light);
    padding: var(--spacing-md) 0;
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.search-bar.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
}

.search-form {
    display: flex;
    gap: var(--spacing-sm);
}

.search-form input {
    flex: 1;
    padding: 0.75rem 1rem;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-md);
    color: var(--white);
    font-size: var(--text-base);
}

.search-form input::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.search-form button {
    padding: 0 1.25rem;
    background: var(--secondary);
    color: var(--white);
    border-radius: var(--radius-md);
}

/* Mobile Nav */
.nav-mobile {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    height: calc(100vh - var(--header-height));
    background: var(--primary);
    padding: var(--spacing-xl);
    transform: translateX(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    overflow-y: auto;
}

.nav-mobile.active {
    transform: translateX(0);
    opacity: 1;
    visibility: visible;
}

.nav-menu-mobile {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.nav-menu-mobile a {
    color: var(--white);
    font-size: var(--text-xl);
    font-weight: 600;
    display: block;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-mobile-contact {
    margin-top: var(--spacing-2xl);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.nav-mobile-contact a {
    color: var(--gray-300);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: calc(var(--header-height) + var(--spacing-3xl)) 0 var(--spacing-3xl);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        135deg,
        rgba(26, 26, 46, 0.95) 0%,
        rgba(22, 33, 62, 0.85) 50%,
        rgba(26, 26, 46, 0.9) 100%
    );
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 6vw, 3.5rem);
    font-weight: 800;
    color: var(--white);
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.hero-title span {
    color: var(--secondary);
}

.hero-subtitle {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    color: var(--accent);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.hero-text {
    font-size: var(--text-lg);
    color: var(--gray-300);
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    align-items: center;
}

@media (min-width: 576px) {
    .hero-buttons {
        flex-direction: row;
        justify-content: center;
    }
}

.hero-scroll {
    position: absolute;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
}

.hero-scroll a {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--gray-400);
    font-size: var(--text-sm);
    animation: bounce 2s infinite;
}

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

/* Animations */
.animate-fade-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 0.8s ease forwards;
}

.delay-1 { animation-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; }
.delay-3 { animation-delay: 0.6s; }

@keyframes fadeUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   SECTIONS COMMON
   ============================================ */
section {
    padding: var(--spacing-3xl) 0;
}

@media (min-width: 768px) {
    section {
        padding: 5rem 0;
    }
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-tag {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, var(--secondary), var(--accent));
    color: var(--white);
    font-size: var(--text-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-md);
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 800;
    color: var(--primary);
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    font-size: var(--text-lg);
    color: var(--gray-500);
}

/* ============================================
   CATEGORIES
   ============================================ */
.categories {
    background: var(--gray-50);
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

@media (min-width: 576px) {
    .categories-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 992px) {
    .categories-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: var(--spacing-lg);
    }
}

.category-card {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    text-align: center;
    box-shadow: var(--shadow-sm);
    border: 2px solid transparent;
    transition: all var(--transition-base);
}

.category-card:hover,
.category-card.active {
    border-color: var(--secondary);
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.category-card.active {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
}

.category-card.active .category-icon,
.category-card.active .category-name,
.category-card.active .category-desc {
    color: var(--white);
}

.category-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--secondary), var(--accent));
    color: var(--white);
    font-size: var(--text-xl);
    border-radius: var(--radius-lg);
}

.category-name {
    font-family: var(--font-heading);
    font-size: var(--text-base);
    font-weight: 700;
    color: var(--primary);
    margin-bottom: var(--spacing-xs);
}

.category-desc {
    font-size: var(--text-sm);
    color: var(--gray-500);
    display: none;
}

@media (min-width: 768px) {
    .category-desc {
        display: block;
    }
}

.category-all {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
}

.category-all .category-icon {
    background: rgba(255, 255, 255, 0.2);
}

.category-all .category-name,
.category-all .category-desc {
    color: var(--white);
}

/* ============================================
   PRODUCTS
   ============================================ */
.products-grid {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: var(--spacing-lg);
}

@media (min-width: 576px) {
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    .products-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1200px) {
    .products-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.product-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.product-image {
    position: relative;
    aspect-ratio: 1;
    overflow: hidden;
    background: var(--gray-100);
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.product-card:hover .product-image img {
    transform: scale(1.1);
}

.product-no-image {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-400);
    font-size: 3rem;
}

.product-badge {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    padding: 0.375rem 0.75rem;
    background: var(--secondary);
    color: var(--white);
    font-size: var(--text-xs);
    font-weight: 700;
    text-transform: uppercase;
    border-radius: var(--radius-md);
}

.product-actions {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    opacity: 0;
    transform: translateX(10px);
    transition: all var(--transition-base);
}

.product-card:hover .product-actions {
    opacity: 1;
    transform: translateX(0);
}

.btn-action {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--white);
    color: var(--primary);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-fast);
}

.btn-action:hover {
    background: var(--secondary);
    color: var(--white);
}

.btn-action.btn-whatsapp:hover {
    background: #25D366;
}

.product-info {
    padding: var(--spacing-lg);
}

.product-category {
    display: inline-block;
    font-size: var(--text-xs);
    color: var(--secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.product-name {
    font-family: var(--font-heading);
    font-size: var(--text-base);
    font-weight: 700;
    color: var(--primary);
    margin-bottom: var(--spacing-sm);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-desc {
    font-size: var(--text-sm);
    color: var(--gray-500);
    margin-bottom: var(--spacing-md);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-meta {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.product-sku,
.product-brand {
    font-size: var(--text-xs);
    color: var(--gray-500);
}

.product-sku {
    padding: 0.25rem 0.5rem;
    background: var(--gray-100);
    border-radius: var(--radius-sm);
}

.product-price {
    margin-bottom: var(--spacing-md);
}

.price-old {
    font-size: var(--text-sm);
    color: var(--gray-400);
    text-decoration: line-through;
    margin-right: var(--spacing-sm);
}

.price-current {
    font-family: var(--font-heading);
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--secondary);
}

.price-consult {
    font-size: var(--text-sm);
    color: var(--accent);
    font-weight: 600;
}

.products-empty {
    text-align: center;
    padding: var(--spacing-3xl) var(--spacing-md);
    color: var(--gray-500);
}

.products-empty i {
    font-size: 4rem;
    color: var(--gray-300);
    margin-bottom: var(--spacing-lg);
}

.products-pagination {
    margin-top: var(--spacing-2xl);
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
}

.pagination-list {
    display: flex;
    gap: var(--spacing-xs);
}

.pagination-list li a,
.pagination-list li span {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 var(--spacing-sm);
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    color: var(--gray-600);
    transition: all var(--transition-fast);
}

.pagination-list li a:hover {
    background: var(--secondary);
    border-color: var(--secondary);
    color: var(--white);
}

.pagination-current {
    background: var(--secondary) !important;
    border-color: var(--secondary) !important;
    color: var(--white) !important;
}

.pagination-ellipsis {
    border: none !important;
    background: transparent !important;
}

/* ============================================
   ABOUT
   ============================================ */
.about {
    background: var(--white);
    overflow: hidden;
}

.about-content {
    display: grid;
    gap: var(--spacing-2xl);
    align-items: center;
}

@media (min-width: 992px) {
    .about-content {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-3xl);
    }
}

.about-text .section-tag {
    margin-bottom: var(--spacing-md);
}

.about-text .section-title {
    text-align: left;
    margin-bottom: var(--spacing-md);
}

.about-subtitle {
    font-size: var(--text-lg);
    color: var(--accent);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
}

.about-description {
    font-size: var(--text-base);
    color: var(--gray-600);
    line-height: 1.8;
    margin-bottom: var(--spacing-xl);
}

.about-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.feature-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.feature-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--secondary), var(--accent));
    color: var(--white);
    border-radius: var(--radius-md);
    font-size: var(--text-lg);
    flex-shrink: 0;
}

.feature-text {
    display: flex;
    flex-direction: column;
}

.feature-text strong {
    font-family: var(--font-heading);
    font-size: var(--text-lg);
    color: var(--primary);
}

.feature-text span {
    font-size: var(--text-sm);
    color: var(--gray-500);
}

.about-image {
    position: relative;
}

.about-image-wrapper {
    position: relative;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.about-image-wrapper img {
    width: 100%;
    height: auto;
}

.about-badge {
    position: absolute;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: var(--secondary);
    color: var(--white);
    border-radius: var(--radius-xl);
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.badge-number {
    display: block;
    font-family: var(--font-heading);
    font-size: var(--text-3xl);
    font-weight: 800;
    line-height: 1;
}

.badge-text {
    font-size: var(--text-sm);
    line-height: 1.3;
}

/* ============================================
   CTA
   ============================================ */
.cta {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    padding: var(--spacing-2xl) 0;
}

.cta-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-lg);
    text-align: center;
}

@media (min-width: 992px) {
    .cta-content {
        flex-direction: row;
        text-align: left;
    }
}

.cta-icon {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #25D366;
    color: var(--white);
    font-size: 2.5rem;
    border-radius: var(--radius-xl);
    flex-shrink: 0;
}

.cta-text {
    flex: 1;
}

.cta-text h2 {
    font-family: var(--font-heading);
    font-size: var(--text-2xl);
    color: var(--white);
    margin-bottom: var(--spacing-xs);
}

.cta-text p {
    color: var(--gray-300);
}

.btn-whatsapp-cta {
    background: #25D366;
    color: var(--white);
    padding: 1rem 2rem;
    white-space: nowrap;
}

.btn-whatsapp-cta:hover {
    background: #128C7E;
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(37, 211, 102, 0.4);
}

/* ============================================
   CONTACT
   ============================================ */
.contact {
    background: var(--gray-50);
}

.contact-grid {
    display: grid;
    gap: var(--spacing-2xl);
}

@media (min-width: 992px) {
    .contact-grid {
        grid-template-columns: 1fr 1.2fr;
    }
}

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

.contact-item {
    display: flex;
    gap: var(--spacing-md);
}

.contact-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--secondary), var(--accent));
    color: var(--white);
    border-radius: var(--radius-md);
    font-size: var(--text-lg);
    flex-shrink: 0;
}

.contact-text strong {
    display: block;
    font-family: var(--font-heading);
    font-size: var(--text-base);
    color: var(--primary);
    margin-bottom: var(--spacing-xs);
}

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

.contact-text a {
    color: var(--gray-600);
}

.contact-text a:hover {
    color: var(--secondary);
}

.contact-social {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.contact-social a {
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary);
    color: var(--white);
    border-radius: var(--radius-md);
    font-size: var(--text-lg);
    transition: all var(--transition-fast);
}

.contact-social a:hover {
    background: var(--secondary);
    transform: translateY(-3px);
}

/* Contact Form */
.contact-form-wrapper {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

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

.form-row {
    display: grid;
    gap: var(--spacing-lg);
}

@media (min-width: 576px) {
    .form-row {
        grid-template-columns: repeat(2, 1fr);
    }
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--gray-50);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: var(--text-base);
    color: var(--gray-800);
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--secondary);
    background: var(--white);
    box-shadow: 0 0 0 3px rgba(233, 69, 96, 0.1);
}

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

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--primary);
    color: var(--white);
    padding: var(--spacing-3xl) 0 0;
}

.footer-content {
    display: grid;
    gap: var(--spacing-xl);
    padding-bottom: var(--spacing-2xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

@media (min-width: 576px) {
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    .footer-content {
        grid-template-columns: 2fr 1fr 1fr 1.5fr;
    }
}

.footer-brand {
    max-width: 280px;
}

.footer-logo {
    height: 50px;
    width: auto;
    margin-bottom: var(--spacing-md);
}

.footer-slogan {
    color: var(--gray-400);
    font-size: var(--text-sm);
    line-height: 1.6;
}

.footer-links h4,
.footer-categories h4,
.footer-contact h4 {
    font-family: var(--font-heading);
    font-size: var(--text-base);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: var(--white);
}

.footer-links ul,
.footer-categories ul,
.footer-contact ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-links a,
.footer-categories a {
    color: var(--gray-400);
    font-size: var(--text-sm);
    transition: color var(--transition-fast);
}

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

.footer-contact li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--gray-400);
    font-size: var(--text-sm);
}

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

.footer-bottom {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg) 0;
    text-align: center;
}

@media (min-width: 768px) {
    .footer-bottom {
        flex-direction: row;
        justify-content: space-between;
    }
}

.footer-bottom p {
    color: var(--gray-500);
    font-size: var(--text-sm);
}

.footer-dev i {
    color: var(--secondary);
}

/* ============================================
   WHATSAPP FLOAT
   ============================================ */
.whatsapp-float {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #25D366;
    color: var(--white);
    font-size: 1.75rem;
    border-radius: 50%;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    z-index: 999;
    transition: all var(--transition-base);
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 30px rgba(37, 211, 102, 0.5);
}

.whatsapp-tooltip {
    position: absolute;
    right: 75px;
    background: var(--primary);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
}

.whatsapp-float:hover .whatsapp-tooltip {
    opacity: 1;
    visibility: visible;
}

/* ============================================
   MODAL
   ============================================ */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
}

.modal-container {
    position: relative;
    width: 100%;
    max-width: 800px;
    max-height: 90vh;
    background: var(--white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transform: scale(0.9);
    transition: transform var(--transition-base);
}

.modal.active .modal-container {
    transform: scale(1);
}

.modal-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--white);
    color: var(--gray-600);
    border-radius: 50%;
    box-shadow: var(--shadow-md);
    z-index: 10;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--secondary);
    color: var(--white);
}

.modal-content {
    max-height: 90vh;
    overflow-y: auto;
    padding: var(--spacing-xl);
}

/* ============================================
   RESPONSIVE UTILITIES
   ============================================ */
@media (max-width: 767px) {
    .about-features {
        grid-template-columns: 1fr;
    }

    .feature-item {
        padding: var(--spacing-md);
        background: var(--gray-50);
        border-radius: var(--radius-lg);
    }
}