/* ============================================
   Precision Cut Tools - Estilos Principais
   ============================================ */

/* Variáveis CSS */
:root {
    /* Cores - Tema Claro Profissional */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-card: #ffffff;
    --bg-input: #f1f3f4;
    --accent: #E65100;
    --accent-hover: #BF360C;
    --accent-light: #FF9800;
    --text-primary: #212529;
    --text-secondary: #495057;
    --text-muted: #6c757d;
    --border: #dee2e6;
    --border-hover: #adb5bd;
    --success: #28a745;
    --error: #dc3545;
    
    /* Tipografia */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 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;
    
    /* Espaçamento */
    --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;
    
    /* Bordas */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;
    
    /* Sombras */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.12);
    --shadow-glow: 0 4px 15px rgba(230, 81, 0, 0.25);
    
    /* Transições */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Z-index */
    --z-base: 1;
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal: 400;
    --z-tooltip: 500;
}

/* Reset e Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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(--text-primary);
    background-color: var(--bg-primary);
    -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-base);
}

ul, ol {
    list-style: none;
}

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

input, textarea, select {
    font-family: inherit;
    font-size: inherit;
}

/* Container */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-4);
}

@media (min-width: 640px) {
    .container {
        padding: 0 var(--spacing-6);
    }
}

@media (min-width: 1024px) {
    .container {
        padding: 0 var(--spacing-8);
    }
}

/* Tipografia Utilitária */
.text-accent {
    color: var(--accent);
}

/* ============================================
   Botões
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-6);
    font-size: var(--font-size-sm);
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn-primary {
    background-color: var(--accent);
    color: #ffffff;
}

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

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

.btn-outline:hover {
    border-color: var(--accent);
    color: var(--accent);
    background-color: rgba(230, 81, 0, 0.05);
    transform: translateY(-2px);
}

.btn-large {
    padding: var(--spacing-4) var(--spacing-8);
    font-size: var(--font-size-base);
}

.btn-small {
    padding: var(--spacing-2) var(--spacing-4);
    font-size: var(--font-size-xs);
}

.btn-submit {
    width: 100%;
    position: relative;
}

.btn-spinner {
    position: absolute;
    width: 20px;
    height: 20px;
    animation: spin 1s linear infinite;
}

.btn-spinner svg {
    width: 100%;
    height: 100%;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* ============================================
   Header / Navbar
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-fixed);
    transition: all var(--transition-base);
    padding: var(--spacing-4) 0;
}

.header.scrolled {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-3) 0;
}

/* Navbar mobile menu - tema claro */
.nav-menu.active {
    background-color: var(--bg-primary);
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-4);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    font-size: var(--font-size-xl);
    font-weight: 700;
}

.logo-icon {
    font-size: 1.5rem;
}

.logo-accent {
    color: var(--accent);
}

.nav-menu {
    display: none;
    align-items: center;
    gap: var(--spacing-6);
}

.nav-link {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-secondary);
    transition: color var(--transition-base);
    position: relative;
}

.nav-link:hover {
    color: var(--text-primary);
}

/* Navbar sobre o hero - texto branco */
.header:not(.scrolled) .nav-link {
    color: rgba(255, 255, 255, 0.9);
}

.header:not(.scrolled) .nav-link:hover {
    color: #ffffff;
}

.header:not(.scrolled) .logo-text {
    color: #ffffff;
}

.header:not(.scrolled) .hamburger,
.header:not(.scrolled) .hamburger::before,
.header:not(.scrolled) .hamburger::after {
    background-color: #ffffff;
}

/* Botão CTA na navbar - versão sobre hero */
.header:not(.scrolled) .nav-cta {
    background-color: var(--accent);
    color: #ffffff;
    border: none;
}

.header:not(.scrolled) .nav-cta:hover {
    background-color: #ffffff;
    color: var(--accent);
}

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

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

.nav-cta {
    display: none;
}

/* Menu Hamburguer */
.menu-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    width: 32px;
    height: 32px;
    padding: 0;
    background: none;
    border: none;
    cursor: pointer;
}

.hamburger,
.hamburger::before,
.hamburger::after {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--text-primary);
    transition: all var(--transition-base);
}

.hamburger {
    position: relative;
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    left: 0;
}

.hamburger::before {
    top: -7px;
}

.hamburger::after {
    top: 7px;
}

.menu-toggle.active .hamburger {
    background-color: transparent;
}

.menu-toggle.active .hamburger::before {
    transform: rotate(45deg);
    top: 0;
}

.menu-toggle.active .hamburger::after {
    transform: rotate(-45deg);
    top: 0;
}

/* Menu Mobile */
.nav-menu.active {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--bg-primary);
    padding: var(--spacing-6);
    gap: var(--spacing-4);
    z-index: var(--z-fixed);
}

.nav-menu.active .nav-link {
    font-size: var(--font-size-lg);
    padding: var(--spacing-3) 0;
}

/* Navbar Desktop */
@media (min-width: 1024px) {
    .nav-menu {
        display: flex;
    }
    
    .nav-cta {
        display: inline-flex;
    }
    
    .menu-toggle {
        display: none;
    }
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: calc(80px + var(--spacing-16)) var(--spacing-4) var(--spacing-16);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
}

.hero-bg-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.75) 0%, rgba(0, 0, 0, 0.6) 50%, rgba(0, 0, 0, 0.7) 100%);
    backdrop-filter: blur(1px);
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
    pointer-events: none;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background-color: var(--accent);
    border-radius: 50%;
    opacity: 0.3;
    animation: float 15s infinite ease-in-out;
}

@keyframes float {
    0%, 100% {
        transform: translateY(100vh) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 0.3;
    }
    90% {
        opacity: 0.3;
    }
    100% {
        transform: translateY(-100vh) rotate(720deg);
        opacity: 0;
    }
}

.hero-content {
    position: relative;
    z-index: var(--z-base);
    text-align: center;
    max-width: 800px;
    color: #ffffff;
}

.hero-content .hero-title {
    color: #ffffff;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-content .hero-subtitle {
    color: rgba(255, 255, 255, 0.95);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

/* Cor de destaque no hero */
.hero-content .text-accent {
    color: #FF9800;
    text-shadow: 0 0 20px rgba(255, 152, 0, 0.5);
}

.hero-content .btn-outline {
    color: #ffffff;
    border-color: rgba(255, 255, 255, 0.5);
}

.hero-content .btn-outline:hover {
    color: #ffffff;
    border-color: var(--accent);
    background-color: var(--accent);
    box-shadow: 0 4px 15px rgba(230, 81, 0, 0.4);
}

.hero-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-6);
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards;
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-8);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease 0.2s forwards;
}

.hero-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
    align-items: center;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease 0.4s forwards;
}

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

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

.scroll-indicator {
    display: block;
    width: 24px;
    height: 40px;
    border: 2px solid rgba(255, 255, 255, 0.5);
    border-radius: var(--radius-full);
    position: relative;
}

.scroll-indicator::before {
    content: '';
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background-color: #ffffff;
    border-radius: var(--radius-full);
    animation: scrollBounce 2s infinite;
}

@keyframes scrollBounce {
    0%, 100% {
        transform: translateX(-50%) translateY(0);
        opacity: 1;
    }
    50% {
        transform: translateX(-50%) translateY(12px);
        opacity: 0.5;
    }
}

@media (min-width: 640px) {
    .hero-title {
        font-size: var(--font-size-4xl);
    }
    
    .hero-buttons {
        flex-direction: row;
        justify-content: center;
    }
}

@media (min-width: 1024px) {
    .hero-title {
        font-size: var(--font-size-5xl);
    }
    
    .hero-subtitle {
        font-size: var(--font-size-xl);
    }
}

/* ============================================
   Seções Gerais
   ============================================ */
.section {
    padding: var(--spacing-16) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-12);
}

.section-tag {
    display: inline-block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-4);
}

.section-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-4);
    line-height: 1.3;
}

.section-description {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .section {
        padding: var(--spacing-20) 0;
    }
    
    .section-title {
        font-size: var(--font-size-3xl);
    }
}

/* ============================================
   Seção Produtos
   ============================================ */
.section-products {
    background-color: var(--bg-secondary);
}

.product-category {
    margin-bottom: var(--spacing-12);
}

.product-category:last-child {
    margin-bottom: 0;
}

.category-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-6);
    padding-bottom: var(--spacing-4);
    border-bottom: 1px solid var(--border);
}

.category-icon {
    width: 24px;
    height: 24px;
    color: var(--accent);
}

.products-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-6);
}

.product-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-6);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.product-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent);
    box-shadow: var(--shadow-lg);
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--accent-light));
    opacity: 0;
    transition: opacity var(--transition-base);
}

.product-card:hover::before {
    opacity: 1;
}

.product-badge {
    display: inline-block;
    font-size: var(--font-size-xs);
    font-weight: 600;
    padding: var(--spacing-1) var(--spacing-3);
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-4);
}

.badge-turning {
    background-color: rgba(255, 107, 0, 0.2);
    color: var(--accent);
}

.badge-roughing {
    background-color: rgba(239, 68, 68, 0.2);
    color: #ef4444;
}

.badge-drilling {
    background-color: rgba(59, 130, 246, 0.2);
    color: #3b82f6;
}

.badge-holder {
    background-color: rgba(16, 185, 129, 0.2);
    color: #10b981;
}

.badge-threading {
    background-color: rgba(168, 85, 247, 0.2);
    color: #a855f7;
}

.badge-grooving {
    background-color: rgba(236, 72, 153, 0.2);
    color: #ec4899;
}

.badge-milling {
    background-color: rgba(14, 165, 233, 0.2);
    color: #0ea5e9;
}

.badge-reaming {
    background-color: rgba(245, 158, 11, 0.2);
    color: #f59e0b;
}

.product-image {
    width: 100%;
    height: 200px;
    margin-bottom: var(--spacing-4);
    border-radius: var(--radius-md);
    overflow: hidden;
    background-color: var(--bg-input);
}

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

.product-card:hover .product-image img {
    transform: scale(1.05);
}

.product-icon {
    width: 64px;
    height: 64px;
    color: var(--accent);
    margin-bottom: var(--spacing-4);
}

.product-icon svg {
    width: 100%;
    height: 100%;
}

.product-name {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-3);
}

.product-specs {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-3);
}

.product-specs p {
    margin-bottom: var(--spacing-1);
}

.product-description {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-4);
    line-height: 1.5;
}

.product-coating {
    display: flex;
    gap: var(--spacing-2);
    margin-bottom: var(--spacing-4);
    flex-wrap: wrap;
}

.coating-tag {
    font-size: var(--font-size-xs);
    padding: var(--spacing-1) var(--spacing-2);
    background-color: var(--bg-input);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
}

@media (min-width: 640px) {
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .products-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ============================================
   Seção Diferenciais
   ============================================ */
.differentials-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-6);
}

.differential-card {
    display: flex;
    gap: var(--spacing-4);
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-6);
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.differential-card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.differential-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    background-color: rgba(230, 81, 0, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
}

.differential-icon svg {
    width: 24px;
    height: 24px;
}

.differential-content h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-2);
}

.differential-content p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.6;
}

@media (min-width: 768px) {
    .differentials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ============================================
   Seção Quem Somos
   ============================================ */
.section-about {
    background-color: var(--bg-secondary);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-10);
    align-items: center;
}

.about-content {
    max-width: 600px;
}

.about-content .section-tag,
.about-content .section-title {
    text-align: left;
}

.about-content p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-4);
    line-height: 1.7;
}

.about-stats {
    display: flex;
    gap: var(--spacing-8);
    margin-top: var(--spacing-8);
    padding-top: var(--spacing-8);
    border-top: 1px solid var(--border);
}

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

.stat-number {
    display: block;
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--accent);
    line-height: 1;
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-top: var(--spacing-2);
}

.about-image {
    order: -1;
}

.about-image-wrapper {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
}

.about-img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform var(--transition-slow);
}

.about-image-wrapper:hover .about-img {
    transform: scale(1.02);
}

.about-image-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--spacing-6);
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
}

.about-badge {
    display: inline-block;
    background-color: var(--accent);
    color: white;
    padding: var(--spacing-2) var(--spacing-4);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.image-placeholder {
    background-color: var(--bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border);
}

.image-placeholder svg {
    width: 100%;
    height: auto;
}

@media (min-width: 1024px) {
    .about-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-16);
    }
    
    .about-image {
        order: 0;
    }
}

/* ============================================
   Seção Formulário de Orçamento
   ============================================ */
.section-quote {
    background-color: var(--bg-primary);
}

.quote-form-wrapper {
    max-width: 800px;
    margin: 0 auto;
}

.quote-form {
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-6);
}

@media (min-width: 640px) {
    .quote-form {
        padding: var(--spacing-10);
    }
}

/* Honeypot (anti-spam) */
.honeypot {
    position: absolute;
    left: -9999px;
    opacity: 0;
    pointer-events: none;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-4);
}

@media (min-width: 640px) {
    .form-row {
        grid-template-columns: repeat(2, 1fr);
    }
}

.form-group {
    margin-bottom: var(--spacing-4);
}

.form-group label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    margin-bottom: var(--spacing-2);
    color: var(--text-primary);
}

.form-group label .hint {
    font-weight: 400;
    color: var(--text-muted);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-3) var(--spacing-4);
    background-color: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: var(--font-size-base);
    transition: all var(--transition-base);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(255, 107, 0, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23666' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--spacing-4) center;
    padding-right: var(--spacing-10);
}

.form-group select option {
    background-color: var(--bg-card);
    color: var(--text-primary);
}

/* Checkboxes */
.checkbox-group {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-3);
}

@media (min-width: 640px) {
    .checkbox-group {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .checkbox-group {
        grid-template-columns: repeat(3, 1fr);
    }
}

.checkbox-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    cursor: pointer;
    padding: var(--spacing-2);
    border-radius: var(--radius-md);
    transition: background-color var(--transition-fast);
}

.checkbox-item:hover {
    background-color: var(--bg-input);
}

.checkbox-item input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.checkmark {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.checkbox-item input[type="checkbox"]:checked + .checkmark {
    background-color: var(--accent);
    border-color: var(--accent);
}

.checkmark::after {
    content: '';
    width: 5px;
    height: 9px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg) translate(-1px, -1px);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.checkbox-item input[type="checkbox"]:checked + .checkmark::after {
    opacity: 1;
}

.checkbox-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.checkbox-item:hover .checkbox-label {
    color: var(--text-primary);
}

/* Mensagens de erro */
.error-message {
    display: block;
    font-size: var(--font-size-xs);
    color: var(--error);
    margin-top: var(--spacing-1);
    min-height: 18px;
}

.form-group input.error,
.form-group select.error {
    border-color: var(--error);
}

/* Mensagens de sucesso/erro do formulário */
.form-message {
    text-align: center;
    padding: var(--spacing-10);
    background-color: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
}

.form-success {
    border-color: var(--success);
}

.form-error {
    border-color: var(--error);
}

.message-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-2xl);
    margin: 0 auto var(--spacing-6);
}

.form-success .message-icon {
    background-color: rgba(34, 197, 94, 0.2);
    color: var(--success);
}

.form-error .message-icon {
    background-color: rgba(239, 68, 68, 0.2);
    color: var(--error);
}

.form-message h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-3);
}

.form-message p {
    color: var(--text-secondary);
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border);
    padding: var(--spacing-16) 0 var(--spacing-8);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-10);
    margin-bottom: var(--spacing-10);
}

.footer-brand .logo {
    margin-bottom: var(--spacing-4);
}

.footer-description {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    max-width: 300px;
}

.footer-contact h4,
.footer-social h4,
.footer-links h4 {
    font-size: var(--font-size-base);
    font-weight: 600;
    margin-bottom: var(--spacing-4);
}

.contact-list li {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-3);
    font-size: var(--font-size-sm);
}

.contact-list svg {
    width: 18px;
    height: 18px;
    color: var(--accent);
    flex-shrink: 0;
    margin-top: 2px;
}

.contact-list a {
    color: var(--text-secondary);
    transition: color var(--transition-base);
}

.contact-list a:hover {
    color: var(--accent);
}

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

.social-link {
    width: 40px;
    height: 40px;
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

.social-link svg {
    width: 20px;
    height: 20px;
    color: var(--text-secondary);
}

.social-link:hover {
    border-color: var(--accent);
    background-color: rgba(255, 107, 0, 0.1);
}

.social-link:hover svg {
    color: var(--accent);
}

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

.quick-links a {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    transition: color var(--transition-base);
}

.quick-links a:hover {
    color: var(--accent);
}

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

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

@media (min-width: 640px) {
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .footer-grid {
        grid-template-columns: 2fr 1.5fr 1fr 1fr;
    }
}

/* ============================================
   Botão WhatsApp Flutuante
   ============================================ */
.whatsapp-float {
    position: fixed;
    bottom: var(--spacing-6);
    right: var(--spacing-6);
    width: 56px;
    height: 56px;
    background-color: #25d366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
    transition: all var(--transition-base);
    z-index: var(--z-fixed);
}

.whatsapp-float svg {
    width: 28px;
    height: 28px;
    color: white;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.5);
}

.whatsapp-tooltip {
    position: absolute;
    right: 64px;
    background-color: var(--bg-card);
    color: var(--text-primary);
    padding: var(--spacing-2) var(--spacing-4);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    border: 1px solid var(--border);
}

.whatsapp-tooltip::after {
    content: '';
    position: absolute;
    right: -6px;
    top: 50%;
    transform: translateY(-50%);
    border-width: 6px 0 6px 6px;
    border-style: solid;
    border-color: transparent transparent transparent var(--bg-card);
}

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

/* ============================================
   Animações de Scroll
   ============================================ */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}

/* Delay para elementos sequenciais */
.product-card:nth-child(1) { transition-delay: 0s; }
.product-card:nth-child(2) { transition-delay: 0.1s; }
.product-card:nth-child(3) { transition-delay: 0.2s; }
.product-card:nth-child(4) { transition-delay: 0.3s; }
.product-card:nth-child(5) { transition-delay: 0.4s; }
.product-card:nth-child(6) { transition-delay: 0.5s; }

.differential-card:nth-child(1) { transition-delay: 0s; }
.differential-card:nth-child(2) { transition-delay: 0.1s; }
.differential-card:nth-child(3) { transition-delay: 0.2s; }
.differential-card:nth-child(4) { transition-delay: 0.3s; }

/* ============================================
   Utilitários
   ============================================ */
[hidden] {
    display: none !important;
}

/* Scrollbar personalizada */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* Seleção de texto */
::selection {
    background-color: var(--accent);
    color: white;
}

/* Foco visível para acessibilidade */
:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* Desabilitar animações para usuários que preferem redução de movimento */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    
    .animate-on-scroll {
        opacity: 1;
        transform: none;
    }
}