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

html {
    scroll-behavior: smooth;
    font-size: 16px; /* Base para rem */
    background-color: transparent;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #1a202c;
    overflow-x: hidden;
    background-color: transparent;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===== VARIÁVEIS CSS ===== */
:root {
    /* Cores principais */
    --primary-blue: #1e40af;
    --primary-blue-light: #3b82f6;
    --primary-blue-dark: #1e3a8a;
    --secondary-blue: #60a5fa;
    --accent-blue: #dbeafe;
    
    /* Tons de cinza */
    --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;
    
    /* Cores de estado */
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    --info: #3b82f6;
    
    /* Tipografia */
    --font-primary: 'Inter', sans-serif;
    --font-heading: 'Poppins', sans-serif;
    
    /* 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 */
    --border-radius-sm: 0.375rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 0.75rem;
    --border-radius-xl: 1rem;
    --border-radius-2xl: 1.5rem;
    
    /* Sombras */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --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;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Z-index layers */
    --z-dropdown: 1000;
    --z-sticky: 1000;
    --z-fixed: 1001;
    --z-modal: 10000;
}

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

/* ===== ACCESSIBILITY ===== */
.skip-link {
    position: absolute;
    top: 6px;
    left: 6px;
    background: var(--primary-blue);
    color: white;
    padding: 8px;
    text-decoration: none;
    border-radius: var(--border-radius-sm);
    z-index: var(--z-modal);
    transition: opacity var(--transition-normal);
    opacity: 0;
    pointer-events: none;
}

.skip-link:focus {
    opacity: 1;
    pointer-events: auto;
}

/* Focus states */
.nav-link:focus,
.language-toggle:focus,
.btn:focus,
.form-group input:focus,
.form-group textarea:focus {
    outline: 2px solid var(--primary-blue);
    outline-offset: 2px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .scroll-indicator {
        display: none;
    }
}

/* ===== HEADER & NAVIGATION ===== */
/* TESTE TRANSPARÊNCIA - VERSÃO 1.3 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.2) !important;
    z-index: var(--z-sticky);
    border-bottom: 1px solid rgba(229, 231, 235, 0.2);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    transition: all var(--transition-normal);
    backdrop-filter: blur(10px) !important;
    -webkit-backdrop-filter: blur(10px) !important;
}

.header.scrolled {
    background: rgba(255, 255, 255, 1) !important;
    backdrop-filter: blur(0px) !important;
    -webkit-backdrop-filter: blur(0px) !important;
    border-bottom: 1px solid var(--gray-200);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.navbar {
    padding: 1rem 0;
    background: transparent !important;
    background-color: transparent !important;
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    background: transparent !important;
    background-color: transparent !important;
}

/* Logo */
.nav-brand .logo {
    height: 50px;
    max-width: 200px;
    transition: var(--transition-normal);
}

.nav-brand .logo[src*="White"] {
    display: none;
}

.nav-brand .logo[src*="Color"] {
    display: block;
}

/* Navigation Menu */
.nav-menu {
    display: flex;
    align-items: center;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
    margin: 0;
    padding: 0;
}

.nav-item {
    list-style: none;
}

.nav-link {
    text-decoration: none;
    color: var(--gray-900);
    font-weight: 600;
    font-size: 0.95rem;
    padding: 0.5rem 0;
    transition: color var(--transition-fast), transform var(--transition-fast);
    display: block;
    position: relative;
}

.header.scrolled .nav-link {
    color: var(--gray-700);
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-blue);
    transform: scale(1.07);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary-blue);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-normal);
}

.nav-link.active::after {
    transform: scaleX(1);
}

.nav-link:focus, 
.nav-link:active,
.language-toggle:focus, 
.language-toggle:active {
    outline: none !important;
    -webkit-tap-highlight-color: transparent;
}

/* Language Selector */
.language-selector {
    position: relative;
    margin-left: 2rem;
}

.language-toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: all var(--transition-normal);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-700);
}

.language-toggle:hover {
    background: rgba(255, 255, 255, 1);
    border-color: var(--primary-blue);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.language-toggle:focus, 
.language-toggle:active {
    outline: none !important;
    -webkit-tap-highlight-color: transparent;
}

/* Header state variations */
.header:not(.scrolled) .language-toggle {
    color: var(--gray-900);
    background-color: rgba(255, 255, 255, 0.3);
    font-weight: 600;
}

.header:not(.scrolled) .language-toggle i.fa-globe,
.header:not(.scrolled) .language-toggle i.fa-chevron-down {
    color: var(--gray-900);
}

.header:not(.scrolled) .language-toggle:hover {
    background-color: rgba(255, 255, 255, 0.5);
}

.header.scrolled .language-toggle {
    color: var(--gray-700);
    background-color: rgba(255, 255, 255, 0.9);
}

.header.scrolled .language-toggle:hover {
    background-color: rgba(255, 255, 255, 1);
}

.header.scrolled .language-toggle i.fa-globe,
.header.scrolled .language-toggle i.fa-chevron-down {
    color: var(--gray-700);
}

.current-lang {
    font-weight: 600;
}

.language-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background: white;
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-lg);
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-normal);
    z-index: var(--z-dropdown);
    margin-top: 0.5rem;
}

.language-selector.active .language-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.language-option {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    cursor: pointer;
    transition: background-color var(--transition-fast);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.language-option:last-child {
    border-bottom: none;
}

.language-option:hover {
    background-color: var(--gray-50);
}

.flag {
    font-size: 1.25rem;
}

.lang-name {
    flex: 1;
    font-weight: 500;
    color: var(--gray-800);
}

.lang-code {
    font-weight: 600;
    color: var(--primary-blue);
    font-size: 0.875rem;
}

/* Mobile Navigation Toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    padding: 0.5rem;
    border: none;
    background: none;
    transition: all var(--transition-normal);
    z-index: var(--z-fixed);
}

.nav-toggle:focus {
    outline: 2px solid var(--primary-blue);
    outline-offset: 2px;
    border-radius: 8px;
}

.bar {
    width: 25px;
    height: 3px;
    background-color: var(--gray-700);
    margin: 3px 0;
    transition: var(--transition-normal);
    border-radius: 2px;
}

.nav-toggle.active .bar:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
}

.nav-toggle.active .bar:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active .bar:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
}

/* ===== HERO SECTION ===== */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.hero-video,
.hero-fallback {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.hero-fallback {
    display: block;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(30, 64, 175, 0.8) 0%, rgba(59, 130, 246, 0.6) 100%);
    z-index: 1;
}

.hero-overlay-soft {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.3) 0%, rgba(0, 0, 0, 0.1) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 2rem;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    font-weight: 800;
    color: white;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2.5rem;
    line-height: 1.6;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.scroll-arrow {
    width: 30px;
    height: 30px;
    border: 2px solid white;
    border-top: none;
    border-left: none;
    transform: rotate(45deg);
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0) rotate(45deg);
    }
    40% {
        transform: translateY(-10px) rotate(45deg);
    }
    60% {
        transform: translateY(-5px) rotate(45deg);
    }
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--border-radius-lg);
    transition: all var(--transition-normal);
    cursor: pointer;
    border: none;
    position: relative;
    overflow: hidden;
    min-width: 160px;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: var(--primary-blue);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background: var(--primary-blue-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

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

/* ===== SECTIONS ===== */
section {
    padding: 5rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 1rem;
}

.section-divider {
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-blue), var(--secondary-blue));
    margin: 0 auto;
    border-radius: 2px;
}

/* ===== ABOUT SECTION ===== */
.about {
    background: var(--gray-50);
}

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

.about-description p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--gray-700);
    margin-bottom: 2rem;
    white-space: pre-line;
}

.about-paragraph {
    /* Estado inicial para animação da esquerda para direita */
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.about-paragraph.animate-in {
    opacity: 1;
    transform: translateX(0);
}

.about-visual {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.about-image {
    border-radius: var(--border-radius-lg);
    overflow: hidden;
}

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

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.stat-item {
    text-align: center;
    padding: 1.5rem;
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-normal);
    /* Estado inicial para animação */
    opacity: 0;
    transform: translateY(30px);
    transition: transform var(--transition-normal), opacity 0.6s ease-out, transform 0.6s ease-out;
}

.stat-item.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-blue);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--gray-600);
    font-weight: 500;
}

/* ===== SOLUTIONS SECTION ===== */
.solutions {
    background: white;
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.solution-card {
    background: white;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    border: 1px solid var(--gray-200);
    /* Estado inicial para animação */
    opacity: 0;
    transform: translateY(30px);
    transition: all var(--transition-normal), opacity 0.6s ease-out, transform 0.6s ease-out;
}

.solution-card.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.solution-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

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

.solution-image {
    height: 200px;
    overflow: hidden;
    position: relative;
}

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

.solution-title {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 1rem;
    padding: 1.5rem 1.5rem 0;
    line-height: 1.3;
}

.solution-info {
    padding: 0 1.5rem 1.5rem;
}

.solution-content {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.solution-description {
    font-size: 0.95rem;
    color: var(--gray-600);
    line-height: 1.6;
}

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

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.product-card {
    background: white;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    border: 1px solid var(--gray-200);
    /* Estado inicial para animação */
    opacity: 0;
    transform: translateY(30px);
    transition: all var(--transition-normal), opacity 0.6s ease-out, transform 0.6s ease-out;
}

.product-card.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

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

.product-image {
    height: 180px;
    overflow: hidden;
    position: relative;
}

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

.product-info {
    padding: 1.5rem;
}

.product-title {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 1rem;
}

.product-applications {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.product-applications span {
    background: transparent;
    color: var(--gray-600);
    padding: 0.25rem 0.75rem;
    border-radius: var(--border-radius-sm);
    font-size: 0.8rem;
    font-weight: 500;
    transition: all var(--transition-fast);
    border: 1px solid var(--gray-300);
}

.product-applications span:hover {
    background: var(--gray-100);
    color: var(--gray-800);
    border-color: var(--gray-400);
    transform: scale(1.02);
}

/* Product-specific styling */
.pe-image {
    filter: brightness(1.1);
    object-position: center 20%;
}

/* ===== CONTACT SECTION ===== */
.contact {
    background: white;
}

.contact-content {
    max-width: 1000px;
    margin: 0 auto;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.contact-intro {
    margin-bottom: 2rem;
}

.contact-intro p {
    font-size: 1.1rem;
    color: var(--gray-600);
    line-height: 1.7;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    /* Estado inicial para animação */
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.contact-item.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--primary-blue);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.contact-text h4 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
}

.contact-text p {
    color: var(--gray-600);
    line-height: 1.6;
}

.contact-text a {
    color: var(--primary-blue);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.contact-text a:hover {
    color: var(--primary-blue-dark);
}

/* Contact Form */
.contact-form {
    background: var(--gray-50);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    /* Estado inicial para animação */
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.contact-form.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    position: relative;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 2px solid var(--gray-200);
    border-radius: var(--border-radius-md);
    font-size: 1rem;
    transition: all var(--transition-normal);
    background: white;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

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

.form-group label {
    position: absolute;
    left: 1rem;
    top: 1rem;
    color: var(--gray-500);
    transition: all var(--transition-normal);
    pointer-events: none;
    background: white;
    padding: 0 0.25rem;
}

.form-group input:focus + label,
.form-group input:not(:placeholder-shown) + label,
.form-group textarea:focus + label,
.form-group textarea:not(:placeholder-shown) + label {
    top: -0.5rem;
    left: 0.75rem;
    font-size: 0.875rem;
    color: var(--primary-blue);
    font-weight: 500;
}

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

/* ===== FOOTER ===== */
.footer {
    background: var(--gray-900);
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-logo {
    height: 60px;
    width: auto;
    max-width: 200px;
    filter: brightness(0) invert(1);
    transition: filter var(--transition-normal), transform var(--transition-normal);
}

.footer-logo[src*=".svg"],
.footer-logo[src*=".png"] {
    filter: brightness(0) invert(1);
}

.footer-logo:hover {
    transform: scale(1.1);
}

.footer-slogan {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

.footer-links {
    display: flex;
    justify-content: flex-end;
}

.footer-section {
    display: flex;
    flex-direction: column;
    margin-right: 2rem;
}

.footer-section h4 {
    color: white;
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.footer-section ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin: 0;
    padding: 0;
}

.footer-section ul li {
    margin: 0;
}

.footer-section ul li a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color var(--transition-fast);
    font-size: 0.9rem;
}

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

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 1rem;
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.875rem;
}

/* ===== FLOATING ELEMENTS ===== */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--primary-blue);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-normal);
    z-index: var(--z-fixed);
    box-shadow: var(--shadow-lg);
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--primary-blue-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.whatsapp-button {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 60px;
    height: 60px;
    background: #25d366;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    text-decoration: none;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
    z-index: var(--z-sticky);
}

.whatsapp-button:hover {
    background: #128c7e;
    transform: scale(1.1);
    box-shadow: var(--shadow-xl);
}

.whatsapp-button.shifted {
    right: 5.5rem;
}

.whatsapp-button.shifted:hover {
    transform: scale(1.1);
}

/* ===== ANIMATIONS ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

.animate-in {
    animation: fadeInUp 0.6s ease-out;
}

.animate-in-left {
    animation: fadeInLeft 0.6s ease-out;
}

.animate-in-right {
    animation: fadeInRight 0.6s ease-out;
}

.animate-in-scale {
    animation: scaleIn 0.6s ease-out;
}

/* ===== UTILITY CLASSES ===== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.mb-5 { margin-bottom: 2.5rem; }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mt-5 { margin-top: 2.5rem; }

/* ===== STATES ===== */
.loaded {
    opacity: 1;
    transform: translateY(0);
}

.page-hidden {
    display: none;
}

.error-message {
    color: var(--error);
    font-size: 0.875rem;
    margin-top: 0.25rem;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

/* ===== NOTIFICATIONS ===== */
.notification {
    position: fixed;
    top: 2rem;
    right: 2rem;
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius-md);
    color: white;
    font-weight: 500;
    z-index: var(--z-modal);
    transform: translateX(100%);
    transition: transform var(--transition-normal);
    max-width: 400px;
    box-shadow: var(--shadow-lg);
}

.notification.show {
    transform: translateX(0);
}

.notification-success {
    background: var(--success);
}

.notification-error {
    background: var(--error);
}

.notification-info {
    background: var(--info);
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 1200px) {
    .navbar .container {
        padding: 0 1.5rem;
    }
    
    .nav-list {
        gap: 1.5rem;
    }
}

@media (max-width: 992px) {
    .nav-list {
        gap: 1rem;
    }
    
    .nav-link {
        font-size: 0.9rem;
    }
}

@media (max-width: 768px) {
    .navbar .container {
        padding: 0 1rem;
    }
    
    .nav-menu {
        position: fixed;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.95);
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        flex-direction: column;
        padding: 2rem;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
        border-top: 1px solid rgba(0, 0, 0, 0.08);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-list {
        flex-direction: column;
        gap: 1.5rem;
        width: 100%;
    }
    
    .nav-item {
        width: 100%;
    }
    
    .nav-item:last-child {
        margin-bottom: 0;
    }
    
    .nav-link {
        font-size: 1rem;
        padding: 0.75rem 0;
        text-align: center;
        border-bottom: 1px solid rgba(0, 0, 0, 0.05);
        color: var(--gray-800);
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .language-selector {
        margin-top: 1.5rem;
        align-self: center;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 250px;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .about-stats {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-links {
        justify-content: center;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .industries-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .navbar .container {
        padding: 0 0.75rem;
    }
    
    .nav-brand .logo {
        height: 40px;
        max-width: 150px;
    }
    
    .nav-menu {
        padding: 1.5rem;
    }
    
    .nav-link {
        font-size: 0.95rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .service-card,
    .industry-card {
        padding: 1.5rem;
    }
    
    .contact-form {
        padding: 1.5rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .back-to-top {
        width: 45px;
        height: 45px;
        font-size: 1.1rem;
        bottom: 1.5rem;
        right: 1.5rem;
    }
    
    .whatsapp-button {
        bottom: 1.5rem;
        right: 1.5rem;
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
    }
    
    .whatsapp-button.shifted {
        right: 6.5rem;
    }
}