/* ====================================
   GLOBAL STYLES & VARIABLES
   ==================================== */
:root {
    /* Colores Principales - Paleta Ejecutiva Azul */
    --primary-color: #0A2540;           /* Azul marino oscuro */
    --primary-light: #1E3A5F;           /* Azul marino medio */
    --secondary-color: #0891B2;         /* Azul-verde (Teal) */
    --accent-color: #14B8A6;            /* Teal claro */
    --accent-bright: #06B6D4;           /* Cyan brillante */
    
    /* Azules corporativos */
    --blue-dark: #1E40AF;               /* Azul oscuro */
    --blue-medium: #2563EB;             /* Azul medio */
    --blue-light: #3B82F6;              /* Azul claro */
    
    /* Grises */
    --dark-bg: #0F172A;                 /* Gris azulado oscuro */
    --dark-text: #1F2937;               /* Gris oscuro texto */
    --medium-gray: #4B5563;             /* Gris medio */
    --light-gray: #6B7280;              /* Gris claro */
    --border-gray: #D1D5DB;             /* Gris border */
    --bg-gray: #F3F4F6;                 /* Gris fondo */
    --bg-light: #F9FAFB;                /* Gris muy claro */
    
    /* Colores de texto */
    --text-dark: #1F2937;
    --text-light: #6B7280;
    --text-white: #FFFFFF;
    
    /* Colores de estado */
    --success-color: #14B8A6;           /* Teal para success */
    --warning-color: #0891B2;           /* Azul-verde para warning */
    --danger-color: #0A2540;            /* Azul marino para danger */
    
    /* Gradientes Ejecutivos */
    --gradient-primary: linear-gradient(135deg, #0A2540 0%, #1E3A5F 50%, #2563EB 100%);
    --gradient-secondary: linear-gradient(135deg, #0891B2 0%, #14B8A6 50%, #06B6D4 100%);
    --gradient-accent: linear-gradient(135deg, #1E3A5F 0%, #0891B2 100%);
    --gradient-dark: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
    
    /* Sombras */
    --shadow-sm: 0 1px 2px 0 rgba(10, 37, 64, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(10, 37, 64, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(10, 37, 64, 0.15);
    --shadow-xl: 0 20px 25px -5px rgba(10, 37, 64, 0.2);
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: #fff;
    overflow-x: hidden;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ====================================
   NAVIGATION
   ==================================== */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
    z-index: 1000;
    transition: var(--transition);
    border-bottom: 1px solid var(--border-gray);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 1);
    box-shadow: var(--shadow-lg);
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

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

.nav-logo h2 {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 1.5rem;
    font-weight: 800;
}

.nav-logo span {
    color: var(--secondary-color);
    font-size: 0.9rem;
    font-weight: 600;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 600;
    position: relative;
    transition: var(--transition);
    padding: 5px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: var(--gradient-secondary);
    transition: var(--transition);
    border-radius: 2px;
}

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

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

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

.nav-link.active::after {
    width: 100%;
    background: var(--gradient-primary);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    transition: var(--transition);
    border-radius: 2px;
}

/* ====================================
   HERO SECTION
   ==================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 100px 20px 50px;
    overflow: hidden;
    background: linear-gradient(135deg, #F9FAFB 0%, #FFFFFF 50%, #EFF6FF 100%);
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-primary);
    opacity: 0.03;
    z-index: -2;
}

.hero-background::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 80%, rgba(8, 145, 178, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(10, 37, 64, 0.08) 0%, transparent 50%);
}

.hero-content {
    text-align: center;
    max-width: 900px;
    z-index: 1;
    animation: fadeInUp 1s ease-out;
}

.hero-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--light-gray);
    margin-bottom: 2rem;
    font-weight: 500;
}

.hero-features {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.feature-badge {
    padding: 10px 24px;
    background: white;
    border: 2px solid var(--secondary-color);
    color: var(--primary-color);
    border-radius: 50px;
    font-weight: 700;
    font-size: 0.9rem;
    transition: var(--transition);
    letter-spacing: 0.5px;
}

.feature-badge:hover {
    background: var(--gradient-secondary);
    color: white;
    transform: translateY(-2px);
    border-color: transparent;
    box-shadow: var(--shadow-md);
}

.cta-button {
    padding: 16px 48px;
    font-size: 1.1rem;
    font-weight: 700;
    color: white;
    background: var(--gradient-accent);
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
    letter-spacing: 0.5px;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.2);
    transition: left 0.5s;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 28px rgba(8, 145, 178, 0.3);
}

.cta-button:hover::before {
    left: 100%;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 2rem;
    max-width: 500px;
    margin: 3rem auto 0;
}

.stat {
    text-align: center;
    padding: 1.5rem 1rem;
    background: white;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    border: 1px solid var(--border-gray);
}

.stat:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--secondary-color);
}

.stat h3 {
    font-size: 2.2rem;
    background: var(--gradient-secondary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 800;
}

.stat p {
    color: var(--text-light);
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ====================================
   SERVICES SECTION
   ==================================== */
.services {
    padding: 80px 20px;
    background: var(--bg-light);
}

.section-title {
    text-align: center;
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    position: relative;
    letter-spacing: -0.02em;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--gradient-secondary);
    border-radius: 2px;
}

.section-subtitle {
    text-align: center;
    color: var(--text-light);
    font-size: 1.1rem;
    margin-bottom: 3rem;
    font-weight: 500;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.service-card {
    background: white;
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    border: 1px solid var(--border-gray);
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: var(--gradient-secondary);
    transform: scaleX(0);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--secondary-color);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-card.featured {
    background: linear-gradient(135deg, #EFF6FF 0%, #DBEAFE 100%);
    border: 2px solid var(--secondary-color);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    display: block;
}

.service-card h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-weight: 700;
}

.service-card p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.service-card ul {
    list-style: none;
}

.service-card li {
    padding: 0.6rem 0;
    color: var(--text-dark);
    position: relative;
    padding-left: 25px;
    font-weight: 500;
}

.service-card li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    font-weight: bold;
    font-size: 1.1rem;
}

/* ====================================
   INDUSTRIES SECTION
   ==================================== */
.industries {
    padding: 80px 20px;
    background: white;
}

.industries-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.industry-card {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    cursor: pointer;
    border: 1px solid var(--border-gray);
}

.industry-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    border-color: var(--secondary-color);
}

.industry-image {
    height: 200px;
    background: var(--gradient-primary);
    position: relative;
    overflow: hidden;
}

.industry-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 37, 64, 0.4);
    transition: var(--transition);
}

.industry-card:hover .industry-image::after {
    background: rgba(8, 145, 178, 0.3);
}

.industry-image.automotive {
    background: linear-gradient(135deg, #0A2540 0%, #1E3A5F 100%);
}

.industry-image.food {
    background: linear-gradient(135deg, #0891B2 0%, #14B8A6 100%);
}

.industry-image.consumer {
    background: linear-gradient(135deg, #2563EB 0%, #3B82F6 100%);
}

.industry-image.pharma {
    background: linear-gradient(135deg, #1E3A5F 0%, #0891B2 100%);
}

.industry-image.mining {
    background: linear-gradient(135deg, #374151 0%, #4B5563 100%);
}

.industry-content {
    padding: 1.5rem;
}

.industry-content h3 {
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.industry-content p {
    color: var(--text-light);
    margin-bottom: 1rem;
    font-size: 0.95rem;
    line-height: 1.6;
}

.industry-stats {
    display: flex;
    gap: 0.8rem;
    flex-wrap: wrap;
}

.industry-stats span {
    padding: 6px 14px;
    background: var(--bg-light);
    color: var(--secondary-color);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 700;
    border: 1px solid var(--secondary-color);
}

.success-cases {
    margin-top: 4rem;
    padding: 3rem;
    background: var(--bg-light);
    border-radius: 20px;
    border: 2px solid var(--border-gray);
}

.success-cases h3 {
    text-align: center;
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 2rem;
    font-weight: 800;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.case {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--border-gray);
}

.case:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
    border-color: var(--secondary-color);
}

.case-number {
    display: inline-block;
    width: 50px;
    height: 50px;
    line-height: 50px;
    text-align: center;
    background: var(--gradient-secondary);
    color: white;
    border-radius: 50%;
    font-weight: 800;
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.case h4 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-weight: 700;
    font-size: 1.1rem;
}

.case p {
    color: var(--text-light);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* ====================================
   ABOUT SECTION
   ==================================== */
.about {
    padding: 80px 20px;
    background: var(--bg-light);
}

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

.about-main h3 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-weight: 800;
}

.about-main > p {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

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

.value {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-gray);
    transition: var(--transition);
}

.value:hover {
    border-color: var(--secondary-color);
    transform: translateY(-3px);
}

.value h4 {
    color: var(--secondary-color);
    font-size: 1.3rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.value p {
    color: var(--text-light);
    line-height: 1.7;
}

.values-list h4 {
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-weight: 700;
}

.value-items {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
}

.value-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.value-icon {
    color: var(--secondary-color);
    font-weight: bold;
    font-size: 1.2rem;
}

.coverage-map {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    margin-bottom: 2rem;
    border: 1px solid var(--border-gray);
}

.coverage-map h4 {
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-weight: 700;
}

.map-container {
    background: var(--bg-light);
    height: 250px;
    border-radius: 10px;
    position: relative;
    margin-bottom: 1rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    border: 2px dashed var(--border-gray);
}

.country-marker {
    padding: 10px 18px;
    background: white;
    border-radius: 25px;
    box-shadow: var(--shadow-sm);
    font-weight: 700;
    color: var(--primary-color);
    border: 2px solid var(--secondary-color);
}

.coverage-list ul {
    list-style: none;
}

.coverage-list li {
    padding: 0.7rem 0;
    color: var(--text-light);
    border-bottom: 1px solid var(--border-gray);
    font-weight: 500;
}

.coverage-list li:last-child {
    border-bottom: none;
}

.certifications {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-gray);
}

.certifications h4 {
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-weight: 700;
}

.cert-badges {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.cert {
    padding: 12px;
    background: var(--gradient-accent);
    color: white;
    text-align: center;
    border-radius: 10px;
    font-weight: 700;
    font-size: 0.9rem;
    letter-spacing: 0.5px;
    box-shadow: var(--shadow-sm);
}

/* ====================================
   CONTACT SECTION
   ==================================== */
.contact {
    padding: 80px 20px;
    background: white;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 3rem;
    margin-top: 3rem;
}

.contact-info h3 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 2rem;
    font-weight: 800;
}

.info-item {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    padding: 1rem;
    background: var(--bg-light);
    border-radius: 10px;
    border-left: 4px solid var(--secondary-color);
}

.info-icon {
    font-size: 1.5rem;
    color: var(--secondary-color);
}

.info-item h4 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.info-item p {
    color: var(--text-light);
    line-height: 1.6;
    font-weight: 500;
}

.quick-quote {
    background: linear-gradient(135deg, #EFF6FF 0%, #DBEAFE 100%);
    padding: 2rem;
    border-radius: 12px;
    margin-top: 2rem;
    border: 2px solid var(--secondary-color);
}

.quick-quote h4 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-weight: 700;
    font-size: 1.2rem;
}

.quick-quote p {
    color: var(--text-light);
    margin-bottom: 1rem;
    font-weight: 600;
}

.quote-features {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.quote-features span {
    color: var(--secondary-color);
    font-weight: 700;
}

/* Contact Form */
.contact-form {
    background: var(--bg-light);
    padding: 2.5rem;
    border-radius: 16px;
    border: 1px solid var(--border-gray);
}

.contact-form h3 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 2rem;
    font-weight: 800;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.form-group {
    position: relative;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid var(--border-gray);
    border-radius: 10px;
    background: white;
    font-size: 1rem;
    transition: var(--transition);
    font-family: inherit;
    color: var(--text-dark);
    font-weight: 500;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(8, 145, 178, 0.1);
}

.form-group label {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-light);
    transition: var(--transition);
    pointer-events: none;
    background: white;
    padding: 0 5px;
    font-weight: 500;
}

.form-group textarea ~ label {
    top: 20px;
}

.form-group input:focus ~ label,
.form-group input:not(:placeholder-shown) ~ label,
.form-group select:focus ~ label,
.form-group select:valid ~ label,
.form-group textarea:focus ~ label,
.form-group textarea:not(:placeholder-shown) ~ label {
    top: -10px;
    font-size: 0.85rem;
    color: var(--secondary-color);
    font-weight: 600;
}

.form-checkbox {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 2rem;
}

.form-checkbox input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: var(--secondary-color);
}

.form-checkbox label {
    color: var(--text-dark);
    cursor: pointer;
    font-weight: 500;
}

.submit-button {
    width: 100%;
    padding: 16px;
    background: var(--gradient-accent);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    letter-spacing: 0.5px;
    box-shadow: var(--shadow-md);
}

.submit-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(8, 145, 178, 0.3);
}

.submit-button:active {
    transform: translateY(0);
}

.button-icon {
    transition: var(--transition);
    font-size: 1.2rem;
}

.submit-button:hover .button-icon {
    transform: translateX(5px);
}

.form-message {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 10px;
    text-align: center;
    display: none;
    font-weight: 600;
}

.form-message.success {
    background: rgba(20, 184, 166, 0.1);
    color: var(--success-color);
    border: 2px solid var(--success-color);
    display: block;
}

.form-message.error {
    background: rgba(10, 37, 64, 0.1);
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    display: block;
}

/* ====================================
   FOOTER
   ==================================== */
.footer {
    background: var(--dark-bg);
    color: white;
    padding: 50px 20px 20px;
}

.footer-logo {
    height: 40px;
    width: auto;
    margin-bottom: 1rem;
}

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

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
    color: var(--accent-bright);
    font-weight: 700;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
    margin-bottom: 1rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: 0.7rem;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
    font-weight: 500;
}

.footer-section a:hover {
    color: var(--accent-bright);
    padding-left: 5px;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transition: var(--transition);
    font-weight: 700;
    border: 2px solid transparent;
}

.social-links a:hover {
    background: var(--gradient-secondary);
    transform: translateY(-3px);
    border-color: var(--accent-bright);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
}

.footer-links {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    transition: var(--transition);
    font-weight: 500;
}

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

.footer-links span {
    color: rgba(255, 255, 255, 0.3);
}

/* ====================================
   BACK TO TOP BUTTON
   ==================================== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 55px;
    height: 55px;
    background: var(--gradient-secondary);
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
    opacity: 0;
    visibility: hidden;
    z-index: 999;
    font-weight: bold;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 28px rgba(8, 145, 178, 0.4);
}

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

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

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

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

/* ====================================
   RESPONSIVE DESIGN
   ==================================== */
@media (max-width: 1024px) {
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        flex-direction: column;
        background: white;
        width: 100%;
        padding: 2rem;
        box-shadow: var(--shadow-lg);
        transition: var(--transition);
        border-top: 3px solid var(--secondary-color);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-stats {
        grid-template-columns: 1fr;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .industries-grid {
        grid-template-columns: 1fr;
    }
    
    .values-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-features {
        flex-direction: column;
    }
    
    .feature-badge {
        width: 100%;
        text-align: center;
    }
    
    .cases-grid {
        grid-template-columns: 1fr;
    }
    
    .cert-badges {
        grid-template-columns: 1fr;
    }
}

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

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

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

.hidden {
    display: none;
}

.visible {
    display: block;
}