/* ========================================
   GONZÁLEZ GOODIN - CONSULTORES GERENCIALES
   Professional Landing Page Styles
   ======================================== */

/* ========================================
   ROOT VARIABLES & RESET
   ======================================== */

:root {
    /* Colors - Professional palette */
    --primary-color: #1a365d;
    --primary-dark: #0f2744;
    --primary-light: #2d4a73;
    --secondary-color: #d4af37;
    --secondary-dark: #b8941f;
    --accent-color: #0066cc;
    
    /* Neutrals */
    --text-dark: #1a202c;
    --text-medium: #4a5568;
    --text-light: #718096;
    --bg-white: #ffffff;
    --bg-light: #f7fafc;
    --bg-lighter: #edf2f7;
    --border-color: #e2e8f0;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #1a365d 0%, #2d4a73 100%);
    --gradient-secondary: linear-gradient(135deg, #d4af37 0%, #b8941f 100%);
    --gradient-overlay: linear-gradient(135deg, rgba(26, 54, 93, 0.95) 0%, rgba(45, 74, 115, 0.9) 100%);
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Playfair Display', Georgia, serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Effects */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.15);
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s ease;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
    background-color: var(--bg-white);
}

/* ========================================
   TYPOGRAPHY
   ======================================== */

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-dark);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-family: var(--font-display);
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-family: var(--font-display);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
}

p {
    font-size: clamp(1rem, 2vw, 1.125rem);
    color: var(--text-medium);
    line-height: 1.8;
}

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

/* ========================================
   UTILITIES
   ======================================== */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.gradient-text {
    background: var(--gradient-secondary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-tag {
    display: inline-block;
    color: var(--secondary-color);
    font-weight: 600;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: var(--spacing-sm);
}

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

.section-title {
    margin-bottom: var(--spacing-md);
}

.section-description {
    max-width: 700px;
    margin: 0 auto;
    font-size: 1.125rem;
}

/* ========================================
   BUTTONS
   ======================================== */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    font-weight: 600;
    font-size: 1rem;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

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

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

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

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

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

.btn-white:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-full {
    width: 100%;
    justify-content: center;
}

/* ========================================
   NAVIGATION
   ======================================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem var(--spacing-md);
}

.logo h1 {
    font-size: 1.5rem;
    color: var(--primary-color);
    font-family: var(--font-display);
    margin: 0;
}

.logo-subtitle {
    display: block;
    font-size: 0.75rem;
    color: var(--text-medium);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-top: 0.25rem;
}

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

.nav-link {
    color: var(--text-dark);
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    padding: 0.5rem 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--secondary-color);
    transition: width 0.3s ease;
}

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

.nav-link.cta-button {
    background: var(--gradient-primary);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
}

.nav-link.cta-button::after {
    display: none;
}

.nav-link.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

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

/* ========================================
   HERO SECTION
   ======================================== */

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding-top: 80px;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-primary);
    z-index: -1;
}

.hero-background::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(212, 175, 55, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(0, 102, 204, 0.1) 0%, transparent 50%);
    opacity: 0.6;
}

.hero-content {
    position: relative;
    z-index: 1;
    padding: var(--spacing-lg) 0;
}

.hero-text {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
    color: white;
}

.hero-title {
    margin-bottom: var(--spacing-md);
    color: white;
    animation: fadeInUp 0.8s ease;
}

.hero-description {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
    animation: fadeInUp 0.8s ease 0.2s;
    animation-fill-mode: both;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    text-align: left;
}

.stat-item i {
    font-size: 2.5rem;
    color: var(--secondary-color);
}

.stat-item h3 {
    font-size: 1.125rem;
    color: white;
    margin-bottom: 0.5rem;
}

.stat-item p {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.8);
    margin: 0;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease 0.4s;
    animation-fill-mode: both;
}

.hero-scroll {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.hero-scroll a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 2rem;
}

.hero-scroll a:hover {
    color: white;
}

/* ========================================
   SERVICES SECTION
   ======================================== */

.services {
    padding: var(--spacing-xl) 0;
    background: var(--bg-white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-md);
}

.service-card {
    background: white;
    padding: var(--spacing-md);
    border-radius: 16px;
    border: 2px solid var(--border-color);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.service-card.featured-service {
    border: 2px solid var(--secondary-color);
    background: linear-gradient(135deg, #ffffff 0%, #fffef8 100%);
}

.service-card.featured-service::before {
    background: linear-gradient(135deg, #d4af37 0%, #1a365d 100%);
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-secondary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

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

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

.service-icon {
    width: 70px;
    height: 70px;
    background: var(--gradient-primary);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    transition: var(--transition);
}

.service-card:hover .service-icon {
    transform: scale(1.1) rotate(5deg);
}

.service-icon i {
    font-size: 2rem;
    color: white;
}

/* Specialized service icon colors */
.service-icon.food-safety {
    background: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
}

.service-icon.iso {
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
}

.service-icon.compliance {
    background: linear-gradient(135deg, #ef4444 0%, #b91c1c 100%);
}

.service-card h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.service-card p {
    margin-bottom: var(--spacing-md);
    font-size: 1rem;
}

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

.service-features li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0;
    font-size: 0.95rem;
    color: var(--text-medium);
}

.service-features i {
    color: var(--secondary-color);
    font-size: 0.875rem;
}

/* ========================================
   APPROACH SECTION
   ======================================== */

.approach {
    padding: var(--spacing-xl) 0;
    background: var(--bg-light);
}

.approach-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.approach-card {
    background: white;
    padding: var(--spacing-md);
    border-radius: 16px;
    text-align: center;
    position: relative;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 2px solid transparent;
}

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

.approach-number {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 3rem;
    font-weight: 800;
    color: var(--bg-lighter);
    font-family: var(--font-display);
}

.approach-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
    transition: var(--transition);
}

.approach-card:hover .approach-icon {
    transform: scale(1.1);
}

.approach-icon i {
    font-size: 2rem;
    color: white;
}

.approach-card h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.approach-card p {
    font-size: 0.95rem;
}

/* ========================================
   CERTIFICATIONS SECTION
   ======================================== */

.certifications {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    position: relative;
    overflow: hidden;
}

.certifications::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(26, 54, 93, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(212, 175, 55, 0.03) 0%, transparent 50%);
    pointer-events: none;
}

.certifications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    position: relative;
    z-index: 1;
}

.cert-card {
    background: white;
    padding: var(--spacing-md);
    border-radius: 16px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 2px solid transparent;
    position: relative;
}

.cert-card:hover {
    transform: translateY(-12px);
    box-shadow: var(--shadow-xl);
    border-color: var(--secondary-color);
}

.cert-badge {
    width: 90px;
    height: 90px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
    position: relative;
    transition: var(--transition);
}

.cert-card:hover .cert-badge {
    transform: scale(1.15) rotate(5deg);
}

.cert-badge i {
    font-size: 2.5rem;
    color: white;
    z-index: 1;
}

.cert-badge.haccp {
    background: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
    box-shadow: 0 8px 20px rgba(34, 197, 94, 0.3);
}

.cert-badge.fsvp {
    background: linear-gradient(135deg, #3b82f6 0%, #1e40af 100%);
    box-shadow: 0 8px 20px rgba(59, 130, 246, 0.3);
}

.cert-badge.fssc {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    box-shadow: 0 8px 20px rgba(245, 158, 11, 0.3);
}

.cert-badge.iso {
    background: linear-gradient(135deg, #8b5cf6 0%, #6d28d9 100%);
    box-shadow: 0 8px 20px rgba(139, 92, 246, 0.3);
}

.cert-badge.iso22000 {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    box-shadow: 0 8px 20px rgba(16, 185, 129, 0.3);
}

.cert-badge.compliance {
    background: linear-gradient(135deg, #ef4444 0%, #b91c1c 100%);
    box-shadow: 0 8px 20px rgba(239, 68, 68, 0.3);
}

.cert-card h3 {
    font-size: 1.75rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-family: var(--font-display);
}

.cert-full {
    font-size: 0.875rem;
    color: var(--text-light);
    font-style: italic;
    margin-bottom: var(--spacing-md);
    min-height: 2.5rem;
}

.cert-card ul {
    list-style: none;
    text-align: left;
}

.cert-card ul li {
    padding: 0.5rem 0;
    font-size: 0.95rem;
    color: var(--text-medium);
    border-bottom: 1px solid var(--bg-lighter);
    position: relative;
    padding-left: 1.5rem;
}

.cert-card ul li:last-child {
    border-bottom: none;
}

.cert-card ul li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    font-weight: bold;
}

/* ========================================
   SECTORS SECTION
   ======================================== */

.sectors {
    padding: var(--spacing-xl) 0;
    background: white;
}

.sectors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.sector-card {
    background: var(--bg-light);
    padding: var(--spacing-md);
    border-radius: 12px;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
}

.sector-card:hover {
    background: var(--gradient-primary);
    color: white;
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

.sector-card i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
    transition: var(--transition);
}

.sector-card:hover i {
    color: var(--secondary-color);
    transform: scale(1.2);
}

.sector-card h3 {
    font-size: 1.125rem;
    transition: var(--transition);
}

.sector-card:hover h3 {
    color: white;
}

/* ========================================
   ABOUT SECTION
   ======================================== */

.about {
    padding: var(--spacing-xl) 0;
    background: var(--bg-light);
}

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

.about-text {
    padding-right: var(--spacing-md);
}

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

.about-features {
    margin-top: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.about-feature {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background: white;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.about-feature:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-md);
}

.about-feature i {
    font-size: 2rem;
    color: var(--secondary-color);
    margin-top: 0.25rem;
}

.about-feature h4 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 1.125rem;
}

.about-feature p {
    font-size: 0.95rem;
    margin: 0;
}

.about-values {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
}

.value-card {
    background: white;
    padding: var(--spacing-md);
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border-left: 4px solid var(--secondary-color);
}

.value-card:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-lg);
}

.value-card i {
    font-size: 2rem;
    color: var(--secondary-color);
    margin-bottom: var(--spacing-sm);
}

.value-card h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 1.25rem;
}

.value-card p {
    font-size: 0.95rem;
    margin: 0;
}

/* ========================================
   CTA SECTION
   ======================================== */

.cta-section {
    padding: var(--spacing-xl) 0;
    background: var(--gradient-primary);
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(212, 175, 55, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
}

.cta-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.cta-content h2 {
    color: white;
    margin-bottom: var(--spacing-md);
}

.cta-content p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
}

/* ========================================
   CONTACT SECTION
   ======================================== */

.contact {
    padding: var(--spacing-xl) 0;
    background: white;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-lg);
}

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

.contact-card {
    background: var(--bg-light);
    padding: var(--spacing-md);
    border-radius: 12px;
    transition: var(--transition);
}

.contact-card:hover {
    background: var(--gradient-primary);
    color: white;
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.contact-card i {
    font-size: 2rem;
    color: var(--secondary-color);
    margin-bottom: var(--spacing-sm);
}

.contact-card:hover i {
    color: white;
}

.contact-card h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 1.125rem;
}

.contact-card:hover h3 {
    color: white;
}

.contact-card p {
    font-size: 0.95rem;
    margin: 0.25rem 0;
}

.contact-card:hover p {
    color: rgba(255, 255, 255, 0.9);
}

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

.contact-card:hover a {
    color: white;
    text-decoration: underline;
}

.contact-form {
    background: var(--bg-light);
    padding: var(--spacing-md);
    border-radius: 16px;
}

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

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

.form-group label {
    display: block;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: var(--transition);
    background: white;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(26, 54, 93, 0.1);
}

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

.form-message {
    margin-top: var(--spacing-md);
    padding: 1rem;
    border-radius: 8px;
    display: none;
    text-align: center;
    font-weight: 600;
}

.form-message.success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
    display: block;
}

.form-message.error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
    display: block;
}

/* ========================================
   FOOTER
   ======================================== */

.footer {
    background: var(--primary-dark);
    color: white;
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-brand h2 {
    font-size: 1.5rem;
    color: white;
    font-family: var(--font-display);
    margin-bottom: 0.5rem;
}

.footer-tagline {
    font-size: 0.875rem;
    color: var(--secondary-color);
    text-transform: uppercase;
    letter-spacing: 2px;
    display: block;
    margin-bottom: var(--spacing-sm);
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
}

.footer-links h3 {
    color: white;
    font-size: 1.125rem;
    margin-bottom: var(--spacing-sm);
}

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

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
}

.footer-links a:hover {
    color: var(--secondary-color);
    padding-left: 4px;
}

.footer-contact p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.875rem;
    margin: 0;
}

/* ========================================
   BACK TO TOP BUTTON
   ======================================== */

.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
}

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

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

/* ========================================
   ANIMATIONS
   ======================================== */

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

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

.fade-in {
    animation: fadeInUp 0.8s ease;
}

.fade-in-delay-1 {
    animation: fadeInUp 0.8s ease 0.2s;
    animation-fill-mode: both;
}

.fade-in-delay-2 {
    animation: fadeInUp 0.8s ease 0.4s;
    animation-fill-mode: both;
}

.fade-in-delay-3 {
    animation: fadeInUp 0.8s ease 0.6s;
    animation-fill-mode: both;
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */

@media (max-width: 1024px) {
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-lg: 3rem;
        --spacing-xl: 4rem;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: white;
        flex-direction: column;
        padding: var(--spacing-md);
        gap: 0;
        box-shadow: var(--shadow-lg);
        transition: left 0.3s ease;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        width: 100%;
        border-bottom: 1px solid var(--border-color);
    }
    
    .nav-link {
        display: block;
        width: 100%;
        padding: 1rem;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(8px, 8px);
    }
    
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }
    
    .hero-stats {
        grid-template-columns: 1fr;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .hero-buttons .btn {
        width: 100%;
        justify-content: center;
    }
    
    .services-grid,
    .approach-grid,
    .sectors-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .back-to-top {
        bottom: 1rem;
        right: 1rem;
        width: 45px;
        height: 45px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .logo h1 {
        font-size: 1.25rem;
    }
    
    .hero {
        min-height: auto;
        padding: 100px 0 60px;
    }
    
    .section-header {
        margin-bottom: var(--spacing-md);
    }
    
    .stat-item {
        flex-direction: column;
        text-align: center;
    }
}