/* ============================================
   CRISTIAN AMARAL - CONSULTORIA TECNOLÓGICA
   Design System: Premium Tech Consultancy
   ============================================ */

/* === CSS VARIABLES === */
:root {
    /* Color Palette - Light Mode */
    --primary-color: #0052CC;
    --primary-hover: #0747A6;
    --secondary-color: #172B4D;
    --accent-color: #00B8D9;
    --accent-hover: #00A3BF;
    
    /* Neutral Colors - Light */
    --background: #FFFFFF;
    --background-secondary: #F4F5F7;
    --background-tertiary: #EBECF0;
    --surface: #FFFFFF;
    --surface-hover: #F4F5F7;
    
    /* Text Colors - Light */
    --text-primary: #172B4D;
    --text-secondary: #5E6C84;
    --text-tertiary: #8993A4;
    --text-inverse: #FFFFFF;
    
    /* Border & Divider */
    --border-color: #DFE1E6;
    --divider-color: #EBECF0;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.15);
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #0052CC 0%, #0747A6 100%);
    --gradient-accent: linear-gradient(135deg, #00B8D9 0%, #0052CC 100%);
    --gradient-hero: linear-gradient(180deg, rgba(244, 245, 247, 0) 0%, #F4F5F7 100%);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Playfair Display', Georgia, serif;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 32px;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
    
    /* Z-index */
    --z-header: 1000;
    --z-dropdown: 2000;
    --z-modal: 3000;
}

/* Dark Mode Variables */
[data-theme="dark"] {
    /* Color Palette - Dark Mode */
    --primary-color: #4C9AFF;
    --primary-hover: #2684FF;
    --secondary-color: #DEEBFF;
    --accent-color: #00C7E6;
    --accent-hover: #00B8D9;
    
    /* Neutral Colors - Dark */
    --background: #0D1117;
    --background-secondary: #161B22;
    --background-tertiary: #21262D;
    --surface: #161B22;
    --surface-hover: #21262D;
    
    /* Text Colors - Dark */
    --text-primary: #E6EDF3;
    --text-secondary: #8B949E;
    --text-tertiary: #6E7681;
    --text-inverse: #0D1117;
    
    /* Border & Divider */
    --border-color: #30363D;
    --divider-color: #21262D;
    
    /* Shadows - Enhanced for dark */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.6);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.7);
    
    /* Gradients - Dark */
    --gradient-primary: linear-gradient(135deg, #2684FF 0%, #0052CC 100%);
    --gradient-accent: linear-gradient(135deg, #00C7E6 0%, #0052CC 100%);
    --gradient-hero: linear-gradient(180deg, rgba(22, 27, 34, 0) 0%, #161B22 100%);
}

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

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

body {
    font-family: var(--font-primary);
    background-color: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background-color var(--transition-base), color var(--transition-base);
    overflow-x: hidden;
}

/* === TYPOGRAPHY === */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-primary);
    transition: color var(--transition-base);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }

p {
    color: var(--text-secondary);
    transition: color var(--transition-base);
}

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

/* === UTILITIES === */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.section-label {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.section-title {
    font-family: var(--font-display);
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.section-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
}

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

.section-header.centered {
    text-align: center;
}

/* === BUTTONS === */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    text-align: center;
    white-space: nowrap;
}

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

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

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

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

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

/* === HEADER / NAVIGATION === */
.header {
    position: sticky;
    top: 0;
    z-index: var(--z-header);
    background: var(--surface);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    transition: all var(--transition-base);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-lg);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
}

.logo-icon {
    width: 40px;
    height: 40px;
}

.logo-path {
    fill: var(--primary-color);
    transition: fill var(--transition-base);
}

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

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

.logo-name {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
}

.logo-tagline {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    line-height: 1;
    margin-top: 2px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    margin: 0;
}

.nav-link {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--text-secondary);
    padding: var(--spacing-xs) 0;
    position: relative;
}

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

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

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

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

.theme-toggle {
    width: 42px;
    height: 42px;
    border-radius: var(--radius-sm);
    background: var(--background-secondary);
    border: 1px solid var(--border-color);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    transition: all var(--transition-base);
}

.theme-toggle:hover {
    background: var(--surface-hover);
    border-color: var(--primary-color);
}

.sun-icon,
.moon-icon {
    position: absolute;
    font-size: 1.125rem;
    transition: all var(--transition-base);
}

.sun-icon {
    color: #FFA500;
    opacity: 1;
    transform: rotate(0deg);
}

.moon-icon {
    color: var(--primary-color);
    opacity: 0;
    transform: rotate(180deg);
}

[data-theme="dark"] .sun-icon {
    opacity: 0;
    transform: rotate(180deg);
}

[data-theme="dark"] .moon-icon {
    opacity: 1;
    transform: rotate(0deg);
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-base);
}

/* === HERO SECTION === */
.hero {
    min-height: 90vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: var(--spacing-3xl);
    padding: var(--spacing-3xl) var(--spacing-lg);
    max-width: 1400px;
    margin: 0 auto;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-hero);
    z-index: -1;
    pointer-events: none;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.625rem 1.25rem;
    background: var(--background-secondary);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.hero-badge i {
    color: var(--accent-color);
}

.hero-title {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.title-primary {
    font-family: var(--font-display);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.1;
}

.title-secondary {
    color: var(--text-primary);
    font-weight: 700;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-tertiary);
    margin-top: var(--spacing-xs);
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--border-color);
}

.hero-visual {
    position: relative;
    height: 500px;
}

.visual-card {
    position: absolute;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg);
    background: var(--surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-slow);
}

.visual-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
}

.visual-card span {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.card-1 {
    top: 50px;
    left: 50px;
    width: 180px;
    animation: float 6s ease-in-out infinite;
}

.card-2 {
    top: 200px;
    right: 80px;
    width: 180px;
    animation: float 6s ease-in-out infinite 2s;
}

.card-3 {
    bottom: 80px;
    left: 120px;
    width: 180px;
    animation: float 6s ease-in-out infinite 4s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

.visual-card:hover {
    transform: translateY(-10px) scale(1.05);
    box-shadow: var(--shadow-xl);
}

.visual-background {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 400px;
    height: 400px;
    background: var(--gradient-accent);
    opacity: 0.05;
    border-radius: 50%;
    filter: blur(80px);
}

/* === ABOUT SECTION === */
.about {
    padding: var(--spacing-3xl) var(--spacing-lg);
    background: var(--background-secondary);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    margin-top: var(--spacing-2xl);
}

.timeline {
    position: relative;
    padding-left: var(--spacing-xl);
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border-color);
}

.timeline-item {
    position: relative;
    margin-bottom: var(--spacing-2xl);
}

.timeline-item::before {
    content: attr(data-year);
    /* position: absolute; */
    left: -180px;
    top: 0;
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
    opacity: 0.2;
}

.timeline-marker {
    position: absolute;
    left: calc(-1 * var(--spacing-xl) - 8px);
    top: 6px;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--primary-color);
    border: 3px solid var(--background-secondary);
    box-shadow: 0 0 0 3px var(--border-color);
}

.timeline-content h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.timeline-content p {
    color: var(--text-secondary);
    line-height: 1.7;
}

.about-description .lead-text {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.about-description p {
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.company-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: var(--surface);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

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

.info-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    width: 30px;
    text-align: center;
}

.info-item div {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.info-item strong {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
}

.info-item span {
    font-size: 0.9375rem;
    color: var(--text-secondary);
}

/* === SERVICES SECTION === */
.services {
    padding: var(--spacing-3xl) var(--spacing-lg);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-2xl);
}

.service-card {
    position: relative;
    padding: var(--spacing-xl);
    background: var(--surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

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

.service-card.featured {
    background: var(--gradient-primary);
    border: none;
    color: var(--text-inverse);
}

.service-card.featured * {
    color: var(--text-inverse);
}

.featured-badge {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    padding: 0.375rem 0.875rem;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-inverse);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.service-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    background: var(--background-secondary);
    margin-bottom: var(--spacing-lg);
}

.service-card.featured .service-icon {
    background: rgba(255, 255, 255, 0.15);
}

.service-icon i {
    font-size: 1.75rem;
    color: var(--primary-color);
}

.service-card.featured .service-icon i {
    color: var(--text-inverse);
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
}

.service-card p {
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

.service-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.service-features li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.9375rem;
    color: var(--text-secondary);
}

.service-card.featured .service-features li {
    color: rgba(255, 255, 255, 0.9);
}

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

.service-card.featured .service-features i {
    color: rgba(255, 255, 255, 0.8);
}

/* === EXPERTISE SECTION === */
.expertise {
    padding: var(--spacing-3xl) var(--spacing-lg);
    background: var(--background-secondary);
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-2xl);
}

.expertise-card {
    padding: var(--spacing-xl);
    background: var(--surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

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

.expertise-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    background: var(--background-secondary);
    margin-bottom: var(--spacing-md);
}

.expertise-icon i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.expertise-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

.expertise-card p {
    font-size: 0.9375rem;
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.expertise-level {
    margin-top: var(--spacing-md);
}

.expertise-level > span {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.level-bar {
    height: 6px;
    background: var(--background-secondary);
    border-radius: 3px;
    overflow: hidden;
}

.level-fill {
    height: 100%;
    background: var(--gradient-accent);
    border-radius: 3px;
    transition: width 1s ease;
}

.differentials {
    margin-top: var(--spacing-3xl);
    padding-top: var(--spacing-3xl);
    border-top: 2px solid var(--border-color);
}

.differentials-title {
    text-align: center;
    font-family: var(--font-display);
    font-size: 2rem;
    margin-bottom: var(--spacing-2xl);
}

.differentials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.differential-item {
    text-align: center;
    padding: var(--spacing-lg);
}

.differential-icon {
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--gradient-accent);
    margin: 0 auto var(--spacing-md);
}

.differential-icon i {
    font-size: 1.75rem;
    color: var(--text-inverse);
}

.differential-item h4 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xs);
}

.differential-item p {
    font-size: 0.9375rem;
    line-height: 1.6;
}

/* === CONTACT SECTION === */
.contact {
    padding: var(--spacing-3xl) var(--spacing-lg);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    margin-top: var(--spacing-2xl);
}

.contact-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.7;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

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

.contact-icon {
    width: 50px;
    height: 50px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    background: var(--background-secondary);
}

.contact-icon i {
    font-size: 1.25rem;
    color: var(--primary-color);
}

.contact-text h4 {
    font-size: 1rem;
    margin-bottom: 4px;
    color: var(--text-primary);
}

.contact-text p {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

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

.social-link {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    background: var(--background-secondary);
    border: 1px solid var(--border-color);
    transition: all var(--transition-base);
}

.social-link:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    transform: translateY(-3px);
}

.social-link i {
    font-size: 1.125rem;
    color: var(--text-primary);
}

.social-link:hover i {
    color: var(--text-inverse);
}

.contact-form-wrapper {
    background: var(--surface);
    padding: var(--spacing-xl);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

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

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

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

.form-group label {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.875rem 1rem;
    font-size: 0.9375rem;
    font-family: var(--font-primary);
    color: var(--text-primary);
    background: var(--background);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
}

.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(0, 82, 204, 0.1);
}

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

/* === FOOTER === */
.footer {
    background: var(--background-secondary);
    padding: var(--spacing-2xl) var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 3fr;
    gap: var(--spacing-3xl);
    margin-bottom: var(--spacing-2xl);
    padding-bottom: var(--spacing-2xl);
    border-bottom: 1px solid var(--border-color);
}

.footer-brand {
    display: flex;
    align-items: start;
    gap: var(--spacing-md);
}

.footer-logo {
    width: 50px;
    height: 50px;
    flex-shrink: 0;
}

.footer-brand h3 {
    font-size: 1.25rem;
    margin-bottom: 4px;
}

.footer-brand p {
    font-size: 0.875rem;
    color: var(--text-tertiary);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.footer-column h4 {
    font-size: 0.9375rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.footer-column ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-column li {
    font-size: 0.9375rem;
    color: var(--text-secondary);
}

.footer-column a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.footer-bottom p {
    font-size: 0.875rem;
    color: var(--text-tertiary);
}

.footer-legal {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
    font-size: 0.875rem;
    color: var(--text-tertiary);
}

.footer-legal a:hover {
    color: var(--primary-color);
}

/* === RESPONSIVE === */
@media (max-width: 1024px) {
    .hero {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
        padding: var(--spacing-2xl) var(--spacing-lg);
    }
    
    .hero-visual {
        height: 400px;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--surface);
        border-bottom: 1px solid var(--border-color);
        padding: var(--spacing-md);
        gap: var(--spacing-sm);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-base);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .mobile-toggle {
        display: flex;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .hero-stats {
        flex-wrap: wrap;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .expertise-grid {
        grid-template-columns: 1fr;
    }
    
    .differentials-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-form {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}