/* ========================================
   CSS Variables & Reset
   ======================================== */

:root {
    /* Primary Colors */
    --color-primary: #3b82f6;
    --color-primary-dark: #2563eb;
    --color-primary-light: #60a5fa;

    /* Accent Colors */
    --color-accent: #8b5cf6;
    --color-accent-light: #a78bfa;
    --color-healthcare: #ec4899;
    --color-engineering: #06b6d4;

    /* Neutral Colors */
    --color-dark: #0f172a;
    --color-dark-light: #1e293b;
    --color-gray: #64748b;
    --color-gray-light: #cbd5e1;
    --color-white: #ffffff;
    --color-off-white: #f8fafc;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
    --gradient-accent: linear-gradient(135deg, #8b5cf6 0%, #ec4899 100%);
    --gradient-healthcare: linear-gradient(135deg, #ec4899 0%, #f43f5e 100%);
    --gradient-engineering: linear-gradient(135deg, #06b6d4 0%, #3b82f6 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: 'Space Grotesk', sans-serif;

    /* Animations */
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: all 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

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

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

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

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

/* ========================================
   Navigation
   ======================================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(59, 130, 246, 0.1);
    transition: var(--transition-smooth);
}

.navbar.scrolled {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
}

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

.logo-image {
    height: 50px;
    width: auto;
    object-fit: contain;
}

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

.logo-text {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-tagline {
    font-size: 0.75rem;
    color: var(--color-gray);
    font-weight: 500;
}

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

.nav-link {
    color: var(--color-dark);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    transition: var(--transition-smooth);
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s ease;
}

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

.nav-link.contact-btn {
    background: var(--gradient-primary);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
}

.nav-link.contact-btn::after {
    display: none;
}

.nav-link.contact-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(59, 130, 246, 0.3);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--color-dark);
    border-radius: 2px;
    transition: var(--transition-smooth);
}

/* ========================================
   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;
    z-index: -1;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.3;
    animation: float 20s ease-in-out infinite;
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: var(--gradient-primary);
    top: -200px;
    right: -200px;
    animation-delay: 0s;
}

.orb-2 {
    width: 500px;
    height: 500px;
    background: var(--gradient-accent);
    bottom: -150px;
    left: -150px;
    animation-delay: 5s;
}

.orb-3 {
    width: 400px;
    height: 400px;
    background: var(--color-engineering);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: 10s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -50px) scale(1.1); }
    66% { transform: translate(-20px, 30px) scale(0.9); }
}

.grid-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        linear-gradient(rgba(59, 130, 246, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(59, 130, 246, 0.05) 1px, transparent 1px);
    background-size: 50px 50px;
}

.neural-network {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    opacity: 0.6;
}

.hero-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    border: 1px solid rgba(59, 130, 246, 0.2);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-primary);
    margin-bottom: var(--spacing-lg);
    animation: fadeInDown 0.8s ease;
}

.badge-icon {
    font-size: 1.2rem;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
    animation: fadeInUp 0.8s ease 0.2s both;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--color-gray);
    max-width: 700px;
    margin: 0 auto var(--spacing-xl);
    animation: fadeInUp 0.8s ease 0.4s both;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-2xl);
    animation: fadeInUp 0.8s ease 0.6s both;
}

.btn {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition-smooth);
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 10px 30px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(59, 130, 246, 0.4);
}

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

.btn-secondary:hover {
    background: var(--color-primary);
    color: white;
    transform: translateY(-3px);
}

.btn-full {
    width: 100%;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-lg);
    max-width: 600px;
    margin: 0 auto;
    animation: fadeInUp 0.8s ease 0.8s both;
}

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

.stat-value {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
}

.stat-label {
    color: var(--color-gray);
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-gray);
    font-size: 0.85rem;
    animation: fadeIn 1s ease 1s both;
}

.scroll-arrow {
    width: 24px;
    height: 24px;
    border-left: 2px solid var(--color-primary);
    border-bottom: 2px solid var(--color-primary);
    transform: rotate(-45deg);
    animation: bounce 2s ease infinite;
}

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

/* ========================================
   Section Styles
   ======================================== */

section {
    padding: var(--spacing-3xl) 0;
}

.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-3xl);
}

.section-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: rgba(59, 130, 246, 0.1);
    color: var(--color-primary);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-md);
}

.healthcare-badge {
    background: rgba(236, 72, 153, 0.1);
    color: var(--color-healthcare);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.section-subtitle {
    font-size: 1.15rem;
    color: var(--color-gray);
    line-height: 1.8;
}

/* ========================================
   Technology Section
   ======================================== */

.technology-section {
    background: linear-gradient(180deg, var(--color-off-white) 0%, white 100%);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-3xl);
}

.tech-card {
    background: white;
    padding: var(--spacing-xl);
    border-radius: 20px;
    border: 1px solid rgba(59, 130, 246, 0.1);
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

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

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

.tech-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(59, 130, 246, 0.15);
}

.tech-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    color: white;
}

.tech-icon svg {
    width: 30px;
    height: 30px;
}

.tech-card h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-dark);
}

.tech-card p {
    color: var(--color-gray);
    line-height: 1.7;
}

.tech-highlight {
    background: white;
    border-radius: 30px;
    padding: var(--spacing-2xl);
    border: 1px solid rgba(59, 130, 246, 0.1);
    box-shadow: 0 20px 60px rgba(59, 130, 246, 0.1);
}

.highlight-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.highlight-text h3 {
    font-family: var(--font-display);
    font-size: 1.75rem;
    margin-bottom: var(--spacing-md);
}

.highlight-text p {
    color: var(--color-gray);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.highlight-text strong {
    color: var(--color-primary);
    font-weight: 600;
}

.accuracy-comparison {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.comparison-item {
    background: var(--color-off-white);
    padding: var(--spacing-lg);
    border-radius: 15px;
}

.comparison-label {
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-dark);
}

.accuracy-bar {
    height: 40px;
    background: rgba(100, 116, 139, 0.1);
    border-radius: 10px;
    overflow: hidden;
    position: relative;
    margin-bottom: var(--spacing-sm);
}

.accuracy-fill {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: white;
    background: var(--color-gray);
    transition: width 1s ease;
}

.guaranteed-fill {
    background: var(--gradient-primary);
    animation: fillBar 1.5s ease forwards;
}

@keyframes fillBar {
    from { width: 0; }
    to { width: 100%; }
}

.comparison-note {
    font-size: 0.85rem;
    color: var(--color-gray);
}

/* ========================================
   Vertical Sections (Engineering & Healthcare)
   ======================================== */

.vertical-section {
    padding: var(--spacing-3xl) 0;
}

.engineering-section {
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.03) 0%, rgba(59, 130, 246, 0.03) 100%);
}

.healthcare-section {
    background: linear-gradient(135deg, rgba(236, 72, 153, 0.03) 0%, rgba(244, 63, 94, 0.03) 100%);
}

.vertical-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.vertical-content.reverse {
    direction: rtl;
}

.vertical-content.reverse > * {
    direction: ltr;
}

.vertical-description {
    font-size: 1.1rem;
    color: var(--color-gray);
    line-height: 1.8;
    margin-bottom: var(--spacing-xl);
}

.use-cases {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.use-case-item {
    display: flex;
    gap: var(--spacing-md);
    background: white;
    padding: var(--spacing-lg);
    border-radius: 15px;
    border: 1px solid rgba(59, 130, 246, 0.1);
    transition: var(--transition-smooth);
}

.use-case-item:hover {
    transform: translateX(10px);
    box-shadow: 0 10px 30px rgba(59, 130, 246, 0.1);
}

.use-case-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.use-case-content h4 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--color-dark);
}

.use-case-content p {
    color: var(--color-gray);
    line-height: 1.6;
}

.visual-card {
    position: relative;
    background: white;
    border-radius: 25px;
    padding: var(--spacing-xl);
    box-shadow: 0 20px 60px rgba(59, 130, 246, 0.15);
    border: 1px solid rgba(59, 130, 246, 0.1);
    overflow: hidden;
}

.card-glow {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: conic-gradient(
        from 0deg at 50% 50%,
        rgba(59, 130, 246, 0.1),
        transparent,
        rgba(139, 92, 246, 0.1),
        transparent,
        rgba(59, 130, 246, 0.1)
    );
    animation: rotate 10s linear infinite;
    z-index: -1;
}

.healthcare-glow {
    background: conic-gradient(
        from 0deg at 50% 50%,
        rgba(236, 72, 153, 0.1),
        transparent,
        rgba(244, 63, 94, 0.1),
        transparent,
        rgba(236, 72, 153, 0.1)
    );
}

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

.visual-content {
    position: relative;
    z-index: 1;
}

.visual-header {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.metric-display {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.metric {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    background: var(--color-off-white);
    border-radius: 10px;
}

.metric-label {
    color: var(--color-gray);
    font-weight: 500;
}

.metric-value {
    font-family: var(--font-display);
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.healthcare-card .metric-value {
    background: var(--gradient-healthcare);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.visual-footer {
    text-align: center;
    color: var(--color-gray);
    font-size: 0.9rem;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(100, 116, 139, 0.1);
}

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

/* ========================================
   About Section
   ======================================== */

.about-section {
    background: var(--color-off-white);
}

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

.about-text p {
    font-size: 1.1rem;
    color: var(--color-gray);
    line-height: 1.8;
    margin-bottom: var(--spacing-lg);
}

.about-highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.highlight-item {
    background: white;
    padding: var(--spacing-lg);
    border-radius: 15px;
    border: 1px solid rgba(59, 130, 246, 0.1);
}

.highlight-item h4 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--color-dark);
}

.highlight-item p {
    font-size: 0.95rem;
    margin: 0;
}

.location-card {
    background: white;
    padding: var(--spacing-xl);
    border-radius: 20px;
    border: 1px solid rgba(59, 130, 246, 0.1);
    box-shadow: 0 10px 30px rgba(59, 130, 246, 0.1);
    position: sticky;
    top: 100px;
}

.location-card h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-lg);
}

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

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

.location-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.location-item a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 500;
}

.location-item a:hover {
    text-decoration: underline;
}

/* ========================================
   Contact Section
   ======================================== */

.contact-section {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.05) 0%, rgba(139, 92, 246, 0.05) 100%);
}

.contact-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--spacing-3xl);
    align-items: start;
}

.contact-form {
    background: white;
    padding: var(--spacing-2xl);
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(59, 130, 246, 0.1);
}

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

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid rgba(59, 130, 246, 0.1);
    border-radius: 10px;
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: var(--transition-smooth);
}

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

.form-group textarea {
    resize: vertical;
}

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

.info-card {
    background: white;
    padding: var(--spacing-xl);
    border-radius: 20px;
    border: 1px solid rgba(59, 130, 246, 0.1);
}

.info-card h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
}

.info-card p {
    color: var(--color-gray);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

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

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

.info-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.info-item a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 500;
}

.info-item a:hover {
    text-decoration: underline;
}

.expectations-list {
    list-style: none;
    padding: 0;
}

.expectations-list li {
    padding-left: 1.5rem;
    margin-bottom: 0.75rem;
    position: relative;
    color: var(--color-gray);
}

.expectations-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: bold;
}

.acquisition-notice {
    margin-top: var(--spacing-3xl);
    padding: var(--spacing-xl);
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
    border-radius: 15px;
    border: 2px solid rgba(59, 130, 246, 0.2);
    text-align: center;
}

.acquisition-notice p {
    color: var(--color-dark);
    line-height: 1.8;
    font-size: 1.05rem;
    margin: 0;
}

.acquisition-notice strong {
    color: var(--color-primary);
    font-weight: 600;
}

/* ========================================
   Footer
   ======================================== */

.footer {
    background: var(--color-dark);
    color: var(--color-gray-light);
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

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

.footer-brand .logo-text {
    color: white;
    background: none;
    -webkit-text-fill-color: white;
}

.footer-brand .logo-tagline {
    color: var(--color-gray-light);
}

.footer-description {
    margin-top: var(--spacing-md);
    line-height: 1.7;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
}

.footer-column h4 {
    color: white;
    font-family: var(--font-display);
    font-size: 1.1rem;
    margin-bottom: var(--spacing-md);
}

.footer-column a {
    display: block;
    color: var(--color-gray-light);
    text-decoration: none;
    margin-bottom: 0.5rem;
    transition: var(--transition-smooth);
}

.footer-column a:hover {
    color: white;
    padding-left: 5px;
}

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

.footer-bottom p {
    margin-bottom: 0.5rem;
}

.footer-patent {
    font-size: 0.9rem;
    color: var(--color-gray);
}

/* ========================================
   Animations
   ======================================== */

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

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

/* ========================================
   Responsive Design
   ======================================== */

@media (max-width: 968px) {
    .nav-links {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .tech-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }

    .highlight-content {
        grid-template-columns: 1fr;
    }

    .vertical-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }

    .vertical-content.reverse {
        direction: ltr;
    }

    .about-content {
        grid-template-columns: 1fr;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .location-card {
        position: static;
    }
}

@media (max-width: 640px) {
    :root {
        --spacing-3xl: 3rem;
        --spacing-2xl: 2rem;
    }

    .hero-stats {
        grid-template-columns: 1fr;
    }

    .hero-cta {
        flex-direction: column;
        width: 100%;
    }

    .hero-cta .btn {
        width: 100%;
    }

    .tech-grid {
        grid-template-columns: 1fr;
    }

    .about-highlights {
        grid-template-columns: 1fr;
    }

    .footer-links {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   Utility Classes
   ======================================== */

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

.mt-lg {
    margin-top: var(--spacing-lg);
}

.mb-lg {
    margin-bottom: var(--spacing-lg);
}

.hidden {
    display: none;
}

/* Smooth transitions for all interactive elements */
a, button, input, select, textarea {
    transition: var(--transition-smooth);
}

/* Print styles */
@media print {
    .navbar,
    .hero-background,
    .scroll-indicator,
    .contact-form,
    .footer {
        display: none;
    }

    body {
        background: white;
        color: black;
    }
}