:root {
    /* Color Palette - Dark Theme */
    --color-bg-primary: #0a0a0a;
    --color-bg-secondary: #111111;
    --color-bg-tertiary: #1a1a1a;
    --color-text-primary: #ffffff;
    --color-text-secondary: #b4b4b4;
    --color-text-tertiary: #808080;
    --color-accent-primary: #3b82f6;
    --color-accent-secondary: #8b5cf6;
    --color-accent-gradient: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
    --color-success: #10b981;
    --color-border: #2a2a2a;

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Space Grotesk', var(--font-primary);

    /* Font Sizes */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;
    --text-6xl: 3.75rem;
    --text-7xl: 4.5rem;

    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    --space-32: 8rem;

    /* Layout */
    --container-max: 1200px;
    --container-padding: var(--space-6);
    --border-radius-sm: 0.375rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 0.75rem;
    --border-radius-xl: 1rem;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 30px rgba(59, 130, 246, 0.3);
}

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-primary);
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

h1 {
    font-size: clamp(var(--text-4xl), 8vw, var(--text-7xl));
}

h2 {
    font-size: clamp(var(--text-3xl), 6vw, var(--text-5xl));
}

h3 {
    font-size: clamp(var(--text-2xl), 4vw, var(--text-4xl));
}

p {
    font-size: var(--text-lg);
    color: var(--color-text-secondary);
    line-height: 1.8;
}

a {
    color: var(--color-accent-primary);
    text-decoration: none;
    transition: color var(--transition-base);
}

a:hover {
    color: var(--color-accent-secondary);
}

/* Container */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* Section Spacing */
section {
    padding: var(--space-24) 0;
    position: relative;
}

@media (max-width: 768px) {
    section {
        padding: var(--space-16) 0;
    }
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    transition: background var(--transition-base);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-4) var(--container-padding);
    max-width: var(--container-max);
    margin: 0 auto;
}

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

.nav-menu {
    display: flex;
    gap: var(--space-8);
    list-style: none;
}

.nav-link {
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: color var(--transition-base);
}

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

.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--color-text-primary);
    font-size: var(--text-2xl);
    cursor: pointer;
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        background: var(--color-bg-secondary);
        flex-direction: column;
        padding: var(--space-6);
        gap: var(--space-4);
        transform: translateY(-100%);
        opacity: 0;
        transition: transform var(--transition-base), opacity var(--transition-base);
        border-bottom: 1px solid var(--color-border);
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
    }

    .nav-toggle {
        display: block;
    }
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-4) var(--space-8);
    font-size: var(--text-base);
    font-weight: 600;
    border-radius: var(--border-radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
    border: none;
    text-decoration: none;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 40px rgba(59, 130, 246, 0.5);
}

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

.btn-outline:hover {
    border-color: var(--color-accent-primary);
    background: rgba(59, 130, 246, 0.1);
}

/* Cards */
.card {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-xl);
    padding: var(--space-8);
    transition: all var(--transition-base);
}

.card:hover {
    border-color: var(--color-accent-primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.card-title {
    font-size: var(--text-2xl);
    margin-bottom: var(--space-4);
    background: var(--color-accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.card-description {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* Grid Layouts */
.grid {
    display: grid;
    gap: var(--space-8);
}

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

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

@media (max-width: 768px) {
    .grid {
        gap: var(--space-6);
    }
}

/* Glassmorphism Effect */
.glass {
    background: rgba(26, 26, 26, 0.6);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Gradient Text */
.gradient-text {
    background: var(--color-accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.mb-4 {
    margin-bottom: var(--space-4);
}

.mb-6 {
    margin-bottom: var(--space-6);
}

.mb-8 {
    margin-bottom: var(--space-8);
}

.mb-12 {
    margin-bottom: var(--space-12);
}

.mb-16 {
    margin-bottom: var(--space-16);
}

.mt-4 {
    margin-top: var(--space-4);
}

.mt-8 {
    margin-top: var(--space-8);
}

.mt-12 {
    margin-top: var(--space-12);
}

/* Animations will be in animations.css */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Loading State */
.loading {
    opacity: 0.5;
    pointer-events: none;
}

/* ===== SECTION STYLES ===== */

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

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 900px;
}

.hero-title {
    margin-bottom: var(--space-6);
    line-height: 1.1;
}

.hero-subtitle {
    font-size: var(--text-xl);
    max-width: 700px;
    margin-bottom: var(--space-8);
}

.hero-services {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    margin-bottom: var(--space-10);
}

.service-tag {
    padding: var(--space-2) var(--space-4);
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.3);
    border-radius: var(--border-radius-lg);
    font-size: var(--text-sm);
    color: var(--color-accent-primary);
    font-weight: 500;
}

.hero-cta {
    display: flex;
    gap: var(--space-4);
    flex-wrap: wrap;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
    overflow: hidden;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.3;
    animation: float 8s ease-in-out infinite;
}

.orb-1 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, #3b82f6 0%, transparent 70%);
    top: -250px;
    right: -100px;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, #8b5cf6 0%, transparent 70%);
    bottom: -200px;
    left: -100px;
    animation-delay: -4s;
}

/* Capabilities Section */
.capabilities {
    background: var(--color-bg-secondary);
}

.section-header {
    margin-bottom: var(--space-16);
}

.section-header h2 {
    margin-bottom: var(--space-4);
}

.section-header p {
    max-width: 600px;
    margin: 0 auto;
}

.card-icon {
    font-size: 3rem;
    margin-bottom: var(--space-4);
}

/* Projects Section */
.projects-grid {
    display: grid;
    gap: var(--space-12);
    margin-top: var(--space-12);
}

.project-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-xl);
    overflow: hidden;
    transition: all var(--transition-base);
}

.project-card:hover {
    border-color: var(--color-accent-primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.project-card:nth-child(even) {
    grid-template-columns: 1fr 1fr;
}

.project-card:nth-child(even) .project-image {
    order: 2;
}

.project-image {
    position: relative;
    min-height: 400px;
}

.project-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.neuromulti-bg {
    background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 100%);
}

.lavapp-bg {
    background: linear-gradient(135deg, #ea580c 0%, #f59e0b 100%);
}

.project-label {
    font-size: var(--text-2xl);
    font-weight: 700;
    color: white;
    text-align: center;
    padding: var(--space-4);
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius-lg);
}

.project-content {
    padding: var(--space-8);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.project-title {
    font-size: var(--text-4xl);
    margin-bottom: var(--space-4);
    background: var(--color-accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.project-description {
    margin-bottom: var(--space-6);
    line-height: 1.7;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-bottom: var(--space-6);
}

.tag {
    padding: var(--space-1) var(--space-3);
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: var(--border-radius-md);
    font-size: var(--text-xs);
    color: var(--color-accent-primary);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.project-stats {
    display: flex;
    gap: var(--space-6);
}

.stat {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.stat-value {
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--color-text-primary);
}

.stat-label {
    font-size: var(--text-xs);
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

@media (max-width: 968px) {

    .project-card,
    .project-card:nth-child(even) {
        grid-template-columns: 1fr;
    }

    .project-card:nth-child(even) .project-image {
        order: 1;
    }

    .project-image {
        min-height: 300px;
    }
}

/* About Section */
.about {
    background: var(--color-bg-secondary);
}

.about-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--space-12);
    align-items: start;
}

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

.expertise-areas h3 {
    font-size: var(--text-2xl);
    color: var(--color-text-primary);
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
}

.expertise-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3);
    background: rgba(59, 130, 246, 0.05);
    border: 1px solid rgba(59, 130, 246, 0.1);
    border-radius: var(--border-radius-md);
    font-weight: 500;
    transition: all var(--transition-base);
}

.expertise-item:hover {
    background: rgba(59, 130, 246, 0.1);
    border-color: var(--color-accent-primary);
    transform: translateX(5px);
}

.expertise-icon {
    font-size: var(--text-2xl);
}

.contact-info {
    display: flex;
    gap: var(--space-6);
    flex-wrap: wrap;
}

.contact-link {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--color-accent-primary);
    text-decoration: none;
    transition: color var(--transition-base);
}

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

.about-highlights {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.highlight-card {
    padding: var(--space-6);
    border-radius: var(--border-radius-xl);
    text-align: center;
}

.highlight-card h4 {
    font-size: var(--text-sm);
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-4);
}

.highlight-value {
    font-size: var(--text-3xl);
    font-weight: 700;
    background: var(--color-accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--space-2);
}

.highlight-label {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

@media (max-width: 968px) {
    .about-grid {
        grid-template-columns: 1fr;
    }
}

/* Testimonials Section */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-8);
    margin-top: var(--space-12);
}

.testimonial-card {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-xl);
    padding: var(--space-8);
    transition: all var(--transition-base);
}

.testimonial-card:hover {
    border-color: var(--color-accent-primary);
    transform: translateY(-4px);
}

.testimonial-content {
    margin-bottom: var(--space-6);
}

.testimonial-text {
    font-size: var(--text-lg);
    line-height: 1.8;
    color: var(--color-text-secondary);
    font-style: italic;
}

.testimonial-text::before {
    content: '"';
    font-size: var(--text-4xl);
    color: var(--color-accent-primary);
    line-height: 0;
    display: block;
    margin-bottom: var(--space-2);
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.author-name {
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-1);
}

.author-role {
    font-size: var(--text-sm);
    color: var(--color-text-tertiary);
}


/* Contact Section */
.contact-section {
    background: var(--color-bg-secondary);
    position: relative;
    overflow: hidden;
}

.contact-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-accent-gradient);
    opacity: 0.03;
    z-index: 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    position: relative;
    z-index: 1;
}

.contact-info h2 {
    font-size: clamp(var(--text-3xl), 5vw, var(--text-5xl));
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.contact-method {
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
    padding: var(--space-4);
    background: rgba(59, 130, 246, 0.05);
    border: 1px solid rgba(59, 130, 246, 0.1);
    border-radius: var(--border-radius-lg);
    transition: all var(--transition-base);
}

.contact-method:hover {
    background: rgba(59, 130, 246, 0.1);
    border-color: var(--color-accent-primary);
    transform: translateX(5px);
}

.method-icon {
    font-size: var(--text-3xl);
    line-height: 1;
}

.contact-method h4 {
    font-size: var(--text-base);
    color: var(--color-text-primary);
    margin-bottom: var(--space-1);
}

.contact-method p,
.contact-method a {
    font-size: var(--text-base);
    color: var(--color-text-secondary);
    text-decoration: none;
}

.contact-method a:hover {
    color: var(--color-accent-primary);
}

/* Contact Form */
.contact-form-container {
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-xl);
    padding: var(--space-10);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.form-group label {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-text-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-input {
    padding: var(--space-4);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    color: var(--color-text-primary);
    font-size: var(--text-base);
    font-family: var(--font-primary);
    transition: all var(--transition-base);
}

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

.form-input::placeholder {
    color: var(--color-text-tertiary);
}

select.form-input {
    cursor: pointer;
}

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

.btn-block {
    width: 100%;
}

.btn-loading {
    display: none;
}

.form-status {
    padding: var(--space-4);
    border-radius: var(--border-radius-md);
    text-align: center;
    font-weight: 500;
    display: none;
}

.form-status.success {
    display: block;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid var(--color-success);
    color: var(--color-success);
}

.form-status.error {
    display: block;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid #ef4444;
    color: #ef4444;
}

@media (max-width: 968px) {
    .contact-grid {
        grid-template-columns: 1fr;
        gap: var(--space-12);
    }

    .contact-form-container {
        padding: var(--space-8);
    }
}

.btn-lg {
    padding: var(--space-5) var(--space-10);
    font-size: var(--text-lg);
}


/* Footer */
.footer {
    background: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
    padding: var(--space-16) 0 var(--space-8);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-12);
    margin-bottom: var(--space-12);
}

.footer-title {
    font-size: var(--text-2xl);
    background: var(--color-accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--space-4);
}

.footer-description {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.footer-heading {
    font-size: var(--text-lg);
    color: var(--color-text-primary);
    margin-bottom: var(--space-4);
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.footer-links a {
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color var(--transition-base);
    font-size: var(--text-base);
}

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

.footer-links li:not(:has(a)) {
    color: var(--color-text-secondary);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--space-8);
    border-top: 1px solid var(--color-border);
    color: var(--color-text-tertiary);
    font-size: var(--text-sm);
}

@media (max-width: 968px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-8);
    }
}

@media (max-width: 640px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }

    .hero-cta {
        flex-direction: column;
    }

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