:root {
    --color-bg: #0a192f;
    --color-bg-alt: #112240;
    --color-text: #e6f1ff;
    --color-text-muted: #8892b0;
    --color-primary: #64ffda;
    --color-secondary: #0a192f;
    --color-accent: #00bfa5;
    --font-primary: 'Inter', sans-serif;
    --font-heading: 'Outfit', sans-serif;
    --transition: all 0.3s ease-in-out;
    --border-radius: 8px;
}

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

html {
    scroll-behavior: smooth;
}

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

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

ul {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.btn {
    display: inline-block;
    padding: 0.8rem 1.8rem;
    border-radius: 4px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid transparent;
}

.btn-primary {
    background-color: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.btn-primary:hover {
    background-color: rgba(100, 255, 218, 0.1);
}

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

.btn-outline:hover {
    background-color: rgba(230, 241, 255, 0.1);
}

.section {
    padding: 6rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    color: var(--color-text);
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background-color: var(--color-primary);
    border-radius: 2px;
}

.section-desc {
    color: var(--color-text-muted);
    max-width: 600px;
    margin: 0 auto;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(10, 25, 47, 0.85);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    transition: var(--transition);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
    height: 40px;
    width: auto;
    border-radius: 0;
    filter: invert(1) brightness(2);
    /* Make black logo white for dark theme */
}

.nav-list {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text);
}

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

.mobile-nav-toggle {
    display: none;
    background: transparent;
    border: none;
    cursor: pointer;
}

.bar {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--color-primary);
    margin: 5px 0;
    transition: var(--transition);
}

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

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 25, 47, 0.7);
    z-index: -1;
}

.hero-content {
    max-width: 800px;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 4rem;
    margin-bottom: 1.5rem;
    background: linear-gradient(to right, #fff, var(--color-accent));
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--color-text-muted);
    margin-bottom: 2.5rem;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Services Section */
.services {
    background-color: var(--color-bg);
}

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

.service-card {
    background-color: var(--color-bg-alt);
    padding: 2rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
    border: 1px solid transparent;
}

.service-card:hover {
    transform: translateY(-5px);
    border-color: var(--color-primary);
}

.service-icon {
    margin-bottom: 1.5rem;
    color: var(--color-primary);
}

.service-card h3 {
    font-family: var(--font-heading);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.service-card p {
    color: var(--color-text-muted);
}

/* Expertise Section */
.expertise {
    background-color: var(--color-bg-alt);
}

.expertise-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.expertise-content h2 {
    margin-bottom: 1.5rem;
}

.expertise-content p {
    color: var(--color-text-muted);
    margin-bottom: 2rem;
}

.expertise-list li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.8rem;
    color: var(--color-text);
}

.expertise-list li::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--color-primary);
}

.expertise-image img {
    border-radius: var(--border-radius);
    box-shadow: 0 10px 30px -15px rgba(2, 12, 27, 0.7);
    transition: var(--transition);
}

.expertise-image:hover img {
    transform: scale(1.02);
}

/* Projects Section */
.projects {
    background-color: var(--color-bg);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.project-card {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    height: 300px;
}

.project-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.project-info {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 1.5rem;
    background: linear-gradient(to top, rgba(10, 25, 47, 0.9), transparent);
    transform: translateY(100%);
    transition: var(--transition);
}

.project-card:hover img {
    transform: scale(1.1);
}

.project-card:hover .project-info {
    transform: translateY(0);
}

.project-info h3 {
    font-family: var(--font-heading);
    margin-bottom: 0.5rem;
}

.project-info p {
    color: var(--color-primary);
    font-size: 0.9rem;
}

.project-link {
    display: inline-block;
    margin-top: 1rem;
    color: var(--color-primary);
    font-size: 0.9rem;
    font-weight: 600;
}

.project-link:hover {
    text-decoration: underline;
}

/* Contact Section */
.contact {
    background-color: var(--color-bg-alt);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info h2 {
    margin-bottom: 1rem;
}

.contact-info p {
    color: var(--color-text-muted);
    margin-bottom: 2rem;
}

.contact-item {
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.contact-item span {
    color: var(--color-primary);
    font-weight: 600;
}

.contact-form {
    background-color: var(--color-bg);
    padding: 2rem;
    border-radius: var(--border-radius);
}

.form-group {
    margin-bottom: 1.5rem;
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    background-color: var(--color-bg-alt);
    border: 1px solid #233554;
    border-radius: 4px;
    color: var(--color-text);
    font-family: var(--font-primary);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
}

/* Footer */
.footer {
    background-color: var(--color-bg);
    padding: 3rem 0 1rem;
    border-top: 1px solid #233554;
}

.footer-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.footer-logo h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.footer-logo p {
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

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

.footer-bottom {
    text-align: center;
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

/* Animations */
.fade-in-up {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s forwards;
}

.delay-1 {
    animation-delay: 0.2s;
}

.delay-2 {
    animation-delay: 0.4s;
}

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

/* Responsive */
@media (max-width: 768px) {
    .header-container {
        padding: 0 1rem;
    }

    .mobile-nav-toggle {
        display: block;
        z-index: 1001;
    }

    .nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        height: 100vh;
        background-color: var(--color-bg-alt);
        padding: 6rem 2rem;
        transition: 0.4s ease;
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.5);
    }

    .nav.active {
        right: 0;
    }

    .nav-list {
        flex-direction: column;
        align-items: flex-start;
    }

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

    .mobile-nav-toggle.active .bar:nth-child(1) {
        transform: rotate(-45deg) translate(-5px, 6px);
    }

    .mobile-nav-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }

    .mobile-nav-toggle.active .bar:nth-child(3) {
        transform: rotate(45deg) translate(-5px, -6px);
    }

    .contact-wrapper,
    .expertise-container {
        grid-template-columns: 1fr;
    }

    .footer-container {
        flex-direction: column;
        gap: 2rem;
        text-align: center;
    }

    .footer-links {
        justify-content: center;
        flex-wrap: wrap;
    }
}

.form-status {
    margin-top: 1rem;
    font-weight: 600;
    min-height: 1.5em;
}