:root {
    --primary: #FF8C00; /* Dark Orange */
    --primary-light: #FFA500;
    --secondary: #121212; /* Deep Black */
    --accent: #F5F5F5; /* Off White */
    --text-dark: #1A1A1A;
    --text-light: #FFFFFF;
    --text-gray: #757575;
    --transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    --container-width: 1200px;
    --header-height: 80px;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--accent);
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4 {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
}

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

ul {
    list-style: none;
}

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

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 2rem;
}

.section-padding {
    padding: 100px 0;
}

.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

.btn-primary {
    background-color: var(--primary);
    color: var(--text-light);
}

.btn-primary:hover {
    background-color: #e67e00;
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(255, 140, 0, 0.3);
}

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

.btn-outline:hover {
    background-color: var(--primary);
    color: var(--text-light);
}

/* Header */
header {
    height: var(--header-height);
    display: flex;
    align-items: center;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition);
}

header.scrolled {
    background-color: rgba(18, 18, 18, 0.95);
    backdrop-filter: blur(10px);
    height: 70px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-light);
}

.logo span {
    color: var(--primary);
}

/* Navigation Desktop */
.nav-desktop {
    display: flex;
}

.nav-desktop ul {
    display: flex;
    gap: 2rem;
}

.nav-desktop ul li a {
    color: var(--text-light);
    font-size: 0.9rem;
    font-weight: 500;
    text-transform: uppercase;
}

.nav-desktop ul li a:hover {
    color: var(--primary);
}

/* Navigation Mobile Drawer */
.nav-mobile {
    position: fixed;
    top: 0;
    right: -100%;
    width: 350px;
    height: 100vh;
    background-color: var(--secondary);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transition: var(--transition);
    z-index: 1000;
    box-shadow: -10px 0 30px rgba(0,0,0,0.5);
}

.nav-mobile.active {
    right: 0;
}

.nav-mobile ul {
    flex-direction: column;
    text-align: center;
    gap: 2.5rem;
    display: flex;
}

.nav-mobile ul li a {
    color: var(--text-light);
    font-size: 1.2rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.nav-mobile ul li a:hover {
    color: var(--primary);
}

/* Menu Button Toggle */
.menu-wrapper {
    display: none; /* Hidden on desktop */
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    background: rgba(255,255,255,0.1);
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: var(--transition);
    border: 1px solid rgba(255,255,255,0.2);
}

.menu-wrapper:hover {
    background: var(--primary);
    border-color: var(--primary);
}

.menu-wrapper span {
    color: var(--text-light);
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.menu-toggle {
    color: var(--text-light);
    font-size: 1.2rem;
}

/* Hero */
.hero {
    height: 100vh;
    background: linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.6)), url('../images/hero.png') center/cover no-repeat;
    display: flex;
    align-items: center;
    color: var(--text-light);
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    line-height: 1.1;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

/* Services */
.services {
    background-color: #fff;
}

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

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 3px;
    background-color: var(--primary);
}

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

.service-card {
    background-color: var(--accent);
    padding: 3rem 2rem;
    text-align: center;
    border-radius: 8px;
    transition: var(--transition);
    border-bottom: 4px solid transparent;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.05);
    border-bottom-color: var(--primary);
}

.service-card i {
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: 1.5rem;
}

.service-card h3 {
    margin-bottom: 1rem;
}

/* Portfolio */
.portfolio {
    background-color: var(--secondary);
    color: var(--text-light);
}

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

.portfolio-item {
    position: relative;
    overflow: hidden;
    height: 400px;
}

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

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(18, 18, 18, 0.8);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: var(--transition);
    padding: 2rem;
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
}

.portfolio-item:hover img {
    transform: scale(1.1);
}

/* Why Us */
.stats {
    background-color: var(--primary);
    color: var(--text-light);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    text-align: center;
}

.stat-item h3 {
    font-size: 3rem;
    margin-bottom: 0.5rem;
}

/* Testimonials */
.testimonials {
    background-color: #fff;
}

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

.testimonial-card {
    padding: 2rem;
    background-color: var(--accent);
    border-radius: 8px;
    position: relative;
}

.testimonial-card p {
    font-style: italic;
    margin-bottom: 1.5rem;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.author-info h4 {
    font-size: 1rem;
    margin-bottom: 0.2rem;
}

.author-info span {
    font-size: 0.8rem;
    color: var(--text-gray);
}

/* Contact */
.contact-container {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 4rem;
}

.contact-info h3 {
    margin-bottom: 1.5rem;
}

.info-item {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.info-item i {
    color: var(--primary);
    font-size: 1.2rem;
}

.contact-form {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

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

input, textarea {
    padding: 1rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-family: inherit;
}

textarea {
    height: 150px;
}

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

/* Footer */
footer {
    background-color: var(--secondary);
    color: var(--text-light);
    padding: 4rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-col h4 {
    margin-bottom: 1.5rem;
    color: var(--primary);
}

.footer-col p {
    color: #ccc;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    background-color: rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 0.9rem;
}

.techlearn-tag {
    margin-top: 1rem;
    color: var(--text-gray);
}

.techlearn-tag span {
    color: var(--primary);
}

/* Animations */
[data-aos] {
    opacity: 0;
    transform: translateY(30px);
    transition: var(--transition);
}

[data-aos].active {
    opacity: 1;
    transform: translateY(0);
}

/* Mobile Responsive */
@media (max-width: 1024px) {
    :root {
        --header-height: 70px;
    }
    .hero h1 {
        font-size: 3rem;
    }
    .contact-container {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
}

@media (max-width: 768px) {
    .section-padding {
        padding: 60px 0;
    }
    .hero h1 {
        font-size: 2.5rem;
    }
    .hero p {
        font-size: 1rem;
    }
    
    /* Mobile Menu Toggle */
    .menu-wrapper {
        display: flex !important;
    }

    .nav-desktop {
        display: none !important;
    }

    .menu-toggle {
        display: block !important;
        font-size: 1.5rem;
        color: var(--text-light);
        cursor: pointer;
        z-index: 1001;
    }

    nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        height: 100vh;
        background-color: var(--secondary);
        display: flex !important;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transition: var(--transition);
        z-index: 1000;
        box-shadow: -10px 0 30px rgba(0,0,0,0.5);
    }

    nav.active {
        right: 0;
    }

    nav ul {
        flex-direction: column;
        text-align: center;
        gap: 2rem;
    }

    nav ul li a {
        font-size: 1.2rem;
    }

    /* Grid Adjustments */
    .services-grid, .testimonials-grid, .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
    }

    .service-detail-section {
        grid-template-columns: 1fr !important;
        gap: 2rem;
        margin-bottom: 4rem;
        direction: ltr !important;
    }

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

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

    header .btn {
        display: none; /* Hide CTA in header on small mobile */
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2rem;
    }
    .stats-grid {
        grid-template-columns: 1fr;
    }
    .container {
        padding: 0 1.5rem;
    }
}