:root {
    --bg-color: #050505;
    --text-color: #e2e8f0;
    --text-muted: #94a3b8;
    --accent: #06b6d4;
    --accent-glow: rgba(6, 182, 212, 0.4);
    --secondary: #8b5cf6;
    --card-bg: rgba(255, 255, 255, 0.03);
    --card-border: rgba(255, 255, 255, 0.08);
    --nav-bg: rgba(5, 5, 5, 0.8);
    --spacing-section: 6rem;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4 {
    font-weight: 800;
    line-height: 1.2;
}

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

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

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

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

span {
    color: var(--accent);
    text-shadow: 0 0 20px var(--accent-glow);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.8rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.9rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--secondary));
    color: #fff;
    box-shadow: 0 4px 15px rgba(6, 182, 212, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(6, 182, 212, 0.5);
}

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

.btn-secondary:hover {
    background-color: var(--text-color);
    color: var(--bg-color);
}

.btn-outline {
    border-color: var(--accent);
    color: var(--accent);
}

.btn-outline:hover {
    background: var(--accent);
    color: #fff;
    box-shadow: 0 0 15px var(--accent-glow);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: 1.5rem 0;
    transition: var(--transition);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.navbar.scrolled {
    background: var(--nav-bg);
    padding: 1rem 0;
    border-bottom: 1px solid var(--card-border);
}

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

.logo {
    font-size: 1.8rem;
    font-weight: 800;
    letter-spacing: 1px;
}

.nav-links {
    display: flex;
    list-style: none;
    align-items: center;
    gap: 2rem;
}

.nav-links li a {
    font-weight: 600;
    font-size: 0.95rem;
    position: relative;
}

.nav-links li a:not(.btn)::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: var(--accent);
    transition: var(--transition);
}

.nav-links li a:not(.btn):hover::after {
    width: 100%;
}

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

.hamburger span {
    width: 25px;
    height: 2px;
    background-color: var(--text-color);
    transition: var(--transition);
}

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

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('assets/hero_bg.png') no-repeat center center/cover;
    z-index: -2;
    transform: scale(1.05);
    animation: slowZoom 20s infinite alternate linear;
}

@keyframes slowZoom {
    0% { transform: scale(1); }
    100% { transform: scale(1.1); }
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(0deg, var(--bg-color) 0%, rgba(5,5,5,0.4) 100%);
    z-index: -1;
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin-top: 5rem;
}

.hero h1 {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    margin-bottom: 1.5rem;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2.5rem;
    font-weight: 300;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
}

/* Section Globals */
.section-title {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

/* About Section */
.about-flex {
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.about-text {
    max-width: 800px;
}

.about-text h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
}

.about-text p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.stats {
    display: flex;
    justify-content: space-around;
    margin-top: 3rem;
    padding-top: 3rem;
    border-top: 1px solid var(--card-border);
}

.stat-item h3 {
    font-size: 2.5rem;
    color: var(--secondary);
    margin-bottom: 0.5rem;
}

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

.service-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    overflow: hidden;
    backdrop-filter: blur(5px);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.service-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent);
    box-shadow: 0 10px 30px rgba(6, 182, 212, 0.1);
}

.service-img {
    width: 100%;
    height: 250px;
    overflow: hidden;
}

.service-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.service-info {
    padding: 2rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.service-info.no-img {
    padding-top: 1rem;
}

.service-icon {
    padding: 2rem 2rem 0;
}

.service-info h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.service-info p {
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.learn-more {
    color: var(--accent);
    font-weight: 600;
    align-self: flex-start;
}

/* Materials Section */
.material-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.material-card {
    background: linear-gradient(135deg, rgba(255,255,255,0.05), transparent);
    padding: 2rem;
    border-radius: 15px;
    border: 1px solid var(--card-border);
    transition: var(--transition);
}

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

.material-card h4 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

/* Portfolio Gallery */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.portfolio-item {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    height: 350px;
    cursor: pointer;
}

.portfolio-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.portfolio-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 2rem;
    background: linear-gradient(to top, rgba(0,0,0,0.9), transparent);
    transform: translateY(100%);
    transition: transform 0.4s ease;
}

.portfolio-overlay h4 {
    color: #fff;
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.portfolio-overlay p {
    color: var(--accent);
    font-weight: 600;
}

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

.portfolio-item:hover .portfolio-overlay {
    transform: translateY(0);
}

/* FAQ */
.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 1rem;
    border-bottom: 1px solid var(--card-border);
}

.faq-question {
    width: 100%;
    text-align: left;
    background: none;
    border: none;
    padding: 1.5rem 0;
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-color);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: inherit;
    transition: var(--transition);
}

.faq-question:hover {
    color: var(--accent);
}

.faq-question::after {
    content: '+';
    font-size: 1.5rem;
    transition: var(--transition);
}

.faq-item.active .faq-question::after {
    content: '-';
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
}

.faq-answer p {
    padding-bottom: 1.5rem;
}

/* Features Strip */
.features {
    background: linear-gradient(90deg, #111 0%, #0a0a0a 100%);
    border-top: 1px solid var(--card-border);
    border-bottom: 1px solid var(--card-border);
    padding: 4rem 0;
}

.features-wrap {
    display: flex;
    justify-content: space-around;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
    text-align: center;
}

.feature-item h1 {
    font-size: 3rem;
    margin-bottom: 0.5rem;
}

.feature-item span {
    font-size: 1.5rem;
    color: var(--secondary);
    text-shadow: none;
}

/* Contact */
.contact-box {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 4rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.contact-text {
    margin-bottom: 2rem;
}

.contact-text h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.contact-form {
    width: 100%;
}

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

.input-group input, 
.input-group textarea {
    width: 100%;
    padding: 1rem 1.5rem;
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--card-border);
    border-radius: 10px;
    color: var(--text-color);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

.input-group input:focus, 
.input-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 10px rgba(6, 182, 212, 0.2);
}

.btn-block {
    width: 100%;
    border: none;
    padding: 1rem;
    font-size: 1.1rem;
}

/* Footer */
footer {
    background: #000;
    padding: 4rem 0 1.5rem;
    border-top: 1px solid var(--card-border);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-logo p {
    margin-top: 1rem;
    max-width: 300px;
}

.footer-links {
    display: flex;
    gap: 4rem;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255,255,255,0.05);
}

/* Animations & Micro-interactions */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 { transition-delay: 0.2s; }
.delay-2 { transition-delay: 0.4s; }
.delay-3 { transition-delay: 0.6s; }

/* Responsive */
@media (max-width: 900px) {
    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--nav-bg);
        border-bottom: 1px solid var(--card-border);
        flex-direction: column;
        padding: 2rem 0;
        gap: 1.5rem;
        transform: translateY(-150%);
        opacity: 0;
        transition: var(--transition);
        z-index: -1;
    }

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

    .hamburger {
        display: flex;
    }

    .hamburger.active span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }
    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }
    .hamburger.active span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    .hero h1 {
        font-size: 2.5rem;
    }

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

    .contact-box {
        padding: 2rem;
    }

    .footer-content {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .stats {
        flex-direction: column;
        gap: 2rem;
    }
}