/* --- Design System (Light Theme) --- */
:root {
    --bg-light: #f8f9fa;
    --surface: #ffffff;
    --primary: #0062ff;
    --accent: #00b894;
    --text-dark: #1e222d;
    --text-muted: #636e72;
    --border: #dfe6e9;
    --nav-height: 90px;
}

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

html {
    scroll-behavior: smooth;
}

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

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

a {
    text-decoration: none;
    color: inherit;
    transition: 0.3s;
}

ul {
    list-style: none;
}

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

.section {
    padding: 100px 0;
}

.alt-bg {
    background-color: var(--surface);
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3.5rem;
}

.section-title span {
    color: var(--primary);
    border-bottom: 3px solid var(--accent);
}

.section-subtitle {
    text-align: center;
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-top: -2.5rem;
    margin-bottom: 3.5rem;
}

/* --- Navigation --- */
.header {
    width: 100%;
    height: var(--nav-height);
    background-color: #ffffff !important;
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border);
    transition: 0.4s ease;
}

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

.logo {
    display: flex;
    align-items: center;
    margin: 0;
}

.logo-img {
    height: 70px;
    width: auto;
    display: block;
    object-fit: contain;
    transition: 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.nav-menu {
    display: flex;
    gap: 2.5rem;
}

.nav-link {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-dark);
    text-transform: uppercase;
}

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

.hamburger {
    display: none;
    cursor: pointer;
}

.bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    transition: 0.3s;
    background-color: var(--text-dark);
}

.hamburger.active .bar:nth-child(2) {
    opacity: 0;
}

.hamburger.active .bar:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.hamburger.active .bar:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

/* --- Hero --- */
.hero {
    height: 100vh;
    background: url('../assets/images/hero-white.png') center/cover no-repeat;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: var(--nav-height);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(255, 255, 255, 0.9) 20%, rgba(255, 255, 255, 0.4) 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: left;
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
    line-height: 1.2;
}

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

.hero-subtitle {
    font-size: 1.3rem;
    color: var(--text-muted);
    font-weight: 500;
    letter-spacing: 2px;
}

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

.service-card {
    background-color: var(--surface);
    padding: 3.5rem 2.5rem;
    border-radius: 16px;
    text-align: center;
    border: 1px solid var(--border);
    transition: 0.4s;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.02);
}

.service-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary);
    box-shadow: 0 20px 40px rgba(0, 98, 255, 0.08);
}

.service-icon {
    width: 85px;
    height: 85px;
    background-color: rgba(0, 98, 255, 0.05);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 2rem;
    color: var(--primary);
}

.service-card h3 {
    font-size: 1.4rem;
    margin-bottom: 1.2rem;
    color: var(--text-dark);
}

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

/* --- Products --- */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2.5rem;
}

.product-card {
    background-color: var(--surface);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--border);
    transition: 0.3s;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.03);
}

.product-card:hover {
    border-color: var(--accent);
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 184, 148, 0.1);
}

.product-img {
    height: 250px;
    overflow: hidden;
}

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

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

.product-info {
    padding: 2.5rem;
}

.product-info h3 {
    font-size: 1.3rem;
    margin-bottom: 0.8rem;
    color: var(--text-dark);
}

.product-info p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 2rem;
}

.product-btn {
    display: inline-block;
    color: var(--primary);
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.9rem;
    border-bottom: 2px solid var(--primary);
    padding-bottom: 4px;
}

.product-btn:hover {
    color: var(--accent);
    border-color: var(--accent);
    letter-spacing: 1px;
}

/* --- Features --- */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
    text-align: center;
}

.feature-item {
    background: var(--surface);
    padding: 2.5rem;
    border-radius: 12px;
    border: 1px solid var(--border);
    transition: 0.3s;
}

.feature-item:hover {
    border-color: var(--accent);
    background-color: rgba(0, 184, 148, 0.02);
}

.feature-icon {
    font-size: 2.2rem;
    color: var(--accent);
    margin-bottom: 1.2rem;
}

/* --- About --- */
.about-flex {
    display: flex;
    align-items: center;
    gap: 5rem;
}

.about-text {
    flex: 1.2;
}

.about-text .section-title {
    text-align: left;
}

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

.about-stats {
    flex: 0.8;
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

.stat-box {
    background-color: var(--bg-light);
    padding: 2.5rem;
    border-radius: 16px;
    text-align: center;
    border-left: 5px solid var(--primary);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.02);
}

.stat-num {
    display: block;
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-muted);
    font-size: 1rem;
    text-transform: uppercase;
    font-weight: 600;
}

/* --- Contact Section --- */
.contact-center {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
    background: var(--surface);
    padding: 4rem;
    border-radius: 20px;
    box-shadow: 0 10px 50px rgba(0, 0, 0, 0.05);
    border: 1px solid var(--border);
}

.contact-center .section-title {
    text-align: center;
    margin-bottom: 1.5rem;
}

.contact-center p {
    color: var(--text-muted);
    margin-bottom: 3rem;
}

.contact-list {
    text-align: left;
    display: inline-block;
}

.contact-list li {
    margin-bottom: 2rem;
}

.contact-list strong {
    display: block;
    color: var(--primary);
    font-family: 'Orbitron', sans-serif;
    margin-bottom: 0.5rem;
}

.contact-list a {
    font-size: 1.2rem;
    font-weight: 500;
}

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

/* --- Footer --- */
.footer {
    background-color: #ffffff;
    padding: 100px 0 40px;
    border-top: 1px solid var(--border);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 4rem;
    margin-bottom: 5rem;
}

.footer-brand h3 {
    margin-bottom: 1.5rem;
    color: var(--primary);
}

.footer-brand p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.footer-links h4 {
    margin-bottom: 2rem;
    font-size: 1.2rem;
    color: var(--text-dark);
}

.footer-links li {
    margin-bottom: 1rem;
}

.footer-links a {
    color: var(--text-muted);
    font-weight: 500;
}

.footer-links a:hover {
    color: var(--primary);
    padding-left: 8px;
}

.footer-bottom {
    text-align: center;
    padding-top: 3rem;
    border-top: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* --- Responsive --- */
@media screen and (max-width: 968px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: var(--nav-height);
        flex-direction: column;
        background-color: var(--surface);
        width: 100%;
        text-align: center;
        transition: 0.4s;
        box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        padding: 3rem 0;
        z-index: 1001;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-link {
        font-size: 1.3rem;
    }

    .hamburger {
        display: block;
    }
    
    .hero-title {
        font-size: 2.8rem;
    }
    
    .about-flex {
        flex-direction: column;
    }
    
    .about-stats {
        width: 100%;
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
}

@media screen and (max-width: 768px) {
    .hero-title {
        font-size: 2.2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }

    .contact-center {
        padding: 2.5rem 1.5rem;
    }
}