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

:root {
    --primary-color: #1a1a1a;
    --secondary-color: #333;
    --accent-color: #0066cc;
    --text-color: #333;
    --light-bg: #f5f5f5;
    --white: #ffffff;
    --border-color: #e0e0e0;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    overflow-x: hidden;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    z-index: 1000;
    padding: 1rem 0;
}

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

.nav-brand a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
    letter-spacing: 2px;
}

.logo {
    height: 50px;
    width: auto;
    filter: brightness(0);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-menu a:hover {
    color: var(--accent-color);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    transition: 0.3s;
}

/* Hero Section */
.hero {
    height: 100vh;
    background: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
    margin-top: 60px;
}

.hero-content h1 {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 1rem;
    letter-spacing: 3px;
}

.hero-content p {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    letter-spacing: 2px;
}

.hero-subtitle {
    font-size: 1.2rem !important;
    max-width: 700px;
    margin: 0 auto 2rem;
    font-weight: 300;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 40px;
    text-decoration: none;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all 0.3s;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn-primary {
    background: var(--accent-color);
    color: var(--white);
}

.btn-primary:hover {
    background: #0052a3;
}

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

.btn-secondary:hover {
    background: var(--primary-color);
    color: var(--white);
}

.btn-link {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: color 0.3s;
}

.btn-link:hover {
    color: #0052a3;
}

/* Section Titles */
.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--primary-color);
}

.section-subtitle {
    text-align: center;
    font-size: 1.1rem;
    margin-bottom: 3rem;
    color: var(--secondary-color);
    font-weight: 300;
}

/* Product Teaser */
.product-teaser {
    padding: 4rem 0;
    background: var(--light-bg);
}

.teaser-image-container {
    margin-bottom: 3rem;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.teaser-main {
    width: 100%;
    height: auto;
    max-height: 600px;
    object-fit: cover;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

.image-caption {
    text-align: center;
    margin-top: 1rem;
    font-size: 0.9rem;
    color: var(--secondary-color);
    font-style: italic;
    letter-spacing: 1px;
}

.teaser-info {
    text-align: center;
    max-width: 800px;
    margin: 3rem auto 0;
}

.teaser-info p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 2rem;
    color: var(--secondary-color);
}

/* Capabilities */
.capabilities {
    padding: 4rem 0;
}

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

.capability-card {
    text-align: center;
    padding: 2rem;
    background: var(--white);
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.capability-icon {
    margin-bottom: 1.5rem;
}

.capability-icon i {
    font-size: 3rem;
    color: var(--accent-color);
}

.capability-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
    font-weight: 700;
}

.capability-card p {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--secondary-color);
}

/* Applications */
.applications {
    background: var(--light-bg);
    padding: 4rem 0;
}

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

.application-card {
    text-align: center;
    padding: 2rem;
    background: var(--white);
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.application-icon {
    margin-bottom: 1.5rem;
}

.application-icon i {
    font-size: 2.5rem;
    color: var(--accent-color);
}

.application-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: 1px;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.application-card p {
    font-size: 0.95rem;
    color: var(--secondary-color);
    line-height: 1.6;
}

/* Timeline */
.timeline {
    padding: 4rem 0;
    background: var(--primary-color);
    color: var(--white);
}

.timeline-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.timeline-content h2 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    letter-spacing: 2px;
    font-weight: 600;
}

.timeline-date {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--white);
    letter-spacing: 3px;
}

.timeline-text {
    font-size: 1.1rem;
    line-height: 1.8;
    color: rgba(255,255,255,0.9);
}

/* About */
.about {
    padding: 4rem 0;
    background: var(--white);
}

.about-content {
    display: flex;
    align-items: center;
    gap: 3rem;
}

.about-image {
    flex: 1;
}

.about-image img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

.about-text {
    flex: 1;
}

.about-text h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

.about-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    color: var(--secondary-color);
}

/* Company Info */
.company-info {
    background: var(--light-bg);
    padding: 4rem 0;
}

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

.info-item h4 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
    letter-spacing: 1px;
}

.info-item p {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--secondary-color);
}

/* Contact */
.contact {
    padding: 4rem 0;
    background: var(--white);
    text-align: center;
}

.contact h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.contact-intro {
    max-width: 800px;
    margin: 0 auto 3rem;
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--secondary-color);
}

.contact-form {
    max-width: 700px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    text-align: left;
}

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

.contact-form input,
.contact-form textarea {
    padding: 12px 20px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
    font-family: inherit;
}

.form-checkbox {
    margin: 0.5rem 0;
}

.form-checkbox label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.95rem;
    color: var(--secondary-color);
}

.form-checkbox input[type="checkbox"] {
    width: auto;
    padding: 0;
}

/* Footer */
.footer {
    background: var(--primary-color);
    color: var(--white);
    padding: 3rem 0 1rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 3rem;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-left h4 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    letter-spacing: 2px;
}

.footer-left p {
    font-size: 0.95rem;
    color: rgba(255,255,255,0.8);
    margin-bottom: 0.5rem;
}

.footer-address {
    font-size: 0.85rem;
    margin-top: 1rem;
}

.footer-right {
    display: flex;
    align-items: flex-start;
}

.footer-links {
    list-style: none;
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}

.footer-links a {
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    transition: color 0.3s;
    font-size: 0.95rem;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 1rem;
}

.footer-bottom p {
    font-size: 0.9rem;
    color: rgba(255,255,255,0.7);
}

/* Placeholder Images */
.placeholder-img {
    width: 100%;
    height: 300px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.2rem;
}


/* Responsive */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 1rem;
        gap: 1rem;
        box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: all 0.3s;
    }

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

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

    .hero-content p {
        font-size: 1.2rem;
    }

    .about-content {
        flex-direction: column;
    }

    .footer-content {
        flex-direction: column;
    }

    .footer-links {
        flex-direction: column;
        gap: 0.5rem;
    }

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

    .teaser-main {
        max-height: 350px;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 2rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .product-info h2,
    .about-text h2 {
        font-size: 2rem;
    }
}