:root {
    --primary: #1a4fd8;
    --primary-dark: #143ca6;
    --navy: #0f2a43;
    --text: #1f2937;
    --muted: #6b7280;
    --bg: #f5f7fb;
    --card: #ffffff;
    --border: #e5e7eb;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', 'Helvetica Neue', Arial, sans-serif;
    margin: 0;
    padding: 0;
    padding-top: 82px;
    color: var(--text);
    background-color: var(--bg);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

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

.container {
    width: 92%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px 0;
}

/* Header Styles */
header {
    background-color: rgba(255, 255, 255, 0.9);
    color: var(--navy);
    padding: 12px 0;
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.08);
    backdrop-filter: blur(10px);
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 24px;
}

.logo h1 {
    margin: 0;
    font-size: 2em;
    color: var(--primary);
    letter-spacing: 0.5px;
    font-weight: 800;
}

.logo p {
    margin: -6px 0 0 0;
    font-size: 0.72em;
    color: var(--muted);
    letter-spacing: 2.5px;
    text-transform: uppercase;
}

nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    align-items: center;
    gap: 6px;
}

nav ul li {
    margin: 0;
}

nav ul li a {
    color: var(--navy);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95em;
    padding: 10px 16px;
    border-radius: 999px;
    transition: color 0.3s ease, background-color 0.3s ease;
}

nav ul li a:hover {
    color: var(--primary);
    background-color: rgba(26, 79, 216, 0.12);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 88vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: left;
    color: #fff;
    overflow: hidden;
}

.hero img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
    filter: brightness(0.6);
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, rgba(15, 42, 67, 0.92), rgba(15, 42, 67, 0.35));
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    width: 100%;
}

.hero-content .container {
    padding: 120px 0 100px;
}

.hero-content h2 {
    font-size: clamp(2.6rem, 4.2vw, 3.6rem);
    margin-bottom: 16px;
    line-height: 1.1;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.hero-content p {
    font-size: 1.2em;
    margin-bottom: 28px;
    max-width: 640px;
    color: rgba(255, 255, 255, 0.9);
}

.hero-actions {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: var(--primary);
    color: #fff;
    padding: 14px 30px;
    text-decoration: none;
    border-radius: 999px;
    font-weight: 600;
    letter-spacing: 0.2px;
    border: 1px solid transparent;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
    box-shadow: 0 12px 30px rgba(26, 79, 216, 0.25);
}

.btn:hover {
    background-color: var(--primary-dark);
    transform: translateY(-1px);
}

.btn.btn-secondary {
    background-color: transparent;
    border-color: rgba(255, 255, 255, 0.7);
    box-shadow: none;
}

.btn.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.12);
}

/* Section Styling */
section {
    padding: 96px 0;
    text-align: center;
    scroll-margin-top: 100px;
}

section:nth-of-type(even) {
    background-color: #f8fafc;
}

h3 {
    font-size: clamp(2rem, 3vw, 2.6rem);
    color: var(--navy);
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 12px;
    font-weight: 800;
    letter-spacing: -0.02em;
}

h3::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    height: 4px;
    width: 90px;
    background: linear-gradient(90deg, var(--primary), #4f8cff);
    border-radius: 999px;
}

.section-description {
    font-size: 1.08em;
    color: var(--muted);
    margin-bottom: 60px;
    max-width: 840px;
    margin-left: auto;
    margin-right: auto;
}

/* About Us Section */
.about-us .about-content {
    display: flex;
    align-items: center;
    text-align: left;
    gap: 48px;
    margin-top: 40px;
}

.about-us .about-text {
    flex: 2;
}

.about-us .about-text p {
    margin-bottom: 20px;
    font-size: 1.08em;
    color: #374151;
}

.about-us .about-image {
    flex: 1;
}

.about-us .about-image img {
    max-width: 100%;
    height: auto;
    border-radius: 18px;
    box-shadow: 0 18px 40px rgba(15, 23, 42, 0.12);
}

/* Products & Services Section */
.products-services .product-category {
    margin-bottom: 70px;
    text-align: left;
}

.products-services .product-category h4 {
    font-size: 1.65em;
    color: var(--navy);
    margin-bottom: 24px;
    border-bottom: 2px solid rgba(26, 79, 216, 0.2);
    display: inline-block;
    padding-bottom: 6px;
}

.products-services .product-item {
    display: flex;
    align-items: center;
    gap: 30px;
    margin-bottom: 32px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 24px;
    box-shadow: 0 18px 40px rgba(15, 23, 42, 0.08);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.products-services .product-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 22px 44px rgba(15, 23, 42, 0.12);
}

.products-services .product-item:nth-child(even) {
    flex-direction: row-reverse;
}

.products-services .product-item img {
    width: 42%;
    height: auto;
    border-radius: 14px;
    box-shadow: 0 12px 24px rgba(15, 23, 42, 0.12);
}

.products-services .product-item p {
    width: 58%;
    font-size: 1.05em;
    color: #374151;
}

/* Why Choose Us Section */
.why-choose-us {
    background-color: #eef2f7;
}

.why-choose-us .features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 28px;
    margin-top: 40px;
}

.why-choose-us .feature-item {
    background-color: var(--card);
    padding: 28px;
    border-radius: 18px;
    border: 1px solid var(--border);
    box-shadow: 0 16px 32px rgba(15, 23, 42, 0.08);
    text-align: center;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.why-choose-us .feature-item:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 36px rgba(15, 23, 42, 0.12);
}

.why-choose-us .feature-item img {
    width: 100%;
    max-height: 200px;
    object-fit: cover;
    border-radius: 12px;
    margin-bottom: 20px;
}

.why-choose-us .feature-item h4 {
    font-size: 1.35em;
    color: var(--navy);
    margin-bottom: 12px;
}

.why-choose-us .feature-item p {
    font-size: 0.98em;
    color: #4b5563;
}

/* Applications Section */
.applications .application-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 28px;
    margin-top: 40px;
}

.applications .application-item {
    background-color: var(--card);
    padding: 24px;
    border-radius: 18px;
    border: 1px solid var(--border);
    box-shadow: 0 16px 32px rgba(15, 23, 42, 0.08);
    text-align: center;
}

.applications .application-item img {
    width: 100%;
    max-height: 180px;
    object-fit: cover;
    border-radius: 12px;
    margin-bottom: 15px;
}

.applications .application-item h4 {
    font-size: 1.3em;
    color: var(--navy);
    margin-bottom: 10px;
}

.applications .application-item p {
    font-size: 0.96em;
    color: #4b5563;
}

/* Global Reach Section */
.global-reach {
    background: linear-gradient(120deg, #0f2a43 0%, #123a63 100%);
    color: #ecf0f1;
}

.global-reach h3 {
    color: #ecf0f1;
}

.global-reach h3::after {
    background: linear-gradient(90deg, #4f8cff, #7db1ff);
}

.global-reach .global-content {
    display: flex;
    align-items: center;
    gap: 40px;
    margin-top: 40px;
    text-align: left;
    padding: 24px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.global-reach .global-text {
    flex: 1;
}

.global-reach .global-text p {
    margin-bottom: 20px;
    font-size: 1.05em;
    color: rgba(236, 240, 241, 0.85);
}

.global-reach .global-image {
    flex: 1;
}

.global-reach .global-image img {
    max-width: 100%;
    height: auto;
    border-radius: 18px;
    box-shadow: 0 18px 40px rgba(15, 23, 42, 0.3);
}

/* Contact Us Section */
.contact-us .contact-info {
    margin-top: 40px;
    margin-bottom: 40px;
    font-size: 1.05em;
    color: #374151;
    display: inline-block;
    text-align: left;
    background: var(--card);
    padding: 24px 30px;
    border-radius: 18px;
    border: 1px solid var(--border);
    box-shadow: 0 16px 32px rgba(15, 23, 42, 0.08);
}

.contact-us .contact-info p {
    margin: 10px 0;
}

.contact-us .contact-info a {
    color: var(--primary);
    text-decoration: none;
}

.contact-us .contact-info a:hover {
    text-decoration: underline;
}

.contact-us .contact-form p {
    font-style: italic;
    color: var(--muted);
}

/* Footer Styles */
footer {
    background-color: #0f2a43;
    color: #ecf0f1;
    padding: 24px 0;
    text-align: center;
    font-size: 0.9em;
}

footer .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
}

.social-links a {
    color: #ecf0f1;
    text-decoration: none;
    margin-left: 15px;
    transition: color 0.3s ease;
}

.social-links a:hover {
    color: #7db1ff;
}

/* Responsive Design */
@media (max-width: 900px) {
    header .container {
        flex-direction: column;
        align-items: flex-start;
    }

    nav ul {
        flex-wrap: wrap;
        justify-content: flex-start;
    }
}

@media (max-width: 768px) {
    body {
        padding-top: 120px;
    }

    .hero {
        text-align: center;
    }

    .hero-content .container {
        padding: 90px 0 80px;
    }

    .hero-actions {
        justify-content: center;
    }

    .about-us .about-content,
    .global-reach .global-content {
        flex-direction: column;
    }

    .products-services .product-item,
    .products-services .product-item:nth-child(even) {
        flex-direction: column;
    }

    .products-services .product-item img,
    .products-services .product-item p {
        width: 100%;
    }

    .why-choose-us .features-grid,
    .applications .application-grid {
        grid-template-columns: 1fr;
    }

    footer .container {
        flex-direction: column;
    }

    .social-links {
        margin-top: 10px;
    }
}