/* Global Styles */
:root {
    --primary-color: #0077b6;
    --secondary-color: #00b4d8;
    --accent-color: #90e0ef;
    --text-color: #333;
    --light-text: #666;
    --white: #ffffff;
    --bg-light: #f4f9fc;
    --bg-dark: #023e8a;
    --transition: all 0.3s ease;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

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

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

.section {
    padding: 80px 0;
}

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

.bg-dark {
    background-color: var(--bg-dark);
    color: var(--white);
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 30px;
    font-weight: 500;
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
}

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

.btn-primary:hover {
    background-color: var(--secondary-color);
    transform: translateY(-2px);
}

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

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

/* Header & Navbar */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: transparent;
    transition: var(--transition);
    padding: 20px 0;
}

header.scrolled {
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow);
    padding: 10px 0;
}

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

.logo a {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
}

header.scrolled .logo a {
    color: var(--primary-color);
}

.logo img {
    height: 40px;
    border-radius: 50%;
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-links a {
    color: var(--white);
    font-weight: 500;
    position: relative;
}

header.scrolled .nav-links a {
    color: var(--text-color);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--secondary-color);
    transition: var(--transition);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.hamburger {
    display: none;
    color: var(--white);
    font-size: 1.5rem;
    cursor: pointer;
}

header.scrolled .hamburger {
    color: var(--text-color);
}

/* Hero Section */
#hero {
    height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Section Titles */
.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.section-title p {
    color: var(--light-text);
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* About Section */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.about-text h3 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: var(--text-color);
}

.about-text p {
    margin-bottom: 20px;
    color: var(--light-text);
}

.features-list li {
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.features-list i {
    color: var(--secondary-color);
}

.about-image {
    height: 400px;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

/* Products Section */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.product-card {
    background: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    text-align: center;
    padding-bottom: 30px;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.15);
}

.product-img {
    height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #f9f9f9;
    padding: 20px;
}

.product-img img {
    max-height: 100%;
    width: auto;
    transition: var(--transition);
}

.product-card:hover .product-img img {
    transform: scale(1.05);
}

.product-info {
    padding: 20px;
}

.product-info h3 {
    margin-bottom: 10px;
    color: var(--primary-color);
}

.product-info p {
    color: var(--light-text);
    margin-bottom: 20px;
    font-size: 0.9rem;
}

/* Quality Section */
.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    text-align: center;
}

.step-item {
    padding: 30px;
    border-radius: 10px;
    background: var(--white);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.step-item:hover {
    transform: translateY(-5px);
}

.step-icon {
    width: 80px;
    height: 80px;
    background-color: var(--bg-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: var(--primary-color);
    font-size: 2rem;
}

.step-item h4 {
    margin-bottom: 10px;
    color: var(--text-color);
}

.step-item p {
    color: var(--light-text);
    font-size: 0.9rem;
}

/* Contact Section */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.contact-info h2 {
    color: var(--white);
    margin-bottom: 20px;
}

.contact-info p {
    color: #ccc;
    margin-bottom: 40px;
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 30px;
}

.info-item i {
    width: 50px;
    height: 50px;
    background-color: rgba(255,255,255,0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-color);
    font-size: 1.2rem;
}

.info-item h4 {
    color: var(--white);
    margin-bottom: 5px;
}

.info-item p {
    color: #ccc;
    margin-bottom: 0;
}

.contact-form-container {
    background: var(--white);
    padding: 40px;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.contact-form h3 {
    color: var(--text-color);
    margin-bottom: 30px;
    text-align: center;
}

.form-group {
    margin-bottom: 20px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-family: inherit;
    transition: var(--transition);
}

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

.contact-form button {
    width: 100%;
    border: none;
    font-size: 1rem;
}

/* Footer */
footer {
    background-color: #012a5e;
    color: var(--white);
    padding-top: 60px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-logo h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
}

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

.footer-links a {
    color: #ccc;
    margin-left: 20px;
    transition: var(--transition);
}

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

.footer-bottom {
    padding: 20px 0;
    text-align: center;
    color: #888;
    font-size: 0.9rem;
}

.footer-bottom a {
    color: #888;
}

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

/* Animations */
.fade-in-up, .fade-in-left, .fade-in-right {
    opacity: 0;
    transition: all 0.8s ease;
}

.fade-in-up {
    transform: translateY(30px);
}

.fade-in-left {
    transform: translateX(-30px);
}

.fade-in-right {
    transform: translateX(30px);
}

.visible {
    opacity: 1;
    transform: translate(0);
}

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

/* Responsive */
@media (max-width: 768px) {
    .header-container {
        padding: 0 20px;
    }

    .hamburger {
        display: block;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        height: 100vh;
        background-color: var(--white);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transition: var(--transition);
        box-shadow: -5px 0 10px rgba(0,0,0,0.1);
    }

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

    .nav-links a {
        color: var(--text-color);
        font-size: 1.2rem;
    }

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

    .about-content,
    .contact-wrapper {
        grid-template-columns: 1fr;
    }

    .about-image {
        order: -1;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: 30px;
    }

    .footer-links a {
        margin: 0 10px;
    }
}