/* --- GLOBAL STYLES --- */
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: 'Hind Siliguri', 'Inter', 'Outfit', sans-serif;
    line-height: 1.7;
    color: var(--text-main);
    background-color: var(--bg);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul { list-style: none; }
img { max-width: 100%; display: block; }
.container { width: 92%; max-width: 1300px; margin: 0 auto; }

/* --- HEADER & NAVIGATION --- */
.main-header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 1rem 0;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}
.header-container { display: flex; justify-content: space-between; align-items: center; }
.logo img { height: 50px; width: auto; }

.nav-menu ul { display: flex; gap: 2rem; align-items: center; }
.nav-menu ul li a {
    font-weight: 600;
    color: var(--secondary);
    font-size: 0.9rem;
    letter-spacing: 0.3px;
    position: relative;
}
.nav-menu ul li a::after {
    content: ''; position: absolute; bottom: -5px; left: 0; width: 0; height: 2px;
    background: var(--primary); transition: var(--transition);
}
.nav-menu ul li a:hover::after { width: 100%; }

.mobile-toggle {
    display: none;
    font-size: 1.5rem;
    color: var(--secondary);
    cursor: pointer;
}

.btn-lang {
    background: var(--accent);
    padding: 0.6rem 1.2rem;
    border-radius: var(--radius-md);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--secondary) !important;
}

/* --- HERO SECTION --- */
.hero {
    position: relative;
    padding: 12rem 0;
    background: linear-gradient(rgba(10, 25, 47, 0.85), rgba(10, 25, 47, 0.7)), url('../images/hero-bg.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    color: var(--white);
    text-align: left;
}
.hero-content { max-width: 800px; position: relative; z-index: 2; }
.hero-content h2 {
    font-size: 4.5rem; font-weight: 900; line-height: 1.1; margin-bottom: 1.5rem;
    letter-spacing: -2px; text-transform: capitalize;
}
.hero-content p { font-size: 1.25rem; margin-bottom: 2.5rem; opacity: 0.9; max-width: 600px; }

/* --- SECTION TITLES --- */
.section-title {
    text-align: left; margin: 6rem 0 3rem;
    display: flex; justify-content: space-between; align-items: flex-end;
}
.section-title h2 { font-size: 2.8rem; font-weight: 800; color: var(--secondary); letter-spacing: -1px; }
.section-title span {
    color: var(--primary); font-size: 0.9rem; font-weight: 800;
    text-transform: uppercase; letter-spacing: 3px; display: block; margin-bottom: 0.5rem;
}

/* --- ABOUT US SECTION --- */
.about-section { padding: 8rem 0; background: var(--white); }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; align-items: center; }
.about-image { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg); }
.about-content h2 { font-size: 3rem; color: var(--secondary); margin: 1rem 0 1.5rem; line-height: 1.2; }
.about-content p { font-size: 1.1rem; color: var(--text-muted); margin-bottom: 2rem; }

/* --- PRODUCTS GRID --- */
.products-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(350px, 1fr)); gap: 2.5rem; margin-bottom: 6rem; }
.product-card {
    background: var(--card-bg); border-radius: var(--radius-lg); overflow: hidden;
    box-shadow: var(--shadow-sm); transition: var(--transition); border: 1px solid rgba(0,0,0,0.03);
}
.product-card:hover { transform: translateY(-12px); box-shadow: var(--shadow-lg); }
.product-image { height: 280px; overflow: hidden; }
.product-image img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
.product-card:hover .product-image img { transform: scale(1.1); }
.product-info { padding: 2rem; }
.category-tag {
    background: var(--accent); color: var(--secondary); padding: 0.3rem 0.8rem;
    border-radius: 50px; font-size: 0.7rem; font-weight: 800; text-transform: uppercase; margin-bottom: 1rem; display: inline-block;
}
.product-info h3 { font-size: 1.5rem; margin-bottom: 0.8rem; font-weight: 700; }
.product-info p { color: var(--text-muted); font-size: 1rem; margin-bottom: 1.5rem; }
.btn-text { font-weight: 800; font-size: 0.85rem; color: var(--secondary); display: flex; align-items: center; gap: 0.5rem; }

/* --- CONTACT SECTION --- */
.contact-section { padding: 8rem 0; background: var(--accent); }
.contact-grid { display: grid; grid-template-columns: 1fr; gap: 2rem; max-width: 900px; margin: 0 auto; }
.contact-card { background: var(--white); padding: 3rem; border-radius: var(--radius-lg); box-shadow: var(--shadow-md); display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 2rem; }
.contact-item { display: flex; gap: 1.5rem; }
.contact-item i { width: 50px; height: 50px; background: var(--accent); color: var(--primary); display: flex; align-items: center; justify-content: center; border-radius: 12px; }

/* --- FOOTER --- */
.main-footer { background: var(--secondary); color: var(--white); padding: 6rem 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1.5fr; gap: 4rem; padding-bottom: 4rem; }
.footer-info h3 { font-size: 2rem; margin-bottom: 1rem; color: var(--primary); }
.footer-contact h3 { font-size: 1.5rem; margin-bottom: 1.5rem; color: var(--primary); }
.footer-contact p { display: flex; align-items: center; gap: 1rem; margin-bottom: 1rem; opacity: 0.8; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.05); padding: 2rem 0; text-align: center; opacity: 0.5; }

/* Social Links Footer UI */
.social-links { display: flex; gap: 1rem; margin-top: 2rem; }
.social-links a {
    width: 45px;
    height: 45px;
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 1.1rem;
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.05);
}
.social-links a:hover {
    background: var(--primary);
    color: var(--secondary);
    transform: translateY(-5px);
}

/* --- RESPONSIVE LOGIC --- */
@media (max-width: 992px) {
    .mobile-toggle { display: block; }
    .nav-menu {
        display: none; position: absolute; top: 100%; left: 0; width: 100%;
        background: var(--white); padding: 2rem; box-shadow: var(--shadow-lg); z-index: 1000;
    }
    .nav-menu.active { display: block; }
    .nav-menu ul { flex-direction: column; gap: 1.5rem; align-items: flex-start; }
    
    .hero-content h2 { font-size: 3rem; }
    .about-grid, .contact-grid, .footer-grid { grid-template-columns: 1fr; gap: 3rem; }
}