/* BTL Website Styles - Modern, Responsive, No JS */

/* Burhanpur Textiles Limited - Modern Responsive Styles */
:root {
    --primary-blue: #1a355e;
    --secondary-blue: #2e4a7d;
    --white: #fff;
    --grey: #f4f6fa;
    --dark-grey: #444;
    --accent: #e0e7ef;
    --font-main: 'Montserrat', Arial, Helvetica, sans-serif;
}
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
body {
    font-family: var(--font-main);
    background: var(--grey);
    color: var(--dark-grey);
    line-height: 1.6;
}
header {
    background: var(--primary-blue);
    color: var(--white);
    position: sticky;
    top: 0;
    z-index: 100;
}
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}
.logo {
    font-size: 1.7rem;
    font-weight: 700;
    letter-spacing: 2px;
}
.nav-links {
    list-style: none;
    display: flex;
    gap: 2rem;
}
.nav-links a {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}
.nav-links a:hover {
    color: var(--accent);
}
.hero {
    background: var(--secondary-blue);
    color: var(--white);
    min-height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.hero-video-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    overflow: hidden;
}
.hero-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    top: 0;
    left: 0;
    opacity: 0.45;
    pointer-events: none;
}
section {
    padding: 3rem 1.5rem;
    max-width: 1100px;
    margin: 0 auto;
}
section h2 {
    color: var(--primary-blue);
    font-size: 2rem;
    margin-bottom: 1.2rem;
    font-weight: 700;
}
.about p {
    font-size: 1.1rem;
    margin-bottom: 0.7rem;
}
.products .product-list {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    justify-content: center;
}
.product-item {
    background: var(--accent);
    border-radius: 10px;
    padding: 1.5rem;
    flex: 1 1 220px;
    max-width: 220px;
    text-align: center;
    box-shadow: 0 2px 8px rgba(44, 62, 80, 0.07);
}
.product-item .icon {
    font-size: 2.2rem;
    margin-bottom: 0.7rem;
    display: block;
}
.sustain-list {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    justify-content: center;
}
.sustain-item {
    background: var(--accent);
    border-radius: 10px;
    padding: 1rem 1.2rem;
    flex: 1 1 180px;
    max-width: 180px;
    text-align: center;
    box-shadow: 0 2px 8px rgba(44, 62, 80, 0.07);
}
.sustain-item .icon {
    font-size: 1.7rem;
    margin-bottom: 0.5rem;
    display: block;
}
.strengths ul {
    list-style: disc inside;
    font-size: 1.1rem;
    margin-left: 1.2rem;
}
.contact-details p {
    margin-bottom: 0.5rem;
    font-size: 1.05rem;
}
footer {
    background: var(--primary-blue);
    color: var(--white);
    text-align: center;
    padding: 1.2rem 0 0.7rem 0;
    margin-top: 2rem;

    min-height: 350px
}
.footer-content p {
    margin-bottom: 0.3rem;
    font-size: 1rem;
}
.footer-address p {
    text-align: left;
}

@media (max-width: 900px) {
    .navbar {
        flex-direction: column;
        gap: 0.7rem;
        padding: 1rem;
    }
    .nav-links {
        gap: 1.2rem;
    }
    .hero h1 {
        font-size: 2rem;
    }
    section {
        padding: 2rem 0.7rem;
    }
    .products .product-list, .sustain-list {
        gap: 1rem;
    }
}
@media (max-width: 600px) {
    .navbar {
        flex-direction: column;
        padding: 0.7rem;
    }
    .logo {
        font-size: 1.2rem;
    }
    .nav-links {
        flex-direction: column;
        gap: 0.7rem;
    }
    .hero-content {
        padding: 1rem 0.5rem;
    }
    .hero h1 {
        font-size: 1.3rem;
    }
    section h2 {
        font-size: 1.3rem;
    }
    .product-item, .sustain-item {
        max-width: 100%;
        padding: 1rem 0.5rem;
    }
}
html {
    scroll-behavior: smooth;
}
    section {
        padding: 2rem 0.7rem;
    }
    .products .product-list, .sustain-list {
        gap: 1rem;
    }
}
@media (max-width: 600px) {
    .navbar {
        flex-direction: column;
        padding: 0.7rem;
    }
    .logo {
        font-size: 1.2rem;
    }
    .nav-links {
        flex-direction: column;
        gap: 0.7rem;
    }
    .hero-content {
        padding: 1rem 0.5rem;
    }
    .hero h1 {
        font-size: 1.3rem;
    }
    section h2 {
        font-size: 1.3rem;
    }
    .product-item, .sustain-item {
        max-width: 100%;
        padding: 1rem 0.5rem;
    }
}
html {
    scroll-behavior: smooth;
}