:root {
    --primary: #0B3C26;       /* Deep Forest Green from the logo header banner */
    --secondary: #1E5138;     /* Mid-tone Organic Leaf Green */
    --accent: #AACC00;        /* Vibrant Bio-Lime accent tint */
    --bg-light: #FFFFFF;      /* Pure White for clean, readable card backdrops */
    --bg-page: #F3F7F5;       /* Lively, ultra-fresh mint-tinted canvas background */
    --text-dark: #1A1C23;     /* Sleek Dark Charcoal for sharp typography readability */
    --white: #FFFFFF;
    --shadow: rgba(11, 60, 38, 0.05);
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

/* --- GLOBAL CORE RESETS --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
}
body {
    font-family: 'Inter', sans-serif;
    color: var(--text-dark);
    background-color: var(--white);
    line-height: 1.6;
}
img {
    max-width: 100%;
    display: block;
    height: auto;
}
main {
    overflow-x: hidden;
}
h1, h2, h3, h4 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
}
ul {
    list-style: none;
}
a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

/* --- HEADER & NAVIGATION LOGO ALIGNMENT --- */
header {
    background-color: var(--white);
    box-shadow: 0 2px 15px var(--shadow);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}
.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    gap: 25px; /* Protects alignment layout on tight laptop screens */
}
.logo-box {
    display: flex;
    flex-direction: column;
}
.logo-branding-wrap {
    display: flex;
    align-items: center;
    gap: 12px;
}
.logo-branding-wrap img {
    width: 42px;
    height: 42px;
    object-fit: cover;
    border-radius: 50%;
    border: 2px solid var(--accent);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
}
.brand-name {
    font-size: 17px;       /* Fine-tuned perfectly for Enturi Bio Polymers Pvt Ltd */
    color: var(--primary);
    letter-spacing: 0.3px;
    line-height: 1.1;
    display: block;        /* Forces line break allocation */
    white-space: nowrap;   /* Ensures brand stays visually unified */
}
.brand-tagline {
    font-size: 9px;
    text-transform: uppercase;
    color: var(--secondary);
    font-weight: 600;
    letter-spacing: 0.5px;
    margin-top: 4px;
    display: block;        /* Pushes tagline below the core header name string */
}
.nav-menu {
    display: flex;
    align-items: center;
    gap: 22px;
}
.nav-link {
    font-weight: 600;
    font-size: 14px;
    color: var(--text-dark);
}
.nav-link:hover, .nav-link.active {
    color: var(--primary);
}
.btn-quote-nav {
    background-color: var(--primary);
    color: var(--white);
    padding: 10px 18px;
    border-radius: 4px;
    font-weight: 600;
    font-size: 13px;
    white-space: nowrap; 
    flex-shrink: 0;      
}
.btn-quote-nav:hover {
    background-color: var(--secondary);
}

/* --- HERO COMPONENT WITH BRAND GRADIENT --- */
.hero {
    background: linear-gradient(180deg, #104C32 0%, #1B5E3F 60%, #2A7552 100%);
    padding: 180px 20px 120px;
    color: var(--white);
    text-align: center;
}
.hero-inner {
    max-width: 900px;
    margin: 0 auto;
}
.hero h1 {
    font-size: 46px;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 1px;
    line-height: 1.2;
}
.hero-highlight {
    color: var(--accent);
}
.hero p {
    font-size: 18px;
    margin-bottom: 35px;
    font-weight: 300;
    color: #E2E8F0;
}
.hero-badges {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 30px;
    flex-wrap: wrap;
}
.badge-item {
    background: rgba(255, 255, 255, 0.15);
    padding: 8px 18px;
    border-radius: 20px;
    font-size: 12px;
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 0.5px;
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255,255,255,0.1);
}

/* --- REUSABLE SECTION WRAPPERS --- */
section {
    padding: 90px 20px;
}
.section-title {
    text-align: center;
    font-size: 32px;
    color: var(--primary);
    margin-bottom: 15px;
}
.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background-color: var(--accent);
    margin: 12px auto 0;
    border-radius: 2px;
}
.section-subtitle {
    text-align: center;
    color: var(--secondary);
    font-size: 16px;
    margin-bottom: 60px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* --- CORPORATE PROFILE --- */
#about {
    background-color: var(--white);
}
.about-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 50px;
    align-items: center;
}
.about-text h3 {
    color: var(--secondary);
    font-size: 24px;
    margin-bottom: 15px;
}
.about-text p {
    color: #4A5568;
    margin-bottom: 20px;
}
.launch-card {
    background-color: var(--bg-page);
    border-left: 5px solid var(--primary);
    padding: 25px;
    margin-top: 30px;
    border-radius: 0 8px 8px 0;
    box-shadow: 0 4px 12px rgba(0,0,0,0.02);
}
.launch-title {
    font-weight: 700;
    font-size: 13px;
    text-transform: uppercase;
    color: var(--primary);
    margin-bottom: 8px;
    letter-spacing: 0.5px;
}
.about-image {
    border-radius: 12px; 
    overflow: hidden;
    box-shadow: 0 8px 24px var(--shadow);
}
.about-image img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}

/* --- CLOSED-LOOP LIFECYCLE --- */
.lifecycle {
    background-color: var(--bg-page);
}
.lifecycle-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}
.lifecycle-graphic-image-box {
    border-radius: 14px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(11, 60, 38, 0.05);
    border: 1px solid #E2E8F0;
    background-color: var(--white);
}
.lifecycle-graphic-image-box img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}
.lifecycle-steps {
    display: flex;
    flex-direction: column;
    gap: 18px;
}
.step-block {
    background: var(--white);
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.02);
    border-left: 4px solid var(--accent);
    transition: var(--transition);
}
.step-block:hover {
    transform: translateX(5px);
    border-left-color: var(--primary);
}
.step-block h4 {
    color: var(--primary);
    margin-bottom: 6px;
    font-size: 18px;
}
.step-block p {
    font-size: 14px;
    color: #4A5568;
}

/* --- INDUSTRIAL INFRASTRUCTURE --- */
.machinery-section {
    background-color: var(--white);
}
.machinery-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}
.machine-card {
    background: var(--white);
    border-radius: 8px;
    box-shadow: 0 8px 25px var(--shadow);
    overflow: hidden;
    border-top: 4px solid var(--secondary);
    transition: var(--transition);
}
.machine-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 35px rgba(0,0,0,0.08);
}
.machine-img-box {
    height: 260px;
    background-color: #E2E8F0;
    overflow: hidden;
}
.machine-img-box img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.machine-info {
    padding: 25px;
}
.machine-step-tag {
    font-size: 11px;
    font-weight: 700;
    color: var(--secondary);
    text-transform: uppercase;
    margin-bottom: 8px;
    display: block;
    letter-spacing: 0.5px;
}
.machine-info h3 {
    font-size: 19px;
    margin-bottom: 12px;
    color: var(--primary);
}
.machine-info p {
    font-size: 14px;
    color: #4A5568;
}

/* --- PRODUCT SHOWROOM & ADVANTAGE BANNER --- */
.products {
    background-color: var(--bg-page);
}
.customization-banner {
    max-width: 1200px;
    margin: 0 auto 50px;
    background: linear-gradient(135deg, var(--primary) 0%, #154F35 100%);
    padding: 40px;
    border-radius: 12px;
    color: var(--white);
    box-shadow: 0 6px 20px rgba(11,60,38,0.15);
    display: block; 
}
.banner-badge {
    display: inline-block;
    background-color: var(--accent);
    color: var(--primary);
    font-weight: 700;
    font-size: 12px;
    padding: 5px 14px;
    border-radius: 4px;
    text-transform: uppercase;
    margin-bottom: 15px;
    letter-spacing: 0.5px;
}
.customization-text h3 {
    font-size: 28px;
    margin-bottom: 15px;
}
.customization-text p {
    color: #E2E8F0;
    font-size: 16px;
    line-height: 1.7;
    margin-bottom: 20px;
}
.customization-list {
    color: #AACC00; 
    font-weight: 600; 
    font-size: 15px; 
    display: flex; 
    flex-direction: column; 
    gap: 10px; 
    list-style: none; 
    margin-top: 15px;
}

.product-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}
.product-card {
    background: var(--white);
    padding: 35px 20px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
    border: 1px solid #E2E8F0;
    transition: var(--transition);
}
.product-card.main-focus {
    border: 1.5px dashed var(--secondary);
}
.product-card:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
    box-shadow: 0 10px 25px rgba(11,60,38,0.08);
}
.product-icon {
    font-size: 40px;
    margin-bottom: 15px;
}
.product-card h3 {
    font-size: 17px;
    color: var(--primary);
    margin-bottom: 12px;
}
.product-card p {
    font-size: 13px;
    color: #656E7B;
}

/* --- CONTACT SECTION & MAP VIEW LAYOUT --- */
.contact-section {
    background-color: var(--white);
}
.contact-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 40px;
    align-items: start;
}
.visiting-card-display, .contact-form-box {
    background: var(--bg-page);
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.03);
    border: 1px solid #E2E8F0;
}
.visiting-card-display h3, .contact-form-box h3 {
    color: var(--primary);
    margin-bottom: 25px;
    font-size: 22px;
    border-bottom: 2px solid var(--white);
    padding-bottom: 10px;
}
.card-wrapper {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    margin-bottom: 25px;
    border: 1px solid #E2E8F0;
}
.card-wrapper img {
    width: 100%;
    height: auto;
    display: block;
}
.card-details-list p {
    margin-bottom: 12px;
    font-size: 15px;
    color: #4A5568;
}
.contact-link {
    color: var(--secondary);
    font-weight: 600;
}
.contact-link:hover {
    color: var(--primary);
    text-decoration: underline;
}
.direct-contact-placeholders {
    margin-top: 20px;
    padding-bottom: 20px;
    border-bottom: 1px dashed #CBD5E1;
}
.plant-map-box {
    margin-top: 25px;
}
.plant-map-box h4 {
    font-size: 15px;
    color: var(--secondary);
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.map-iframe-container {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
    background: #E2E8F0;
}
.simple-contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}
.form-group {
    display: flex;
    flex-direction: column;
}
label {
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--secondary);
}
input, textarea {
    padding: 14px;
    border: 1px solid #CBD5E1;
    border-radius: 4px;
    font-family: inherit;
    font-size: 14px;
    color: var(--text-dark);
    background: var(--white);
    transition: var(--transition);
}
input:focus, textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(11,60,38,0.08);
}
.btn-submit {
    background-color: #25D366; 
    color: var(--white);
    border: none;
    padding: 16px 32px;
    font-size: 16px;
    font-weight: 700;
    border-radius: 4px;
    cursor: pointer;
    width: 100%;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.2);
    transition: var(--transition);
}
.btn-submit:hover {
    background-color: #1BD741;
    transform: translateY(-2px);
    box-shadow: 0 6px 166px rgba(37, 211, 102, 0.3);
}

/* --- FOOTER COMPLIANCE MATRIX --- */
footer {
    background-color: var(--primary);
    color: var(--white);
    padding: 60px 20px 25px;
    font-size: 14px;
}
.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 50px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    padding-bottom: 40px;
    margin-bottom: 25px;
}
.footer-brand p {
    color: #CBD5E1;
    font-size: 14px;
    margin-top: 10px;
    line-height: 1.7;
}
.footer-compliance-box {
    background: rgba(255,255,255,0.05);
    padding: 20px;
    border-radius: 6px;
    margin-top: 20px;
    font-size: 12px;
    line-height: 1.6;
    border-left: 4px solid var(--accent);
}
.footer-links h4, .footer-contact h4 {
    color: var(--accent);
    margin-bottom: 20px;
    text-transform: uppercase;
    font-size: 13px;
    letter-spacing: 0.5px;
}
.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.footer-links a:hover {
    color: var(--accent);
}
.footer-contact p {
    color: #CBD5E1;
    line-height: 1.7;
}
.copyright-bar {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: #A0AEC0;
}

/* ==================================
   RESPONSIVE BREAKPOINTS & COHESION
   ================================== */
@media (max-width: 1024px) {
    .nav-container {
        gap: 15px;
    }
    .brand-name {
        font-size: 15px;
    }
    .about-grid, .lifecycle-container, .contact-container, .customization-banner {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    .machinery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .footer-container {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
    .nav-menu {
        flex-wrap: wrap;
        justify-content: center;
        gap: 12px;
    }
    .hero {
        padding: 150px 20px 90px;
    }
    .hero h1 {
        font-size: 32px;
    }
    .machinery-grid, .product-grid {
        grid-template-columns: 1fr;
    }
    .section-title {
        font-size: 28px;
    }
    .visiting-card-display, .contact-form-box {
        padding: 30px 20px;
    }
    .copyright-bar {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .brand-name { font-size: 13px; }
    .hero h1 { font-size: 26px; }
    .section-title { font-size: 24px; }
}