/* 
 * Hemant Engineering Works - Main Stylesheet
 * Professional industrial design with blue/grey color scheme
 * Mobile-first responsive design
 */

/* CSS Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #0056b3;
    --primary-dark: #004494;
    --secondary-color: #4a5568;
    --accent-color: #2d3748;
    --light-color: #f8f9fa;
    --light-gray: #e2e8f0;
    --medium-gray: #cbd5e0;
    --dark-gray: #718096;
    --white: #ffffff;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
    --border-radius: 4px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    color: var(--secondary-color);
    background-color: var(--white);
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    line-height: 1.3;
    color: var(--accent-color);
}

a {
    text-decoration: none;
    color: var(--primary-color);
    transition: var(--transition);
}

a:hover {
    color: var(--primary-dark);
}

img {
    max-width: 100%;
    height: auto;
}

ul {
    list-style: none;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 16px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-family: 'Montserrat', sans-serif;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    color: var(--white);
    transform: translateY(-3px);
    box-shadow: var(--shadow);
}

.btn-secondary {
    background-color: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}

.btn-secondary:hover {
    background-color: var(--white);
    color: var(--primary-color);
    transform: translateY(-3px);
}

.section {
    padding: 80px 0;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 15px;
    text-align: center;
    position: relative;
}

.section-title:after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background-color: var(--primary-color);
}

.section-subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: var(--dark-gray);
    margin-bottom: 50px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow);
    z-index: 1000;
    padding: 15px 0;
}

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

.logo {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.logo-text {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: 1.8rem;
    color: var(--primary-color);
    line-height: 1;
}

.logo-subtext {
    font-family: 'Montserrat', sans-serif;
    font-size: 0.7rem;
    color: var(--secondary-color);
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-top: 2px;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--primary-color);
    cursor: pointer;
    padding: 5px;
}

.nav-menu {
    display: flex;
}

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

.nav-link {
    font-family: 'Montserrat', sans-serif;
    font-weight: 500;
    font-size: 1rem;
    color: var(--accent-color);
    position: relative;
    padding: 5px 0;
}

.nav-link:hover, .nav-link.active {
    color: var(--primary-color);
}

.nav-link.active:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary-color);
}

/* Hero Slideshow */
.hero {
    position: relative;
    height: 100vh;
    max-height: 800px;
    overflow: hidden;
    margin-top: 70px;
}

.slideshow-container {
    position: relative;
    width: 100%;
    height: 100%;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease-in-out;
    z-index: 1;
}

.slide.active {
    opacity: 1;
    z-index: 2;
}

.slide-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.slide-image:after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.5));
}

.slide-content {
    position: relative;
    z-index: 3;
    height: 100%;
    display: flex;
    align-items: center;
    color: var(--white);
    text-align: center;
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: 20px;
    color: var(--white);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.hero-subtitle {
    font-size: 1.8rem;
    margin-bottom: 25px;
    color: var(--light-gray);
    text-shadow: 0 2px 5px rgba(0, 0, 0, 0.5);
}

.hero-description {
    font-size: 1.3rem;
    max-width: 800px;
    margin: 0 auto 40px;
    color: var(--light-gray);
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
}

.slideshow-controls {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    transform: translateY(-50%);
    z-index: 10;
    display: flex;
    justify-content: space-between;
    padding: 0 20px;
}

.slide-prev, .slide-next {
    background-color: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.slide-prev:hover, .slide-next:hover {
    background-color: rgba(255, 255, 255, 0.4);
}

.slideshow-dots {
    position: absolute;
    bottom: 30px;
    left: 0;
    right: 0;
    z-index: 10;
    display: flex;
    justify-content: center;
    gap: 15px;
}

.dot {
    width: 15px;
    height: 15px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: var(--transition);
}

.dot.active, .dot:hover {
    background-color: var(--white);
}

/* Intro Section */
.intro-content {
    max-width: 900px;
    margin: 0 auto 60px;
    font-size: 1.1rem;
    line-height: 1.8;
}

.intro-content p {
    margin-bottom: 20px;
}

.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.stat-item {
    text-align: center;
    padding: 30px 20px;
    background-color: var(--light-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.stat-item:hover {
    transform: translateY(-10px);
}

.stat-number {
    font-family: 'Montserrat', sans-serif;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.stat-text {
    font-size: 1.1rem;
    color: var(--accent-color);
    font-weight: 500;
}

/* Services Section */
.services-section {
    background-color: var(--light-color);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.service-card {
    background-color: var(--white);
    border-radius: var(--border-radius);
    padding: 40px 30px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    text-align: center;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.service-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.service-title {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.service-description {
    color: var(--dark-gray);
    line-height: 1.7;
}

/* Products Section */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.product-card {
    background-color: var(--white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.product-image {
    height: 200px;
    background-color: var(--light-gray);
    display: flex;
    align-items: center;
    justify-content: center;
}

.image-placeholder {
    text-align: center;
    color: var(--primary-color);
}

.image-placeholder i {
    font-size: 4rem;
    margin-bottom: 15px;
}

.image-placeholder span {
    display: block;
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    font-size: 1.2rem;
}

.image-placeholder.large i {
    font-size: 6rem;
}

.product-content {
    padding: 25px;
}

.product-title {
    font-size: 1.4rem;
    margin-bottom: 10px;
}

.product-description {
    color: var(--dark-gray);
    line-height: 1.7;
}

/* CTA Section */
.cta-section {
    background: linear-gradient(to right, var(--primary-color), var(--primary-dark));
    color: var(--white);
    padding: 100px 0;
    text-align: center;
}

.cta-title {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: var(--white);
}

.cta-description {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto 40px;
    color: var(--light-gray);
}

/* Page Header */
.page-header {
    background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('https://images.unsplash.com/photo-1558618666-fcd25c85cd64?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=2070&q=80');
    background-size: cover;
    background-position: center;
    color: var(--white);
    padding: 150px 0 80px;
    text-align: center;
    margin-top: 70px;
}

.page-title {
    font-size: 3rem;
    margin-bottom: 15px;
    color: var(--white);
}

.page-subtitle {
    font-size: 1.5rem;
    color: var(--light-gray);
}

/* About Page */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
    margin-bottom: 80px;
}

.about-text p {
    margin-bottom: 20px;
    font-size: 1.1rem;
    line-height: 1.8;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.value-card {
    background-color: var(--white);
    border-radius: var(--border-radius);
    padding: 40px 30px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    text-align: center;
}

.value-card:hover {
    transform: translateY(-10px);
}

.value-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.value-title {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.value-description {
    color: var(--dark-gray);
    line-height: 1.7;
}

.industries-content {
    margin-top: 50px;
}

.industry-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid var(--light-gray);
}

.industry-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.industry-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-right: 25px;
    flex-shrink: 0;
}

.industry-text h3 {
    font-size: 1.8rem;
    margin-bottom: 15px;
}

.industry-text p {
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--dark-gray);
}

/* Contact Page */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
    margin-top: 30px;
}

.contact-description {
    font-size: 1.1rem;
    margin-bottom: 40px;
    line-height: 1.7;
}

.contact-details {
    margin-top: 40px;
}

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

.contact-icon {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-right: 20px;
    flex-shrink: 0;
    margin-top: 5px;
}

.contact-text h3 {
    font-size: 1.3rem;
    margin-bottom: 8px;
}

.contact-text p {
    color: var(--dark-gray);
    line-height: 1.7;
}

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

.contact-form .section-title {
    text-align: left;
    margin-bottom: 30px;
}

.contact-form .section-title:after {
    left: 0;
    transform: none;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--accent-color);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--medium-gray);
    border-radius: var(--border-radius);
    font-family: 'Roboto', sans-serif;
    font-size: 16px;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 86, 179, 0.1);
}

.error-message {
    color: #e53e3e;
    font-size: 0.9rem;
    margin-top: 5px;
    min-height: 20px;
}

.success-message {
    background-color: #c6f6d5;
    color: #22543d;
    padding: 15px;
    border-radius: var(--border-radius);
    margin-top: 20px;
    text-align: center;
    font-weight: 500;
    display: none;
}

.map-section {
    padding-top: 0;
}

.map-container {
    margin-top: 50px;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.map-placeholder {
    height: 400px;
    background: linear-gradient(rgba(0, 0, 0, 0.8), rgba(0, 0, 0, 0.8)), url('https://images.unsplash.com/photo-1569336415962-a4bd9f69cd83?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=2031&q=80');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
}

.map-content {
    text-align: center;
    max-width: 600px;
    padding: 30px;
}

.map-content i {
    font-size: 4rem;
    margin-bottom: 20px;
    color: var(--white);
}

.map-content h3 {
    font-size: 2rem;
    margin-bottom: 15px;
    color: var(--white);
}

.map-content p {
    font-size: 1.1rem;
    margin-bottom: 25px;
    color: var(--light-gray);
}

.map-address {
    background-color: rgba(255, 255, 255, 0.1);
    padding: 20px;
    border-radius: var(--border-radius);
    text-align: left;
}

.map-address p {
    margin-bottom: 8px;
    font-size: 1rem;
}

/* Footer */
.footer {
    background-color: var(--accent-color);
    color: var(--light-gray);
    padding: 70px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 50px;
}

.footer-title {
    font-size: 1.5rem;
    color: var(--white);
    margin-bottom: 25px;
    position: relative;
    padding-bottom: 10px;
}

.footer-title:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 2px;
    background-color: var(--primary-color);
}

.footer-text {
    line-height: 1.7;
    margin-bottom: 25px;
}

.footer-info {
    margin-top: 20px;
}

.footer-info p {
    margin-bottom: 15px;
    display: flex;
    align-items: flex-start;
}

.footer-info i {
    margin-right: 10px;
    color: var(--primary-color);
    margin-top: 5px;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: var(--light-gray);
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary-color);
    padding-left: 5px;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.9rem;
    color: var(--dark-gray);
}

/* Responsive Styles */
@media (max-width: 992px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 2.2rem;
    }
    
    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .hero {
        max-height: 700px;
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: block;
    }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        left: 0;
        width: 100%;
        background-color: var(--white);
        box-shadow: var(--shadow);
        flex-direction: column;
        padding: 20px;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-list {
        flex-direction: column;
        gap: 0;
    }
    
    .nav-link {
        display: block;
        padding: 15px 0;
        border-bottom: 1px solid var(--light-gray);
    }
    
    .nav-link:last-child {
        border-bottom: none;
    }
    
    .hero {
        padding: 0;
        max-height: 600px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .section {
        padding: 60px 0;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .services-grid,
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .slideshow-controls {
        display: none;
    }
    
    .contact-form-container {
        padding: 30px 25px;
    }
    
    .slide-content .container {
        padding: 0 30px;
    }
}

@media (max-width: 576px) {
    .hero-title {
        font-size: 1.8rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 15px;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .stats {
        grid-template-columns: 1fr 1fr;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .stat-text {
        font-size: 1rem;
    }
    
    .hero {
        max-height: 500px;
    }
}