/* 
 * SealShift - Modern Website Styles
 * A clean and professional design for an inflatable seals company
 */

/* --------------------- */
/* CSS Reset & Base Styles */
/* --------------------- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
/* Related Content Section Styles */
.related-content {
    padding: 5rem 0;
    background-color: var(--light-gray-color);
}

.related-content h2 {
    text-align: center;
    margin-bottom: 3rem;
    color: var(--primary-color);
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.related-item {
    background-color: #fff;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.related-item h3 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-size: 1.4rem;
}

.related-item ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.related-item ul li {
    margin-bottom: 0.8rem;
}

.related-item ul li a {
    color: var(--text-color);
    text-decoration: none;
    transition: color 0.3s;
    display: flex;
    align-items: center;
}

.related-item ul li a:hover {
    color: var(--primary-color);
}

.related-item ul li a:before {
    content: '\2192';
    margin-right: 0.5rem;
    color: var(--primary-color);
}
:root {
    --primary-color: #0066cc;
    --secondary-color: #004999;
    --accent-color: #00aaff;
    --light-color: #f5f9ff;
    --dark-color: #1a2b3c;
    --gray-color: #f0f3f8;
    --text-color: #333;
    --text-light: #777;
    --border-radius: 8px;
    --box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

html {
    font-size: 62.5%; /* 10px = 1rem */
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    font-size: 1.6rem;
    line-height: 1.6;
    color: var(--text-color);
    background-color: #fff;
    overflow-x: hidden;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

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

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

a:hover {
    color: var(--secondary-color);
}

ul {
    list-style: none;
}

.section-title {
    font-size: 3.2rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: 5rem;
    position: relative;
    color: var(--dark-color);
}

.section-title:after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background-color: var(--primary-color);
    border-radius: 2px;
}

/* --------------------- */
/* Buttons */
/* --------------------- */
.btn {
    display: inline-block;
    padding: 1.2rem 2.8rem;
    border-radius: var(--border-radius);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    font-size: 1.6rem;
}

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

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

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

.secondary-btn:hover {

    color: var(--light-color);
    transform: translateY(-3px);
    box-shadow: var(--box-shadow);
}

/* --------------------- */
/* Header & Navigation */
/* --------------------- */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: white;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
}

header.scrolled {
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem 0;
    transition: var(--transition);
}

.logo h1 {
    font-size: 2.8rem;
    font-weight: 700;
    color: var(--dark-color);
}

.logo span {
    color: var(--primary-color);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 3rem;
}

.nav-links a {
    color: var(--text-color);
    font-weight: 500;
    font-size: 1.6rem;
    position: relative;
}

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

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

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

/* Dropdown menu styling */
.nav-links .dropdown {
    position: relative;
}

.nav-links .dropdown-content {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: white;
    min-width: 220px;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
    border-radius: var(--border-radius);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s ease;
    z-index: 1;
    padding: 1rem 0;
}

.nav-links .dropdown:hover .dropdown-content {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.nav-links .dropdown-content li {
    padding: 0;
}

.nav-links .dropdown-content a {
    display: block;
    padding: 1rem 2rem;
    font-size: 1.5rem;
    color: var(--text-color);
    transition: all 0.2s ease;
}

.nav-links .dropdown-content a:hover {
    background-color: var(--light-color);
    color: var(--primary-color);
}

.nav-links .dropdown-content a:after {
    display: none;
}

.hamburger {
    display: none;
    cursor: pointer;
}

.hamburger span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--dark-color);
    margin: 5px 0;
    transition: var(--transition);
}

/* --------------------- */
/* Hero Section */
/* --------------------- */
/* Hero Section */
.hero {
    position: relative;
    padding: 18rem 0 10rem;
    background: linear-gradient(135deg, rgba(248, 252, 255, 0.0) 0%, rgba(230, 244, 255, 0.3) 100%), url('../images/hero-background.webp');
    background-size: cover;
    background-position: left 50% center;
    overflow: hidden;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-content h1 {
    font-size: 4.8rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 2.5rem;
    color: var(--light-color);
}

.hero-content p {
    font-size: 1.8rem;
    color: var(--light-color);
    margin-bottom: 4rem;
    max-width: 90%;
}

.cta-buttons {
    display: flex;
    gap: 2rem;
}

.hero-image {
    position: relative;
    display: flex;
    justify-content: flex-end;
    align-items: center;
}

.hero-image img {
    max-width: 80%;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

/* --------------------- */
/* Features Section */
/* --------------------- */
.features {
    padding: 10rem 0;
    background-color: white;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 3rem;
}

.feature-card {
    background-color: var(--gray-color);
    border-radius: var(--border-radius);
    padding: 4rem 3rem;
    text-align: center;
    transition: var(--transition);
    box-shadow: var(--box-shadow);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.feature-icon {
    margin-bottom: 2rem;
    background-color: var(--light-color);
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-left: auto;
    margin-right: auto;
}

.feature-icon i {
    color: var(--primary-color);
    font-size: 3.2rem;
}

.feature-card h3 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: var(--dark-color);
}

.feature-card p {
    color: var(--text-light);
    font-size: 1.5rem;
}

/* --------------------- */
/* Products Section */
/* --------------------- */
.products {
    padding: 10rem 0;
    background-color: var(--gray-color);
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 4rem;
}

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

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.product-image {
    height: 250px;
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

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

.product-card h3 {
    padding: 2rem 2rem 1rem;
    font-size: 2.2rem;
    color: var(--dark-color);
}

.product-card p {
    padding: 0 2rem 2rem;
    color: var(--text-light);
}

.product-link {
    display: block;
    padding: 1.5rem 2rem;
    background-color: var(--light-color);
    text-align: center;
    color: var(--primary-color);
    font-weight: 500;
    transition: var(--transition);
}

.product-link:hover {
    background-color: var(--primary-color);
    color: white;
}

/* --------------------- */
/* Documentation Section */
/* --------------------- */
.documentation {
    padding: 10rem 0;
    background-color: var(--gray-color);
}

.section-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 5rem;
    font-size: 1.8rem;
    color: var(--text-light);
}

.view-all-link {
    margin-top: 4rem;
}

.doc-categories {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
    margin-bottom: 5rem;
}

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

.doc-category:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.doc-category-header {
    background-color: var(--primary-color);
    color: white;
    padding: 2.5rem;
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.doc-category-header i {
    font-size: 2.8rem;
}

.doc-category-header h3 {
    font-size: 2.2rem;
    font-weight: 600;
    margin: 0;
}

.doc-list {
    padding: 2rem;
}

.doc-item {
    margin-bottom: 1.5rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    padding-bottom: 1.5rem;
}

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

.doc-link {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 1rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.doc-link:hover {
    background-color: var(--light-color);
}

.doc-link i {
    color: var(--primary-color);
    font-size: 2rem;
}

.doc-name {
    flex: 1;
    font-weight: 500;
    color: var(--dark-color);
}

.doc-format {
    background-color: var(--light-color);
    padding: 0.5rem 1rem;
    border-radius: 4px;
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--primary-color);
}

.doc-cta {
    background-color: white;
    border-radius: var(--border-radius);
    padding: 4rem;
    text-align: center;
    box-shadow: var(--box-shadow);
}

.doc-cta p {
    font-size: 1.8rem;
    margin-bottom: 2.5rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

@media (max-width: 1100px) {
    .doc-categories {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .doc-categories {
        grid-template-columns: 1fr;
    }
}

/* --------------------- */
/* CTA Section */
/* --------------------- */
.cta {
    padding: 8rem 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    text-align: center;
}

.cta-content h2 {
    font-size: 3.6rem;
    margin-bottom: 2rem;
    font-weight: 600;
}

.cta-content p {
    font-size: 1.8rem;
    margin-bottom: 4rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0.9;
}

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

.cta .primary-btn:hover {
    background-color: transparent;
    color: white;
}

/* --------------------- */
/* Footer */
/* --------------------- */
footer {
    background-color: var(--dark-color);
    color: #ddd;
    padding-top: 6rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 4rem;
    padding-bottom: 5rem;
}

.footer-logo h2 {
    font-size: 2.4rem;
    color: white;
    margin-bottom: 2rem;
}

.footer-logo span {
    color: var(--accent-color);
}

.footer-column p {
    margin-bottom: 2.5rem;
    line-height: 1.6;
    opacity: 0.8;
}

.social-links {
    display: flex;
    gap: 1.5rem;
}

.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: white;
    transition: var(--transition);
}

.social-links a:hover {
    background-color: var(--primary-color);
    transform: translateY(-5px);
}

.footer-column h3 {
    font-size: 1.8rem;
    color: white;
    margin-bottom: 2.5rem;
    position: relative;
}

.footer-column h3:after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 40px;
    height: 3px;
    background-color: var(--accent-color);
}

.footer-column ul li {
    margin-bottom: 1.2rem;
}

.footer-column ul li a {
    color: #ddd;
    opacity: 0.8;
    transition: var(--transition);
}

.footer-column ul li a:hover {
    color: white;
    opacity: 1;
    padding-left: 5px;
}

.contact-info li {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
    align-items: flex-start;
}

.contact-info i {
    color: var(--accent-color);
    font-size: 1.8rem;
    margin-top: 2px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 2.5rem 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-bottom p {
    opacity: 0.7;
}

.footer-bottom ul {
    display: flex;
    gap: 2rem;
}

.footer-bottom ul li a {
    color: #ddd;
    opacity: 0.7;
}

.footer-bottom ul li a:hover {
    color: white;
    opacity: 1;
}

/* --------------------- */
/* Responsive Design */
/* --------------------- */
@media (max-width: 1100px) {
    html {
        font-size: 55%;
    }
    
    .feature-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 900px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-content p {
        max-width: 100%;
    }
    
    .cta-buttons {
        justify-content: center;
    }
    
    .hero-image {
        display: none;
    }
    
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .case-studies-grid {
        grid-template-columns: 1fr;
        gap: 4rem;
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    html {
        font-size: 50%;
    }
    
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        flex-direction: column;
        background-color: white;
        height: 100vh;
        width: 70%;
        padding: 10rem 3rem;
        z-index: 999;
        transition: 0.5s;
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
        overflow-y: auto;
    }
    
    .nav-links.active {
        right: 0;
    }
    
    .nav-links .dropdown-content {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        padding: 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
    }
    
    .nav-links .dropdown.active .dropdown-content {
        max-height: 500px;
    }
    
    .nav-links .dropdown-content a {
        padding-left: 4rem;
        font-size: 1.4rem;
    }
    
    .hamburger {
        display: block;
        z-index: 1000;
    }
    
    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 6px);
    }
    
    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -6px);
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonial-slider {
        flex-direction: column;
    }
}

@media (max-width: 576px) {
    .product-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 2rem;
        text-align: center;
    }
}

/* Case Studies Home Styles */
.case-studies-home {
    padding: 10rem 0;
    background-color: white;
}

.case-studies-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 5rem;
}

.case-study {
    margin-bottom: 4rem;
    background-color: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.case-study:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.case-study-image {
    height: 300px;
    overflow: hidden;
    position: relative;
}

.case-study-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.case-study:hover .case-study-image img {
    transform: scale(1.1);
}

.case-study-industry {
    position: absolute;
    top: 20px;
    right: 20px;
    background-color: var(--primary-color);
    color: white;
    padding: 0.8rem 1.5rem;
    border-radius: 30px;
    font-size: 1.4rem;
    font-weight: 500;
}

.case-study-content {
    padding: 3.5rem;
}

.case-study h3 {
    font-size: 2.4rem;
    margin-bottom: 1.5rem;
    color: var(--dark-color);
}

.case-study-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin: 3rem 0;
    text-align: center;
}

.stat-item h4 {
    font-size: 3.6rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.stat-item p {
    font-size: 1.4rem;
    color: var(--text-light);
}

.view-all-link {
    margin-top: 2rem;
}