* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-blue: #1e40af;
    --secondary-blue: #3b82f6;
    --light-blue: #dbeafe;
    --dark-blue: #1e3a8a;
    --accent-blue: #60a5fa;
    --white: #ffffff;
    --light-gray: #f8fafc;
    --text-dark: #1f2937;
    --text-light: #6b7280;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    overflow-x: hidden;
}

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

/* Header */
header {
    background: linear-gradient(135deg, var(--secondary-blue));
    color: var(--white);
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    /* border: 1px solid red; */
}

.header-scrolled {
    background: rgba(30, 64, 175, 0.95);
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    position: relative;
    display: flex;
    align-items: center;
}

.logo :hover {
    transform: scale(1.02);
}

.logo :active {
    transform: scale(0.98);
}

.logo img{
    height: 100px;
    width: auto;
    margin: 0 auto;
    padding: 0 20px;
    /* opacity: 0.98; */
    mix-blend-mode: multiply;
    filter: brightness(0.8) contrast(1.2);
    transition: all 0.3s ease;
    transition: transform 0.2s ease;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
    padding: 10px;
}

.nav-links a {
    color: var(--white);
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
    padding: 0.5rem 10px;
}

.nav-links a:hover {
    color: var(--light-blue);
    transform: translateY(-2px);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--light-blue);
    transition: width 0.3s ease;
}

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

.mobile-menu {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background: var(--white);
    margin: 3px 0;
    transition: 0.3s;
}

/* Page Header */
.page-header {
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    color: var(--white);
    padding: 140px 0 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
    height: 550px;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%; 
    height: 100%;
    background: url(images/pressure.jpeg);
    /* background-size: 100% auto;       */
    background-size: 100% 100%; 
    background-repeat: no-repeat;     
    background-position: center, top;      
    height: 750px; 
    background-color: var(--secondary-blue);
    background-blend-mode: var(--light-gray);
    z-index: 100px;
    /* /* margin: 0; */
    animation: float 20s ease-in-out infinite;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    color: var(--white);
    padding: 140px 0 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    /* background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>'); */
    animation: float 20s ease-in-out infinite;
    background-image: url("images/floor.png");
}

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

.page-header-content {
    position: relative;
    z-index: 2;
    /* border: 1px solid red; */
}

/* .page-header{
background-image: url("images/floor.png");
background-size: 100% 100%;      
background-repeat: no-repeat;     
background-position: center;      
height: 100vh; 
margin: 0;
} */

page-header-content
.page-header h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
    animation: slideInUp 1s ease-out;
}


/* === Article Detail Page === */
    .article-detail {
    padding: 60px 0;
    background-color: #f9f9f9;
    /* font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; */
}

    .article-detail .container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 1rem;
    background: #fff;
    box-shadow: 0 0 10px rgba(0,0,0,0.05);
    border-radius: 8px;
    padding: 40px;
}

    .article-detail h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    color: #1e2e47;
}

.page-header .article-meta {
    /* font-size: 0.95rem; */
    color: var(--white);
    margin-bottom: 2rem;
    font-weight: bold;
    margin: auto;
}


.article-body h3 {
    margin-top: 2rem;
    font-size: 1.5rem;
    color: #333;
}

.article-body p {
    line-height: 1.7;
    margin: 1rem 0;
    color: #444;
}

.article-body img {
    max-width: 100%;
    margin: 2rem 0;
    border-radius: 6px;
}

.article-body blockquote {
    margin: 2rem 0;
    padding: 1rem 1.5rem;
    background-color: #eef2f7;
    border-left: 4px solid #1a73e8;
    color: #444;
    font-style: italic;
}

.article-body ul,
.article-body ol {
    margin: 1.5rem 0;
    padding-left: 2rem;
}

    .article-body li {
    margin: 0.5rem 0;
}

    .article-body pre {
    background-color: #f0f4f8;
    padding: 1rem;
    overflow-x: auto;
    border-radius: 4px;
    margin: 1.5rem 0;
    font-family: monospace;
    font-size: 0.9rem;
}

/* Logo */
.logo {
    position: center;
    /* border: 1px sold red; */
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
    animation: slideInUp 1s ease-out;
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.page-header p {
    font-size: 1.2rem;
    opacity: 0.9;
    animation: slideInUp 1s ease-out 0.3s both;
}

 /* Articles Section */
.articles {
    padding: 80px 0;
    background: var(--light-gray);
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.article-card {
    background: var(--white);
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    overflow: hidden;
    border-top: 4px solid var(--secondary-blue);
}

.article-card:hover {
transform: translateY(-10px);
box-shadow: 0 15px 40px rgba(0,0,0,0.15);
}

.article-image {
    height: 200px;
    background: linear-gradient(135deg, var(--light-blue), var(--accent-blue));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: var(--primary-blue);
}

.article-content {
    padding: 2rem;
}

.article-meta {
    display: flex;
    justify-content: space-between;
    margin-bottom: 1rem;
    font-size: 0.9rem;
    color: var(--text-light);
}

.article-category {
    background: var(--light-blue);
    color: var(--primary-blue);
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
}

.article-card h3 {
    color: var(--primary-blue);
    margin-bottom: 1rem;
    font-size: 1.3rem;
    line-height: 1.3;
}

.article-card p {
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.read-more {
    color: var(--secondary-blue);
    text-decoration: none;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
}

/* Categories Filter */
.categories-filter {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.filter-btn {
    background: var(--white);
    color: var(--text-dark);
    border: 2px solid var(--light-blue);
    padding: 0.8rem 1.5rem;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    font-weight: 500;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--secondary-blue);
    color: var(--white);
    border-color: var(--secondary-blue);
}

/* Newsletter Section */
.newsletter {
    padding: 60px 0;
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    color: var(--white);
    text-align: center;
}

.newsletter h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.newsletter p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.newsletter-form {
    display: flex;
    max-width: 500px;
    margin: 0 auto;
    gap: 1rem;
}

.newsletter-form input {
    flex: 1;
    padding: 12px 20px;
    border: none;
    border-radius: 25px;
    font-size: 1rem;
}

.newsletter-form button {
    background: var(--white);
    color: var(--primary-blue);
    border: none;
    padding: 12px 25px;
    border-radius: 25px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
}

.newsletter-form button:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255,255,255,0.3);
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    animation: slideInUp 1s ease-out 0.3s both;
}

.cta-button {
    display: inline-block;
    background: var(--white);
    color: var(--primary-blue);
    padding: 15px 30px;
    text-decoration: none;
    border-radius: 50px;
    font-weight: bold;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    animation: slideInUp 1s ease-out 0.6s both;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.3);
    background: var(--light-blue);
}

/* Services Section */
.services {
    padding: 80px 0;
    background: var(--light-gray);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    color: var(--primary-blue);
    margin-bottom: 3rem;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--secondary-blue);
    border-radius: 2px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 4rem;
}

.service-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    border-top: 4px solid var(--secondary-blue);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
}

.service-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--secondary-blue), var(--accent-blue));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 1.5rem;
    color: var(--white);
}

.service-card h3 {
    color: var(--primary-blue);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.service-card p {
    color: var(--text-light);
    line-height: 1.6;
}

/* About Section */
.about {
    padding: 80px 0;
    background: var(--white);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;

}

.about-text h2 {
    color: var(--primary-blue);
    font-size: 2.5rem;
    margin-bottom: 1.2rem;
}

.about-text p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.about-features {
    list-style: none;
    margin-top: 2rem;
}

.about-features li {
    padding: 0.5rem 0;
    color: var(--text-dark);
    position: relative;
    padding-left: 2rem;
}

.about-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--secondary-blue);
    font-weight: bold;
    font-size: 1.2rem;
}

.about-image {
    background: linear-gradient(135deg, var(--light-blue), var(--accent-blue));
    border-radius: 20px;
    height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-blue);
    font-size: 4rem;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.about-image img{
    height: 550px;
    width: 700px;
    opacity:  rgba(2, 164, 251, 0.02);
    
}

/* Contact Section */
.contact {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    color: var(--white);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    margin-bottom: 1.5rem;
}

.contact-icon {
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 1rem;
}

.contact-form {
    background: rgba(255,255,255,0.1);
    padding: 2rem;
    border-radius: 15px;
    backdrop-filter: blur(10px);
    /* border: 1px solid red; */
}

.contact-form .hidden{
    visibility: hidden;
    height: 0;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-group input,
.form-group textarea,
.form-select {
    width: 100%;
    padding: 12px;
    border: none;
    border-radius: 8px;
    background: rgba(255,255,255,0.9);
    color: var(--text-dark);
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus,
.form-select:focus {
    outline: none;
    background: var(--white);
    box-shadow: 0 0 10px rgba(255,255,255,0.3);
}

.submit-btn {
    background: var(--white);
    color: var(--primary-blue);
    padding: 12px 30px;
    border: none;
    border-radius: 50px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 100%;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255,255,255,0.3);
}

/* Footer */
footer {
    background: var(--dark-blue);
    color: var(--white);
    text-align: center;
    padding: 2rem 0;
}

.about-content {
    flex-direction: column;
    text-align: center;
    gap: 2rem;
}

.about-text,
.about-image {
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
}

.about-features {
    text-align: center;
    list-style: none;
    padding: 0;
}

.about-issmage img {
    max-width: 180px;
    height: auto;
}




/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Scroll indicator */
.scroll-indicator {
    position: fixed;
    top: 0;
    left: 0;
    width: 0;
    height: 4px;
    background: linear-gradient(to right, var(--secondary-blue), var(--accent-blue));
    z-index: 1001;
    transition: width 0.3s ease;
}

.modal {
    display: none;
    position: fixed;
    z-index: 9999;
    left: 0; top: 0;
    width: 100%; height: 100%;
    overflow: auto;
    background-color: var(--light-blue)
}

.modal-content {
    background-color: var(--accent-blue);
    margin: 15% auto;
    padding: 30px;
    border-radius: 8px;
    width: 90%;
    max-width: 400px;
    text-align: center;
    position: relative;
    box-shadow: 0 0 20px rgba(0,0,0,0.3);
}

.modal-close {
    position: absolute;
    top: 10px; right: 15px;
    font-size: 24px;
    cursor: pointer;
}

.article-detail .container {
    padding: 20px;
}

.article-detail h1 {
    font-size: 2rem;
}
.article-body h3 {
    font-size: 1.3rem;
}

.article-detail .container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 1rem;
    background: #fff;
    box-shadow: 0 0 10px rgba(0,0,0,0.05);
    border-radius: 8px;
    padding: 40px;
}

.article-detail h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    color: #1e2e47;
}

.page-header .article-meta {
    color: var(--white);
    margin: 2rem;
}

.article-body h3 {
    margin-top: 2rem;
    font-size: 1.5rem;
    color: #333;
}

.article-body p {
    line-height: 1.7;
    margin: 1rem 0;
    color: #444;
}

.article-body img {
    max-width: 100%;
    margin: 2rem 0;
    border-radius: 6px;
}

.article-body blockquote {
    margin: 2rem 0;
    padding: 1rem 1.5rem;
    background-color: #eef2f7;
    border-left: 4px solid #1a73e8;
    color: #444;
    font-style: italic;
}

.article-body ul,
    .article-body ol {
    margin: 1.5rem 0;
    padding-left: 2rem;
}

.article-body li {
    margin: 0.5rem 0;
}

.article-body pre {
    background-color: #f0f4f8;
    padding: 1rem;
    overflow-x: auto;
    border-radius: 4px;
    margin: 1.5rem 0;
    font-family: monospace;
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--primary-blue);
        flex-direction: column;
        padding: 1rem 0;
    }

    .nav-links.active {
        display: flex;
    }

    .logo {
                position: static;
                transform: none;
                order: 1;
    }

    .logo img {
            height: 80px;
            width: auto;
            /* opacity: 0.98; */
            mix-blend-mode: multiply;
            filter: brightness(0.8) contrast(1.2);
            transition: all 0.3s ease;
    }

    .mobile-menu {
        display: flex;
        
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .about-content {
        grid-template-columns: 1fr;
        text-align: center;
        /* border: 1px solid red; */
    }

    .contact-content {
        grid-template-columns: 1fr;
    }

    .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    #about .container {
        max-width: 480px;
    }

    #about .about-text p {
        text-align: center !important;
        margin-left: auto !important;
        margin-right: auto !important;
        width: 100% !important;
        display: block !important;
    }
    
    /* Override any existing text-align properties */
    #about .about-text * {
        text-align: center !important;
    }
}