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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #2c3e50;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
}

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

/* Header Styles */
.header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

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

.nav-brand {
    flex: 1;
}

.logo {
    font-family: 'Poppins', sans-serif;
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    background: linear-gradient(45deg, #ffd89b 0%, #19547b 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tagline {
    font-size: 0.9rem;
    opacity: 0.9;
    font-weight: 300;
    letter-spacing: 0.5px;
}

/* Navigation */
.nav {
    position: relative;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: white;
    margin: 3px 0;
    transition: 0.3s;
    border-radius: 2px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    color: white;
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.nav-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.nav-link:hover::before {
    left: 100%;
}

.nav-link:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

/* Main Content */
.main {
    padding: 3rem 0;
}

/* Blog Article Styles */
.blog-article {
    background: white;
    border-radius: 20px;
    padding: 3rem;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
    margin-bottom: 2rem;
    position: relative;
    overflow: hidden;
}

.blog-article::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(90deg, #667eea, #764ba2, #f093fb, #f5576c);
}

.article-header {
    text-align: center;
    margin-bottom: 3rem;
    padding-bottom: 2rem;
    border-bottom: 2px solid #f8f9fa;
}

.article-title {
    font-family: 'Poppins', sans-serif;
    font-size: 2.5rem;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 1rem;
    line-height: 1.2;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.article-meta {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.article-date,
.article-category {
    background: linear-gradient(135deg, #ffecd2 0%, #fcb69f 100%);
    color: #8b4513;
    padding: 0.5rem 1.5rem;
    border-radius: 25px;
    font-weight: 500;
    font-size: 0.9rem;
}

/* Article Content */
.article-content {
    font-size: 1.1rem;
    line-height: 1.8;
}

.article-content h2 {
    font-family: 'Poppins', sans-serif;
    font-size: 1.8rem;
    font-weight: 600;
    color: #2c3e50;
    margin: 2.5rem 0 1.5rem 0;
    padding-left: 1rem;
    border-left: 4px solid #667eea;
    position: relative;
}

.article-content h2::before {
    content: '';
    position: absolute;
    left: -4px;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(180deg, #667eea, #764ba2);
    border-radius: 2px;
}

.article-content h3 {
    font-family: 'Poppins', sans-serif;
    font-size: 1.4rem;
    font-weight: 600;
    color: #34495e;
    margin: 2rem 0 1rem 0;
}

.article-content p {
    margin-bottom: 1.5rem;
    text-align: justify;
}

.article-content a {
    color: #667eea;
    text-decoration: none;
    font-weight: 600;
    position: relative;
    transition: all 0.3s ease;
}

.article-content a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -2px;
    left: 0;
    background: linear-gradient(90deg, #667eea, #764ba2);
    transition: width 0.3s ease;
}

.article-content a:hover::after {
    width: 100%;
}

.article-content a:hover {
    color: #764ba2;
}

/* Table Styles */
.table-container {
    margin: 2.5rem 0;
    overflow-x: auto;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    background: white;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
}

.data-table th {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 1.2rem;
    text-align: left;
    font-weight: 600;
    font-family: 'Poppins', sans-serif;
}

.data-table th:first-child {
    border-top-left-radius: 15px;
}

.data-table th:last-child {
    border-top-right-radius: 15px;
}

.data-table td {
    padding: 1rem 1.2rem;
    border-bottom: 1px solid #e9ecef;
    transition: background-color 0.3s ease;
}

.data-table tr:nth-child(even) {
    background: #f8f9fa;
}

.data-table tr:hover {
    background: linear-gradient(135deg, #ffecd2 0%, #fcb69f 20%);
    transform: scale(1.01);
    transition: all 0.3s ease;
}

.data-table tr:last-child td:first-child {
    border-bottom-left-radius: 15px;
}

.data-table tr:last-child td:last-child {
    border-bottom-right-radius: 15px;
}

/* Footer */
.footer {
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    color: white;
    padding: 2rem 0;
    margin-top: 3rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2rem;
    align-items: center;
}

.footer-brand h3 {
    font-family: 'Poppins', sans-serif;
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: #ffd89b;
}

.footer-brand p {
    opacity: 0.9;
    line-height: 1.6;
}

.footer-info {
    text-align: right;
}

.footer-info p {
    margin-bottom: 0.5rem;
    opacity: 0.8;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    
    .header .container {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav-brand {
        text-align: center;
        width: 100%;
    }
    
    .nav-toggle {
        display: flex;
        /* position: absolute; */
        top: 1rem;
        right: 1rem;
    }
    
    .nav-menu {
        display: none;
        flex-direction: column;
        width: 100%;
        background: rgba(255, 255, 255, 0.1);
        border-radius: 10px;
        padding: 1rem;
        gap: 0.5rem;
        margin-top: 1rem;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-toggle.active span:nth-child(1) {
        transform: rotate(-45deg) translate(-5px, 6px);
    }
    
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active span:nth-child(3) {
        transform: rotate(45deg) translate(-5px, -6px);
    }
    
    .logo {
        font-size: 1.8rem;
    }
    
    .tagline {
        font-size: 0.8rem;
    }
    
    .blog-article {
        padding: 2rem 1.5rem;
        border-radius: 15px;
    }
    
    .article-title {
        font-size: 2rem;
    }
    
    .article-meta {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }
    
    .article-content {
        font-size: 1rem;
    }
    
    .article-content h2 {
        font-size: 1.5rem;
        margin: 2rem 0 1rem 0;
    }
    
    .article-content h3 {
        font-size: 1.2rem;
    }
    
    .data-table {
        font-size: 0.85rem;
    }
    
    .data-table th,
    .data-table td {
        padding: 0.8rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 1.5rem;
    }
    
    .footer-info {
        text-align: center;
    }
}

@media (max-width: 480px) {
    .blog-article {
        padding: 1.5rem 1rem;
    }
    
    .article-title {
        font-size: 1.7rem;
    }
    
    .article-content h2 {
        font-size: 1.3rem;
    }
    
    .data-table th,
    .data-table td {
        padding: 0.6rem;
        font-size: 0.8rem;
    }
    
    .table-container {
        margin: 1.5rem -1rem;
        border-radius: 0;
    }
    
    .data-table th:first-child,
    .data-table th:last-child,
    .data-table tr:last-child td:first-child,
    .data-table tr:last-child td:last-child {
        border-radius: 0;
    }
}

/* Animation and Interaction Enhancements */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.blog-article {
    animation: fadeInUp 0.8s ease-out;
}

.article-content h2:hover {
    transform: translateX(5px);
    transition: transform 0.3s ease;
}

/* Scroll animations */
@media (prefers-reduced-motion: no-preference) {
    .article-content > * {
        opacity: 0;
        transform: translateY(20px);
        animation: fadeInUp 0.6s ease-out forwards;
    }
    
    .article-content > *:nth-child(1) { animation-delay: 0.1s; }
    .article-content > *:nth-child(2) { animation-delay: 0.2s; }
    .article-content > *:nth-child(3) { animation-delay: 0.3s; }
    .article-content > *:nth-child(4) { animation-delay: 0.4s; }
    .article-content > *:nth-child(5) { animation-delay: 0.5s; }
}

/* Focus styles for accessibility */
.nav-link:focus,
.article-content a:focus {
    outline: 2px solid #ffd89b;
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .header,
    .footer,
    .nav-toggle {
        display: none;
    }
    
    .blog-article {
        box-shadow: none;
        border: 1px solid #ddd;
    }
    
    .article-content a {
        color: #000;
        text-decoration: underline;
    }
}