/* CSS Variables */
:root {
    --primary: #1a365d;
    --primary-light: #2c5282;
    --accent: #c53030;
    --accent-light: #e53e3e;
    --neutral-50: #fafafa;
    --neutral-100: #f5f5f5;
    --neutral-200: #e5e5e5;
    --neutral-300: #d4d4d4;
    --neutral-600: #525252;
    --neutral-700: #404040;
    --neutral-800: #262626;
    --neutral-900: #171717;
    --circle-1: rgba(26, 54, 93, 0.08);
    --circle-2: rgba(197, 48, 48, 0.06);
    --circle-3: rgba(26, 54, 93, 0.05);
}

/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--neutral-800);
    background-color: var(--neutral-50);
}

h1, h2, h3, h4 { font-family: 'Fraunces', Georgia, serif; font-weight: 500; line-height: 1.2; }

/* New Navigation (used by HARMONIC and other sub-pages) */
nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    background: rgba(250, 250, 250, 0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--neutral-200);
}
nav .container { display: flex; justify-content: space-between; align-items: center; height: 80px; max-width: 1260px; width: 100%; }
.nav-brand { display: flex; align-items: center; gap: 0.85rem; }
.rpi-logo { display: flex; align-items: center; padding-left: 0.85rem; border-left: 1px solid var(--neutral-200); }
.rpi-logo img { height: 28px; width: auto; }
.nav-logo {
    display: flex; align-items: center; gap: 10px;
    font-family: 'Fraunces', serif; font-weight: 600; font-size: 1.2rem; color: var(--primary);
    text-decoration: none;
}
.nav-logo:hover { color: var(--primary); }
.logo-circles { width: 36px; height: 36px; position: relative; }
.logo-circles::before, .logo-circles::after, .logo-circles span {
    position: absolute; border-radius: 50%; border: 2px solid;
}
.logo-circles::before { content: ''; width: 20px; height: 20px; top: 2px; left: 2px; border-color: var(--primary); }
.logo-circles::after { content: ''; width: 18px; height: 18px; top: 9px; left: 12px; border-color: var(--accent); }
.logo-circles span { width: 16px; height: 16px; bottom: 2px; left: 7px; border-color: var(--primary-light); }

.nav-links { display: flex; gap: 0.25rem; list-style: none; align-items: center; }
.nav-links > li { position: relative; }
.nav-links > li > a {
    font-size: 0.9rem; font-weight: 500; color: var(--neutral-600);
    padding: 0.5rem 0.75rem; border-radius: 6px; display: block;
    text-decoration: none;
}
.nav-links > li > a:hover { color: var(--neutral-900); background: var(--neutral-100); }
.nav-links > li > a.active { color: var(--primary); font-weight: 600; }

/* Dropdown */
.dropdown-menu {
    position: absolute; top: 100%; left: 0; min-width: 200px;
    background: white; border: 1px solid var(--neutral-200);
    border-radius: 8px; box-shadow: 0 8px 24px rgba(0,0,0,0.1);
    opacity: 0; visibility: hidden; transform: translateY(8px);
    transition: all 0.2s ease; padding: 0.5rem 0; z-index: 100;
    list-style: none;
}
.nav-links > li:hover .dropdown-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown-menu a {
    display: block; padding: 0.5rem 1rem; font-size: 0.85rem; color: var(--neutral-600);
    text-decoration: none;
}
.dropdown-menu a:hover { background: var(--neutral-50); color: var(--primary); }
.dropdown-menu .sub-label {
    font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.05em;
    color: var(--neutral-400); padding: 0.5rem 1rem 0.25rem; font-weight: 600;
}
.dropdown-menu .has-submenu { position: relative; }
.dropdown-menu .has-submenu > a::after { content: ' \25B8'; font-size: 0.7rem; }
.dropdown-menu .submenu { position: absolute; left: 100%; top: 0; min-width: 180px; background: white; border: 1px solid var(--neutral-200); border-radius: 8px; box-shadow: 0 8px 24px rgba(0,0,0,0.1); opacity: 0; visibility: hidden; transform: translateX(8px); transition: all 0.2s ease; padding: 0.5rem 0; z-index: 101; }
.dropdown-menu .has-submenu:hover .submenu { opacity: 1; visibility: visible; transform: translateX(0); }

/* New Footer (used by HARMONIC and other sub-pages) */
.footer-logo {
    display: flex; align-items: center; gap: 10px;
    font-family: 'Fraunces', serif; font-weight: 600; font-size: 1.2rem; color: white;
    text-decoration: none; margin-bottom: 1rem;
}
.footer-logo:hover { color: white; }
.footer-logo .logo-circles::before { border-color: white; }
.footer-logo .logo-circles::after { border-color: rgba(255,255,255,0.7); }
.footer-logo .logo-circles span { border-color: rgba(255,255,255,0.5); }
.footer-content { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 2rem; }
.footer-info { max-width: 300px; }
.footer-info p { color: rgba(255,255,255,0.8); font-size: 0.9rem; }
.footer-links { display: flex; gap: 4rem; }
.footer-section h4 { color: white; font-size: 0.9rem; font-weight: 600; margin-bottom: 1rem; }
.footer-section ul { list-style: none; padding: 0; }
.footer-section li { margin-bottom: 0.5rem; }
.footer-section a { color: rgba(255,255,255,0.8); font-size: 0.85rem; text-decoration: none; }
.footer-section a:hover { color: white; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.2); padding-top: 1.5rem; margin-top: 2rem; text-align: center; }
.footer-bottom p { color: rgba(255,255,255,0.6); font-size: 0.85rem; }

/* Mobile Navigation Toggle */
@media (max-width: 900px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 80px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 1rem;
        border-bottom: 1px solid var(--neutral-200);
        box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    }
    .nav-links.active { display: flex; }
    .nav-links > li { width: 100%; }
    .nav-links > li > a { padding: 0.75rem 1rem; }
    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        border: none;
        padding-left: 1rem;
    }
    .footer-links { gap: 2rem; }
    .footer-content { flex-direction: column; }
}

/* Construction Notice */
.construction-notice {
    background: #ff6b35;
    color: white;
    text-align: center;
    padding: 10px 0;
    font-weight: 600;
    font-size: 0.9rem;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1001;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

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

/* Navigation */
.navbar {
    background: #ffffff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: fixed;
    top: 40px;
    width: 100%;
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo h2 {
    color: #1a365d;
    font-size: 1.8rem;
    font-weight: 700;
    text-decoration: none;
    border: none;
}

.nav-menu {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: #4a5568;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: #1a365d;
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: #1a365d;
    transition: width 0.3s ease;
}

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

.nav-link.active {
    color: #1a365d;
    font-weight: 600;
}

.nav-link.active::after {
    width: 100%;
}

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

.bar {
    width: 25px;
    height: 3px;
    background-color: #1a365d;
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #1a365d 0%, #2d3748 100%);
    color: white;
    padding: 160px 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="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    font-weight: 300;
}

.hero-directors {
    font-size: 1.1rem;
    margin-bottom: 3rem;
    opacity: 0.8;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 12px 30px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    display: inline-block;
    border: 2px solid transparent;
}

.btn-primary {
    background: #ffffff;
    color: #1a365d;
    border-color: #ffffff;
}

.btn-primary:hover {
    background: transparent;
    color: #ffffff;
    border-color: #ffffff;
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: #ffffff;
    border-color: #ffffff;
}

.btn-secondary:hover {
    background: #ffffff;
    color: #1a365d;
    transform: translateY(-2px);
}

/* Featured News Section */
.featured-news {
    padding: 80px 0;
    background: #f7fafc;
}

.news-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 2rem;
    margin-top: 2rem;
}

.news-card {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid #e2e8f0;
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.12);
}

.news-card.featured {
    background: linear-gradient(135deg, #1a365d 0%, #2d3748 100%);
    color: white;
}

.news-card.featured h3 {
    color: white;
}

.news-card h3 {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1a365d;
}

.news-card p {
    margin-bottom: 1.5rem;
    line-height: 1.6;
    color: #4a5568;
}

.news-card.featured p {
    color: rgba(255,255,255,0.9);
}

.news-link {
    color: #1a365d;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: color 0.3s ease;
}

.news-card.featured .news-link {
    color: white;
}

.news-link:hover {
    color: #2d3748;
}

.news-card.featured .news-link:hover {
    color: rgba(255,255,255,0.8);
}

/* Section Styles */
section {
    padding: 80px 0;
}

section:nth-child(even) {
    background: #f7fafc;
}

h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1a365d;
    margin-bottom: 3rem;
    text-align: center;
    position: relative;
}

h2::after {
    content: '';
    position: absolute;
    width: 60px;
    height: 4px;
    background: #1a365d;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
}

/* About Section */
.about {
    background: white;
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
}

.about-text p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    color: #4a5568;
    line-height: 1.7;
}

.about-text ul {
    margin: 2rem 0;
    padding-left: 0;
    list-style: none;
}

.about-text li {
    margin-bottom: 1rem;
    padding-left: 2rem;
    position: relative;
    font-size: 1.05rem;
    color: #4a5568;
    line-height: 1.6;
}

.about-text li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: #1a365d;
    font-weight: bold;
}

/* Research Areas */
.research-areas {
    background: white;
}

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

.research-card {
    background: white;
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    border: 1px solid #e2e8f0;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: center;
}

.research-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.12);
}

.research-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #1a365d;
    margin-bottom: 1rem;
}

.research-card p {
    color: #4a5568;
    line-height: 1.6;
}

/* Lab Statistics */
.lab-stats {
    background: #1a365d;
    color: white;
    padding: 60px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    text-align: center;
}

.stat-item {
    padding: 1rem;
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: white;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1.1rem;
    opacity: 0.9;
    font-weight: 500;
}

/* Publications */
.publications {
    background: white;
}

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

.publication-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    border: 1px solid #e2e8f0;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.publication-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.12);
}

.publication-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #1a365d;
    margin-bottom: 0.5rem;
}

.publication-card .authors {
    color: #4a5568;
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.publication-card .status {
    color: #1a365d;
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.publication-card .publisher {
    color: #718096;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.publication-card .description {
    color: #4a5568;
    line-height: 1.6;
}

.publication-card a {
    color: #1a365d;
    text-decoration: none;
    font-weight: 500;
}

.publication-card a:hover {
    text-decoration: underline;
}

.more-publications {
    margin-top: 3rem;
    text-align: center;
    padding: 2rem;
    background: #f7fafc;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
}

.more-publications p {
    color: #4a5568;
    font-size: 1.1rem;
}

/* Book Images Section */
.book-images {
    background: white;
}

.book-images-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 3rem;
    margin-top: 2rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.book-image-card {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 8px 30px rgba(0,0,0,0.12);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.book-image-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.15);
}

.book-image-placeholder {
    position: relative;
    width: 100%;
    height: 400px;
    background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px dashed #cbd5e0;
}

.book-cover {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.book-image-card:hover .book-cover {
    transform: scale(1.05);
}

.book-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(26, 54, 93, 0.9));
    color: white;
    padding: 2rem;
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

.book-image-card:hover .book-overlay {
    transform: translateY(0);
}

.book-overlay h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: white;
}

.book-overlay p {
    margin-bottom: 0.3rem;
    font-size: 0.9rem;
    opacity: 0.9;
}

/* People Section */
.people {
    background: #f7fafc;
}

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

.person-card {
    background: white;
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    border: 1px solid #e2e8f0;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.person-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.12);
}

.person-card h3 {
    font-size: 1.4rem;
    font-weight: 600;
    color: #1a365d;
    margin-bottom: 0.5rem;
}

.person-card .title {
    color: #1a365d;
    font-weight: 600;
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

.person-card p {
    color: #4a5568;
    line-height: 1.6;
}

/* News Section */
.news {
    background: white;
}

.news-list {
    max-width: 800px;
    margin: 0 auto;
}

.news-item {
    background: white;
    padding: 2rem;
    margin-bottom: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    border: 1px solid #e2e8f0;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.news-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.12);
}

.news-item h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #1a365d;
    margin-bottom: 0.5rem;
}

.news-date {
    color: #1a365d;
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.news-item p {
    color: #4a5568;
    line-height: 1.6;
}

/* Contact Section */
.contact {
    background: #f7fafc;
}

.contact-info {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
    background: white;
    padding: 3rem;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    border: 1px solid #e2e8f0;
}

.contact-info p {
    margin-bottom: 1rem;
    font-size: 1.1rem;
    color: #4a5568;
}

.contact-info a {
    color: #1a365d;
    text-decoration: none;
    font-weight: 600;
}

.contact-info a:hover {
    text-decoration: underline;
}

/* Footer */
footer {
    background: #1a365d;
    color: white;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: white;
}

.footer-section p {
    margin-bottom: 0.5rem;
    opacity: 0.9;
    line-height: 1.6;
}

.footer-section ul {
    list-style: none;
    padding: 0;
}

.footer-section li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: white;
    text-decoration: none;
    opacity: 0.9;
    transition: opacity 0.3s ease;
}

.footer-section a:hover {
    opacity: 1;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.2);
    padding-top: 2rem;
    text-align: center;
    opacity: 0.8;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 110px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0,0,0,0.05);
        padding: 2rem 0;
        gap: 1rem;
    }

    .nav-menu.active {
        left: 0;
    }

    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

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

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

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

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

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

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

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

    .book-images-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

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

    section {
        padding: 60px 0;
    }

    h2 {
        font-size: 2rem;
    }

    .container {
        padding: 0 15px;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2rem;
    }

    .hero {
        padding: 140px 0 60px;
    }

    .stat-number {
        font-size: 2.5rem;
    }

    .news-card,
    .research-card,
    .publication-card,
    .person-card,
    .news-item {
        padding: 1.5rem;
    }

    .contact-info {
        padding: 2rem;
    }

    .book-image-placeholder {
        height: 300px;
    }
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Focus styles for accessibility */
.nav-link:focus,
.btn:focus,
a:focus {
    outline: 2px solid #1a365d;
    outline-offset: 2px;
}

/* Loading animation for cards */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.news-card,
.research-card,
.publication-card,
.person-card,
.news-item {
    animation: fadeInUp 0.6s ease-out;
}

/* Blog Styles */
.blog-header {
    background: linear-gradient(135deg, #1a365d 0%, #2d5a87 100%);
    color: white;
    padding: 120px 0 80px;
    text-align: center;
}

.blog-header h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.blog-header p {
    font-size: 1.2rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

.blog-posts {
    padding: 80px 0;
}

.blog-post {
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    padding: 40px;
    margin-bottom: 40px;
    border-left: 4px solid #1a365d;
}

.post-meta {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
    font-size: 0.9rem;
    color: #666;
}

.post-date {
    font-weight: 500;
}

.post-category {
    background: #1a365d;
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

.blog-post h2 {
    font-size: 2.2rem;
    font-weight: 600;
    color: #1a365d;
    margin-bottom: 20px;
    line-height: 1.3;
}

.post-content {
    line-height: 1.7;
    color: #444;
}

.post-content p {
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.post-actions {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid #eee;
}

.post-actions .btn {
    display: inline-block;
    margin-right: 15px;
}