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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #1a2a3a;
    background-color: #f0f4f8;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ---------- HEADER / NAVIGATION ---------- */
.main-header {
    background: linear-gradient(135deg, #1a5f7a 0%, #0d445a 100%);
    color: white;
    padding: 20px 0;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

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

.logo a {
    color: white;
    font-size: 1.6rem;
    font-weight: bold;
    text-decoration: none;
    letter-spacing: 1px;
}

.logo a:hover {
    color: #ffd700;
}

.nav-links a {
    color: white;
    text-decoration: none;
    margin-left: 25px;
    padding: 8px 15px;
    border-radius: 25px;
    transition: all 0.3s ease;
    font-weight: 500;
}

.nav-links a:hover {
    background-color: rgba(255,255,255,0.2);
}

.nav-links a.active {
    background-color: #ffd700;
    color: #1a5f7a;
}

/* ---------- BLOG LISTING PAGE ---------- */
.blog-header {
    text-align: center;
    padding: 50px 0 30px 0;
    background: linear-gradient(135deg, #e8f0f5 0%, #d4e2ec 100%);
    border-radius: 0 0 30px 30px;
    margin-bottom: 40px;
}

.blog-header h1 {
    font-size: 2.8rem;
    color: #1a5f7a;
    margin-bottom: 15px;
}

.blog-header p {
    color: #4a627a;
    font-size: 1.2rem;
}

/* Blog post cards */
.blog-list {
    display: flex;
    flex-direction: column;
    gap: 30px;
    margin-bottom: 50px;
}

.blog-card {
    background: white;
    border-radius: 16px;
    padding: 30px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    border-left: 5px solid #1a5f7a;
}

.blog-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0,0,0,0.12);
}

.blog-card h2 {
    margin-bottom: 12px;
}

.blog-card h2 a {
    color: #1a5f7a;
    text-decoration: none;
    font-size: 1.6rem;
}

.blog-card h2 a:hover {
    color: #0d445a;
    text-decoration: underline;
}

.blog-meta {
    color: #8899aa;
    font-size: 0.9rem;
    margin-bottom: 15px;
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.blog-category {
    background: #e8f0f5;
    padding: 3px 10px;
    border-radius: 20px;
    color: #1a5f7a;
    font-size: 0.8rem;
}

.blog-excerpt {
    color: #4a627a;
    margin-bottom: 20px;
    line-height: 1.7;
}

.read-more {
    color: #1a5f7a;
    text-decoration: none;
    font-weight: bold;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.read-more:hover {
    color: #0d445a;
    gap: 10px;
}

/* ---------- SINGLE BLOG POST PAGE ---------- */
.post-container {
    background: white;
    border-radius: 20px;
    padding: 40px;
    margin: 40px 0;
    box-shadow: 0 5px 25px rgba(0,0,0,0.05);
}

.post-title {
    font-size: 2.4rem;
    color: #1a5f7a;
    margin-bottom: 20px;
    line-height: 1.3;
}

.post-meta {
    color: #8899aa;
    border-bottom: 2px solid #e8f0f5;
    padding-bottom: 20px;
    margin-bottom: 30px;
    display: flex;
    gap: 25px;
    flex-wrap: wrap;
}

.post-content {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #2a3a4a;
}

.post-content h2 {
    color: #1a5f7a;
    margin: 35px 0 15px 0;
    font-size: 1.8rem;
}

.post-content h3 {
    color: #2c7a9e;
    margin: 25px 0 12px 0;
    font-size: 1.4rem;
}

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

.post-content ul, 
.post-content ol {
    margin: 20px 0 20px 30px;
}

.post-content li {
    margin: 10px 0;
}

.post-content img {
    max-width: 100%;
    border-radius: 12px;
    margin: 25px 0;
}

.post-content blockquote {
    background: #e8f0f5;
    border-left: 4px solid #1a5f7a;
    padding: 20px 25px;
    margin: 25px 0;
    font-style: italic;
    border-radius: 0 12px 12px 0;
}

/* Back links */
.back-links {
    margin-top: 40px;
    padding-top: 25px;
    border-top: 2px solid #e8f0f5;
    display: flex;
    gap: 30px;
}

.back-links a {
    color: #1a5f7a;
    text-decoration: none;
    font-weight: 500;
}

.back-links a:hover {
    text-decoration: underline;
}

/* ---------- SIDEBAR (Optional) ---------- */
.blog-sidebar {
    background: white;
    border-radius: 16px;
    padding: 25px;
    margin-top: 40px;
}

.blog-sidebar h3 {
    color: #1a5f7a;
    margin-bottom: 15px;
    border-bottom: 2px solid #e8f0f5;
    padding-bottom: 10px;
}

.blog-sidebar ul {
    list-style: none;
}

.blog-sidebar li {
    margin: 12px 0;
}

.blog-sidebar a {
    color: #4a627a;
    text-decoration: none;
}

.blog-sidebar a:hover {
    color: #1a5f7a;
}

/* ---------- FOOTER ---------- */
.main-footer {
    background: linear-gradient(135deg, #1a2a3a 0%, #0d1a25 100%);
    color: #aabbcc;
    text-align: center;
    padding: 35px 0;
    margin-top: 60px;
}

.main-footer a {
    color: #ffd700;
    text-decoration: none;
}

.main-footer a:hover {
    text-decoration: underline;
}

.main-footer p {
    margin: 8px 0;
}

/* ---------- RESPONSIVE (Mobile Friendly) ---------- */
@media (max-width: 768px) {
    .main-header .container {
        flex-direction: column;
        text-align: center;
        gap: 15px;
    }
    
    .nav-links a {
        margin: 0 10px;
        display: inline-block;
    }
    
    .blog-header h1 {
        font-size: 2rem;
    }
    
    .post-title {
        font-size: 1.8rem;
    }
    
    .post-container {
        padding: 25px;
    }
    
    .blog-card {
        padding: 20px;
    }
    
    .blog-card h2 a {
        font-size: 1.3rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .post-meta {
        gap: 12px;
        font-size: 0.8rem;
    }
    
    .back-links {
        flex-direction: column;
        gap: 10px;
    }
}