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

body {
    font-family: 'Inter', sans-serif;
    background: linear-gradient(135deg, #0a0e27 0%, #1a1f3a 100%);
    color: #ffffff;
    line-height: 1.6;
}

body,
h1,
h2,
h3,
p,
a,
button,
.tag,
.meta,
pre,
code {
    font-family: 'Inter', sans-serif;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

/* Header / Navbar */
.blog-header {
    margin-bottom: 2rem;
    border-bottom: 1px solid rgba(0, 255, 255, 0.2);
    padding-bottom: 1rem;
}

.blog-header h1 {
    font-size: 2rem;
    background: linear-gradient(45deg, #00ffff, #00ff88);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.blog-header p {
    color: #ffffff;
    margin-top: 0.5rem;
}

.back-home {
    display: inline-block;
    margin-top: 0.5rem;
    color: #00ffff;
    text-decoration: none;
    font-size: 0.9rem;
}

.back-home i {
    margin-right: 5px;
}

/* Pinned Blog Card */
.pinned-card {
    background: rgba(0, 255, 255, 0.05);
    border: 1px solid rgba(0, 255, 255, 0.3);
    border-radius: 20px;
    padding: 1.5rem;
    margin-bottom: 2.5rem;
    transition: 0.3s;
}

.pinned-card:hover {
    border-color: #00ffff;
    box-shadow: 0 10px 25px rgba(0, 255, 255, 0.2);
    transform: translateY(-3px);
}

.pinned-badge {
    display: inline-block;
    background: #00ffff20;
    color: #00ffff;
    padding: 0.2rem 0.8rem;
    border-radius: 20px;
    font-size: 0.7rem;
    margin-bottom: 0.8rem;
}

.pinned-card h3 {
    font-size: 1.4rem;
    color: #00ffff;
    margin-bottom: 0.5rem;
}

.pinned-card p {
    color: #ffffff;
    margin-bottom: 0.8rem;
}

.read-more {
    color: #00ff88;
    text-decoration: none;
    font-weight: bold;
}

/* Sticky Tabs */
.tabs-container {
    position: sticky;
    top: 0;
    background: rgba(10, 14, 27, 0.95);
    backdrop-filter: blur(12px);
    padding: 0.8rem 0;
    margin-bottom: 2rem;
    border-radius: 3rem;
    border-bottom: 1px solid rgba(0, 255, 255, 0.2);
    z-index: 100;
}

.tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
}

/* Modern Tabs – like screenshot (underline + glow) */
.tab-btn {
    background: transparent;
    border: none;
    padding: 0.6rem 1.4rem;
    border-radius: 0;
    color: #ccd6f6;
    font-weight: 500;
    position: relative;
    transition: 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.tab-btn i {
    font-size: 0.9rem;
    color: #00ffff;
}

.tab-btn::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    transform: translateX(-50%);
    width: 0%;
    height: 2px;
    background: linear-gradient(90deg, #00ffff, #00ff88);
    border-radius: 2px;
    transition: 0.3s ease;
}

.tab-btn:hover::after,
.tab-btn.active::after {
    width: 70%;
}

.tab-btn.active {
    color: #00ffff;
    background: transparent;
    font-weight: 600;
}

.tab-btn:hover:not(.active) {
    background: rgba(0, 255, 255, 0.08);
    color: #ffffff;
}





/* Blog Posts Grid */
.posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.post-card {
    background: rgba(0, 255, 255, 0.05);
    border: 1px solid rgba(0, 255, 255, 0.2);
    border-radius: 16px;
    padding: 1.2rem;
    transition: 0.3s;
}

.post-card:hover {
    transform: translateY(-5px);
    border-color: #00ffff;
    box-shadow: 0 8px 20px rgba(0, 255, 255, 0.15);
}

.post-category {
    display: inline-block;
    background: rgba(0, 255, 255, 0.2);
    padding: 0.2rem 0.6rem;
    border-radius: 20px;
    font-size: 0.7rem;
    color: #00ffff;
    margin-bottom: 0.8rem;
}

.post-card h4 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: #ffffff;
}

.post-card p {
    color: #ffffff;
    font-size: 0.85rem;
    margin-bottom: 1rem;
}

.post-link {
    color: #00ff88;
    text-decoration: none;
    font-size: 0.85rem;
}

.footer {
    text-align: center;
    margin-top: 3rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(0, 255, 255, 0.2);
    font-size: 0.8rem;
    color: #ffffff;
}

@media (max-width: 650px) {
    .container {
        padding: 1.5rem;
    }

    .tabs {
        gap: 0.3rem;
    }

    .tab-btn {
        padding: 0.4rem 0.9rem;
        font-size: 0.8rem;
    }
}

/* Additional styles only for post layout – extends blog.css */
.post-container {
    max-width: 900px;
    margin: 0 auto;
}

.article-header {
    margin-bottom: 2rem;
    border-left: 3px solid #00ffff;
    padding-left: 1.5rem;
}

.tag-row {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}

.tag {
    background: rgba(0, 255, 255, 0.15);
    padding: 0.2rem 0.8rem;
    border-radius: 20px;
    font-size: 0.7rem;
    color: #00ffff;
}

.article-meta {
    color: #ffffff;
    font-size: 0.85rem;
    margin-top: 1rem;
    display: flex;
    gap: 1.5rem;
}

.blog-content h2 {
    font-size: 1.6rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: #00ffff;
    /* border-left: 3px solid #00ff88; */
    padding-left: 1rem;
}

.blog-content h3 {
    font-size: 1.3rem;
    margin-top: 1.5rem;
    color: #00ff88;
}

.blog-content p {
    margin-bottom: 1rem;
    color: #ffffff;
}

pre {
    background: #0d1117;
    padding: 1rem;
    border-radius: 12px;
    overflow-x: auto;
    margin: 1.5rem 0;
    border-left: 3px solid #00ffff;
}

code {
    font-family: 'Fira Code', monospace;
    font-size: 0.85rem;
    color: #00ff88;
}

.inline-code {
    background: rgba(0, 255, 255, 0.1);
    padding: 0.2rem 0.4rem;
    border-radius: 6px;
    color: #00ffff;
}

.summary-box {
    background: rgba(0, 255, 255, 0.05);
    border: 1px solid rgba(0, 255, 255, 0.2);
    border-radius: 16px;
    padding: 1.5rem;
    margin: 1.5rem 0;
    color: #ffffff;
}

.summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
    color: #ffffff;
}

.alert {
    padding: 1rem;
    border-radius: 12px;
    margin: 1.5rem 0;
    border-left: 4px solid;
    color: #ffffff;
}

.alert-success {
    background: rgba(0, 255, 136, 0.1);
    border-color: #00ff88;
}

.alert-danger {
    background: rgba(255, 0, 0, 0.1);
    border-color: #ff4444;
}

.learning-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1rem;
    margin: 1.5rem 0;
}

.learning-card {
    background: rgba(0, 255, 255, 0.05);
    border-radius: 12px;
    padding: 1rem;
    color: #ffffff;
}

.back-to-blog {
    display: inline-block;
    margin-bottom: 2rem;
    color: #00ffff;
    text-decoration: none;
}

.back-to-blog i {
    margin-right: 5px;
}

@media (max-width: 650px) {
    .article-header {
        padding-left: 1rem;
    }

    .blog-content h2 {
        font-size: 1.3rem;
    }
}