/* Custom Modern Styles for Blog */

/* Global Styles */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    line-height: 1.8;
    color: #334155;
}

/* Header Styles */
.intro-header {
    position: relative;
}

.intro-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.7) 0%, rgba(30, 41, 59, 0.5) 100%);
    z-index: 1;
}

.intro-header .container {
    position: relative;
    z-index: 2;
}

/* Navigation */
.navbar-custom {
    background: rgba(255, 255, 255, 0.95) !important;
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
}

/* Post Cards */
.post-preview {
    padding: 30px 0;
    border-bottom: 1px solid #f1f5f9;
    transition: all 0.3s ease;
}

.post-preview:hover {
    transform: translateX(10px);
}

.post-preview > a {
    color: #1e293b;
    transition: color 0.3s ease;
}

.post-preview > a:hover,
.post-preview > a:focus {
    color: #0ea5e9;
    text-decoration: none;
}

.post-title {
    font-size: 26px;
    font-weight: 600;
    margin-bottom: 12px;
}

.post-subtitle {
    font-size: 18px;
    color: #64748b;
    font-weight: 400;
}

.post-meta {
    color: #94a3b8;
    font-size: 14px;
}

/* Buttons */
.btn {
    border-radius: 8px;
    padding: 10px 24px;
    transition: all 0.3s ease;
}

.btn-default {
    border: 2px solid #0ea5e9;
    color: #0ea5e9;
}

.btn-default:hover,
.btn-default:focus {
    background: #0ea5e9;
    color: white;
    border-color: #0ea5e9;
}

/* Sidebar */
.sidebar-container h5 {
    color: #475569;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-size: 13px;
}

.sidebar-container .short-about img {
    border-radius: 50%;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.sidebar-container .tags a {
    background: #f1f5f9;
    border: none;
    color: #475569;
    padding: 6px 14px;
    border-radius: 20px;
    margin: 4px;
    transition: all 0.3s ease;
}

.sidebar-container .tags a:hover {
    background: #0ea5e9;
    color: white;
}

/* Code Blocks */
pre {
    border-radius: 8px;
    border: none;
    background: #1e293b !important;
    padding: 20px;
}

pre code {
    color: #e2e8f0;
}

/* Inline Code */
code {
    background: #f1f5f9;
    color: #dc2626;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.9em;
}

/* Blockquote */
blockquote {
    border-left: 4px solid #0ea5e9;
    background: #f8fafc;
    padding: 20px 24px;
    margin: 30px 0;
    border-radius: 0 8px 8px 0;
    color: #475569;
}

/* Images */
img {
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

/* Links */
a {
    color: #0ea5e9;
    transition: color 0.3s ease;
}

a:hover,
a:focus {
    color: #0284c7;
}

/* Post Container */
.post-container {
    font-size: 17px;
}

.post-container h1,
.post-container h2,
.post-container h3,
.post-container h4,
.post-container h5,
.post-container h6 {
    font-weight: 600;
    color: #1e293b;
    margin-top: 40px;
    margin-bottom: 16px;
}

/* Pager */
.pager li > a,
.pager li > span {
    border-radius: 30px;
    border: 2px solid #e2e8f0;
    color: #475569;
    padding: 10px 24px;
    transition: all 0.3s ease;
}

.pager li > a:hover,
.pager li > a:focus {
    background: #0ea5e9;
    border-color: #0ea5e9;
    color: white;
}

/* Footer */
footer {
    padding: 60px 0 40px;
    background: #f8fafc;
    border-top: 1px solid #e2e8f0;
}

footer .copyright {
    color: #64748b;
}

/* Responsive */
@media (max-width: 768px) {
    .post-title {
        font-size: 22px;
    }
    
    .post-subtitle {
        font-size: 16px;
    }
    
    .intro-header .post-heading h1 {
        font-size: 30px;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.post-preview {
    animation: fadeInUp 0.6s ease forwards;
}

.post-preview:nth-child(1) { animation-delay: 0.1s; }
.post-preview:nth-child(2) { animation-delay: 0.2s; }
.post-preview:nth-child(3) { animation-delay: 0.3s; }
.post-preview:nth-child(4) { animation-delay: 0.4s; }
.post-preview:nth-child(5) { animation-delay: 0.5s; }