/* Blog Styles */

:root {
    --blog-bg-dark: #08090a;
    --blog-text-primary: #FFFFFF;
    --blog-text-secondary: #8A8A8D;
    --blog-text-muted: #6B6B6E;
    --blog-border-color: rgba(255, 255, 255, 0.1);
    --blog-border-hover: rgba(255, 255, 255, 0.2);
    --blog-code-bg: rgba(0, 0, 0, 0.4);
    --blog-code-border: rgba(255, 255, 255, 0.15);
    --blog-link-color: #60A5FA;
    --blog-link-hover: #93C5FD;
    --blog-card-bg: rgba(10, 10, 10, 0.6);
    --blog-content-max-width: 760px;
    --blog-tag-bg: rgba(96, 165, 250, 0.12);
    --blog-tag-color: #60A5FA;
    --blog-tag-border: rgba(96, 165, 250, 0.25);
}

/* ============================================
   Blog Page Background
   ============================================ */

.blog-page {
    background-color: var(--blog-bg-dark);
    background-image:
        radial-gradient(circle at 20% 0%, rgba(0, 180, 255, 0.06) 0%, transparent 50%),
        radial-gradient(circle at 80% 100%, rgba(255, 107, 53, 0.04) 0%, transparent 50%);
    min-height: 100vh;
}

/* ============================================
   Blog List View
   ============================================ */

.blog-container {
    min-height: 100vh;
    position: relative;
    z-index: 10;
}

/* Blog Hero */
.blog-hero {
    padding: 10rem 2rem 3rem;
    text-align: center;
    border-bottom: 1px solid var(--blog-border-color);
    background:
        radial-gradient(ellipse 80% 50% at 50% 100%, rgba(96, 165, 250, 0.06) 0%, transparent 100%);
}

.blog-hero-inner {
    max-width: 640px;
    margin: 0 auto;
}

.blog-list-title {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--blog-text-primary);
    margin: 0 0 1rem 0;
    line-height: 1.15;
    letter-spacing: -0.03em;
}

.blog-list-description {
    font-size: 1.25rem;
    color: var(--blog-text-secondary);
    line-height: 1.6;
    margin: 0 auto 2rem;
    max-width: 500px;
}

.blog-wrapper {
    max-width: 960px;
    margin: 0 auto;
    padding: 3rem 2rem 6rem;
}

/* Category Filters */
.blog-filters {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.blog-filter-btn {
    padding: 0.5rem 1.25rem;
    border-radius: 9999px;
    border: 1px solid var(--blog-border-color);
    background: transparent;
    color: var(--blog-text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.blog-filter-btn:hover {
    border-color: var(--blog-border-hover);
    color: var(--blog-text-primary);
}

.blog-filter-btn.active {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--blog-border-hover);
    color: var(--blog-text-primary);
}

/* No Results */
.blog-no-results {
    text-align: center;
    color: var(--blog-text-muted);
    font-size: 1.0625rem;
    padding: 3rem 0;
}

/* Post Cards Grid */
.blog-posts {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.blog-card {
    display: block;
    background: var(--blog-card-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--blog-border-color);
    border-radius: 1rem;
    padding: 2rem 2.5rem;
    text-decoration: none;
    transition: border-color 0.25s ease, transform 0.25s ease;
}

.blog-card:hover {
    border-color: var(--blog-border-hover);
    transform: translateY(-2px);
}

.blog-card-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.875rem;
    flex-wrap: wrap;
}

.blog-card-date {
    font-size: 0.875rem;
    color: var(--blog-text-muted);
    font-weight: 500;
}

.blog-card-author {
    font-size: 0.875rem;
    color: var(--blog-text-muted);
}

.blog-card-author::before {
    content: "·";
    margin-right: 1rem;
    color: var(--blog-text-muted);
}

.blog-card-title {
    font-size: 1.625rem;
    font-weight: 600;
    color: var(--blog-text-primary);
    margin: 0 0 0.75rem 0;
    line-height: 1.3;
    letter-spacing: -0.01em;
}

.blog-card:hover .blog-card-title {
    color: var(--blog-link-color);
}

.blog-card-excerpt {
    font-size: 1.0625rem;
    color: var(--blog-text-secondary);
    line-height: 1.65;
    margin: 0 0 1rem 0;
}

.blog-card-category {
    display: inline-block;
    padding: 0.1875rem 0.75rem;
    background: var(--blog-tag-bg);
    border: 1px solid var(--blog-tag-border);
    border-radius: 9999px;
    font-size: 0.8125rem;
    color: var(--blog-tag-color);
    font-weight: 500;
    line-height: 1.4;
}

.blog-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.blog-tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--blog-tag-bg);
    border: 1px solid var(--blog-tag-border);
    border-radius: 9999px;
    font-size: 0.8125rem;
    color: var(--blog-tag-color);
    font-weight: 500;
    line-height: 1.4;
}

/* ============================================
   Blog Detail / Post View
   ============================================ */

.blog-post-container {
    min-height: 100vh;
    position: relative;
    z-index: 10;
    padding-top: 80px;
}

.blog-post-wrapper {
    max-width: var(--blog-content-max-width);
    margin: 0 auto;
    padding: 3rem 2rem 6rem;
}

/* Post Header */
.blog-post-header {
    margin-bottom: 3rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--blog-border-color);
}

.blog-post-back {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--blog-text-muted);
    text-decoration: none;
    margin-bottom: 2rem;
    transition: color 0.2s ease;
}

.blog-post-back:hover {
    color: var(--blog-link-color);
}

.blog-post-back svg {
    width: 16px;
    height: 16px;
}

.blog-post-title {
    font-size: 3rem;
    font-weight: 700;
    color: var(--blog-text-primary);
    margin: 0 0 1.25rem 0;
    line-height: 1.15;
    letter-spacing: -0.03em;
}

.blog-post-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.blog-post-date {
    font-size: 0.9375rem;
    color: var(--blog-text-muted);
    font-weight: 500;
}

.blog-post-author {
    font-size: 0.9375rem;
    color: var(--blog-text-secondary);
}

.blog-post-author::before {
    content: "·";
    margin-right: 1rem;
    color: var(--blog-text-muted);
}

.blog-post-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1.25rem;
}

/* Featured Image */
.blog-post-featured-image {
    margin-bottom: 3rem;
    border-radius: 1rem;
    overflow: hidden;
    border: 1px solid var(--blog-border-color);
}

.blog-post-featured-image img {
    width: 100%;
    height: auto;
    display: block;
}

/* Post Body */
.blog-post-body {
    color: var(--blog-text-primary);
}

.blog-post-body h2 {
    font-size: 2rem;
    font-weight: 600;
    color: var(--blog-text-primary);
    margin: 3rem 0 1.25rem 0;
    padding-bottom: 0.625rem;
    border-bottom: 1px solid var(--blog-border-color);
    line-height: 1.3;
    letter-spacing: -0.01em;
}

.blog-post-body h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--blog-text-primary);
    margin: 2.5rem 0 1rem 0;
    line-height: 1.4;
}

.blog-post-body h4 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--blog-text-primary);
    margin: 2rem 0 0.75rem 0;
    line-height: 1.4;
}

.blog-post-body p {
    font-size: 1.0625rem;
    line-height: 1.8;
    color: var(--blog-text-secondary);
    margin: 0 0 1.5rem 0;
}

.blog-post-body p:last-child {
    margin-bottom: 0;
}

.blog-post-body a {
    color: var(--blog-link-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
}

.blog-post-body a:hover {
    color: var(--blog-link-hover);
    text-decoration: underline;
}

.blog-post-body ul,
.blog-post-body ol {
    margin: 1.25rem 0;
    padding-left: 1.75rem;
    color: var(--blog-text-secondary);
    line-height: 1.8;
}

.blog-post-body li {
    margin-bottom: 0.625rem;
    font-size: 1.0625rem;
}

.blog-post-body li:last-child {
    margin-bottom: 0;
}

.blog-post-body strong {
    color: var(--blog-text-primary);
    font-weight: 600;
}

.blog-post-body blockquote {
    margin: 2rem 0;
    padding: 1.25rem 1.5rem;
    border-left: 4px solid var(--blog-link-color);
    background: rgba(96, 165, 250, 0.06);
    border-radius: 0 0.5rem 0.5rem 0;
    color: var(--blog-text-secondary);
    font-style: italic;
}

.blog-post-body blockquote p {
    margin: 0;
}

.blog-post-body code {
    background: var(--blog-code-bg);
    border: 1px solid var(--blog-code-border);
    border-radius: 0.375rem;
    padding: 0.125rem 0.5rem;
    font-family: 'SF Mono', Consolas, Monaco, 'Andale Mono', monospace;
    font-size: 0.9375rem;
    color: var(--blog-text-primary);
    font-weight: 500;
}

.blog-post-body pre {
    margin: 1.5rem 0;
    background: var(--blog-code-bg);
    border: 1px solid var(--blog-code-border);
    border-radius: 0.75rem;
    padding: 1.5rem;
    overflow-x: auto;
}

.blog-post-body pre code {
    background: none;
    border: none;
    padding: 0;
    font-size: 0.9375rem;
    line-height: 1.6;
    color: #E5E7EB;
    display: block;
}

.blog-post-body img {
    max-width: 100%;
    height: auto;
    border-radius: 0.75rem;
    margin: 2rem 0;
    border: 1px solid var(--blog-border-color);
}

.blog-post-body hr {
    border: none;
    border-top: 1px solid var(--blog-border-color);
    margin: 3rem 0;
}

/* Post Footer */
.blog-post-footer {
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid var(--blog-border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.blog-post-footer-back {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--blog-link-color);
    text-decoration: none;
    transition: color 0.2s ease;
}

.blog-post-footer-back:hover {
    color: var(--blog-link-hover);
}

.blog-post-footer-back svg {
    width: 16px;
    height: 16px;
}

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 768px) {
    .blog-hero {
        padding: 7rem 1.25rem 2.5rem;
    }

    .blog-post-container {
        padding-top: 70px;
    }

    .blog-wrapper,
    .blog-post-wrapper {
        padding: 2rem 1rem 4rem;
    }

    .blog-list-title {
        font-size: 2.5rem;
    }

    .blog-list-description {
        font-size: 1.0625rem;
        margin-bottom: 1.5rem;
    }

    .blog-card {
        padding: 1.5rem;
    }

    .blog-card-title {
        font-size: 1.375rem;
    }

    .blog-card-excerpt {
        font-size: 1rem;
    }

    .blog-post-title {
        font-size: 2.25rem;
    }

    .blog-post-body h2 {
        font-size: 1.625rem;
    }

    .blog-post-body h3 {
        font-size: 1.25rem;
    }

    .blog-post-body p,
    .blog-post-body li {
        font-size: 1rem;
    }

    .blog-post-body pre {
        padding: 1rem;
        border-radius: 0.5rem;
    }

    .blog-post-body pre code {
        font-size: 0.875rem;
    }
}

@media (max-width: 480px) {
    .blog-list-title {
        font-size: 2rem;
    }

    .blog-post-title {
        font-size: 1.875rem;
    }

    .blog-card {
        padding: 1.25rem;
    }

    .blog-hero {
        padding: 6.5rem 1rem 2rem;
    }
}

/* Print styles */
@media print {
    .blog-post-back,
    .blog-post-footer {
        display: none;
    }

    .blog-post-body pre {
        page-break-inside: avoid;
    }
}