/* ========================================
   Blog Pages — seatwiz
   Polished magazine-style layout
   ======================================== */

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

:root {
    --blog-bg: #FAFAFA;
    --blog-surface: #FFFFFF;
    --blog-card: #FFFFFF;
    --blog-border: #f1f5f9;
    --blog-text: #111827;
    --blog-text-secondary: #475569;
    --blog-muted: #94a3b8;
    --blog-accent: #FF5F5F;
    --blog-accent-hover: #FF8B5A;
    --blog-radius: 16px;
    --blog-shadow: 0 1px 3px rgba(0,0,0,0.04), 0 6px 16px -4px rgba(0,0,0,0.06);
    --blog-shadow-hover: 0 8px 30px rgba(0,0,0,0.1);
}

@media (prefers-color-scheme: dark) {
    :root {
        --blog-bg: #0a0f1a;
        --blog-surface: #111827;
        --blog-card: #1a2332;
        --blog-border: #1e293b;
        --blog-text: #f1f5f9;
        --blog-text-secondary: #94a3b8;
        --blog-muted: #64748b;
        --blog-accent: #FFD45A;
        --blog-accent-hover: #FF5F5F;
        --blog-shadow: 0 1px 3px rgba(0,0,0,0.2), 0 6px 16px -4px rgba(0,0,0,0.3);
        --blog-shadow-hover: 0 8px 30px rgba(0,0,0,0.4);
    }
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: var(--blog-bg);
    color: var(--blog-text);
    line-height: 1.6;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a { color: var(--blog-accent); text-decoration: none; }
a:hover { color: var(--blog-accent-hover); }

/* ── Animations ── */

@keyframes fadeIn { from { opacity:0 } to { opacity:1 } }
@keyframes slideUp { from { opacity:0; transform:translateY(20px) } to { opacity:1; transform:translateY(0) } }

.animate-up {
    animation: slideUp 0.5s ease-out both;
}
.stagger-2 { animation-delay: 0.1s; }
.stagger-3 { animation-delay: 0.2s; }

/* ── Header ── */

.blog-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(10,15,26,0.85);
    border-bottom: 1px solid var(--blog-border);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}
@media (prefers-color-scheme: light) {
    .blog-header { background: rgba(255,255,255,0.88); }
}
.blog-header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    height: 54px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.blog-brand {
    display: inline-flex;
    align-items: center;
    padding: 4px 6px;
    margin-left: -6px;  /* keep the logo flush with the header edge */
    border-radius: 10px;
    transition: background 0.2s, transform 0.2s;
}
.blog-brand:hover {
    background: rgba(255,255,255,0.06);
    transform: translateY(-1px);
}
.blog-brand-logo {
    height: 28px;
    width: auto;
    display: block;
    transition: opacity 0.2s;
}
.blog-brand:hover .blog-brand-logo { opacity: 0.85; }

/* Default (light mode): show the dark-text logo, hide the light one */
.blog-brand-logo.logo-light { display: none; }
@media (prefers-color-scheme: dark) {
    .blog-brand-logo.logo-dark { display: none; }
    .blog-brand-logo.logo-light { display: block; }
}
@media (max-width: 600px) {
    .blog-brand-logo { height: 24px; }
}

.blog-nav { display: flex; align-items: center; gap: 6px; }
.blog-nav-link {
    padding: 6px 14px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    color: var(--blog-text-secondary);
    transition: all 0.2s;
}
.blog-nav-link:hover { color: var(--blog-text); background: rgba(255,255,255,0.06); }

/* Right-aligned "Back to app" pill — leads with a left-arrow icon and uses
   the brand accent so it reads as the primary way out of the blog. */
.blog-back-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 14px 7px 12px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
    color: #ffffff;
    background: linear-gradient(135deg, var(--blog-accent), var(--blog-accent-hover));
    box-shadow: 0 4px 12px -4px color-mix(in srgb, var(--blog-accent) 60%, transparent);
    transition: transform 0.2s, box-shadow 0.2s, filter 0.2s;
    margin-left: 4px;
}
.blog-back-btn:hover {
    color: #ffffff;
    transform: translateY(-1px);
    filter: brightness(1.05);
    box-shadow: 0 6px 16px -4px color-mix(in srgb, var(--blog-accent) 70%, transparent);
}
.blog-back-btn:active { transform: translateY(0); filter: brightness(0.97); }
.blog-back-btn-icon {
    width: 14px;
    height: 14px;
    flex: 0 0 auto;
    transition: transform 0.2s;
}
.blog-back-btn:hover .blog-back-btn-icon { transform: translateX(-2px); }

@media (max-width: 520px) {
    .blog-back-btn { padding: 6px 10px; font-size: 12px; }
    .blog-back-btn span { display: none; }  /* icon-only on small screens */
    .blog-back-btn { padding: 7px; }
}

/* ── List Hero ── */

.blog-list-hero {
    text-align: center;
    padding: 64px 24px 36px;
    animation: fadeIn 0.6s ease-out;
}
.blog-list-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--blog-text), var(--blog-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.blog-list-subtitle {
    margin-top: 10px;
    font-size: 17px;
    color: var(--blog-text-secondary);
}

/* ── Tag filter ── */

.blog-tags-filter {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
    padding: 0 24px 40px;
    max-width: 900px;
    margin: 0 auto;
}
.blog-tag-chip {
    display: inline-block;
    padding: 7px 16px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 500;
    background: var(--blog-surface);
    border: 1px solid var(--blog-border);
    color: var(--blog-text-secondary);
    transition: all 0.2s;
}
.blog-tag-chip:hover {
    border-color: var(--blog-accent);
    color: var(--blog-accent);
}
.blog-tag-chip.active {
    background: var(--blog-accent);
    border-color: var(--blog-accent);
    color: #000;
}

/* ── Featured article ── */

.blog-featured {
    display: block;
    max-width: 1200px;
    margin: 0 auto 40px;
    padding: 0 24px;
    color: #fff;
}
.blog-featured-img {
    position: relative;
    height: 300px;
    border-radius: var(--blog-radius);
    background-size: cover;
    background-position: center;
    background-color: var(--blog-surface);
    overflow: hidden;
    transition: transform 0.3s;
}
.blog-featured:hover .blog-featured-img { transform: scale(1.01); }
.blog-featured-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.8) 0%, rgba(0,0,0,0.2) 50%, transparent 100%);
}
.blog-featured-content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 28px 32px;
}
.blog-featured-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    color: rgba(255,255,255,0.7);
    margin-bottom: 12px;
}
.blog-featured-tag {
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    background: var(--blog-accent);
    color: #000;
}
.blog-featured-title {
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.01em;
    color: #fff;
    margin-bottom: 10px;
}
.blog-featured-excerpt {
    font-size: 16px;
    color: rgba(255,255,255,0.75);
    line-height: 1.5;
    max-width: 600px;
}
.blog-featured-author {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 16px;
    font-size: 14px;
    color: rgba(255,255,255,0.8);
}
.blog-featured-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--blog-accent);
    color: #000;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 14px;
}

/* ── Card grid ── */

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 28px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px 56px;
}
.blog-card {
    display: flex;
    flex-direction: column;
    background: var(--blog-card);
    border-radius: var(--blog-radius);
    border: 1px solid var(--blog-border);
    overflow: hidden;
    transition: transform 0.25s, box-shadow 0.25s;
    color: var(--blog-text);
}
.blog-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--blog-shadow-hover);
    color: var(--blog-text);
}
.blog-card-img {
    position: relative;
    height: 210px;
    background-size: cover;
    background-position: center;
    background-color: var(--blog-border);
    overflow: hidden;
}
.blog-card-img > img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.blog-card-img--placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--blog-muted);
}
.blog-card-body {
    padding: 22px;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.blog-card-tags {
    display: flex;
    gap: 6px;
    margin-bottom: 10px;
}
.blog-card-tag {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--blog-accent);
}
.blog-card-title {
    font-size: 18px;
    font-weight: 600;
    line-height: 1.35;
    margin-bottom: 8px;
}
.blog-card-excerpt {
    font-size: 14px;
    color: var(--blog-text-secondary);
    line-height: 1.55;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.blog-card-meta {
    display: flex;
    gap: 10px;
    margin-top: 16px;
    font-size: 13px;
    color: var(--blog-muted);
}

/* ── Pagination ── */

.blog-pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    padding: 0 24px 56px;
}
.blog-page-btn {
    padding: 10px 22px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    background: var(--blog-surface);
    border: 1px solid var(--blog-border);
    color: var(--blog-text-secondary);
    transition: all 0.2s;
}
.blog-page-btn:hover {
    border-color: var(--blog-accent);
    color: var(--blog-accent);
}
.blog-page-info {
    font-size: 14px;
    color: var(--blog-muted);
}

.blog-empty {
    text-align: center;
    padding: 100px 24px;
    font-size: 17px;
    color: var(--blog-muted);
}

/* ========================================
   Article Page
   ======================================== */

/* ── Back nav ── */

.article-back-nav {
    max-width: 900px;
    margin: 0 auto;
    padding: 20px 24px 0;
}
.article-back-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    color: var(--blog-muted);
    transition: color 0.2s;
}
.article-back-link:hover { color: var(--blog-accent); }

/* ── Hero image ── */

.article-hero-image {
    position: relative;
    width: 100%;
    max-width: 794px;            /* A4 width @ 96dpi */
    margin: 32px auto 0;
    border-radius: 12px;
    overflow: hidden;
}

.article-hero-image img {
    width: 100%;
    height: auto;
    display: block;
}
.article-hero-gradient { display: none; }

/* ── Article container — A4 reading width, natural blog feel ── */

.article-container {
    max-width: 794px;            /* A4 width @ 96dpi (≈210mm) */
    margin: 0 auto 80px;
    padding: 48px 96px 64px;     /* ~1in side padding → text column matches A4 with margins */
    background: transparent;
    border-radius: 0;
    box-shadow: none;
}
.article-container.has-hero {
    margin-top: 0;
    padding-top: 36px;
}

/* ── Article header ── */

.article-header {
    margin-bottom: 48px;
}
.article-header-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}
.article-category-tag {
    padding: 6px 16px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
    background: rgba(255,95,95,0.15);
    color: var(--blog-accent);
}
.article-date,
.article-read-time {
    font-size: 14px;
    color: var(--blog-muted);
}
.article-meta-dot {
    color: var(--blog-muted);
}
.article-title {
    font-size: clamp(2rem, 5vw, 3.25rem);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.03em;
    margin-bottom: 14px;
}
.article-subtitle {
    font-size: 19px;
    line-height: 1.5;
    color: var(--blog-text-secondary);
    margin-bottom: 32px;
}

/* ── Author & share row ── */

.article-author-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 0;
    border-top: 1px solid var(--blog-border);
    border-bottom: 1px solid var(--blog-border);
    gap: 16px;
}
.article-author {
    display: flex;
    align-items: center;
    gap: 12px;
}
.article-author-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--blog-accent), #FF8B5A);
    color: #000;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 18px;
    flex-shrink: 0;
}
.article-author-info {
    display: flex;
    flex-direction: column;
}
.article-author-name {
    font-weight: 600;
    font-size: 15px;
}
.article-author-bio {
    font-size: 13px;
    color: var(--blog-muted);
}

/* Share buttons */
.article-share-btns {
    display: none;
    gap: 8px;
}
@media (min-width: 768px) {
    .article-share-btns { display: flex; }
}
.article-share-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid var(--blog-border);
    background: none;
    color: var(--blog-text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s;
    position: relative;
}
.article-share-btn:hover {
    border-color: var(--blog-accent);
    color: var(--blog-accent);
    background: rgba(255,95,95,0.06);
}
.share-tooltip {
    position: absolute;
    bottom: -28px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 11px;
    background: var(--blog-text);
    color: var(--blog-bg);
    padding: 3px 8px;
    border-radius: 4px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
}
.share-tooltip.show { opacity: 1; }

/* ── Article body ── */

.article-body {
    font-size: 17px;
    line-height: 1.8;
    color: var(--blog-text-secondary);
    font-weight: 400;
    margin-bottom: 48px;
}
.article-body h1,
.article-body h2,
.article-body h3,
.article-body h4 {
    margin-top: 1.6em;
    margin-bottom: 0.6em;
    font-weight: 700;
    line-height: 1.3;
    letter-spacing: -0.01em;
}
.article-body h2 { font-size: 1.65em; }
.article-body h3 { font-size: 1.3em; }
.article-body p { margin-bottom: 1.1em; }
.article-body a {
    color: var(--blog-accent);
    text-decoration: underline;
    text-decoration-color: rgba(255,95,95,0.3);
    text-underline-offset: 3px;
    transition: text-decoration-color 0.2s;
}
.article-body a:hover { text-decoration-color: var(--blog-accent); }
.article-body img {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    margin: 1.5em 0;
}
.article-body ul,
.article-body ol {
    margin: 0.6em 0 1.2em 1.5em;
}
.article-body li { margin-bottom: 0.4em; }
.article-body blockquote {
    margin: 1.5em 0;
    padding: 20px 24px;
    border-left: 4px solid var(--blog-accent);
    background: var(--blog-surface);
    border-radius: 0 12px 12px 0;
    color: var(--blog-text);
    font-style: italic;
    font-size: 18px;
    line-height: 1.6;
}
.article-body pre {
    margin: 1.5em 0;
    padding: 20px 24px;
    background: var(--blog-surface);
    border: 1px solid var(--blog-border);
    border-radius: 12px;
    overflow-x: auto;
    font-size: 14px;
    line-height: 1.6;
}
.article-body code {
    font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
    font-size: 0.88em;
}
.article-body p code {
    padding: 2px 7px;
    background: var(--blog-surface);
    border: 1px solid var(--blog-border);
    border-radius: 5px;
}
.article-body table {
    width: 100%;
    margin: 1.2em 0;
    border-collapse: collapse;
    border-radius: 10px;
    overflow: hidden;
}
.article-body th,
.article-body td {
    padding: 12px 16px;
    border: 1px solid var(--blog-border);
    text-align: left;
}
.article-body th {
    background: var(--blog-surface);
    font-weight: 600;
}

/* ── Tags section ── */

.article-tags-section {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    padding-bottom: 36px;
    border-bottom: 1px solid var(--blog-border);
    margin-bottom: 36px;
}
.article-tag-pill {
    padding: 8px 18px;
    border-radius: 999px;
    font-size: 14px;
    background: var(--blog-surface);
    border: 1px solid var(--blog-border);
    color: var(--blog-text);
    transition: all 0.2s;
}
.article-tag-pill:hover {
    border-color: var(--blog-accent);
    color: var(--blog-accent);
}

/* ── Mobile share ── */

.article-mobile-share {
    display: block;
    padding-bottom: 36px;
    border-bottom: 1px solid var(--blog-border);
    margin-bottom: 36px;
}
@media (min-width: 768px) {
    .article-mobile-share { display: none; }
}
.article-mobile-share-title {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 12px;
}
.article-mobile-share-btns {
    display: flex;
    gap: 10px;
}
.article-share-btn-wide {
    flex: 1;
    padding: 12px;
    border-radius: 999px;
    border: 1px solid var(--blog-border);
    background: none;
    color: var(--blog-text-secondary);
    font-size: 14px;
    font-family: inherit;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.2s;
}
.article-share-btn-wide:hover {
    border-color: var(--blog-accent);
    color: var(--blog-accent);
}

/* ── Newsletter CTA ── */

.article-newsletter {
    background: var(--blog-card);
    border: 1px solid var(--blog-border);
    border-radius: 20px;
    padding: 40px 36px;
    text-align: center;
    margin-bottom: 40px;
}
.article-newsletter-title {
    font-size: clamp(1.3rem, 3vw, 1.75rem);
    font-weight: 700;
    margin-bottom: 10px;
}
.article-newsletter-text {
    color: var(--blog-text-secondary);
    font-size: 15px;
    margin-bottom: 24px;
}
.article-newsletter-form {
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-width: 420px;
    margin: 0 auto;
}
@media (min-width: 480px) {
    .article-newsletter-form { flex-direction: row; }
}
.article-newsletter-input {
    flex: 1;
    padding: 12px 18px;
    border-radius: 999px;
    border: 1px solid var(--blog-border);
    background: var(--blog-bg);
    color: var(--blog-text);
    font-size: 15px;
    font-family: inherit;
    outline: none;
    transition: border-color 0.2s;
}
.article-newsletter-input:focus { border-color: var(--blog-accent); }
.article-newsletter-input::placeholder { color: var(--blog-muted); }
.article-newsletter-btn {
    padding: 12px 28px;
    border-radius: 999px;
    border: none;
    background: var(--blog-accent);
    color: #000;
    font-size: 15px;
    font-weight: 700;
    font-family: inherit;
    cursor: pointer;
    transition: opacity 0.2s;
    white-space: nowrap;
}
.article-newsletter-btn:hover { opacity: 0.88; }

/* ── Related articles ── */

.article-related {
    background: var(--blog-surface);
    padding: 64px 0;
}
.article-related-inner {
    max-width: 794px;            /* match A4 article width above */
    margin: 0 auto;
    padding: 0 24px;
}
.article-related-title {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 700;
    margin-bottom: 32px;
}
.article-related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
}

/* ── Footer ── */

.blog-footer {
    border-top: 1px solid var(--blog-border);
    padding: 28px 24px;
    text-align: center;
}
.blog-footer-inner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 13px;
    color: var(--blog-muted);
}
.blog-footer-brand { font-weight: 700; color: var(--blog-text-secondary); }

/* ── Block content: images with alignment ── */

.blog-block-image {
    margin: 2em 0;
}
.blog-block-image img {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    display: block;
}
.blog-block-image figcaption {
    margin-top: 10px;
    font-size: 14px;
    color: var(--blog-muted);
    line-height: 1.5;
}
.blog-block-image.align-center {
    text-align: center;
}
.blog-block-image.align-center img {
    margin: 0 auto;
}
.blog-block-image.align-left {
    float: left;
    margin: 0.5em 2em 1.5em 0;
    max-width: 50%;
}
.blog-block-image.align-right {
    float: right;
    margin: 0.5em 0 1.5em 2em;
    max-width: 50%;
}
.blog-block-image.align-left figcaption,
.blog-block-image.align-right figcaption {
    text-align: center;
}

/* Clear floats after aligned images */
.article-body::after {
    content: "";
    display: table;
    clear: both;
}

/* Blockquote citation */
.article-body blockquote cite {
    display: block;
    margin-top: 10px;
    font-size: 14px;
    font-style: normal;
    color: var(--blog-muted);
}
.article-body blockquote cite::before {
    content: "\2014\00a0";
}

/* Code blocks with syntax highlighting */
.article-body pre code {
    display: block;
    overflow-x: auto;
    padding: 0;
}
.article-body pre {
    position: relative;
}
.article-body pre code[class*="language-"]::before {
    content: attr(class);
    position: absolute;
    top: 8px;
    right: 12px;
    font-size: 11px;
    color: var(--blog-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Divider */
.article-body hr {
    border: none;
    border-top: 1px solid var(--blog-border);
    margin: 2.5em auto;
    max-width: 120px;
}

/* ── Responsive ── */

@media (max-width: 640px) {
    .blog-grid { grid-template-columns: 1fr; gap: 20px; }
    .blog-card-img { height: 190px; }
    .blog-featured-img { height: 220px; }
    .blog-featured-content { padding: 20px; }
    .blog-featured-title { font-size: 1.3rem; }
    .article-hero-image {
        margin-top: 16px;
        border-radius: 10px;
    }
    .article-container {
        margin: 0 auto 40px;
        padding: 32px 20px 48px;
    }
    .article-container.has-hero { padding-top: 24px; }
    .article-body { font-size: 16px; }
    .article-newsletter { padding: 28px 20px; }
    .article-related-grid { grid-template-columns: 1fr; }
    .blog-block-image.align-left,
    .blog-block-image.align-right {
        float: none;
        max-width: 100%;
        margin: 1.5em 0;
    }
}