/* ============================================================
   ReplyReview Blog — scoped styles
   Lives ONLY under /blog. Does not touch the global style.css.
   ============================================================ */

:root {
    /* Blog-specific palette (purple accent in the AppReply spirit) */
    --blog-accent: #7C3AED;
    --blog-accent-hover: #6D28D9;
    --blog-accent-soft: rgba(124, 58, 237, 0.10);
    --blog-text: #0B0B14;
    --blog-text-2: #4A5168;
    --blog-text-3: #7A869A;
    --blog-bg: #FFFFFF;
    --blog-bg-alt: #FAFAFC;
    --blog-border: rgba(15, 23, 42, 0.10);
    --blog-radius: 16px;
    --blog-radius-lg: 22px;
    --blog-shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
    --blog-shadow-md: 0 6px 24px rgba(15, 23, 42, 0.08);
    --blog-shadow-lg: 0 18px 50px rgba(15, 23, 42, 0.14);
}

.blog-root {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--blog-text);
    background: var(--blog-bg);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
}

/* When dark mode is active (set by /js/theme.js or blog.js on <html>),
   paint the whole page background dark so the corners outside
   .blog-container don't show the white <body>. */
html[data-theme="dark"],
html[data-theme="dark"] body {
    background: #0B0B14;
}

.blog-root *,
.blog-root *::before,
.blog-root *::after {
    box-sizing: border-box;
}

.blog-container {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ---------- Sub-header ---------- */
.blog-subheader {
    border-bottom: 1px solid var(--blog-border);
    background: #fff;
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(8px);
}

.blog-subheader-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.9rem 0;
}

.blog-brand {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    text-decoration: none;
    color: var(--blog-text);
    font-weight: 700;
    font-size: 1.05rem;
}

.blog-brand .dot {
    width: 10px;
    height: 10px;
    border-radius: 999px;
    background: var(--blog-accent);
    display: inline-block;
}

.blog-nav {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.blog-nav a {
    color: var(--blog-text-2);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: color .15s ease;
}

.blog-nav a:hover { color: var(--blog-text); }
.blog-nav a.active { color: var(--blog-text); font-weight: 600; }

.blog-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: var(--blog-accent);
    color: #fff !important;
    padding: 0.55rem 1.05rem;
    border-radius: 999px;
    font-weight: 600;
    font-size: 0.9rem;
    transition: background .15s ease, transform .15s ease;
}

.blog-cta:hover { background: var(--blog-accent-hover); transform: translateY(-1px); }

/* ---------- Hero ---------- */
.blog-hero {
    text-align: center;
    padding: 4.5rem 0 2.5rem;
}

.blog-hero h1 {
    font-size: clamp(2.4rem, 5vw, 3.4rem);
    font-weight: 800;
    letter-spacing: -0.025em;
    margin: 0 0 0.85rem;
    line-height: 1.1;
}

.blog-hero p {
    color: var(--blog-text-2);
    font-size: 1.1rem;
    max-width: 580px;
    margin: 0 auto;
}

/* ---------- Featured ---------- */
.blog-featured {
    position: relative;
    border-radius: var(--blog-radius-lg);
    overflow: hidden;
    margin: 2rem 0 3rem;
    min-height: 380px;
    background:
        radial-gradient(1200px 400px at 70% -10%, rgba(124,58,237,0.35), transparent 60%),
        radial-gradient(800px 400px at 10% 110%, rgba(34,211,238,0.18), transparent 60%),
        linear-gradient(135deg, #0F0B1F 0%, #1A1030 100%);
    color: #fff;
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    align-items: stretch;
    box-shadow: var(--blog-shadow-lg);
}

.blog-featured-text {
    padding: 3rem 2.5rem;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
}

.blog-featured-meta {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.85rem;
    color: rgba(255,255,255,0.72);
    margin-bottom: 1rem;
}

.blog-featured-meta .sep { opacity: 0.5; }

.blog-featured h2 {
    font-size: clamp(1.8rem, 3vw, 2.4rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.15;
    margin: 0 0 0.85rem;
    color: #fff;
}

.blog-featured-desc {
    color: rgba(255,255,255,0.82);
    font-size: 1rem;
    margin: 0 0 1.5rem;
    max-width: 540px;
}

.blog-author {
    display: flex;
    align-items: center;
    gap: 0.7rem;
}

.blog-author-avatar {
    width: 36px;
    height: 36px;
    border-radius: 999px;
    background: linear-gradient(135deg, #7C3AED, #22D3EE);
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
}

.blog-author-name {
    color: #fff;
    font-weight: 600;
    font-size: 0.92rem;
    line-height: 1.1;
}

.blog-author-role {
    color: rgba(255,255,255,0.6);
    font-size: 0.78rem;
}

.blog-featured-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.blog-featured-visual .mock {
    width: 100%;
    max-width: 360px;
    aspect-ratio: 9 / 16;
    border-radius: 28px;
    background:
        linear-gradient(180deg, #1f1633 0%, #120a25 100%);
    box-shadow: 0 30px 60px rgba(0,0,0,0.45), inset 0 0 0 1px rgba(255,255,255,0.06);
    position: relative;
}

.blog-featured-visual .mock::after {
    content: "★ ★ ★ ★ ★";
    position: absolute;
    top: 38%;
    left: 0; right: 0;
    text-align: center;
    color: #F59E0B;
    font-size: 1.3rem;
    letter-spacing: 0.4em;
}

a.blog-featured-link {
    position: absolute;
    inset: 0;
    text-decoration: none;
    color: transparent;
}

a.blog-featured-link:focus-visible {
    outline: 3px solid var(--blog-accent);
    outline-offset: 4px;
}

/* ---------- Tabs ---------- */
.blog-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem 1.75rem;
    border-bottom: 1px solid var(--blog-border);
    margin: 0 0 2rem;
}

.blog-tab {
    background: none;
    border: 0;
    padding: 0.85rem 0;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--blog-text-2);
    cursor: pointer;
    position: relative;
    font-family: inherit;
    transition: color .15s ease;
}

.blog-tab:hover { color: var(--blog-text); }

.blog-tab[aria-selected="true"] {
    color: var(--blog-text);
    font-weight: 600;
}

.blog-tab[aria-selected="true"]::after {
    content: "";
    position: absolute;
    left: 0; right: 0; bottom: -1px;
    height: 2px;
    background: var(--blog-text);
    border-radius: 2px;
}

/* ---------- Grid ---------- */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-bottom: 4rem;
}

.blog-card {
    background: var(--blog-bg);
    border: 1px solid var(--blog-border);
    border-radius: var(--blog-radius);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    text-decoration: none;
    color: inherit;
}

.blog-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--blog-shadow-md);
    border-color: rgba(15,23,42,0.16);
}

.blog-card-cover {
    aspect-ratio: 16 / 9;
    background:
        radial-gradient(600px 200px at 80% 0%, rgba(124,58,237,0.45), transparent 60%),
        linear-gradient(135deg, #1A1030 0%, #0F0B1F 100%);
    position: relative;
}

.blog-card-cover[data-variant="pink"] {
    background:
        radial-gradient(500px 200px at 0% 100%, rgba(244,114,182,0.45), transparent 60%),
        linear-gradient(135deg, #FCE7F3 0%, #DBEAFE 100%);
}
.blog-card-cover[data-variant="mint"] {
    background:
        radial-gradient(500px 200px at 100% 0%, rgba(34,211,238,0.4), transparent 60%),
        linear-gradient(135deg, #ECFDF5 0%, #DBEAFE 100%);
}
.blog-card-cover[data-variant="dark"] {
    background:
        radial-gradient(600px 200px at 80% 0%, rgba(124,58,237,0.55), transparent 60%),
        linear-gradient(135deg, #0B0B14 0%, #1A1030 100%);
}

.blog-card-body {
    padding: 1.5rem 1.5rem 1.75rem;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.blog-card-cat {
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--blog-accent);
    margin-bottom: 0.6rem;
}

.blog-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    line-height: 1.3;
    margin: 0 0 0.6rem;
    color: var(--blog-text);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-card p {
    color: var(--blog-text-2);
    font-size: 0.95rem;
    margin: 0 0 1.25rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-card-meta {
    margin-top: auto;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 0.85rem;
    color: var(--blog-text-3);
}

.blog-card-meta .avatar {
    width: 26px;
    height: 26px;
    border-radius: 999px;
    background: linear-gradient(135deg, #7C3AED, #22D3EE);
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.7rem;
}

/* ---------- Footer CTA ---------- */
.blog-footer-cta {
    background: linear-gradient(135deg, #0F0B1F 0%, #1A1030 100%);
    color: #fff;
    border-radius: var(--blog-radius-lg);
    padding: 3rem 2rem;
    text-align: center;
    margin: 1rem 0 3rem;
}

.blog-footer-cta h2 {
    font-size: clamp(1.6rem, 3vw, 2.1rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin: 0 0 0.6rem;
    color: #fff;
}

.blog-footer-cta p {
    color: rgba(255,255,255,0.78);
    margin: 0 auto 1.5rem;
    max-width: 520px;
}

.blog-footer-cta .blog-cta {
    background: #fff;
    color: var(--blog-accent) !important;
}
.blog-footer-cta .blog-cta:hover { background: #f3f3f7; }

.blog-footer {
    border-top: 1px solid var(--blog-border);
    padding: 2rem 0;
    color: var(--blog-text-3);
    font-size: 0.88rem;
    text-align: center;
}

.blog-footer a { color: var(--blog-text-2); text-decoration: none; }
.blog-footer a:hover { color: var(--blog-text); }

/* ============================================================
   Article (post) page
   ============================================================ */
.blog-article {
    max-width: 760px;
    margin: 0 auto;
    padding: 2.5rem 1.5rem 4rem;
}

.blog-article .back {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    color: var(--blog-text-2);
    text-decoration: none;
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
}
.blog-article .back:hover { color: var(--blog-text); }

.blog-article .cat {
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--blog-accent);
    margin-bottom: 0.85rem;
}

.blog-article h1 {
    font-size: clamp(2rem, 4.2vw, 2.9rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.15;
    margin: 0 0 1rem;
}

.blog-article-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.75rem;
    color: var(--blog-text-3);
    font-size: 0.92rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--blog-border);
}

.blog-article-cover {
    width: 100%;
    aspect-ratio: 16 / 8;
    border-radius: var(--blog-radius);
    background:
        radial-gradient(800px 300px at 80% 0%, rgba(124,58,237,0.55), transparent 60%),
        linear-gradient(135deg, #0F0B1F 0%, #1A1030 100%);
    margin-bottom: 2rem;
}

.blog-article .summary {
    background: var(--blog-accent-soft);
    border-left: 3px solid var(--blog-accent);
    border-radius: 12px;
    padding: 1rem 1.25rem;
    margin: 1.5rem 0 2rem;
    color: var(--blog-text);
    font-size: 0.98rem;
}

.blog-article .summary strong {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--blog-accent);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 0.75rem;
    margin-bottom: 0.4rem;
}

.blog-article h2 {
    font-size: 1.7rem;
    font-weight: 700;
    letter-spacing: -0.015em;
    margin: 2.5rem 0 0.85rem;
    line-height: 1.25;
}

.blog-article h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin: 1.75rem 0 0.6rem;
}

.blog-article p,
.blog-article li {
    color: var(--blog-text);
    font-size: 1.05rem;
    line-height: 1.8;
}

.blog-article p { margin: 0 0 1.1rem; }

.blog-article ul, .blog-article ol { padding-left: 1.4rem; margin: 0 0 1.2rem; }
.blog-article li { margin-bottom: 0.5rem; }

.blog-article a {
    color: var(--blog-accent);
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 3px;
}

.blog-article a:hover { color: var(--blog-accent-hover); }

.blog-article blockquote {
    border-left: 3px solid var(--blog-accent);
    padding: 0.4rem 0 0.4rem 1.2rem;
    color: var(--blog-text-2);
    font-style: italic;
    margin: 1.5rem 0;
}

.blog-article code {
    background: #F3F3F7;
    padding: 0.15rem 0.4rem;
    border-radius: 6px;
    font-size: 0.92em;
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

.blog-article pre {
    background: #0B0B14;
    color: #E5E7EB;
    padding: 1rem 1.1rem;
    border-radius: 12px;
    overflow-x: auto;
    margin: 1rem 0 1.5rem;
    font-size: 0.9rem;
    line-height: 1.55;
}

.blog-article pre code {
    background: transparent;
    padding: 0;
    color: inherit;
}

.blog-article table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.25rem 0 1.75rem;
    font-size: 0.95rem;
}

.blog-article th, .blog-article td {
    text-align: left;
    padding: 0.7rem 0.8rem;
    border-bottom: 1px solid var(--blog-border);
}

.blog-article th {
    background: var(--blog-bg-alt);
    font-weight: 700;
    color: var(--blog-text);
}

.blog-article .inline-cta {
    background: var(--blog-bg-alt);
    border: 1px solid var(--blog-border);
    border-radius: var(--blog-radius);
    padding: 1.25rem 1.4rem;
    margin: 2rem 0;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.blog-article .inline-cta p { margin: 0; font-weight: 600; }

.blog-related {
    border-top: 1px solid var(--blog-border);
    margin-top: 3rem;
    padding-top: 2rem;
}

.blog-related h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin: 0 0 1.25rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--blog-text-2);
}

.blog-related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
}

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
    .blog-featured { grid-template-columns: 1fr; min-height: auto; }
    .blog-featured-visual { display: none; }
    .blog-featured-text { padding: 2.5rem 1.75rem; }
    .blog-grid { grid-template-columns: 1fr; gap: 1.5rem; }
    .blog-related-grid { grid-template-columns: 1fr; }
    .blog-nav { gap: 1rem; }
    .blog-nav a:not(.blog-cta) { display: none; }
}

/* ---------- Dark mode (shared site-wide, opt-in via <html data-theme="dark">) ---------- */
html[data-theme="dark"] .blog-root {
    --blog-bg: #0B0B14;
    --blog-bg-alt: #14101F;
    --blog-text: #F5F5F7;
    --blog-text-2: #B7BCCB;
    --blog-text-3: #8C92A6;
    --blog-border: rgba(255,255,255,0.10);
}

html[data-theme="dark"] .blog-subheader { background: rgba(11,11,20,0.9); }
html[data-theme="dark"] .blog-card { background: var(--blog-bg-alt); }
html[data-theme="dark"] .blog-article code { background: #1F1B2E; }
html[data-theme="dark"] .blog-article th { background: var(--blog-bg-alt); }

.blog-theme-toggle {
    background: none;
    border: 1px solid var(--blog-border);
    color: var(--blog-text-2);
    width: 34px;
    height: 34px;
    border-radius: 999px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.95rem;
    transition: background .15s ease, color .15s ease;
}
.blog-theme-toggle:hover { color: var(--blog-text); }
