/* ============================================================
   BizTechDaily — site styles
   Light, content-first, optimized for long-form readability + AdSense
   ============================================================ */

:root {
    --btd-bg:        #ffffff;
    --btd-surface:   #fafaf7;
    --btd-text:      #18181b;
    --btd-muted:     #6b7280;
    --btd-border:    #e5e7eb;
    --btd-accent:    #0a3d62;     /* deep blue — works with all logo concepts */
    --btd-accent-2:  #FF6B35;     /* warm secondary, used sparingly */
    --btd-bottom-bg: #fff8e1;
    --btd-bottom-bd: #f4c430;

    --btd-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
    --btd-serif: 'Source Serif 4', Georgia, Cambria, 'Times New Roman', serif;
}

/* Base */
html { font-size: 17px; scroll-behavior: smooth; }
body {
    font-family: var(--btd-sans);
    color: var(--btd-text);
    background: var(--btd-bg);
    margin: 0;
    line-height: 1.55;
}
a { color: var(--btd-accent); text-decoration: none; }
a:hover { text-decoration: underline; }

img { max-width: 100%; height: auto; }

/* Nav */
.btd-nav {
    background: rgba(255, 255, 255, 0.95);
    border-bottom: 1px solid var(--btd-border);
    backdrop-filter: blur(8px);
}
.btd-brand img {
    height: 38px;
    display: block;
}
.btd-nav-links {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 1.25rem;
    align-items: center;
}
.btd-nav-links a {
    color: var(--btd-text);
    font-weight: 500;
    font-size: 0.95rem;
}
.btd-nav-links a:hover { color: var(--btd-accent); text-decoration: none; }

/* Hero */
.btd-hero {
    background: linear-gradient(180deg, var(--btd-surface) 0%, var(--btd-bg) 100%);
    border-bottom: 1px solid var(--btd-border);
    padding: 4rem 0 3rem;
}
.btd-eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.14em;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--btd-accent);
    margin-bottom: 0.5rem;
}
.btd-hero-title {
    font-family: var(--btd-serif);
    font-size: clamp(1.75rem, 3.5vw, 2.75rem);
    font-weight: 700;
    line-height: 1.15;
    margin: 0 0 0.75rem;
    max-width: 820px;
}
.btd-hero-sub {
    color: var(--btd-muted);
    font-size: 1.1rem;
    max-width: 720px;
    margin: 0;
}

/* Featured */
.btd-featured {
    border: 1px solid var(--btd-border);
    border-radius: 8px;
    padding: 2rem 2rem 1.75rem;
    background: var(--btd-bg);
    transition: box-shadow 0.15s, border-color 0.15s;
    overflow: hidden;
}
.btd-featured--with-image { padding: 0; }
.btd-featured-img {
    display: block;
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
}
.btd-featured--with-image .btd-featured-body { padding: 1.75rem 2rem 1.75rem; }
.btd-card-link { text-decoration: none; color: inherit; display: block; }
.btd-card-link:hover { text-decoration: none; }
.btd-card-link:hover .btd-featured,
.btd-card-link:hover .btd-card {
    border-color: var(--btd-accent);
    box-shadow: 0 6px 24px rgba(10, 61, 98, 0.08);
}
.btd-featured-meta { font-size: 0.85rem; color: var(--btd-muted); margin-bottom: 0.75rem; }
.btd-featured-title {
    font-family: var(--btd-serif);
    font-size: clamp(1.5rem, 2.6vw, 2rem);
    font-weight: 700;
    line-height: 1.2;
    margin: 0 0 0.5rem;
    color: var(--btd-text);
}
.btd-featured-summary {
    color: var(--btd-text);
    font-size: 1.05rem;
    margin: 0 0 0.75rem;
    max-width: 720px;
}

/* Cards */
.btd-section-h {
    font-family: var(--btd-serif);
    font-size: 1.5rem;
    font-weight: 700;
    border-bottom: 2px solid var(--btd-text);
    padding-bottom: 0.4rem;
    margin: 0;
}
.btd-card {
    border: 1px solid var(--btd-border);
    border-radius: 8px;
    padding: 1.25rem;
    background: var(--btd-bg);
    height: 100%;
    transition: box-shadow 0.15s, border-color 0.15s;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}
.btd-card--with-image { padding: 0; }
.btd-card--with-image .btd-card-meta,
.btd-card--with-image .btd-card-title,
.btd-card--with-image .btd-card-summary,
.btd-card--with-image .btd-byline { padding-left: 1.25rem; padding-right: 1.25rem; }
.btd-card--with-image .btd-byline { padding-bottom: 1rem; }
.btd-card--with-image .btd-card-meta { padding-top: 1rem; }
.btd-card-img {
    display: block;
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
}
.btd-card-meta { font-size: 0.78rem; color: var(--btd-muted); margin-bottom: 0.5rem; }
.btd-card-title {
    font-family: var(--btd-serif);
    font-size: 1.2rem;
    font-weight: 700;
    line-height: 1.3;
    margin: 0 0 0.5rem;
    color: var(--btd-text);
}
.btd-card-summary {
    color: var(--btd-muted);
    font-size: 0.95rem;
    margin: 0 0 0.75rem;
    flex: 1;
}
.btd-byline {
    font-size: 0.82rem;
    color: var(--btd-muted);
    margin: 0;
    border-top: 1px solid var(--btd-border);
    padding-top: 0.5rem;
}

/* Category pill */
.btd-cat-pill {
    display: inline-block;
    background: var(--btd-surface);
    border: 1px solid var(--btd-border);
    color: var(--btd-text);
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 0.18rem 0.55rem;
    border-radius: 999px;
    margin-right: 0.5rem;
    text-decoration: none;
}
a.btd-cat-pill:hover { border-color: var(--btd-accent); color: var(--btd-accent); text-decoration: none; }

/* Tag pill (article detail) */
.btd-tag-list { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.btd-tag-pill {
    display: inline-block;
    background: var(--btd-bg);
    border: 1px solid var(--btd-border);
    color: var(--btd-muted);
    font-size: 0.78rem;
    font-weight: 500;
    padding: 0.2rem 0.6rem;
    border-radius: 999px;
    text-decoration: none;
}
.btd-tag-pill:hover { border-color: var(--btd-accent); color: var(--btd-accent); text-decoration: none; }

/* Article page */
.btd-article-header {
    max-width: 760px;
    padding-top: 2.5rem;
}
.btd-backlink {
    color: var(--btd-muted);
    font-size: 0.9rem;
}
.btd-article-meta {
    margin: 1.25rem 0 0.5rem;
    font-size: 0.85rem;
    color: var(--btd-muted);
}
.btd-article-title {
    font-family: var(--btd-serif);
    font-size: clamp(1.85rem, 4vw, 2.6rem);
    font-weight: 700;
    line-height: 1.15;
    margin: 0 0 0.75rem;
}
.btd-article-summary {
    font-size: 1.15rem;
    color: var(--btd-muted);
    margin: 0 0 1rem;
    line-height: 1.5;
}
.btd-article-byline {
    font-size: 0.95rem;
    color: var(--btd-text);
    margin: 0;
    padding-top: 0.75rem;
    border-top: 1px solid var(--btd-border);
}
.btd-article-hero-img-wrap { max-width: 920px; padding-top: 2rem; }
.btd-article-hero-img {
    display: block;
    width: 100%;
    max-height: 480px;
    object-fit: cover;
    border-radius: 6px;
}
.btd-article-body {
    max-width: 720px;
    font-family: var(--btd-serif);
    font-size: 1.15rem;
    line-height: 1.7;
    padding-top: 2.5rem;
    padding-bottom: 2rem;
}
.btd-article-body img {
    display: block;
    max-width: 100%;
    height: auto;
    border-radius: 4px;
    margin: 1.5rem auto;
}
.btd-article-body p { margin: 0 0 1.25rem; }
.btd-article-body h2 {
    font-family: var(--btd-serif);
    font-size: 1.5rem;
    margin: 2rem 0 0.75rem;
}
.btd-article-body h3 {
    font-family: var(--btd-serif);
    font-size: 1.2rem;
    margin: 1.75rem 0 0.5rem;
}
.btd-article-body a { color: var(--btd-accent); text-decoration: underline; }
.btd-article-body blockquote {
    border-left: 3px solid var(--btd-border);
    padding: 0.25rem 0 0.25rem 1.25rem;
    color: var(--btd-muted);
    margin: 1.5rem 0;
}
.btd-article-body code {
    background: var(--btd-surface);
    padding: 0.1rem 0.35rem;
    border-radius: 3px;
    font-size: 0.9em;
}
.btd-article-body pre {
    background: var(--btd-surface);
    padding: 1rem;
    border-radius: 6px;
    overflow-x: auto;
    font-size: 0.9rem;
}

/* Bottom-line block (Markdig custom container: ::: bottom-line ... :::) */
.btd-article-body .bottom-line,
.btd-article-body div.bottom-line {
    background: var(--btd-bottom-bg);
    border-left: 4px solid var(--btd-bottom-bd);
    padding: 1rem 1.25rem;
    border-radius: 0 6px 6px 0;
    margin: 2rem 0;
    font-family: var(--btd-sans);
    font-size: 1rem;
}
.btd-article-body .bottom-line::before {
    content: 'Bottom line';
    display: block;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-weight: 700;
    color: var(--btd-text);
    margin-bottom: 0.4rem;
}
.btd-article-body .bottom-line p:last-child { margin-bottom: 0; }
.btd-article-footer { max-width: 720px; padding-bottom: 3rem; }

/* Prose pages (About, Privacy, Editorial Team) */
.btd-prose { max-width: 760px; }
.btd-prose h1 { font-family: var(--btd-serif); font-size: 2.25rem; margin-bottom: 1rem; }
.btd-prose h2 { font-family: var(--btd-serif); font-size: 1.4rem; margin-top: 2rem; margin-bottom: 0.5rem; }
.btd-prose .lead { font-size: 1.15rem; color: var(--btd-muted); }
.btd-prose ul { padding-left: 1.25rem; }
.btd-prose li { margin-bottom: 0.4rem; }

/* Editorial team cards */
.btd-team-card { padding-bottom: 1.5rem; border-bottom: 1px solid var(--btd-border); }
.btd-team-card:last-child { border-bottom: none; }
.btd-team-card h2 { font-family: var(--btd-serif); font-size: 1.4rem; }

/* Footer */
.btd-footer {
    background: var(--btd-surface);
    border-top: 1px solid var(--btd-border);
    margin-top: 4rem;
}
.btd-footer-brand {
    font-family: var(--btd-serif);
    font-weight: 700;
    font-size: 1.15rem;
}
.btd-footer-h {
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 0.75rem;
    color: var(--btd-muted);
    font-weight: 600;
    margin-bottom: 0.5rem;
}
.btd-footer-list { list-style: none; padding: 0; margin: 0; }
.btd-footer-list li { margin-bottom: 0.35rem; }
.btd-footer-list a { color: var(--btd-text); font-size: 0.9rem; }
.btd-footer-list a:hover { color: var(--btd-accent); text-decoration: none; }

/* Utilities */
.btd-muted { color: var(--btd-muted); }
.btd-link { color: var(--btd-accent); }

/* Responsive nav: hide nav links on small screens (basic — full hamburger later) */
@media (max-width: 640px) {
    .btd-nav-links { gap: 0.85rem; font-size: 0.9rem; }
    .btd-nav-links a { font-size: 0.85rem; }
}

/* ============================================================
   Admin styles
   ============================================================ */
.btd-admin-body {
    background: #f6f7f9;
    color: var(--btd-text);
    font-family: var(--btd-sans);
}
.btd-admin-nav {
    background: var(--btd-text);
    color: #fff;
    border-bottom: 1px solid #000;
}
.btd-admin-brand {
    color: #fff;
    font-weight: 700;
    font-size: 1rem;
    text-decoration: none;
}
.btd-admin-brand-tag {
    color: var(--btd-accent-2);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-left: 0.25rem;
}
.btd-admin-link {
    color: rgba(255,255,255,0.85);
    font-size: 0.9rem;
    text-decoration: none;
}
.btd-admin-link:hover { color: #fff; text-decoration: none; }

.btd-admin-card {
    background: #fff;
    border: 1px solid var(--btd-border);
    border-radius: 8px;
    padding: 1rem 1.25rem;
}
.btd-admin-card summary {
    cursor: pointer;
    list-style: revert;
}
.btd-admin-card summary::marker { color: var(--btd-muted); }

.btd-admin-stat {
    background: #fff;
    border: 1px solid var(--btd-border);
    border-radius: 8px;
    padding: 1rem;
}
.btd-admin-stat-label {
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--btd-muted);
    margin-bottom: 0.4rem;
}
.btd-admin-stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    line-height: 1;
}

.btd-admin-status {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 0.18rem 0.55rem;
    border-radius: 999px;
}
.btd-admin-status-published { background: #dcfce7; color: #166534; }
.btd-admin-status-draft     { background: #fef3c7; color: #854d0e; }
.btd-admin-status-archived  { background: #e5e7eb; color: #4b5563; }

.btd-admin-body-editor {
    font-family: 'Consolas', 'JetBrains Mono', 'SF Mono', Menlo, monospace;
    font-size: 0.92rem;
    line-height: 1.55;
    background: #fafafa;
}

.btd-admin-card .form-label { font-size: 0.85rem; font-weight: 600; }