/* Skipia Blog — shared stylesheet
   Loaded by /blog and every article under /blog/<slug>.
   Kept separate because inlining ~500 lines × 7 pages is not maintainable.
*/
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --red: #e94560;
    --red-soft: rgba(233,69,96,0.10);
    --blue: #1E40AF;
    --blue-soft: rgba(30,64,175,0.10);
    --amber: #F59E0B;
    --amber-dark: #D97706;
    --amber-soft: rgba(245,158,11,0.12);
    --dark: #0F172A;
    --dark-2: #1E293B;
    --white: #ffffff;
    --gray-50: #F8FAFC;
    --gray-100: #F1F5F9;
    --gray-200: #E2E8F0;
    --gray-300: #CBD5E1;
    --gray-400: #94A3B8;
    --gray-500: #64748B;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1E293B;
    --gray-900: #0F172A;
    --font: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --serif: 'Fraunces', Georgia, serif;
    --max-w: 1200px;
    --reading-w: 720px;
    --radius: 16px;
    --radius-sm: 10px;
}

html { scroll-behavior: smooth; }
body {
    font-family: var(--font);
    color: var(--gray-800);
    line-height: 1.65;
    background: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===== NAV ===== */
nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(14px) saturate(1.4);
    -webkit-backdrop-filter: blur(14px) saturate(1.4);
    border-bottom: 1px solid var(--gray-200);
}
.nav-inner {
    max-width: var(--max-w); margin: 0 auto;
    padding: 0.9rem 1.5rem;
    display: flex; align-items: center; justify-content: space-between;
}
.nav-logo {
    font-size: 1.35rem; font-weight: 700; color: var(--gray-900);
    text-decoration: none; letter-spacing: -0.02em;
}
.nav-links { display: flex; gap: 1.75rem; align-items: center; }
.nav-links a {
    text-decoration: none; color: var(--gray-500);
    font-size: 0.88rem; font-weight: 500; transition: color 0.2s;
}
.nav-links a:hover { color: var(--gray-900); }
.nav-links a.active { color: var(--amber-dark); }
.nav-cta {
    background: var(--dark); color: var(--white);
    padding: 0.55rem 1.3rem; border-radius: 8px;
    font-weight: 700; font-size: 0.85rem; text-decoration: none;
    transition: transform 0.2s, box-shadow 0.2s;
    white-space: nowrap;
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 6px 18px rgba(15,23,42,0.25); }
.hamburger { display: none; background: none; border: none; cursor: pointer; width: 32px; height: 32px; flex-direction: column; justify-content: center; gap: 5px; }
.hamburger span { display: block; width: 22px; height: 2px; background: var(--gray-900); }

/* Dropdown */
.nav-dropdown { position: relative; }
.nav-dropdown-trigger { display: flex; align-items: center; gap: 4px; cursor: pointer; }
.nav-dropdown-trigger svg { transition: transform 0.2s; }
.nav-dropdown:hover .nav-dropdown-trigger svg { transform: rotate(180deg); }
.nav-dropdown-menu {
    position: absolute; top: 100%; left: 50%;
    transform: translateX(-50%) translateY(8px);
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: 16px; padding: 8px; min-width: 340px;
    opacity: 0; pointer-events: none;
    transition: all 0.2s; z-index: 101;
    box-shadow: 0 12px 32px rgba(15,23,42,0.1);
}
.nav-dropdown:hover .nav-dropdown-menu {
    opacity: 1; pointer-events: auto;
    transform: translateX(-50%) translateY(0);
}
.dropdown-item {
    display: flex; gap: 12px; padding: 12px 16px;
    border-radius: 10px; text-decoration: none; color: var(--gray-900);
    transition: background 0.15s;
}
.dropdown-item:hover { background: #f1f5f9; }
.dropdown-icon { font-size: 20px; flex-shrink: 0; margin-top: 2px; }
.dropdown-title { font-weight: 600; font-size: 14px; margin-bottom: 2px; color: var(--gray-900); }
.dropdown-desc { font-size: 12px; color: var(--gray-500); line-height: 1.4; }

/* ===== BLOG INDEX HERO ===== */
.blog-hero {
    background: var(--dark);
    color: var(--white);
    padding: 10rem 1.5rem 5rem;
    position: relative; overflow: hidden;
}
.blog-hero::before {
    content: ""; position: absolute; inset: 0;
    background:
        radial-gradient(circle at 15% 20%, rgba(245,158,11,0.18), transparent 45%),
        radial-gradient(circle at 85% 70%, rgba(30,64,175,0.22), transparent 45%);
    pointer-events: none;
}
.blog-hero-inner { max-width: var(--max-w); margin: 0 auto; position: relative; }
.kicker {
    font-size: 0.75rem; letter-spacing: 0.2em; text-transform: uppercase;
    font-weight: 700; color: var(--amber); margin-bottom: 1.5rem;
    display: flex; align-items: center; gap: 0.75rem;
}
.kicker::before { content: ""; width: 32px; height: 2px; background: var(--amber); }
.blog-hero h1 {
    font-family: var(--serif);
    font-weight: 800;
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    line-height: 1.02;
    letter-spacing: -0.03em;
    margin-bottom: 1.25rem;
    color: var(--white);
    max-width: 900px;
}
.blog-hero h1 em { font-style: italic; font-weight: 600; color: var(--amber); }
.blog-hero p {
    font-family: var(--serif); font-style: italic;
    font-size: clamp(1.1rem, 1.6vw, 1.35rem);
    color: rgba(255,255,255,0.75);
    max-width: 680px; line-height: 1.5;
}

/* ===== ARTICLE LIST ===== */
.articles-wrap { background: var(--gray-50); padding: 5rem 1.5rem 6rem; }
.articles-grid {
    max-width: var(--max-w); margin: 0 auto;
    display: grid; grid-template-columns: repeat(2, 1fr); gap: 2rem;
}
.article-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    padding: 2rem 2rem 2rem;
    text-decoration: none; color: inherit;
    display: flex; flex-direction: column;
    transition: transform 0.25s cubic-bezier(0.16,1,0.3,1), box-shadow 0.25s, border-color 0.25s;
    position: relative;
    overflow: hidden;
}
.article-card::before {
    content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
    background: linear-gradient(90deg, transparent, currentColor, transparent);
    opacity: 0; transition: opacity 0.3s;
}
.article-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 24px 48px -20px rgba(15,23,42,0.18);
    border-color: var(--gray-300);
}
.article-card:hover::before { opacity: 1; }
.article-card.c-blue { color: var(--blue); }
.article-card.c-red { color: var(--red); }
.article-card.c-amber { color: var(--amber-dark); }

.article-card .tag {
    display: inline-flex; align-items: center; gap: 0.4rem;
    font-size: 0.72rem; font-weight: 700;
    letter-spacing: 0.12em; text-transform: uppercase;
    margin-bottom: 1rem;
}
.article-card .tag::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.article-card h2 {
    font-family: var(--serif); font-weight: 700;
    font-size: 1.5rem; line-height: 1.2; letter-spacing: -0.015em;
    color: var(--gray-900); margin-bottom: 0.75rem;
    transition: color 0.2s;
}
.article-card:hover h2 { color: currentColor; }
.article-card p {
    font-size: 0.95rem; color: var(--gray-600);
    line-height: 1.55; margin-bottom: 1.25rem;
    flex: 1;
}
.article-card .read-more {
    display: inline-flex; align-items: center; gap: 0.4rem;
    font-weight: 600; font-size: 0.88rem;
    color: currentColor;
    transition: gap 0.2s;
}
.article-card:hover .read-more { gap: 0.7rem; }
.article-card .read-more svg { width: 14px; height: 14px; }

/* ===== ARTICLE PAGE ===== */
.article-hero {
    background: var(--white);
    padding: 9rem 1.5rem 3rem;
    border-bottom: 1px solid var(--gray-200);
}
.article-hero-inner {
    max-width: var(--reading-w); margin: 0 auto;
}
.breadcrumb {
    display: flex; align-items: center; gap: 0.5rem;
    font-size: 0.82rem; color: var(--gray-500);
    margin-bottom: 2rem;
}
.breadcrumb a { color: var(--gray-500); text-decoration: none; transition: color 0.2s; }
.breadcrumb a:hover { color: var(--gray-900); }
.breadcrumb .sep { color: var(--gray-300); }
.article-kicker {
    display: inline-block;
    font-size: 0.72rem; font-weight: 700;
    letter-spacing: 0.15em; text-transform: uppercase;
    padding: 0.35rem 0.8rem; border-radius: 4px;
    margin-bottom: 1.25rem;
}
.article-kicker.c-blue { background: var(--blue-soft); color: var(--blue); }
.article-kicker.c-red { background: var(--red-soft); color: var(--red); }
.article-kicker.c-amber { background: var(--amber-soft); color: var(--amber-dark); }

h1.article-title {
    font-family: var(--serif); font-weight: 800;
    font-size: clamp(2.25rem, 4.5vw, 3.5rem);
    line-height: 1.08; letter-spacing: -0.025em;
    color: var(--gray-900); margin-bottom: 1.5rem;
}
.article-dek {
    font-family: var(--serif); font-style: italic;
    font-size: clamp(1.15rem, 1.6vw, 1.35rem);
    color: var(--gray-600); line-height: 1.5;
    margin-bottom: 2rem;
}
.article-meta {
    display: flex; align-items: center; gap: 1.25rem;
    font-size: 0.85rem; color: var(--gray-500);
    padding: 1.25rem 0; border-top: 1px solid var(--gray-200);
}
.article-meta .author {
    display: flex; align-items: center; gap: 0.6rem;
    font-weight: 600; color: var(--gray-900);
}
.article-meta .author-avatar {
    width: 34px; height: 34px; border-radius: 50%;
    background: linear-gradient(135deg, var(--blue), var(--red));
    color: var(--white); display: flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 0.82rem; font-family: var(--font);
    flex-shrink: 0;
}
.article-meta .sep { color: var(--gray-300); }

/* ===== ARTICLE BODY ===== */
.article-body {
    max-width: var(--reading-w); margin: 0 auto;
    padding: 3rem 1.5rem 2rem;
    font-size: 1.08rem;
    line-height: 1.75;
    color: var(--gray-800);
}
.article-body > *:first-child { margin-top: 0; }
.article-body p { margin-bottom: 1.5rem; }
.article-body p.lead {
    font-size: 1.25rem; line-height: 1.55;
    color: var(--gray-700); font-weight: 500;
    border-left: 3px solid var(--amber);
    padding-left: 1.25rem;
    margin-bottom: 2.5rem;
}
.article-body h2 {
    font-family: var(--serif); font-weight: 700;
    font-size: clamp(1.5rem, 2.5vw, 1.85rem);
    line-height: 1.2; letter-spacing: -0.015em;
    color: var(--gray-900); margin: 3rem 0 1.25rem;
}
.article-body h3 {
    font-family: var(--serif); font-weight: 700;
    font-size: 1.3rem; line-height: 1.3;
    color: var(--gray-900); margin: 2rem 0 1rem;
}
.article-body ul, .article-body ol {
    margin: 0 0 1.75rem 1.25rem; padding: 0;
}
.article-body ul li, .article-body ol li { margin-bottom: 0.65rem; }
.article-body ul li::marker { color: var(--amber); }
.article-body ol li::marker { color: var(--amber); font-weight: 700; }
.article-body strong { font-weight: 700; color: var(--gray-900); }
.article-body em { font-style: italic; color: var(--gray-700); }
.article-body a {
    color: var(--blue); text-decoration: underline;
    text-decoration-thickness: 1px; text-underline-offset: 3px;
    transition: color 0.2s;
}
.article-body a:hover { color: var(--red); }
.article-body blockquote {
    border-left: 3px solid var(--gray-300);
    padding: 0.25rem 0 0.25rem 1.5rem;
    margin: 2rem 0;
    font-family: var(--serif); font-style: italic;
    font-size: 1.15rem; color: var(--gray-600);
}
.article-body blockquote cite {
    display: block; margin-top: 0.75rem;
    font-size: 0.85rem; font-family: var(--font);
    font-style: normal; color: var(--gray-500);
    font-weight: 500;
}
.article-body figure { margin: 2rem 0; }

/* Callout box */
.callout {
    background: var(--gray-50);
    border-left: 3px solid var(--amber);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    padding: 1.5rem 1.75rem;
    margin: 2rem 0;
}
.callout .callout-label {
    font-size: 0.7rem; font-weight: 700;
    letter-spacing: 0.15em; text-transform: uppercase;
    color: var(--amber-dark); margin-bottom: 0.5rem;
}
.callout p:last-child { margin-bottom: 0; }
.callout.blue { border-left-color: var(--blue); }
.callout.blue .callout-label { color: var(--blue); }
.callout.red { border-left-color: var(--red); }
.callout.red .callout-label { color: var(--red); }

/* Source citation */
.source-note {
    font-size: 0.85rem; color: var(--gray-500);
    padding: 0.5rem 0; line-height: 1.5;
}

/* Table of contents */
.toc {
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    padding: 1.5rem 1.75rem;
    margin: 2.5rem 0;
}
.toc-label {
    font-size: 0.72rem; font-weight: 700;
    letter-spacing: 0.15em; text-transform: uppercase;
    color: var(--gray-500); margin-bottom: 0.75rem;
}
.toc ol { margin: 0; padding-left: 1.25rem; }
.toc li { margin-bottom: 0.35rem; font-size: 0.95rem; }
.toc a { color: var(--gray-700); text-decoration: none; transition: color 0.2s; }
.toc a:hover { color: var(--blue); }

/* ===== INLINE PRODUCT CTA ===== */
.product-cta {
    background: var(--dark); color: var(--white);
    border-radius: var(--radius);
    padding: 2rem 2.25rem;
    margin: 3rem 0;
    display: flex; gap: 1.5rem; align-items: center;
    flex-wrap: wrap;
}
.product-cta .product-cta-body { flex: 1; min-width: 260px; }
.product-cta .product-cta-kicker {
    font-size: 0.72rem; font-weight: 700;
    letter-spacing: 0.15em; text-transform: uppercase;
    color: var(--amber); margin-bottom: 0.5rem;
}
.product-cta h3 {
    font-family: var(--serif); font-weight: 700;
    font-size: 1.35rem; line-height: 1.25;
    color: var(--white); margin-bottom: 0.5rem;
}
.product-cta p {
    color: rgba(255,255,255,0.75);
    font-size: 0.95rem; line-height: 1.5; margin: 0;
}
.product-cta-btn {
    display: inline-flex; align-items: center; gap: 0.5rem;
    background: var(--amber); color: var(--dark);
    padding: 0.85rem 1.4rem; border-radius: 8px;
    font-weight: 700; font-size: 0.9rem; text-decoration: none;
    transition: transform 0.2s, box-shadow 0.2s;
    white-space: nowrap;
}
.product-cta-btn:hover { transform: translateY(-2px); box-shadow: 0 12px 28px -10px rgba(245,158,11,0.5); }
.product-cta-btn svg { width: 14px; height: 14px; }

/* ===== END OF ARTICLE CTA ===== */
.end-cta {
    background: var(--gray-50);
    border-top: 1px solid var(--gray-200);
    padding: 5rem 1.5rem;
    text-align: center;
}
.end-cta-inner { max-width: var(--reading-w); margin: 0 auto; }
.end-cta h2 {
    font-family: var(--serif); font-weight: 800;
    font-size: clamp(1.6rem, 3vw, 2.25rem);
    line-height: 1.15; letter-spacing: -0.02em;
    color: var(--gray-900); margin-bottom: 1rem;
}
.end-cta p {
    font-family: var(--serif); font-style: italic;
    color: var(--gray-600); font-size: 1.1rem;
    margin-bottom: 2rem;
}
.end-cta-btn {
    display: inline-flex; align-items: center; gap: 0.6rem;
    background: var(--dark); color: var(--white);
    padding: 1rem 1.75rem; border-radius: 10px;
    font-weight: 700; font-size: 0.95rem; text-decoration: none;
    transition: transform 0.2s, box-shadow 0.2s;
}
.end-cta-btn:hover { transform: translateY(-2px); box-shadow: 0 14px 32px -12px rgba(15,23,42,0.4); }

/* ===== RELATED ARTICLES ===== */
.related-wrap { background: var(--white); padding: 5rem 1.5rem; border-top: 1px solid var(--gray-200); }
.related-header { max-width: var(--max-w); margin: 0 auto 2.5rem; }
.related-header h3 {
    font-family: var(--serif); font-weight: 700;
    font-size: 1.75rem; letter-spacing: -0.015em;
    color: var(--gray-900);
}
.related-grid {
    max-width: var(--max-w); margin: 0 auto;
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem;
}
.related-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-sm);
    padding: 1.5rem;
    text-decoration: none; color: inherit;
    transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
}
.related-card:hover { transform: translateY(-2px); border-color: var(--gray-300); box-shadow: 0 10px 24px -10px rgba(15,23,42,0.1); }
.related-card .tag {
    font-size: 0.7rem; font-weight: 700;
    letter-spacing: 0.12em; text-transform: uppercase;
    color: var(--amber-dark);
    margin-bottom: 0.75rem;
}
.related-card h4 {
    font-family: var(--serif); font-weight: 700;
    font-size: 1.1rem; line-height: 1.3;
    color: var(--gray-900);
}

/* ===== FOOTER ===== */
footer {
    background: var(--dark);
    color: rgba(255,255,255,0.6);
    padding: 3rem 1.5rem 2rem;
}
.footer-inner {
    max-width: var(--max-w); margin: 0 auto;
    display: flex; flex-wrap: wrap; gap: 2rem; justify-content: space-between;
}
.footer-logo {
    font-family: var(--font); font-size: 1.3rem; font-weight: 700;
    color: var(--white); margin-bottom: 0.5rem; letter-spacing: -0.02em;
}
.footer-links { display: flex; flex-wrap: wrap; gap: 1.5rem; align-items: center; }
.footer-links a { color: rgba(255,255,255,0.65); text-decoration: none; font-size: 0.88rem; transition: color 0.2s; }
.footer-links a:hover { color: var(--white); }
.footer-copy { font-size: 0.8rem; color: rgba(255,255,255,0.4); width: 100%; text-align: center; padding-top: 1.5rem; margin-top: 1rem; border-top: 1px solid rgba(255,255,255,0.06); }

/* ===== MOBILE ===== */
@media (max-width: 900px) {
    .hamburger { display: flex; }
    .nav-links { display: none; }
    .nav-links.mobile-open {
        display: flex; flex-direction: column;
        position: fixed; top: 60px; left: 0; right: 0;
        background: var(--white); padding: 1.5rem;
        gap: 1.25rem; border-bottom: 1px solid var(--gray-200);
    }
    .articles-grid { grid-template-columns: 1fr; gap: 1.5rem; }
    .related-grid { grid-template-columns: 1fr; }
    .blog-hero, .article-hero { padding: 7rem 1.5rem 3rem; }
    .product-cta { padding: 1.75rem; }
}