:root {
  --bg:           #E5E7EE;
  --shell:        #F4F5F9;
  --surface:      #FFFFFF;
  --primary:      #E5267E;
  --text:         #1C1233;
  --text-soft:    #6A6480;
  --text-dim:     #9A93AD;
  --border:       #E5E3EE;
  --radius-sm:    12px;
  --radius-md:    18px;
  --page-width:   720px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 17px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

/* ── NAV ───────────────────────────────────────── */
.site-nav {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-nav-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.nav-logo {
  font-weight: 700;
  font-size: 18px;
  color: var(--text);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-logo span { color: var(--primary); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--text-soft);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: color 0.15s;
}

.nav-links a:hover { color: var(--text); }

.nav-cta {
  background: var(--primary);
  color: #fff !important;
  padding: 8px 18px;
  border-radius: 999px;
  font-size: 14px !important;
  font-weight: 600 !important;
}

.nav-cta:hover { opacity: 0.9; }

/* ── HERO / PAGE HEADER ─────────────────────────── */
.page-header {
  text-align: center;
  padding: 72px 24px 48px;
}

.page-header .label {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 16px;
}

.page-header h1 {
  font-size: clamp(28px, 5vw, 44px);
  font-weight: 800;
  line-height: 1.15;
  margin: 0 0 16px;
  letter-spacing: -0.02em;
}

.page-header p {
  font-size: 18px;
  color: var(--text-soft);
  max-width: 560px;
  margin: 0 auto;
}

/* ── BLOG INDEX GRID ────────────────────────────── */
.blog-grid {
  max-width: 1060px;
  margin: 0 auto;
  padding: 0 24px 96px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}

.post-card {
  background: var(--surface);
  border-radius: var(--radius-md);
  padding: 32px;
  text-decoration: none;
  color: inherit;
  border: 1px solid var(--border);
  transition: box-shadow 0.2s, transform 0.2s;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.post-card:hover {
  box-shadow: 0 8px 32px rgba(28,18,51,0.1);
  transform: translateY(-2px);
}

.post-card .tag {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--primary);
}

.post-card h2 {
  font-size: 20px;
  font-weight: 700;
  line-height: 1.3;
  margin: 0;
  letter-spacing: -0.01em;
}

.post-card p {
  font-size: 15px;
  color: var(--text-soft);
  margin: 0;
  line-height: 1.6;
}

.post-card .read-time {
  font-size: 13px;
  color: var(--text-dim);
  margin-top: auto;
}

/* ── ARTICLE ────────────────────────────────────── */
.article-wrap {
  max-width: var(--page-width);
  margin: 0 auto;
  padding: 0 24px 96px;
}

.article-header {
  padding: 64px 0 48px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 48px;
}

.article-header .tag {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--primary);
  display: block;
  margin-bottom: 16px;
}

.article-header h1 {
  font-size: clamp(26px, 4vw, 40px);
  font-weight: 800;
  line-height: 1.15;
  margin: 0 0 20px;
  letter-spacing: -0.02em;
}

.article-meta {
  font-size: 14px;
  color: var(--text-dim);
}

/* ── ARTICLE BODY ───────────────────────────────── */
.article-body h2 {
  font-size: 22px;
  font-weight: 700;
  margin: 48px 0 16px;
  letter-spacing: -0.01em;
}

.article-body p {
  margin: 0 0 24px;
  color: var(--text);
}

.article-body ul, .article-body ol {
  padding-left: 24px;
  margin: 0 0 24px;
  color: var(--text);
}

.article-body li { margin-bottom: 8px; }

.article-body strong { color: var(--text); }

.article-body a {
  color: var(--primary);
  text-decoration: underline;
  text-decoration-color: rgba(229,38,126,0.3);
}

.article-body a:hover {
  text-decoration-color: var(--primary);
}

.article-body blockquote {
  margin: 32px 0;
  padding: 20px 24px;
  background: var(--shell);
  border-left: 3px solid var(--primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
  color: var(--text-soft);
}

/* ── CALLOUT (Magic Read CTA) ───────────────────── */
.callout {
  background: linear-gradient(135deg, #fce4ef 0%, #f0effe 100%);
  border: 1px solid rgba(229,38,126,0.15);
  border-radius: var(--radius-md);
  padding: 32px;
  margin: 48px 0;
  text-align: center;
}

.callout p {
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 16px !important;
}

.callout a {
  display: inline-block;
  background: var(--primary);
  color: #fff !important;
  text-decoration: none !important;
  padding: 12px 28px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 700;
  transition: opacity 0.15s;
}

.callout a:hover { opacity: 0.9; }

/* ── BACK LINK / FOOTER ─────────────────────────── */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-soft);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 40px;
  transition: color 0.15s;
}

.back-link:hover { color: var(--text); }
.back-link svg { flex-shrink: 0; }

.site-footer {
  border-top: 1px solid var(--border);
  padding: 32px 24px;
  text-align: center;
  font-size: 14px;
  color: var(--text-dim);
}

.site-footer a {
  color: var(--text-soft);
  text-decoration: none;
}

.site-footer a:hover { color: var(--text); }

@media (max-width: 640px) {
  .blog-grid { grid-template-columns: 1fr; }
  .page-header { padding: 48px 24px 32px; }
  .article-header { padding: 40px 0 32px; }
}