/* ==========================================================================
   Acadewie — Blog (static, SEO-first)
   Brand-native typography & palette, self-contained for /blog/ static pages.
   ========================================================================== */

:root {
  --font-main: 'Source Sans 3', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'Playfair Display', Georgia, serif;
  --font-mono: 'IBM Plex Mono', monospace;

  --color-navy: #00205B;
  --color-gold: #C4A052;
  --color-gold-dark: #A08040;
  --color-teal: #0097A7;
  --color-white: #FFFFFF;
  --color-off-white: #F8F6F3;
  --color-text-secondary: #4A5568;
  --color-border: rgba(0, 32, 91, 0.10);

  --maxw: 1180px;
  --readw: 720px;
}

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

html { background-color: var(--color-off-white); -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-main);
  background-color: var(--color-off-white);
  color: var(--color-navy);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: inherit; }

/* ------------------------------------------------------------------ header */
.blog-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1.25rem clamp(1.25rem, 4vw, 4rem);
  background: rgba(248, 246, 243, 0.82);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(196, 160, 82, 0.22);
}
.blog-header__brand {
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.14em;
  color: var(--color-navy);
  text-decoration: none;
}
.blog-header__nav {
  display: flex;
  align-items: center;
  gap: clamp(1.25rem, 3vw, 2.5rem);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.blog-header__nav a {
  color: var(--color-navy);
  text-decoration: none;
  transition: color 0.25s ease;
  white-space: nowrap;
}
.blog-header__nav a:hover { color: var(--color-gold); }
.blog-header__nav a[aria-current="page"] { color: var(--color-gold); }
@media (max-width: 640px) {
  .blog-header__nav a.hide-sm { display: none; }
}

/* -------------------------------------------------------------- containers */
.blog-main { width: 100%; }
.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding-left: clamp(1.25rem, 4vw, 4rem); padding-right: clamp(1.25rem, 4vw, 4rem); }

/* ------------------------------------------------------------ listing hero */
.blog-hero {
  position: relative;
  padding: clamp(3.5rem, 8vw, 7rem) 0 clamp(2rem, 4vw, 3.5rem);
  overflow: hidden;
}
.blog-hero::before {
  content: "";
  position: absolute;
  top: -30%; right: -10%;
  width: 460px; height: 460px;
  background: radial-gradient(circle, rgba(196, 160, 82, 0.16) 0%, transparent 70%);
  filter: blur(50px);
  pointer-events: none;
}
.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-gold-dark);
  margin-bottom: 1.25rem;
}
.blog-hero h1 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(2.4rem, 6vw, 4rem);
  line-height: 1.05;
  letter-spacing: -0.015em;
  color: var(--color-navy);
  max-width: 14ch;
}
.blog-hero p {
  margin-top: 1.25rem;
  font-size: clamp(1.02rem, 2vw, 1.2rem);
  color: var(--color-text-secondary);
  max-width: 60ch;
  line-height: 1.7;
}

/* -------------------------------------------------------------- card grid */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(330px, 1fr));
  gap: clamp(1.25rem, 2.5vw, 2rem);
  padding-bottom: clamp(3.5rem, 8vw, 6rem);
}
.blog-card {
  display: flex;
  flex-direction: column;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 1.25rem;
  padding: clamp(1.5rem, 2.5vw, 2.1rem);
  text-decoration: none;
  color: var(--color-navy);
  box-shadow: 0 4px 22px rgba(0, 32, 91, 0.05);
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
.blog-card:hover {
  transform: translateY(-6px);
  border-color: rgba(196, 160, 82, 0.55);
  box-shadow: 0 14px 36px rgba(0, 32, 91, 0.10);
}
.blog-card__cat {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-teal);
  margin-bottom: 1rem;
}
.blog-card__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.35rem, 2.4vw, 1.7rem);
  line-height: 1.18;
  letter-spacing: -0.01em;
  margin-bottom: 0.75rem;
}
.blog-card__excerpt {
  font-size: 0.96rem;
  line-height: 1.6;
  color: var(--color-text-secondary);
  margin-bottom: 1.5rem;
  flex: 1;
}
.blog-card__meta {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  color: #8A93A2;
}
.blog-card__meta .dot { width: 3px; height: 3px; border-radius: 50%; background: currentColor; opacity: 0.6; }
.blog-card__more {
  margin-top: 1.25rem;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  color: var(--color-navy);
}
.blog-card:hover .blog-card__more { color: var(--color-gold-dark); }
.blog-card__more .arrow { transition: transform 0.3s ease; }
.blog-card:hover .blog-card__more .arrow { transform: translateX(4px); }

/* ---------------------------------------------------------- article header */
.post-header { padding: clamp(2.5rem, 6vw, 5rem) 0 clamp(1.5rem, 3vw, 2.5rem); }
.breadcrumb {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #8A93A2;
  margin-bottom: 1.5rem;
}
.breadcrumb a { color: #8A93A2; text-decoration: none; transition: color 0.25s; }
.breadcrumb a:hover { color: var(--color-gold-dark); }
.breadcrumb .sep { margin: 0 0.5rem; opacity: 0.6; }
.post-cat {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-teal);
  margin-bottom: 1rem;
}
.post-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2.1rem, 5vw, 3.4rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--color-navy);
  max-width: 20ch;
}
.post-dek {
  margin-top: 1.25rem;
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  line-height: 1.6;
  color: var(--color-text-secondary);
  max-width: var(--readw);
}
.post-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
  margin-top: 1.75rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  color: var(--color-text-secondary);
}
.post-meta .author { color: var(--color-navy); font-weight: 500; }
.post-meta .dot { width: 3px; height: 3px; border-radius: 50%; background: currentColor; opacity: 0.5; }

/* ------------------------------------------------------------ article body */
.post-body {
  max-width: var(--readw);
  padding-bottom: clamp(2.5rem, 5vw, 4rem);
  font-size: 1.125rem;
  line-height: 1.8;
  color: #21324A;
}
.post-body > p:first-of-type {
  font-size: 1.24rem;
  line-height: 1.66;
  color: var(--color-navy);
}
.post-body h2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.6rem, 3.2vw, 2.1rem);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--color-navy);
  margin: 2.75rem 0 1rem;
}
.post-body h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.25rem, 2.4vw, 1.5rem);
  line-height: 1.25;
  color: var(--color-navy);
  margin: 2rem 0 0.75rem;
}
.post-body p { margin: 0 0 1.35rem; }
.post-body ul, .post-body ol { margin: 0 0 1.5rem 1.25rem; }
.post-body li { margin-bottom: 0.6rem; padding-left: 0.35rem; }
.post-body ul li::marker { color: var(--color-gold); }
.post-body ol li::marker { color: var(--color-gold-dark); font-family: var(--font-mono); font-weight: 500; }
.post-body strong { color: var(--color-navy); font-weight: 600; }
.post-body a {
  color: var(--color-gold-dark);
  text-decoration: underline;
  text-decoration-color: rgba(196, 160, 82, 0.45);
  text-underline-offset: 3px;
  transition: text-decoration-color 0.25s, color 0.25s;
}
.post-body a:hover { color: var(--color-navy); text-decoration-color: var(--color-navy); }

.post-body hr {
  border: 0;
  height: 1px;
  width: 42%;
  margin: 3rem auto;
  background: linear-gradient(90deg, transparent, rgba(196, 160, 82, 0.55), transparent);
}

.post-body blockquote {
  margin: 2.25rem 0;
  padding: 0.5rem 0 0.5rem 1.75rem;
  border-left: 3px solid var(--color-gold);
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(1.3rem, 2.6vw, 1.65rem);
  line-height: 1.4;
  color: var(--color-navy);
}
.post-body blockquote cite { display: block; margin-top: 0.75rem; font-family: var(--font-mono); font-style: normal; font-size: 0.8rem; letter-spacing: 0.06em; color: var(--color-text-secondary); }

.post-stat {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin: 2.25rem 0;
  padding: 1.6rem 1.75rem;
  background: linear-gradient(135deg, rgba(196, 160, 82, 0.10), rgba(196, 160, 82, 0.03));
  border: 1px solid rgba(196, 160, 82, 0.30);
  border-radius: 1rem;
}
.post-stat__num {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.6rem, 6vw, 3.6rem);
  line-height: 1;
  color: var(--color-gold-dark);
}
.post-stat__label {
  font-size: 0.98rem;
  line-height: 1.5;
  color: var(--color-navy);
  max-width: 46ch;
}

/* -------------------------------------------------------------------- cta */
.post-cta {
  margin: clamp(2rem, 5vw, 3.5rem) 0;
  padding: clamp(2rem, 4vw, 3rem);
  background: var(--color-navy);
  border-radius: 1.5rem;
  color: var(--color-white);
  max-width: var(--readw);
}
.post-cta h2 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.5rem, 3vw, 2rem);
  line-height: 1.2;
  margin-bottom: 0.75rem;
  color: var(--color-white);
}
.post-cta p { color: rgba(255, 255, 255, 0.78); margin-bottom: 1.6rem; font-size: 1.02rem; line-height: 1.6; }
.btn-gold {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.75rem;
  background: var(--color-gold);
  color: var(--color-navy);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-decoration: none;
  border-radius: 2rem;
  transition: background 0.25s ease, transform 0.25s ease;
}
.btn-gold:hover { background: #d4b46a; transform: translateY(-2px); }

/* --------------------------------------------------------------- related */
.post-related { padding: clamp(2.5rem, 5vw, 4rem) 0; border-top: 1px solid var(--color-border); }
.post-related h2 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  color: var(--color-navy);
  margin-bottom: 1.75rem;
}
.related-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1.25rem; }

/* --------------------------------------------------------------- footer */
.blog-footer {
  border-top: 1px solid var(--color-border);
  padding: clamp(2.5rem, 5vw, 3.5rem) 0;
  margin-top: 2rem;
}
.blog-footer .wrap { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1rem; }
.blog-footer__brand { font-weight: 700; letter-spacing: 0.14em; color: var(--color-navy); }
.blog-footer__links { display: flex; flex-wrap: wrap; gap: 1.5rem; font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; }
.blog-footer__links a { color: var(--color-text-secondary); text-decoration: none; transition: color 0.25s; }
.blog-footer__links a:hover { color: var(--color-gold-dark); }
.blog-footer__legal { width: 100%; margin-top: 0.5rem; font-size: 0.78rem; color: #8A93A2; }

/* accessibility */
:focus-visible { outline: 2px solid var(--color-gold); outline-offset: 3px; border-radius: 2px; }
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }