/* Tangram blog — shares the brand system from index.html */
:root {
  --grape: #401F7D;
  --grape-deep: #2D1659;
  --orchid: #B14FC5;
  --orchid-light: rgba(177,79,197,0.08);
  --amethyst: #88229D;
  --pacific: #5FD0FF;
  --mint: #3FDE9D;
  --slate: #333333;
  --stone: #EAEAEE;
  --stone-warm: #F5F4F7;
  --white: #FFFFFF;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Work Sans', sans-serif;
  color: var(--slate);
  background: var(--white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
a { color: var(--amethyst); }
.container { max-width: 760px; margin: 0 auto; padding: 0 32px; }

/* NAV — matches homepage */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(64,31,125,0.06);
}
.nav-inner {
  display: flex; justify-content: space-between; align-items: center;
  padding: 16px 32px; max-width: 1180px; margin: 0 auto;
}
.nav-logo { height: 56px; display: flex; align-items: center; }
.nav-logo-img { height: 56px; width: auto; }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a {
  font-size: 14px; font-weight: 500; color: var(--slate);
  text-decoration: none; transition: color 0.3s;
}
.nav-links a:hover { color: var(--grape); }
.nav-cta {
  background: linear-gradient(135deg, var(--orchid) 0%, var(--amethyst) 100%);
  color: #fff !important;
  padding: 11px 22px; border-radius: 10px; font-weight: 600;
  box-shadow: 0 4px 16px rgba(177,79,197,0.25);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 6px 24px rgba(177,79,197,0.35); }
@media (max-width: 720px) { .nav-links a:not(.nav-cta) { display: none; } }

/* ARTICLE HEADER */
.post-header {
  background: linear-gradient(165deg, #FDFCFE 0%, #F9F7FC 45%, #F3EEF8 100%);
  padding: 64px 0 48px;
  border-bottom: 1px solid rgba(64,31,125,0.06);
}
.eyebrow {
  display: inline-block;
  font-size: 12px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--amethyst);
  background: rgba(177,79,197,0.1);
  padding: 6px 14px; border-radius: 100px; margin-bottom: 20px;
}
h1.post-title {
  font-family: 'League Spartan', sans-serif;
  font-size: clamp(30px, 4.5vw, 46px);
  font-weight: 800; line-height: 1.12; letter-spacing: -0.02em;
  color: var(--grape); margin-bottom: 18px;
}
.post-meta { font-size: 14px; color: #777; }
.post-meta a { color: var(--amethyst); text-decoration: none; }

/* ARTICLE BODY */
.post-body { padding: 48px 0 32px; font-size: 18px; }
.post-body p { margin-bottom: 22px; }
.post-body h2 {
  font-family: 'League Spartan', sans-serif;
  font-size: 27px; font-weight: 700; color: var(--grape);
  margin: 44px 0 16px; letter-spacing: -0.01em;
}
.post-body h3 {
  font-family: 'Work Sans', sans-serif;
  font-size: 20px; font-weight: 700; color: var(--grape-deep);
  margin: 32px 0 12px;
}
.post-body ul, .post-body ol { margin: 0 0 22px 24px; }
.post-body li { margin-bottom: 10px; }
.post-body strong { color: var(--grape-deep); font-weight: 700; }
.post-body em { font-style: italic; }
.post-body a { color: var(--amethyst); font-weight: 600; }
.post-body blockquote {
  border-left: 4px solid var(--orchid);
  background: var(--orchid-light);
  padding: 16px 22px; margin: 0 0 24px; border-radius: 0 10px 10px 0;
  font-size: 18px; color: var(--grape-deep);
}
.post-body table {
  width: 100%; border-collapse: collapse; margin: 8px 0 26px; font-size: 15px;
}
.post-body th, .post-body td {
  border: 1px solid var(--stone); padding: 10px 14px; text-align: left; vertical-align: top;
}
.post-body th { background: var(--stone-warm); color: var(--grape-deep); font-weight: 700; }
.post-body hr { border: none; border-top: 1px solid var(--stone); margin: 40px 0; }

/* CTA BOX */
.cta-box {
  background: linear-gradient(135deg, var(--grape) 0%, var(--amethyst) 100%);
  color: #fff; border-radius: 18px; padding: 36px 32px; margin: 40px 0;
  text-align: center; box-shadow: 0 12px 40px rgba(64,31,125,0.18);
}
.cta-box h3 { font-family: 'League Spartan', sans-serif; font-size: 24px; color:#fff; margin-bottom: 10px; }
.cta-box p { color: rgba(255,255,255,0.9); margin-bottom: 22px; font-size: 16px; }
.cta-btn {
  display: inline-block; background: #fff; color: var(--grape) !important;
  padding: 14px 30px; border-radius: 10px; font-weight: 700; text-decoration: none;
  transition: transform 0.3s;
}
.cta-btn:hover { transform: translateY(-2px); }

/* BLOG INDEX */
.index-hero { background: linear-gradient(165deg, #FDFCFE 0%, #F3EEF8 100%); padding: 72px 0 40px; }
.index-hero h1 {
  font-family: 'League Spartan', sans-serif; font-size: clamp(34px, 5vw, 52px);
  font-weight: 800; color: var(--grape); letter-spacing: -0.02em; margin-bottom: 14px;
}
.index-hero p { font-size: 19px; color: #555; max-width: 560px; }
.post-list { padding: 40px 0 64px; }
.post-card {
  display: block; text-decoration: none; color: inherit;
  border: 1px solid var(--stone); border-radius: 16px; padding: 28px 30px; margin-bottom: 20px;
  transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
}
.post-card:hover { border-color: rgba(177,79,197,0.35); box-shadow: 0 10px 34px rgba(64,31,125,0.08); transform: translateY(-2px); }
.post-card .eyebrow { margin-bottom: 14px; }
.post-card h2 {
  font-family: 'League Spartan', sans-serif; font-size: 24px; font-weight: 700;
  color: var(--grape); margin-bottom: 10px; line-height: 1.2;
}
.post-card p { color: #666; font-size: 16px; margin-bottom: 12px; }
.post-card .read { color: var(--amethyst); font-weight: 600; font-size: 14px; }

/* FOOTER */
footer { background: var(--stone-warm); padding: 48px 0; text-align: center; margin-top: 24px; }
.footer-logo-img { height: 44px; margin-bottom: 16px; }
footer p { font-size: 14px; color: #777; margin-bottom: 6px; }
footer a { color: var(--amethyst); text-decoration: none; }