/* TCGPursuit - Learn section shared styles.
   Brand tokens mirror the app + landing page so guides feel native, and the .ls-*
   "living screenshot" components reuse the app's visual language (cards, badges, the
   cyan accent) so illustrations stay current without real screenshots. */

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

:root {
  --bg:        #081528;
  --surface:   #0f2646;
  --surface2:  #163256;
  --surface3:  #1c3d66;
  --border:    #1e3f6a;
  --text:      #dff0f3;
  --text-dim:  #8ab4c4;
  --text-muted:#8aa3b3;
  --primary:   #54cbd1;
  --primary-h: #3ab8be;
  --primary-g: rgba(84,203,209,0.13);
  --accent:    #f4c521;
  --success:   #22c55e;
  --danger:    #ef4444;
  --warn:      #f59e0b;
}

html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-h); }
.container { max-width: 1120px; margin: 0 auto; padding: 0 28px; }

/* ── Nav ── shared menu comes from server/public/publicNav.js via build-learn.mjs */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 18px; border-radius: 9px; font-size: 14px; font-weight: 600;
  border: 1px solid var(--border); cursor: pointer; transition: all 0.16s; white-space: nowrap;
}
.btn-primary { background: var(--primary); color: #081528; border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-h); border-color: var(--primary-h); color: #081528; transform: translateY(-1px); box-shadow: 0 6px 24px rgba(84,203,209,0.25); }
.btn-ghost { background: transparent; color: var(--text); }
.btn-ghost:hover { border-color: var(--primary); color: var(--primary); }

/* ── Article ── */
.learn-article { max-width: 760px; margin: 0 auto; padding: 48px 28px 24px; }
.learn-breadcrumb { font-size: 13px; color: var(--text-muted); margin-bottom: 20px; }
.learn-breadcrumb a { color: var(--text-dim); }
.learn-eyebrow { font-size: 13px; font-weight: 700; color: var(--primary); letter-spacing: 0.04em; text-transform: uppercase; }
.learn-article h1 { font-size: 38px; line-height: 1.15; font-weight: 800; margin: 10px 0 14px; letter-spacing: -0.02em; }
.learn-meta { font-size: 13px; color: var(--text-muted); margin-bottom: 28px; display: flex; gap: 8px; align-items: center; }
.learn-meta span { display: inline-flex; align-items: center; }
.learn-lede { font-size: 19px; line-height: 1.6; color: var(--text-dim); margin-bottom: 30px; }
.learn-article h2 { font-size: 26px; font-weight: 750; margin: 40px 0 12px; letter-spacing: -0.01em; }
.learn-article h3 { font-size: 19px; font-weight: 700; margin: 28px 0 8px; }
.learn-article p  { margin: 0 0 16px; font-size: 17px; color: var(--text); }
.learn-article ul, .learn-article ol { margin: 0 0 18px 22px; }
.learn-article li { margin-bottom: 8px; font-size: 17px; }
.learn-article strong { color: #fff; font-weight: 650; }
.learn-article blockquote {
  border-left: 3px solid var(--primary); padding: 4px 0 4px 18px; margin: 0 0 18px;
  color: var(--text-dim); font-style: italic;
}
.learn-article hr { border: none; border-top: 1px solid var(--border); margin: 36px 0; }

/* Callouts */
.learn-tip, .learn-note {
  border: 1px solid var(--border); border-radius: 12px; padding: 16px 18px; margin: 22px 0;
  background: var(--surface); font-size: 16px;
}
.learn-tip   { border-left: 3px solid var(--accent); }
.learn-note  { border-left: 3px solid var(--primary); }
.learn-tip b, .learn-note b { color: #fff; }

/* ── Living screenshot frame ── */
.ls {
  margin: 26px 0; border: 1px solid var(--border); border-radius: 14px;
  background: linear-gradient(180deg, var(--surface) 0%, #0c2040 100%);
  overflow: hidden; box-shadow: 0 10px 40px rgba(0,0,0,0.35);
}
.ls-bar {
  display: flex; align-items: center; gap: 7px; padding: 10px 14px;
  border-bottom: 1px solid var(--border); background: rgba(0,0,0,0.18);
}
.ls-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--surface3); }
.ls-bar-label { margin-left: 8px; font-size: 12px; color: var(--text-muted); font-weight: 600; letter-spacing: 0.03em; }
.ls-body { padding: 20px; }
.ls-caption { font-size: 13px; color: var(--text-muted); text-align: center; margin: -14px 0 26px; }

/* Price tiers mock */
.ls-tiers { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.ls-tier { border: 1px solid var(--border); border-radius: 11px; padding: 14px; text-align: center; background: var(--surface2); }
.ls-tier.is-suggested { border-color: var(--primary); box-shadow: 0 0 0 1px var(--primary-g); background: var(--surface3); }
.ls-tier-label { font-size: 11px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-muted); font-weight: 700; }
.ls-tier-price { font-size: 26px; font-weight: 800; margin: 6px 0 2px; }
.ls-tier.is-suggested .ls-tier-price { color: var(--primary); }
.ls-tier-sub { font-size: 11px; color: var(--text-muted); }
.ls-sample { margin-top: 14px; font-size: 12px; color: var(--text-muted); text-align: center; }

/* Grade ROI mock */
.ls-roi { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.ls-roi-col { flex: 1; min-width: 110px; text-align: center; }
.ls-roi-label { font-size: 11px; text-transform: uppercase; letter-spacing: 0.04em; color: var(--text-muted); font-weight: 700; }
.ls-roi-val { font-size: 24px; font-weight: 800; margin-top: 4px; }
.ls-roi-arrow { color: var(--text-muted); font-size: 22px; }
.ls-roi-net .ls-roi-val { color: var(--success); }
.ls-badge {
  display: inline-block; margin-top: 16px; padding: 6px 14px; border-radius: 999px;
  font-size: 13px; font-weight: 700; background: rgba(34,197,94,0.14); color: var(--success);
  border: 1px solid rgba(34,197,94,0.4);
}
.ls-roi-foot { margin-top: 14px; font-size: 13px; color: var(--text-muted); text-align: center; }

/* Lot builder mock */
.ls-lot-cards { display: flex; gap: 10px; flex-wrap: wrap; justify-content: center; margin-bottom: 16px; }
.ls-card { width: 84px; }
.ls-card-img {
  height: 116px; border-radius: 7px; border: 1px solid var(--border);
  background: linear-gradient(150deg, #1c3d66, #0f2646);
  display: flex; align-items: flex-end; padding: 6px; position: relative;
}
.ls-card-img::before {
  content: ''; position: absolute; inset: 8px 8px 26px; border-radius: 4px;
  background: radial-gradient(circle at 40% 35%, rgba(84,203,209,0.22), transparent 60%);
}
.ls-card-name { font-size: 10px; color: var(--text-dim); line-height: 1.25; position: relative; }
.ls-lot-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; border-top: 1px solid var(--border); padding-top: 14px; }
.ls-lot-price { font-size: 15px; }
.ls-lot-price b { font-size: 20px; color: var(--primary); }
.ls-btn { background: var(--primary); color: #081528; border: none; border-radius: 8px; padding: 9px 16px; font-size: 13px; font-weight: 700; }

/* Set health card mock */
.ls-setcard { border: 1px solid var(--border); border-radius: 12px; padding: 16px; background: var(--surface2); max-width: 360px; margin: 0 auto; }
.ls-set-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; }
.ls-set-name { font-weight: 700; font-size: 16px; }
.ls-set-health { font-size: 12px; font-weight: 700; color: var(--success); }
.ls-set-bar { height: 7px; border-radius: 4px; background: var(--surface3); overflow: hidden; margin-bottom: 12px; }
.ls-set-bar i { display: block; height: 100%; background: var(--success); border-radius: 4px; }
.ls-set-stats { display: flex; gap: 18px; }
.ls-set-stat { font-size: 12px; color: var(--text-muted); }
.ls-set-stat b { display: block; font-size: 17px; color: var(--text); font-weight: 750; }

/* ── Inline CTA ── */
.learn-cta {
  margin: 36px 0 10px; border: 1px solid var(--primary); border-radius: 14px;
  padding: 24px; background: var(--primary-g); text-align: center;
}
.learn-cta h3 { font-size: 20px; margin-bottom: 8px; }
.learn-cta p { color: var(--text-dim); margin-bottom: 16px; font-size: 16px; }

/* Related */
.learn-related { max-width: 760px; margin: 30px auto 0; padding: 0 28px; }
.learn-related h4 { font-size: 14px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-muted); margin-bottom: 12px; }
.learn-related a { display: block; padding: 12px 0; border-top: 1px solid var(--border); color: var(--text); font-weight: 600; }
.learn-related a:hover { color: var(--primary); }

/* ── Hub (index) ── */
.learn-hero { padding: 56px 28px 8px; max-width: 1120px; margin: 0 auto; text-align: center; }
.learn-hero h1 { font-size: 44px; font-weight: 800; letter-spacing: -0.02em; margin-bottom: 12px; }
.learn-hero p { font-size: 19px; color: var(--text-dim); max-width: 600px; margin: 0 auto; }
.learn-grid { max-width: 1120px; margin: 0 auto; padding: 36px 28px 20px; display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 18px; }
.learn-card {
  display: block; border: 1px solid var(--border); border-radius: 14px; padding: 22px;
  background: var(--surface); transition: border-color 0.16s, transform 0.16s;
}
.learn-card:hover { border-color: var(--primary); transform: translateY(-2px); }
.learn-card-cat { font-size: 12px; font-weight: 700; color: var(--primary); text-transform: uppercase; letter-spacing: 0.04em; }
.learn-card h2 { font-size: 20px; margin: 8px 0; color: var(--text); line-height: 1.3; }
.learn-card p { font-size: 15px; color: var(--text-muted); }

/* ── Footer ── */
footer { border-top: 1px solid var(--border); margin-top: 60px; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 18px; flex-wrap: wrap; padding: 28px; }
.footer-logo img { height: 34px; opacity: 0.75; }
.footer-links { display: flex; gap: 18px; }
.footer-links a { color: var(--text-dim); font-size: 14px; }
.footer-copy { font-size: 13px; color: var(--text-muted); }

@media (max-width: 680px) {
  .learn-article h1 { font-size: 30px; }
  .learn-hero h1 { font-size: 33px; }
  .ls-tiers { grid-template-columns: 1fr; }
  .ls-roi { flex-direction: column; }
  .ls-roi-arrow { transform: rotate(90deg); }
}