/* ============================================================
   CutTheCard — /dashboard/learn/ shared stylesheet
   Standalone, self-contained (no shared.css / shared.js dependency)
   so these pages render fully for logged-out visitors and crawlers.
   ============================================================ */

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

html, body { margin: 0; padding: 0; }

body {
  background: var(--bg-page, #0e1116);
  color: var(--text-secondary, #c7cad1);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--link, #4a90e2); }

/* ---------------------------------------------------------------
   Site header / nav (replaces the authenticated app sidebar on
   these public pages — no login required to view)
--------------------------------------------------------------- */
.learn-site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  max-width: 900px;
  margin: 0 auto;
  padding: 20px 20px 0;
}
.learn-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-headline, #e4e8f0);
  font-weight: 800;
  font-size: 15px;
}
.learn-brand img { height: 26px; width: auto; display: block; }
.learn-site-nav { display: flex; align-items: center; gap: 18px; font-size: 13px; }
.learn-site-nav a { color: var(--text-muted, #9aa0a6); text-decoration: none; font-weight: 600; }
.learn-site-nav a:hover { color: var(--text-headline, #e4e8f0); }
.learn-site-nav a.learn-nav-cta {
  background: #2563eb;
  color: #fff;
  padding: 8px 16px;
  border-radius: 6px;
}
.learn-site-nav a.learn-nav-cta:hover { background: #1d4fcc; }

/* ---------------------------------------------------------------
   Page wrap
--------------------------------------------------------------- */
.learn-page-wrap {
  max-width: 900px;
  margin: 0 auto;
  padding: 20px 20px 60px;
}

.learn-breadcrumb {
  font-size: 12.5px;
  color: var(--text-dim, #878c94);
  margin: 4px 0 20px;
}
.learn-breadcrumb a { color: var(--text-dim, #878c94); text-decoration: none; }
.learn-breadcrumb a:hover { color: var(--link, #4a90e2); }

/* ---------------------------------------------------------------
   Index / hub page
--------------------------------------------------------------- */
.learn-hero {
  text-align: center;
  padding: 32px 24px 24px;
  background: linear-gradient(135deg, var(--bg-inset, #12151c) 0%, #1a1e2a 100%);
  border: 1px solid var(--border, #2c2f38);
  border-radius: 12px;
  margin-bottom: 28px;
}
.learn-hero h1 { margin: 0 0 8px; font-size: 24px; font-weight: 800; color: var(--text-headline, #e4e8f0); }
.learn-hero p { font-size: 14px; color: var(--text-faint, #8a9099); line-height: 1.65; max-width: 560px; margin: 0 auto; }

.panel {
  background: var(--bg-panel, #171a21);
  border: 1px solid var(--border, #2c2f38);
  border-radius: 10px;
  padding: 22px 22px 6px;
}

.learn-section-label {
  font-size: 11px; font-weight: 700; letter-spacing: .08em;
  text-transform: uppercase; color: var(--link, #4a90e2);
  margin: 0 0 16px; padding-bottom: 8px; border-bottom: 1px solid var(--border, #2c2f38);
}

.learn-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}

.learn-card {
  background: var(--bg-inset, #12151c);
  border: 1px solid var(--border-alt, #2a2d36);
  border-radius: 10px;
  padding: 20px;
  text-decoration: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: border-color .15s, background .15s;
}
.learn-card:hover { border-color: var(--link, #4a90e2); background: var(--bg-sidebar, #141720); }
.learn-card-icon { font-size: 24px; }
.learn-card h2 { margin: 0; font-size: 14px; font-weight: 700; color: var(--text-heading, #d4d8df); line-height: 1.4; }
.learn-card p { margin: 0; font-size: 13px; color: var(--text-faint, #8a9099); line-height: 1.6; }
.learn-card-cta { font-size: 12px; color: var(--link, #4a90e2); margin-top: 4px; }

/* ---------------------------------------------------------------
   Article layout
--------------------------------------------------------------- */
.learn-article { margin-bottom: 8px; }

.learn-header { margin-bottom: 28px; }
.learn-tag {
  display: inline-block;
  font-size: 11px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase;
  color: var(--link, #4a90e2); background: #16213a; border: 1px solid #223257;
  padding: 4px 10px; border-radius: 20px; margin-bottom: 12px;
}
.learn-header h1 {
  font-size: 26px; font-weight: 800; color: var(--text-headline, #e4e8f0); line-height: 1.3; margin: 0 0 12px;
}
.learn-intro { font-size: 15px; color: var(--text-muted, #9aa0a6); line-height: 1.7; max-width: 680px; }

.learn-toc {
  background: var(--bg-inset, #12151c);
  border: 1px solid var(--border-alt, #2a2d36);
  border-radius: 10px;
  padding: 16px 20px;
  margin-bottom: 28px;
}
.learn-toc-label {
  font-size: 11px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase;
  color: var(--text-dim, #878c94); margin-bottom: 10px;
}
.learn-toc a {
  display: block; font-size: 13.5px; color: var(--link, #4a90e2); text-decoration: none; padding: 3px 0;
}
.learn-toc a:hover { text-decoration: underline; }

.learn-article section { margin-bottom: 32px; }
.learn-article h2 {
  font-size: 19px; font-weight: 800; color: var(--text-headline, #e4e8f0); margin: 0 0 14px;
  padding-top: 4px; scroll-margin-top: 16px;
}
.learn-article h3 { font-size: 15.5px; font-weight: 700; color: var(--text-heading, #d4d8df); margin: 0 0 8px; }
.learn-article p { font-size: 14.5px; color: var(--text-secondary, #b3b8c2); margin: 0 0 14px; }
.learn-article ul, .learn-article ol { font-size: 14.5px; color: var(--text-secondary, #b3b8c2); padding-left: 22px; margin: 0 0 14px; }
.learn-article li { margin-bottom: 6px; }
.learn-article strong { color: var(--text-headline, #e4e8f0); }

/* ---------------------------------------------------------------
   Comparison grid (used by avalanche-vs-snowball, etc.)
--------------------------------------------------------------- */
.learn-compare-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 20px 0;
}
.learn-compare-card {
  background: var(--bg-inset, #12151c);
  border: 1px solid var(--border-alt, #2a2d36);
  border-radius: 10px;
  padding: 18px 20px;
}
.learn-compare-avalanche { border-top: 3px solid var(--link, #4a90e2); }
.learn-compare-snowball { border-top: 3px solid #38bdf8; }
.learn-compare-icon { font-size: 22px; margin-bottom: 6px; }
.learn-compare-card h3 { margin: 0 0 8px; font-size: 16px; }
.learn-compare-card p { font-size: 13.5px; color: var(--text-muted, #9aa0a6); margin: 0 0 10px; }
.learn-compare-pro {
  font-size: 12.5px; color: var(--success, #4caf7d); margin-bottom: 6px; padding-left: 2px;
}
.learn-compare-con {
  font-size: 12.5px; color: #d9a441; padding: 8px 10px; background: #1a1710;
  border-left: 3px solid #d9a441; border-radius: 4px; margin-top: 8px;
}

/* ---------------------------------------------------------------
   Tables
--------------------------------------------------------------- */
.learn-table-wrap { overflow-x: auto; margin: 16px 0; border-radius: 8px; border: 1px solid var(--border-alt, #2a2d36); }
.learn-table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.learn-table thead th {
  background: var(--bg-panel, #171a21); color: var(--text-muted, #9aa0a6); text-align: left; font-weight: 700;
  font-size: 11.5px; text-transform: uppercase; letter-spacing: .04em;
  padding: 10px 14px; border-bottom: 1px solid var(--border-alt, #2a2d36); white-space: nowrap;
}
.learn-table tbody td {
  padding: 10px 14px; border-bottom: 1px solid var(--border-faint, #1e2128); color: var(--text-secondary, #c7cad1); white-space: nowrap;
}
.learn-table tbody tr:last-child td { border-bottom: none; }
.learn-table tbody tr:hover { background: #14171f; }
.learn-table .hl { color: var(--text-headline, #e4e8f0); font-weight: 700; }
.learn-table .good { color: var(--success, #4caf7d); font-weight: 700; }
.learn-table .warn { color: var(--danger, #e5636b); font-weight: 700; }

/* ---------------------------------------------------------------
   Callout / result boxes
--------------------------------------------------------------- */
.learn-callout {
  background: #10192b;
  border: 1px solid #223257;
  border-left: 4px solid var(--link, #4a90e2);
  border-radius: 8px;
  padding: 16px 18px;
  margin: 16px 0;
}
.learn-callout-snowball { background: #0d1e26; border-color: #1c3a45; border-left-color: #38bdf8; }
.learn-callout-warn { background: #241512; border-color: #3a231e; border-left-color: var(--danger, #e5636b); }
.learn-callout-info { background: var(--bg-inset, #12151c); border-color: var(--border-alt, #2a2d36); border-left-color: var(--text-dim, #878c94); }
.learn-callout-label { font-size: 13.5px; font-weight: 700; color: var(--text-headline, #e4e8f0); margin-bottom: 6px; }
.learn-callout p { margin: 0 0 10px; font-size: 13.5px; color: var(--text-secondary, #b3b8c2); }
.learn-callout p:last-child { margin-bottom: 0; }

.learn-result-row { display: flex; gap: 24px; flex-wrap: wrap; margin-top: 10px; }
.learn-result-item { min-width: 140px; }
.learn-result-label { font-size: 11px; text-transform: uppercase; letter-spacing: .05em; color: var(--text-dim, #878c94); margin-bottom: 3px; }
.learn-result-value { font-size: 20px; font-weight: 800; color: var(--text-headline, #e4e8f0); }
.learn-result-good { color: var(--success, #4caf7d); }
.learn-result-warn { color: var(--danger, #e5636b); }

/* ---------------------------------------------------------------
   Rule / decision cards
--------------------------------------------------------------- */
.learn-rule-card {
  display: flex; gap: 14px; align-items: flex-start;
  background: var(--bg-inset, #12151c); border: 1px solid var(--border-alt, #2a2d36); border-radius: 10px;
  padding: 16px 18px; margin-bottom: 12px; font-size: 13.5px; color: var(--text-secondary, #b3b8c2); line-height: 1.6;
}
.learn-rule-icon { font-size: 20px; flex-shrink: 0; margin-top: 1px; }

/* ---------------------------------------------------------------
   CTA box — links to the actual CutTheCard tools
--------------------------------------------------------------- */
.learn-cta-box {
  background: linear-gradient(135deg, #1a2235 0%, var(--bg-inset, #12151c) 100%);
  border: 1px solid #2c3a55;
  border-radius: 10px;
  padding: 22px 24px;
  text-align: center;
  margin: 20px 0 8px;
}
.learn-cta-label {
  font-size: 11px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase;
  color: var(--link, #4a90e2); margin-bottom: 8px;
}
.learn-cta-box p { font-size: 13.5px; color: var(--text-muted, #9aa0a6); margin: 0 0 16px; }
.learn-cta-btn {
  display: inline-block; background: #2563eb; color: #fff; font-weight: 700; font-size: 13.5px;
  padding: 11px 22px; border-radius: 7px; text-decoration: none; transition: background .15s;
}
.learn-cta-btn:hover { background: #1d4fcc; }
.learn-cta-secondary {
  display: inline-block; margin-left: 10px; font-size: 13px; color: var(--text-muted, #9aa0a6); text-decoration: none;
}
.learn-cta-secondary:hover { color: var(--text-headline, #e4e8f0); }

/* ---------------------------------------------------------------
   Related guides
--------------------------------------------------------------- */
.learn-related { margin-top: 12px; margin-bottom: 24px; }
.learn-related-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 14px;
}
.learn-related-card {
  display: flex; flex-direction: column; gap: 6px;
  background: var(--bg-inset, #12151c); border: 1px solid var(--border-alt, #2a2d36); border-radius: 10px;
  padding: 16px 18px; text-decoration: none; transition: border-color .15s, background .15s;
}
.learn-related-card:hover { border-color: var(--link, #4a90e2); background: var(--bg-sidebar, #141720); }
.learn-related-card strong { font-size: 13.5px; color: var(--text-heading, #d4d8df); line-height: 1.4; }
.learn-related-card span { font-size: 12.5px; color: var(--link, #4a90e2); }

/* ---------------------------------------------------------------
   Disclaimer + footer
--------------------------------------------------------------- */
.learn-disclaimer {
  background: var(--bg-inset, #12151c);
  border: 1px solid var(--border-alt, #2a2d36);
  border-radius: 8px;
  padding: 14px 16px;
  font-size: 12px;
  color: var(--text-dim, #878c94);
  line-height: 1.6;
  margin-top: 8px;
}

.learn-site-footer {
  max-width: 900px;
  margin: 32px auto 0;
  padding: 20px 20px 0;
  border-top: 1px solid var(--border-faint, #1e2128);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 12px;
  color: var(--text-copyright, #848ca0);
}
.learn-site-footer .learn-footer-links { display: flex; gap: 16px; }
.learn-site-footer a { color: var(--text-copyright, #848ca0); text-decoration: none; }
.learn-site-footer a:hover { color: var(--link, #4a90e2); }

/* ---------------------------------------------------------------
   Logged-in integration
   ---------------------------------------------------------------
   By default (anonymous visitor or crawler) these pages render
   exactly as a standalone public page: full-width, own header/
   footer, centered .learn-page-wrap, no sidebar — shared.css is
   loaded but .sidebar stays display:none via inline style and
   nothing here overrides that.

   Once the inline auth-check script (see bottom of each page)
   confirms a logged-in session, it adds body.learn-authed and
   reveals #sidebar. At that point .app-shell/.sidebar/.content
   from shared.css take over the left-rail layout automatically
   (.app-shell is always display:flex; .content is flex:1) — the
   only thing left to do here is retire our own standalone header
   and footer so the user isn't looking at two navs at once.
--------------------------------------------------------------- */
body.learn-authed .learn-site-header,
body.learn-authed .learn-site-footer {
  display: none;
}
/* .content already gets 24px/28px padding from shared.css; drop the
   page-wrap's own top padding so it doesn't stack awkwardly under
   the (now-hidden) header on authenticated views. */
body.learn-authed .learn-page-wrap {
  padding-top: 0;
}

/* ---------------------------------------------------------------
   Responsive
--------------------------------------------------------------- */
@media (max-width: 640px) {
  .learn-compare-grid { grid-template-columns: 1fr; }
  .learn-site-header { flex-direction: row; }
  .learn-site-nav { gap: 10px; }
  .learn-hero h1 { font-size: 20px; }
  .learn-header h1 { font-size: 21px; }
}

/* ---------------------------------------------------------------
   Light-theme overrides for soft-tinted components (v2.4.1)
   Same reasoning as shared.css's appendix: these use a saturated
   color on a dark-tinted background, which only reads correctly
   against a dark page.
--------------------------------------------------------------- */
:root[data-theme="light"] .learn-hero {
  background: linear-gradient(135deg, var(--bg-inset, #f7f8fa) 0%, #eef1f6 100%);
}
:root[data-theme="light"] .learn-tag {
  background: #dbeafe; border-color: #93c5fd;
}
:root[data-theme="light"] .learn-compare-con {
  color: #92400e; background: #fef3c7; border-left-color: #d9a441;
}
:root[data-theme="light"] .learn-table tbody tr:hover {
  background: #f1f2f5;
}
:root[data-theme="light"] .learn-callout {
  background: #dbeafe; border-color: #93c5fd;
}
:root[data-theme="light"] .learn-callout-snowball {
  background: #e0f2fe; border-color: #7dd3fc;
}
:root[data-theme="light"] .learn-callout-warn {
  background: #fee2e2; border-color: #fca5a5;
}
:root[data-theme="light"] .learn-cta-box {
  background: linear-gradient(135deg, #eaf1fd 0%, var(--bg-inset, #f7f8fa) 100%);
  border-color: #c9d6ec;
}