/* blog.cleanthis.io — standalone stylesheet.
   Deliberately independent of the main site's style.css (a main-site change
   must never break the blog, and the blog carries everything it needs when
   it moves boxes) but built from the SAME design tokens + self-hosted
   Manrope, so the two read as one brand. Tokens are verbatim copies —
   if the main palette ever changes, update both. */

/* ── Self-hosted Manrope (copied into /fonts at build time) ── */
@font-face { font-family: "Manrope"; src: url("/fonts/manrope-400.woff2") format("woff2"); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: "Manrope"; src: url("/fonts/manrope-500.woff2") format("woff2"); font-weight: 500; font-style: normal; font-display: swap; }
@font-face { font-family: "Manrope"; src: url("/fonts/manrope-600.woff2") format("woff2"); font-weight: 600; font-style: normal; font-display: swap; }
@font-face { font-family: "Manrope"; src: url("/fonts/manrope-700.woff2") format("woff2"); font-weight: 700; font-style: normal; font-display: swap; }
@font-face { font-family: "Manrope"; src: url("/fonts/manrope-800.woff2") format("woff2"); font-weight: 800; font-style: normal; font-display: swap; }

/* ── Design tokens (verbatim from the main site) ── */
:root {
  --cti-lime:    #A8D85C;
  --cti-lime-2:  #B8E372;
  --cti-sage:    #7FC59A;
  --cti-teal:    #3FA89B;
  --cti-teal-2:  #2F8C81;
  --cti-navy:    #1B3A6B;
  --cti-navy-2:  #0F2D5C;

  --cti-bg:      #FAFAF7;
  --cti-surface: #FFFFFF;
  --cti-ink:     #0F1419;
  --cti-ink-2:   #2A3038;
  --cti-muted:   #5C6770;
  --cti-line:    #E6E4DD;
  --cti-line-2:  #D8D5CB;

  --cti-radius:     18px;
  --cti-radius-sm:  10px;
  --cti-radius-pill: 999px;

  --cti-font: "Manrope", system-ui, -apple-system, "Segoe UI", sans-serif;

  --cti-shadow-sm: 0 1px 2px rgba(15,20,25,0.04);
  --cti-shadow-md: 0 8px 30px rgba(15,20,25,0.06), 0 2px 6px rgba(15,20,25,0.04);
}
:root[data-theme="dark"] {
  --cti-lime:    #B8E372;
  --cti-lime-2:  #C9F088;
  --cti-sage:    #7FC59A;
  --cti-teal:    #4FBFB0;
  --cti-teal-2:  #3FA89B;
  --cti-navy:    #6FA3D4;
  --cti-navy-2:  #8AB8E0;

  --cti-bg:      #0E1518;
  --cti-surface: #161E22;
  --cti-ink:     #ECEFEA;
  --cti-ink-2:   #C8CFC9;
  --cti-muted:   #8B948D;
  --cti-line:    #243036;
  --cti-line-2:  #2E3C42;

  --cti-shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
  --cti-shadow-md: 0 8px 30px rgba(0,0,0,0.35), 0 2px 6px rgba(0,0,0,0.25);
}

/* ── Base ── */
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--cti-font);
  background: var(--cti-bg);
  color: var(--cti-ink);
  line-height: 1.6;
  transition: background 0.2s, color 0.2s;
}
a { color: var(--cti-teal); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
img { max-width: 100%; height: auto; }

.bl-shell { max-width: 780px; margin: 0 auto; padding: 0 22px; }

/* ── Nav ── */
.bl-nav {
  display: flex; align-items: center; justify-content: space-between;
  gap: 14px; padding: 18px 0 14px;
  border-bottom: 1px solid var(--cti-line);
}
.bl-logo { display: inline-flex; align-items: center; gap: 9px; color: var(--cti-ink); }
.bl-logo:hover { text-decoration: none; }
.bl-logo-mark svg { width: 28px; height: 28px; display: block; }
.bl-logo-text { font-weight: 800; font-size: 17px; letter-spacing: -0.02em; }
.bl-logo-accent { color: var(--cti-teal); }
.bl-logo-blog { font-weight: 600; color: var(--cti-muted); margin-left: 2px; }
.bl-nav-right { display: flex; align-items: center; gap: 14px; }
.bl-nav-link { font-weight: 600; font-size: 14.5px; color: var(--cti-ink-2); }
.bl-nav-link:hover { color: var(--cti-teal); text-decoration: none; }

/* Theme toggle — compact pill, sun/moon swap by theme */
.bl-theme-toggle {
  display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 28px;
  border-radius: var(--cti-radius-pill);
  border: 1.5px solid var(--cti-line-2);
  background: var(--cti-surface); color: var(--cti-ink-2);
  cursor: pointer; padding: 0;
}
.bl-theme-toggle:hover { border-color: var(--cti-teal); color: var(--cti-teal); }
.bl-theme-icon { display: none; line-height: 0; }
:root:not([data-theme="dark"]) .bl-theme-icon--moon { display: inline-flex; }
:root[data-theme="dark"] .bl-theme-icon--sun { display: inline-flex; }

/* ── Index ── */
.bl-main { padding-bottom: 28px; }
.bl-hero { padding: 40px 0 26px; }
.bl-hero h1 { margin: 0; font-size: 34px; font-weight: 800; letter-spacing: -0.02em; }
.bl-hero h1 em { font-style: normal; color: var(--cti-teal); }
.bl-hero-sub { margin: 10px 0 0; font-size: 16px; color: var(--cti-muted); max-width: 560px; }

.bl-cards { display: grid; gap: 22px; padding-bottom: 12px; }
.bl-card {
  display: block; overflow: hidden;
  background: var(--cti-surface);
  border: 1px solid var(--cti-line);
  border-radius: var(--cti-radius);
  box-shadow: var(--cti-shadow-sm);
  color: inherit;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.15s;
}
.bl-card:hover { text-decoration: none; border-color: var(--cti-teal); box-shadow: var(--cti-shadow-md); transform: translateY(-2px); }
.bl-card-cover { display: block; width: 100%; aspect-ratio: 1200 / 630; object-fit: cover; border-bottom: 1px solid var(--cti-line); }
.bl-card-cover--empty {
  aspect-ratio: 1200 / 320;
  background: linear-gradient(120deg, var(--cti-navy) 0%, var(--cti-teal) 70%, var(--cti-lime) 130%);
  opacity: 0.85;
}
.bl-card-body { padding: 18px 22px 20px; }
.bl-card-body h2 { margin: 0; font-size: 21px; font-weight: 800; letter-spacing: -0.015em; color: var(--cti-ink); }
.bl-card:hover h2 { color: var(--cti-teal); }
.bl-card-sub { margin: 7px 0 0; font-size: 15px; color: var(--cti-ink-2); }

.bl-meta { margin: 12px 0 0; font-size: 13.5px; color: var(--cti-muted); }
.bl-tag {
  display: inline-block; padding: 1px 9px;
  border: 1px solid var(--cti-line-2); border-radius: var(--cti-radius-pill);
  font-size: 12px; font-weight: 600; color: var(--cti-muted);
}

/* ── Post page ── */
.bl-post-head { padding: 40px 0 8px; }
.bl-post-head h1 { margin: 0; font-size: 32px; font-weight: 800; letter-spacing: -0.02em; line-height: 1.25; }
.bl-post-sub { margin: 12px 0 0; font-size: 17px; color: var(--cti-muted); }
.bl-post-cover { display: block; width: 100%; border-radius: var(--cti-radius); border: 1px solid var(--cti-line); margin: 18px 0 6px; }

.bl-post-body { font-size: 16px; color: var(--cti-ink-2); }
.bl-post-body h2 { margin: 34px 0 10px; font-size: 23px; font-weight: 800; letter-spacing: -0.015em; color: var(--cti-ink); }
.bl-post-body h3 { margin: 26px 0 8px; font-size: 18px; font-weight: 700; color: var(--cti-ink); }
.bl-post-body p { margin: 14px 0; }
.bl-post-body ul, .bl-post-body ol { margin: 14px 0; padding-left: 26px; }
.bl-post-body li { margin: 6px 0; }
.bl-post-body strong { color: var(--cti-ink); }
.bl-post-body img { border-radius: var(--cti-radius-sm); border: 1px solid var(--cti-line); }
.bl-post-body blockquote {
  margin: 16px 0; padding: 10px 18px;
  border-left: 3px solid var(--cti-teal);
  background: var(--cti-surface); border-radius: 6px;
  color: var(--cti-muted);
}
.bl-post-body code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.92em;
  background: var(--cti-surface);
  border: 1px solid var(--cti-line);
  border-radius: 6px; padding: 1px 6px;
}
.bl-post-body pre {
  background: var(--cti-surface);
  border: 1px solid var(--cti-line);
  border-radius: var(--cti-radius-sm);
  padding: 14px 16px; overflow-x: auto;
}
.bl-post-body pre code { background: none; border: 0; padding: 0; }
.bl-post-body hr { border: 0; border-top: 1px solid var(--cti-line); margin: 26px 0; }

.bl-back { margin: 30px 0 8px; font-weight: 600; }

/* ── Footer ── */
.bl-footer {
  margin-top: 26px; padding-top: 18px; padding-bottom: 30px;
  border-top: 1px solid var(--cti-line);
}
.bl-footer-links { margin: 0; font-size: 14px; color: var(--cti-muted); }
.bl-footer-legal { margin: 8px 0 0; font-size: 13px; color: var(--cti-muted); }

/* ── Small screens ── */
@media (max-width: 560px) {
  .bl-hero h1 { font-size: 28px; }
  .bl-post-head h1 { font-size: 26px; }
  .bl-card-body { padding: 15px 16px 17px; }
  .bl-nav-link { display: none; }
}