/* ═══════════════════════════════════════════════════
   aihaber — Guide Detail (Mockup A · 3-col reading)
   ═══════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Crimson+Pro:ital,wght@0,400;0,600;1,400;1,600&display=swap');

.gdA {
  --gd-fg:#0a0a0a; --gd-fg-mute:#444; --gd-fg-soft:#888; --gd-fg-faint:#999;
  --gd-bg:#fff; --gd-bg-soft:#fafaf5; --gd-bg-tag:#f5f4ef; --gd-line:#ebeae5;
  font-family: var(--font-body, 'Inter', sans-serif);
  color: var(--gd-fg); background: var(--paper, #fff);
}
[data-theme="dark"] .gdA {
  --gd-fg:#f5f5f0; --gd-fg-mute:#b8b8b0; --gd-fg-soft:#888; --gd-fg-faint:#777;
  --gd-bg:#1c1c1c; --gd-bg-soft:#242424; --gd-bg-tag:#2a2a2a; --gd-line:#2a2a2a;
}
.gdA .ai-gpt{background:#0d8a72;color:#fff} .gdA .ai-claude{background:#cc785c;color:#fff}
.gdA .ai-perp{background:#20b8cd;color:#fff} .gdA .ai-grok{background:#0a0a0a;color:#fff}

.gdA-crumbs {
  padding: 12px 32px;
  border-bottom: 1px solid var(--gd-line);
  font: 600 11px/1 var(--font-mono);
  color: var(--gd-fg-soft);
  letter-spacing: .5px; text-transform: uppercase;
  display: flex; gap: 10px; align-items: center; flex-wrap: wrap;
}
.gdA-crumbs a { color: inherit; text-decoration: none; }
.gdA-crumbs em { color: var(--gd-fg); font-weight: 800; font-style: normal; }

/* HERO — magazine cover */
.gdA-hero {
  padding: 48px 56px 32px;
  background: var(--gd-bg-soft);
  border-bottom: 1px solid var(--gd-line);
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 48px;
  align-items: center;
}
.gdA-hero__info { min-width: 0; }
.gdA-hero__meta-top {
  display: flex; gap: 8px;
  margin-bottom: 20px;
  flex-wrap: wrap;
  align-items: center;
}
.gdA-hero__meta-top span {
  font: 800 10px/1 var(--font-body);
  padding: 5px 8px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
}
.gdA-hero__cat { background: #0a0a0a; color: var(--c-acc-lime, #cdfa00); }
.gdA-hero__lvl { background: var(--c-acc-lime, #cdfa00); color: #0a0a0a; }
.gdA-hero__read {
  font: 600 11px/1 var(--font-mono) !important;
  color: var(--gd-fg-soft) !important;
  letter-spacing: .5px;
  background: transparent !important;
  padding: 0 !important;
}
.gdA-hero__title {
  font: 900 56px/1.02 var(--font-display);
  letter-spacing: -2.4px;
  margin: 0 0 16px;
  text-wrap: balance;
  color: var(--gd-fg);
}
.gdA-hero__lead {
  font: 400 19px/1.55 'Crimson Pro', Georgia, serif;
  font-style: italic;
  color: var(--gd-fg-mute);
  margin: 0 0 24px;
  text-wrap: pretty;
  max-width: 580px;
}
.gdA-hero__author {
  display: flex; align-items: center; gap: 14px;
}
.gdA-hero__av {
  width: 48px; height: 48px;
  border-radius: 50%;
  background: #0a0a0a;
  color: var(--c-acc-lime, #cdfa00);
  display: flex; align-items: center; justify-content: center;
  font: 800 14px/1 var(--font-display);
  overflow: hidden;
}
.gdA-hero__av img { width: 100%; height: 100%; object-fit: cover; }
.gdA-hero__author-meta {
  font: 500 12px/1.5 var(--font-body);
  color: var(--gd-fg-mute);
}
.gdA-hero__author-meta b {
  color: var(--gd-fg);
  font-weight: 800;
  display: block;
  font-size: 13px;
}

.gdA-hero__visual {
  aspect-ratio: 1 / 1;
  background: #0a0a0a;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.gdA-hero__num {
  position: absolute;
  left: 24px; top: 24px;
  font: 900 56px/1 var(--font-display);
  color: var(--c-acc-lime, #cdfa00);
  letter-spacing: -3px;
}
.gdA-hero__visual-cat {
  position: absolute;
  left: 24px; bottom: 24px;
  font: 800 11px/1 var(--font-body);
  color: var(--c-acc-lime, #cdfa00);
  letter-spacing: 3px;
}
.gdA-hero__visual-art {
  font: 700 18px/1.5 var(--font-mono);
  color: var(--c-acc-lime, #cdfa00);
  text-align: center;
  padding: 0 32px;
}
.gdA-hero__visual-art .l { display: block; }
.gdA-hero__visual-art .l1 { color: rgba(205,250,0,.4); }
.gdA-hero__visual-art .l2 { color: #fff; font-size: 24px; }
.gdA-hero__visual-art .l3 { color: rgba(205,250,0,.4); }

/* LAYOUT */
.gdA-layout {
  display: grid;
  grid-template-columns: 200px minmax(0, 1fr) 280px;
  gap: 32px;
  padding: 32px 56px;
  align-items: start;
  max-width: 1500px;
  margin: 0 auto;
}

/* TOC */
.gdA-toc {
  position: sticky;
  top: 20px;
  align-self: start;
}
.gdA-toc__title {
  font: 900 10px/1 var(--font-body);
  color: var(--gd-fg-soft);
  letter-spacing: 2px;
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--gd-fg);
  text-transform: uppercase;
}
.gdA-toc ul {
  list-style: none;
  margin: 0; padding: 0;
  display: flex; flex-direction: column; gap: 1px;
}
.gdA-toc ul li {
  font: 700 12px/1.4 var(--font-body);
  color: var(--gd-fg-soft);
  padding: 8px 0 8px 11px;
  border-left: 2px solid var(--gd-line);
  cursor: pointer;
  letter-spacing: -.1px;
}
.gdA-toc ul li.is-active {
  color: var(--gd-fg);
  border-color: var(--c-acc-lime, #cdfa00);
  background: var(--gd-bg-soft);
}
.gdA-toc ul li b {
  font: 900 9px/1 var(--font-mono);
  margin-right: 6px;
  letter-spacing: .5px;
  color: inherit;
}
.gdA-toc__progress {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--gd-line);
}
.gdA-toc__p-lab {
  font: 700 9px/1 var(--font-body);
  color: var(--gd-fg-soft);
  letter-spacing: 1.5px;
  margin-bottom: 8px;
  text-transform: uppercase;
  display: flex;
  justify-content: space-between;
}
.gdA-toc__p-lab b { color: var(--gd-fg); }
.gdA-toc__bar {
  height: 4px;
  background: var(--gd-line);
}
.gdA-toc__bar i {
  display: block;
  width: 0;
  height: 100%;
  background: var(--c-acc-lime, #cdfa00);
  transition: width .25s;
}

/* MAIN */
.gdA-main { min-width: 0; }
.gdA-article {
  font: 400 17px/1.75 'Crimson Pro', Georgia, serif;
  color: var(--gd-fg);
  text-wrap: pretty;
  max-width: 680px;
}
.gdA-article h2 {
  font: 900 32px/1.15 var(--font-display);
  letter-spacing: -1.2px;
  margin: 48px 0 20px;
  color: var(--gd-fg);
  text-wrap: balance;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  scroll-margin-top: 20px;
}
.gdA-article h2:first-child { margin-top: 0; }
.gdA-article h3 {
  font: 900 20px/1.3 var(--font-display);
  letter-spacing: -.5px;
  margin: 32px 0 12px;
  color: var(--gd-fg);
  scroll-margin-top: 20px;
}
.gdA-article p { margin: 0 0 18px; }
.gdA-article p strong {
  font-weight: 700;
  color: #0a0a0a;
  background: var(--c-acc-lime, #cdfa00);
  padding: 0 4px;
}
.gdA-article code {
  font: 600 14px var(--font-mono);
  background: #0a0a0a;
  color: var(--c-acc-lime, #cdfa00);
  padding: 2px 6px;
  letter-spacing: .2px;
}
.gdA-article ul, .gdA-article ol {
  margin: 0 0 18px;
  padding-left: 24px;
}
.gdA-article ul li, .gdA-article ol li { margin-bottom: 8px; }
.gdA-article pre,
.gdA-article .code-block {
  background: #0a0a0a;
  color: #e8e7e2;
  padding: 18px;
  font: 500 13px/1.7 var(--font-mono);
  overflow-x: auto;
  border-left: 3px solid var(--c-acc-lime, #cdfa00);
  margin: 18px 0;
}
.gdA-article pre code {
  background: transparent;
  color: inherit;
  padding: 0;
}
.gdA-article blockquote {
  border-left: 3px solid var(--gd-fg);
  padding: 8px 18px;
  margin: 24px 0;
  font: italic 600 17px/1.55 'Crimson Pro', Georgia, serif;
  color: var(--gd-fg);
  background: var(--gd-bg-soft);
}

.gdA-callout {
  background: #0a0a0a;
  color: #fff;
  padding: 24px 28px;
  border-left: 4px solid var(--c-acc-lime, #cdfa00);
  margin: 24px 0;
  font: 400 16px/1.55 'Crimson Pro', Georgia, serif;
  font-style: italic;
  text-wrap: pretty;
  position: relative;
}
.gdA-callout b {
  color: var(--c-acc-lime, #cdfa00);
  font-style: normal;
  font-weight: 800;
  font-family: var(--font-display);
  display: block;
  margin-bottom: 6px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  font-size: 11px;
}

/* COMMENTS */
.gdA-comments {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 2px solid var(--gd-fg);
}

/* ASIDE */
.gdA-aside {
  position: sticky;
  top: 20px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  align-self: start;
}
.gdA-box {
  background: var(--gd-bg);
  border: 1px solid var(--gd-line);
  padding: 18px;
}
.gdA-box h4 {
  font: 900 11px/1 var(--font-display);
  letter-spacing: 2px;
  margin: 0 0 14px;
  color: var(--gd-fg);
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 8px;
  justify-content: space-between;
}
.gdA-box h4::before {
  content: '';
  width: 4px;
  height: 13px;
  background: var(--c-acc-lime, #cdfa00);
}
.gdA-box__ct {
  font: 600 10px/1 var(--font-mono);
  color: var(--gd-fg-soft);
  letter-spacing: .5px;
}

.gdA-author-box__head {
  display: flex; gap: 12px; margin-bottom: 14px;
}
.gdA-author-box__av {
  width: 48px; height: 48px;
  border-radius: 50%;
  background: #0a0a0a;
  color: var(--c-acc-lime, #cdfa00);
  display: flex; align-items: center; justify-content: center;
  font: 800 14px/1 var(--font-display);
  overflow: hidden;
}
.gdA-author-box__av img { width: 100%; height: 100%; object-fit: cover; }
.gdA-author-box__nm { font: 800 14px/1.2 var(--font-body); color: var(--gd-fg); }
.gdA-author-box__role {
  font: 600 11px/1.3 var(--font-mono);
  color: var(--gd-fg-soft);
  margin-top: 3px;
  letter-spacing: .3px;
}
.gdA-author-box__bio {
  font: 500 12px/1.55 var(--font-body);
  color: var(--gd-fg-mute);
  text-wrap: pretty;
  margin: 0 0 12px;
}
.gdA-author-box__stats {
  display: flex; gap: 14px;
  font: 600 10px/1 var(--font-mono);
  color: var(--gd-fg-soft);
  letter-spacing: .5px;
  text-transform: uppercase;
}
.gdA-author-box__stats b {
  color: var(--gd-fg);
  font-size: 14px;
  font-family: var(--font-display);
  display: block;
  margin-bottom: 3px;
  font-weight: 800;
}

.gdA-facts {
  display: flex; flex-direction: column; gap: 1px;
  background: var(--gd-line);
}
.gdA-facts__f {
  display: grid; grid-template-columns: 1fr auto;
  padding: 11px 12px;
  background: var(--gd-bg);
  font: 600 12px/1.4 var(--font-body);
  gap: 10px; align-items: center;
}
.gdA-facts__f .k {
  color: var(--gd-fg-soft);
  font: 600 10px/1 var(--font-mono);
  letter-spacing: .5px;
  text-transform: uppercase;
}
.gdA-facts__f .v {
  color: var(--gd-fg);
  font-weight: 800;
  text-align: right;
}
.gdA-facts__f .v.is-lime {
  background: var(--c-acc-lime, #cdfa00);
  color: #0a0a0a;
  padding: 4px 7px;
  font-size: 10px;
  letter-spacing: .5px;
  text-transform: uppercase;
}

.gdA-related-list {
  display: flex; flex-direction: column; gap: 1px;
  background: var(--gd-line);
}
.gdA-related-list__r {
  padding: 12px;
  background: var(--gd-bg);
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 10px;
  align-items: flex-start;
  text-decoration: none;
  color: inherit;
}
.gdA-related-list__num {
  font: 900 18px/1 var(--font-display);
  color: var(--c-acc-lime, #cdfa00);
  background: #0a0a0a;
  padding: 4px 6px;
  letter-spacing: -.5px;
  text-align: center;
}
.gdA-related-list__lab {
  font: 700 9px/1 var(--font-mono);
  color: var(--gd-fg-soft);
  letter-spacing: .5px;
  text-transform: uppercase;
  margin-bottom: 4px;
}
.gdA-related-list__info h6 {
  font: 800 13px/1.3 var(--font-body);
  margin: 0 0 4px;
  letter-spacing: -.2px;
  color: var(--gd-fg);
}
.gdA-related-list__meta {
  font: 500 10px/1 var(--font-mono);
  color: var(--gd-fg-soft);
  letter-spacing: .3px;
}

.gdA-share-row { display: flex; flex-direction: column; gap: 5px; }
.gdA-share-btn {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 11px;
  background: var(--gd-bg);
  border: 1px solid var(--gd-line);
  font: 700 12px/1 var(--font-body);
  color: var(--gd-fg);
  text-decoration: none;
}
.gdA-share-btn:hover { background: #0a0a0a; color: #fff; border-color: #0a0a0a; }
.gdA-share-btn__ic {
  width: 22px; height: 22px;
  display: inline-flex; align-items: center; justify-content: center;
  font: 800 10px/1 var(--font-display);
  color: #fff;
}

.gdA-tag-cloud { display: flex; flex-wrap: wrap; gap: 5px; }
.gdA-tag-cloud a {
  font: 700 11px/1 var(--font-body);
  padding: 6px 9px;
  background: var(--gd-bg-tag);
  color: var(--gd-fg-mute);
  text-decoration: none;
}
.gdA-tag-cloud a.is-hot {
  background: var(--c-acc-lime, #cdfa00);
  color: #0a0a0a;
  font-weight: 800;
}

@media (max-width: 1200px) {
  .gdA-layout { grid-template-columns: 200px minmax(0, 1fr); }
  .gdA-aside { display: none; }
}
@media (max-width: 900px) {
  .gdA-hero { grid-template-columns: 1fr; padding: 36px 24px 24px; gap: 28px; }
  .gdA-hero__title { font-size: 36px; letter-spacing: -1.5px; }
  .gdA-hero__lead { font-size: 17px; }
  .gdA-hero__visual { aspect-ratio: 16 / 9; }
  .gdA-layout { grid-template-columns: 1fr; padding: 24px 18px; }
  .gdA-toc { position: static; }
  .gdA-article { font-size: 16px; max-width: 100%; }
  .gdA-article h2 { font-size: 26px; letter-spacing: -.8px; }
  .gdA-crumbs { padding: 10px 18px; }
}