/* Alfcode journal
   Extends the shared site system instead of introducing a separate “blog
   theme”: the same type, rules, spacing, surfaces, and interaction language. */

/* ---------- index hero ---------- */
.bl-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(150px, 18vw, 220px) 0 clamp(64px, 8vw, 104px);
  border-bottom: 1px solid var(--line);
}

.bl-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(55% 60% at 12% 8%, var(--accent-soft), transparent 72%),
    radial-gradient(42% 46% at 88% 12%, var(--cyan-soft), transparent 74%);
  opacity: 0.7;
}

.bl-hero .container { position: relative; }

.bl-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(260px, 0.65fr);
  gap: clamp(48px, 8vw, 120px);
  align-items: end;
}

.bl-hero h1 {
  max-width: 11ch;
  margin: 0;
  font-family: var(--display);
  font-size: clamp(48px, 7.4vw, 100px);
  font-weight: 650;
  letter-spacing: -0.045em;
  line-height: 0.98;
}

.bl-hero h1 .serif {
  display: block;
  color: var(--accent-ink);
  font-style: italic;
  font-weight: 400;
}

.bl-hero-side {
  padding: 4px 0 4px clamp(24px, 3vw, 42px);
  border-left: 1px solid var(--line-2);
}

.bl-hero-side p {
  max-width: 34ch;
  color: var(--fg-2);
  font-size: clamp(16px, 1.45vw, 18px);
  line-height: 1.65;
}

.bl-hero-side a,
.bl-readmore {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--fg);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  text-decoration: none;
}

.bl-hero-side a { margin-top: 24px; }
.bl-hero-side svg,
.bl-readmore svg { width: 15px; height: 15px; transition: transform .3s var(--ease); }
.bl-hero-side a:hover svg,
.bl-card:hover .bl-readmore svg,
.bl-lead:hover .bl-readmore svg { transform: translate(3px, -3px); }

/* ---------- index stories ---------- */
.bl-main { padding-bottom: clamp(72px, 10vw, 128px); }

.bl-lead {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(300px, 0.75fr);
  gap: clamp(32px, 6vw, 84px);
  align-items: center;
  padding: clamp(42px, 6vw, 72px) 0;
  border-bottom: 1px solid var(--line);
  color: inherit;
  text-decoration: none;
}

.bl-lead-media {
  position: relative;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--r-l);
  background: var(--bg-2);
}

.bl-lead-media img,
.bl-card-media img,
.bl-post-cover img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.bl-lead-media img,
.bl-card-media img {
  transform: scale(1.005);
  transition: transform .7s var(--ease);
}

.bl-lead:hover .bl-lead-media img,
.bl-card:hover .bl-card-media img { transform: scale(1.045); }

.bl-lead-media .mark {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: var(--fg-4);
  font-family: var(--display);
  font-size: clamp(42px, 7vw, 82px);
  font-weight: 650;
}

.bl-index {
  display: block;
  color: var(--accent-ink);
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
}

.bl-lead-copy .bl-index { margin-bottom: 28px; }

.bl-lead h2 {
  max-width: 15ch;
  margin: 18px 0 16px;
  font-family: var(--display);
  font-size: clamp(32px, 3.8vw, 52px);
  font-weight: 600;
  letter-spacing: -0.035em;
  line-height: 1.04;
}

.bl-lead p {
  max-width: 43ch;
  color: var(--fg-2);
  font-size: 16px;
  line-height: 1.68;
}

.bl-grid {
  display: block;
  margin: 0;
}

.bl-card {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr) minmax(220px, 310px);
  gap: clamp(24px, 4vw, 54px);
  align-items: center;
  padding: clamp(28px, 4vw, 46px) 0;
  border-bottom: 1px solid var(--line);
  color: inherit;
  text-decoration: none;
}

.bl-card-copy { min-width: 0; }

.bl-card h3 {
  max-width: 24ch;
  margin: 12px 0 10px;
  font-family: var(--display);
  font-size: clamp(24px, 2.8vw, 36px);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.12;
  transition: color .25s var(--ease);
}

.bl-card:hover h3 { color: var(--accent-ink); }

.bl-card p {
  max-width: 58ch;
  color: var(--fg-2);
  font-size: 14.5px;
  line-height: 1.62;
}

.bl-card-media {
  aspect-ratio: 3 / 2;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--r-m);
  background: var(--bg-2);
}

.bl-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 9px;
  color: var(--fg-3);
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.bl-tag { color: var(--cyan); }
.bl-dot { color: var(--fg-4); }
.bl-meta a {
  color: inherit;
  text-decoration: none;
  transition: color .2s;
}
.bl-meta a:hover { color: var(--fg); }
.bl-readmore { margin-top: 20px; }

.bl-empty {
  padding: clamp(64px, 10vw, 120px) 0;
  border-bottom: 1px solid var(--line);
  color: var(--fg-3);
  font-size: 17px;
}

/* ---------- article ---------- */
.bl-post { padding-bottom: clamp(72px, 10vw, 128px); }

.bl-post-head {
  display: grid;
  grid-template-columns: minmax(190px, 0.34fr) minmax(0, 1fr);
  gap: clamp(42px, 7vw, 96px);
  align-items: end;
  padding: clamp(150px, 18vw, 210px) 0 clamp(46px, 6vw, 72px);
}

.bl-post-head h1 {
  max-width: 16ch;
  margin: 0;
  font-family: var(--display);
  font-size: clamp(42px, 6vw, 78px);
  font-weight: 650;
  letter-spacing: -0.042em;
  line-height: 1;
}

.bl-post-context {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: clamp(32px, 5vw, 58px);
}

.bl-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--fg-3);
  font-family: var(--mono);
  font-size: 12px;
  text-decoration: none;
  transition: color .2s;
}

.bl-back:hover { color: var(--fg); }
.bl-back svg { width: 14px; height: 14px; }

.bl-rule {
  width: 100%;
  height: 1px;
  margin: 0 0 clamp(36px, 5vw, 64px);
  background: linear-gradient(90deg, var(--accent), var(--line-2) 55%, transparent);
}

.bl-post-cover {
  width: 100%;
  aspect-ratio: 3 / 2;
  max-height: 720px;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--r-l);
  background: var(--bg-2);
}

.bl-reading-layout {
  display: grid;
  grid-template-columns: 190px minmax(0, 700px);
  gap: clamp(44px, 7vw, 90px);
  justify-content: center;
  align-items: start;
  margin-top: clamp(52px, 7vw, 86px);
}

.bl-reading-note {
  position: sticky;
  top: 112px;
  padding-top: 16px;
  border-top: 1px solid var(--accent);
}

.bl-reading-note span {
  display: block;
  color: var(--fg-4);
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.bl-reading-note strong {
  display: block;
  margin-top: 9px;
  color: var(--fg);
  font-size: 15px;
  font-weight: 550;
}

.bl-reading-note p {
  margin-top: 12px;
  color: var(--fg-3);
  font-size: 13px;
  line-height: 1.55;
}

.bl-reading-note a {
  color: var(--accent-ink);
  text-underline-offset: 3px;
}

.bl-body {
  min-width: 0;
  color: var(--fg-2);
  font-size: 17.5px;
  line-height: 1.78;
}

.bl-body > * + * { margin-top: 1.12em; }

.bl-body h2,
.bl-body h3,
.bl-body h4 {
  color: var(--fg);
  font-family: var(--display);
  letter-spacing: -0.025em;
  line-height: 1.15;
}

.bl-body h2 { margin-top: 2.15em; font-size: clamp(27px, 3vw, 34px); }
.bl-body h3 { margin-top: 1.8em; font-size: 23px; }
.bl-body h4 { margin-top: 1.6em; font-size: 19px; }
.bl-body strong { color: var(--fg); font-weight: 600; }
.bl-body a { color: var(--accent-ink); text-underline-offset: 3px; }
.bl-body ul,
.bl-body ol { padding-left: 1.25em; }
.bl-body li + li { margin-top: .48em; }

.bl-body blockquote {
  margin-left: 0;
  padding: 5px 0 5px 22px;
  border-left: 2px solid var(--accent);
  color: var(--fg);
  font-family: var(--serif);
  font-size: 21px;
  font-style: italic;
}

.bl-body code {
  padding: 2px 6px;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: var(--bg-2);
  font-family: var(--mono);
  font-size: .86em;
}

.bl-body pre {
  overflow-x: auto;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--r-m);
  background: var(--bg-2);
}

.bl-body pre code { padding: 0; border: 0; background: none; font-size: 13.5px; line-height: 1.7; }
.bl-body hr { height: 1px; margin: 2.3em 0; border: 0; background: var(--line); }

.bl-practice {
  position: relative;
  margin-top: clamp(42px, 6vw, 60px);
  padding: clamp(24px, 4vw, 34px);
  overflow: hidden;
  border: 1px solid var(--line-2);
  border-radius: var(--r-m);
  background:
    radial-gradient(circle at 92% 8%, color-mix(in srgb, var(--accent) 13%, transparent), transparent 42%),
    var(--bg-2);
}

.bl-practice::before {
  position: absolute;
  inset: 0 auto 0 0;
  width: 2px;
  background: var(--accent);
  content: '';
}

.bl-practice-kicker {
  display: block;
  color: var(--fg-4);
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.bl-practice p {
  max-width: 58ch;
  margin-top: 12px;
  color: var(--fg);
  font-size: 16px;
  line-height: 1.65;
}

.bl-practice-more {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 18px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .04em;
  text-decoration: none;
  text-transform: uppercase;
}

.bl-practice-more svg { width: 14px; height: 14px; }

.bl-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  max-width: 980px;
  margin: clamp(72px, 10vw, 120px) auto 0;
  padding: clamp(30px, 4vw, 46px) 0;
  border-top: 1px solid var(--line-2);
  border-bottom: 1px solid var(--line);
}

.bl-cta h3 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(25px, 3vw, 36px);
  font-weight: 600;
  letter-spacing: -0.03em;
}

.bl-cta p { max-width: 54ch; margin-top: 10px; color: var(--fg-2); font-size: 15px; }
.bl-cta .btn { flex: none; }
.bl-cta .btn svg { width: 15px; height: 15px; }

.bl-next {
  max-width: 980px;
  margin: clamp(72px, 9vw, 110px) auto 0;
}

.bl-next > h2 {
  margin-bottom: clamp(20px, 3vw, 34px);
  font-family: var(--display);
  font-size: clamp(32px, 4vw, 48px);
  letter-spacing: -0.035em;
}

.bl-next .bl-grid { border-top: 1px solid var(--line); }

/* ---------- responsive ---------- */
@media (max-width: 860px) {
  .bl-hero-grid,
  .bl-post-head {
    grid-template-columns: 1fr;
  }

  .bl-hero-grid { gap: 36px; }
  .bl-hero h1 { max-width: 12ch; }

  .bl-hero-side {
    max-width: 560px;
    padding: 24px 0 0;
    border-top: 1px solid var(--line-2);
    border-left: 0;
  }

  .bl-lead {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .bl-lead-copy .bl-index { margin-bottom: 20px; }

  .bl-card {
    grid-template-columns: 40px minmax(0, 1fr) minmax(180px, 230px);
    gap: 22px;
  }

  .bl-post-head { gap: 34px; }
  .bl-post-context { gap: 24px; }

  .bl-reading-layout {
    grid-template-columns: minmax(0, 700px);
    gap: 32px;
  }

  .bl-reading-note {
    position: static;
    display: grid;
    grid-template-columns: auto auto 1fr;
    gap: 10px 16px;
    align-items: baseline;
  }

  .bl-reading-note p { margin: 0; text-align: right; }
}

@media (max-width: 620px) {
  .bl-hero { padding: 132px 0 58px; }
  .bl-hero h1 { font-size: clamp(43px, 13vw, 60px); }
  .bl-main { padding-bottom: 72px; }

  .bl-lead { padding: 30px 0 38px; }
  .bl-lead h2 { font-size: 31px; }

  .bl-card {
    grid-template-columns: 34px minmax(0, 1fr);
    padding: 30px 0;
    content-visibility: auto;
    contain-intrinsic-size: auto 520px;
  }

  .bl-card-media {
    grid-column: 1 / -1;
    grid-row: 1;
    margin-bottom: 4px;
  }

  .bl-card > .bl-index {
    grid-column: 1;
    grid-row: 2;
    padding-top: 3px;
  }

  .bl-card-copy {
    grid-column: 2;
    grid-row: 2;
  }

  .bl-card h3 { font-size: 25px; }

  .bl-post-head { padding: 132px 0 38px; }
  .bl-post-head h1 { font-size: clamp(38px, 11.5vw, 55px); }
  .bl-post-cover { border-radius: var(--r-m); }
  .bl-reading-layout { margin-top: 42px; }

  .bl-reading-note {
    display: block;
    padding-top: 13px;
  }

  .bl-reading-note strong { display: inline-block; }
  .bl-reading-note p { margin-top: 8px; text-align: left; }
  .bl-body { font-size: 16.5px; line-height: 1.72; }

  .bl-cta {
    align-items: flex-start;
    flex-direction: column;
  }

  .bl-next .bl-card p { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .bl-lead-media img,
  .bl-card-media img { transition: none; }
}