/* =========================================================
   Manny Se — personal brand
   Design tokens
   - paper : cool technical off-white (not cream)
   - ink   : slate-black for type & dark passages
   - teal  : the single "signal" accent — appears ONLY on
             the rare facts and on links, encoding the thesis
   Type roles
   - Newsreader      : display / voice  (editorial serif)
   - Hanken Grotesk  : body / reading   (clean grotesque)
   - JetBrains Mono  : labels / readings (the measured, technical layer)
   ========================================================= */

:root {
  --paper:   #F5F7F9;
  --paper-2: #FFFFFF;
  --ink:     #15181E;
  --slate:   #565F6B;
  --line:    #DCE1E7;
  --accent:  #0E7490;
  --accent-ink: #0A5566;

  --maxw: 760px;
  --gutter: clamp(20px, 6vw, 56px);

  --step-eyebrow: 0.72rem;
  --step-body:    1.0625rem;
  --step-lead:    clamp(1.15rem, 1rem + 0.6vw, 1.35rem);
  --step-h2:      clamp(1.35rem, 1.1rem + 1vw, 1.7rem);
  --step-hero:    clamp(2rem, 1.2rem + 3.6vw, 3.5rem);
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Hanken Grotesk", system-ui, sans-serif;
  font-size: var(--step-body);
  line-height: 1.65;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.wrap {
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ---- mono utility (labels, eyebrows, readings) ---- */
.mono {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: var(--step-eyebrow);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--slate);
  font-weight: 500;
}

/* =========================================================
   Top bar
   ========================================================= */
.topbar {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding-top: clamp(20px, 4vw, 34px);
  padding-bottom: clamp(20px, 4vw, 34px);
}
.topbar .name {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.82rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
}
.topbar nav {
  display: flex;
  gap: clamp(14px, 3vw, 26px);
}
.topbar nav a {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--slate);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  transition: color .18s ease, border-color .18s ease;
}
.topbar nav a:hover { color: var(--accent); border-color: var(--accent); }

/* =========================================================
   Hero
   ========================================================= */
.hero { padding-top: clamp(40px, 9vw, 96px); padding-bottom: clamp(48px, 10vw, 104px); }

.hero .eyebrow { display: block; margin-bottom: clamp(22px, 4vw, 34px); }

.hero h1 {
  font-family: "Newsreader", Georgia, serif;
  font-weight: 400;
  font-size: var(--step-hero);
  line-height: 1.1;
  letter-spacing: -0.012em;
  margin: 0 0 clamp(22px, 3vw, 30px);
  max-width: 19ch;
}
.hero h1 em {
  font-style: italic;
  color: var(--accent);
}

.hero .lead {
  font-size: var(--step-lead);
  color: var(--slate);
  margin: 0;
  max-width: 52ch;
  line-height: 1.55;
}
.hero .lead strong { color: var(--ink); font-weight: 600; }

/* =========================================================
   Section scaffolding
   ========================================================= */
.section {
  padding-top: clamp(40px, 7vw, 72px);
  padding-bottom: clamp(40px, 7vw, 72px);
  border-top: 1px solid var(--line);
}
.section > .eyebrow { display: block; margin-bottom: clamp(24px, 4vw, 36px); }

.section h2 {
  font-family: "Newsreader", Georgia, serif;
  font-weight: 400;
  font-size: var(--step-h2);
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin: 0 0 0.6em;
  max-width: 34ch;
}
.section p { margin: 0 0 1em; max-width: 60ch; }
.section p:last-child { margin-bottom: 0; }

/* =========================================================
   Signals — the rare facts, set as instrument readings
   ========================================================= */
.signals {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}
.signal {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px 28px;
  padding: clamp(20px, 3.4vw, 28px) 0;
  border-top: 1px solid var(--line);
}
.signal:first-child { border-top: 0; padding-top: 0; }

.signal .label { align-self: start; }

.signal .value {
  font-family: "Newsreader", Georgia, serif;
  font-size: clamp(1.6rem, 1.2rem + 1.8vw, 2.3rem);
  line-height: 1.05;
  letter-spacing: -0.015em;
  color: var(--accent);
  font-weight: 400;
}
.signal .gloss {
  color: var(--slate);
  font-size: 1rem;
  line-height: 1.55;
  max-width: 56ch;
}
.signal .gloss strong { color: var(--ink); font-weight: 600; }

@media (min-width: 620px) {
  .signal {
    grid-template-columns: 130px 1fr;
    align-items: baseline;
    gap: 4px 36px;
  }
  .signal .label { grid-row: 1 / span 2; padding-top: 0.55em; }
  .signal .value { grid-column: 2; }
  .signal .gloss { grid-column: 2; margin-top: 4px; }
}

/* =========================================================
   Writing teaser link
   ========================================================= */
.textlink {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid color-mix(in srgb, var(--accent) 35%, transparent);
  padding-bottom: 3px;
  margin-top: 6px;
  transition: border-color .18s ease, gap .18s ease;
}
.textlink:hover { border-color: var(--accent); gap: 0.75em; }

/* inline prose links (scoped to running text only, so they don't
   clash with .postlist, .backlink, .textlink or footer links) */
.section p a,
.post p a,
.post li a,
.post blockquote a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid color-mix(in srgb, var(--accent) 30%, transparent);
  transition: border-color .18s ease;
}
.section p a:hover,
.post p a:hover,
.post li a:hover,
.post blockquote a:hover { border-color: var(--accent); }

/* =========================================================
   Footer
   ========================================================= */
.foot {
  border-top: 1px solid var(--line);
  padding-top: clamp(34px, 5vw, 48px);
  padding-bottom: clamp(48px, 7vw, 72px);
  display: flex;
  flex-wrap: wrap;
  gap: 14px 28px;
  align-items: baseline;
  justify-content: space-between;
}
.foot .contacts { display: flex; flex-wrap: wrap; gap: 14px 24px; }
.foot a {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 2px;
  transition: color .18s ease, border-color .18s ease;
}
.foot a:hover { color: var(--accent); border-color: var(--accent); }
.foot .colophon { color: var(--slate); }

/* =========================================================
   Blog index + posts
   ========================================================= */
.postlist { list-style: none; margin: 0; padding: 0; }
.postlist li { border-top: 1px solid var(--line); }
.postlist li:first-child { border-top: 0; }
.postlist a {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: clamp(20px, 3vw, 26px) 0;
  text-decoration: none;
  color: var(--ink);
}
.postlist a:hover .ptitle { color: var(--accent); }
.postlist .pdate { font-family: "JetBrains Mono", ui-monospace, monospace; font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--slate); }
.postlist .ptitle {
  font-family: "Newsreader", Georgia, serif;
  font-size: clamp(1.25rem, 1rem + 1vw, 1.55rem);
  line-height: 1.25;
  letter-spacing: -0.01em;
  transition: color .18s ease;
}
.postlist .pexcerpt { color: var(--slate); font-size: 1rem; max-width: 60ch; }

.empty {
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: clamp(22px, 4vw, 32px);
  color: var(--slate);
  background: var(--paper-2);
}

/* article body */
.post { padding-top: clamp(28px, 5vw, 56px); padding-bottom: clamp(48px, 8vw, 88px); }
.post .pdate { font-family: "JetBrains Mono", ui-monospace, monospace; font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--slate); display: block; margin-bottom: 18px; }
.post h1 {
  font-family: "Newsreader", Georgia, serif;
  font-weight: 400;
  font-size: clamp(1.9rem, 1.3rem + 2.4vw, 2.8rem);
  line-height: 1.12;
  letter-spacing: -0.015em;
  margin: 0 0 clamp(24px, 4vw, 36px);
  max-width: 22ch;
}
.post h2 {
  font-family: "Newsreader", Georgia, serif;
  font-weight: 400;
  font-size: clamp(1.3rem, 1.1rem + 0.9vw, 1.6rem);
  letter-spacing: -0.01em;
  margin: 1.8em 0 0.5em;
}
.post p, .post ul, .post ol { max-width: 64ch; margin: 0 0 1.15em; }
.post ul, .post ol { padding-left: 1.2em; }
.post li { margin-bottom: 0.4em; }
.post blockquote {
  margin: 1.4em 0;
  padding-left: 1.1em;
  border-left: 2px solid var(--accent);
  color: var(--slate);
  font-style: italic;
}
.post code {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.86em;
  background: #EDF0F3;
  padding: 0.12em 0.4em;
  border-radius: 3px;
}
.post pre {
  background: var(--ink);
  color: #E7EBF0;
  padding: 18px 20px;
  border-radius: 4px;
  overflow-x: auto;
  font-size: 0.86rem;
  line-height: 1.6;
  margin: 1.4em 0;
  max-width: 100%;
}
.post pre code { background: none; padding: 0; color: inherit; }

.backlink {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--slate);
  text-decoration: none;
  display: inline-block;
  margin-top: clamp(32px, 5vw, 48px);
  border: 0;
}
.backlink:hover { color: var(--accent); }

/* =========================================================
   Quiet load-in (disabled for reduced motion)
   ========================================================= */
@media (prefers-reduced-motion: no-preference) {
  .reveal { opacity: 0; transform: translateY(12px); animation: rise .7s cubic-bezier(.2,.7,.2,1) forwards; }
  .reveal.d1 { animation-delay: .05s; }
  .reveal.d2 { animation-delay: .14s; }
  .reveal.d3 { animation-delay: .23s; }
  @keyframes rise { to { opacity: 1; transform: none; } }
}

/* focus visibility */
a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}