/* ──────────────────────────────────────────────────────────────
   The Time Machine Archive — a design system in three colors
   and two typefaces. Treats the date as the protagonist.
   ────────────────────────────────────────────────────────────── */

:root {
  /* warm parchment, tinted ink, faded oxblood, muted gold */
  --paper:        oklch(96% 0.018 82);
  --paper-deep:   oklch(92% 0.025 80);
  --rule:         oklch(82% 0.030 78);
  --rule-soft:    oklch(88% 0.022 78);
  --ink:          oklch(22% 0.020 250);
  --ink-soft:     oklch(40% 0.025 250);
  --ink-faint:    oklch(58% 0.020 250);
  --oxblood:      oklch(42% 0.130 22);
  --oxblood-soft: oklch(55% 0.110 22);
  --gold:         oklch(72% 0.110 78);

  --measure: 36rem;
  --col: 64rem;

  /* fluid type — modular scale roughly 1.25 */
  --t-xs:   clamp(0.72rem, 0.68rem + 0.18vw, 0.80rem);
  --t-sm:   clamp(0.86rem, 0.82rem + 0.20vw, 0.95rem);
  --t-base: clamp(1.05rem, 0.98rem + 0.30vw, 1.18rem);
  --t-md:   clamp(1.22rem, 1.10rem + 0.50vw, 1.42rem);
  --t-lg:   clamp(1.55rem, 1.30rem + 1.00vw, 2.10rem);
  --t-xl:   clamp(2.20rem, 1.60rem + 2.40vw, 3.40rem);
  --t-2xl:  clamp(3.00rem, 2.00rem + 4.00vw, 5.40rem);
  --t-mega: clamp(5.0rem, 3.0rem + 9vw, 11rem);
}

/* fonts via @import so we don't need to touch Base.astro for prefetch hints */
@import url("https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght,SOFT,WONK@0,9..144,300..900,0..100,0..1;1,9..144,300..900,0..100,0..1&family=Newsreader:ital,opsz,wght@0,6..72,200..800;1,6..72,200..800&display=swap");

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

html { background: var(--paper); }

body {
  font-family: "Newsreader", "Iowan Old Style", Palatino, Georgia, serif;
  font-optical-sizing: auto;
  font-size: var(--t-base);
  line-height: 1.55;
  color: var(--ink);
  background:
    radial-gradient(1200px 600px at 12% -10%, oklch(94% 0.030 80) 0%, transparent 60%),
    radial-gradient(900px 700px at 100% 100%, oklch(94% 0.025 78) 0%, transparent 65%),
    var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection { background: var(--gold); color: var(--ink); }

/* ── shell ─────────────────────────────────────────────────── */

.shell {
  max-width: var(--col);
  margin: 0 auto;
  padding: clamp(1rem, 2vw, 2rem) clamp(1.25rem, 3vw, 2.5rem);
}

.masthead {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: end;
  gap: 1rem;
  padding: clamp(1.5rem, 3vw, 2.5rem) 0 1rem;
  border-bottom: 1px solid var(--rule);
  margin-bottom: clamp(2rem, 4vw, 3.5rem);
}

.masthead__brand {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--ink);
}
.masthead__brand .mark {
  font-family: "Fraunces", serif;
  font-variation-settings: "opsz" 144, "wght" 600, "SOFT" 100, "WONK" 1;
  font-size: var(--t-md);
  letter-spacing: -0.025em;
  line-height: 1;
}
.masthead__brand .sub {
  font-family: "Fraunces", serif;
  font-style: italic;
  font-variation-settings: "opsz" 144, "wght" 380;
  color: var(--ink-soft);
  font-size: var(--t-sm);
  letter-spacing: 0.02em;
}

.masthead nav {
  display: flex;
  gap: 1.25rem;
  font-family: "Fraunces", serif;
  font-variation-settings: "opsz" 14, "wght" 500;
  font-size: var(--t-sm);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}
.masthead nav a {
  color: var(--ink-soft);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: color 180ms ease, border-color 180ms ease;
}
.masthead nav a:hover { color: var(--oxblood); border-bottom-color: var(--oxblood-soft); }

.colophon {
  margin-top: 5rem;
  padding: 2rem 0 3rem;
  border-top: 1px solid var(--rule);
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: end;
  gap: 1rem;
  color: var(--ink-faint);
  font-size: var(--t-sm);
}
.colophon em { font-family: "Fraunces", serif; font-style: italic; font-variation-settings: "opsz" 144; color: var(--ink-soft); }

/* ── home: time-machine console ────────────────────────────── */

.console {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(2.5rem, 5vw, 4rem);
}

.lede {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.5rem;
}
.lede h1 {
  font-family: "Fraunces", serif;
  font-variation-settings: "opsz" 144, "wght" 380, "SOFT" 30, "WONK" 1;
  font-size: var(--t-xl);
  line-height: 0.98;
  letter-spacing: -0.035em;
  margin: 0;
  max-width: 14ch;
}
.lede h1 em {
  font-style: italic;
  font-variation-settings: "opsz" 144, "wght" 380, "SOFT" 100, "WONK" 1;
  color: var(--oxblood);
}
.lede__meta {
  font-family: "Fraunces", serif;
  font-variation-settings: "opsz" 14, "wght" 500;
  font-size: var(--t-sm);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--ink-faint);
}
.lede__intro {
  max-width: 38ch;
  font-size: var(--t-md);
  line-height: 1.45;
  color: var(--ink-soft);
}

.cta {
  display: inline-flex;
  align-items: baseline;
  gap: 0.6rem;
  font-family: "Fraunces", serif;
  font-variation-settings: "opsz" 144, "wght" 500;
  font-style: italic;
  font-size: var(--t-md);
  color: var(--oxblood);
  text-decoration: none;
  border-bottom: 1px solid var(--oxblood-soft);
  padding-bottom: 4px;
  transition: color 180ms ease, transform 240ms cubic-bezier(0.22, 1, 0.36, 1);
  align-self: start;
}
.cta:hover { color: var(--ink); }
.cta:hover .cta__arrow { transform: translateX(6px); }
.cta__arrow { display: inline-block; transition: transform 240ms cubic-bezier(0.22, 1, 0.36, 1); }

/* the spine: years rendered like a console readout */

.spine {
  display: grid;
  grid-template-columns: minmax(7rem, max-content) 1fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: start;
}
.spine__years {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  position: sticky;
  top: 2rem;
  border-right: 1px solid var(--rule);
  padding-right: clamp(1rem, 2vw, 1.5rem);
}
.spine__year {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.25rem;
  text-decoration: none;
  color: var(--ink);
  text-align: right;
}
.spine__year .num {
  font-family: "Fraunces", serif;
  font-variation-settings: "opsz" 144, "wght" 320, "SOFT" 50, "WONK" 1;
  font-size: var(--t-lg);
  line-height: 0.9;
  letter-spacing: -0.04em;
  font-feature-settings: "lnum" 0;
  color: var(--ink);
  transition: color 180ms ease;
}
.spine__year:hover .num { color: var(--oxblood); }
.spine__year .count {
  font-family: "Fraunces", serif;
  font-variation-settings: "opsz" 14, "wght" 500;
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.spine__year .bar {
  height: 2px;
  margin-top: 0.4rem;
  background: var(--ink);
  opacity: 0.85;
  margin-left: auto;
  transition: background 180ms ease;
}
.spine__year:hover .bar { background: var(--oxblood); }

.dispatch-rail {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.section-eyebrow {
  font-family: "Fraunces", serif;
  font-variation-settings: "opsz" 14, "wght" 600;
  font-size: var(--t-sm);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--ink-faint);
  margin: 0 0 0.75rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--rule-soft);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
}
.section-eyebrow .aside {
  font-style: italic;
  font-variation-settings: "opsz" 144, "wght" 400;
  text-transform: none;
  letter-spacing: 0;
  color: var(--ink-faint);
}

/* dispatch list — newspaper item style */

.dispatch {
  display: grid;
  grid-template-columns: 9rem 1fr;
  gap: clamp(1rem, 2.5vw, 2rem);
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--rule-soft);
  text-decoration: none;
  color: inherit;
  transition: background 200ms ease;
}
.dispatch:hover { background: linear-gradient(90deg, transparent, oklch(94% 0.030 80) 30%, transparent); }
.dispatch:hover .dispatch__title { color: var(--oxblood); }
.dispatch__date {
  font-family: "Fraunces", serif;
  font-variation-settings: "opsz" 14, "wght" 500;
  font-size: var(--t-sm);
  letter-spacing: 0.02em;
  color: var(--ink-soft);
  font-feature-settings: "tnum" 1, "lnum" 1;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}
.dispatch__date .day {
  font-family: "Fraunces", serif;
  font-variation-settings: "opsz" 144, "wght" 320, "SOFT" 50;
  font-size: var(--t-md);
  line-height: 1;
  color: var(--ink);
  letter-spacing: -0.02em;
}
.dispatch__date .ago {
  font-style: italic;
  font-variation-settings: "opsz" 144, "wght" 380;
  color: var(--ink-faint);
  font-size: var(--t-xs);
}
.dispatch__title {
  font-family: "Fraunces", serif;
  font-variation-settings: "opsz" 144, "wght" 460, "SOFT" 30;
  font-size: var(--t-md);
  line-height: 1.2;
  letter-spacing: -0.018em;
  color: var(--ink);
  transition: color 180ms ease;
}
.dispatch__cats {
  margin-top: 0.4rem;
  font-family: "Fraunces", serif;
  font-style: italic;
  font-variation-settings: "opsz" 144, "wght" 380;
  font-size: var(--t-sm);
  color: var(--ink-faint);
}
.dispatch--links .dispatch__title { font-style: italic; color: var(--ink-soft); }

/* ── archive: year as chapter ──────────────────────────────── */

.chapter { padding: clamp(2.5rem, 5vw, 4rem) 0 1rem; border-top: 1px solid var(--rule); }
.chapter:first-of-type { border-top: 0; padding-top: 0; }
.chapter__head {
  display: grid;
  grid-template-columns: max-content 1fr;
  align-items: end;
  gap: clamp(1rem, 3vw, 2rem);
  margin-bottom: 2rem;
}
.chapter__year {
  font-family: "Fraunces", serif;
  font-variation-settings: "opsz" 144, "wght" 280, "SOFT" 100, "WONK" 1;
  font-size: var(--t-mega);
  line-height: 0.82;
  letter-spacing: -0.06em;
  color: var(--ink);
  font-feature-settings: "lnum" 1;
}
.chapter__meta {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding-bottom: 0.8rem;
}
.chapter__count {
  font-family: "Fraunces", serif;
  font-variation-settings: "opsz" 144, "wght" 400;
  font-style: italic;
  font-size: var(--t-md);
  color: var(--ink-soft);
}
.chapter__density {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 3px;
  height: 28px;
  align-items: end;
}
.density-bar {
  background: var(--ink);
  opacity: 0.8;
  min-height: 2px;
  border-radius: 1px 1px 0 0;
}
.density-bar[data-month-count="0"] { background: var(--rule); opacity: 0.6; }
.chapter__months {
  font-family: "Fraunces", serif;
  font-variation-settings: "opsz" 14, "wght" 500;
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-faint);
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 3px;
  margin-top: 4px;
  text-align: center;
}

/* ── single post ───────────────────────────────────────────── */

.post {
  display: grid;
  grid-template-columns: max-content minmax(0, 1fr);
  column-gap: clamp(1.5rem, 4vw, 3rem);
  row-gap: 0;
  align-items: start;
}

.post__date {
  grid-column: 1;
  padding-top: clamp(0.5rem, 2vw, 1rem);
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  font-family: "Fraunces", serif;
}
.post__titleblock {
  grid-column: 2;
  padding-top: clamp(0.5rem, 2vw, 1rem);
}
.post__rule {
  grid-column: 1 / -1;
  border: 0;
  border-top: 1px solid var(--rule);
  margin: clamp(1.25rem, 3vw, 2.25rem) 0;
  width: 100%;
}
.post__day {
  font-variation-settings: "opsz" 144, "wght" 280, "SOFT" 100, "WONK" 1;
  font-size: var(--t-2xl);
  line-height: 0.85;
  letter-spacing: -0.05em;
  font-feature-settings: "lnum" 1;
}
.post__monthyear {
  font-variation-settings: "opsz" 14, "wght" 600;
  font-size: var(--t-sm);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--ink-soft);
  margin-top: 0.4rem;
}
.post__ago {
  font-style: italic;
  font-variation-settings: "opsz" 144, "wght" 400;
  font-size: var(--t-sm);
  color: var(--oxblood);
  margin-top: 0.3rem;
}

.post__title {
  font-family: "Fraunces", serif;
  font-variation-settings: "opsz" 144, "wght" 380, "SOFT" 30, "WONK" 1;
  font-size: var(--t-xl);
  line-height: 1.02;
  letter-spacing: -0.03em;
  margin: 0;
  align-self: start;
}
.post__title em {
  font-style: italic;
  font-variation-settings: "opsz" 144, "wght" 380, "SOFT" 100, "WONK" 1;
  color: var(--oxblood);
}

.post__cats {
  font-family: "Fraunces", serif;
  font-style: italic;
  font-variation-settings: "opsz" 144, "wght" 400;
  font-size: var(--t-sm);
  color: var(--ink-faint);
  margin-top: 0.6rem;
}

.post__body {
  grid-column: 2;
  max-width: var(--measure);
  font-size: var(--t-base);
  line-height: 1.65;
  color: var(--ink);
}
.post__body p { margin: 1.1em 0; }
.post__body p:first-child { margin-top: 0; }
.post__body p:first-child::first-line {
  font-variation-settings: "opsz" 144, "wght" 500;
  letter-spacing: 0.01em;
}

.post__body a { color: var(--oxblood); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; text-decoration-color: var(--oxblood-soft); }
.post__body a:hover { text-decoration-color: var(--oxblood); }
.post__body img { max-width: 100%; height: auto; border-radius: 2px; }
.post__body blockquote {
  margin: 1.6em 0;
  padding: 0.2em 1.2em;
  border-left: 2px solid var(--oxblood-soft);
  font-style: italic;
  font-family: "Fraunces", serif;
  font-variation-settings: "opsz" 144, "wght" 380;
  color: var(--ink-soft);
}
.post__body h1, .post__body h2, .post__body h3 {
  font-family: "Fraunces", serif;
  font-variation-settings: "opsz" 144, "wght" 500, "SOFT" 30;
  letter-spacing: -0.02em;
  margin: 1.6em 0 0.4em;
  line-height: 1.15;
}
.post__body code { font-family: ui-monospace, "SF Mono", Menlo, monospace; font-size: 0.9em; background: var(--paper-deep); padding: 0.1em 0.35em; border-radius: 2px; }
.post__body pre { padding: 1rem 1.2rem; background: var(--paper-deep); border-radius: 3px; overflow-x: auto; font-size: 0.9em; }
.post__body pre code { background: transparent; padding: 0; }
.post__body hr { border: 0; border-top: 1px solid var(--rule); margin: 2.5em 0; }
.post__body ul, .post__body ol { padding-left: 1.4em; }
.post__body li { margin: 0.4em 0; }

/* time-aware nav */

.timenav {
  grid-column: 1 / -1;
  margin-top: 4rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--rule);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(1rem, 3vw, 2rem);
}
.timenav__link {
  text-decoration: none;
  color: var(--ink);
  display: grid;
  gap: 0.4rem;
  padding: 0.5rem 0;
  border-top: 1px solid transparent;
  transition: border-color 200ms ease;
}
.timenav__link--later { text-align: right; }
.timenav__link:hover { border-top-color: var(--oxblood-soft); }
.timenav__link:hover .timenav__title { color: var(--oxblood); }
.timenav__label {
  font-family: "Fraunces", serif;
  font-variation-settings: "opsz" 14, "wght" 600;
  font-style: italic;
  font-size: var(--t-sm);
  letter-spacing: 0.06em;
  color: var(--ink-faint);
  text-transform: uppercase;
}
.timenav__gap {
  font-family: "Fraunces", serif;
  font-style: italic;
  font-variation-settings: "opsz" 144, "wght" 400;
  font-size: var(--t-sm);
  color: var(--ink-soft);
}
.timenav__title {
  font-family: "Fraunces", serif;
  font-variation-settings: "opsz" 144, "wght" 460, "SOFT" 30;
  font-size: var(--t-md);
  letter-spacing: -0.02em;
  line-height: 1.2;
  transition: color 180ms ease;
}

/* ── reveal-on-load (one-time, restrained) ─────────────────── */

@media (prefers-reduced-motion: no-preference) {
  .reveal { opacity: 0; transform: translateY(8px); animation: rise 700ms cubic-bezier(0.22, 1, 0.36, 1) forwards; }
  .reveal:nth-child(1) { animation-delay: 30ms; }
  .reveal:nth-child(2) { animation-delay: 90ms; }
  .reveal:nth-child(3) { animation-delay: 150ms; }
  .reveal:nth-child(4) { animation-delay: 210ms; }
  .reveal:nth-child(5) { animation-delay: 270ms; }
  .reveal:nth-child(n+6) { animation-delay: 320ms; }
  @keyframes rise {
    to { opacity: 1; transform: none; }
  }
}

/* ── responsive ────────────────────────────────────────────── */

@media (max-width: 720px) {
  .spine { grid-template-columns: 1fr; }
  .spine__years {
    position: static;
    flex-direction: row;
    overflow-x: auto;
    border-right: 0;
    border-bottom: 1px solid var(--rule);
    padding-right: 0;
    padding-bottom: 1rem;
    gap: 1.5rem;
    scroll-snap-type: x mandatory;
  }
  .spine__year { text-align: left; min-width: 5rem; scroll-snap-align: start; }
  .spine__year .bar { margin-left: 0; }

  .dispatch { grid-template-columns: 1fr; gap: 0.4rem; }
  .dispatch__date { flex-direction: row; align-items: baseline; gap: 0.6rem; }

  .chapter__head { grid-template-columns: 1fr; align-items: start; }
  .post { grid-template-columns: 1fr; }
  .post__date, .post__titleblock, .post__body { grid-column: 1; }
  .post__date { padding-top: 0; }
  .timenav { grid-template-columns: 1fr; }
  .timenav__link--later { text-align: left; }
  .masthead { grid-template-columns: 1fr; gap: 0.4rem; }
}