/* ============================================================
   FIT B DESIGN SYSTEM · layered over styles.css
   The instrument language: cream paper, warm ink, hairlines,
   mono labels, tabular numerals, one brown accent.
   Loads after styles.css and wins the cascade.
   ============================================================ */

:root {
  --paper: #fbfaf6;
  --paper-2: #f3ead8;
  --ink: #1a1917;
  --ink-soft: #4a443c;
  --brown: #8a5a3b;
  --gold: #b8863b;

  /* flip the site accent from blue to brown */
  --background: var(--paper);
  --text: var(--ink);
  --reading: #3a342c;
  --muted: #6f6a62;
  --faint: #8a8377;
  --line: rgba(26, 25, 23, 0.14);
  --hairline: rgba(26, 25, 23, 0.08);
  --accent: var(--brown);
  --focus: #8a5a3b;
  --topbar-height: 44px;

  color-scheme: light;
}

/* clip, not hidden: overflow-x hidden on ancestors breaks position sticky */
html, body {
  overflow-x: clip;
  background: var(--paper);
}

/* ---------- grain ---------- */

.grain {
  position: fixed;
  inset: -50%;
  width: 200%;
  height: 200%;
  z-index: 60;
  pointer-events: none;
  opacity: 0.045;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)'/%3E%3C/svg%3E");
}

@media (max-width: 640px) {
  :root { --topbar-height: 78px; }
}

/* ---------- accessibility ---------- */

.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0 0 0 0) !important;
  clip-path: inset(50%) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.skip-link {
  position: fixed;
  top: 10px;
  left: var(--gutter, max(5vw, 20px));
  z-index: 80;
  padding: 8px 12px;
  background: var(--paper);
  border: 1px solid var(--brown);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-decoration: none;
  transform: translateY(calc(-100% - 16px));
}

.skip-link:focus-visible {
  transform: none;
}

/* ---------- topbar chrome ---------- */

.site-topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1.5rem;
  padding: 12px var(--gutter, max(5vw, 20px));
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  border-bottom: 1px solid var(--hairline);
  backdrop-filter: blur(2px);
  min-height: var(--topbar-height);
}
.site-topbar .wordmark {
  font-weight: 600;
  text-decoration: none;
  color: var(--ink);
}
.site-topbar nav {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(14px, 2.6vw, 30px);
}
.site-topbar nav a {
  color: var(--muted);
  text-decoration: none;
  position: relative;
  padding: 5px 0;
  transition: color 150ms ease;
}
.site-topbar nav a:hover { color: var(--ink); }
.site-topbar nav a[aria-current="page"] { color: var(--brown); }
.site-topbar nav a[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 1px;
  background: var(--brown);
}

/* push page content below the fixed bar */
body > .page-shell,
body > main { padding-top: calc(var(--topbar-height) + 16px); }

/* ---------- footer restyle ---------- */

.site-footer {
  border-top: 1px solid var(--hairline);
  margin-top: 14vh;
  padding-top: 24px !important;
}
.site-footer .site-footer-nav {
  display: flex !important;
  flex-wrap: wrap;
  gap: 12px 28px;
}
.site-footer a {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--muted);
  text-decoration: none;
}
.site-footer a:hover { color: var(--brown); }
.site-footer .site-footer-identity p,
.site-footer .site-footer-colophon p {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  color: var(--muted);
  line-height: 1.9;
}

/* ---------- type overrides for journal classes ---------- */

.journal-kicker,
.section-label {
  font-family: var(--mono) !important;
  font-size: 11px !important;
  letter-spacing: 0.22em !important;
  text-transform: uppercase;
  color: var(--brown) !important;
}

.card-meta {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

/* ============================================================
   INSTRUMENT COMPONENTS
   ============================================================ */

.instrument {
  position: relative;
  height: 360vh;
  /* full bleed out of any constrained shell */
  width: 100vw;
  margin-left: calc(50% - 50vw);
}
.instrument .sticky-view {
  position: sticky;
  top: var(--topbar-height);
  height: calc(100vh - var(--topbar-height));
  overflow: hidden;
}

.year-readout {
  position: absolute;
  right: var(--gutter, max(5vw, 20px));
  top: 9vh;
  font-family: var(--serif);
  font-size: clamp(3.6rem, 10vw, 8.4rem);
  line-height: 1;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
  user-select: none;
}
.year-readout .decade { color: var(--hairline); }

.axis-wrap {
  position: absolute;
  left: var(--gutter, max(5vw, 20px));
  right: var(--gutter, max(5vw, 20px));
  top: 58%;
}
.axis { position: relative; height: 1px; background: var(--line); }
.axis .ytick { position: absolute; top: -4px; width: 1px; height: 9px; background: var(--hairline); }
.axis .ylabel {
  position: absolute;
  top: 14px;
  transform: translateX(-50%);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  color: var(--muted);
  user-select: none;
}
.axis .ylabel.is-first { transform: translateX(0); }
.axis .ylabel.is-last { transform: translateX(-100%); }
.axis .station-tick {
  position: absolute;
  top: -7px;
  width: 1px;
  height: 15px;
  background: var(--ink);
  opacity: 0.35;
  transition: opacity 0.3s, background 0.3s;
}
.axis .station-tick.active { opacity: 1; background: var(--brown); }

.era-bar { position: relative; margin-top: 34px; height: 3px; }
.era-bar .seg { position: absolute; top: 0; height: 100%; background: var(--hairline); overflow: hidden; }
.era-bar .seg i {
  position: absolute;
  inset: 0;
  background: var(--brown);
  transform-origin: left;
  transform: scaleX(0);
}

.playhead {
  position: absolute;
  top: -26px;
  width: 1px;
  height: 52px;
  background: var(--brown);
  will-change: transform;
}
.playhead::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: -2.5px;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--brown);
}

.station-card {
  position: absolute;
  left: var(--gutter, max(5vw, 20px));
  top: 13vh;
  width: min(560px, 84vw);
  min-height: 42vh;
}
.station-card .card {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.45s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.45s cubic-bezier(0.16, 1, 0.3, 1);
  pointer-events: none;
}
.station-card .card.active {
  opacity: 1;
  transform: none;
  pointer-events: auto;
  transition-delay: 0.08s;
}
.station-card .card .org {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--brown);
  margin-bottom: 14px;
}
.station-card .card h2 {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.01em;
  max-width: 18ch;
  margin: 0;
}
.station-card .card .period {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--muted);
  margin-top: 10px;
  font-variant-numeric: tabular-nums;
}
.station-card .card p {
  margin-top: 16px;
  color: var(--ink-soft);
  max-width: 46ch;
}
.station-card .card .highlight {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--hairline);
  font-style: italic;
  color: var(--brown);
  max-width: 44ch;
}
.station-card .card .more {
  display: inline-block;
  margin-top: 16px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--brown);
  text-decoration: none;
  border-bottom: 1px solid rgba(138, 90, 59, 0.4);
  padding-bottom: 2px;
}

.instrument .instruction {
  position: absolute;
  left: var(--gutter, max(5vw, 20px));
  bottom: 5vh;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--muted);
}

@media (max-width: 640px) {
  .station-card {
    width: calc(100vw - (2 * var(--gutter, 20px)));
  }
  .station-card .card .org { margin-bottom: 8px; }
  .station-card .card h2 { font-size: 1.45rem; }
  .station-card .card .period { margin-top: 8px; }
  .station-card .card p {
    margin-top: 12px;
    font-size: 0.95rem;
    line-height: 1.5;
  }
  .station-card .card .highlight {
    margin-top: 10px;
    padding-top: 10px;
  }
  .station-card .card .more { margin-top: 12px; }
  .axis-wrap {
    top: auto;
    bottom: 15vh;
  }
  .axis .ylabel { display: none; }
  .axis .ylabel[data-year="2012"],
  .axis .ylabel[data-year="2016"],
  .axis .ylabel[data-year="2020"],
  .axis .ylabel[data-year="2024"],
  .axis .ylabel[data-year="2026"] {
    display: block;
  }
  .instrument .instruction {
    right: var(--gutter, max(5vw, 20px));
    bottom: 2vh;
    line-height: 1.45;
  }
}

/* ---------- static record rows ---------- */

.record {
  padding: clamp(4rem, 9vh, 7rem) 0 4vh;
  scroll-margin-top: calc(var(--topbar-height) + 1.5rem);
}
.record .kicker {
  display: block;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--brown);
  margin-bottom: 28px;
}
.record .row {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 20px;
  padding: 24px 0;
  border-top: 1px solid var(--hairline);
}
@media (max-width: 640px) { .record .row { grid-template-columns: 1fr; gap: 6px; } }
.record .when {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--muted);
  padding-top: 6px;
  font-variant-numeric: tabular-nums;
}
.record h3 { font-size: 1.3rem; font-weight: 500; line-height: 1.3; margin: 0; }
.record h3 span { color: var(--muted); font-weight: 400; }
.record p { margin-top: 8px; color: var(--ink-soft); max-width: 58ch; }
.record .hl { font-style: italic; color: var(--brown); margin-top: 10px; }
.record .more {
  display: inline-block;
  margin-top: 12px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--brown);
  text-decoration: none;
  border-bottom: 1px solid rgba(138, 90, 59, 0.4);
}

/* ---------- home mini-axis ---------- */

.mini-axis {
  padding: clamp(3.5rem, 9vh, 6rem) 0 0;
  padding-bottom: 6rem;
}
.mini-axis .head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 40px;
}
.mini-axis .head .axis-link {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--brown);
  text-decoration: none;
  border-bottom: 1px solid rgba(138, 90, 59, 0.4);
  padding-bottom: 2px;
}
.mini-axis .track { position: relative; height: 1px; background: var(--line); margin: 44px 6px 0; }
.mini-axis .st {
  position: absolute;
  transform: translateX(-50%);
  text-decoration: none;
  text-align: center;
  width: 92px;
}
.mini-axis .st i {
  display: block;
  width: 1px;
  height: 16px;
  background: var(--ink);
  opacity: 0.4;
  margin: -17px auto 0;
  transition: opacity 0.25s, background 0.25s;
}
.mini-axis .st .o {
  display: block;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  color: var(--muted);
  margin-top: 12px;
  line-height: 1.6;
}
.mini-axis .st:nth-child(even) .o { margin-top: 42px; }
.mini-axis .st:hover i { opacity: 1; background: var(--brown); }
.mini-axis .st:hover .o { color: var(--brown); }

@media (max-width: 640px) {
  .mini-axis {
    padding-bottom: 5rem;
  }
  .mini-axis .head {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 48px;
  }
  .mini-axis .track {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px 18px;
    height: auto;
    margin: 0;
    padding-top: 18px;
    background: linear-gradient(var(--line), var(--line)) top / 100% 1px no-repeat;
  }
  .mini-axis .st {
    position: relative;
    left: auto !important;
    display: grid;
    grid-template-columns: 1px minmax(0, 1fr);
    gap: 8px;
    width: auto;
    min-width: 0;
    text-align: left;
    transform: none;
  }
  .mini-axis .st:last-child {
    grid-column: 1 / -1;
  }
  .mini-axis .st i {
    width: 1px;
    height: 100%;
    min-height: 2.2rem;
    margin: 0;
  }
  .mini-axis .st .o {
    font-size: 9.5px;
    letter-spacing: 0.07em;
    margin-top: 0;
  }
  .mini-axis .st:nth-child(even) .o {
    margin-top: 0;
  }
}

/* ---------- writing archive: year rail ---------- */

.archive {
  max-width: 66rem;
  margin: 0 auto;
  padding: 10vh 0 4vh;
  display: grid;
  grid-template-columns: minmax(130px, 180px) 1fr;
  gap: clamp(24px, 5vw, 80px);
  align-items: start;
}
.year-rail { position: sticky; top: calc(var(--topbar-height) + 66px); }
.year-rail .big {
  font-size: clamp(2.6rem, 5vw, 4.4rem);
  line-height: 1;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.year-rail .ticks { margin-top: 16px; }
.year-rail .ticks .t {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 5px 0;
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.14em;
  color: var(--muted);
}
.year-rail .ticks .t i {
  display: block;
  width: 14px;
  height: 1px;
  background: var(--hairline);
  transition: background 0.3s, width 0.3s;
}
.year-rail .ticks .t.active { color: var(--brown); }
.year-rail .ticks .t.active i { background: var(--brown); width: 24px; }

.year-block { margin-bottom: 9vh; }
.year-block .yhead {
  display: flex;
  align-items: baseline;
  gap: 16px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 10px;
  margin-bottom: 6px;
}
.year-block .yhead .y { font-size: 1.5rem; font-weight: 500; font-variant-numeric: tabular-nums; }
.year-block .yhead .c { font-family: var(--mono); font-size: 9.5px; letter-spacing: 0.16em; color: var(--muted); }
.post-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 18px;
  padding: 13px 0;
  border-bottom: 1px solid var(--hairline);
}
.post-row .t { font-size: 1.02rem; }
.post-row a.t { text-decoration: none; }
.post-row a.t:hover { color: var(--brown); text-decoration: underline; text-decoration-color: rgba(138, 90, 59, 0.4); }
.post-row .d {
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.1em;
  color: var(--muted);
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

@media (max-width: 780px) {
  .archive { grid-template-columns: 1fr; gap: 0; }
  .year-rail {
    position: sticky;
    top: var(--topbar-height);
    z-index: 5;
    display: flex;
    align-items: baseline;
    gap: 16px;
    background: color-mix(in srgb, var(--paper) 94%, transparent);
    padding: 10px 0;
    border-bottom: 1px solid var(--hairline);
  }
  .year-rail .big { font-size: 1.6rem; }
  .year-rail .ticks { display: none; }
}

/* ---------- reduced motion: instruments go static ---------- */

@media (prefers-reduced-motion: reduce) {
  .instrument { height: auto; }
  .instrument .sticky-view { position: static; height: auto; overflow: visible; padding-bottom: 6vh; }
  .year-readout, .axis-wrap, .instruction, .playhead { display: none; }
  .station-card { position: static; width: auto; min-height: 0; padding: 14vh var(--gutter, max(5vw, 20px)) 0; }
  .station-card .card { position: relative; opacity: 1; transform: none; margin-bottom: 44px; pointer-events: auto; }
  .year-rail { position: static; }
  .progress { display: none; }
}