/* =========================================================
   Joe Rodriguez — personal site
   Shared styles
   ========================================================= */

/* --- Themes ----------------------------------------------- */
:root,
body.theme-rust {
  --paper: #f6f3ea;
  --paper-2: #ede9d9;
  --paper-3: #e3dec8;
  --ink: #1a1a1a;
  --ink-2: #2b2926;
  --muted: #76705f;
  --muted-2: #a39c89;
  --rule: rgba(26,26,26,0.12);
  --accent: #2f6b48;
  --accent-soft: rgba(47,107,72,0.10);
  --shadow: 0 1px 0 rgba(26,26,26,0.04), 0 12px 32px -16px rgba(26,26,26,0.18);
}

body.theme-indigo {
  --paper: #faf8f3;
  --paper-2: #efeee8;
  --paper-3: #e5e3da;
  --ink: #161821;
  --ink-2: #262936;
  --muted: #6a6e7c;
  --muted-2: #a3a7b3;
  --rule: rgba(22,24,33,0.12);
  --accent: #2741b3;
  --accent-soft: rgba(39,65,179,0.10);
}

body.theme-forest {
  --paper: #f4f2e8;
  --paper-2: #e9e6d3;
  --paper-3: #ddd9c0;
  --ink: #14191a;
  --ink-2: #232826;
  --muted: #6b6f5e;
  --muted-2: #9c9f8a;
  --rule: rgba(20,25,26,0.12);
  --accent: #2f6b48;
  --accent-soft: rgba(47,107,72,0.10);
}

/* --- Reset / base ----------------------------------------- */
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--paper);
  color: var(--ink);
  font-family: "DM Sans", system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  font-feature-settings: "ss01" on, "cv11" on;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
p { margin: 0 0 1em; text-wrap: pretty; }
hr { border: none; border-top: 1px solid var(--rule); margin: 2.5rem 0; }
button { font: inherit; }
[hidden] { display: none !important; }

/* --- Type families ---------------------------------------- */
.serif, h1, h2, h3, .display {
  font-family: "Source Serif 4", "Source Serif Pro", Georgia, serif;
  font-weight: 400;
  letter-spacing: -0.01em;
}
.mono, .label {
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, monospace;
  font-feature-settings: "ss05" on;
}
.label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--muted);
}
.label--ink { color: var(--ink); }
.label--accent { color: var(--accent); }

/* --- Layout ----------------------------------------------- */
.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 32px;
}
.container--narrow { max-width: 880px; }
.container--wide   { max-width: 1280px; }

.section { padding: 64px 0; }
.section--tight { padding: 40px 0; }
.section--hero  { padding: 80px 0 56px; }

/* --- Top nav ---------------------------------------------- */
.topnav {
  position: sticky; top: 0; z-index: 30;
  background: color-mix(in oklab, var(--paper) 88%, transparent);
  backdrop-filter: saturate(160%) blur(8px);
  -webkit-backdrop-filter: saturate(160%) blur(8px);
  border-bottom: 1px solid var(--rule);
}
.topnav__inner {
  display: flex; align-items: center; gap: 28px;
  padding: 14px 32px;
  max-width: 1280px; margin: 0 auto;
}
.topnav__brand {
  font-family: "Source Serif 4", Georgia, serif;
  font-size: 18px; line-height: 1;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.topnav__brand small {
  display: block;
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  color: var(--muted);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-top: 4px;
}
.topnav__links {
  margin-left: auto;
  display: flex; align-items: center; gap: 24px;
}
.topnav__link {
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--muted);
  padding: 8px 0;
  border-bottom: 1.5px solid transparent;
  transition: color .15s ease, border-color .15s ease;
}
.topnav__link:hover { color: var(--ink); }
.topnav__link.is-active {
  color: var(--ink);
  border-bottom-color: var(--accent);
}
.topnav__cv {
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.06em;
  padding: 8px 14px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  color: var(--ink);
  transition: background .15s, color .15s;
}
.topnav__cv:hover { background: var(--ink); color: var(--paper); }

/* --- Hero ------------------------------------------------- */
.hero { display: grid; grid-template-columns: 1fr auto; gap: 32px; align-items: start; }
.hero__eyebrow {
  display: flex; align-items: center; gap: 10px;
  margin-bottom: 18px;
}
.hero__eyebrow .dot {
  width: 8px; height: 8px; border-radius: 999px; background: var(--accent);
  display: inline-block;
}
.hero h1 {
  font-size: clamp(48px, 7vw, 96px);
  line-height: 0.98;
  margin: 0;
  letter-spacing: -0.025em;
  font-weight: 400;
}
.hero h1 em {
  font-style: italic;
  font-family: "Source Serif 4", Georgia, serif;
  color: var(--accent);
}
.hero__lede {
  margin-top: 28px;
  font-size: clamp(18px, 1.5vw, 22px);
  line-height: 1.5;
  max-width: 680px;
  color: var(--ink-2);
}
.hero__lede em {
  font-style: normal;
  color: var(--accent);
  font-weight: 500;
}

.hero__photo {
  width: 120px; height: 120px;
  border-radius: 50%;
  background:
    repeating-linear-gradient(45deg, transparent 0 8px, rgba(26,26,26,0.10) 8px 9px),
    var(--paper-2);
  border: 1px solid var(--rule);
  position: relative;
  flex: none;
}
.hero__photo::after {
  content: "headshot";
  position: absolute; inset: 0;
  display: grid; place-items: center;
  font-family: "JetBrains Mono", monospace;
  font-size: 10px; color: var(--muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.hero__photo.has-img { background: none; border: 1px solid var(--rule); overflow: hidden; }
.hero__photo.has-img::after { display: none; }

/* --- Cards ------------------------------------------------ */
.card {
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: 14px;
  padding: 24px 26px;
  position: relative;
  display: flex; flex-direction: column;
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}
.card--bare { border: none; padding: 0; background: transparent; }
.card--tint { background: var(--paper-2); }
.card--accent { border-color: color-mix(in srgb, var(--accent) 35%, transparent); }
.home-card-grid { grid-auto-rows: 1fr; align-items: stretch; }
.home-card { height: 600px; }
.card[href]:hover {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--accent) 45%, var(--rule));
  box-shadow: var(--shadow);
}

.card__eyebrow {
  font-family: "JetBrains Mono", monospace;
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--muted);
  display: flex; align-items: center; gap: 10px;
  margin-bottom: 14px;
}
.card__eyebrow .dot {
  width: 6px; height: 6px; border-radius: 999px;
  background: var(--accent);
}
.card__title {
  font-family: "Source Serif 4", Georgia, serif;
  font-size: 26px; line-height: 1.15;
  letter-spacing: -0.012em;
  margin: 0 0 6px;
  color: var(--ink);
}
.card__title--lg { font-size: 32px; }
.card__sub {
  font-size: 14px;
  line-height: 1.5;
  color: var(--muted);
  margin-bottom: 14px;
}
.card__body { font-size: 15px; line-height: 1.55; color: var(--ink-2); }
.card__cta {
  margin-top: auto; padding-top: 16px;
  font-family: "JetBrains Mono", monospace;
  font-size: 11px; letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--accent);
  display: inline-flex; align-items: center; gap: 8px;
}
.card__cta::after { content: "→"; transition: transform .18s ease; }
.card[href]:hover .card__cta::after { transform: translateX(3px); }

/* --- Grids ------------------------------------------------ */
.grid {
  display: grid;
  gap: 18px;
}
.grid--2 { grid-template-columns: 1fr 1fr; }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }
.grid--asym { grid-template-columns: 1.6fr 1fr; }

/* --- Section title --------------------------------------- */
.s-head {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 24px;
  margin-bottom: 24px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--rule);
}
.s-head h2 {
  font-family: "Source Serif 4", Georgia, serif;
  font-weight: 400;
  font-size: clamp(28px, 3vw, 36px);
  letter-spacing: -0.015em;
  margin: 0;
}
.s-head .label { flex: none; }

/* --- Publication list ------------------------------------- */
.publist {
  display: flex; flex-direction: column;
}
.pub {
  display: grid;
  grid-template-columns: 56px 64px 1fr 220px 60px 80px;
  gap: 18px;
  align-items: center;
  padding: 22px 8px;
  border-bottom: 1px solid var(--rule);
  color: var(--ink);
  transition: background .18s ease;
}
.pub:hover { background: color-mix(in srgb, var(--accent) 6%, transparent); }
.pub:hover .pub__title { color: var(--accent); }
.pub__num { font-family: "JetBrains Mono", monospace; font-size: 11px; color: var(--muted-2); letter-spacing: 0.06em; }
.pub__year { font-family: "JetBrains Mono", monospace; font-size: 12px; color: var(--muted); }
.pub__title {
  font-family: "Source Serif 4", Georgia, serif;
  font-size: 19px;
  line-height: 1.3;
  letter-spacing: -0.01em;
  transition: color .15s;
}
.pub__authors {
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  color: var(--muted);
  margin-top: 4px;
  letter-spacing: 0.02em;
}
.pub__venue {
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
}
.pub__rank {
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  text-align: center;
  color: var(--accent);
}
.pub__rank.is-na { color: var(--muted-2); }
.pub__link {
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-align: right;
  color: var(--ink);
}
.pub__link::after { content: " →"; color: var(--accent); }
.pub--wp .pub__venue { font-style: normal; }

.publist__divider {
  font-family: "JetBrains Mono", monospace;
  font-size: 10.5px;
  letter-spacing: 0.18em;
  color: var(--muted);
  text-transform: uppercase;
  padding: 32px 8px 10px;
  border-bottom: 1px solid var(--rule);
}

/* Theme switch for publication list filter chips */
.filter-row {
  display: flex; gap: 6px; align-items: center; flex-wrap: wrap;
  margin: 8px 0 18px;
}
.chip {
  font-family: "JetBrains Mono", monospace;
  font-size: 11px; letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 6px 12px;
  border: 1px solid var(--rule);
  border-radius: 999px;
  color: var(--muted);
  cursor: pointer;
  transition: all .15s;
}
.chip.is-on { color: var(--paper); background: var(--ink); border-color: var(--ink); }
.chip:hover { color: var(--ink); border-color: var(--ink); }
.chip.is-on:hover { color: var(--paper); }

/* --- Paper page ------------------------------------------- */
.paper-head { display: grid; grid-template-columns: 1fr 320px; gap: 56px; align-items: start; }
.paper-head__venue {
  display: flex; gap: 14px; align-items: baseline; flex-wrap: wrap;
  font-family: "JetBrains Mono", monospace;
  font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--accent);
}
.paper-head__venue .sep { color: var(--muted-2); }
.paper-head h1 {
  font-family: "Source Serif 4", Georgia, serif;
  font-size: clamp(36px, 4vw, 56px);
  line-height: 1.05; letter-spacing: -0.02em;
  font-weight: 400;
  margin: 14px 0 0;
}
.paper-head__authors {
  margin-top: 16px;
  font-size: 15px;
  color: var(--muted);
  font-family: "JetBrains Mono", monospace;
  letter-spacing: 0.02em;
}
.paper-doi {
  margin-top: 20px;
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--muted);
}
.paper-doi a {
  color: var(--ink);
  border-bottom: 1px solid var(--rule);
}
.paper-doi a:hover { color: var(--accent); border-color: var(--accent); }
.paper-actions {
  display: flex; gap: 10px; flex-wrap: wrap;
  margin-top: 28px;
}
.btn {
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 9px 16px;
  border-radius: 999px;
  border: 1px solid var(--ink);
  color: var(--ink);
  background: transparent;
  cursor: pointer;
  transition: all .15s;
}
.btn:hover { background: var(--ink); color: var(--paper); }
.btn--accent { border-color: var(--accent); color: var(--accent); }
.btn--accent:hover { background: var(--accent); color: var(--paper); }
.btn--ghost { border-color: var(--rule); color: var(--muted); }

.sidecar {
  border: 1px solid var(--rule);
  border-radius: 12px;
  padding: 22px;
  background: var(--paper-2);
  font-size: 14px;
}
.sidecar__row {
  display: flex; justify-content: space-between; align-items: baseline; gap: 16px;
  padding: 8px 0;
  border-bottom: 1px dashed var(--rule);
}
.sidecar__row:last-of-type { border-bottom: none; }
.sidecar__row .k {
  font-family: "JetBrains Mono", monospace;
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
}
.sidecar__row .v {
  font-family: "Source Serif 4", Georgia, serif;
  font-size: 17px;
  color: var(--ink);
  min-width: 0;
  max-width: 72%;
  text-align: right;
  overflow-wrap: anywhere;
}
.sidecar h4 {
  font-family: "JetBrains Mono", monospace;
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--muted);
  margin: 18px 0 8px;
}
.sidecar a { display: block; padding: 6px 0; font-size: 14px; color: var(--ink); border-bottom: 1px dashed transparent; }
.sidecar a:hover { color: var(--accent); }
.sidecar__item {
  display: block;
  padding: 6px 0;
  font-size: 14px;
  color: var(--ink);
}

.abstract {
  margin-top: 40px;
  max-width: 780px;
  font-family: "Source Serif 4", Georgia, serif;
  font-size: 19px;
  line-height: 1.55;
  color: var(--ink-2);
}
.abstract h3 {
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--muted);
  font-weight: 400;
  margin: 0 0 14px;
}
.abstract em {
  font-style: normal;
  color: var(--accent);
}

.paper-contrib {
  max-width: 860px;
}
.paper-contrib .grid {
  gap: 28px;
}
.contrib__title {
  margin: 8px 0 6px;
  font-family: "Source Serif 4", Georgia, serif;
  font-size: 21px;
  line-height: 1.25;
  color: var(--ink);
}
.contrib__body {
  margin-top: 8px;
  font-family: "Source Serif 4", Georgia, serif;
  font-size: 17px;
  line-height: 1.5;
  color: var(--ink-2);
}

/* --- Footer ----------------------------------------------- */
.footer {
  margin-top: 96px;
  padding: 40px 0 56px;
  border-top: 1px solid var(--rule);
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.04em;
}
.footer__inner { display: flex; gap: 32px; flex-wrap: wrap; align-items: baseline; }
.footer a { color: var(--ink); border-bottom: 1px solid var(--rule); }
.footer a:hover { color: var(--accent); border-color: var(--accent); }

/* --- Util ------------------------------------------------- */
.row { display: flex; }
.col { display: flex; flex-direction: column; }
.gap-xs { gap: 6px; } .gap-s { gap: 12px; } .gap-m { gap: 18px; } .gap-l { gap: 28px; }
.muted { color: var(--muted); }
.accent { color: var(--accent); }
.center { display: grid; place-items: center; }
.grow { flex: 1; }
.divider { height: 1px; background: var(--rule); width: 100%; margin: 24px 0; }
.divider--thick { background: var(--ink); height: 2px; }
.tabular-num { font-variant-numeric: tabular-nums; }

/* --- Responsive ------------------------------------------- */
@media (max-width: 900px) {
  .grid--2, .grid--3, .grid--4, .grid--asym { grid-template-columns: 1fr; }
  .home-card-grid { grid-auto-rows: auto; }
  .home-card { height: auto; }
  .hero { grid-template-columns: 1fr; }
  .paper-head { grid-template-columns: 1fr; }
  .pub {
    grid-template-columns: 44px 1fr 70px;
    grid-template-areas: "num title link" "num authors link" "num venue link";
    row-gap: 4px;
  }
  .pub__num { grid-area: num; }
  .pub__year { display: none; }
  .pub__title { grid-area: title; }
  .pub__authors { grid-area: authors; }
  .pub__venue { grid-area: venue; }
  .pub__rank { display: none; }
  .pub__link { grid-area: link; }
  .topnav__links { display: none; }
}