/* Owen Pavlock — portfolio
   Palette: wintergreen with paper, ink, and a copper accent. */

:root {
  --paper: #f5f3ee;
  --paper-2: #ecebe4;
  --ink: #17201c;
  --ink-2: #3d4842;
  --muted: #6b7670;
  --rule: #d5d6cd;
  --green: #2f6b57;
  --green-deep: #1b4235;
  --green-pale: #dfe9e3;
  --copper: #a2683a;

  --serif: "Newsreader", Georgia, "Times New Roman", serif;
  --sans: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Consolas, monospace;

  --wrap: 1180px;
  --gutter: clamp(16px, 4vw, 40px);
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, video, svg { display: block; max-width: 100%; height: auto; }

a { color: inherit; text-decoration-color: color-mix(in srgb, var(--green) 45%, transparent); text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { color: var(--green); text-decoration-color: var(--green); }
a:focus-visible { outline: 2px solid var(--green); outline-offset: 3px; }

::selection { background: var(--green-pale); color: var(--green-deep); }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }

/* ---------- Type ---------- */

h1, h2, h3 { font-family: var(--serif); font-weight: 400; letter-spacing: -0.01em; margin: 0; color: var(--ink); }
h1 { font-size: clamp(2.5rem, 6.2vw, 4.75rem); line-height: 1.04; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.9rem, 3.6vw, 2.75rem); line-height: 1.1; }
h3 { font-size: 1.45rem; line-height: 1.25; }
h1 em, h2 em { font-style: italic; color: var(--green); }

p { margin: 0 0 1em; }
.lede { font-family: var(--serif); font-size: clamp(1.2rem, 2vw, 1.45rem); line-height: 1.5; color: var(--ink-2); }

.label {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.prose { max-width: 64ch; color: var(--ink-2); }
.prose strong { color: var(--ink); font-weight: 600; }

/* ---------- Header ---------- */

.site-head { border-bottom: 1px solid var(--rule); }
.site-head .wrap { display: flex; align-items: baseline; justify-content: space-between; gap: 24px; padding-top: 22px; padding-bottom: 18px; }
.wordmark { font-family: var(--serif); font-size: 1.3rem; text-decoration: none; letter-spacing: -0.01em; }
.wordmark span { color: var(--green); }
.site-nav { display: flex; gap: clamp(14px, 3vw, 32px); font-size: 0.92rem; }
.site-nav a { text-decoration: none; color: var(--ink-2); }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--green); }

/* ---------- Hero ---------- */

.hero { padding: clamp(48px, 9vw, 112px) 0 clamp(40px, 6vw, 72px); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: clamp(32px, 6vw, 80px); align-items: end; }
.hero h1 { margin: 18px 0 28px; }
.hero .lede { max-width: 34ch; }
.hero-meta { margin-top: 36px; display: grid; grid-template-columns: auto 1fr; gap: 6px 22px; font-size: 0.95rem; color: var(--ink-2); }
.hero-meta dt { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); padding-top: 3px; }
.hero-meta dd { margin: 0; }

/* ---------- Figures ---------- */

figure { margin: 0; }
figcaption { margin-top: 12px; font-size: 0.82rem; line-height: 1.5; color: var(--muted); max-width: 60ch; }
figcaption b { font-family: var(--mono); font-weight: 500; font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--green); margin-right: 8px; }
.plate { background: var(--paper-2); }
.plate img, .plate video { width: 100%; }
.plate.pad { padding: clamp(16px, 3vw, 36px); }
.plate.pad img { mix-blend-mode: multiply; margin: 0 auto; }

/* ---------- Sections ---------- */

section { padding: clamp(56px, 9vw, 120px) 0; }
.rule-top { border-top: 1px solid var(--rule); }
.sec-head { display: grid; grid-template-columns: 180px minmax(0, 1fr); gap: 24px; margin-bottom: clamp(32px, 5vw, 56px); align-items: baseline; }
.sec-head .label { padding-top: 0.6em; }

/* ---------- Work index ---------- */

.index { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--ink); }
.index li { border-bottom: 1px solid var(--rule); }
.index a, .index .row {
  display: grid;
  grid-template-columns: 56px minmax(0, 1.6fr) minmax(0, 1fr) 80px;
  gap: 20px;
  align-items: baseline;
  padding: 22px 0;
  text-decoration: none;
}
.index .n { font-family: var(--mono); font-size: 0.8rem; color: var(--copper); }
.index .t { font-family: var(--serif); font-size: clamp(1.3rem, 2.4vw, 1.75rem); line-height: 1.2; }
.index .o { font-size: 0.92rem; color: var(--ink-2); }
.index .y { font-family: var(--mono); font-size: 0.8rem; color: var(--muted); text-align: right; }
.index a .t::after { content: " \2192"; color: var(--green); opacity: 0; display: inline-block; transform: translateX(-6px); transition: opacity .2s, transform .2s; }
.index a:hover .t { color: var(--green); }
.index a:hover .t::after { opacity: 1; transform: none; }

/* ---------- Feature (end effector teaser) ---------- */

.feature-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(28px, 5vw, 64px); align-items: start; }
.feature-grid .stack { display: grid; gap: clamp(20px, 3vw, 32px); }
.feature-copy h2 { margin: 14px 0 22px; }

.figures { display: flex; flex-wrap: wrap; margin: 36px 0 32px; border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); }
.figures > div { flex: 1 1 120px; padding: 18px 20px 16px 0; }
.figures > div + div { padding-left: 20px; border-left: 1px solid var(--rule); }
.figures .v { font-family: var(--serif); font-size: clamp(1.8rem, 3vw, 2.4rem); line-height: 1; color: var(--green-deep); }
.figures .k { margin-top: 8px; font-size: 0.82rem; color: var(--muted); line-height: 1.35; }

.more { font-family: var(--mono); font-size: 0.8rem; letter-spacing: 0.08em; text-transform: uppercase; text-decoration: none; color: var(--green); border-bottom: 1px solid currentColor; padding-bottom: 3px; }
.more:hover { color: var(--green-deep); }

/* ---------- Ledger (project entries) ---------- */

.entry { display: grid; grid-template-columns: 180px minmax(0, 1fr); gap: 24px; padding: clamp(36px, 5vw, 56px) 0; border-top: 1px solid var(--rule); }
.entry:first-of-type { border-top: 1px solid var(--ink); }
.entry-meta { font-size: 0.88rem; color: var(--muted); line-height: 1.5; }
.entry-meta .label { display: block; color: var(--copper); margin-bottom: 10px; }
.entry h3 { margin-bottom: 6px; }
.entry .role { font-size: 0.95rem; color: var(--green); margin-bottom: 18px; }
.entry ul { margin: 0; padding: 0; list-style: none; max-width: 66ch; color: var(--ink-2); }
.entry li { position: relative; padding-left: 22px; margin-bottom: 10px; }
.entry li::before { content: ""; position: absolute; left: 0; top: 0.78em; width: 10px; height: 1px; background: var(--green); }
.entry-split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(24px, 4vw, 48px); align-items: start; }

/* ---------- Charts ---------- */

.chart text { font-family: var(--mono); fill: var(--muted); }
.chart .axis { stroke: var(--rule); }
.chart .line { fill: none; stroke: var(--green); stroke-width: 1.6; }
.chart .area { fill: var(--green-pale); }
.chart .bar { fill: var(--green); opacity: .78; }
.chart .bar.hi { fill: var(--green-deep); opacity: 1; }
.chart .val { fill: var(--ink); }
.chart .mark { stroke: var(--copper); stroke-dasharray: 3 3; }
.chart .mark-t { fill: var(--copper); }

/* ---------- Gallery ---------- */

.gallery { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: clamp(16px, 2.4vw, 28px); }
.gallery figure .plate { aspect-ratio: 4 / 3; overflow: hidden; display: grid; place-items: center; }
.gallery figure .plate img { width: 100%; height: 100%; object-fit: cover; }
.gallery figcaption { margin-top: 10px; }
.gallery figcaption span { display: block; color: var(--ink); font-size: 0.9rem; margin-bottom: 2px; }

/* ---------- About / skills ---------- */

.cols { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(24px, 4vw, 48px); }
.cols h3 { font-size: 1.15rem; margin-bottom: 12px; padding-bottom: 10px; border-bottom: 1px solid var(--rule); }
.cols ul { list-style: none; margin: 0; padding: 0; color: var(--ink-2); font-size: 0.95rem; }
.cols li { padding: 3px 0; }

.timeline { border-top: 1px solid var(--ink); }
.timeline > div { display: grid; grid-template-columns: 180px minmax(0, 1fr) auto; gap: 24px; padding: 20px 0; border-bottom: 1px solid var(--rule); align-items: baseline; }
.timeline .when { font-family: var(--mono); font-size: 0.8rem; color: var(--muted); }
.timeline .what { font-family: var(--serif); font-size: 1.25rem; }
.timeline .what small { display: block; font-family: var(--sans); font-size: 0.92rem; color: var(--ink-2); margin-top: 2px; }
.timeline .where { font-size: 0.88rem; color: var(--muted); text-align: right; }

/* ---------- Contact ---------- */

.contact { background: var(--green-deep); color: #e7efe9; }
.contact .label { color: #9fbcae; }
.contact h2 { color: #f5f3ee; max-width: 18ch; margin: 18px 0 36px; }
.contact h2 em { color: #a9d1bf; }
.contact-links { display: flex; flex-wrap: wrap; gap: 18px 48px; font-family: var(--serif); font-size: clamp(1.25rem, 2.4vw, 1.6rem); }
.contact-links a { color: #f5f3ee; text-decoration-color: rgba(245, 243, 238, .35); }
.contact-links a:hover { color: #a9d1bf; text-decoration-color: #a9d1bf; }

.site-foot { background: var(--green-deep); color: #9fbcae; border-top: 1px solid rgba(255,255,255,.12); font-size: 0.82rem; }
.site-foot .wrap { display: flex; justify-content: space-between; gap: 16px; padding-top: 22px; padding-bottom: 26px; flex-wrap: wrap; }

/* ---------- Case study ---------- */

.cs-hero { padding: clamp(40px, 7vw, 88px) 0 clamp(32px, 5vw, 56px); }
.crumb { font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.08em; text-transform: uppercase; text-decoration: none; color: var(--muted); }
.cs-hero h1 { margin: 22px 0 24px; max-width: 16ch; }
.cs-facts { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 24px; margin-top: 44px; padding-top: 22px; border-top: 1px solid var(--ink); }
.cs-facts div { font-size: 0.95rem; color: var(--ink-2); }
.cs-facts .label { display: block; margin-bottom: 6px; }

.chapter { display: grid; grid-template-columns: 180px minmax(0, 1fr); gap: 24px; }
.chapter .num { font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.12em; color: var(--copper); padding-top: 0.75em; }
.chapter h2 { margin-bottom: 24px; }
.chapter-body > * + figure, .chapter-body > * + .pair, .chapter-body > * + .trio { margin-top: 40px; }
.chapter-body > figure + p, .chapter-body > .pair + p, .chapter-body > .trio + p { margin-top: 40px; }

.pair { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(16px, 3vw, 32px); align-items: start; }
.trio { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(16px, 2.4vw, 28px); align-items: start; }

.decisions { margin: 8px 0 0; padding: 0; list-style: none; border-top: 1px solid var(--rule); max-width: 72ch; }
.decisions li { display: grid; grid-template-columns: 200px minmax(0, 1fr); gap: 20px; padding: 16px 0; border-bottom: 1px solid var(--rule); color: var(--ink-2); font-size: 0.97rem; }
.decisions li b { font-family: var(--serif); font-weight: 400; font-size: 1.12rem; color: var(--ink); }

.pull { font-family: var(--serif); font-style: italic; font-size: clamp(1.35rem, 2.6vw, 1.85rem); line-height: 1.35; color: var(--green-deep); max-width: 30ch; padding-left: 24px; border-left: 2px solid var(--green); margin: 48px 0; }

.next { display: flex; justify-content: space-between; gap: 24px; align-items: baseline; padding: 40px 0; border-top: 1px solid var(--ink); }
.next a { font-family: var(--serif); font-size: clamp(1.4rem, 3vw, 2rem); text-decoration: none; }
.next a:hover { color: var(--green); }

/* ---------- Reveal ---------- */

.reveal { opacity: 0; transform: translateY(14px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } }

/* ---------- Responsive ---------- */

@media (max-width: 960px) {
  .gallery { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cs-facts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 820px) {
  .hero-grid, .feature-grid, .entry-split, .pair { grid-template-columns: minmax(0, 1fr); }
  .sec-head, .entry, .chapter { grid-template-columns: minmax(0, 1fr); gap: 12px; }
  .cols { grid-template-columns: minmax(0, 1fr); }
  .trio { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .timeline > div { grid-template-columns: minmax(0, 1fr); gap: 4px; }
  .timeline .where { text-align: left; }
  .index a, .index .row { grid-template-columns: 36px minmax(0, 1fr) 56px; row-gap: 6px; }
  .index .o { grid-column: 2 / 3; grid-row: 2; }
  .decisions li { grid-template-columns: minmax(0, 1fr); gap: 4px; }
}

@media (max-width: 560px) {
  body { font-size: 16px; }
  .site-nav { gap: 14px; font-size: 0.85rem; }
  .site-nav .opt { display: none; }
  .trio { grid-template-columns: minmax(0, 1fr); }
  .gallery { grid-template-columns: minmax(0, 1fr); }
  .figures > div { flex-basis: 45%; }
  .figures > div + div { border-left: 0; padding-left: 0; }
}

.entry-stack figure { margin-top: 36px; max-width: 860px; }

/* ---------- Landing ---------- */

.intro { padding: clamp(56px, 10vw, 128px) 0 clamp(40px, 6vw, 72px); }
.intro h1 { font-size: clamp(3rem, 8vw, 6rem); margin: 20px 0 14px; }
.intro .sub { font-family: var(--serif); font-size: clamp(1.3rem, 2.6vw, 1.8rem); color: var(--green); margin: 0 0 28px; }
.intro .lede { max-width: 52ch; }
.quick { display: flex; flex-wrap: wrap; gap: 10px 32px; margin-top: 32px; }

.projects { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--ink); }
.projects li { border-bottom: 1px solid var(--rule); }
.projects a { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: clamp(20px, 4vw, 56px); padding: clamp(24px, 4vw, 40px) 0; text-decoration: none; align-items: center; }
.projects .thumb { aspect-ratio: 16 / 9; overflow: hidden; background: var(--paper-2); }
.projects .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.projects .thumb.contain img { object-fit: contain; padding: 12px; }
.projects a:hover .thumb img { transform: scale(1.025); }
.projects .n { font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.1em; color: var(--copper); }
.projects h3 { font-size: clamp(1.5rem, 2.8vw, 2.1rem); margin: 10px 0 6px; }
.projects .org { font-size: 0.92rem; color: var(--green); margin-bottom: 14px; }
.projects p { color: var(--ink-2); max-width: 52ch; margin: 0 0 16px; }
.projects .go { font-family: var(--mono); font-size: 0.76rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--green); }
.projects .go::after { content: " \2192"; display: inline-block; transition: transform .2s; }
.projects a:hover h3 { color: var(--green); }
.projects a:hover .go::after { transform: translateX(4px); }

.about-grid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: clamp(28px, 5vw, 72px); }
.interests { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--ink); }
.interests li { padding: 18px 0; border-bottom: 1px solid var(--rule); }
.interests b { display: block; font-family: var(--serif); font-weight: 400; font-size: 1.3rem; }
.interests span { color: var(--ink-2); font-size: 0.95rem; }
.hs-link { display: block; margin-top: 36px; padding: 24px 0; border-top: 1px solid var(--ink); border-bottom: 1px solid var(--rule); text-decoration: none; }
.hs-link .t { font-family: var(--serif); font-size: 1.5rem; display: block; margin: 6px 0 4px; }
.hs-link .t::after { content: " \2192"; color: var(--green); }
.hs-link span:last-child { color: var(--ink-2); font-size: 0.95rem; }
.hs-link:hover .t { color: var(--green); }

/* ---------- Project switcher ---------- */

.switcher { border-bottom: 1px solid var(--rule); background: var(--paper); }
.switcher .wrap { display: flex; gap: 6px 28px; flex-wrap: wrap; padding-top: 12px; padding-bottom: 12px; font-size: 0.85rem; }
.switcher a { text-decoration: none; color: var(--muted); white-space: nowrap; }
.switcher a span { font-family: var(--mono); font-size: 0.72rem; color: var(--copper); margin-right: 6px; }
.switcher a:hover { color: var(--green); }
.switcher a[aria-current="page"] { color: var(--ink); border-bottom: 1px solid var(--green); }

.next-prev { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; padding: 40px 0 56px; border-top: 1px solid var(--ink); }
.next-prev a { text-decoration: none; }
.next-prev .t { display: block; font-family: var(--serif); font-size: clamp(1.25rem, 2.6vw, 1.7rem); margin-top: 6px; }
.next-prev a:hover .t { color: var(--green); }
.next-prev .r { text-align: right; }

.spec { margin: 8px 0 0; padding: 0; list-style: none; border-top: 1px solid var(--rule); max-width: 72ch; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 32px; }
.spec li { display: flex; justify-content: space-between; gap: 16px; padding: 10px 0; border-bottom: 1px solid var(--rule); font-size: 0.93rem; color: var(--ink-2); }
.spec li b { font-weight: 500; color: var(--ink); font-family: var(--mono); font-size: 0.85rem; white-space: nowrap; }

.eq { font-family: var(--mono); font-size: 0.9rem; color: var(--green-deep); background: var(--green-pale); padding: 14px 18px; margin: 0 0 1.2em; max-width: 64ch; overflow-x: auto; white-space: pre; line-height: 1.7; }

.chart .bar.lo { fill: var(--green); opacity: .38; }
.chart .fuse { fill: var(--paper-2); stroke: var(--ink-2); stroke-width: 1.2; }
.chart .boom { stroke: var(--ink-2); stroke-width: 3; }
.chart .wing { fill: var(--green-pale); stroke: var(--green); stroke-width: 1.4; }
.chart .tail { fill: var(--green-pale); stroke: var(--green-deep); stroke-width: 1.4; }
.chart .foil { fill: var(--green-pale); stroke: var(--green); stroke-width: 1.6; }

.note { font-size: 0.85rem; color: var(--muted); border-left: 2px solid var(--copper); padding-left: 14px; max-width: 64ch; }

@media (max-width: 820px) {
  .projects a, .about-grid { grid-template-columns: minmax(0, 1fr); }
  .spec { grid-template-columns: minmax(0, 1fr); }
}

/* spacing between stacked blocks inside a chapter */
.chapter-body > figure, .chapter-body > .pair, .chapter-body > .trio,
.chapter-body > .spec, .chapter-body > .decisions, .chapter-body > .figures { margin-bottom: 40px; }
.chapter-body > :last-child { margin-bottom: 0; }
.chapter-body > * + figure, .chapter-body > * + .pair, .chapter-body > * + .trio { margin-top: 0; }
.chapter-body > .prose + figure, .chapter-body > .prose + .pair, .chapter-body > .eq + .prose { margin-top: 8px; }
.eq { max-width: 100%; }