/* Jonathan Gregg portfolio: grounded editorial system */
:root {
  --paper: #f7f7f4;
  --ink: #171717;
  --ink-2: #4b4b48;
  --ink-3: #73736d;
  --rule: #d4d4ce;
  --wash: #e5e5df;
  --serif: -apple-system, BlinkMacSystemFont, "Helvetica Neue", Helvetica, Arial, sans-serif;
  --sans: -apple-system, BlinkMacSystemFont, "Helvetica Neue", Helvetica, Arial, sans-serif;
  --mono: "SFMono-Regular", Menlo, Consolas, "Liberation Mono", monospace;
  --wrap: 72rem;
  --gutter: clamp(1rem, 4vw, 2.5rem);
  --ease: cubic-bezier(.2, .7, .2, 1);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #171717;
    --ink: #f2f2ee;
    --ink-2: #c5c5be;
    --ink-3: #a5a59d;
    --rule: #454540;
    --wash: #292926;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #171717;
  --ink: #f2f2ee;
  --ink-2: #c5c5be;
  --ink-3: #a5a59d;
  --rule: #454540;
  --wash: #292926;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
html.modal-open { overflow: hidden; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 400 1.0625rem/1.65 var(--sans); letter-spacing: -.012em; -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; }
h1, h2, h3, h4 { margin: 0; font-family: var(--serif); font-weight: 500; letter-spacing: -.04em; line-height: 1.1; }
p { margin: 0 0 1em; }
ul, ol { margin: 0; padding: 0; list-style: none; }
button { color: inherit; font: inherit; cursor: pointer; }
::selection { background: var(--ink); color: var(--paper); }
:focus-visible { outline: 3px solid var(--ink); outline-offset: 5px; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }
.skip { position: absolute; left: -999px; top: 0; z-index: 100; padding: .6rem 1rem; background: var(--ink); color: var(--paper); }
.skip:focus { left: 1rem; top: 1rem; }

.text-link, .btn { display: inline-flex; align-items: center; min-height: 1.6rem; padding: 0 0 .14rem; border: 0; background: linear-gradient(currentColor, currentColor) 0 100% / 100% 1px no-repeat; color: var(--ink); font-size: .9rem; font-weight: 500; text-decoration: none; transition: color .2s var(--ease); }
.text-link:hover, .btn:hover { color: var(--ink-2); }
.btn-ghost, .btn-small { border: 0; background-color: transparent; }
.kicker { margin-bottom: .9rem; color: var(--ink-3); font: 500 .72rem/1.3 var(--mono); letter-spacing: .06em; text-transform: uppercase; }
.tag { display: inline; margin: 0 .55rem .1rem 0; color: var(--ink-3); font: .69rem/1.5 var(--mono); }

.site-header { position: sticky; top: 0; z-index: 20; border-bottom: 1px solid var(--rule); background: color-mix(in srgb, var(--paper) 95%, transparent); }
.site-header.scrolled { border-bottom-color: var(--ink); }
.header-inner { display: flex; align-items: center; gap: 1.25rem; height: 4.5rem; }
.wordmark { display: flex; align-items: center; gap: .55rem; font-size: .9rem; font-weight: 500; text-decoration: none; }
.monogram { display: grid; width: 1.8rem; height: 1.8rem; place-items: center; border: 1px solid var(--ink); font: 500 .68rem/1 var(--mono); }
.nav { margin-left: auto; }
.nav ul { display: flex; gap: .1rem; }
.nav a { display: block; padding: .4rem .55rem; color: var(--ink-2); font-size: .84rem; text-decoration: none; }
.nav a:hover, .nav a.active { color: var(--ink); text-decoration: underline; text-underline-offset: .25rem; }
.nav-toggle { display: none; border: 1px solid var(--rule); background: none; padding: .4rem .75rem; font-size: .88rem; }
.header-actions { display: flex; align-items: center; gap: .5rem; }
.theme-toggle { display: grid; width: 2rem; height: 2rem; place-items: center; border: 0; background: none; color: var(--ink-2); }
.theme-toggle:hover { color: var(--ink); }

.hero { border-bottom: 1px solid var(--rule); background: var(--paper); }
.contours, .hero::before { display: none; }
.hero-inner { display: grid; grid-template-columns: minmax(0, 1.12fr) minmax(17rem, .68fr); align-items: end; gap: clamp(2rem, 8vw, 8rem); padding-top: clamp(4rem, 10vw, 8rem); padding-bottom: clamp(4rem, 9vw, 7rem); }
.hero-copy { max-width: 43rem; }
.hero .eyebrow { margin-bottom: 1.5rem; color: var(--ink-3); font: 500 .73rem/1.3 var(--mono); letter-spacing: .06em; text-transform: uppercase; }
.hero-title { display: grid; gap: .55rem; }
.hero-name { color: var(--ink); font: 500 .9rem/1.2 var(--sans); letter-spacing: .01em; text-transform: uppercase; }
.hero-headline { max-width: 11ch; font-size: clamp(3.1rem, 6vw, 5.8rem); font-weight: 400; letter-spacing: -.055em; line-height: .98; }
.hero-intro { max-width: 36rem; margin: 1.75rem 0 1.5rem; color: var(--ink-2); font-size: clamp(1.08rem, 1.55vw, 1.22rem); line-height: 1.5; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 1.5rem; }
.hero-portrait { align-self: stretch; margin: 0; background: var(--wash); }
.hero-portrait img { width: 100%; height: 100%; min-height: 30rem; max-height: 44rem; object-fit: cover; object-position: center 20%; filter: saturate(.82) contrast(.98); }
.glance { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); margin-top: clamp(2.5rem, 6vw, 4.5rem); border-top: 1px solid var(--rule); }
.glance-item { display: grid; gap: .35rem; padding: 1rem 1rem 0 0; }
.glance-item + .glance-item { padding-left: 1rem; border-left: 1px solid var(--rule); }
.glance dd { margin: 0; color: var(--ink); font: 500 clamp(1.45rem, 2.5vw, 2rem)/1 var(--sans); letter-spacing: -.04em; }
.glance dt { color: var(--ink-3); font-size: .72rem; line-height: 1.35; }

.section { padding: clamp(4rem, 9vw, 7rem) 0; border-bottom: 1px solid var(--rule); scroll-margin-top: 3rem; }
.section-alt { background: var(--paper); }
.section-head { margin-bottom: 3rem; }
.section-head h2 { max-width: 15ch; font-size: clamp(2.2rem, 4.3vw, 4rem); font-weight: 400; letter-spacing: -.05em; }
.section-lede { max-width: 38rem; margin-top: 1rem; color: var(--ink-2); }
.two-col { display: grid; grid-template-columns: minmax(0, .75fr) minmax(0, 1.35fr); gap: clamp(2.5rem, 7vw, 7rem); }
.two-col .section-head { position: sticky; top: 6rem; align-self: start; }
.two-col .text-link { margin-top: 1.5rem; }

.filters { display: flex; flex-wrap: wrap; gap: .4rem; }
.chip { padding: .2rem 0; border: 0; background: transparent; color: var(--ink-3); font-size: .82rem; }
.chip + .chip { margin-left: 1rem; }
.chip:hover, .chip[aria-pressed="true"] { color: var(--ink); text-decoration: underline; text-underline-offset: .3rem; }
.filter-count { min-height: 1.4em; margin: .9rem 0 0; color: var(--ink-3); font: .8rem var(--mono); }
.work-list { display: grid; margin-top: 1.25rem; border-top: 1px solid var(--ink); }
.work-item { border-bottom: 1px solid var(--rule); }
.work-link { display: grid; grid-template-columns: 3.25rem minmax(0, 1fr) 8rem 1rem; gap: clamp(1rem, 2vw, 2rem); padding: 1.7rem 0; text-decoration: none; }
.work-index { display: block; color: var(--ink-3); font: .72rem/1.3 var(--mono); letter-spacing: .03em; }
.work-index span { display: none; }
.work-index strong { color: inherit; font: inherit; letter-spacing: inherit; }
.work-main { display: grid; gap: .42rem; }
.work-meta { color: var(--ink-3); font: .72rem/1.35 var(--mono); letter-spacing: .04em; text-transform: uppercase; }
.work-title { max-width: 28ch; font-size: clamp(1.45rem, 2.4vw, 2rem); font-weight: 400; letter-spacing: -.035em; }
.work-link:hover .work-title { color: var(--ink-2); }
.work-summary { max-width: 40rem; color: var(--ink-2); }
.work-stat { align-self: start; display: grid; gap: .25rem; color: var(--ink-3); font-size: .72rem; }
.work-stat strong { color: var(--ink); font: 500 1.45rem/1 var(--sans); letter-spacing: -.04em; }
.work-arrow { align-self: start; color: var(--ink-3); font-size: 1.1rem; transition: transform .2s var(--ease); }
.work-link:hover .work-arrow { color: var(--ink); transform: translateX(2px); }

.principles { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 1px solid var(--ink); }
.principle { padding: 1.75rem 1.75rem 1.75rem 0; border-bottom: 1px solid var(--rule); }
.principle:nth-child(even) { padding-left: 1.75rem; border-left: 1px solid var(--rule); }
.principle-num { color: var(--ink-3); font: .8rem var(--mono); }
.principle h3 { margin: .6rem 0; font-size: 1.45rem; font-weight: 400; }
.principle p { margin: 0; color: var(--ink-2); }

.timeline { border-top: 1px solid var(--ink); }
.role { border-bottom: 1px solid var(--rule); }
.role summary { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; padding: 1.35rem 0; cursor: pointer; list-style: none; }
.role summary::-webkit-details-marker { display: none; }
.role-head { display: grid; gap: .15rem; }
.role-title { font-size: 1.28rem; font-weight: 400; }
.role-title::after { content: " +"; color: var(--ink-3); font-family: var(--mono); font-size: .9rem; }
.role details[open] .role-title::after { content: " −"; }
.role-org { color: var(--ink); font-size: .95rem; font-weight: 500; }
.role-dates { color: var(--ink-3); font: .78rem/1.5 var(--mono); text-align: right; white-space: nowrap; }
.role-dates > span { display: block; }
.role-blurb { margin: -.4rem 0 .6rem; color: var(--ink-3); font-size: .92rem; }
.role ul { padding: 0 0 1.4rem 1.1rem; color: var(--ink-2); list-style: square; }
.role li { margin-bottom: .35rem; }
.role li::marker { color: var(--ink-3); }
.toolkit-title { margin: 3rem 0 1rem; font-size: 1.35rem; font-weight: 400; }
.toolkit { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.5rem 2rem; }
.tool-group h4 { margin-bottom: .4rem; color: var(--ink-3); font: 500 .78rem var(--mono); letter-spacing: .06em; text-transform: uppercase; }
.tool-group p { margin: 0; }
.sep { color: var(--rule); }

.prose p { max-width: 38rem; color: var(--ink-2); font-size: 1.12rem; }
.prose p:first-child { font: 400 clamp(1.3rem, 2.2vw, 1.55rem)/1.45 var(--sans); }
.prose .edu { margin-top: 2rem; padding-top: 1rem; border-top: 1px solid var(--rule); color: var(--ink-3); font: .82rem/1.6 var(--mono); }
.contact-title { max-width: 18ch; margin-bottom: 2rem; font-size: clamp(2rem, 5vw, 3.6rem); font-weight: 400; }
.contact-row { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem 1.5rem; }
.contact-email { border-bottom: 1px solid var(--ink); color: var(--ink); font: 400 clamp(1.25rem, 3vw, 2rem)/1.2 var(--sans); text-decoration: none; word-break: break-all; }
.contact-email:hover { color: var(--ink-2); }
.contact-links { display: flex; gap: 1.75rem; margin-top: 2rem; }
.site-footer { padding: 1.75rem 0; color: var(--ink-3); font-size: .88rem; }
.footer-inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1rem; }
.footer-inner p { margin: 0; }

.case { width: min(52rem, 100vw); max-width: 100vw; height: 100dvh; max-height: 100dvh; margin: 0 0 0 auto; padding: 0; border: 0; border-left: 1px solid var(--rule); background: var(--paper); color: var(--ink); }
.case[open], .lightbox[open] { display: flex; flex-direction: column; }
.case::backdrop { background: rgb(23 23 23 / .22); }
.case-bar, .case-nav { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: .9rem clamp(1.25rem, 4vw, 3rem); border-bottom: 1px solid var(--rule); }
.case-nav { border-top: 1px solid var(--rule); border-bottom: 0; }
.case-meta, .case-pos { margin: 0; color: var(--ink-3); font: .8rem var(--mono); }
.case-close, .case-step { border: 1px solid var(--rule); background: none; padding: .45rem .8rem; color: var(--ink-2); font-size: .88rem; }
.case-close:hover, .case-step:hover:not(:disabled) { border-color: var(--ink); color: var(--ink); }
.case-step:disabled { opacity: .4; cursor: default; }
.case-body { flex: 1; overflow-y: auto; padding: clamp(1.5rem, 5vw, 3rem); }
.case-body h2 { max-width: 22ch; font-size: clamp(1.9rem, 4vw, 2.7rem); font-weight: 400; }
.case-summary { max-width: 40rem; margin: 1rem 0 2rem; color: var(--ink-2); font-size: 1.15rem; }
.case-metrics { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); margin: 0 0 2.5rem; border-block: 1px solid var(--rule); }
.case-metrics div { padding: 1.1rem 1rem 1.1rem 0; }
.case-metrics div + div { padding-left: 1rem; border-left: 1px solid var(--rule); }
.case-metrics dd { margin: 0 0 .3rem; color: var(--ink); font: 500 2rem/1 var(--sans); }
.case-metrics dt { color: var(--ink-2); font-size: .85rem; }
.case-grid { display: grid; gap: 2rem; }
.case-grid h3 { margin-bottom: .75rem; color: var(--ink-3); font: 500 .78rem var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.case-grid p { max-width: 42rem; margin: 0; }
.steps { display: grid; gap: .9rem; max-width: 42rem; counter-reset: s; }
.steps li { display: grid; grid-template-columns: 2rem 1fr; counter-increment: s; }
.steps li::before { content: counter(s, decimal-leading-zero); color: var(--ink-3); font: 500 .8rem/1.9 var(--mono); }
.case-outcome { padding: 1.25rem 1.4rem; border-left: 3px solid var(--ink); background: var(--wash); }
.case-outcome p { font: 400 1.2rem/1.45 var(--sans); }

.project { display: grid; grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr); align-items: start; gap: clamp(2rem, 6vw, 6rem); padding-top: 2rem; border-top: 1px solid var(--ink); }
.project + .project { margin-top: 5rem; }
.project-figure { margin: 0; }
.project-zoom { position: relative; display: grid; width: 100%; aspect-ratio: var(--project-aspect, 7 / 5); place-items: center; overflow: hidden; border: 0; background: var(--wash); cursor: zoom-in; }
.project-zoom img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.88); transition: transform .4s var(--ease); }
.project-zoom:hover img { transform: scale(1.01); }
.project-image-fallback { padding: 2rem; color: var(--ink); font: 500 .9rem/1.5 var(--mono); text-align: center; }
.project-zoom-hint { position: absolute; right: .75rem; bottom: .75rem; padding: .5rem .65rem; background: rgb(23 23 23 / .78); color: #f7f7f4; font: 500 .72rem/1 var(--mono); letter-spacing: .05em; text-transform: uppercase; opacity: 0; transition: opacity .2s var(--ease); }
.project-zoom:hover .project-zoom-hint, .project-zoom:focus-visible .project-zoom-hint { opacity: 1; }
.project-text h3 { margin: .5rem 0 1rem; font-size: clamp(1.6rem, 3vw, 2.35rem); font-weight: 400; letter-spacing: -.04em; }
.project-text > p { color: var(--ink-2); }
.project-facts { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); margin: 1.5rem 0; border-block: 1px solid var(--rule); }
.project-facts div { padding: .9rem .75rem .9rem 0; }
.project-facts div + div { padding-left: .75rem; border-left: 1px solid var(--rule); }
.project-facts dd { margin: 0 0 .25rem; color: var(--ink); font: 500 1.45rem/1 var(--sans); letter-spacing: -.04em; }
.project-facts dt { color: var(--ink-2); font-size: .8rem; }
.project-why { font-size: .96rem; }
.project-why strong { color: var(--ink); font-weight: 600; }
.project-source { margin-top: 1.25rem; color: var(--ink-3); font: .8rem/1.6 var(--mono); }
.project-source .text-link { color: var(--ink-2); font-weight: 400; }

.lightbox { width: 100vw; height: 100dvh; max-width: 100vw; max-height: 100dvh; margin: 0; padding: 0; border: 0; background: rgb(23 23 23 / .96); color: #f2f2ee; }
.lightbox::backdrop { background: transparent; }
.lightbox-bar { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: .85rem clamp(1rem, 3vw, 2rem); }
.lightbox-caption { margin: 0; color: #c5c5be; font: .8rem var(--mono); letter-spacing: .04em; text-transform: uppercase; }
.lightbox-actions { display: flex; gap: .5rem; }
.lightbox-btn { border: 1px solid #65655e; background: none; padding: .45rem .8rem; color: #f2f2ee; font-size: .88rem; text-decoration: none; }
.lightbox img { flex: 1; min-height: 0; width: 100%; padding: 0 clamp(.5rem, 2vw, 2rem) clamp(.5rem, 2vw, 2rem); object-fit: contain; cursor: zoom-out; }
.toast { position: fixed; bottom: 1.5rem; left: 50%; z-index: 50; padding: .65rem 1rem; background: var(--ink); color: var(--paper); font-size: .9rem; opacity: 0; pointer-events: none; transform: translate(-50%, 1rem); transition: opacity .25s, transform .25s var(--ease); }
.toast.show { opacity: 1; transform: translate(-50%, 0); }
.reveal { opacity: 0; transform: translateY(10px); transition: opacity .5s var(--ease), transform .5s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

@media (max-width: 900px) {
  .project { grid-template-columns: 1fr; }
  .project-zoom-hint { opacity: 1; }
  .two-col { grid-template-columns: 1fr; gap: 0; }
  .two-col .section-head { position: static; }
  .hero-inner { grid-template-columns: minmax(0, 1fr) minmax(14rem, .62fr); gap: 2rem; }
  .hero-headline { font-size: clamp(3rem, 6.4vw, 4.8rem); }
  .work-link { grid-template-columns: 2.5rem minmax(0, 1fr) 1.5rem; }
  .work-stat { grid-column: 2; grid-row: 2; display: flex; align-items: baseline; gap: .55rem; }
}
@media (max-width: 760px) {
  .nav-toggle { display: inline-block; }
  .nav ul { display: none; position: absolute; top: 4rem; right: 0; left: 0; flex-direction: column; gap: 0; padding: .5rem var(--gutter) 1rem; border-bottom: 1px solid var(--rule); background: var(--paper); }
  .nav ul.open { display: flex; }
  .nav a { padding: .8rem 0; border-bottom: 1px solid var(--rule); font-size: 1.05rem; }
  .wordmark-name { display: none; }
  .header-inner { height: 4rem; gap: .75rem; }
  .hero-inner { grid-template-columns: 1fr; padding-top: 3.25rem; padding-bottom: 3.5rem; }
  .hero-portrait { width: min(100%, 32rem); max-width: 32rem; }
  .hero-portrait img { min-height: 0; max-height: none; aspect-ratio: 3 / 4; }
  .hero-headline { font-size: clamp(3rem, 13vw, 4.5rem); }
  .glance { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .glance-item { padding: .9rem .9rem .9rem 0; border-bottom: 1px solid var(--rule); }
  .glance-item:nth-child(even) { padding-left: .9rem; border-left: 1px solid var(--rule); }
  .principles, .toolkit { grid-template-columns: 1fr; }
  .principle, .principle:nth-child(even) { padding: 1.75rem 0; border-left: 0; }
  .role summary { flex-direction: column; gap: .35rem; }
  .role-dates { text-align: left; white-space: normal; }
  .role-dates > span { display: inline; }
  .role-place::before { content: " · "; }
  .case { border-left: 0; }
  .case-metrics { grid-template-columns: 1fr; }
  .case-metrics div { display: flex; align-items: baseline; gap: .75rem; padding: .8rem 0; }
  .case-metrics div + div { padding-left: 0; border-top: 1px solid var(--rule); border-left: 0; }
  .case-metrics dd { margin: 0; font-size: 1.5rem; }
  .project-facts dd { font-size: 1.1rem; white-space: normal; }
  .project-facts div { padding-right: .5rem; }
  .project-facts div + div { padding-left: .5rem; }
  .lightbox-caption { display: none; }
  .work-link { grid-template-columns: 2.25rem minmax(0, 1fr) 1rem; gap: .85rem; }
  .work-stat { grid-column: 2; grid-row: 2; }
  .work-title { font-size: 1.5rem; }
  .project-zoom { aspect-ratio: 4 / 3; }
}
@media (prefers-contrast: more) {
  :root { --ink-2: #282826; --ink-3: #4f4f4b; --rule: #8b8b84; }
  :root[data-theme="dark"], :root:not([data-theme="light"]) { --ink-2: #f2f2ee; --ink-3: #d1d1c9; --rule: #94948a; }
  .site-header, .section, .work-list, .work-item, .glance { border-color: var(--ink); }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}
@media (pointer: coarse) {
  .theme-toggle, .nav-toggle, .case-close, .case-step, .lightbox-btn { min-width: 44px; min-height: 44px; }
  .hero .text-link, .hero .btn { min-height: 44px; }
}
@media print {
  .site-header, .hero-portrait, .lightbox, .project-zoom-hint, .filters, .filter-count, .hero-cta, .work-arrow, .case, .toast, .site-footer a, #copy-email, .theme-toggle { display: none !important; }
  body, .hero { background: #fff; color: #000; font-size: 11pt; }
  .section, .hero-inner { padding: 1.5rem 0; }
  .section-alt { background: none; }
  .reveal { opacity: 1; transform: none; }
  .role details > *:not(summary) { display: block; }
  a { text-decoration: none; }
}