/* Diffraction Collective — site styles
   Palette drawn from the official nested-D mark: black, white, warm paper. */
:root {
  --ink: #0c0c0c;
  --ink-2: #1a1a1a;
  --paper: #f3f1ea;
  --paper-2: #e8e4d8;
  --white: #ffffff;
  --mute: #5c5c5c;
  --line: #d6d1c4;
  --line-strong: #1a1a1a;
  --focus: #0c0c0c;
  --radius: 2px;
  --max: 1120px;
  --nav-h: 76px;
  --shadow: 0 12px 40px rgba(0,0,0,.08);
  --font-display: "Arial Narrow", "Segoe UI", Arial, sans-serif;
  --font-body: "Segoe UI", Arial, Helvetica, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper);
  font-size: 18px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
a:hover { text-decoration: none; }
button, input, textarea, select { font: inherit; }
.skip {
  position: absolute; left: -999px; top: 0;
}
.skip:focus {
  left: 12px; top: 12px; z-index: 1000;
  background: #fff; padding: .6rem 1rem;
}

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 40;
  background: rgba(12,12,12,.94);
  color: #fff;
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.header-inner {
  max-width: calc(var(--max) + 80px);
  margin: 0 auto;
  padding: 0 24px;
  min-height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.brand {
  display: flex; align-items: center; gap: 12px;
  text-decoration: none; color: #fff;
  flex-shrink: 0;
}
.brand img {
  width: 42px; height: 42px;
  object-fit: cover;
}
.brand-text {
  display: flex; flex-direction: column; line-height: 1.05;
}
.brand-text strong {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: .02em;
  font-size: 15px;
}
.brand-text span {
  font-size: 11px; letter-spacing: .16em; text-transform: uppercase;
  color: rgba(255,255,255,.62);
}
.nav {
  display: flex; align-items: center; gap: 2px;
}
.nav a {
  text-decoration: none;
  color: rgba(255,255,255,.82);
  font-size: 14px;
  letter-spacing: .02em;
  padding: 10px 11px;
}
.nav a:hover, .nav a[aria-current="page"] { color: #fff; }
.nav a[aria-current="page"] {
  box-shadow: inset 0 -2px 0 #fff;
}
.nav-cta {
  margin-left: 8px;
  background: #fff; color: #0c0c0c !important;
  padding: 8px 14px !important;
  font-weight: 600;
  font-size: 13px !important;
  letter-spacing: .06em;
  text-transform: uppercase;
}
.nav-cta:hover { background: var(--paper-2); }
.nav-toggle {
  display: none;
  background: transparent; border: 1px solid rgba(255,255,255,.3);
  color: #fff; width: 42px; height: 42px;
  cursor: pointer;
}

/* Hero */
.hero {
  position: relative;
  min-height: 78vh;
  color: #fff;
  background: #0c0c0c center/cover no-repeat;
  display: flex; align-items: flex-end;
}
.hero::after {
  content: "";
  position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(0,0,0,.25) 0%, rgba(0,0,0,.72) 70%, rgba(0,0,0,.88) 100%);
}
.hero-inner {
  position: relative; z-index: 1;
  max-width: calc(var(--max) + 80px);
  margin: 0 auto;
  padding: 80px 24px 64px;
}
.kicker {
  font-size: 12px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: rgba(255,255,255,.7);
  margin: 0 0 16px;
}
.hero h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.2rem, 5.4vw, 4.4rem);
  line-height: 1.02;
  letter-spacing: -.03em;
  margin: 0 0 18px;
  max-width: 16ch;
}
.hero p.lede {
  max-width: 42rem;
  font-size: 1.15rem;
  color: rgba(255,255,255,.84);
  margin: 0 0 28px;
}
.page-hero {
  min-height: 42vh;
}
.page-hero h1 { max-width: 22ch; }

/* Buttons */
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  text-decoration: none;
  padding: 12px 18px;
  font-size: 14px;
  letter-spacing: .08em;
  text-transform: uppercase;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
}
.btn-light { background: #fff; color: #0c0c0c; }
.btn-light:hover { background: var(--paper-2); }
.btn-ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,.55); }
.btn-ghost:hover { background: rgba(255,255,255,.08); }
.btn-dark { background: #0c0c0c; color: #fff; }
.btn-dark:hover { background: #222; }
.btn-line { background: transparent; color: #0c0c0c; border-color: #0c0c0c; }
.btn-line:hover { background: #0c0c0c; color: #fff; }

/* Layout */
.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}
.section { padding: 88px 0; }
.section-tight { padding: 56px 0; }
.section-dark {
  background: var(--ink);
  color: #fff;
}
.section-alt { background: var(--paper-2); }
h2 {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  letter-spacing: -.02em;
  line-height: 1.15;
  margin: 0 0 16px;
}
h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  margin: 0 0 8px;
  letter-spacing: -.01em;
}
.eyebrow {
  font-size: 12px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--mute);
  margin: 0 0 10px;
}
.section-dark .eyebrow { color: rgba(255,255,255,.55); }
.lead { font-size: 1.15rem; max-width: 46rem; }
.split {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 56px;
  align-items: center;
}
.split.reverse { grid-template-columns: .95fr 1.05fr; }
.split img, .media img {
  width: 100%;
  height: 420px;
  object-fit: cover;
}
.frame {
  position: relative;
}
.frame::before {
  content: "";
  position: absolute;
  inset: 14px -14px -14px 14px;
  border: 1px solid var(--ink);
  z-index: 0;
}
.frame img { position: relative; z-index: 1; }
.section-dark .frame::before { border-color: rgba(255,255,255,.35); }

/* Cards */
.grid-3, .grid-2, .grid-4 {
  display: grid; gap: 22px;
}
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.card {
  background: #fff;
  border: 1px solid var(--line);
  padding: 26px 24px;
}
.card.dark {
  background: var(--ink-2);
  border-color: #2a2a2a;
  color: #fff;
}
.card h3 { margin-bottom: 10px; }
.card p { margin: 0; color: var(--mute); }
.card.dark p { color: rgba(255,255,255,.72); }
.card-media img {
  width: 100%; height: 190px; object-fit: cover; margin: -26px -24px 18px; width: calc(100% + 48px);
}
.meta {
  font-size: 12px; letter-spacing: .12em; text-transform: uppercase;
  color: var(--mute); margin-bottom: 8px;
}

/* Stats */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.stat { padding: 28px 16px; text-align: center; }
.stat + .stat { border-left: 1px solid var(--line); }
.stat b {
  display: block;
  font-family: var(--font-display);
  font-size: 2rem;
  letter-spacing: -.03em;
}
.stat span { font-size: 13px; color: var(--mute); }

/* Lists */
.plain-list { margin: 0; padding: 0; list-style: none; }
.plain-list li {
  padding: 10px 0 10px 22px;
  position: relative;
  border-bottom: 1px solid var(--line);
}
.plain-list li::before {
  content: "";
  width: 8px; height: 8px;
  border: 1px solid var(--ink);
  position: absolute; left: 0; top: 18px;
}
.check-list { margin: 0; padding: 0; list-style: none; }
.check-list li {
  padding: 8px 0 8px 26px;
  position: relative;
}
.check-list li::before {
  content: "";
  position: absolute; left: 0; top: 16px;
  width: 10px; height: 5px;
  border-left: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
  transform: rotate(-45deg);
}

/* People / partners */
.person, .partner {
  background: #fff;
  border: 1px solid var(--line);
  padding: 22px;
}
.person a, .partner a { color: var(--ink); }
.soon {
  display: inline-block;
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  border: 1px solid var(--ink);
  padding: 3px 8px;
  margin-bottom: 10px;
}

/* Forms */
form label { display: block; font-size: 14px; margin: 0 0 6px; }
form input, form textarea, form select {
  width: 100%;
  border: 1px solid var(--line-strong);
  background: #fff;
  padding: 12px 12px;
  margin-bottom: 16px;
}
form textarea { min-height: 140px; resize: vertical; }
.form-note { font-size: 14px; color: var(--mute); }

/* Tables */
.simple-table { width: 100%; border-collapse: collapse; font-size: 16px; }
.simple-table th, .simple-table td {
  text-align: left; padding: 12px 10px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
.simple-table th { font-size: 12px; letter-spacing: .12em; text-transform: uppercase; }

/* Footer */
.site-footer {
  background: #0c0c0c;
  color: rgba(255,255,255,.78);
  padding: 64px 0 28px;
  font-size: 15px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 40px;
}
.site-footer a { color: #fff; text-decoration: none; }
.site-footer a:hover { text-decoration: underline; }
.site-footer h4 {
  font-family: var(--font-display);
  color: #fff;
  margin: 0 0 14px;
  font-size: 14px;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { margin: 0 0 8px; }
.ack {
  border-top: 1px solid rgba(255,255,255,.12);
  padding-top: 22px;
  font-size: 14px;
  color: rgba(255,255,255,.62);
  max-width: 70rem;
}
.legal {
  display: flex; flex-wrap: wrap; gap: 14px 24px;
  justify-content: space-between;
  margin-top: 22px;
  font-size: 13px;
  color: rgba(255,255,255,.5);
}

/* Utility */
.mb-0 { margin-bottom: 0; }
.mt-24 { margin-top: 24px; }
.mt-40 { margin-top: 40px; }
.narrow { max-width: 46rem; }
.center { text-align: center; }
hr.rule { border: 0; border-top: 1px solid var(--line); margin: 40px 0; }

/* Events */
.event {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 24px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}
.event-date {
  font-family: var(--font-display);
  font-size: 13px;
  letter-spacing: .12em;
  text-transform: uppercase;
}

/* 404 */
.error-page { min-height: 60vh; display: flex; align-items: center; }

@media (max-width: 980px) {
  .split, .split.reverse { grid-template-columns: 1fr; }
  .split img { height: 320px; }
  .grid-3, .grid-4 { grid-template-columns: 1fr 1fr; }
  .stats { grid-template-columns: 1fr 1fr; }
  .stat + .stat { border-left: 0; border-top: 1px solid var(--line); }
  .stat:nth-child(2) { border-left: 1px solid var(--line); border-top: 0; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .nav {
    display: none;
    position: absolute; left: 0; right: 0; top: var(--nav-h);
    background: #0c0c0c;
    flex-direction: column; align-items: stretch;
    padding: 12px 16px 20px;
    border-bottom: 1px solid rgba(255,255,255,.08);
  }
  .nav.open { display: flex; }
  .nav a { padding: 12px 8px; }
  .nav-cta { margin: 8px 0 0; text-align: center; }
}
@media (max-width: 640px) {
  .grid-3, .grid-4, .grid-2 { grid-template-columns: 1fr; }
  .event { grid-template-columns: 1fr; gap: 6px; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero { min-height: 70vh; }
}