/* DVL Partners — site styles
   Design tokens derived from the Industry design system (steel-blue wireframe)
   with an elegant serif overlay (EB Garamond / Libre Baskerville). */

:root {
  /* color */
  --bg: #f2f2f3;
  --text: #1d1f20;
  --accent: #5980a6;
  --accent-600: #597ea3;
  --accent-700: #416180;
  --accent-900: #1d2d3d;
  --neutral-400: #b7b7ba;
  --neutral-700: #5d5d60;
  --divider: color-mix(in srgb, #1d1f20 16%, transparent);
  --muted: color-mix(in srgb, var(--text) 78%, transparent);
  --muted-strong: color-mix(in srgb, var(--text) 82%, transparent);

  /* type */
  --font-display: 'Manrope', system-ui, sans-serif;   /* headings, nav, figures */
  --font-brand: 'Libre Baskerville', Georgia, serif; /* wordmark only */
  --font-body: 'Barlow', system-ui, sans-serif;     /* body copy */

  /* layout */
  --max-w: 1200px;
  --pad-x: clamp(20px, 5vw, 72px);
  --section-y: 96px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font-family: var(--font-body); text-wrap: pretty;
}
a { text-decoration: none; color: inherit; }
a:hover { color: var(--accent-600); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* ── nav ───────────────────────────────────────────── */
.nav {
  display: flex; align-items: center; gap: 24px;
  padding: 16px max(28px, calc((100% - var(--max-w)) / 2 + 28px));
  background: var(--bg); border-bottom: 1px solid var(--divider);
}
.nav-brand { font-family: var(--font-brand); font-size: 18px; margin-right: auto; }
.nav-links { display: flex; align-items: center; gap: 24px; }
.nav a { font-family: var(--font-display); font-weight: 500; font-size: 15px; }
.nav a[aria-current='page'] { color: var(--accent); }
.nav-toggle { display: none; }

/* ── shell ─────────────────────────────────────────── */
.shell { max-width: var(--max-w); margin: 0 auto; padding: 0 var(--pad-x); }
.section { padding: var(--section-y) 0 88px; }
.section--hero { padding: 96px 0 72px; }
.split {
  display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: 24px clamp(24px, 5vw, 96px); align-items: center; padding: 56px 0 96px;
}
.split--text-first { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); padding: 56px 0 72px; }
.split--bio { grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); align-items: start; padding: 0 0 96px; }
.cells { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(32px, 4vw, 64px); }

/* ── type ──────────────────────────────────────────── */
h1 {
  font-family: var(--font-display); font-weight: 500;
  font-size: clamp(38px, 5.2vw, 64px); line-height: 1.14; margin: 0;
}
h1 span { display: block; }
h2, h3 { font-family: var(--font-display); font-weight: 500; letter-spacing: 0.01em; margin: 0; }
.kicker {
  display: block; font-size: 13px; line-height: 12px; letter-spacing: 0.14em;
  text-transform: uppercase; font-weight: 400; color: var(--neutral-700); margin: 0 0 16px;
}
.rule { height: 1px; border: 0; width: 32px; margin: 0 0 32px; background: var(--neutral-400); }
.lead { font-size: 19px; line-height: 1.7; max-width: 56ch; margin: 36px 0 0; color: var(--muted-strong); }
.copy { font-size: 15px; line-height: 26px; color: var(--muted); margin: 0; max-width: 60ch; }
.copy + .copy { margin-top: 16px; }

/* ── cards & figures (hairline, no fill) ───────────── */
.card { padding: 32px; border: 1px solid var(--divider); }
.card h2 { font-size: 22px; }
.card .copy { margin-top: 16px; }
figure.frame { margin: 0; border: 1px solid var(--divider); }
figure.frame img { display: block; width: 100%; height: auto; object-fit: cover; }
.photo-4x5 { aspect-ratio: 4/5; }
.photo-16x11 { aspect-ratio: 16/11; }

/* ── criteria table ────────────────────────────────── */
.plate { border: 1px solid var(--divider); }
.plate-head {
  padding: 12px 24px; font-size: 13px; line-height: 24px; letter-spacing: 0.08em;
  text-transform: uppercase; font-weight: 600; border-bottom: 1px solid var(--divider);
}
table.criteria { width: 100%; table-layout: fixed; border-collapse: collapse; }
table.criteria th {
  text-align: left; font-size: 13px; letter-spacing: 0.06em; text-transform: uppercase;
  font-weight: 500; color: var(--neutral-700); padding: 12px 24px;
  border-bottom: 1px solid var(--divider);
}
table.criteria td {
  padding: 16px 24px; font-size: 15px; line-height: 26px; color: var(--muted);
  border-bottom: 1px solid var(--divider); vertical-align: top;
}
table.criteria tr:last-child td { border-bottom: 0; }
table.criteria td.num { font-family: var(--font-display); font-weight: 500; font-size: 16px; color: var(--accent-700); }
table.criteria td.crit { color: var(--text); }
table.criteria td.val { font-family: var(--font-display); font-weight: 500; font-size: 19px; color: var(--text); }

/* ── links row & footer ────────────────────────────── */
.links { display: flex; align-items: center; gap: 16px; font-family: var(--font-display); font-weight: 500; font-size: 14px; }
.links a { color: var(--accent-700); }
.links .sep { color: var(--divider); }
footer {
  padding: 48px 0; font-size: 13px; line-height: 24px; color: color-mix(in srgb, var(--text) 70%, transparent);
  border-top: 1px solid var(--divider); display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px;
}

/* ── mobile ────────────────────────────────────────── */
@media (max-width: 720px) {
  .cells { grid-template-columns: 1fr; }
  .split, .split--text-first, .split--bio {
    grid-template-columns: 1fr; gap: 32px; padding-top: 8px; padding-bottom: 56px;
  }
  .split > figure { order: -1; width: 100%; max-width: 100%; justify-self: stretch; }
  .section, .section--hero { padding-top: 56px; padding-bottom: 56px; }
  h1 { font-size: 30px; line-height: 1.2; }
  h2 { font-size: 25px; }
  .copy, table.criteria td { font-size: 16px; line-height: 27px; }
  .lead { font-size: 18px; line-height: 29px; margin-top: 24px; }
  .nav { position: sticky; top: 0; z-index: 20; flex-wrap: nowrap; padding-inline: 20px; }
  .nav-toggle {
    display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 5px;
    width: 44px; height: 44px; margin-left: 12px; padding: 0;
    background: none; border: 1px solid var(--divider); cursor: pointer;
  }
  .nav-toggle span { display: block; width: 18px; height: 1px; background: var(--text); }
  .nav-toggle[aria-expanded='true'] span:nth-child(1) { transform: translateY(3px) rotate(45deg); }
  .nav-toggle[aria-expanded='true'] span:nth-child(2) { opacity: 0; }
  .nav-toggle[aria-expanded='true'] span:nth-child(3) { transform: translateY(-3px) rotate(-45deg); }
  .nav-links {
    display: none; position: absolute; left: 0; right: 0; top: 100%;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--bg); border-bottom: 1px solid var(--divider); padding: 4px 20px 12px;
  }
  .nav-links.is-open { display: flex; }
  .nav a, .links a { font-size: 16px; min-height: 44px; display: flex; align-items: center; }
  footer { flex-direction: column; row-gap: 6px; padding: 36px 0 44px; }
  table.criteria thead { display: none; }
  table.criteria, table.criteria tbody, table.criteria tr, table.criteria td { display: block; width: 100%; }
  table.criteria tr { padding: 18px 0; border-bottom: 1px solid var(--divider); }
  table.criteria tr:last-child { border-bottom: 0; }
  table.criteria td { border: 0; padding: 3px 22px; }
  table.criteria td.num { display: none; }
  table.criteria td.crit { font-size: 13px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--neutral-700); }
  table.criteria td.val { font-size: 24px; line-height: 32px; }
}