/* Markus Sullivan — site styles. Tokens from the "Modernist" design system export. */

/* Archivo is a variable font (weights 100–900): one file per character subset. */
@font-face { font-family: "Archivo"; font-style: normal; font-weight: 100 900; font-stretch: 100%; font-display: swap;
  src: url("fonts/archivo-vietnamese.woff2") format("woff2");
  unicode-range: U+0102-0103, U+0110-0111, U+0128-0129, U+0168-0169, U+01A0-01A1, U+01AF-01B0, U+0300-0301, U+0303-0304, U+0308-0309, U+0323, U+0329, U+1EA0-1EF9, U+20AB; }
@font-face { font-family: "Archivo"; font-style: normal; font-weight: 100 900; font-stretch: 100%; font-display: swap;
  src: url("fonts/archivo-latin-ext.woff2") format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF; }
@font-face { font-family: "Archivo"; font-style: normal; font-weight: 100 900; font-stretch: 100%; font-display: swap;
  src: url("fonts/archivo-latin.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }

:root {
  color-scheme: light;
  --color-bg: #f3f2f2;
  --color-surface: #eae9e9;
  --color-text: #201e1d;
  --color-accent: #ec3013;
  --color-divider: color-mix(in srgb, #201e1d 40%, transparent);
  --color-neutral-100: #f8f4f4; --color-neutral-700: #605d5d; --color-neutral-800: #444141;
  --color-accent-100: #fff2ef; --color-accent-600: #dd2b0f; --color-accent-700: #ae1800; --color-accent-800: #7c1405;
  --font: "Archivo", system-ui, -apple-system, "Segoe UI", sans-serif;
  --shadow-md: 0 3px 10px color-mix(in srgb, #2d2b2b 16%, transparent);
  --shadow-lg: 0 12px 32px color-mix(in srgb, #2d2b2b 22%, transparent);
  --gutter: 40px;
  --header-h: 64px;
}
[data-theme="dark"] {
  color-scheme: dark;
  --color-bg: #141312; --color-surface: #1f1d1c; --color-text: #f3f2f2; --color-accent: #ff563c;
  --color-divider: color-mix(in srgb, #f3f2f2 30%, transparent);
  --color-neutral-100: #2d2b2b; --color-neutral-700: #d7d3d3; --color-neutral-800: #eae7e7;
  --color-accent-100: #4d170e; --color-accent-600: #ff9783; --color-accent-700: #ffc4b8; --color-accent-800: #ffe0d9;
  --shadow-md: 0 0 0 1px color-mix(in srgb, #f3f2f2 12%, transparent), 0 4px 14px rgba(0,0,0,.5);
  --shadow-lg: 0 0 0 1px color-mix(in srgb, #f3f2f2 14%, transparent), 0 14px 36px rgba(0,0,0,.6);
}

/* ── Base ─────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: calc(var(--header-h) + 16px); }
body {
  margin: 0; background: var(--color-bg); color: var(--color-text);
  font-family: var(--font); font-size: 15px; line-height: 1.55; font-weight: 400;
  transition: background .2s, color .2s;
}
h1, h2, h3 { font-weight: 800; line-height: 1.1; letter-spacing: -0.025em; margin: 0; text-wrap: balance; }
p { margin: 0; text-wrap: pretty; }
ul, ol, dl, dd { margin: 0; padding: 0; }
ul, ol { list-style: none; }
img { display: block; max-width: 100%; height: auto; }
a { color: var(--color-accent-700); text-underline-offset: 3px; }
a:hover { color: var(--color-accent); }
:focus { outline: none; }
:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }
::selection { background: color-mix(in srgb, var(--color-accent) 30%, transparent); }
.wrap { max-width: 1280px; margin: 0 auto; padding-inline: var(--gutter); }
.grid-12 { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 24px; }
.eyebrow { font-size: 12px; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--color-accent-700); }
.muted { color: var(--color-neutral-800); }
.rule-top { border-top: 2px solid var(--color-divider); }
.skip { position: absolute; left: -9999px; top: 8px; z-index: 50; background: var(--color-text); color: var(--color-bg); padding: 8px 14px; }
.skip:focus { left: 8px; }
.grayscale { filter: grayscale(1) contrast(1.08); }

/* ── Buttons ──────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: space-between; gap: 12px;
  font-family: var(--font); font-weight: 800; font-size: 15px; line-height: 1.2;
  padding: 14px 18px; min-height: 48px; text-decoration: none; cursor: pointer;
  color: var(--color-text); background: transparent; border: 1px solid transparent; border-radius: 0;
}
.btn svg { flex: none; }
.btn-primary { background: var(--color-accent); color: var(--color-bg); }
.btn-primary:hover { background: var(--color-accent-600); color: var(--color-bg); }
[data-theme="dark"] .btn-primary:hover { background: #dd2b0f; }
.btn-secondary { border-color: var(--color-divider); color: var(--color-text); }
.btn-secondary:hover { background: color-mix(in srgb, var(--color-text) 7%, transparent); color: var(--color-text); }
.btn-ghost { color: var(--color-accent); padding-inline: 4px; min-height: 0; }
.btn-ghost:hover { background: color-mix(in srgb, var(--color-accent) 10%, transparent); }
.btn-inverse { background: var(--color-bg); color: var(--color-text); }
.btn-inverse:hover { background: color-mix(in srgb, var(--color-bg) 88%, var(--color-text)); color: var(--color-text); }
.btn-sm { font-size: 14px; padding: 8px 14px; min-height: 40px; min-width: 150px; }
.btn-wide { min-width: 220px; }
.btn-icon { width: 40px; height: 40px; min-height: 0; padding: 0; justify-content: center; }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; }
.btn-stack { display: flex; flex-direction: column; gap: 12px; }

/* ── Header ───────────────────────────────────────────────────────────── */
.site-header { position: sticky; top: 0; z-index: 10; background: var(--color-bg); border-bottom: 2px solid var(--color-divider); }
.header-inner { height: var(--header-h); display: flex; align-items: center; gap: 28px; }
.brand { display: flex; align-items: center; gap: 10px; margin-right: auto; font-weight: 800; font-size: 18px; letter-spacing: -0.01em; color: var(--color-text); text-decoration: none; white-space: nowrap; }
.brand:hover { color: var(--color-text); }
.brand-mark { width: 14px; height: 14px; background: var(--color-accent); flex: none; }
.site-nav { display: flex; align-items: stretch; height: var(--header-h); gap: 4px; }
.site-nav a {
  display: flex; align-items: center; padding: 0 14px; font-size: 14px; font-weight: 600;
  color: var(--color-neutral-700); text-decoration: none; border-bottom: 2px solid transparent; margin-bottom: -2px;
}
.site-nav a:hover { background: color-mix(in srgb, var(--color-text) 6%, transparent); color: var(--color-text); }
.site-nav a[aria-current="page"] { color: var(--color-text); border-bottom-color: var(--color-accent); }
.header-actions { display: flex; align-items: center; gap: 12px; }
.menu-toggle { display: none; }
.theme-toggle .icon-moon { display: block; } .theme-toggle .icon-sun { display: none; }
[data-theme="dark"] .theme-toggle .icon-moon { display: none; } [data-theme="dark"] .theme-toggle .icon-sun { display: block; }

/* ── Home ─────────────────────────────────────────────────────────────── */
.hero { background: var(--color-accent); color: var(--color-bg); }
.hero-inner { padding-top: 56px; padding-bottom: 48px; display: flex; flex-direction: column; gap: 56px; }
.hero-kicker { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 24px; font-size: 14px; font-weight: 600; border-bottom: 2px solid var(--color-bg); padding-bottom: 14px; }
.hero h1 { font-size: clamp(52px, 9vw, 116px); line-height: 0.94; letter-spacing: -0.045em; max-width: 1120px; }
.intro { padding-top: 48px; padding-bottom: 64px; }
.intro-text { grid-column: span 7; font-size: 24px; line-height: 1.4; letter-spacing: -0.01em; }
.intro-actions { grid-column: 9 / span 4; }
.intro-actions .btn { width: 100%; }
.metrics { padding-bottom: 72px; }
.metrics-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 24px; }
.metric { border-top: 2px solid var(--color-text); padding-top: 16px; display: flex; flex-direction: column; gap: 10px; }
.metric-value { font-weight: 800; font-size: 52px; letter-spacing: -0.035em; line-height: 1; color: var(--color-accent); }
.metric-label { font-size: 14px; line-height: 1.45; color: var(--color-neutral-800); }
.section { padding-top: 56px; padding-bottom: 72px; display: flex; flex-direction: column; gap: 24px; }
.section h2 { font-size: 36px; }
.case-list { border-top: 2px solid var(--color-divider); }
.case-row {
  display: grid; grid-template-columns: 60px minmax(0, 4fr) minmax(0, 3fr) 120px 24px; gap: 24px; align-items: baseline;
  padding: 22px 0; border-bottom: 1px solid var(--color-divider); color: var(--color-text); text-decoration: none;
}
.case-row:hover { background: color-mix(in srgb, var(--color-accent) 7%, transparent); color: var(--color-text); }
.case-num { font-size: 14px; font-weight: 600; color: var(--color-accent-700); }
.case-title { font-weight: 800; font-size: 22px; letter-spacing: -0.015em; line-height: 1.2; }
.case-client { font-size: 15px; color: var(--color-neutral-800); }
.case-years { font-size: 14px; color: var(--color-neutral-700); }
.book-band { background: var(--color-surface); border-top: 2px solid var(--color-divider); }
.book-band-inner { padding-top: 56px; padding-bottom: 56px; align-items: center; }
.book-band .eyebrow { grid-column: span 2; font-size: 13px; }
.book-band h2 { grid-column: span 7; font-size: 36px; line-height: 1.08; }
.book-band-action { grid-column: span 3; }
.book-band-action .btn { width: 100%; }

/* ── Page heads ───────────────────────────────────────────────────────── */
.page-head { padding-top: 64px; padding-bottom: 48px; align-items: end; }
.page-head h1 { grid-column: span 7; font-size: clamp(44px, 6vw, 64px); line-height: 1; letter-spacing: -0.035em; }
.page-head p { grid-column: span 5; font-size: 17px; color: var(--color-neutral-800); }

/* ── Work ─────────────────────────────────────────────────────────────── */
.cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; padding-bottom: 72px; }
.card {
  display: flex; flex-direction: column; gap: 14px; padding: 28px; background: var(--color-surface);
  border-top: 2px solid var(--color-accent); transition: box-shadow .15s;
}
.card:hover, .card:target { box-shadow: var(--shadow-md); }
.card:target { outline: 2px solid var(--color-accent); outline-offset: 0; }
.card-meta { display: flex; justify-content: space-between; gap: 16px; font-size: 12px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--color-accent-700); }
.card-meta span:last-child { white-space: nowrap; }
.card h2 { font-size: 24px; letter-spacing: -0.015em; line-height: 1.2; }
.card-client { font-size: 15px; font-weight: 600; }
.points { display: flex; flex-direction: column; gap: 8px; font-size: 14px; line-height: 1.5; color: var(--color-neutral-800); }
.points li { display: grid; grid-template-columns: 14px minmax(0, 1fr); gap: 8px; }
.points li::before { content: ""; width: 8px; height: 2px; background: var(--color-accent); margin-top: 10px; }
.tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: auto; padding-top: 6px; }
.tag { display: inline-flex; align-items: center; font-size: 11px; letter-spacing: 0.02em; padding: 3px 10px; background: var(--color-neutral-100); color: var(--color-neutral-800); }
.split { padding-top: 56px; padding-bottom: 80px; }
.split > h2 { grid-column: span 4; font-size: 32px; }
.split > .split-body { grid-column: span 8; }
.timeline { border-top: 2px solid var(--color-divider); }
.timeline li { display: grid; grid-template-columns: 120px minmax(0, 1fr) minmax(0, 1fr); gap: 24px; padding: 18px 0; border-bottom: 1px solid var(--color-divider); font-size: 15px; }
.timeline .t-years { font-weight: 600; color: var(--color-accent-700); }
.timeline .t-role { font-weight: 600; }
.timeline .t-org { color: var(--color-neutral-800); }

/* ── Writing ──────────────────────────────────────────────────────────── */
.book { padding-top: 64px; padding-bottom: 72px; align-items: start; }
.book-cover { grid-column: span 4; }
.book-cover img { width: 100%; box-shadow: var(--shadow-lg); }
.book-text { grid-column: 6 / span 7; display: flex; flex-direction: column; gap: 22px; padding-top: 12px; }
.book-text h1 { font-size: clamp(40px, 5vw, 56px); line-height: 1.02; letter-spacing: -0.035em; }
.book-text p { font-size: 18px; line-height: 1.55; color: var(--color-neutral-800); }
.research { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0 24px; border-top: 2px solid var(--color-divider); }
.research > div { padding: 24px 0 28px; display: flex; flex-direction: column; gap: 12px; }
.research h3 { font-size: 22px; letter-spacing: -0.015em; line-height: 1.2; }
.research p { font-size: 14px; color: var(--color-neutral-800); }

/* ── About ────────────────────────────────────────────────────────────── */
.about { padding-top: 64px; padding-bottom: 72px; }
.about-photo { grid-column: span 4; }
.about-photo img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; background: var(--color-surface); }
.about-text { grid-column: 6 / span 7; display: flex; flex-direction: column; gap: 20px; }
.about-text h1 { font-size: clamp(44px, 6vw, 56px); line-height: 1; letter-spacing: -0.035em; }
.about-text .lead { font-size: 20px; line-height: 1.5; }
.about-text p:not(.lead) { font-size: 16px; line-height: 1.6; color: var(--color-neutral-800); }
.methods { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.methods > div { border-top: 2px solid var(--color-text); padding-top: 14px; display: flex; flex-direction: column; gap: 12px; }
.methods h3 { font-size: 16px; letter-spacing: -0.01em; }
.methods .tags { margin-top: 0; padding-top: 0; }
.certs { border-top: 2px solid var(--color-divider); }
.certs li { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 24px; padding: 16px 0; border-bottom: 1px solid var(--color-divider); font-size: 15px; }
.certs .c-name { font-weight: 600; }
.certs .c-body { color: var(--color-neutral-800); }

/* ── Contact ──────────────────────────────────────────────────────────── */
.contact-head { padding-top: 72px; padding-bottom: 56px; display: flex; flex-direction: column; gap: 20px; }
.contact-head h1 { font-size: clamp(48px, 7vw, 80px); line-height: 0.98; letter-spacing: -0.04em; max-width: 900px; }
.contact-head p { font-size: 19px; max-width: 620px; color: var(--color-neutral-800); }
.tiles { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 2px solid var(--color-divider); border-bottom: 2px solid var(--color-divider); margin-bottom: 96px; }
.tile { padding: 32px 28px 36px; display: flex; flex-direction: column; gap: 48px; color: var(--color-text); text-decoration: none; }
.tile + .tile { border-left: 2px solid var(--color-divider); }
.tile:hover { background: color-mix(in srgb, var(--color-text) 6%, transparent); color: var(--color-text); }
.tile-primary { background: var(--color-accent); color: var(--color-bg); }
.tile-primary:hover { background: var(--color-accent-600); color: var(--color-bg); }
[data-theme="dark"] .tile-primary:hover { background: #dd2b0f; }
.tile-title { display: block; font-weight: 800; font-size: 26px; letter-spacing: -0.02em; line-height: 1.15; }
.tile-sub { display: block; font-size: 15px; margin-top: 6px; }
.tile:not(.tile-primary) .tile-sub { color: var(--color-neutral-800); }

/* ── Footer ───────────────────────────────────────────────────────────── */
.site-footer { border-top: 2px solid var(--color-divider); }
.footer-inner { padding-top: 24px; padding-bottom: 24px; display: flex; flex-wrap: wrap; gap: 12px 24px; align-items: center; font-size: 13px; color: var(--color-neutral-700); }
.footer-inner span { margin-right: auto; }

/* ── 404 ──────────────────────────────────────────────────────────────── */
.notfound { padding-top: 96px; padding-bottom: 120px; display: flex; flex-direction: column; gap: 24px; align-items: flex-start; }
.notfound h1 { font-size: clamp(44px, 7vw, 80px); letter-spacing: -0.04em; }

/* ── Tablet ───────────────────────────────────────────────────────────── */
@media (max-width: 1080px) {
  :root { --gutter: 28px; }
  .header-inner { gap: 16px; }
  .site-nav a { padding: 0 10px; }
  .hero-kicker { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 8px; }
  .intro-text { grid-column: 1 / -1; }
  .intro-actions { grid-column: 1 / -1; }
  .intro-actions.btn-stack { flex-direction: row; flex-wrap: wrap; }
  .intro-actions .btn { width: auto; flex: 1 1 260px; }
  .metrics-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 32px; }
  .case-row { grid-template-columns: 44px minmax(0, 1fr) 100px 20px; }
  .case-client { grid-column: 2; grid-row: 2; }
  .case-years { grid-row: 1; grid-column: 3; }
  .case-row svg { grid-row: 1; grid-column: 4; }
  .book-band .eyebrow, .book-band h2, .book-band-action { grid-column: 1 / -1; }
  .book-band-action .btn { width: auto; min-width: 260px; }
  .page-head h1, .page-head p { grid-column: 1 / -1; }
  .split > h2, .split > .split-body { grid-column: 1 / -1; }
}
/* Collapse the header nav into a menu */
@media (max-width: 900px) {
  .menu-toggle { display: inline-flex; }
  .header-book { display: none; }
  .site-nav {
    display: none; position: absolute; top: var(--header-h); left: 0; right: 0; height: auto;
    flex-direction: column; gap: 0; background: var(--color-bg); border-bottom: 2px solid var(--color-divider);
    padding: 8px var(--gutter) 20px;
  }
  .site-nav.is-open { display: flex; }
  .site-nav a { padding: 14px 0; font-size: 17px; color: var(--color-text); border-bottom: 1px solid var(--color-divider); margin: 0; }
  .site-nav a[aria-current="page"] { border-bottom-color: var(--color-divider); color: var(--color-accent-700); }
  .site-nav .nav-book { display: flex; justify-content: space-between; margin-top: 16px; padding: 14px 18px; border: 0; color: var(--color-bg); }
  .site-nav .nav-book:hover { color: var(--color-bg); }
  .no-js .site-nav { display: flex; position: static; flex-direction: row; flex-wrap: wrap; padding: 0; border: 0; }
}
@media (min-width: 901px) { .site-nav .nav-book { display: none; } }
/* ── Phone ────────────────────────────────────────────────────────────── */
@media (max-width: 720px) {
  :root { --gutter: 20px; --header-h: 60px; }
  body { font-size: 16px; }
  .brand { font-size: 17px; }
  .grid-12 { grid-template-columns: minmax(0, 1fr); gap: 20px; }
  .grid-12 > * { grid-column: 1 / -1 !important; }
  .hero-inner { padding-top: 32px; padding-bottom: 36px; gap: 36px; }
  .hero-kicker { grid-template-columns: minmax(0, 1fr); font-size: 13px; gap: 4px; }
  .intro { padding-top: 32px; padding-bottom: 48px; }
  .intro-text { font-size: 20px; }
  .intro-actions .btn { width: 100%; flex-basis: 100%; }
  .metrics { padding-bottom: 48px; }
  .metrics-grid { gap: 24px 16px; }
  .metric-value { font-size: clamp(26px, 8vw, 36px); white-space: nowrap; }
  .metric-label { font-size: 13px; }
  .section { padding-top: 40px; padding-bottom: 48px; }
  .section h2, .split > h2 { font-size: 28px; }
  .case-row { grid-template-columns: 32px minmax(0, 1fr) 18px; gap: 4px 12px; padding: 18px 0; }
  .case-title { font-size: 18px; }
  .case-client { grid-column: 2; grid-row: 2; font-size: 14px; }
  .case-years { grid-column: 2; grid-row: 3; font-size: 13px; }
  .case-row svg { grid-column: 3; grid-row: 1; }
  .book-band-inner { padding-top: 40px; padding-bottom: 40px; }
  .book-band h2 { font-size: 28px; }
  .book-band-action .btn { width: 100%; min-width: 0; }
  .page-head { padding-top: 40px; padding-bottom: 32px; }
  .cards { grid-template-columns: minmax(0, 1fr); gap: 16px; padding-bottom: 48px; }
  .card { padding: 22px; }
  .card h2 { font-size: 21px; }
  .split { padding-top: 40px; padding-bottom: 56px; }
  .timeline li { grid-template-columns: minmax(0, 1fr); gap: 2px; padding: 14px 0; }
  .book { padding-top: 32px; padding-bottom: 48px; }
  .book-cover { max-width: 280px; }
  .book-text .btn { width: 100%; }
  .research { grid-template-columns: minmax(0, 1fr); }
  .research > div + div { border-top: 1px solid var(--color-divider); }
  .about { padding-top: 32px; padding-bottom: 48px; }
  .about-photo { max-width: 320px; }
  .about-text .lead { font-size: 18px; }
  .methods { grid-template-columns: minmax(0, 1fr); }
  .certs li { grid-template-columns: minmax(0, 1fr); gap: 2px; padding: 14px 0; }
  .contact-head { padding-top: 40px; padding-bottom: 36px; }
  .contact-head p { font-size: 17px; }
  .tiles { grid-template-columns: minmax(0, 1fr); margin-bottom: 56px; }
  .tile { gap: 28px; padding: 24px 20px 28px; }
  .tile + .tile { border-left: 0; border-top: 2px solid var(--color-divider); }
  .tile-title { font-size: 22px; }
  .tile-sub { overflow-wrap: anywhere; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }
@media print {
  .site-header, .site-footer, .btn, .tiles { display: none !important; }
  .hero { background: none; color: #000; }
}