/* ============================================================
   willsun.win — design system
   Hand-written, zero dependencies, one file.
   Accent #1F4E79 is lifted from Will's own CV, for continuity.
   ============================================================ */

:root {
  --bg:        #FBFAF8;
  --surface:   #FFFFFF;
  --ink:       #111418;
  --ink-soft:  #3D464F;
  --muted:     #6B7480;
  --line:      #E5E2DC;
  --line-soft: #F0EEE9;
  --accent:    #1F4E79;
  --accent-in: #163A5A;

  --maxw: 1080px;
  --pad: 28px;
  --r: 3px;

  --sans: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI",
          Inter, Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas,
          "Liberation Mono", monospace;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.62;
  font-feature-settings: "kern" 1, "liga" 1, "calt" 1;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

/* ---------- type ---------- */

h1, h2, h3, h4 {
  font-weight: 600;
  letter-spacing: -0.021em;
  line-height: 1.14;
  margin: 0 0 .5em;
}

h1 { font-size: clamp(2.35rem, 6.2vw, 4rem); letter-spacing: -0.035em; }
h2 { font-size: clamp(1.45rem, 3.1vw, 1.95rem); }
h3 { font-size: 1.075rem; letter-spacing: -0.012em; }
h4 { font-size: .82rem; }

p { margin: 0 0 1.15em; max-width: 66ch; }
p.lead {
  font-size: clamp(1.06rem, 2.1vw, 1.28rem);
  color: var(--ink-soft);
  max-width: 60ch;
}

a {
  color: var(--accent);
  text-decoration: none;
  text-underline-offset: 3px;
}
a:hover { text-decoration: underline; }

strong { font-weight: 600; }

.eyebrow {
  font-family: var(--mono);
  font-size: .715rem;
  letter-spacing: .13em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 .85em;
}

.muted { color: var(--muted); }
.small { font-size: .895rem; }

hr {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 0;
}

/* ---------- header ---------- */

header.site {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(251, 250, 248, .88);
  backdrop-filter: saturate(150%) blur(11px);
  -webkit-backdrop-filter: saturate(150%) blur(11px);
  border-bottom: 1px solid var(--line-soft);
}

header.site .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 66px;
}

.brand {
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: -0.015em;
  color: var(--ink);
  white-space: nowrap;
}
.brand:hover { text-decoration: none; color: var(--accent); }

nav.main { display: flex; gap: 26px; flex-wrap: wrap; }
nav.main a {
  font-size: .885rem;
  color: var(--ink-soft);
  letter-spacing: -0.005em;
  padding: 3px 0;
  border-bottom: 1.5px solid transparent;
}
nav.main a:hover { color: var(--ink); text-decoration: none; }
nav.main a[aria-current="page"] {
  color: var(--ink);
  font-weight: 550;
  border-bottom-color: var(--accent);
}

/* ---------- layout ---------- */

section.band { padding: clamp(44px, 6.4vw, 76px) 0; }
section.band + section.band { border-top: 1px solid var(--line-soft); }

.grid {
  display: grid;
  gap: clamp(20px, 3.4vw, 34px);
}
.grid.three { grid-template-columns: repeat(3, 1fr); }
.grid.two   { grid-template-columns: repeat(2, 1fr); }

/* ---------- hero ---------- */

/* Hero top clears the 66px sticky header with room to breathe, while the bottom
   stays deliberately tighter than .band's top padding — otherwise the two stack
   into one ~200px empty gap, which reads as a layout fault rather than as air. */
.hero { padding: clamp(60px, 8.5vw, 108px) 0 clamp(34px, 4.5vw, 58px); }

.hero h1 { margin-bottom: .28em; }

.hero .sub {
  font-size: clamp(1.04rem, 2.35vw, 1.36rem);
  color: var(--ink-soft);
  /* 40ch broke "Global Product Management · Business Development" onto two lines
     on desktop; 52ch keeps the positioning line intact. */
  max-width: 52ch;
  margin-bottom: .55em;
  letter-spacing: -0.012em;
}

.hero .where {
  font-family: var(--mono);
  font-size: .775rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 2.1em;
}

.hero .claim {
  font-size: clamp(1.25rem, 3.1vw, 1.85rem);
  font-weight: 600;
  letter-spacing: -0.028em;
  color: var(--accent);
  margin-bottom: 2.3em;
}

/* ---------- buttons ---------- */

.actions { display: flex; flex-wrap: wrap; gap: 11px; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 10px 19px;
  border: 1px solid var(--line);
  border-radius: var(--r);
  background: var(--surface);
  color: var(--ink);
  font-size: .9rem;
  font-weight: 500;
  letter-spacing: -0.006em;
  transition: border-color .16s ease, background .16s ease,
              color .16s ease, transform .16s ease;
}
.btn:hover {
  text-decoration: none;
  border-color: var(--accent);
  color: var(--accent);
}
.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.btn.primary:hover {
  background: var(--accent-in);
  border-color: var(--accent-in);
  color: #fff;
}
.btn[aria-disabled="true"] {
  color: var(--muted);
  border-style: dashed;
  cursor: not-allowed;
  pointer-events: none;
}

/* ---------- cards ---------- */

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: clamp(22px, 3vw, 30px);
  transition: border-color .18s ease, transform .18s ease,
              box-shadow .18s ease;
}
a.card:hover, .card.hoverable:hover {
  text-decoration: none;
  border-color: #CFD6DE;
  transform: translateY(-2px);
  box-shadow: 0 8px 26px -14px rgba(17, 20, 24, .17);
}

.card h3 { margin-bottom: .22em; }
.card .kicker {
  font-family: var(--mono);
  font-size: .69rem;
  letter-spacing: .13em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 .75em;
}
.card p:last-child { margin-bottom: 0; }

/* ---------- lists ---------- */

ul.tags {
  list-style: none;
  margin: 1.15em 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}
ul.tags li {
  font-size: .795rem;
  color: var(--ink-soft);
  background: #F4F2EE;
  border: 1px solid var(--line-soft);
  border-radius: 100px;
  padding: 3.5px 11px;
  letter-spacing: -0.004em;
  line-height: 1.5;
}

ul.plain { margin: .3em 0 0; padding-left: 1.15em; }
ul.plain li { margin-bottom: .42em; max-width: 64ch; }

/* ---------- CV ---------- */

.cv-entry {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 4px 20px;
  padding: 1.45em 0;
  border-top: 1px solid var(--line-soft);
}
.cv-entry:first-of-type { border-top: 1px solid var(--line); }
.cv-entry .role-t {
  font-weight: 600;
  font-size: 1.015rem;
  letter-spacing: -0.012em;
}
.cv-entry .org { color: var(--accent); font-size: .94rem; }
.cv-entry .when {
  font-family: var(--mono);
  font-size: .775rem;
  color: var(--muted);
  white-space: nowrap;
  padding-top: .28em;
}
.cv-entry .body { grid-column: 1 / -1; margin-top: .55em; }
.cv-entry .body p { margin-bottom: .5em; }
.cv-entry .body ul { margin: .4em 0 0; padding-left: 1.15em; }
.cv-entry .body li { margin-bottom: .3em; max-width: 68ch; font-size: .945rem; }

/* ---------- dl for CV facts ---------- */

dl.facts {
  margin: 0;
  display: grid;
  grid-template-columns: 168px 1fr;
  gap: 13px 24px;
  align-items: baseline;
}
dl.facts dt {
  font-family: var(--mono);
  font-size: .73rem;
  letter-spacing: .075em;
  text-transform: uppercase;
  color: var(--muted);
}
dl.facts dd { margin: 0; }

/* ---------- notice ---------- */

.notice {
  border-left: 2.5px solid var(--accent);
  background: #F6F8FA;
  padding: 15px 20px;
  border-radius: 0 var(--r) var(--r) 0;
  font-size: .92rem;
  color: var(--ink-soft);
}
.notice p:last-child { margin-bottom: 0; }

/* ---------- footer ---------- */

footer.site {
  border-top: 1px solid var(--line);
  padding: 42px 0 54px;
  font-size: .875rem;
  color: var(--muted);
}
footer.site .wrap {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
  align-items: center;
}
footer.site a { color: var(--ink-soft); }

/* ---------- skip link ---------- */

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent);
  color: #fff;
  padding: 10px 16px;
  z-index: 100;
}
.skip:focus { left: 0; }

:focus-visible {
  outline: 2.5px solid var(--accent);
  outline-offset: 2px;
}

/* ---------- responsive ---------- */

@media (max-width: 900px) {
  .grid.three { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 720px) {
  :root { --pad: 20px; }
  body { font-size: 16px; }

  header.site .wrap {
    min-height: auto;
    padding-top: 13px;
    padding-bottom: 11px;
    flex-direction: column;
    align-items: flex-start;
    gap: 9px;
  }
  nav.main { gap: 17px; }
  nav.main a { font-size: .845rem; }

  .grid.three, .grid.two { grid-template-columns: 1fr; }

  .cv-entry { grid-template-columns: 1fr; gap: 2px; }
  .cv-entry .when { padding-top: 0; }

  dl.facts { grid-template-columns: 1fr; gap: 3px 0; }
  dl.facts dd { margin-bottom: .85em; }

  footer.site .wrap { flex-direction: column; align-items: flex-start; }
}

@media print {
  header.site, footer.site, .actions { display: none; }
  body { background: #fff; font-size: 11.5pt; }
  section.band { padding: 14px 0; }
}