@import url('https://fonts.googleapis.com/css2?family=Work+Sans:wght@400;500;600;700;800;900&display=swap');

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --black: #1A1A1A;
  --white: #FFFFFF;
  --grey: #444444;
  --rule: #E0E0E0;
  --bg: #FFFFFF;

  /* page accent colours */
  --pink:   #E8829A;
  --yellow: #F0A030;
  --blue:   #50C8D0;
  --green:  #9DC87A;
  --purple: #9B7EC8;
}

html { scroll-behavior: smooth; }

body {
  background: var(--white);
  color: var(--black);
  font-family: 'Work Sans', sans-serif;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

p, .body, .cv-block-sub, .step-body, .small {
  color: #2A2A2A;
  font-weight: 500;
}

/* ── NAV ── */
nav {
  position: sticky;
  top: 0;
  z-index: 200;
  background: var(--white);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 56px;
  height: 60px;
  border-bottom: 1.5px solid var(--black);
}

.nav-logo {
  font-size: 18px;
  font-weight: 800;
  color: var(--black);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.nav-logo .colon { color: var(--accent, var(--black)); }

.nav-links {
  display: flex;
  gap: 36px;
  list-style: none;
}

.nav-links a {
  font-size: 12px;
  font-weight: 600;
  color: var(--grey);
  text-decoration: none;
  text-transform: lowercase;
  letter-spacing: 0.01em;
  transition: color 0.15s;
}

.nav-links a:hover,
.nav-links a.active { color: var(--black); }

.nav-links a.active { text-decoration: underline; text-underline-offset: 4px; text-decoration-thickness: 1.5px; }

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-hamburger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--black);
}

.mobile-drawer {
  display: none;
  position: fixed;
  top: 60px;
  left: 0; right: 0;
  background: var(--white);
  padding: 32px 40px;
  z-index: 199;
  flex-direction: column;
  gap: 24px;
  border-bottom: 1.5px solid var(--black);
}

.mobile-drawer.open { display: flex; }

.mobile-drawer a {
  font-size: 16px;
  font-weight: 700;
  color: var(--black);
  text-decoration: none;
  text-transform: lowercase;
}

/* ── PAGE HEADER BLOCK ── */
.page-header {
  background: var(--accent);
  padding: 48px 56px 40px;
}

.page-header-meta {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--black);
  opacity: 0.6;
  margin-bottom: 8px;
  display: block;
}

.page-header h1 {
  font-size: clamp(48px, 8vw, 96px);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 0.95;
  color: var(--black);
}

.page-header p {
  font-size: 15px;
  font-weight: 500;
  color: var(--black);
  opacity: 0.7;
  margin-top: 16px;
  max-width: 560px;
  line-height: 1.6;
}

/* ── SHARED SECTION ── */
.section {
  padding: 56px 56px;
  border-bottom: 0.5px solid var(--rule);
}

.section-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--grey);
  margin-bottom: 24px;
  display: block;
}

/* ── CARDS ── */
.card {
  border-top: 1.5px solid var(--black);
  padding: 20px 0;
}

.card:last-child { border-bottom: 1.5px solid var(--black); }

.card-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 6px;
}

.card h2 {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--black);
}

.card .body {
  font-size: 15px;
  color: var(--grey);
  line-height: 1.65;
  margin-bottom: 10px;
}

.badge {
  display: inline-block;
  background: var(--accent);
  color: var(--black);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 2px;
  flex-shrink: 0;
  margin-left: 12px;
}

.tag {
  display: inline-block;
  border: 1px solid var(--rule);
  color: var(--grey);
  font-size: 10px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 2px;
  margin-right: 4px;
  margin-top: 4px;
}

.stat-num {
  font-size: 42px;
  font-weight: 900;
  letter-spacing: -0.04em;
  color: var(--accent);
  line-height: 1;
  margin: 8px 0 4px;
}

/* ── STAT GRID ── */
.stat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
  margin: 20px 0;
}

.stat-cell {
  background: var(--white);
  padding: 20px;
}

.stat-cell-num {
  font-size: 32px;
  font-weight: 900;
  letter-spacing: -0.03em;
  color: var(--accent);
  line-height: 1;
}

.stat-cell-label {
  font-size: 11px;
  color: var(--grey);
  margin-top: 4px;
  line-height: 1.4;
}

/* ── CV BLOCKS ── */
.cv-block {
  border-top: 0.5px solid var(--rule);
  padding: 14px 0;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
}

.cv-block:last-child { border-bottom: 0.5px solid var(--rule); }

.cv-block-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--black);
  letter-spacing: -0.01em;
}

.cv-block-sub {
  font-size: 12px;
  color: var(--grey);
  margin-top: 2px;
}

.cv-block-year {
  font-size: 11px;
  font-weight: 700;
  color: var(--accent);
  white-space: nowrap;
  flex-shrink: 0;
}

/* ── DOODLE ── */
.doodle {
  display: block;
  pointer-events: none;
  user-select: none;
}

/* ── FOOTER ── */
footer {
  padding: 24px 56px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 11px;
  color: var(--grey);
  border-top: 1.5px solid var(--black);
  flex-wrap: wrap;
  gap: 12px;
}

footer a {
  color: var(--grey);
  text-decoration: none;
  font-weight: 600;
  transition: color 0.15s;
}

footer a:hover { color: var(--black); }

/* ── BACK LINK ── */
.back-link {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  color: var(--black);
  text-decoration: none;
  padding: 56px 56px 0;
}

.back-link:hover { text-decoration: underline; }

/* ── GRAPH PLACEHOLDER ── */
.graph-block {
  background: #F8F8F8;
  border: 0.5px solid var(--rule);
  border-radius: 4px;
  padding: 20px;
  margin-bottom: 12px;
  font-size: 11px;
  color: var(--grey);
  text-align: center;
}

/* ── STEP ROWS ── */
.step-row {
  display: flex;
  gap: 16px;
  padding: 16px 0;
  border-top: 0.5px solid var(--rule);
  align-items: flex-start;
}

.step-row:last-child { border-bottom: 0.5px solid var(--rule); }

.step-num {
  font-size: 10px;
  font-weight: 800;
  color: var(--accent);
  min-width: 24px;
  letter-spacing: 0.05em;
  padding-top: 2px;
}

.step-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--black);
  margin-bottom: 3px;
}

.step-body {
  font-size: 13px;
  color: var(--grey);
  line-height: 1.6;
}

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  nav { padding: 0 20px; }
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }

  .page-header { padding: 32px 20px 28px; }
  .page-header h1 { font-size: clamp(36px, 12vw, 64px); }

  .section { padding: 40px 20px; }
  .back-link { padding: 40px 20px 0; }

  footer { padding: 20px; }

  .stat-grid { grid-template-columns: 1fr; }
}