:root {
  --navy: #1D3A5C;
  --ink: #0E2138;
  --paper: #F4F6F8;
  --white: #FFFFFF;
  --green: #1F7A5C;
  --amber: #C8843A;
  --slate: #5B6C7F;
  --hair: #DCE3EA;

  --display: "Fraunces", Georgia, serif;
  --body: "Karla", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --measure: 68ch;
  --gutter: clamp(1.25rem, 5vw, 4rem);
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: var(--body);
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: var(--display);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0;
}

a { color: var(--navy); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--green); }

:focus-visible {
  outline: 3px solid var(--amber);
  outline-offset: 3px;
  border-radius: 2px;
}

.wrap {
  max-width: 1080px;
  margin: 0 auto;
  padding-inline: var(--gutter);
}

/* ---------- masthead ---------- */

.masthead {
  background: var(--navy);
  color: var(--white);
  padding-block: 1.5rem;
}

.masthead .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--white);
  text-decoration: none;
  font-family: var(--display);
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.brand svg { display: block; width: 34px; height: 34px; }

.masthead nav {
  display: flex;
  gap: 1.5rem;
  font-size: 0.9rem;
}

.masthead nav a {
  color: rgba(255,255,255,0.78);
  text-decoration: none;
}

.masthead nav a:hover { color: var(--white); }

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

.hero {
  background: var(--navy);
  color: var(--white);
  padding-block: clamp(3rem, 9vw, 6.5rem) clamp(3.5rem, 10vw, 7rem);
}

.eyebrow {
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--amber);
  margin: 0 0 1.25rem;
  font-weight: 700;
}

.hero h1 {
  font-size: clamp(2.4rem, 6.5vw, 4.1rem);
  max-width: 16ch;
  color: var(--white);
}

.hero p.lede {
  max-width: 52ch;
  margin: 1.5rem 0 0;
  font-size: clamp(1.05rem, 2.2vw, 1.2rem);
  color: rgba(255,255,255,0.82);
}

/* ---------- the fork: signature element ---------- */

.fork {
  margin-top: clamp(2.5rem, 7vw, 4rem);
  max-width: 760px;
}

.fork svg { width: 100%; height: auto; display: block; }

.fork-line {
  fill: none;
  stroke: rgba(255,255,255,0.32);
  stroke-width: 2;
  stroke-linecap: round;
}

.fork-line--lit { stroke: var(--amber); stroke-width: 2.5; }

.fork-node { fill: var(--navy); stroke: rgba(255,255,255,0.5); stroke-width: 2; }
.fork-node--end { fill: var(--green); stroke: var(--green); }

.fork text {
  font-family: var(--body);
  fill: var(--white);
  font-size: 15px;
  font-weight: 600;
}

.fork text.sub {
  fill: rgba(255,255,255,0.6);
  font-size: 12.5px;
  font-weight: 400;
}

@media (prefers-reduced-motion: no-preference) {
  .fork-draw {
    stroke-dasharray: 1000;
    stroke-dashoffset: 1000;
    animation: draw 1.6s cubic-bezier(0.4, 0, 0.2, 1) 0.3s forwards;
  }
  @keyframes draw { to { stroke-dashoffset: 0; } }
}

/* ---------- phases ---------- */

.section { padding-block: clamp(3.5rem, 9vw, 6rem); }

.section-head {
  max-width: var(--measure);
  margin-bottom: clamp(2rem, 5vw, 3rem);
}

.section-head h2 { font-size: clamp(1.8rem, 4.2vw, 2.6rem); }
.section-head p { color: var(--slate); max-width: 56ch; margin: 1rem 0 0; }

.phases {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--hair);
}

.phase {
  display: grid;
  grid-template-columns: 4.5rem 1fr;
  gap: 0 1.5rem;
  padding-block: 1.6rem;
  border-bottom: 1px solid var(--hair);
  align-items: baseline;
}

.phase-num {
  font-family: var(--display);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--navy);
  opacity: 0.35;
  font-variant-numeric: tabular-nums;
}

.phase h3 { font-size: 1.25rem; margin-bottom: 0.4rem; }
.phase p { margin: 0; color: var(--slate); max-width: 58ch; }

/* ---------- paths ---------- */

.paths {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
}

.path {
  background: var(--white);
  border: 1px solid var(--hair);
  border-radius: 10px;
  padding: 1.75rem;
}

.path-tag {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--green);
  display: block;
  margin-bottom: 0.85rem;
}

.path-tag--alt { color: var(--amber); }

.path h3 { font-size: 1.35rem; margin-bottom: 0.6rem; }
.path p { color: var(--slate); margin: 0 0 1rem; }

.path ul { margin: 0; padding-left: 1.1rem; color: var(--slate); }
.path li { margin-bottom: 0.4rem; }

/* ---------- beta band ---------- */

.band {
  background: var(--ink);
  color: var(--white);
  padding-block: clamp(3rem, 8vw, 5rem);
}

.band h2 { color: var(--white); font-size: clamp(1.7rem, 4vw, 2.4rem); max-width: 20ch; }
.band p { color: rgba(255,255,255,0.78); max-width: 54ch; }

.btn {
  display: inline-block;
  margin-top: 1.75rem;
  background: var(--amber);
  color: var(--ink);
  font-weight: 700;
  font-size: 0.98rem;
  padding: 0.85rem 1.75rem;
  border-radius: 6px;
  text-decoration: none;
  transition: transform 0.15s ease, background 0.15s ease;
}

.btn:hover { background: #DFA057; color: var(--ink); transform: translateY(-1px); }

.band .fine { font-size: 0.85rem; color: rgba(255,255,255,0.5); margin-top: 1.25rem; }

/* ---------- legal pages ---------- */

.legal { padding-block: clamp(2.5rem, 7vw, 4.5rem); }
.legal .wrap { max-width: 780px; }
.legal h1 { font-size: clamp(2rem, 5vw, 2.9rem); margin-bottom: 0.5rem; }
.legal .updated { color: var(--slate); font-size: 0.9rem; margin: 0 0 2.5rem; }
.legal h2 { font-size: 1.35rem; margin: 2.5rem 0 0.75rem; }
.legal h3 { font-size: 1.05rem; font-family: var(--body); font-weight: 700; margin: 1.5rem 0 0.4rem; }
.legal p, .legal li { color: #2C3E52; }
.legal ul { padding-left: 1.2rem; }
.legal li { margin-bottom: 0.45rem; }

.callout {
  background: var(--white);
  border-left: 3px solid var(--amber);
  border-radius: 0 8px 8px 0;
  padding: 1.25rem 1.5rem;
  margin: 2rem 0;
}

.callout p { margin: 0; }

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

.footer {
  background: var(--navy);
  color: rgba(255,255,255,0.62);
  padding-block: 2.5rem;
  font-size: 0.88rem;
}

.footer .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2rem;
  justify-content: space-between;
  align-items: center;
}

.footer a { color: rgba(255,255,255,0.82); text-decoration: none; }
.footer a:hover { color: var(--white); text-decoration: underline; }
.footer nav { display: flex; gap: 1.5rem; flex-wrap: wrap; }

@media (max-width: 620px) {
  .masthead nav { display: none; }
  .phase { grid-template-columns: 2.75rem 1fr; gap: 0 1rem; }
}