:root {
  --paper: #F7F5F1;
  --paper-raised: #FFFFFF;
  --ink: #16264A;
  --ink-soft: #24365E;
  --brass: #E2A63B;
  --brass-dim: #C98A28;
  --slate: #5B6472;
  --signal: #2451C4;
  --signal-soft: #DCE7FB;
  --coral: #E2694A;
  --teal2: #2CA6A4;
  --line: #DAD4C6;
  --display: 'Fraunces', serif;
  --body: 'Public Sans', sans-serif;
  --mono: 'IBM Plex Mono', monospace;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}

a { color: inherit; }
img, svg { display: block; max-width: 100%; }

.wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }

/* ---------- Nav ---------- */
header.site {
  position: sticky; top: 0; z-index: 50;
  background: rgba(246,244,239,0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 24px;
}
.logo {
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(0.95rem, 2.4vw, 1.15rem);
  letter-spacing: -0.01em;
  display: flex; align-items: center; gap: 8px;
  white-space: nowrap;
  text-decoration: none;
}
.logo .mark {
  flex-shrink: 0;
  display: block;
}
header .logo .mark { width: 34px; height: 34px; }
footer .logo .mark { width: 26px; height: 26px; }
nav.links { display: flex; gap: 28px; font-size: 0.92rem; font-weight: 500; }
nav.links a { text-decoration: none; color: var(--ink-soft); position: relative; }
nav.links a:hover { color: var(--ink); }
nav.links a.active { color: var(--ink); }
nav.links a.active::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: -6px;
  height: 2px; background: var(--signal); border-radius: 2px;
}
nav.links a:focus-visible, .btn:focus-visible, .card:focus-visible {
  outline: 2px solid var(--signal); outline-offset: 3px;
}
@media (max-width: 720px) { nav.links { display: none; } }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--body); font-weight: 600; font-size: 0.9rem;
  padding: 11px 20px; border-radius: 3px;
  text-decoration: none; cursor: pointer; border: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.btn-primary { background: var(--ink); color: var(--paper-raised); }
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 4px 14px rgba(28,43,69,0.25); }
.btn-ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.btn-ghost:hover { border-color: var(--ink); }

/* ---------- Hero ---------- */
.hero { padding: 88px 0 40px; }
.eyebrow {
  font-family: var(--mono); font-size: 0.78rem; text-transform: uppercase;
  letter-spacing: 0.12em; color: var(--brass-dim);
  display: flex; align-items: center; gap: 10px; margin-bottom: 22px;
}
.eyebrow::before { content: ''; width: 22px; height: 1px; background: var(--brass-dim); }

h1 {
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(2.2rem, 5.5vw, 3.6rem);
  line-height: 1.06;
  letter-spacing: -0.02em;
  max-width: 15ch;
  color: var(--ink);
}
h1 em { font-style: italic; color: var(--signal); font-weight: 500; }

.hero-sub {
  margin-top: 22px; max-width: 46ch;
  font-size: 1.1rem; color: var(--slate); line-height: 1.6;
}
.hero-ctas { display: flex; gap: 14px; margin-top: 34px; flex-wrap: wrap; }

/* Page header (non-home pages) */
.page-head { padding: 64px 0 8px; }
.page-head h1 { font-size: clamp(1.9rem, 4.4vw, 2.8rem); max-width: 22ch; }
.page-head .hero-sub { margin-top: 18px; }

/* Spectrum bar — signature element */
.spectrum {
  margin-top: 64px;
  border: 1px solid var(--line);
  background: var(--paper-raised);
  border-radius: 4px;
  padding: 22px 20px 18px;
}
.spectrum-label {
  font-family: var(--mono); font-size: 0.72rem; text-transform: uppercase;
  letter-spacing: 0.1em; color: var(--slate); margin-bottom: 16px;
}
.spectrum-track {
  position: relative;
  height: 3px; background: var(--line); border-radius: 2px;
  margin: 0 4px;
}
.spectrum-fill {
  position: absolute; inset: 0;
  background: linear-gradient(90deg, var(--signal), var(--brass));
  border-radius: 2px;
  transform-origin: left;
  animation: fillIn 1.4s cubic-bezier(.16,1,.3,1) 0.2s both;
}
@keyframes fillIn { from { transform: scaleX(0); } to { transform: scaleX(1); } }
.spectrum-points {
  display: flex; justify-content: space-between; margin-top: 14px;
}
.spectrum-point { text-align: center; flex: 1; }
.spectrum-point .dot {
  width: 9px; height: 9px; border-radius: 50%;
  margin: 0 auto 8px;
  border: 2px solid var(--paper-raised);
  box-shadow: 0 0 0 1px var(--line);
}
.spectrum-point:nth-child(1) .dot { background: var(--signal); }
.spectrum-point:nth-child(2) .dot { background: var(--coral); }
.spectrum-point:nth-child(3) .dot { background: var(--brass); }
.spectrum-point:nth-child(4) .dot { background: var(--teal2); }
.spectrum-point:nth-child(5) .dot { background: var(--ink); }
.spectrum-point span {
  font-size: 0.74rem; font-weight: 600; color: var(--ink-soft);
  display: block;
}
@media (max-width: 640px) {
  .spectrum-point span { font-size: 0.62rem; }
}

/* ---------- Section shared ---------- */
section { padding: 88px 0; }
.section-head { max-width: 60ch; margin-bottom: 48px; }
.section-tag {
  font-family: var(--mono); font-size: 0.75rem; color: var(--signal);
  text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 12px;
  font-weight: 500;
}
h2 {
  font-family: var(--display); font-weight: 600;
  font-size: clamp(1.7rem, 3.4vw, 2.4rem);
  letter-spacing: -0.01em; color: var(--ink);
}
.section-desc { margin-top: 14px; color: var(--slate); font-size: 1.02rem; }

.divider { border: none; border-top: 1px solid var(--line); }

/* ---------- Case files (Who We Help) ---------- */
.cases { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
@media (max-width: 780px) { .cases { grid-template-columns: 1fr; } }

.case-card {
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-left: 4px solid var(--signal);
  border-radius: 5px;
  padding: 28px;
  position: relative;
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.case-card:nth-of-type(1) { border-left-color: var(--signal); }
.case-card:nth-of-type(2) { border-left-color: var(--coral); }
.case-card:nth-of-type(3) { border-left-color: var(--brass); }
.case-card:nth-of-type(4) { border-left-color: var(--teal2); }
.case-card:nth-of-type(5) { border-left-color: var(--ink); }
.case-card:hover { border-color: var(--brass); transform: translateY(-2px); }
.case-card:nth-of-type(1):hover { border-left-color: var(--signal); }
.case-card:nth-of-type(2):hover { border-left-color: var(--coral); }
.case-card:nth-of-type(3):hover { border-left-color: var(--brass); }
.case-card:nth-of-type(4):hover { border-left-color: var(--teal2); }
.case-card:nth-of-type(5):hover { border-left-color: var(--ink); }

.case-ref {
  font-family: var(--mono); font-size: 0.72rem; color: var(--slate);
  letter-spacing: 0.06em; margin-bottom: 14px;
  display: flex; justify-content: space-between; align-items: center;
}
.stamp {
  font-family: var(--mono); font-size: 0.62rem; font-weight: 500;
  color: var(--signal); border: 1px solid var(--signal);
  border-radius: 20px; padding: 3px 9px;
  letter-spacing: 0.08em; text-transform: uppercase;
  transform: rotate(-2deg);
  background: var(--signal-soft);
}
.case-card h3 {
  font-family: var(--display); font-weight: 600; font-size: 1.25rem;
  margin-bottom: 10px; color: var(--ink);
}
.case-card p { color: var(--slate); font-size: 0.95rem; }

/* ---------- Solve tracks ---------- */
.tracks { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 5px; overflow: hidden; }
@media (max-width: 780px) { .tracks { grid-template-columns: 1fr; } }
.track { background: var(--paper); padding: 36px 32px; }
.track-icon {
  width: 40px; height: 40px; border-radius: 50%;
  color: var(--paper); background: var(--signal);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--display); font-weight: 600; font-size: 1.1rem;
  margin-bottom: 20px;
}
.track:nth-of-type(2) .track-icon { background: var(--brass-dim); }
.track h3 { font-family: var(--display); font-size: 1.35rem; font-weight: 600; margin-bottom: 12px; }
.track p { color: var(--slate); margin-bottom: 18px; }
.track ul { list-style: none; }
.track li {
  font-size: 0.92rem; color: var(--ink-soft); padding: 9px 0;
  border-top: 1px dashed var(--line);
  display: flex; gap: 10px; align-items: baseline;
}
.track li:first-of-type { border-top: none; }
.track li::before { content: '—'; color: var(--brass); flex-shrink: 0; }

/* ---------- How we work ---------- */
.steps { display: flex; flex-direction: column; gap: 0; }
.step {
  display: grid; grid-template-columns: 70px 1fr; gap: 20px;
  padding: 26px 0; border-top: 1px solid var(--line);
}
.step:last-child { border-bottom: 1px solid var(--line); }
.step-num { font-family: var(--mono); color: var(--brass-dim); font-size: 0.85rem; padding-top: 3px; }
.step h4 { font-family: var(--display); font-size: 1.1rem; font-weight: 600; margin-bottom: 6px; }
.step p { color: var(--slate); font-size: 0.95rem; max-width: 56ch; }

/* ---------- CTA ---------- */
.cta-band {
  background: var(--ink); color: var(--paper);
  border-radius: 8px; padding: 56px 44px;
  position: relative; overflow: hidden;
}
.cta-band::before {
  content: ''; position: absolute; top: -60px; right: -60px;
  width: 220px; height: 220px; border-radius: 50%;
  background: radial-gradient(circle, rgba(226,166,59,0.28), transparent 70%);
}
.cta-band::after {
  content: ''; position: absolute; bottom: -80px; left: -40px;
  width: 240px; height: 240px; border-radius: 50%;
  background: radial-gradient(circle, rgba(44,166,164,0.22), transparent 70%);
}
.cta-band h2 { color: var(--paper); max-width: 20ch; }
.cta-band p { color: #B9C2D4; margin-top: 14px; max-width: 42ch; font-size: 1.02rem; }
.cta-band .hero-ctas { margin-top: 28px; }
.cta-band .btn-primary { background: var(--brass); color: var(--ink); }
.cta-band .btn-primary:hover { box-shadow: 0 4px 14px rgba(184,134,46,0.35); }
.cta-band .btn-ghost { border-color: rgba(255,255,255,0.3); color: var(--paper); }
.cta-band .btn-ghost:hover { border-color: var(--paper); }

/* ---------- Teasers (home page section links) ---------- */
.teasers { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 780px) { .teasers { grid-template-columns: 1fr; } }
.teaser {
  background: var(--paper-raised); border: 1px solid var(--line);
  border-top: 4px solid var(--signal);
  border-radius: 5px;
  padding: 28px; text-decoration: none; display: block;
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.teaser:nth-of-type(1) { border-top-color: var(--signal); }
.teaser:nth-of-type(2) { border-top-color: var(--brass); }
.teaser:nth-of-type(3) { border-top-color: var(--coral); }
.teaser:hover { transform: translateY(-2px); }
.teaser h3 { font-family: var(--display); font-size: 1.2rem; font-weight: 600; margin-bottom: 8px; color: var(--ink); }
.teaser p { color: var(--slate); font-size: 0.92rem; }
.teaser .go { margin-top: 14px; font-family: var(--mono); font-size: 0.72rem; color: var(--signal); text-transform: uppercase; letter-spacing: 0.08em; }

/* ---------- Forms ---------- */
.form-card {
  background: var(--paper-raised); border: 1px solid var(--line);
  border-radius: 5px; padding: 32px; max-width: 640px;
}
.field { margin-bottom: 18px; }
.field label {
  display: block; font-size: 0.85rem; font-weight: 600;
  color: var(--ink-soft); margin-bottom: 6px;
}
.field input, .field select, .field textarea {
  width: 100%; font-family: var(--body); font-size: 0.95rem;
  padding: 11px 13px; border: 1px solid var(--line); border-radius: 4px;
  background: var(--paper); color: var(--ink);
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: 2px solid var(--signal); outline-offset: 1px; border-color: var(--signal);
}
.field textarea { resize: vertical; min-height: 110px; }
.form-note { font-size: 0.82rem; color: var(--slate); margin-top: 14px; }

.newsletter {
  background: var(--paper-raised); border: 1px solid var(--line);
  border-radius: 5px; padding: 32px; display: flex; flex-wrap: wrap;
  gap: 20px; align-items: center; justify-content: space-between;
}
.newsletter-copy { flex: 1; min-width: 220px; }
.newsletter-copy h3 { font-family: var(--display); font-size: 1.2rem; font-weight: 600; margin-bottom: 6px; }
.newsletter-copy p { color: var(--slate); font-size: 0.92rem; }
.newsletter-form { display: flex; gap: 10px; flex-wrap: wrap; }
.newsletter-form input[type="email"] {
  font-family: var(--body); font-size: 0.92rem; padding: 11px 13px;
  border: 1px solid var(--line); border-radius: 4px; background: var(--paper);
  color: var(--ink); min-width: 220px;
}
.newsletter-form input[type="email"]:focus {
  outline: 2px solid var(--signal); outline-offset: 1px; border-color: var(--signal);
}

/* ---------- Legal page ---------- */
.legal h2 { margin-top: 40px; margin-bottom: 12px; font-size: 1.3rem; }
.legal h2:first-of-type { margin-top: 0; }
.legal p, .legal li { color: var(--slate); font-size: 0.98rem; margin-bottom: 12px; }
.legal ul { padding-left: 20px; }
.legal .updated { font-family: var(--mono); font-size: 0.78rem; color: var(--slate); margin-bottom: 32px; }

/* ---------- Footer ---------- */
footer {
  border-top: 1px solid var(--line);
  padding: 40px 0;
  display: flex; justify-content: space-between; align-items: center;
  font-size: 0.85rem; color: var(--slate); flex-wrap: wrap; gap: 12px;
}
footer .logo { font-size: 1rem; }
footer nav.links a { display: block; }
.footer-links { display: flex; gap: 20px; }
.footer-links a { text-decoration: none; color: var(--slate); }
.footer-links a:hover { color: var(--ink); }

/* reveal on scroll */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.in { opacity: 1; transform: translateY(0); }