:root {
  --bg: #F5F2EC;
  --bg-deep: #EDE9DF;
  --ink: #1A1A1A;
  --ink-2: #3A332C;
  --ink-3: #6B6259;
  --accent: #C2603E;
  --accent-soft: rgba(194, 96, 62, 0.10);
  --rule: rgba(26, 26, 26, 0.10);

  --font-serif: 'Newsreader', 'Source Serif 4', Georgia, 'Times New Roman', serif;
  --font-sans: 'Karla', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --pad-x: clamp(1.5rem, 5vw, 5rem);
  --max-w: 64rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--bg);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.18s ease;
}

a:hover {
  color: var(--accent);
}

/* ──────────────────────────────── Masthead ──────────────────────────────── */

.masthead {
  padding: 1.75rem var(--pad-x) 0;
}

.masthead-inner {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  max-width: var(--max-w);
  margin: 0 auto;
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 1.15rem;
  letter-spacing: 0.005em;
  font-style: italic;
  text-decoration: none;
  color: inherit;
}

.brand-dot {
  width: 0.85em;
  height: 0.85em;
  flex-shrink: 0;
  display: inline-block;
  vertical-align: -0.05em;
}

.brand-dot-footer {
  width: 0.7em;
  height: 0.7em;
  margin-right: 0.35em;
  vertical-align: -0.05em;
}

.masthead nav {
  display: flex;
  gap: 2rem;
  font-size: 0.92rem;
  color: var(--ink-3);
  letter-spacing: 0.02em;
}

/* ──────────────────────────────── Hero ──────────────────────────────── */

.hero {
  padding: clamp(5rem, 14vw, 11rem) var(--pad-x) clamp(6rem, 14vw, 10rem);
}

.hero-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  animation: fade-in 1.1s cubic-bezier(0.16, 1, 0.3, 1) 0.05s both;
}

.kicker {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 2rem;
}

.lead {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(2.5rem, 6.5vw, 4.75rem);
  line-height: 1.05;
  letter-spacing: -0.018em;
  color: var(--ink);
  max-width: 22ch;
  margin-bottom: 2.5rem;
}

.lead em {
  font-style: italic;
  color: var(--accent);
  font-feature-settings: "ss01" 1;
}

.dek {
  font-family: var(--font-sans);
  font-size: clamp(1.05rem, 1.8vw, 1.2rem);
  line-height: 1.65;
  color: var(--ink-2);
  max-width: 42rem;
  margin-bottom: 4rem;
}

.hero-mark {
  display: block;
  width: clamp(160px, 22vw, 240px);
  height: auto;
  color: var(--accent);
  opacity: 0.7;
}

/* ──────────────────────────────── Rules + section labels ──────────────────────────────── */

.rule {
  height: 1px;
  background: var(--rule);
  max-width: var(--max-w);
  margin: 0 auto;
}

.section-label {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 3rem;
}

/* ──────────────────────────────── Approach ──────────────────────────────── */

.approach {
  padding: clamp(4rem, 10vw, 7rem) var(--pad-x);
  background: var(--bg);
}

.approach-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

.approach-prose {
  max-width: 44rem;
  margin-bottom: clamp(3rem, 6vw, 5rem);
}

.opener {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 400;
  line-height: 1.35;
  letter-spacing: -0.005em;
  color: var(--ink);
  margin-bottom: 1.5rem;
}

.approach-prose p:not(.opener) {
  font-size: clamp(1.02rem, 1.5vw, 1.1rem);
  line-height: 1.7;
  color: var(--ink-2);
}

.pillars {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: clamp(2rem, 4vw, 3rem);
  padding-top: 1rem;
  border-top: 1px solid var(--rule);
}

.pillar {
  padding-top: 1.75rem;
}

.pillar-num {
  display: block;
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1rem;
  color: var(--accent);
  margin-bottom: 0.6rem;
  letter-spacing: 0.04em;
}

.pillar h3 {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 1.35rem;
  letter-spacing: -0.005em;
  color: var(--ink);
  margin-bottom: 0.75rem;
}

.pillar p {
  font-size: 0.98rem;
  line-height: 1.65;
  color: var(--ink-2);
}

/* ──────────────────────────────── Research ──────────────────────────────── */

.research {
  padding: clamp(4rem, 8vw, 6rem) var(--pad-x);
  background: var(--bg-deep);
}

.research-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

.research-empty {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(1.1rem, 2vw, 1.3rem);
  line-height: 1.55;
  color: var(--ink-3);
  max-width: 38rem;
}

/* ──────────────────────────────── Footer ──────────────────────────────── */

footer {
  padding: 3rem var(--pad-x) 3.5rem;
  background: var(--bg);
  border-top: 1px solid var(--rule);
}

.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-mark {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--ink-2);
}

.footer-meta {
  font-size: 0.82rem;
  color: var(--ink-3);
  letter-spacing: 0.04em;
}

/* ──────────────────────────────── Motion ──────────────────────────────── */

@keyframes fade-in {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .hero-inner { animation: none; }
}

/* ──────────────────────────────── Responsive ──────────────────────────────── */

@media (max-width: 540px) {
  .masthead nav {
    gap: 1.25rem;
    font-size: 0.85rem;
  }
  .pillars {
    grid-template-columns: 1fr;
  }
}