:root {
  --bg: #f2ede3;
  --bg-strong: #e5dccb;
  --surface: rgba(20, 27, 24, 0.9);
  --surface-soft: rgba(20, 27, 24, 0.75);
  --card: rgba(255, 250, 240, 0.62);
  --card-border: rgba(17, 24, 22, 0.12);
  --text: #111714;
  --muted: rgba(17, 23, 20, 0.72);
  --accent: #0f766e;
  --accent-soft: rgba(15, 118, 110, 0.14);
  --line: rgba(17, 23, 20, 0.12);
  --white: #fffef8;
  --shadow: 0 24px 80px rgba(17, 23, 20, 0.12);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --radius-sm: 999px;
  --max-width: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Manrope", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(15, 118, 110, 0.16), transparent 28%),
    radial-gradient(circle at 80% 15%, rgba(201, 98, 55, 0.14), transparent 24%),
    linear-gradient(180deg, #f7f3ea 0%, var(--bg) 54%, #ede3d3 100%);
  color: var(--text);
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
}

.page-shell {
  position: relative;
  overflow: hidden;
}

.ambient {
  position: fixed;
  inset: auto;
  width: 36rem;
  height: 36rem;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.4;
  pointer-events: none;
  z-index: 0;
}

.ambient-left {
  top: -10rem;
  left: -12rem;
  background: rgba(15, 118, 110, 0.18);
}

.ambient-right {
  top: 18rem;
  right: -12rem;
  background: rgba(201, 98, 55, 0.18);
}

.site-header,
.section {
  position: relative;
  z-index: 1;
  width: min(calc(100% - 2rem), var(--max-width));
  margin: 0 auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 2.4rem;
  height: 2.4rem;
  border: 1px solid rgba(17, 23, 20, 0.16);
  border-radius: 50%;
  background: rgba(255, 254, 248, 0.55);
  backdrop-filter: blur(18px);
}

.site-nav {
  display: inline-flex;
  align-items: center;
  gap: 1.25rem;
  padding: 0.7rem 1rem;
  border: 1px solid rgba(17, 23, 20, 0.08);
  border-radius: var(--radius-sm);
  background: rgba(255, 254, 248, 0.55);
  backdrop-filter: blur(18px);
}

.site-nav a {
  color: var(--muted);
  font-size: 0.95rem;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--text);
}

.section {
  padding: 4rem 0;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.95fr);
  gap: 2rem;
  padding-top: 4rem;
  padding-bottom: 5rem;
  align-items: stretch;
}

.hero-copy,
.hero-panel,
.section-band,
.thesis-panel,
.contact-card {
  position: relative;
}

.eyebrow {
  margin: 0 0 1rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent);
}

.hero h1,
.section-heading h2,
.thesis-panel h2,
.contact-card h2 {
  margin: 0;
  letter-spacing: -0.055em;
  line-height: 0.95;
}

.hero h1 {
  font-size: clamp(3.5rem, 8vw, 7rem);
  max-width: 12ch;
}

.serif {
  font-family: "Instrument Serif", serif;
  font-style: italic;
  font-weight: 400;
}

.hero-text,
.principle-card p,
.lab-card p,
.thesis-item p,
.contact-card p,
.signal-card p {
  color: var(--muted);
  line-height: 1.65;
  font-size: 1.02rem;
}

.hero-text {
  max-width: 58ch;
  margin: 1.6rem 0 0;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3.25rem;
  padding: 0.9rem 1.3rem;
  border-radius: var(--radius-sm);
  font-weight: 700;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
}

.button-primary {
  background: var(--text);
  color: var(--white);
  box-shadow: 0 14px 34px rgba(17, 23, 20, 0.18);
}

.button-secondary {
  background: rgba(255, 254, 248, 0.5);
  color: var(--text);
  border: 1px solid rgba(17, 23, 20, 0.1);
}

.hero-panel {
  min-height: 100%;
}

.panel-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  height: 100%;
}

.signal-card,
.metric-card,
.principle-card,
.lab-card,
.thesis-panel,
.thesis-item,
.contact-card {
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  background: rgba(255, 252, 246, 0.56);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.signal-card,
.metric-card {
  min-height: 220px;
  padding: 1.35rem;
}

.signal-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background:
    linear-gradient(180deg, rgba(255, 252, 246, 0.7), rgba(255, 248, 237, 0.48)),
    repeating-linear-gradient(
      90deg,
      rgba(17, 23, 20, 0.04) 0,
      rgba(17, 23, 20, 0.04) 1px,
      transparent 1px,
      transparent 40px
    );
}

.signal-card h2 {
  margin: 0;
  font-size: 1.65rem;
  letter-spacing: -0.04em;
  line-height: 1.08;
}

.signal-card-small {
  min-height: auto;
}

.signal-label,
.lab-tag {
  display: inline-flex;
  width: fit-content;
  padding: 0.45rem 0.7rem;
  border-radius: var(--radius-sm);
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.metric-card {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  background: var(--surface);
  color: var(--white);
}

.metric-number {
  font-size: clamp(3rem, 5vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.06em;
  line-height: 0.95;
}

.metric-label {
  margin-top: 0.5rem;
  color: rgba(255, 254, 248, 0.75);
  font-size: 0.95rem;
}

.section-band {
  margin: 1rem auto;
  padding: 2.75rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: rgba(255, 252, 246, 0.48);
  backdrop-filter: blur(18px);
}

.section-heading {
  display: grid;
  gap: 1rem;
  max-width: 50rem;
}

.section-heading h2,
.thesis-panel h2,
.contact-card h2 {
  font-size: clamp(2.2rem, 5vw, 4.2rem);
}

.principles {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 2.5rem;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 2.5rem;
}

.principle-card,
.lab-card {
  padding: 1.5rem;
}

.principle-card h3,
.lab-card h3 {
  margin: 1rem 0 0.85rem;
  font-size: 1.3rem;
  letter-spacing: -0.04em;
}

.card-index {
  color: var(--accent);
  font-weight: 800;
  font-size: 0.95rem;
}

.lab-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 2.5rem;
}

.lab-card {
  min-height: 280px;
  background:
    linear-gradient(180deg, rgba(255, 252, 246, 0.78), rgba(245, 238, 224, 0.64)),
    radial-gradient(circle at top right, rgba(15, 118, 110, 0.12), transparent 36%);
}

.thesis-section {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  gap: 1rem;
  align-items: stretch;
}

.thesis-panel,
.contact-card {
  padding: 2rem;
}

.thesis-list {
  display: grid;
  gap: 1rem;
}

.thesis-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  align-items: start;
  padding: 1.4rem;
}

.thesis-item span {
  color: var(--accent);
  font-weight: 800;
}

.thesis-item p {
  margin: 0;
}

.contact-section {
  padding-bottom: 5rem;
}

.faq-list {
  display: grid;
  gap: 1rem;
  margin-top: 2.5rem;
}

.faq-item {
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  background: rgba(255, 252, 246, 0.56);
  box-shadow: var(--shadow);
  padding: 1.2rem 1.35rem;
}

.faq-item summary {
  cursor: pointer;
  list-style: none;
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item p {
  margin: 0.85rem 0 0;
  color: var(--muted);
  line-height: 1.65;
}

.contact-card {
  display: grid;
  gap: 1rem;
  text-align: center;
  justify-items: center;
}

.contact-card p {
  margin: 0;
  max-width: 48ch;
}

.location-note {
  font-size: 0.9rem;
  color: var(--muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity 700ms ease,
    transform 700ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 980px) {
  .hero,
  .thesis-section,
  .principles,
  .services-grid,
  .lab-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 2rem;
  }

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

  .signal-card,
  .metric-card,
  .lab-card {
    min-height: auto;
  }
}

@media (max-width: 720px) {
  .site-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }

  .site-nav {
    width: 100%;
    justify-content: space-between;
    gap: 0.75rem;
  }

  .section {
    width: min(calc(100% - 1.25rem), var(--max-width));
    padding: 2.8rem 0;
  }

  .section-band,
  .thesis-panel,
  .contact-card {
    padding: 1.6rem;
  }

  .hero h1 {
    max-width: 9ch;
  }

  .hero-actions {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }
}