:root {
  --ink: #17211b;
  --muted: #5c6a61;
  --paper: #f7f3e8;
  --card: rgba(255, 252, 243, 0.86);
  --line: rgba(23, 33, 27, 0.14);
  --moss: #2f5d46;
  --clay: #bd6b3f;
  --sand: #e3c27a;
  --shadow: 0 24px 80px rgba(29, 42, 34, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "Fraunces", "Georgia", serif;
  background:
    radial-gradient(circle at 12% 8%, rgba(227, 194, 122, 0.5), transparent 32rem),
    radial-gradient(circle at 88% 12%, rgba(189, 107, 63, 0.22), transparent 28rem),
    linear-gradient(135deg, #f8f0df 0%, #edf2e6 56%, #f6efe4 100%);
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
  background-image:
    linear-gradient(rgba(23, 33, 27, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 33, 27, 0.035) 1px, transparent 1px);
  background-size: 34px 34px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.7), transparent 72%);
}

a {
  color: var(--moss);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

.page {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  gap: 32px;
  align-items: center;
  min-height: 92vh;
  padding: 64px 0 40px;
}

.eyebrow {
  display: inline-flex;
  width: fit-content;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--moss);
  font-family: "Space Grotesk", "Trebuchet MS", sans-serif;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: rgba(255, 255, 255, 0.5);
}

h1 {
  max-width: 900px;
  margin: 22px 0 18px;
  font-size: clamp(2.75rem, 7vw, 6.8rem);
  line-height: 0.88;
  letter-spacing: -0.065em;
}

.subtitle {
  max-width: 780px;
  margin: 18px 0 0;
  color: var(--muted);
  font-family: "Space Grotesk", "Trebuchet MS", sans-serif;
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  line-height: 1.55;
}

.authors {
  max-width: 860px;
  font-family: "Space Grotesk", "Trebuchet MS", sans-serif;
}

.authors p {
  margin: 0;
}

.author-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  color: var(--ink);
  font-size: clamp(1rem, 1.8vw, 1.25rem);
  font-weight: 700;
}

.affiliations,
.email-line {
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.94rem;
  line-height: 1.55;
}

.affiliations span,
.email-line span {
  margin: 0 8px;
  color: rgba(23, 33, 27, 0.35);
}

sup {
  font-size: 0.65em;
  line-height: 0;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  color: var(--ink);
  font-family: "Space Grotesk", "Trebuchet MS", sans-serif;
  font-weight: 700;
  text-decoration: none;
  background: var(--sand);
  box-shadow: 4px 4px 0 var(--ink);
  transition: transform 160ms ease, box-shadow 160ms ease;
}

.button:hover {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 var(--ink);
}

.button.secondary {
  background: #fff9ea;
}

.hero-card {
  position: relative;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: var(--card);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.hero-card::before {
  position: absolute;
  inset: auto -48px -48px auto;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  content: "";
  background: rgba(47, 93, 70, 0.15);
}

.meter {
  display: grid;
  gap: 18px;
  margin-top: 6px;
}

.meter-row {
  font-family: "Space Grotesk", "Trebuchet MS", sans-serif;
}

.meter-label {
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 700;
}

.meter-track {
  height: 18px;
  border: 1px solid rgba(23, 33, 27, 0.26);
  border-radius: 999px;
  background: #eadfc8;
  overflow: hidden;
}

.meter-fill {
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--clay), var(--moss));
}

.section {
  margin: 36px 0;
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: 30px;
  background: var(--card);
  box-shadow: 0 16px 50px rgba(29, 42, 34, 0.08);
}

.section h2 {
  margin: 0 0 14px;
  font-size: clamp(2rem, 4vw, 3.2rem);
  line-height: 1;
  letter-spacing: -0.04em;
}

.section p {
  color: var(--muted);
  font-family: "Space Grotesk", "Trebuchet MS", sans-serif;
  font-size: 1rem;
  line-height: 1.7;
}

.pipeline {
  width: 100%;
  margin-top: 18px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: #fff;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.stat {
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.48);
}

.stat strong {
  display: block;
  margin-bottom: 6px;
  font-size: 1.35rem;
}

.stat span {
  color: var(--muted);
  font-family: "Space Grotesk", "Trebuchet MS", sans-serif;
  font-size: 0.95rem;
}

.demo-table {
  display: grid;
  gap: 18px;
}

.demo-case {
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.45);
}

.demo-case h3 {
  margin: 0 0 16px;
  font-size: 1.5rem;
}

.audio-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 12px;
}

.audio-card {
  padding: 14px;
  border: 1px solid rgba(23, 33, 27, 0.12);
  border-radius: 16px;
  background: #fffaf0;
}

.audio-card span {
  display: block;
  min-height: 38px;
  margin-bottom: 10px;
  color: var(--muted);
  font-family: "Space Grotesk", "Trebuchet MS", sans-serif;
  font-size: 0.82rem;
  font-weight: 700;
  line-height: 1.25;
}

audio {
  width: 100%;
  height: 36px;
}

.footer {
  padding: 32px 0 56px;
  color: var(--muted);
  font-family: "Space Grotesk", "Trebuchet MS", sans-serif;
  text-align: center;
}

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .grid,
  .audio-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 24px;
  }
}