:root {
  --paper: #f7f2e8;
  --paper-soft: #fbf8f1;
  --ink: #17191c;
  --muted: #596167;
  --line: #d8d0c2;
  --line-strong: #b9ad9a;
  --teal: #0c6665;
  --teal-dark: #063f42;
  --burgundy: #823045;
  --gold: #a47226;
  --white: #fffdf8;
  --shadow: 0 18px 50px rgb(37 30 21 / 16%);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

a {
  color: inherit;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 64px;
  padding: 12px clamp(18px, 4vw, 56px);
  color: var(--white);
  background: linear-gradient(180deg, rgb(15 18 20 / 70%), rgb(15 18 20 / 8%));
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 750;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid rgb(255 253 248 / 62%);
  border-radius: 50%;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 13px;
  letter-spacing: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(12px, 3vw, 28px);
  font-size: 14px;
  font-weight: 700;
}

.nav-links a {
  text-decoration: none;
  opacity: 0.9;
}

.nav-links a:hover {
  opacity: 1;
}

.hero {
  position: relative;
  min-height: 78svh;
  display: grid;
  align-items: end;
  overflow: hidden;
  color: var(--white);
  isolation: isolate;
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-shade {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(90deg, rgb(15 17 18 / 84%) 0%, rgb(15 17 18 / 56%) 42%, rgb(15 17 18 / 18%) 100%),
    linear-gradient(0deg, rgb(18 17 14 / 72%) 0%, rgb(18 17 14 / 0%) 46%);
}

.hero-content {
  width: min(820px, calc(100% - 36px));
  margin: 0 auto;
  padding: 128px 0 clamp(64px, 12vh, 112px);
}

.eyebrow,
.section-kicker {
  margin: 0 0 12px;
  color: var(--gold);
  font-size: 12px;
  font-weight: 850;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero .eyebrow {
  color: #eac37c;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 700;
  line-height: 1.05;
}

h1 {
  margin-bottom: 18px;
  font-size: clamp(56px, 13vw, 132px);
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(32px, 6vw, 62px);
}

h3 {
  margin-bottom: 10px;
  font-size: 24px;
}

.hero-copy {
  max-width: 660px;
  margin-bottom: 28px;
  color: rgb(255 253 248 / 86%);
  font-size: clamp(18px, 2.3vw, 25px);
}

.hero-actions,
.file-actions,
.dialog-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.button,
.small-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease;
}

.button {
  padding: 11px 17px;
}

.small-button {
  min-width: 48px;
  min-height: 34px;
  padding: 7px 10px;
  font-size: 13px;
}

.button:hover,
.small-button:hover,
button:hover {
  transform: translateY(-1px);
}

.primary {
  color: var(--white);
  background: var(--teal);
}

.secondary {
  color: var(--white);
  border-color: rgb(255 253 248 / 58%);
  background: rgb(255 253 248 / 11%);
  backdrop-filter: blur(10px);
}

.ghost {
  color: var(--teal-dark);
  border-color: var(--line);
  background: var(--white);
}

.stats-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.stats-strip > div {
  min-height: 116px;
  padding: 26px clamp(18px, 4vw, 44px);
  background: var(--paper-soft);
}

.stat-value,
.stat-label {
  display: block;
}

.stat-value {
  color: var(--teal-dark);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(31px, 5vw, 50px);
  font-weight: 750;
  line-height: 1;
}

.stat-label {
  margin-top: 8px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

.intro-section,
.explorer-section,
.downloads-section,
.citation-section,
.methods-section {
  padding: clamp(56px, 9vw, 108px) clamp(18px, 5vw, 72px);
}

.intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(300px, 0.7fr);
  gap: clamp(28px, 7vw, 92px);
  align-items: start;
}

.intro-copy {
  color: var(--muted);
  font-size: 18px;
}

.explorer-section {
  background: var(--white);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 26px;
}

.result-count {
  color: var(--burgundy);
  font-weight: 850;
}

.controls {
  display: grid;
  grid-template-columns: minmax(260px, 1.4fr) repeat(4, minmax(150px, 1fr));
  gap: 12px;
  margin-bottom: 18px;
}

label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 850;
  text-transform: uppercase;
}

input,
select {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fffefb;
  color: var(--ink);
  font: inherit;
  font-size: 14px;
  font-weight: 650;
}

input {
  padding: 0 14px;
}

select {
  padding: 0 36px 0 12px;
}

input:focus,
select:focus,
button:focus-visible,
a:focus-visible {
  outline: 3px solid rgb(12 102 101 / 25%);
  outline-offset: 2px;
}

.table-wrap {
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

table {
  width: 100%;
  min-width: 980px;
  border-collapse: collapse;
  background: var(--white);
}

th,
td {
  padding: 15px 16px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  position: sticky;
  top: 0;
  z-index: 1;
  background: #efe6d8;
  color: #473d31;
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

tbody tr {
  transition: background 140ms ease;
}

tbody tr:hover {
  background: #f8f3ea;
}

td:first-child {
  width: 112px;
  font-weight: 850;
}

.paper-title {
  max-width: 520px;
  color: var(--ink);
  font-weight: 780;
}

.paper-meta,
.cell-muted {
  color: var(--muted);
  font-size: 13px;
}

.tag {
  display: inline-flex;
  max-width: 260px;
  padding: 4px 8px;
  border: 1px solid rgb(130 48 69 / 23%);
  border-radius: 999px;
  color: var(--burgundy);
  background: rgb(130 48 69 / 7%);
  font-size: 12px;
  font-weight: 850;
}

.row-action {
  border: 0;
  background: transparent;
  color: var(--teal);
  font: inherit;
  font-weight: 850;
  text-decoration: underline;
  cursor: pointer;
}

.empty-state {
  margin-top: 18px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--muted);
  background: var(--paper-soft);
}

.downloads-section {
  background:
    linear-gradient(90deg, rgb(12 102 101 / 10%), transparent 42%),
    var(--paper);
}

.download-grid,
.method-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 26px;
}

.download-panel,
.method-grid > div {
  min-height: 172px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.download-panel {
  display: grid;
  align-content: start;
  gap: 12px;
  padding: 24px;
  text-decoration: none;
  transition: transform 160ms ease, border-color 160ms ease;
}

.download-panel:hover {
  border-color: var(--teal);
  transform: translateY(-2px);
}

.download-title {
  color: var(--teal-dark);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 25px;
  font-weight: 750;
}

.download-note,
.method-grid p {
  color: var(--muted);
}

.citation-section {
  color: var(--white);
  background: var(--teal-dark);
}

.citation-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(300px, 0.7fr);
  gap: clamp(28px, 7vw, 92px);
  align-items: start;
}

.citation-copy {
  color: rgb(255 253 248 / 82%);
  font-size: 18px;
}

.citation-reference {
  margin-bottom: 0;
  padding-left: 18px;
  border-left: 3px solid #eac37c;
  color: var(--white);
}

.methods-section {
  background: var(--white);
}

.method-grid > div {
  padding: 24px;
}

code {
  padding: 2px 5px;
  border-radius: 5px;
  color: var(--burgundy);
  background: #f3eadf;
  font-size: 0.92em;
}

.trial-dialog {
  width: min(860px, calc(100% - 28px));
  max-height: min(760px, calc(100svh - 32px));
  padding: 0;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  color: var(--ink);
  background: var(--white);
  box-shadow: var(--shadow);
}

.trial-dialog::backdrop {
  background: rgb(16 19 22 / 58%);
}

.dialog-close {
  position: absolute;
  top: 14px;
  right: 14px;
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--white);
  color: var(--ink);
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
}

.dialog-body {
  padding: 34px;
}

.dialog-title {
  max-width: 720px;
  margin-bottom: 10px;
  padding-right: 38px;
  font-size: clamp(29px, 5vw, 46px);
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: 24px 0;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.detail-grid > div {
  min-height: 98px;
  padding: 16px;
  background: var(--paper-soft);
}

.detail-label {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 900;
  text-transform: uppercase;
}

.detail-value {
  color: var(--ink);
  font-weight: 780;
}

.dialog-actions {
  margin-top: 22px;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 28px clamp(18px, 5vw, 72px);
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 1080px) {
  .controls {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .search-control {
    grid-column: 1 / -1;
  }

  .intro-grid,
  .citation-grid,
  .download-grid,
  .method-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .site-header {
    position: absolute;
    align-items: flex-start;
  }

  .nav-links {
    gap: 12px;
    font-size: 13px;
  }

  .hero {
    min-height: 82svh;
  }

  .hero-content {
    width: min(100% - 28px, 820px);
    padding-bottom: 72px;
  }

  .hero-shade {
    background:
      linear-gradient(90deg, rgb(15 17 18 / 88%), rgb(15 17 18 / 42%)),
      linear-gradient(0deg, rgb(18 17 14 / 80%) 0%, rgb(18 17 14 / 0%) 55%);
  }

  .stats-strip,
  .controls,
  .detail-grid {
    grid-template-columns: 1fr;
  }

  .stats-strip > div {
    min-height: 88px;
  }

  .section-heading,
  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .intro-section,
  .explorer-section,
  .downloads-section,
  .citation-section,
  .methods-section {
    padding-left: 14px;
    padding-right: 14px;
  }

  .dialog-body {
    padding: 24px 18px;
  }
}