@font-face {
  font-family: "Tektur";
  src: url("assets/fonts/Tektur-Medium.ttf") format("truetype");
  font-display: swap;
}

@font-face {
  font-family: "Instrument Sans";
  src: url("assets/fonts/InstrumentSans-Regular.ttf") format("truetype");
  font-display: swap;
}

@font-face {
  font-family: "Instrument Serif";
  src: url("assets/fonts/InstrumentSerif-Regular.ttf") format("truetype");
  font-display: swap;
}

:root {
  --paper: #f5f1e8;
  --paper-deep: #efe7d9;
  --ink: #1f2527;
  --ink-soft: #556267;
  --teal: #17464b;
  --teal-deep: #0f3034;
  --line: rgba(23, 70, 75, 0.18);
  --line-strong: rgba(23, 70, 75, 0.32);
  --accent: #d9732f;
  --accent-soft: rgba(217, 115, 47, 0.14);
  --surface: rgba(255, 250, 241, 0.86);
  --surface-strong: rgba(255, 250, 241, 0.94);
  --shadow: 0 24px 60px rgba(31, 37, 39, 0.1);
  --max-width: 1240px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  font-family: "Instrument Sans", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(217, 115, 47, 0.1), transparent 32%),
    radial-gradient(circle at 88% 8%, rgba(23, 70, 75, 0.12), transparent 26%),
    linear-gradient(180deg, #f7f2e9 0%, #f0e8dc 54%, #efe6d7 100%);
}

body::before,
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
}

body::before {
  background-image:
    linear-gradient(rgba(23, 70, 75, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 70, 75, 0.06) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.65), transparent 82%);
}

body::after {
  background:
    linear-gradient(90deg, transparent 0 8%, rgba(23, 70, 75, 0.08) 8% 8.1%, transparent 8.1% 91.9%, rgba(23, 70, 75, 0.08) 91.9% 92%, transparent 92%),
    linear-gradient(180deg, transparent 0 5rem, rgba(23, 70, 75, 0.08) 5rem 5.05rem, transparent 5.05rem);
  opacity: 0.45;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
}

button,
a,
details {
  transition: transform 160ms ease, color 160ms ease, border-color 160ms ease, background-color 160ms ease, box-shadow 160ms ease;
}

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  top: -4rem;
  left: 1rem;
  z-index: 20;
  padding: 0.8rem 1rem;
  border-radius: 999px;
  background: var(--teal);
  color: #fff;
}

.skip-link:focus {
  top: 1rem;
}

.page-shell {
  width: min(var(--max-width), calc(100% - 2rem));
  margin: 0 auto;
  padding-bottom: 4rem;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 12;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1rem 0 0.9rem;
}

.topbar.is-scrolled {
  backdrop-filter: blur(18px);
}

.topbar::after {
  content: "";
  position: absolute;
  inset: 0 -1rem;
  border-bottom: 1px solid transparent;
  z-index: -1;
  transition: background-color 160ms ease, border-color 160ms ease;
}

.topbar.is-scrolled::after {
  background: rgba(245, 241, 232, 0.82);
  border-color: rgba(23, 70, 75, 0.1);
}

.brand {
  display: inline-flex;
  align-items: center;
  max-width: 24rem;
}

.brand img {
  width: 100%;
  height: auto;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.75rem;
}

.nav a {
  padding: 0.72rem 1rem;
  text-decoration: none;
  font-family: "Tektur", sans-serif;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border: 1px solid rgba(23, 70, 75, 0.12);
  border-radius: 999px;
  background: rgba(255, 250, 241, 0.56);
  color: var(--ink-soft);
}

.nav a:hover,
.nav a[aria-current="true"] {
  color: var(--ink);
  border-color: rgba(217, 115, 47, 0.45);
  background: rgba(255, 250, 241, 0.92);
}

.section {
  margin-top: 4rem;
}

.panel {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--surface-strong), var(--surface));
  box-shadow: var(--shadow);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  gap: 1.5rem;
  align-items: stretch;
}

.hero-copy,
.hero-panel,
.finding-card,
.checklist-card,
.benchmark-table,
.note-card,
.use-card,
.faq-list details,
.source-card {
  border-radius: 1.75rem;
}

.hero-copy,
.hero-panel {
  position: relative;
  overflow: hidden;
}

.hero-copy {
  padding: 3rem;
}

.hero-copy::before,
.hero-panel::before,
.benchmark-table::before {
  content: "";
  position: absolute;
  inset: 1rem;
  border: 1px solid rgba(23, 70, 75, 0.08);
  border-radius: calc(1.75rem - 0.5rem);
  pointer-events: none;
}

.hero-copy::after {
  content: "";
  position: absolute;
  right: -4rem;
  top: -4rem;
  width: 18rem;
  height: 18rem;
  border-radius: 50%;
  background:
    radial-gradient(circle, rgba(217, 115, 47, 0.28) 0 12%, transparent 12% 100%),
    radial-gradient(circle, rgba(23, 70, 75, 0.18) 0 50%, transparent 50% 100%);
  filter: blur(0.3px);
  opacity: 0.75;
}

.hero-panel {
  padding: 2rem;
  background:
    linear-gradient(180deg, rgba(255, 250, 241, 0.98), rgba(244, 235, 224, 0.88)),
    repeating-linear-gradient(90deg, rgba(23, 70, 75, 0.03) 0 1px, transparent 1px 46px);
}

.eyebrow {
  margin: 0 0 0.9rem;
  color: var(--accent);
  font-family: "Tektur", sans-serif;
  font-size: 0.8rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  font-family: "Instrument Serif", serif;
  font-weight: 400;
  line-height: 0.98;
}

h1 {
  max-width: 9ch;
  font-size: clamp(3.4rem, 7vw, 6rem);
}

h2 {
  max-width: 18ch;
  font-size: clamp(2.1rem, 4vw, 3.4rem);
}

h3 {
  font-size: clamp(1.45rem, 2vw, 2rem);
}

p {
  margin: 0;
  line-height: 1.7;
}

code {
  padding: 0.14rem 0.4rem;
  border: 1px solid rgba(23, 70, 75, 0.12);
  border-radius: 999px;
  background: rgba(23, 70, 75, 0.06);
  font-family: "Tektur", sans-serif;
  font-size: 0.88em;
  color: var(--teal-deep);
}

.hero-dek,
.section-heading p:last-child,
.finding-card p,
.checklist-card p,
.note-card p,
.use-lead,
.source-card p,
.footer p,
.status-note {
  color: var(--ink-soft);
}

.hero-dek {
  max-width: 58ch;
  margin-top: 1.25rem;
  font-size: 1.04rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 1.8rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.85rem 1.2rem;
  border-radius: 999px;
  text-decoration: none;
  font-family: "Tektur", sans-serif;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

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

.button-primary {
  background: var(--teal);
  color: #fff;
}

.button-secondary {
  border: 1px solid rgba(23, 70, 75, 0.16);
  background: rgba(255, 250, 241, 0.82);
  color: var(--ink);
}

.notice-row {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  max-width: 42rem;
  margin-top: 1.7rem;
  padding: 0.85rem 1rem;
  border-left: 3px solid var(--accent);
  background: rgba(255, 250, 241, 0.72);
  color: var(--ink);
}

.notice-dot {
  width: 0.68rem;
  height: 0.68rem;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0.3rem rgba(217, 115, 47, 0.12);
}

.status-stack {
  display: grid;
  gap: 1rem;
}

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

.status-card {
  padding: 1.1rem;
  border: 1px solid var(--line);
  border-radius: 1.25rem;
  background: rgba(255, 250, 241, 0.86);
}

.status-card.emphasis {
  padding: 1.4rem;
  background:
    linear-gradient(135deg, rgba(23, 70, 75, 0.92), rgba(15, 48, 52, 0.96)),
    linear-gradient(180deg, rgba(255, 255, 255, 0.05), transparent);
  color: #f8f3e8;
}

.status-card.emphasis .status-note,
.status-card.emphasis .status-label {
  color: rgba(248, 243, 232, 0.78);
}

.status-label,
.finding-kicker,
.source-label,
.source-chip,
th {
  font-family: "Tektur", sans-serif;
  font-size: 0.74rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.status-label,
.finding-kicker,
.source-label {
  margin-bottom: 0.55rem;
  color: var(--accent);
}

.status-value {
  font-family: "Instrument Serif", serif;
  font-size: clamp(1.4rem, 3vw, 2.2rem);
  line-height: 1.04;
}

.status-note {
  margin-top: 0.65rem;
  font-size: 0.92rem;
}

.section-heading {
  display: grid;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.findings-grid,
.use-grid,
.sources-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.finding-card,
.use-card,
.source-card,
.note-card,
.checklist-card {
  padding: 1.6rem;
}

.finding-card h3,
.use-card h3,
.source-card h3,
.note-card h3,
.checklist-card h3 {
  margin-bottom: 0.9rem;
}

.finding-card a,
.source-card a,
.source-chip {
  display: inline-flex;
  margin-top: 1rem;
  color: var(--teal);
  text-decoration: none;
}

.finding-card a:hover,
.source-card a:hover,
.source-chip:hover {
  color: var(--accent);
}

.dual-grid,
.benchmark-layout,
.faq-sources {
  display: grid;
  gap: 1rem;
}

.dual-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.checklist {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.9rem;
}

.checklist li {
  position: relative;
  padding-left: 1.5rem;
  color: var(--ink-soft);
}

.checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62rem;
  width: 0.56rem;
  height: 0.56rem;
  border-radius: 50%;
  background: var(--teal);
}

.checklist-card.caution {
  background:
    linear-gradient(180deg, rgba(255, 247, 238, 0.94), rgba(248, 238, 226, 0.88)),
    linear-gradient(180deg, transparent, transparent);
}

.checklist-card.caution .checklist li::before {
  background: var(--accent);
}

.benchmark-layout {
  grid-template-columns: minmax(0, 1.3fr) minmax(280px, 0.7fr);
  align-items: start;
}

.benchmark-table {
  position: relative;
  padding: 1.5rem;
}

.table-head {
  display: grid;
  gap: 0.6rem;
  margin-bottom: 1rem;
}

.table-scroll {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

thead th {
  padding: 0 0 0.85rem;
  text-align: left;
  color: var(--ink-soft);
}

tbody td {
  padding: 1rem 0;
  border-top: 1px solid rgba(23, 70, 75, 0.1);
  color: var(--ink);
}

.source-chip {
  margin-top: 1rem;
}

.benchmark-notes {
  display: grid;
  gap: 1rem;
}

.compact-list {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--ink-soft);
  display: grid;
  gap: 0.65rem;
}

.faq-sources {
  grid-template-columns: minmax(0, 0.86fr) minmax(0, 1.14fr);
  align-items: start;
}

.faq-list {
  display: grid;
  gap: 0.9rem;
}

.faq-list details {
  padding: 1.2rem 1.3rem;
}

.faq-list summary {
  cursor: pointer;
  list-style: none;
  font-family: "Instrument Serif", serif;
  font-size: 1.25rem;
}

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

.faq-list p {
  margin-top: 0.9rem;
  color: var(--ink-soft);
}

.sources-list {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.footer {
  margin-top: 4rem;
  padding: 1.5rem 0 0;
  border-top: 1px solid rgba(23, 70, 75, 0.16);
}

[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 420ms ease, transform 420ms ease;
}

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

@media (max-width: 1080px) {
  .hero,
  .benchmark-layout,
  .faq-sources {
    grid-template-columns: 1fr;
  }

  .findings-grid,
  .use-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .page-shell {
    width: min(var(--max-width), calc(100% - 1rem));
  }

  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero-copy,
  .hero-panel {
    padding: 1.4rem;
  }

  h1 {
    max-width: none;
    font-size: clamp(2.7rem, 15vw, 4.2rem);
  }

  h2 {
    max-width: none;
    font-size: clamp(1.9rem, 8vw, 2.8rem);
  }

  .findings-grid,
  .use-grid,
  .sources-list,
  .dual-grid,
  .mini-grid {
    grid-template-columns: 1fr;
  }

  .button,
  .nav a {
    width: 100%;
  }

  .nav {
    width: 100%;
  }

  .nav a {
    text-align: center;
  }

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

  tbody td,
  thead th {
    min-width: 9rem;
  }
}