:root {
  --color-bg: #fdfdfc;
  --color-bg-subtle: #f8f7f4;
  --color-bg-hover: #f2efe7;
  --color-border: #e8e6e0;
  --color-border-strong: #d8d3c5;
  --color-text: #1a1815;
  --color-text-muted: #6b6760;
  --color-text-subtle: #908b82;
  --color-accent: #2d4a3e;
  --color-accent-hover: #1f3329;
  --font-serif: var(--font-serif-import, "Fraunces"), "Iowan Old Style", Georgia, serif;
  --font-sans: var(--font-sans-import, "Inter"), -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", Menlo, monospace;
  --text-xs: 12px;
  --text-sm: 14px;
  --text-base: 16px;
  --text-lg: 18px;
  --text-xl: 22px;
  --text-2xl: 28px;
  --text-3xl: 36px;
  --text-4xl: 44px;
  --text-5xl: 56px;
  --space-section: 4.5rem;
  --space-section-sm: 3rem;
  --sticky-nav-offset: 65px;
  --max-width: 1080px;
  --color-forest: var(--color-accent);
  --color-forest-deep: var(--color-accent-hover);
  --color-cream: var(--color-bg);
  --color-cream-warm: var(--color-bg-subtle);
  --color-cream-deeper: var(--color-bg-hover);
  --color-border-soft: var(--color-border);
}

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

html,
body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  margin: 0;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-serif);
  font-weight: 400;
  letter-spacing: -0.015em;
  line-height: 1.15;
  color: var(--color-text);
}

h1 {
  font-size: var(--text-4xl);
  font-variation-settings: "opsz" 144, "SOFT" 30;
}

h2 {
  font-size: var(--text-2xl);
  font-variation-settings: "opsz" 72;
}

h3 {
  font-size: var(--text-xl);
  font-variation-settings: "opsz" 36;
}

h4 {
  font-size: var(--text-lg);
  font-variation-settings: "opsz" 24;
}

.emphasis {
  font-weight: 500;
  color: inherit;
}

.accent {
  color: var(--color-accent);
}

a {
  color: var(--color-text);
  text-decoration: none;
  border-bottom: 0.5px solid currentColor;
  transition: color 0.15s ease, border-color 0.15s ease;
}

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

a.bare,
.nav-brand,
.nav-links a,
.footer-meta a,
.lang-button,
.btn {
  border-bottom: none;
}

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

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
}

.eyebrow {
  margin-bottom: 1rem;
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  font-weight: 400;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.reveal-target {
  opacity: 0;
  transform: translate3d(0, 28px, 0);
  filter: blur(2px);
  transition:
    opacity 680ms cubic-bezier(0.22, 1, 0.36, 1),
    transform 680ms cubic-bezier(0.22, 1, 0.36, 1),
    filter 680ms cubic-bezier(0.22, 1, 0.36, 1);
  transition-delay: var(--reveal-delay, 0ms);
  will-change: opacity, transform, filter;
}

.reveal-target.is-visible,
.reveal-done {
  opacity: 1;
  transform: none;
  filter: none;
}

@media (prefers-reduced-motion: reduce) {
  .reveal-target,
  .reveal-target.is-visible,
  .reveal-done {
    opacity: 1;
    transform: none;
    filter: none;
    transition: none;
  }
}

.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  padding: 1.25rem 0;
  border-bottom: 0.5px solid var(--color-border);
  background: var(--color-bg);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-meta {
  display: flex;
  align-items: center;
  min-width: 0;
}

.nav-brand {
  display: inline-block;
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 400;
  color: var(--color-text);
  white-space: nowrap;
}

.mobile-only {
  display: none !important;
}

.nav-menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 0.5px solid var(--color-border);
  border-radius: 4px;
  background: var(--color-bg);
  color: var(--color-text);
  cursor: pointer;
}

.nav-menu-toggle:hover {
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.nav-menu-toggle-lines {
  position: relative;
  width: 18px;
  height: 12px;
}

.nav-menu-toggle-lines span {
  position: absolute;
  left: 0;
  width: 100%;
  height: 1px;
  background: currentColor;
  transition: transform 0.2s ease, opacity 0.2s ease, top 0.2s ease;
}

.nav-menu-toggle-lines span:nth-child(1) {
  top: 0;
}

.nav-menu-toggle-lines span:nth-child(2) {
  top: 5px;
}

.nav-menu-toggle-lines span:nth-child(3) {
  top: 10px;
}

.nav.nav-open .nav-menu-toggle-lines span:nth-child(1) {
  top: 5px;
  transform: rotate(45deg);
}

.nav.nav-open .nav-menu-toggle-lines span:nth-child(2) {
  opacity: 0;
}

.nav.nav-open .nav-menu-toggle-lines span:nth-child(3) {
  top: 5px;
  transform: rotate(-45deg);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  min-width: 0;
  font-size: var(--text-sm);
}

.nav-links a {
  padding-bottom: 3px;
  color: var(--color-text-muted);
  border-bottom: 0.5px solid transparent;
}

.nav-links a:hover {
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.nav-links a.active {
  color: var(--color-text);
  border-color: var(--color-text);
}

.lang-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  margin-left: 0.25rem;
  color: var(--color-text-muted);
}

.lang-toggle-label {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.lang-button {
  padding: 0 0 2px;
  border: 0;
  background: transparent;
  font: inherit;
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
  cursor: pointer;
  border-bottom: 0.5px solid transparent;
}

.lang-button:hover {
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.lang-button.active {
  color: var(--color-text);
  border-color: var(--color-text);
}

.lang-divider {
  font-size: var(--text-xs);
  color: var(--color-border-strong);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.btn-primary {
  padding: 11px 18px;
  border: none;
  border-radius: 4px;
  background: var(--color-text);
  color: var(--color-bg);
}

.btn-primary:hover {
  background: var(--color-accent);
  color: var(--color-bg);
}

.btn-secondary {
  padding: 11px 0;
  border: none;
  border-radius: 0;
  background: transparent;
  color: var(--color-text);
  border-bottom: 0.5px solid var(--color-text);
}

.btn-secondary:hover {
  background: transparent;
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.btn-tertiary {
  padding: 11px 0;
  border: none;
  border-radius: 0;
  background: transparent;
  color: var(--color-text-muted);
  border-bottom: 0.5px solid var(--color-border-strong);
  font-weight: 400;
}

.btn-tertiary:hover {
  background: transparent;
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.section-title {
  margin: 0;
  color: var(--color-text);
}

.section-link {
  padding-bottom: 2px;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  border-bottom: 0.5px solid currentColor;
}

.page-header {
  padding: var(--space-section) 0 var(--space-section-sm);
}

.page-header h1 {
  margin: 0 0 1.25rem;
  max-width: 22ch;
  font-size: clamp(2.3rem, 4.4vw, 3.3rem);
  font-weight: 400;
  line-height: 1.12;
  letter-spacing: -0.015em;
  color: var(--color-text);
}

.page-header p {
  margin: 0;
  max-width: 60ch;
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--color-text);
}

.card {
  background: var(--color-bg);
  border: 0.5px solid var(--color-border);
  border-radius: 4px;
  padding: 24px 28px;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.card:hover {
  background: var(--color-bg-subtle);
  border-color: var(--color-border-strong);
}

.quartile-badge,
.badge {
  display: inline-block;
  padding: 3px 8px;
  border: 0.5px solid var(--color-border-strong);
  border-radius: 3px;
  background: transparent;
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
}

.q1,
.q2,
.q3,
.q4,
.sinta,
.other {
  background: transparent;
  color: var(--color-text-muted);
  border: 0.5px solid var(--color-border-strong);
}

.pub-meta {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  letter-spacing: 0.03em;
}

.footer {
  padding: var(--space-section-sm) 0 3rem;
  border-top: 0.5px solid var(--color-border);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 3rem;
  align-items: end;
}

.footer-headline {
  margin: 0 0 0.5rem;
  font-size: var(--text-xl);
  font-weight: 400;
  line-height: 1.2;
  color: var(--color-text);
}

.footer-email {
  padding-bottom: 1px;
  font-size: 15px;
  color: var(--color-text-muted);
}

.footer-meta {
  font-size: var(--text-xs);
  line-height: 1.8;
  letter-spacing: 0.03em;
  color: var(--color-text-muted);
}

.footer-meta a {
  display: block;
  color: inherit;
}

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

.footer-coords {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 0.5px solid var(--color-border);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

@media (max-width: 768px) {
  :root {
    --space-section: 3rem;
    --space-section-sm: 2.2rem;
  }

  .container {
    padding: 0 1.1rem;
  }

  .nav {
    padding: 0.95rem 0 0.9rem;
  }

  .nav-inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 0.7rem 1rem;
  }

  .nav-meta {
    display: grid;
    gap: 0.5rem;
    align-items: start;
  }

  .mobile-only {
    display: inline-flex !important;
  }

  .desktop-only {
    display: none !important;
  }

  .nav-brand {
    width: auto;
    text-align: left;
    font-size: 15px;
    line-height: 1.2;
    white-space: normal;
  }

  .nav-menu-toggle {
    display: inline-flex;
    grid-column: 2;
    grid-row: 1 / span 2;
    align-self: center;
  }

  .nav-links {
    display: none;
    grid-column: 1 / -1;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.95rem;
    margin-top: 0.15rem;
    padding-top: 0.95rem;
    border-top: 0.5px solid var(--color-border);
    font-size: 13px;
  }

  .nav.nav-open .nav-links {
    display: flex;
  }

  .lang-toggle {
    margin-left: 0;
    flex: 0 0 auto;
  }

  .nav-meta .lang-toggle {
    align-self: flex-start;
  }

  .section-header {
    margin-bottom: 1.5rem;
  }

  .page-header {
    padding: calc(var(--space-section) - 0.25rem) 0 var(--space-section-sm);
  }

  .page-header h1 {
    margin-bottom: 1rem;
    max-width: 100%;
    font-size: clamp(2rem, 8vw, 2.65rem);
  }

  .page-header p {
    font-size: 15px;
    line-height: 1.7;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .footer-coords {
    flex-direction: column;
    gap: 0.5rem;
    align-items: flex-start;
  }
}

@media (max-width: 560px) {
  :root {
    --space-section: 2.7rem;
    --space-section-sm: 1.9rem;
  }

  .container {
    padding: 0 1rem;
  }

  .nav-brand {
    font-size: 14px;
  }

  .nav-links {
    font-size: 12.5px;
  }
}