/* EB Garamond (display/headings) + Public Sans (body) — academic calm meets functional clarity */
@import url('https://fonts.googleapis.com/css2?family=EB+Garamond:ital,wght@0,400;0,500;0,600;1,400&family=Public+Sans:wght@300;400;500;600&display=swap');

/* reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; background: none; border: none; font: inherit; }

/* tokens */
:root {
  /* colours */
  --clr-chalk:       #F5F2EC;
  --clr-chalk-mid:   #EAE5DB;
  --clr-chalk-deep:  #DDD6C8;
  --clr-ink:         #1A1612;
  --clr-ink-soft:    #3D3530;
  --clr-ink-muted:   #7A6E65;
  --clr-terra:       #C0573A;
  --clr-terra-light: #D4724E;
  --clr-terra-pale:  #F2E5E0;
  --clr-sage:        #6B8C6E;
  --clr-sage-light:  #8BA88E;
  --clr-sage-pale:   #E4EDE5;

  /* typography */
  --font-serif:  'EB Garamond', Georgia, serif;
  --font-sans:   'Public Sans', system-ui, sans-serif;

  /* type scale */
  --text-xs:   0.75rem;
  --text-sm:   0.875rem;
  --text-base: 1rem;
  --text-md:   1.125rem;
  --text-lg:   1.375rem;
  --text-xl:   1.75rem;
  --text-2xl:  2.25rem;
  --text-3xl:  3rem;
  --text-4xl:  4rem;
  --text-5xl:  5.5rem;

  /* spacing */
  --sp-1:  0.25rem;
  --sp-2:  0.5rem;
  --sp-3:  0.75rem;
  --sp-4:  1rem;
  --sp-5:  1.25rem;
  --sp-6:  1.5rem;
  --sp-8:  2rem;
  --sp-10: 2.5rem;
  --sp-12: 3rem;
  --sp-16: 4rem;
  --sp-20: 5rem;
  --sp-24: 6rem;
  --sp-32: 8rem;

  /* radius */
  --r-sm:  2px;
  --r-md:  4px;
  --r-lg:  8px;
  --r-xl:  16px;
  --r-full: 9999px;

  /* shadow */
  --shadow-sm:  0 1px 3px rgba(26,22,18,0.08);
  --shadow-md:  0 4px 12px rgba(26,22,18,0.10);
  --shadow-lg:  0 8px 24px rgba(26,22,18,0.12);

  /* transitions */
  --ease:       0.2s ease;
  --ease-slow:  0.4s ease;

  /* layout */
  --container:  1120px;
  --header-h:   68px;
  --logo-w:     120px;
  --logo-h:     36px;

  /* z-index */
  --z-header:    100;
  --z-mobile:    200;
  --z-cookie:    300;
  --z-back-top:  150;
}

/* base */
body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.65;
  color: var(--clr-ink);
  background: var(--clr-chalk);
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5 {
  font-family: var(--font-serif);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(var(--text-3xl), 6vw, var(--text-5xl)); }
h2 { font-size: clamp(var(--text-xl), 3vw, var(--text-3xl)); }
h3 { font-size: clamp(var(--text-lg), 2.5vw, var(--text-2xl)); }
h4 { font-size: var(--text-lg); }
h5 { font-size: var(--text-md); }

p { line-height: 1.75; }

strong { font-weight: 600; }
em { font-style: italic; }

/* layout */
.fz7qx-container {
	
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--sp-6);
}

.fz7qx-section {
  padding: var(--sp-20) 0;
}

main {
  padding-top: var(--header-h);
}

.fz7qx-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-8);
}

.fz7qx-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-8);
}

/* header */
#site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  background: var(--clr-chalk);
  border-bottom: 1px solid var(--clr-chalk-mid);
  z-index: var(--z-header);
  overflow: hidden;
}

.fz7qx-nav-inner {
  display: flex;
  align-items: center;
  height: var(--header-h);
  gap: var(--sp-6);
}

.fz7qx-logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.fz7qx-logo img {
  max-width: var(--logo-w);
  max-height: var(--logo-h);
  width: auto;
  height: auto;
  display: block;
}

.fz7qx-nav-links {
  display: flex;
  align-items: center;
  gap: var(--sp-8);
  margin-left: auto;
}

.fz7qx-nav-links a {
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--clr-ink-soft);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: color var(--ease);
  position: relative;
}

.fz7qx-nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0; right: 0;
  height: 1px;
  background: var(--clr-terra);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--ease);
}

.fz7qx-nav-links a:hover,
.fz7qx-nav-links a.active {
  color: var(--clr-terra);
}

.fz7qx-nav-links a:hover::after,
.fz7qx-nav-links a.active::after {
  transform: scaleX(1);
}

.fz7qx-hamburger {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 16px;
  margin-left: auto;
  padding: 0;
}

.fz7qx-hamburger span {
  display: block;
  height: 1px;
  background: var(--clr-ink);
  transition: transform var(--ease), opacity var(--ease);
}

.fz7qx-hamburger.open span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.fz7qx-hamburger.open span:nth-child(2) { opacity: 0; }
.fz7qx-hamburger.open span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* mobile menu */
.fz7qx-mobile-menu {
  display: flex;
  flex-direction: column;
  position: fixed;
  top: var(--header-h);
  left: 0; right: 0; bottom: 0;
  background: var(--clr-chalk);
  z-index: var(--z-mobile);
  padding: var(--sp-8) var(--sp-6);
  gap: var(--sp-6);
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-8px);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0s linear 0.2s;
}

.fz7qx-mobile-menu.open {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0s linear 0s;
}

.fz7qx-mobile-menu a {
  font-family: var(--font-serif);
  font-size: var(--text-xl);
  color: var(--clr-ink);
  border-bottom: 1px solid var(--clr-chalk-mid);
  padding-bottom: var(--sp-6);
}

.fz7qx-mobile-menu a:hover { color: var(--clr-terra); }

/* breadcrumb */
.fz7qx-breadcrumb {
  padding: var(--sp-4) 0;
}

.fz7qx-breadcrumb ol {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  flex-wrap: wrap;
}

.fz7qx-breadcrumb li {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: var(--text-sm);
  color: var(--clr-ink-muted);
}

.fz7qx-breadcrumb li:not(:last-child)::after {
  content: '—';
  color: var(--clr-chalk-deep);
}

.fz7qx-breadcrumb a {
  color: var(--clr-ink-muted);
  transition: color var(--ease);
}

.fz7qx-breadcrumb a:hover { color: var(--clr-terra); }
.fz7qx-breadcrumb li:last-child { color: var(--clr-ink); }

/* footer */
#site-footer {
  background: var(--clr-ink);
  color: var(--clr-chalk-mid);
  padding: var(--sp-16) 0 var(--sp-8);
}

.fz7qx-footer-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-16);
  padding-bottom: var(--sp-12);
  border-bottom: 1px solid rgba(245,242,236,0.12);
  margin-bottom: var(--sp-8);
}

.fz7qx-footer-slogan {
  font-family: var(--font-serif);
  font-size: clamp(var(--text-xl), 3vw, var(--text-3xl));
  color: var(--clr-chalk);
  line-height: 1.25;
  font-style: italic;
}

.fz7qx-footer-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-8);
}

.fz7qx-footer-col h5 {
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--clr-ink-muted);
  margin-bottom: var(--sp-4);
}

.fz7qx-footer-col a {
  display: block;
  font-size: var(--text-sm);
  color: var(--clr-chalk-mid);
  margin-bottom: var(--sp-3);
  transition: color var(--ease);
}

.fz7qx-footer-col a:hover { color: var(--clr-terra-light); }

.fz7qx-footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--sp-4);
  font-size: var(--text-xs);
  color: var(--clr-ink-muted);
}

.fz7qx-footer-logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.fz7qx-footer-logo img {
  max-width: calc(var(--logo-w) * 0.9);
  max-height: calc(var(--logo-h) * 0.9);
  width: auto;
  height: auto;
  display: block;
  filter: brightness(0) invert(1) opacity(0.6);
}

/* cookie */
#cookie-banner {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  background: var(--clr-ink);
  color: var(--clr-chalk-mid);
  padding: var(--sp-5) var(--sp-6);
  z-index: var(--z-cookie);
  transform: translateY(100%);
  transition: transform 0.3s ease;
  border-top: 2px solid var(--clr-terra);
}

#cookie-banner.visible { transform: translateY(0); }

.fz7qx-cookie-inner {
  max-width: var(--container);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-6);
  flex-wrap: wrap;
}

.fz7qx-cookie-inner p {
  font-size: var(--text-sm);
  line-height: 1.5;
}

.fz7qx-cookie-inner a { color: var(--clr-terra-light); text-decoration: underline; }

.fz7qx-cookie-btns {
  display: flex;
  gap: var(--sp-3);
  flex-shrink: 0;
}

.fz7qx-btn-cookie-accept {
  background: var(--clr-terra);
  color: var(--clr-chalk);
  padding: var(--sp-2) var(--sp-5);
  font-size: var(--text-sm);
  font-weight: 500;
  border-radius: var(--r-sm);
  transition: background var(--ease);
}

.fz7qx-btn-cookie-accept:hover { background: var(--clr-terra-light); }

.fz7qx-btn-cookie-decline {
  background: transparent;
  color: var(--clr-ink-muted);
  padding: var(--sp-2) var(--sp-5);
  font-size: var(--text-sm);
  border: 1px solid var(--clr-ink-soft);
  border-radius: var(--r-sm);
  transition: border-color var(--ease), color var(--ease);
}

.fz7qx-btn-cookie-decline:hover { border-color: var(--clr-chalk-mid); color: var(--clr-chalk-mid); }

/* back to top */
#back-to-top {
  position: fixed;
  bottom: var(--sp-8);
  right: var(--sp-6);
  width: 40px;
  height: 40px;
  background: var(--clr-ink);
  color: var(--clr-chalk);
  border-radius: var(--r-full);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-back-top);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--ease), transform var(--ease);
  transform: translateY(8px);
}

#back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

#back-to-top svg { width: 16px; height: 16px; }
#back-to-top:hover { background: var(--clr-terra); }

/* animations */
.fz7qx-reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fz7qx-reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* reading progress */
#reading-progress {
  position: fixed;
  top: var(--header-h);
  left: 0;
  height: 2px;
  background: var(--clr-terra);
  z-index: var(--z-header);
  width: 0%;
  transition: width 0.1s linear;
}

/* responsive */
@media (max-width: 1023px) {
  .fz7qx-nav-links { display: none; }
  .fz7qx-hamburger { display: flex; }
}

@media (min-width: 1024px) {
  .fz7qx-hamburger { display: none; }
  .fz7qx-nav-links { display: flex; }
}

@media (max-width: 767px) {
  :root {
    --sp-20: 4rem;
    --sp-24: 5rem;
  }

  .fz7qx-grid-2,
  .fz7qx-grid-3 {
    grid-template-columns: 1fr;
  }

  .fz7qx-footer-inner {
    grid-template-columns: 1fr;
    gap: var(--sp-8);
  }

  .fz7qx-footer-cols {
    grid-template-columns: 1fr 1fr;
  }

  .fz7qx-footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .fz7qx-cookie-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .fz7qx-reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}