/* ==========================================================
   Qtarang — base: reset, typography, layout, header, footer
   ========================================================== */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: calc(var(--header-h) + 16px);
}

body {
  margin: 0;
  background: var(--q-cream);
  color: var(--q-ink-80);
  font-family: var(--f-body);
  font-size: var(--fs-body);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img, svg { max-width: 100%; display: block; }
img { height: auto; }
[hidden] { display: none !important; }

h1, h2, h3, h4 {
  margin: 0 0 var(--s-4);
  color: var(--q-ink);
  font-family: var(--f-display);
  font-optical-sizing: auto;
  text-wrap: balance;
}
h1 { font-size: var(--fs-h1); line-height: 1.05; font-weight: 350; letter-spacing: -0.02em; }
h2 { font-size: var(--fs-h2); line-height: 1.1;  font-weight: 350; letter-spacing: -0.015em; }
h3 { font-size: var(--fs-h3); line-height: 1.25; font-weight: 420; letter-spacing: -0.005em; }
h1 em, h2 em, h3 em { font-style: italic; color: var(--q-copper); font-weight: inherit; }

p { margin: 0 0 var(--s-4); }
p:last-child { margin-bottom: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }

a { color: var(--q-copper-700); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--q-ink); }

:focus-visible {
  outline: 2px solid var(--q-copper);
  outline-offset: 3px;
}

::selection { background: var(--q-copper-50); color: var(--q-ink); }

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden; clip: rect(0 0 0 0);
  white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute;
  left: var(--s-4); top: -100px;
  z-index: 200;
  padding: var(--s-3) var(--s-4);
  background: var(--q-ink);
  color: var(--q-on-ink);
  font-weight: 600;
  text-decoration: none;
}
.skip-link:focus { top: var(--s-3); color: var(--q-on-ink); }

/* ---------- layout ---------- */

.container {
  width: 100%;
  max-width: calc(var(--container) + var(--gutter) * 2);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: var(--section-pad); position: relative; }
.section--tight { padding-block: calc(var(--section-pad) * 0.625); }
.section--flush-top { padding-top: 0; }
.section--paper { background: var(--q-paper); }
.section--dark {
  background: var(--q-ink);
  color: var(--q-on-ink-70);
}
.section--dark h1, .section--dark h2, .section--dark h3 { color: var(--q-on-ink); }
.section--dark h1 em, .section--dark h2 em, .section--dark h3 em { color: var(--q-photon); }
.section--dark a:not(.btn) { color: var(--q-on-ink); }

.rule { height: 0; margin: 0; border: 0; border-top: 1px solid var(--q-line); }

.section-head { max-width: 56ch; margin-bottom: var(--s-7); }
.section-head--center { margin-inline: auto; text-align: center; }
.section-head h2 { margin-bottom: var(--s-4); }
.section-head > p:not(.eyebrow) { color: var(--q-ink-60); }
.section--dark .section-head > p:not(.eyebrow) { color: var(--q-on-ink-70); }

.section-foot { margin-top: var(--s-7); }

.eyebrow {
  display: block;
  margin: 0 0 var(--s-4);
  color: var(--q-copper-700);
  font-family: var(--f-body);
  font-size: var(--fs-eyebrow);
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.section--dark .eyebrow { color: var(--q-photon); }

.lede {
  max-width: 48ch;
  color: var(--q-ink-60);
  font-size: var(--fs-lede);
  line-height: 1.6;
}
.section--dark .lede { color: var(--q-on-ink-70); }

.split {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: var(--s-8);
  align-items: start;
}
.split--even { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.split--center { align-items: center; }

@media (max-width: 900px) {
  .split, .split--even { grid-template-columns: minmax(0, 1fr); gap: var(--s-7); }
}

/* ---------- header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--q-cream);
  border-bottom: 1px solid transparent;
  transition: background-color 200ms ease, border-color 200ms ease;
}
.site-header.is-scrolled {
  background: rgba(244, 239, 230, 0.85);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom-color: var(--q-line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-6);
  height: var(--header-h);
}

.brand { display: inline-flex; flex-shrink: 0; align-items: center; }
.brand img { width: auto; height: 48px; }

.site-nav { display: flex; align-items: center; gap: var(--s-6); }
.nav-cta { flex-shrink: 0; white-space: nowrap; }
.nav-list { display: flex; align-items: center; gap: var(--s-5); }

.nav-list a,
.nav-dropdown-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: var(--s-2) 0;
  border: 0;
  background: none;
  color: var(--q-ink);
  font: 500 0.92rem/1.2 var(--f-body);
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
  position: relative;
}
.nav-list > li > a::after,
.nav-dropdown-toggle::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 2px;
  height: 1px;
  background: var(--q-copper);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 220ms var(--ease-out);
}
.nav-list > li > a:hover::after,
.nav-list > li > a[aria-current="page"]::after,
.nav-dropdown-toggle:hover::after,
.nav-dropdown-toggle.is-active::after { transform: scaleX(1); }
.nav-list a:hover { color: var(--q-ink); }

.nav-chevron { width: 10px; height: 10px; transition: transform 200ms ease; }

.has-dropdown { position: relative; }
.nav-dropdown {
  position: absolute;
  top: calc(100% + 10px);
  left: -20px;
  min-width: 200px;
  padding: var(--s-2) 0;
  background: var(--q-paper);
  border: 1px solid var(--q-line);
  box-shadow: 0 18px 40px -24px rgba(22, 26, 44, 0.35);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity 160ms ease, transform 160ms ease, visibility 0s linear 160ms;
}
.nav-dropdown::before { /* hover bridge */
  content: ""; position: absolute; left: 0; right: 0; top: -12px; height: 12px;
}
.nav-dropdown a {
  display: flex;
  justify-content: space-between;
  width: 100%;
  padding: var(--s-3) 20px;
}
.nav-dropdown a:hover, .nav-dropdown a[aria-current="page"] { background: var(--q-copper-50); }
.nav-dropdown-desc { display: block; color: var(--q-ink-60); font-size: 0.78rem; font-weight: 400; }

@media (min-width: 901px) {
  .has-dropdown:hover .nav-dropdown,
  .has-dropdown:focus-within .nav-dropdown,
  .nav-dropdown-toggle[aria-expanded="true"] + .nav-dropdown {
    opacity: 1; visibility: visible; transform: none;
    transition: opacity 160ms ease, transform 160ms ease;
  }
  .has-dropdown:hover .nav-chevron,
  .nav-dropdown-toggle[aria-expanded="true"] .nav-chevron { transform: rotate(180deg); }
  .has-dropdown.is-dismissed .nav-dropdown { opacity: 0; visibility: hidden; }
}

.nav-toggle {
  display: none;
  width: 44px; height: 44px;
  margin-right: -10px;
  padding: 0;
  border: 0;
  background: none;
  color: var(--q-ink);
  cursor: pointer;
}
.nav-toggle-bars,
.nav-toggle-bars::before,
.nav-toggle-bars::after {
  display: block;
  width: 22px; height: 1.5px;
  margin-inline: auto;
  background: currentColor;
  transition: transform 220ms var(--ease-out), opacity 150ms ease;
}
.nav-toggle-bars { position: relative; }
.nav-toggle-bars::before, .nav-toggle-bars::after { content: ""; position: absolute; left: 0; }
.nav-toggle-bars::before { top: -7px; }
.nav-toggle-bars::after { top: 7px; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::before { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::after { transform: translateY(-7px) rotate(-45deg); }

/* narrow desktop: tighten so everything fits before the 900px switch */
@media (max-width: 1120px) and (min-width: 901px) {
  .header-inner { gap: var(--s-4); }
  .brand img { height: 32px; }
  .site-nav { gap: 14px; }
  .nav-list { gap: 14px; }
  .nav-list a, .nav-dropdown-toggle { font-size: 0.84rem; }
  .nav-chevron { width: 8px; height: 8px; }
  .nav-cta { padding: 10px 12px; font-size: 0.84rem; }
}

@media (max-width: 900px) {
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .brand img { height: 36px; }

  .site-nav {
    position: fixed;
    top: var(--header-h); right: 0; bottom: 0; left: 0;
    flex-direction: column;
    align-items: stretch;
    gap: var(--s-6);
    height: calc(100dvh - var(--header-h));
    padding: var(--s-5) var(--gutter) var(--s-7);
    overflow-y: auto;
    background: var(--q-cream);
    border-top: 1px solid var(--q-line);
    visibility: hidden;
    opacity: 0;
    transform: translateY(-8px);
    transition: opacity 200ms ease, transform 200ms var(--ease-out), visibility 0s linear 200ms;
  }
  .nav-open .site-nav {
    visibility: visible; opacity: 1; transform: none;
    transition: opacity 200ms ease, transform 200ms var(--ease-out);
  }
  .nav-open { overflow: hidden; }
  .nav-open .site-header { background: var(--q-cream); border-bottom-color: var(--q-line); }

  .nav-list { flex-direction: column; align-items: stretch; gap: 0; }
  .nav-list > li { border-bottom: 1px solid var(--q-line); }
  .nav-list a, .nav-dropdown-toggle {
    width: 100%;
    padding: var(--s-4) 0;
    font-family: var(--f-display);
    font-size: 1.45rem;
    font-weight: 350;
  }
  .nav-list > li > a::after, .nav-dropdown-toggle::after { display: none; }
  .nav-list > li > a[aria-current="page"] { color: var(--q-copper-700); }

  .nav-dropdown-toggle { pointer-events: none; color: var(--q-ink-60); }
  .nav-dropdown-toggle.is-active { color: var(--q-copper-700); }
  .nav-chevron { display: none; }
  .nav-dropdown {
    position: static;
    min-width: 0;
    padding: 0 0 var(--s-4) var(--s-4);
    background: none; border: 0; box-shadow: none;
    opacity: 1; visibility: inherit; transform: none;
  }
  .nav-dropdown::before { display: none; }
  .nav-dropdown a { padding: var(--s-2) 0; font-size: 1.15rem; }
  .nav-dropdown a:hover { background: none; color: var(--q-copper-700); }
  .nav-dropdown a[aria-current="page"] { background: none; color: var(--q-copper-700); }
  .nav-dropdown-desc { display: none; }

  .nav-cta { justify-content: center; }
}

/* ---------- footer ---------- */

.site-footer {
  padding-top: var(--s-9);
  background: var(--q-ink);
  color: var(--q-on-ink-70);
  font-size: 0.95rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 0.9fr) minmax(0, 0.9fr) minmax(0, 1.5fr);
  gap: var(--s-7);
  padding-bottom: var(--s-8);
}
.footer-logo {
  display: inline-block;
  margin-bottom: var(--s-5);
  padding: 14px 18px;
  background: var(--q-paper);
}
.footer-logo img { width: 230px; }
.footer-brand p { max-width: 46ch; }
.footer-title {
  margin: 0 0 var(--s-4);
  color: var(--q-photon);
  font-family: var(--f-body);
  font-size: var(--fs-eyebrow);
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.footer-links li + li { margin-top: var(--s-2); }
.site-footer a {
  color: var(--q-on-ink);
  text-decoration: none;
  overflow-wrap: break-word;
  background-image: linear-gradient(var(--q-photon), var(--q-photon));
  background-size: 0 1px;
  background-position: 0 100%;
  background-repeat: no-repeat;
  transition: background-size 220ms var(--ease-out);
}
.site-footer a:hover { background-size: 100% 1px; color: var(--q-on-ink); }
.site-footer .footer-logo { background-image: none; }
.site-footer :focus-visible { outline-color: var(--q-photon); }

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--s-3) var(--s-5);
  padding-block: var(--s-5);
  border-top: 1px solid var(--q-line-on-ink);
  font-size: 0.85rem;
}
.footer-bottom ul { display: flex; flex-wrap: wrap; gap: var(--s-2) var(--s-5); }
.footer-tagline { font-family: var(--f-display); font-style: italic; color: var(--q-on-ink-70); }

@media (max-width: 900px) {
  .footer-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 540px) {
  .footer-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: var(--s-6); }
  .footer-contact { grid-column: 1 / -1; }
}

/* ---------- reveal on scroll ---------- */

.js .reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 400ms var(--ease-out), transform 400ms var(--ease-out);
}
.js .reveal.is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .js .reveal { opacity: 1; transform: none; }
}

.section--dark + .site-footer { border-top: 1px solid var(--q-line-on-ink); }