/* ==========================================================================
   ENDLESS BELOW — page scaffolding: shell, header, nav, sections, footer
   ========================================================================== */

/* --- Shell ---------------------------------------------------------------- */
.page {
  position: relative;
  z-index: var(--z-content);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.page__main {
  flex: 1 0 auto;
}

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

.container--wide {
  max-width: var(--width-wide);
}

.container--text {
  max-width: calc(var(--width-text) + var(--gutter) * 2);
}

/* --- Sections ------------------------------------------------------------- */
.section {
  position: relative;
  padding-block: var(--section-y);
}

.section--sunken {
  background:
    linear-gradient(180deg, rgba(3, 3, 4, 0) 0%, rgba(3, 3, 4, 0.72) 18%, rgba(3, 3, 4, 0.72) 82%, rgba(3, 3, 4, 0) 100%);
}

.section--tight {
  padding-block: clamp(2.5rem, 4vw, 4.5rem);
}

.section__head {
  margin-bottom: clamp(2rem, 4vw, 3.5rem);
}

.section__head--center {
  text-align: center;
  margin-inline: auto;
  max-width: 62ch;
}

.section__head--center p {
  margin-inline: auto;
}

.section__title {
  font-size: var(--fs-display-2);
  margin-bottom: var(--sp-4);
}

.section__lead {
  font-size: var(--fs-lead);
  color: var(--parchment-300);
}

/* --- Header --------------------------------------------------------------- */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: var(--z-header);
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background-color var(--dur) var(--ease),
    border-color var(--dur) var(--ease), backdrop-filter var(--dur) var(--ease);
}

/* Blends into the hero, firms up once the page scrolls. */
.site-header.is-scrolled,
.site-header--solid {
  background: rgba(5, 5, 6, 0.94);
  border-bottom-color: transparent;
  backdrop-filter: none;
}

.site-header__inner {
  display: flex;
  align-items: center;
  gap: var(--sp-5);
  min-height: var(--header-h);
}

/* Brand lockup */
.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-3);
  flex: 0 0 auto;
  flex-shrink: 0;
  color: var(--parchment-100);
  text-decoration: none;
}

.brand__sigil {
  width: 28px;
  height: 28px;
  color: var(--parchment-300);
  transition: color var(--dur) var(--ease), transform var(--dur-slow) var(--ease);
}

.brand:hover .brand__sigil {
  color: var(--cyan);
  transform: rotate(-4deg);
}

.brand__name {
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  white-space: nowrap;
}

/* Primary navigation */
.site-nav {
  flex: 1 1 auto;
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav__list li {
  margin: 0;
}

.site-nav__link {
  position: relative;
  display: inline-block;
  padding: var(--sp-2) 0;
  color: var(--parchment-300);
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
  text-decoration: none;
  white-space: nowrap;
}

.site-nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: 0;
  height: 1px;
  background: var(--cyan);
  transition: right var(--dur) var(--ease);
}

.site-nav__link:hover,
.site-nav__link:focus-visible {
  color: var(--parchment-100);
}

.site-nav__link:hover::after {
  right: 0;
}

.site-nav__link[aria-current="page"] {
  color: var(--parchment-100);
}

.site-nav__link[aria-current="page"]::after {
  right: 0;
  background: var(--rule-strong);
}

/* Header call-to-action cluster */
.site-header__cta {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  flex: 0 0 auto;
  flex-shrink: 0;
}

/* Mobile menu trigger */
.nav-toggle {
  display: none;
  align-items: center;
  gap: var(--sp-3);
  margin-left: auto;
  padding: var(--sp-2) var(--sp-3);
  border: var(--border);
  color: var(--parchment-200);
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
}

.nav-toggle__bars {
  position: relative;
  display: block;
  width: 18px;
  height: 10px;
}

.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 1px;
  background: currentColor;
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}

.nav-toggle__bars::before {
  top: 0;
}
.nav-toggle__bars::after {
  bottom: 0;
}

.site-header.is-open .nav-toggle__bars::before {
  transform: translateY(4px) rotate(45deg);
}

.site-header.is-open .nav-toggle__bars::after {
  transform: translateY(-5px) rotate(-45deg);
}

/* --- Footer --------------------------------------------------------------- */
.site-footer {
  position: relative;
  margin-top: var(--sp-8);
  padding-block: var(--sp-8) var(--sp-6);
  border-top: var(--border);
  background: linear-gradient(180deg, rgba(3, 3, 4, 0.4), rgba(3, 3, 4, 0.9));
}

.site-footer__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: var(--sp-7) var(--sp-6);
  align-items: start;
}

.site-footer__brand .brand {
  margin-bottom: var(--sp-4);
}

.site-footer__tagline {
  max-width: 34ch;
  color: var(--text-muted);
  font-size: var(--fs-small);
}

.site-footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-5) var(--sp-7);
}

.footer-col h4 {
  margin-bottom: var(--sp-3);
  color: var(--parchment-500);
  font-size: var(--fs-micro);
}

.footer-col ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-col li {
  margin-bottom: var(--sp-2);
}

.footer-col a {
  color: var(--parchment-300);
  font-size: var(--fs-small);
  text-decoration: none;
}

.footer-col a:hover {
  color: var(--cyan);
}

.site-footer__base {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--sp-3);
  margin-top: var(--sp-7);
  padding-top: var(--sp-5);
  border-top: var(--border);
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
}

/* --- Generic page header (inner pages) ------------------------------------ */
.page-header {
  position: relative;
  padding-block: calc(var(--header-h) + var(--sp-8)) var(--sp-8);
  border-bottom: var(--border);
  overflow: hidden;
}

.page-header::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    var(--rule-strong) 30%,
    var(--rule-strong) 70%,
    transparent
  );
}

.page-header__inner {
  position: relative;
  max-width: 72ch;
}

.page-header__title {
  font-size: var(--fs-display-2);
  margin-bottom: var(--sp-4);
}

.page-header__lead {
  font-size: var(--fs-lead);
  color: var(--parchment-300);
}

/* --- Grids ---------------------------------------------------------------- */
.grid {
  display: grid;
  gap: clamp(var(--sp-4), 2vw, var(--sp-6));
}

.grid--2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.grid--3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.grid--4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

/* Split layout: text column + art column */
.split {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(var(--sp-5), 4vw, var(--sp-8));
  align-items: center;
}

.split--reverse > :first-child {
  order: 2;
}

/* ==========================================================================
   Responsive
   ========================================================================== */

/* Collapse the primary nav before the lockup + links + CTAs overflow. */
@media (max-width: 1240px) {
  :root {
    --header-h: 64px;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .site-header__inner {
    flex-wrap: wrap;
  }

  .site-nav {
    flex: 1 0 100%;
    display: none;
    padding-bottom: var(--sp-5);
  }

  .site-header.is-open {
    background: #050506;
    border-bottom-color: var(--rule);
    max-height: 100vh;
    overflow-y: auto;
  }

  .site-header.is-open .site-nav {
    display: block;
  }

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: var(--sp-2);
    border-top: 0;
    padding-top: var(--sp-4);
  }

  .site-nav__link {
    display: flex;
    width: 100%;
    justify-content: center;
  }

  .site-nav__link::after {
    display: none;
  }

  .site-header__cta {
    order: 3;
    flex: 1 0 100%;
    display: none;
    padding-bottom: var(--sp-5);
  }

  .site-header.is-open .site-header__cta {
    display: flex;
  }

  .site-header__cta .btn {
    flex: 1 1 auto;
    justify-content: center;
  }
}

@media (max-width: 1024px) {
  .grid--4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .split {
    grid-template-columns: 1fr;
    gap: var(--sp-6);
  }

  .split--reverse > :first-child {
    order: 0;
  }
}

@media (max-width: 768px) {
  .grid--3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .site-footer__grid {
    grid-template-columns: 1fr;
  }

  .site-footer__links {
    gap: var(--sp-6);
  }
}

@media (max-width: 560px) {
  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: 1fr;
  }

  .site-footer__base {
    flex-direction: column;
  }
}

/* When JavaScript is unavailable the menu cannot be toggled, so the nav
   stays visible as a wrapped row and the toggle button is hidden. */
.no-js .nav-toggle {
  display: none !important;
}

@media (max-width: 1240px) {
  .no-js .site-nav,
  .no-js .site-header__cta {
    display: block;
  }

  .no-js .site-nav__list {
    flex-direction: row;
    flex-wrap: wrap;
    border-top: 0;
    gap: var(--sp-2) var(--sp-4);
  }

  .no-js .site-nav__link {
    border-bottom: 0;
    padding: var(--sp-2) 0;
  }

  .no-js .site-header {
    position: relative;
    background: rgba(5, 5, 6, 0.9);
  }
}