/* Page frame: backdrop, 3D stage, header, navigation, footer, grid. */

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

.main {
  position: relative;
  z-index: 2;
}

.section {
  position: relative;
  padding-block: var(--section-y);
}
.section--tight {
  padding-block: calc(var(--section-y) * 0.6);
}
.section--flush-top {
  padding-top: 0;
}

.grid {
  display: grid;
  gap: var(--gutter);
}
.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)); }

@media (max-width: 1100px) {
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 680px) {
  .grid--2,
  .grid--3,
  .grid--4 { grid-template-columns: minmax(0, 1fr); }
}

/* ---------- backdrop (CSS aurora; also the no-WebGL fallback) ---------- */
.backdrop {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
  background: radial-gradient(120% 80% at 50% -10%, #11131c 0%, var(--ink) 60%);
  transition: opacity 1.2s var(--ease-out);
}
.backdrop__orb {
  position: absolute;
  width: 60vmax;
  height: 60vmax;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.32;
  animation: orb-drift 26s var(--ease-in-out) infinite alternate;
}
.backdrop__orb--a { background: var(--violet); left: -20vmax; top: -24vmax; }
.backdrop__orb--b { background: var(--cyan); right: -26vmax; top: 20vh; animation-delay: -8s; opacity: 0.22; }
.backdrop__orb--c { background: var(--lime); left: 30vw; bottom: -40vmax; animation-delay: -14s; opacity: 0.14; }
.backdrop__grid {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(70% 60% at 50% 30%, #000 10%, transparent 75%);
  opacity: 0.5;
}
@keyframes orb-drift {
  to { transform: translate3d(8vmax, 6vmax, 0) scale(1.12); }
}

.stage {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: 0;
  transition: opacity 1.4s var(--ease-out);
}
.stage__canvas {
  width: 100%;
  height: 100%;
}
.has-webgl .stage { opacity: 1; }
.has-webgl .backdrop { opacity: 0; }

/* ---------- header ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  height: var(--header-h);
  transition: background var(--t-med) var(--ease-out), border-color var(--t-med) var(--ease-out), transform var(--t-med) var(--ease-out);
  border-bottom: 1px solid transparent;
}
.site-header.is-scrolled {
  background: rgb(6 7 10 / 0.72);
  backdrop-filter: blur(18px) saturate(150%);
  -webkit-backdrop-filter: blur(18px) saturate(150%);
  border-bottom-color: var(--line);
}
.site-header.is-hidden {
  transform: translateY(-100%);
}
.site-header__inner {
  height: 100%;
  display: flex;
  align-items: center;
  gap: var(--s-6);
}
.brand {
  display: inline-flex;
  flex: none;
}
.brand img {
  height: 36px;
  width: auto;
}
.site-header__actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: var(--s-3);
}

/* ---------- desktop navigation ---------- */
.nav__list {
  display: flex;
  align-items: center;
  gap: var(--s-1);
}
.nav__item {
  position: relative;
}
.nav__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 40px;
  padding-inline: 14px;
  border-radius: var(--r-pill);
  color: var(--text-2);
  font-size: var(--fs-sm);
  font-weight: 500;
  transition: color var(--t-fast), background var(--t-fast);
}
.nav__link:hover,
.nav__item:focus-within > .nav__link,
.nav__link.is-active {
  color: var(--text);
  background: var(--glass-2);
}
.nav__chev {
  width: 14px;
  height: 14px;
  transition: transform var(--t-fast) var(--ease-out);
}
.has-menu:hover .nav__chev,
.has-menu:focus-within .nav__chev {
  transform: rotate(180deg);
}

.nav__panel {
  position: absolute;
  top: 100%;
  left: 50%;
  width: min(760px, calc(100vw - 48px));
  padding-top: 14px;
  transform: translate(-50%, 8px);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--t-fast) var(--ease-out), transform var(--t-med) var(--ease-out), visibility 0s linear var(--t-fast);
}
.has-menu:hover .nav__panel,
.has-menu:focus-within .nav__panel {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, 0);
  transition-delay: 0s;
}
.nav__panel-inner {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: var(--s-5);
  padding: var(--s-5);
  border-radius: var(--r-md);
  background: rgb(13 15 20 / 0.94);
  border: 1px solid var(--line-2);
  backdrop-filter: blur(24px) saturate(160%);
  -webkit-backdrop-filter: blur(24px) saturate(160%);
  box-shadow: 0 30px 80px -20px rgb(0 0 0 / 0.8);
}
.nav__panel-intro {
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
  padding: var(--s-3);
  border-radius: var(--r-sm);
  background: linear-gradient(160deg, color-mix(in oklab, var(--violet) 22%, transparent), transparent 70%);
}
.nav__panel-blurb {
  color: var(--text-2);
  font-size: var(--fs-sm);
  line-height: 1.5;
}
.nav__panel-intro .link-arrow {
  margin-top: auto;
}
.nav__panel-list {
  display: grid;
  gap: var(--s-1);
}

.menu-card {
  display: flex;
  gap: var(--s-3);
  padding: var(--s-3);
  border-radius: var(--r-sm);
  transition: background var(--t-fast);
}
.menu-card:hover,
.menu-card:focus-visible {
  background: var(--glass-2);
}
.menu-card__icon {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  flex: none;
  border-radius: var(--r-xs);
  color: var(--accent);
  background: color-mix(in oklab, var(--accent) 14%, transparent);
  border: 1px solid color-mix(in oklab, var(--accent) 30%, transparent);
}
.menu-card__text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.menu-card__title {
  font-weight: 600;
  font-size: var(--fs-sm);
}
.menu-card__desc {
  color: var(--text-3);
  font-size: var(--fs-xs);
  line-height: 1.45;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  place-items: center;
  border-radius: var(--r-pill);
  background: var(--glass-2);
  border: 1px solid var(--line);
}
.nav-toggle .icon {
  width: 22px;
  height: 22px;
}
.nav-toggle__close,
.nav-toggle[aria-expanded='true'] .nav-toggle__open {
  display: none;
}
.nav-toggle[aria-expanded='true'] .nav-toggle__close {
  display: block;
}

/* ---------- mobile navigation ---------- */
.mobile-nav {
  position: fixed;
  inset: var(--header-h) 0 0;
  z-index: 49;
  overflow-y: auto;
  background: rgb(6 7 10 / 0.96);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: var(--s-5) var(--pad-x) var(--s-8);
}
.mobile-nav[hidden] {
  display: none;
}
.mobile-nav__inner {
  display: flex;
  flex-direction: column;
  gap: var(--s-2);
  max-width: 560px;
  margin-inline: auto;
}
.mobile-nav__group {
  border-bottom: 1px solid var(--line);
  padding-block: var(--s-3);
}
.mobile-nav__link {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  padding-block: var(--s-2);
}
.mobile-nav__sub {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--s-2);
  margin-top: var(--s-2);
}
.mobile-nav__sub a {
  display: flex;
  align-items: center;
  gap: var(--s-2);
  padding: var(--s-2) var(--s-3);
  border-radius: var(--r-xs);
  background: var(--glass);
  color: var(--text-2);
  font-size: var(--fs-sm);
}
.mobile-nav__sub .icon {
  color: var(--accent);
}
.mobile-nav__actions {
  display: grid;
  gap: var(--s-3);
  margin-top: var(--s-5);
}

@media (max-width: 1100px) {
  .nav { display: none; }
  .nav-toggle { display: grid; }
}
@media (max-width: 520px) {
  .hide-sm { display: none !important; }
  .site-header__actions .btn--primary { display: none; }
}

/* ---------- footer ---------- */
.site-footer {
  position: relative;
  z-index: 2;
  padding-top: var(--s-9);
  padding-bottom: var(--s-6);
  background: linear-gradient(180deg, transparent, rgb(6 7 10 / 0.92) 18%);
  border-top: 1px solid var(--line);
}
.site-footer__top {
  display: grid;
  grid-template-columns: 1.6fr repeat(4, 1fr);
  gap: var(--s-7) var(--gutter);
}
.site-footer__brand img {
  height: 48px;
  width: auto;
}
.site-footer__about {
  margin-top: var(--s-5);
  color: var(--text-2);
  font-size: var(--fs-sm);
  max-width: 40ch;
}
.contact-list {
  display: grid;
  gap: var(--s-3);
  margin-top: var(--s-5);
  font-size: var(--fs-sm);
}
.contact-list li {
  display: flex;
  gap: var(--s-3);
  align-items: flex-start;
  color: var(--text-2);
}
.contact-list .icon {
  color: var(--lime);
  margin-top: 2px;
}
.contact-list a:hover {
  color: var(--text);
}
.site-footer__title {
  font-family: var(--font-display);
  font-size: var(--fs-sm);
  font-weight: 600;
  margin-bottom: var(--s-4);
}
.site-footer__col ul {
  list-style: none;
  padding: 0;
  display: grid;
  gap: var(--s-3);
  font-size: var(--fs-sm);
}
.site-footer__col a {
  color: var(--text-2);
  transition: color var(--t-fast);
}
.site-footer__col a:hover {
  color: var(--text);
}
.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-4);
  margin-top: var(--s-8);
  padding-top: var(--s-5);
  border-top: 1px solid var(--line);
  color: var(--text-3);
  font-size: var(--fs-xs);
}
.site-footer__tagline {
  font-family: var(--font-display);
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--text-2);
}
.social {
  display: flex;
  gap: var(--s-2);
}
.social a {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: var(--r-pill);
  background: var(--glass-2);
  border: 1px solid var(--line);
  color: var(--text-2);
  transition: color var(--t-fast), border-color var(--t-fast), background var(--t-fast);
}
.social a:hover {
  color: var(--lime-ink);
  background: var(--lime);
  border-color: var(--lime);
}

@media (max-width: 1100px) {
  .site-footer__top { grid-template-columns: repeat(3, 1fr); }
  .site-footer__brand { grid-column: 1 / -1; }
}
@media (max-width: 680px) {
  .site-footer__top { grid-template-columns: 1fr 1fr; }
}

.site-footer a,
.contact-list a {
  text-decoration: none;
}