/* Components: header, nav, buttons, tags, footer */

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-h);
  border-bottom: 1px solid transparent;
  transition: background-color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.site-header.is-scrolled,
.site-header.is-open {
  background: rgba(7, 9, 12, 0.86);
  border-bottom-color: var(--c-line);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  backdrop-filter: saturate(140%) blur(14px);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
  height: 100%;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--c-text);
  text-decoration: none;
  flex-shrink: 0;
}

.brand:hover {
  color: var(--c-text);
}

.brand__mark {
  width: 34px;
  height: 34px;
}

.brand__text {
  display: grid;
  line-height: 1;
}

.brand__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.5rem;
  letter-spacing: 0.08em;
}

.brand__by {
  margin-top: 0.2rem;
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--c-text-3);
}

.site-header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* Nav (desktop) */
.site-nav__list {
  display: flex;
  align-items: center;
  gap: clamp(0.25rem, 1.2vw, 1.25rem);
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav__list a {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 0.35rem;
  color: var(--c-text-2);
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--dur) var(--ease);
}

.site-nav__list a::after {
  content: "";
  position: absolute;
  left: 0.35rem;
  right: 0.35rem;
  bottom: 8px;
  height: 2px;
  background: var(--c-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur) var(--ease);
}

.site-nav__list a:hover,
.site-nav__list a[aria-current="page"],
.site-nav__list a.is-active {
  color: var(--c-text);
}

.site-nav__list a:hover::after,
.site-nav__list a[aria-current="page"]::after,
.site-nav__list a.is-active::after {
  transform: scaleX(1);
}

.site-nav__num,
.site-nav__meta {
  display: none;
}

/* Contact sits in the header CTA on desktop and in the menu list when collapsed */
@media (min-width: 1101px) {
  .site-nav__contact {
    display: none;
  }
}

.header-cta {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 1.1rem;
  border: 1px solid var(--c-line-strong);
  border-radius: 999px;
  color: var(--c-text);
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.header-cta:hover {
  color: var(--c-text);
  border-color: var(--c-accent);
  background: var(--c-accent-soft);
}

.nav-toggle {
  display: none;
  position: relative;
  width: 44px;
  height: 44px;
  border: 1px solid var(--c-line-strong);
  border-radius: 12px;
  background: var(--c-surface);
  color: var(--c-text);
  cursor: pointer;
}

.nav-toggle__bars,
.nav-toggle__bars::before,
.nav-toggle__bars::after {
  position: absolute;
  left: 50%;
  width: 18px;
  height: 1.5px;
  margin-left: -9px;
  background: currentColor;
  border-radius: 2px;
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}

.nav-toggle__bars {
  top: 50%;
}

.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  left: 0;
  margin-left: 0;
}

.nav-toggle__bars::before {
  transform: translateY(-6px);
}

.nav-toggle__bars::after {
  transform: translateY(6px);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars {
  background: transparent;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before {
  transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after {
  transform: rotate(-45deg);
}

/* Buttons */
.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.btn-row--center {
  justify-content: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 52px;
  padding: 0.75rem 1.6rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  text-align: center;
  transition: transform var(--dur) var(--ease), background-color var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease), color var(--dur) var(--ease);
}

.btn span[aria-hidden] {
  transition: transform var(--dur) var(--ease);
}

.btn:hover span[aria-hidden] {
  transform: translateX(3px);
}

.btn--primary {
  background: var(--c-text);
  color: #05070a;
}

.btn--primary:hover {
  color: #05070a;
  background: #ffffff;
  box-shadow: var(--glow-accent);
}

.btn--ghost {
  color: var(--c-text);
  border-color: var(--c-line-strong);
  background: rgba(255, 255, 255, 0.02);
}

.btn--ghost:hover {
  color: var(--c-text);
  border-color: var(--c-accent);
  background: var(--c-accent-soft);
}

/* Status */
.pulse {
  position: relative;
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-teal);
  flex-shrink: 0;
}

.pulse::after {
  content: "";
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 1px solid var(--c-teal);
  opacity: 0;
  animation: pulse 2.4s var(--ease) infinite;
}

@keyframes pulse {
  0% { transform: scale(0.6); opacity: 0.8; }
  100% { transform: scale(1.6); opacity: 0; }
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  width: fit-content;
  padding: 0.4rem 0.85rem;
  border: 1px solid rgba(63, 209, 191, 0.35);
  border-radius: 999px;
  background: var(--c-teal-soft);
  color: var(--c-teal);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.concept-label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-text-3);
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--c-line);
  background: var(--c-bg-raised);
  padding-top: var(--space-8);
  font-size: var(--fs-sm);
  color: var(--c-text-2);
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1.2fr 1fr;
  gap: var(--space-6);
  padding-bottom: var(--space-7);
}

.site-footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.4rem;
}

.site-footer a {
  color: var(--c-text-2);
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--c-text);
  text-decoration: underline;
}

.site-footer__brand {
  font-family: var(--font-display);
  font-size: var(--fs-lg);
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--c-text);
}

.site-footer__status {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin-top: var(--space-4);
  color: var(--c-teal);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.site-footer__label {
  margin-bottom: 0.6rem;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-text-3);
}

.site-footer__base {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-3) var(--space-6);
  padding-block: var(--space-5);
  border-top: 1px solid var(--c-line);
  font-size: var(--fs-xs);
}

.site-footer__base .muted {
  max-width: 80ch;
}

/* Text link with arrow */
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
}

.text-link span {
  transition: transform var(--dur) var(--ease);
}

.text-link:hover span {
  transform: translateX(4px);
}