/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-bg);
  padding-top: 8px;
}

.site-header-bar {
  position: relative;
  z-index: 102;
  min-height: var(--header-h);
  background: var(--color-bg);
}

/* Header frame lines — side horizontals + center notch */
.header-logo-line {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 277px;
  height: 48px;
  background: url('/img/header-line.svg') no-repeat center;
  pointer-events: none;
  z-index: 1;
}

.header-logo-line-left,
.header-logo-line-right {
  position: absolute;
  top: calc(50% - 23px);
  width: calc(50% - 166px);
  height: 1px;
  background: var(--color-ink);
  pointer-events: none;
  z-index: 1;
}

.header-logo-line-left {
  left: 28px;
}

.header-logo-line-left::after {
  content: '';
  position: absolute;
  right: 0;
  top: -1px;
  width: 33px;
  height: 1px;
  background: var(--color-ink);
  transform: rotate(215deg);
  transform-origin: bottom right;
}

.header-logo-line-right {
  right: 28px;
}

.header-logo-line-right::before {
  content: '';
  position: absolute;
  left: 0;
  top: -1px;
  width: 33px;
  height: 1px;
  background: var(--color-ink);
  transform: rotate(145deg);
  transform-origin: bottom left;
}

/* middle notch lines are drawn by header-line.svg — no CSS duplicates */
.header-logo-line-middle {
  display: none;
}

.site-header-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  min-height: var(--header-h);
  padding: 0 28px;
  /* padding-top: 45px; */
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-item {
  position: relative;
}

.nav-trigger,
.nav-home-link {
  appearance: none;
  border: none;
  background: none;
  padding: 8px 0;
  margin: 0;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-ink);
  transition: color 0.25s ease;
}

.nav-home-link {
  display: inline-block;
  text-decoration: none;
}

@media (hover: hover) {
  .nav-home-link:hover {
    color: var(--color-accent);
    text-decoration: none;
  }
}

.nav-sign {
  display: inline-block;
  min-width: 14px;
  text-align: center;
  font-size: 0;
}

.nav-sign::before {
  content: '+';
  font-size: 13px;
}

.nav-item.is-open .nav-trigger {
  color: var(--color-accent);
}

.nav-item.is-open .nav-sign::before {
  content: '−';
  color: var(--color-accent);
}

.site-logo-wrap {
  justify-self: center;
  position: relative;
  z-index: 103;
  align-self: end;
  padding-bottom: 18px;
}

.site-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}

.site-logo-img {
  display: block;
  height: 70px;
  width: auto;
  max-width: 170px;
  object-fit: contain;
}

.site-header-right {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 28px;
}

/* Language switcher */
.lang-switcher {
  position: relative;
}

.lang-icon,
.loader-download-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.lang-trigger {
  appearance: none;
  border: none;
  background: none;
  padding: 8px 0;
  margin: 0;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-ink);
  transition: color 0.25s ease;
}

.lang-sign {
  display: inline-block;
  min-width: 14px;
  text-align: center;
  font-size: 0;
}

.lang-sign::before {
  content: '+';
  font-size: 13px;
}

.lang-switcher.is-open .lang-trigger {
  color: var(--color-accent);
}

.lang-switcher.is-open .lang-sign::before {
  content: '−';
  color: var(--color-accent);
}

.lang-menu {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  min-width: 156px;
  margin: 0;
  padding: 10px 0;
  list-style: none;
  background: var(--color-panel);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(10px);
  transition:
    opacity 0.35s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.45s cubic-bezier(0.22, 1, 0.36, 1),
    visibility 0.35s;
  z-index: 120;
}

.lang-switcher.is-open .lang-menu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}

.lang-option-link {
  display: block;
  width: 100%;
  padding: 10px 18px;
  text-align: left;
  text-decoration: none;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #fff;
  opacity: 0;
  transform: translateY(14px);
  transition:
    color 0.25s ease,
    opacity 0.4s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.45s cubic-bezier(0.22, 1, 0.36, 1);
}

.lang-switcher.is-open .lang-option-link {
  opacity: 1;
  transform: translateY(0);
}

.lang-switcher.is-open .lang-option:nth-child(1) .lang-option-link { transition-delay: 0.05s; }
.lang-switcher.is-open .lang-option:nth-child(2) .lang-option-link { transition-delay: 0.1s; }
.lang-switcher.is-open .lang-option:nth-child(3) .lang-option-link { transition-delay: 0.15s; }

.lang-option-link:hover,
.lang-option-link.is-active {
  color: var(--color-accent);
}

.loader-download-trigger {
  appearance: none;
  border: none;
  background: none;
  padding: 8px 0;
  margin: 0;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-ink);
  transition: color 0.25s ease;
  white-space: nowrap;
}

@media (hover: hover) {
  .lang-trigger:hover,
  .loader-download-trigger:hover {
    color: var(--color-accent);
  }
}

.loader-modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: grid;
  place-items: center;
  padding: 24px;
}

.loader-modal[hidden] {
  display: none;
}

.loader-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(17, 17, 17, 0.55);
  backdrop-filter: blur(2px);
}

.loader-modal-panel {
  position: relative;
  width: min(100%, 460px);
  padding: 32px 28px 28px;
  background: var(--color-bg);
  border: 1px solid var(--color-ink);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.18);
}

.loader-modal-close {
  position: absolute;
  top: 12px;
  right: 14px;
  appearance: none;
  border: none;
  background: none;
  padding: 4px 8px;
  font-size: 24px;
  line-height: 1;
  color: var(--color-muted);
  cursor: pointer;
}

.loader-modal-eyebrow {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.loader-modal-title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: clamp(36px, 7vw, 48px);
  font-weight: 900;
  line-height: 0.95;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.loader-modal-hint {
  margin: 0 0 24px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--color-muted);
}

.loader-modal-label {
  display: block;
  margin-bottom: 10px;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.loader-modal-input {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--color-ink);
  background: transparent;
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-ink);
}

.loader-modal-input:focus {
  outline: none;
  border-color: var(--color-accent);
}

.loader-modal-error {
  margin: 12px 0 0;
  font-size: 12px;
  line-height: 1.5;
  color: #c0392b;
}

.loader-modal-actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 24px;
}

.loader-modal-actions .site-footer-btn {
  flex: 0 0 auto;
  min-width: 132px;
}

.loader-modal-submit:disabled {
  opacity: 0.55;
  cursor: wait;
  pointer-events: none;
}

.header-link {
  font-family: var(--font-mono);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-ink);
  text-decoration: none;
}

.header-link:hover {
  color: var(--color-accent);
}

/* Mega menu panel — rolls down / rolls up */
.mega-menu-panel {
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  z-index: 101;
  display: grid;
  grid-template-rows: 0fr;
  background: var(--color-panel);
  pointer-events: none;
  transition: grid-template-rows 0.55s cubic-bezier(0.22, 1, 0.36, 1);
}

.mega-menu-panel.is-visible {
  grid-template-rows: 1fr;
  pointer-events: auto;
}

.mega-menu-panel.is-closing {
  grid-template-rows: 0fr;
  pointer-events: none;
  transition: grid-template-rows 0.48s cubic-bezier(0.55, 0.05, 0.4, 1);
}

.mega-menu-panel-inner {
  overflow: hidden;
  min-height: 0;
  padding: 0 28px;
  opacity: 0;
  transform: translateY(-12px);
  transition:
    opacity 0.35s ease,
    transform 0.55s cubic-bezier(0.22, 1, 0.36, 1),
    padding 0.55s cubic-bezier(0.22, 1, 0.36, 1);
}

.mega-menu-panel.is-visible:not(.is-closing) .mega-menu-panel-inner {
  padding: 36px 28px 44px;
  opacity: 1;
  transform: translateY(0);
}

.mega-menu-panel.is-closing .mega-menu-panel-inner {
  padding: 0 28px;
  opacity: 0;
  transform: translateY(-16px);
  transition:
    opacity 0.28s ease,
    transform 0.42s cubic-bezier(0.55, 0.05, 0.4, 1),
    padding 0.48s cubic-bezier(0.55, 0.05, 0.4, 1);
}

.mega-menu-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 18px 56px;
  max-width: 1200px;
}

.mega-menu-panel .mega-link {
  opacity: 0;
  transform: translateY(-18px);
  transition:
    opacity 0.4s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.5s cubic-bezier(0.22, 1, 0.36, 1),
    color 0.3s ease;
  will-change: opacity, transform;
}

.mega-menu-panel.is-ready:not(.is-closing) .mega-link {
  opacity: 1;
  transform: translateY(0);
}

.mega-menu-panel.is-ready:not(.is-closing) .mega-link:nth-child(1) { transition-delay: 0.08s; }
.mega-menu-panel.is-ready:not(.is-closing) .mega-link:nth-child(2) { transition-delay: 0.13s; }
.mega-menu-panel.is-ready:not(.is-closing) .mega-link:nth-child(3) { transition-delay: 0.18s; }
.mega-menu-panel.is-ready:not(.is-closing) .mega-link:nth-child(4) { transition-delay: 0.23s; }
.mega-menu-panel.is-ready:not(.is-closing) .mega-link:nth-child(5) { transition-delay: 0.28s; }
.mega-menu-panel.is-ready:not(.is-closing) .mega-link:nth-child(6) { transition-delay: 0.33s; }
.mega-menu-panel.is-ready:not(.is-closing) .mega-link:nth-child(7) { transition-delay: 0.38s; }
.mega-menu-panel.is-ready:not(.is-closing) .mega-link:nth-child(8) { transition-delay: 0.43s; }
.mega-menu-panel.is-ready:not(.is-closing) .mega-link:nth-child(9) { transition-delay: 0.48s; }
.mega-menu-panel.is-ready:not(.is-closing) .mega-link:nth-child(10) { transition-delay: 0.53s; }
.mega-menu-panel.is-ready:not(.is-closing) .mega-link:nth-child(11) { transition-delay: 0.58s; }
.mega-menu-panel.is-ready:not(.is-closing) .mega-link:nth-child(12) { transition-delay: 0.63s; }

.mega-menu-panel.is-closing .mega-link {
  opacity: 0;
  transform: translateY(-10px);
  transition:
    opacity 0.2s ease,
    transform 0.28s cubic-bezier(0.55, 0.05, 0.4, 1);
  transition-delay: 0s !important;
}

.mega-link {
  display: inline-flex;
  align-items: baseline;
  gap: 14px;
  text-decoration: none;
  color: #fff;
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  line-height: 1;
  transition: color 0.3s ease;
}

.mega-link:hover {
  color: var(--color-accent);
}

.mega-index {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 400;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.55);
  transform: translateY(-0.35em);
  transition: color 0.3s ease;
}

.mega-link:hover .mega-index {
  color: var(--color-accent);
}

.nav-item .mega-menu {
  display: none;
}
@media (max-width: 900px) {
  :root {
    --header-h: 72px;
  }

  .header-logo-line,
  .header-logo-line-left,
  .header-logo-line-right {
    display: none;
  }

  .site-header-bar {
    border-bottom: 1px solid var(--color-ink);
  }

  .site-header-inner {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 14px 16px 12px;
    align-items: center;
  }

  .site-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 16px 20px;
    order: 2;
    padding-top: 0;
    width: 100%;
  }

  .site-logo-wrap {
    order: 1;
    justify-self: start;
    align-self: center;
    padding-bottom: 0;
  }

  .site-logo-img {
    height: 28px;
  }

  .site-header-right {
    order: 3;
    justify-self: start;
    flex-wrap: wrap;
    gap: 16px;
    width: 100%;
  }

  .mega-menu-panel.is-visible:not(.is-closing) .mega-menu-panel-inner {
    padding: 24px 16px 32px;
  }

  .mega-menu-grid {
    flex-direction: column;
    gap: 14px;
  }

  .mega-link {
    font-size: clamp(22px, 7vw, 28px);
  }

  .loader-modal {
    padding: 16px;
  }

  .loader-modal-panel {
    width: min(100%, 460px);
    padding: 28px 20px 24px;
  }
}

@media (max-width: 560px) {
  .site-nav {
    gap: 12px 16px;
  }

  .nav-trigger,
  .lang-trigger,
  .loader-download-trigger {
    font-size: 12px;
  }
}