/*
 * HBTH shared shell v2
 * Global header and footer only. Tool content stays untouched.
 */

.site-header.site-header--v2 {
  position: sticky;
  top: 0;
  z-index: 10005;
  min-height: 76px;
  padding: 0;
  border: 0;
  border-bottom: 1px solid color-mix(in srgb, var(--ds-color-border) 75%, transparent);
  background: color-mix(in srgb, var(--ds-color-canvas) 88%, transparent);
  box-shadow: none;
  backdrop-filter: blur(20px) saturate(150%);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1200px, calc(100% - 48px));
  min-height: 76px;
  margin: 0 auto;
  gap: 24px;
}

.site-brand {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  gap: 12px;
  color: var(--ds-color-text);
  text-decoration: none;
}

.site-brand__mark {
  display: grid;
  width: 36px;
  height: 42px;
  place-items: center;
  flex-shrink: 0;
}

.site-brand__mark img {
  display: block;
  width: 27px;
  height: 38px;
  object-fit: contain;
}

.site-brand__copy {
  display: grid;
  gap: 2px;
  min-width: 0;
}

.site-brand__name {
  font-family: var(--ds-font-sans);
  font-size: 1rem;
  font-weight: 830;
  line-height: 1;
  letter-spacing: -0.035em;
}

.site-brand__tagline {
  max-width: 230px;
  overflow: hidden;
  color: var(--ds-color-text-secondary);
  font-family: var(--ds-font-sans);
  font-size: 0.68rem;
  font-weight: 600;
  line-height: 1.25;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.header-actions.header-actions--v2 {
  position: static;
  display: flex;
  align-items: center;
  width: auto;
  height: auto;
  padding: 0;
  gap: 22px;
  overflow: visible;
  border: 0;
  background: transparent;
  box-shadow: none;
  transform: none;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 3px;
}

.site-nav__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 14px;
  border: 0;
  border-radius: var(--ds-radius-full);
  color: var(--ds-color-text-secondary);
  font-family: var(--ds-font-sans);
  font-size: var(--ds-text-sm);
  font-weight: 680;
  text-decoration: none;
  transition:
    background var(--ds-duration-fast),
    color var(--ds-duration-fast);
}

.site-nav__link i {
  display: none;
}

.site-nav__link::after {
  position: absolute;
  right: 14px;
  bottom: 6px;
  left: 14px;
  height: 2px;
  border-radius: 2px;
  background: var(--ds-color-brand);
  content: "";
  opacity: 0;
  transform: scaleX(0.4);
  transition:
    opacity var(--ds-duration-fast),
    transform var(--ds-duration-base) var(--ds-ease-out);
}

.site-nav__link:hover {
  background: var(--ds-color-surface-subtle);
  color: var(--ds-color-text);
}

.site-nav__link.is-active {
  color: var(--ds-color-text);
}

.site-nav__link.is-active::after {
  opacity: 1;
  transform: scaleX(1);
}

.header-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.site-header--v2 .language-dropdown__trigger {
  min-width: 132px;
  min-height: 40px;
  padding: 0 11px;
  border: 1px solid var(--ds-color-border);
  border-radius: var(--ds-radius-full);
  background: color-mix(in srgb, var(--ds-color-surface) 82%, transparent);
  box-shadow: none;
}

.site-header--v2 .language-dropdown__trigger:hover {
  background: var(--ds-color-surface-subtle);
  border-color: var(--ds-color-border-strong);
  transform: none;
}

.site-header--v2 .language-dropdown__current {
  gap: 8px;
}

.site-header--v2 .language-dropdown__current .language-flag {
  width: 22px;
  height: 15px;
  border-radius: 4px;
  box-shadow: none;
}

.site-header--v2 .language-dropdown__current-name {
  font-size: 0.8rem;
  font-weight: 650;
}

.site-header--v2 .language-dropdown__menu {
  right: 0;
  left: auto;
  width: 286px;
  max-height: min(480px, calc(100vh - 100px));
  padding: 8px;
  gap: 0;
  overflow: hidden;
  border-color: var(--ds-color-border);
  border-radius: 16px;
  background: var(--ds-color-surface);
  box-shadow: 0 18px 48px rgba(17, 20, 24, 0.16);
  backdrop-filter: none;
}

.language-menu__header {
  display: flex;
  align-items: center;
  gap: 0;
  padding: 8px 9px 12px;
  margin-bottom: 4px;
  border-bottom: 1px solid var(--ds-color-border);
}

.language-menu__header-icon {
  display: none;
}

.language-menu__header > span:last-child {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  gap: 16px;
}

.language-menu__header strong {
  color: var(--ds-color-text);
  font-family: var(--ds-font-sans);
  font-size: 0.82rem;
  font-weight: 720;
  line-height: 1.25;
}

.language-menu__header small {
  color: var(--ds-color-text-secondary);
  font-family: var(--ds-font-sans);
  font-size: 0.66rem;
  font-weight: 600;
}

.language-menu__options {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2px;
  max-height: 360px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--ds-color-border-strong) transparent;
}

.site-header--v2 .language-option {
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr) 16px;
  justify-content: stretch;
  min-height: 42px;
  padding: 0 10px;
  gap: 10px;
  border: 1px solid transparent;
  border-radius: 10px;
  text-align: left;
}

.site-header--v2 .language-option .language-flag {
  width: 22px;
  height: 15px;
  border-radius: 4px;
}

.site-header--v2 .language-option::after {
  color: var(--ds-color-text);
  content: "";
  font-size: 0.76rem;
  font-weight: 900;
  text-align: center;
}

.site-header--v2 .language-option:hover {
  border-color: transparent;
  background: var(--ds-color-surface-subtle);
}

.site-header--v2 .language-option.is-active {
  border-color: transparent;
  background: var(--ds-color-surface-subtle);
  color: var(--ds-color-text);
}

.site-header--v2 .language-option.is-active::after {
  content: "✓";
}

.site-header--v2 #theme-toggle {
  width: 40px;
  height: 40px;
  padding: 0;
  border: 1px solid var(--ds-color-border);
  border-radius: 50%;
  background: color-mix(in srgb, var(--ds-color-surface) 82%, transparent);
  color: var(--ds-color-text);
  box-shadow: none;
}

.site-header--v2 #theme-toggle:hover {
  border-color: var(--ds-color-border-strong);
  background: var(--ds-color-surface-subtle);
  transform: none;
}

.theme-toggle__icon {
  display: grid;
  width: 100%;
  height: 100%;
  place-items: center;
  border-radius: inherit;
  background: transparent;
  color: var(--ds-color-text);
  transition:
    background var(--ds-duration-fast),
    color var(--ds-duration-fast);
}

.site-header--v2 #theme-toggle:hover .theme-toggle__icon {
  background: transparent;
  color: var(--ds-color-text);
}

.theme-toggle__copy {
  display: none;
}

.site-header--v2 .mobile-menu-btn {
  display: none !important;
}

.header-menu__meta {
  display: none;
}

.site-header--v2 a:focus-visible,
.site-header--v2 button:focus-visible,
.site-footer--v2 a:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--ds-color-focus) 55%, transparent);
  outline-offset: 3px;
}

/* Footer */
.site-footer.site-footer--v2 {
  position: relative;
  width: 100%;
  margin: 0;
  padding: 0;
  overflow: hidden;
  border: 0;
  background: #141619;
  color: #f5f6f2;
}

.site-footer__monogram {
  position: absolute;
  top: 26px;
  right: max(24px, calc((100vw - 1200px) / 2));
  color: rgba(245, 246, 242, 0.035);
  font-family: var(--ds-font-sans);
  font-size: clamp(7rem, 18vw, 15rem);
  font-weight: 900;
  line-height: 0.8;
  letter-spacing: -0.08em;
  pointer-events: none;
  user-select: none;
}

.site-footer__inner {
  position: relative;
  z-index: 1;
  width: min(1200px, calc(100% - 48px));
  margin: 0 auto;
}

.site-footer__main {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(430px, 0.9fr);
  align-items: start;
  gap: clamp(64px, 10vw, 140px);
  padding: 74px 0 66px;
}

.site-footer__brand {
  display: flex;
  align-items: flex-start;
  max-width: 460px;
  gap: 18px;
}

.site-footer__mark {
  display: grid;
  width: 48px;
  height: 56px;
  place-items: center;
  flex-shrink: 0;
}

.site-footer__mark img {
  display: block;
  width: 34px;
  height: 49px;
  object-fit: contain;
}

.site-footer__name {
  display: block;
  margin-bottom: 10px;
  color: #f5f6f2;
  font-family: var(--ds-font-sans);
  font-size: clamp(1.35rem, 2vw, 1.7rem);
  font-weight: 800;
  letter-spacing: -0.04em;
}

.site-footer__brand p {
  max-width: 380px;
  margin: 0;
  color: rgba(245, 246, 242, 0.62);
  font-family: var(--ds-font-sans);
  font-size: 0.95rem;
  line-height: 1.7;
}

.site-footer__columns {
  display: grid;
  grid-template-columns: 0.7fr 1.3fr;
  gap: 48px;
}

.site-footer__label {
  display: block;
  margin-bottom: 17px;
  color: rgba(245, 246, 242, 0.42);
  font-family: var(--ds-font-sans);
  font-size: 0.68rem;
  font-weight: 750;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.site-footer__nav {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
}

.site-footer__nav a {
  color: rgba(245, 246, 242, 0.82);
  font-family: var(--ds-font-sans);
  font-size: 0.9rem;
  font-weight: 620;
  text-decoration: none;
  transition:
    color var(--ds-duration-fast),
    transform var(--ds-duration-fast);
}

.site-footer__nav a:hover {
  color: var(--ds-color-brand);
  transform: translateX(3px);
}

.site-footer__status-line {
  display: flex;
  align-items: center;
  gap: 9px;
  color: #f5f6f2;
  font-family: var(--ds-font-sans);
  font-size: 0.9rem;
  font-weight: 680;
}

.site-footer__status-dot,
.header-menu__status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #62c8ad;
  box-shadow: 0 0 0 5px rgba(98, 200, 173, 0.12);
}

.site-footer__status-note {
  display: block;
  max-width: 240px;
  margin-top: 12px;
  color: rgba(245, 246, 242, 0.5);
  font-family: var(--ds-font-sans);
  font-size: 0.78rem;
  line-height: 1.55;
}

.site-footer__visits {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  max-width: 270px;
  margin: 20px 0 0;
  padding: 14px 0;
  gap: 18px;
  border-top: 1px solid rgba(245, 246, 242, 0.1);
  border-bottom: 1px solid rgba(245, 246, 242, 0.1);
}

.site-footer__visit {
  min-width: 0;
}

.site-footer__visit dt {
  margin: 0 0 5px;
  color: rgba(245, 246, 242, 0.46);
  font-family: var(--ds-font-sans);
  font-size: 0.68rem;
  font-weight: 650;
}

.site-footer__visit dd {
  margin: 0;
  color: #f5f6f2;
  font-family: var(--ds-font-sans);
  font-size: 1rem;
  font-variant-numeric: tabular-nums;
  font-weight: 780;
}

.site-footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  border-top: 1px solid rgba(245, 246, 242, 0.1);
  color: rgba(245, 246, 242, 0.42);
  font-family: var(--ds-font-sans);
  font-size: 0.75rem;
  font-weight: 600;
}

@media (max-width: 960px) {
  .site-brand__tagline {
    display: none;
  }

  .site-footer__main {
    grid-template-columns: 1fr;
    gap: 52px;
  }

  .site-footer__columns {
    width: min(100%, 520px);
  }
}

@media (max-width: 860px) {
  .site-header.site-header--v2,
  .site-header__inner {
    min-height: 66px;
  }

  .site-header__inner {
    width: min(100% - 32px, 1200px);
  }

  .site-brand {
    gap: 9px;
  }

  .site-brand__mark {
    width: 30px;
    height: 36px;
  }

  .site-brand__mark img {
    width: 23px;
    height: 33px;
  }

  .site-brand__name {
    font-size: 0.96rem;
  }

  .site-header--v2 .mobile-menu-btn {
    position: relative;
    z-index: 10004;
    display: inline-flex !important;
    width: 42px;
    height: 42px;
    margin: 0;
    padding: 0;
    border: 1px solid var(--ds-color-border);
    border-radius: 50%;
    background: var(--ds-color-surface);
    color: var(--ds-color-text);
    box-shadow: var(--ds-shadow-sm);
  }

  .header-actions.header-actions--v2 {
    position: fixed;
    top: 0;
    right: 0;
    z-index: 10003;
    display: flex;
    align-items: stretch;
    flex-direction: column;
    width: min(360px, 86vw);
    height: 100dvh;
    padding: 86px 20px 26px;
    gap: 28px;
    overflow-y: auto;
    border: 0;
    border-left: 1px solid var(--ds-color-border);
    background:
      radial-gradient(circle at 90% 2%, color-mix(in srgb, var(--ds-color-brand) 14%, transparent), transparent 220px),
      var(--ds-color-surface);
    box-shadow: -24px 0 60px rgba(0, 0, 0, 0.2);
    transform: translateX(105%);
    transition: transform 320ms var(--ds-ease-out);
  }

  .header-actions.header-actions--v2.is-open {
    transform: translateX(0);
  }

  .site-nav {
    align-items: stretch;
    flex-direction: column;
    gap: 7px;
  }

  .site-nav__link {
    min-height: 52px;
    padding: 0 15px;
    gap: 13px;
    border: 1px solid transparent;
    border-radius: var(--ds-radius-md);
    font-size: 0.95rem;
  }

  .site-nav__link i {
    display: grid;
    width: 24px;
    place-items: center;
    color: var(--ds-color-text-tertiary);
    font-size: 1rem;
  }

  .site-nav__link:hover,
  .site-nav__link.is-active {
    border-color: var(--ds-color-border);
    background: var(--ds-color-surface-subtle);
  }

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

  .site-nav__link.is-active i {
    color: var(--ds-color-brand);
  }

  .header-controls {
    align-items: stretch;
    flex-direction: column;
    gap: 10px;
    padding-top: 24px;
    padding-right: 0;
    padding-bottom: 0;
    padding-left: 0;
    border: 0;
    border-top: 1px solid var(--ds-color-border);
    border-radius: 0;
    background: transparent;
    box-shadow: none;
  }

  .site-header--v2 .language-dropdown,
  .site-header--v2 .language-dropdown__trigger {
    width: 100%;
  }

  .site-header--v2 .language-dropdown__trigger {
    min-height: 52px;
    padding: 0 14px;
    border: 1px solid var(--ds-color-border);
    border-radius: var(--ds-radius-md);
    background: var(--ds-color-surface);
  }

  .site-header--v2 .language-dropdown__menu {
    position: static;
    width: 100%;
    max-height: 380px;
    margin-top: 10px;
    border-radius: var(--ds-radius-md);
    box-shadow: none;
    opacity: 1;
    transform: none;
    display: none;
  }

  .site-header--v2 .language-dropdown.is-open .language-dropdown__menu {
    display: flex;
  }

  .language-menu__options {
    grid-template-columns: 1fr;
    max-height: 290px;
  }

  .site-header--v2 #theme-toggle {
    width: 100%;
    height: 52px;
    justify-content: flex-start;
    padding: 0 10px;
    gap: 12px;
    border: 1px solid var(--ds-color-border);
    border-radius: var(--ds-radius-md);
    background: var(--ds-color-surface);
  }

  .site-header--v2 #theme-toggle::after {
    content: none !important;
  }

  .theme-toggle__icon {
    width: 32px;
    height: 32px;
    border-radius: 9px;
    background: var(--ds-color-surface-subtle);
    box-shadow: none;
  }

  .theme-toggle__copy {
    display: grid;
    gap: 2px;
    text-align: left;
  }

  .theme-toggle__copy strong {
    color: var(--ds-color-text);
    font-family: var(--ds-font-sans);
    font-size: 0.86rem;
    font-weight: 730;
    line-height: 1.2;
  }

  .theme-toggle__copy small {
    color: var(--ds-color-text-secondary);
    font-family: var(--ds-font-sans);
    font-size: 0.68rem;
    font-weight: 600;
    line-height: 1.2;
  }

  .header-menu__meta {
    display: flex;
    align-items: center;
    gap: 11px;
    margin-top: auto;
    padding: 16px;
    border: 1px solid var(--ds-color-border);
    border-radius: var(--ds-radius-md);
    background: var(--ds-color-surface-subtle);
    color: var(--ds-color-text-secondary);
    font-family: var(--ds-font-sans);
    font-size: 0.78rem;
    font-weight: 650;
  }

  .menu-backdrop {
    position: fixed;
    inset: 0;
    z-index: 10001;
    background: rgba(7, 8, 10, 0.56);
    opacity: 0;
    pointer-events: none;
    transition: opacity 240ms ease;
    backdrop-filter: blur(3px);
  }

  .menu-backdrop.is-visible {
    opacity: 1;
    pointer-events: auto;
  }
}

@media (max-width: 640px) {
  .site-footer__inner {
    width: min(100% - 32px, 1200px);
  }

  .site-footer__main {
    gap: 42px;
    padding: 56px 0 48px;
  }

  .site-footer__brand {
    gap: 14px;
  }

  .site-footer__columns {
    grid-template-columns: 1fr;
    gap: 38px;
  }

  .site-footer__bottom {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
  }

  .site-footer__monogram {
    top: 44px;
    right: -16px;
    font-size: 8rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .site-header--v2 *,
  .site-footer--v2 * {
    transition-duration: 0.01ms !important;
  }
}