/* =========================
   Липкая шапка и слои
   ========================= */

/* Шапка стоит выше page-transition слоёв, но сама не перекрывает клики
   вне внутреннего контейнера благодаря pointer-events: none на обёртке. */
.site-header {
  position: sticky;
  top: 14px;
  z-index: var(--z-header);
  padding-block: 14px;
  pointer-events: none;
}

.header-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-areas:
    "logo theme"
    "nav nav";
  gap: 10px;
  min-height: auto;
  padding: 10px;
  border: 1px solid color-mix(in srgb, var(--color-border) 84%, transparent);
  border-radius: var(--radius-xl);
  background: linear-gradient(
    135deg,
    color-mix(in srgb, var(--color-card) 88%, transparent),
    color-mix(in srgb, var(--color-brand-subtle) 76%, transparent)
  );
  box-shadow:
    var(--shadow-soft),
    0 1px 0 color-mix(in srgb, #ffffff 22%, transparent) inset;
  backdrop-filter: blur(18px);
  pointer-events: auto;
}

/* =========================
   Логотип и меню контактов
   ========================= */

.logo {
  grid-area: logo;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  justify-content: center;
  gap: 12px;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  min-height: 64px;
  padding: 6px 17px 6px 7px;
  border: 1px solid color-mix(in srgb, var(--color-border) 34%, transparent);
  border-radius: var(--radius-pill);
  background: color-mix(in srgb, var(--color-page) 34%, transparent);
  color: var(--color-text);
  text-decoration: none;
  transition:
    background-color var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast),
    transform var(--transition-fast),
    box-shadow var(--transition-fast);
}

.logo:hover {
  border-color: var(--color-border);
  background: color-mix(in srgb, var(--color-page) 66%, transparent);
  transform: translateY(-1px);
  box-shadow: 0 10px 24px
    color-mix(in srgb, var(--color-accent) 8%, transparent);
}

.logo:active {
  transform: translateY(0);
}

.logo:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--color-accent) 32%, transparent);
  outline-offset: 3px;
}

.logo-menu {
  grid-area: logo;
  position: relative;
  z-index: var(--z-header-dropdown);
  justify-self: stretch;
  width: 100%;
  min-width: 0;
}

/* Невидимая зона под логотипом помогает не закрывать dropdown при движении мыши
   от логотипа к меню. На тач-устройствах меню открывает JavaScript. */
.logo-menu::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 0;
  width: min(100%, 320px);
  height: 14px;
  pointer-events: none;
}

/* Dropdown выше самой шапки: иначе он может прятаться под соседними слоями
   во время анимаций темы и переходов страниц. */
.logo-dropdown {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  z-index: var(--z-header-dropdown);
  display: grid;
  gap: 8px;
  width: min(400px, calc(100vw - 40px));
  padding: 10px;
  border: 1px solid color-mix(in srgb, var(--color-border) 78%, transparent);
  border-radius: var(--radius-lg);
  background: linear-gradient(
    135deg,
    color-mix(in srgb, var(--color-card) 94%, transparent),
    color-mix(in srgb, var(--color-brand-subtle) 82%, transparent)
  );
  box-shadow:
    var(--shadow-soft),
    0 24px 60px color-mix(in srgb, #000000 18%, transparent);
  backdrop-filter: blur(18px);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(-6px) scale(0.98);
  transform-origin: left top;
  transition:
    opacity var(--transition-fast),
    visibility var(--transition-fast),
    transform var(--transition-fast);
}

.logo-dropdown__item {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  align-items: center;
  gap: 12px;
  min-height: 58px;
  padding: 8px 10px;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  color: var(--color-text);
  text-decoration: none;
  transition:
    background-color var(--transition-fast),
    border-color var(--transition-fast),
    transform var(--transition-fast);
}

.logo-dropdown__item:hover {
  border-color: var(--color-border);
  background: color-mix(in srgb, var(--color-page) 72%, transparent);
  transform: translateY(-1px);
}

.logo-dropdown__mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 14px;
  background:
    radial-gradient(
      circle at 32% 24%,
      color-mix(in srgb, #ffffff 62%, transparent) 0%,
      transparent 34%
    ),
    linear-gradient(135deg, var(--color-brand), var(--color-accent));
  color: #ffffff;
  font-family: var(--font-heading);
  font-size: 11px;
  font-weight: 900;
  line-height: 1;
  box-shadow: 0 10px 22px
    color-mix(in srgb, var(--color-accent) 18%, transparent);
}

.logo-dropdown__text {
  display: grid;
  gap: 3px;
  min-width: 0;
}

.logo-dropdown__text strong {
  overflow: hidden;
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 850;
  line-height: 1.15;
  letter-spacing: -0.03em;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.logo-dropdown__text small {
  overflow: hidden;
  color: var(--color-text-muted);
  font-size: 14px;
  line-height: 1.25;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.logo-dropdown__mark--github {
  background:
    radial-gradient(
      circle at 32% 24%,
      color-mix(in srgb, #ffffff 72%, transparent) 0%,
      transparent 34%
    ),
    linear-gradient(135deg, var(--color-brand-soft), var(--color-brand));
  box-shadow: 0 10px 22px
    color-mix(in srgb, var(--color-accent) 18%, transparent);
}

.logo-dropdown__mark--github::before {
  content: "";
  width: 24px;
  height: 24px;
  background: #111111;

  -webkit-mask: url("../img/logos/github.svg") center / contain no-repeat;

  mask: url("../img/logos/github.svg") center / contain no-repeat;
}

.logo-dropdown__item:hover .logo-dropdown__mark--github {
  background:
    radial-gradient(
      circle at 32% 24%,
      color-mix(in srgb, #ffffff 78%, transparent) 0%,
      transparent 34%
    ),
    linear-gradient(135deg, var(--color-brand-soft), var(--color-accent-hover));
}

.logo-dropdown__mark--telegram {
  background: transparent;
  box-shadow: none;
}

.logo-dropdown__mark--telegram img {
  width: 34px;
  height: 34px;
  object-fit: contain;
  border-radius: 999px;
  box-shadow: 0 10px 22px
    color-mix(in srgb, var(--color-accent) 16%, transparent);
}

.logo-dropdown__item:hover .logo-dropdown__mark--telegram img {
  transform: translateY(-1px) scale(1.03);
}

.logo-dropdown__mark--telegram img {
  transition:
    transform var(--transition-fast),
    box-shadow var(--transition-fast);
}

.logo-menu.is-open .logo-dropdown,
.logo-menu:not(.logo-menu--touch):focus-within .logo-dropdown {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0) scale(1);
}

@media (hover: hover) and (pointer: fine) {
  .logo-menu:hover .logo-dropdown {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0) scale(1);
  }

  .logo-menu:hover::after {
    pointer-events: auto;
  }
}

.logo-mark {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  width: 62px;
  height: 62px;
  overflow: visible;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.logo-mark--crest {
  overflow: hidden;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  padding: 6px;
  background: color-mix(in srgb, #ffffff 88%, transparent);
  box-shadow:
    0 10px 24px color-mix(in srgb, var(--color-accent) 8%, transparent),
    0 1px 0 color-mix(in srgb, #ffffff 44%, transparent) inset;
  transition:
    background-color var(--transition-fast),
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}

.logo-mark--crest::before {
  content: "";
  position: absolute;
  inset: 4px;
  z-index: 0;
  border-radius: inherit;
  background: color-mix(in srgb, #ffffff 92%, transparent);
  pointer-events: none;
}

.logo-mark--crest img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: contain;
  filter: saturate(0.9) contrast(0.96);
}

.logo:hover .logo-mark--crest {
  border-color: var(--color-border);
  background: color-mix(in srgb, #ffffff 96%, transparent);
}

.logo-text {
  min-width: 0;
  overflow: visible;
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -0.04em;
  text-align: center;
  white-space: normal;
  overflow-wrap: break-word;
  hyphens: auto;
}

/* =========================
   Нижний логотип партии
   ========================= */

.site-footer {
  position: relative;
  z-index: var(--z-page);
  margin-top: -70px;
  padding: 0 0 32px;
}

.site-footer__inner {
  display: flex;
  justify-content: center;
}

.site-footer__party-link {
  display: grid;
  place-items: center;
  width: min(230px, 58vw);
  min-height: 86px;
  text-decoration: none;
  transition:
    opacity var(--transition-fast),
    transform var(--transition-fast),
    filter var(--transition-fast);
}

.site-footer__party-link:hover {
  opacity: 0.9;
  transform: translateY(-2px);
}

.site-footer__party-link:active {
  transform: translateY(0);
}

.site-footer__party-link:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--color-accent) 32%, transparent);
  outline-offset: 8px;
}

.site-footer__party-logo {
  grid-area: 1 / 1;
  width: 100%;
  height: auto;
  max-width: none;
  transition: opacity var(--transition-fast);
}

.site-footer__party-logo--dark {
  opacity: 0;
}

html[data-theme="dark"] .site-footer__party-logo--light {
  opacity: 0;
}

html[data-theme="dark"] .site-footer__party-logo--dark {
  opacity: 1;
}

@media (prefers-color-scheme: dark) {
  html:not([data-theme="light"]) .site-footer__party-logo--light {
    opacity: 0;
  }

  html:not([data-theme="light"]) .site-footer__party-logo--dark {
    opacity: 1;
  }
}

/* =========================
   Переключатель темы
   ========================= */

.theme-toggle {
  grid-area: theme;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  justify-self: end;
  min-height: 46px;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  padding: 0 12px 0 8px;
  background: transparent;
  color: var(--color-text-muted);
  font-family: var(--font-heading);
  font-size: 12px;
  font-weight: 800;
  line-height: 1;
  white-space: nowrap;
  cursor: pointer;
  transition:
    background-color var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast),
    transform var(--transition-fast),
    box-shadow var(--transition-fast);
}

.theme-toggle:hover {
  border-color: var(--color-border);
  background: color-mix(in srgb, var(--color-page) 72%, transparent);
  color: var(--color-text);
  transform: translateY(-1px);
}

.theme-toggle:active {
  transform: translateY(0);
}

.theme-toggle:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--color-accent) 32%, transparent);
  outline-offset: 3px;
}

.theme-toggle__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  width: 30px;
  height: 30px;
  border-radius: 999px;
  background:
    radial-gradient(
      circle at 32% 26%,
      color-mix(in srgb, #ffffff 64%, transparent) 0%,
      transparent 34%
    ),
    linear-gradient(135deg, var(--color-brand), var(--color-accent));
  color: #ffffff;
  font-family: system-ui, sans-serif;
  font-size: 17px;
  font-weight: 900;
  line-height: 1;
  box-shadow: 0 10px 22px
    color-mix(in srgb, var(--color-accent) 20%, transparent);
}

.theme-toggle__text {
  color: inherit;
}

html[data-theme="dark"] .theme-toggle__icon {
  background:
    radial-gradient(
      circle at 62% 34%,
      color-mix(in srgb, #ffffff 52%, transparent) 0%,
      transparent 30%
    ),
    linear-gradient(135deg, #173f3e, var(--color-accent));
}

@media (prefers-color-scheme: dark) {
  html:not([data-theme="light"]) .theme-toggle__icon {
    background:
      radial-gradient(
        circle at 62% 34%,
        color-mix(in srgb, #ffffff 52%, transparent) 0%,
        transparent 30%
      ),
      linear-gradient(135deg, #173f3e, var(--color-accent));
  }
}

/* =========================
   Основная навигация
   ========================= */

.site-nav {
  grid-area: nav;
  display: flex;
  align-items: center;
  gap: 6px;
  width: 100%;
  min-width: 0;
  padding: 6px;
  border: 1px solid color-mix(in srgb, var(--color-border) 58%, transparent);
  border-radius: var(--radius-pill);
  background: color-mix(in srgb, var(--color-page) 42%, transparent);
  overflow-x: auto;
  scrollbar-width: thin;
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 1 0 auto;
  min-height: 40px;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  padding: 0 13px;
  color: var(--color-text-muted);
  font-family: var(--font-heading);
  font-size: 12px;
  font-weight: 800;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
  transition:
    background-color var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast),
    transform var(--transition-fast),
    box-shadow var(--transition-fast);
}

.site-nav a:hover {
  border-color: var(--color-border);
  background: color-mix(in srgb, var(--color-page) 72%, transparent);
  color: var(--color-text);
  transform: translateY(-1px);
}

.site-nav a:active {
  transform: translateY(0);
}

.site-nav a:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--color-accent) 32%, transparent);
  outline-offset: 3px;
}

/* =========================
   Адаптация шапки
   ========================= */

@media (max-width: 760px) {
  .site-header {
    top: 8px;
    padding-block: 8px;
  }

  .header-inner {
    gap: 8px;
    padding: 8px;
    border-radius: var(--radius-lg);
  }

  .logo {
    grid-template-columns: 46px minmax(0, 1fr);
    gap: 8px;
    min-height: 46px;
    padding: 5px 10px 5px 6px;
  }

  .logo-mark {
    width: 46px;
    height: 46px;
  }

  .logo-mark--crest {
    padding: 5px;
  }

  .logo-text {
    font-size: 13px;
    line-height: 1.12;
  }

  .site-footer {
    margin-top: -34px;
    padding-bottom: 24px;
  }

  .site-footer__party-link {
    width: min(180px, 62vw);
    min-height: 72px;
  }

  .logo-dropdown {
    top: calc(100% + 8px);
    width: min(330px, calc(100vw - 32px));
    border-radius: var(--radius-lg);
  }

  .logo-dropdown__item {
    grid-template-columns: 38px minmax(0, 1fr);
    min-height: 54px;
  }

  .logo-dropdown__mark {
    width: 38px;
    height: 38px;
    border-radius: 13px;
  }

  .logo-dropdown__text strong {
    font-size: 12px;
  }

  .logo-dropdown__text small {
    font-size: 13px;
  }

  .logo-dropdown__mark--telegram img {
    width: 32px;
    height: 32px;
  }

  .site-nav {
    padding: 5px;
    border-radius: var(--radius-lg);
  }

  .site-nav a {
    flex: 0 0 auto;
    min-height: 38px;
    padding-inline: 12px;
    font-size: 11px;
  }

  .theme-toggle {
    min-height: 42px;
    padding: 0 7px;
  }

  .theme-toggle__text {
    display: none;
  }
}

@media (max-width: 380px) {
  .theme-toggle {
    width: 42px;
    padding: 0;
  }

  .theme-toggle__icon {
    width: 28px;
    height: 28px;
    font-size: 16px;
  }
}