/* Общая шапка сайта: плашки как на главной (компактные), кабинет — только иконка дома + выпадающее меню.
   Требует на странице уже заданных :root / [data-theme] токенов (--sp2, --color-primary, …). */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: background var(--tr), border-color var(--tr);
}
.header-wrap {
  container-name: headbar;
  container-type: inline-size;
  padding-block: var(--sp3) var(--sp4);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: clamp(0.35rem, 0.8vw, 0.65rem);
  flex-wrap: nowrap;
}
.header-mid {
  display: flex;
  align-items: center;
  gap: clamp(0.25rem, 0.6vw, 0.5rem);
  flex: 1 1 auto;
  min-width: 0;
  justify-content: center;
}
.header-top-right {
  display: flex;
  align-items: center;
  gap: var(--sp2);
  flex-shrink: 0;
}
.logo {
  display: flex;
  align-items: center;
  gap: var(--sp3);
  text-decoration: none;
  color: inherit;
  flex-shrink: 0;
}
.logo-text {
  font-family: var(--fb);
  font-size: var(--text-lg);
  font-weight: 600;
  font-style: normal;
  letter-spacing: -0.01em;
  line-height: 1;
  color: var(--color-text-muted);
}
.logo-text .logo-mentor {
  color: var(--color-primary);
  font-weight: 600;
}
.tg-link-header {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp2);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-tg);
  background: var(--color-tg-hl);
  padding: var(--sp2) var(--sp4);
  border-radius: 100px;
  transition: opacity var(--tr);
}
.tg-link-header.tg-compact {
  padding: var(--sp2) var(--sp3);
  font-size: clamp(0.7rem, 0.65rem + 0.35vw, 0.82rem);
  font-weight: 600;
  white-space: nowrap;
  flex-shrink: 0;
}
.tg-link-header.tg-compact svg {
  width: 14px;
  height: 14px;
}
.tg-link-header:hover {
  opacity: 0.8;
}
.tg-link-header:focus-visible {
  outline: 2px solid var(--color-tg);
  outline-offset: 2px;
  opacity: 1;
}
.tg-link-header svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}
.mail-link-header.mail-oneline {
  padding: var(--sp2) var(--sp4);
}
.mail-link-header.mail-oneline .mail-address {
  font-size: clamp(0.65rem, 0.6rem + 0.35vw, 0.8rem);
  font-weight: 600;
  letter-spacing: -0.025em;
  white-space: nowrap;
  max-width: min(42vw, 13.5rem);
  overflow: hidden;
  text-overflow: ellipsis;
}
.mail-link-header {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp2);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-primary);
  background: var(--color-primary-hl);
  padding: var(--sp2) var(--sp4);
  border-radius: 100px;
  transition: opacity var(--tr);
  flex-shrink: 0;
}
.mail-link-header:hover {
  opacity: 0.85;
}
.mail-link-header:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  opacity: 1;
}
.mail-link-header svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}
.auth-details {
  position: relative;
}
.auth-summary {
  position: relative;
  list-style: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  cursor: pointer;
  color: var(--color-primary);
  background: var(--color-primary-hl);
  padding: var(--sp2);
  border-radius: 100px;
  border: 1px solid var(--color-border);
  transition: opacity var(--tr);
}
.auth-summary::-webkit-details-marker {
  display: none;
}
.auth-summary::marker {
  content: "";
}
.auth-summary:hover {
  opacity: 0.88;
}
.auth-summary:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}
.auth-summary svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  color: var(--color-primary);
  display: block;
}
.auth-panel {
  position: absolute;
  right: 0;
  top: calc(100% + 6px);
  z-index: 120;
  width: min(288px, calc(100vw - 2rem));
  padding: var(--sp4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  text-align: left;
}
.auth-panel p {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.5;
  margin: 0 0 var(--sp3);
}
.auth-panel-stack {
  display: flex;
  flex-direction: column;
  gap: var(--sp2);
}
.auth-panel .auth-panel-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp2);
  font-size: var(--text-sm);
  font-weight: 600;
  color: #fff;
  background: linear-gradient(
    135deg,
    color-mix(in srgb, var(--color-primary) 88%, #0f3f46 12%),
    color-mix(in srgb, var(--color-primary) 74%, #0f3f46 26%)
  );
  padding: var(--sp2) var(--sp4);
  border-radius: 100px;
  text-decoration: none;
  transition: opacity var(--tr);
}
.auth-panel .auth-panel-link:hover {
  opacity: 0.9;
}
.auth-panel .auth-panel-link svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}
.auth-panel .auth-panel-link.auth-panel-link--ghost {
  margin-top: 0;
  background: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-border);
  box-shadow: none;
}
.auth-panel .auth-panel-link.auth-panel-link--ghost:hover {
  background: var(--color-primary-hl);
  opacity: 1;
}
.auth-panel-stack .auth-panel-link + .auth-panel-link {
  margin-top: 0;
}
.auth-panel-logout-form {
  margin: 0;
}
.auth-panel-logout-btn {
  width: 100%;
  box-sizing: border-box;
}
.theme-btn {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  transition: background var(--tr), color var(--tr);
}
.theme-btn:hover {
  background: var(--color-surface-offset);
  color: var(--color-text);
}
.theme-btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

@media (min-width: 721px) {
  .container.header-wrap {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    column-gap: var(--sp3);
    row-gap: var(--sp2);
  }
  .header-mid {
    flex: unset;
    justify-content: center;
    gap: var(--sp3);
  }
  .header-top-right {
    gap: var(--sp3);
  }
  .logo-text {
    overflow: visible;
    text-overflow: clip;
  }
  .mail-link-header.mail-oneline .mail-address {
    max-width: none;
    overflow: visible;
    text-overflow: clip;
  }
}

@media (max-width: 720px) {
  .container.header-wrap {
    padding-inline: var(--sp4);
    gap: 0.2rem;
  }
  .header-mid {
    flex: 1 1 auto;
    min-width: 0;
    justify-content: center;
    gap: 0.25rem;
    flex-wrap: nowrap;
  }
  .logo {
    flex: 0 1 auto;
    min-width: 0;
    gap: var(--sp2);
  }
  .logo-text {
    font-size: clamp(0.8rem, 0.72rem + 1.5vw, 0.95rem);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .mail-link-header.mail-oneline .mail-address {
    max-width: 100%;
  }
  .tg-link-header.tg-compact,
  .mail-link-header.mail-oneline,
  .auth-summary {
    justify-content: center;
    gap: 0;
    padding: var(--sp2);
    flex-shrink: 0;
  }
  .tg-link-header.tg-compact svg {
    width: 16px;
    height: 16px;
  }
  .header-link-text,
  .mail-link-header.mail-oneline .mail-address {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
  }
  .theme-btn {
    width: 34px;
    height: 34px;
  }
}

@container headbar (max-width: 720px) {
  .tg-link-header.tg-compact,
  .mail-link-header.mail-oneline,
  .auth-summary {
    justify-content: center;
    gap: 0;
    padding: var(--sp2);
  }
  .tg-link-header.tg-compact svg {
    width: 16px;
    height: 16px;
  }
  .header-link-text,
  .mail-link-header.mail-oneline .mail-address {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
  }
}