.site-header {
  position: fixed;
  top: var(--admin-height);
  left: 0;
  right: 0;
  z-index: 20;
  border-bottom: 1px solid var(--color-line);
  background: color-mix(in srgb, var(--color-surface) 90%, transparent);
  box-shadow: var(--shadow-1);
}

@supports (backdrop-filter: blur(10px)) {
  .site-header {
    backdrop-filter: blur(10px);
  }
}

.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  min-height: var(--header-height);
}

.brand {
  display: inline-flex;
  align-items: center;
  position: relative;
  width: 110px;
  aspect-ratio: 2 / 1;
  overflow: hidden;
  border-radius: 8px;
}

.brand img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  object-position: 70% center;
  transform: scale(1.2);
  transform-origin: center;
}

.brand .logo-darkmode {
  display: none;
}

html[data-theme='dark'] .brand .logo-darkmode {
  display: block;
}

html[data-theme='dark'] .brand .logo-lightmode {
  display: none;
}

.main-nav {
  display: flex;
  align-items: center;
}

.main-nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.main-nav-list li {
  margin: 0;
  padding: 0;
}

.nav-toggle,
.main-nav a,
.main-nav-list a,
.btn,
.theme-switch-btn,
.lang-switch a {
  min-height: 44px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-line);
  font-family: 'Segoe UI Semibold', 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--color-text);
  background: color-mix(in srgb, var(--color-surface) 92%, transparent);
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background-color 180ms ease,
    color 180ms ease,
    box-shadow 180ms ease;
}

.main-nav a,
.main-nav-list a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 16px;
}

.main-nav a:hover,
.main-nav-list a:hover,
.nav-toggle:hover,
.theme-switch-btn:hover,
.lang-switch a:hover,
.btn:hover {
  transform: translateY(-1px);
  text-decoration: none;
  border-color: var(--color-brand);
}

.main-nav a.is-active,
.main-nav .current-menu-item > a,
.main-nav .current_page_item > a,
.main-nav .current-menu-parent > a,
.lang-switch a.is-active {
  border-color: var(--color-brand);
  background: linear-gradient(135deg, var(--color-brand), var(--color-brand-soft));
  color: #0a140f;
  box-shadow: 0 8px 18px rgba(0, 191, 99, 0.24);
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  padding: 10px 16px;
  cursor: pointer;
}

.lang-switch,
.theme-switch {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-line);
  background: color-mix(in srgb, var(--color-surface) 94%, transparent);
}

.lang-switch a,
.theme-switch-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  padding: 0 10px;
  cursor: pointer;
}

.lang-switch a {
  padding: 0;
}

.lang-flag {
  width: 24px;
  height: 24px;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--color-line) 70%, transparent);
  object-fit: cover;
  display: block;
}

.theme-icon-svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-brand), var(--color-brand-soft));
  border-color: color-mix(in srgb, var(--color-brand-strong) 70%, #000 30%);
  color: #0a140f;
  box-shadow: 0 10px 24px rgba(0, 191, 99, 0.28);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--color-brand-strong), var(--color-brand));
}

.btn-secondary {
  background: color-mix(in srgb, var(--color-surface-strong) 95%, transparent);
}

.btn-secondary:hover {
  background: color-mix(in srgb, var(--color-brand) 12%, var(--color-surface) 88%);
}

.text-link {
  display: inline-block;
  min-height: 44px;
  padding: 11px 0;
  font-weight: 600;
  color: color-mix(in srgb, var(--color-text) 75%, var(--color-text-muted));
  border-bottom: 1px solid color-mix(in srgb, var(--color-line) 70%, transparent);
}

.text-link:hover {
  color: var(--color-text);
  border-color: var(--color-brand);
  text-decoration: none;
}

.footer-link-btn {
  appearance: none;
  border: 0;
  margin: 0;
  padding: 0;
  background: none;
  color: var(--color-brand-strong);
  font: inherit;
  text-decoration: none;
  cursor: pointer;
}

.footer-link-btn:hover {
  text-decoration: underline;
}

.cookie-banner {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 45;
  padding: 14px;
}

.cookie-banner[hidden] {
  display: none !important;
}

.cookie-banner-inner {
  max-width: var(--container);
  margin: 0 auto;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--color-surface) 96%, transparent);
  box-shadow: var(--shadow-2);
  padding: 16px;
  display: grid;
  gap: 10px;
}

.cookie-banner h2 {
  margin: 0;
  font-size: 1rem;
}

.cookie-banner p {
  margin: 0;
  color: var(--color-text-muted);
}

.cookie-banner-meta {
  font-size: 0.9rem;
}

.cookie-banner-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

@media (max-width: 640px) {
  .cookie-banner-actions {
    display: grid;
  }
}

.btn:focus-visible,
.main-nav a:focus-visible,
.main-nav-list a:focus-visible,
.nav-toggle:focus-visible,
.theme-switch-btn:focus-visible,
.lang-switch a:focus-visible,
.text-link:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--color-brand);
  outline-offset: 2px;
}

.theme-switch-btn.is-active {
  border-color: var(--color-brand);
  background: color-mix(in srgb, var(--color-brand) 20%, var(--color-surface));
  color: var(--color-text);
}

.panel {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--color-surface) 95%, transparent);
  box-shadow: var(--shadow-1);
  padding: 28px;
}

section.panel {
  margin-top: 30px;
}

.signal-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.signal-item {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  padding: 14px;
  background: color-mix(in srgb, var(--color-surface-strong) 95%, transparent);
}

.signal-item strong {
  display: block;
  margin-bottom: 4px;
  color: var(--color-text);
  font-family: 'Segoe UI Semibold', 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
}

.signal-item span {
  color: var(--color-text-muted);
}

form,
.form-stack {
  display: grid;
  gap: 16px;
  max-width: 760px;
}

fieldset {
  margin: 0;
  padding: 16px;
  border: 1px solid color-mix(in srgb, var(--color-line) 72%, transparent);
  border-radius: var(--radius-sm);
  display: grid;
  gap: 12px;
}

.form-switcher {
  margin-bottom: 28px;
}

fieldset[hidden] {
  display: none !important;
}

legend {
  font-family: 'Segoe UI Semibold', 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
  font-size: 0.95rem;
  color: var(--color-text);
  padding: 0 6px;
}

label {
  display: inline-block;
  margin-bottom: 6px;
  color: var(--color-text);
  font-weight: 600;
  font-size: 0.94rem;
}

input,
textarea,
select {
  width: 100%;
  border: 1px solid color-mix(in srgb, var(--color-line) 84%, transparent);
  border-radius: 10px;
  background: var(--color-surface);
  color: var(--color-text);
  padding: 11px 12px;
  font: inherit;
}

textarea {
  min-height: 130px;
  resize: vertical;
}

.checkbox-row label {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-weight: 500;
  margin-bottom: 0;
}

.checkbox-row input[type='checkbox'] {
  width: 18px;
  height: 18px;
  margin-top: 2px;
}

.form-helper {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.field-error {
  margin: 6px 0 0;
  color: var(--color-danger);
  font-size: 0.9rem;
  display: none;
}

.field-error.is-visible {
  display: block;
}

.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.notice {
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--color-line);
  background: color-mix(in srgb, var(--color-surface) 94%, transparent);
  font-size: 0.95rem;
}

.notice-success {
  border-color: color-mix(in srgb, var(--color-brand) 58%, var(--color-line));
  background: color-mix(in srgb, var(--color-brand) 12%, var(--color-surface));
}

.notice-error {
  border-color: color-mix(in srgb, var(--color-danger) 58%, var(--color-line));
  background: color-mix(in srgb, var(--color-danger) 12%, var(--color-surface));
}

.site-footer {
  border-top: 1px solid var(--color-line);
  padding: 30px 0 42px;
}

.footer-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 14px;
  flex-wrap: wrap;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

@media (max-width: 980px) {
  .brand {
    width: 137px;
  }

  .header-row {
    min-height: var(--header-height-mobile);
  }

  .nav-toggle {
    display: inline-flex;
  }

  .main-nav {
    position: absolute;
    top: var(--header-height-mobile);
    left: 0;
    right: 0;
    display: none;
    padding: 14px;
    max-height: calc(100dvh - var(--header-height-mobile) - var(--admin-height));
    overflow-y: auto;
    border-bottom: 1px solid var(--color-line);
    background: color-mix(in srgb, var(--color-surface) 96%, transparent);
  }

  .main-nav.is-open {
    display: flex;
  }

  .main-nav-list {
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
  }

  .main-nav a,
  .main-nav-list a {
    width: 100%;
    justify-content: flex-start;
    font-size: 1rem;
  }

  .signal-strip {
    grid-template-columns: 1fr;
  }
}