:root {
  --iaparts-header-bg: rgba(5, 6, 8, 0.86);
  --iaparts-header-border: rgba(255, 255, 255, 0.10);
  --iaparts-header-text: #f7f7f8;
  --iaparts-header-muted: #9ca3af;
  --iaparts-control-bg: rgba(255, 255, 255, 0.075);
  --iaparts-control-border: rgba(255, 255, 255, 0.16);
  --iaparts-control-hover: rgba(255, 255, 255, 0.13);
}

html[data-theme="light"] {
  --iaparts-header-bg: rgba(250, 250, 249, 0.88);
  --iaparts-header-border: rgba(15, 23, 42, 0.11);
  --iaparts-header-text: #15171b;
  --iaparts-header-muted: #68707c;
  --iaparts-control-bg: rgba(15, 23, 42, 0.055);
  --iaparts-control-border: rgba(15, 23, 42, 0.15);
  --iaparts-control-hover: rgba(15, 23, 42, 0.10);
  --bg: #f7f8fa;
  --bg-soft: #ffffff;
  --card: #ffffff;
  --card-soft: #f1f3f6;
  --text-main: #0f172a;
  --text-muted: #596273;
  --border-soft: #dfe3e8;
  --ink: #201c19;
  --paper: #f7f8fa;
  --cream: #ffffff;
  --panel: #ffffff;
  --muted: #6f675f;
  --line: rgba(24, 24, 27, 0.13);
}

html[data-theme="dark"] {
  color-scheme: dark;
}

html[data-theme="light"] {
  color-scheme: light;
}

.iaparts-original-header {
  display: none !important;
}

.iaparts-original-controls {
  display: none !important;
}

.iaparts-unified-header,
.iaparts-unified-header * {
  box-sizing: border-box;
}

.iaparts-unified-header {
  position: sticky;
  top: 0;
  z-index: 9999;
  width: 100%;
  border-bottom: 1px solid var(--iaparts-header-border);
  background: var(--iaparts-header-bg);
  color: var(--iaparts-header-text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
  box-shadow: 0 1px 18px rgba(0, 0, 0, 0.08);
  backdrop-filter: blur(22px) saturate(140%);
  -webkit-backdrop-filter: blur(22px) saturate(140%);
}

html.iaparts-utility-mode .iaparts-unified-header {
  position: sticky;
  top: 0;
}

html.iaparts-utility-mode body {
  padding-top: 0 !important;
}

html.iaparts-utility-mode[data-theme="dark"] body {
  background-color: #050608;
}

html.iaparts-utility-mode body img,
html.iaparts-utility-mode body iframe {
  max-width: 100%;
}

html.iaparts-utility-mode body img {
  height: auto;
}

.iaparts-unified-header__inner {
  display: flex;
  align-items: center;
  width: min(100%, 1240px);
  min-height: 84px;
  margin: 0 auto;
  padding: 12px clamp(16px, 3.4vw, 44px);
}

.iaparts-unified-header__brand {
  display: flex;
  align-items: center;
  min-width: 0;
  color: inherit;
  text-decoration: none;
}

.iaparts-unified-header__logo {
  display: grid;
  place-items: center;
  flex: 0 0 58px;
  width: 58px;
  height: 58px;
  overflow: hidden;
  border: 1px solid var(--iaparts-header-border);
  border-radius: 12px;
  background: #ffffff;
}

.iaparts-unified-header__logo img {
  display: block;
  width: auto !important;
  height: auto !important;
  max-width: 100% !important;
  max-height: 100% !important;
  aspect-ratio: auto !important;
  object-fit: contain !important;
  object-position: center !important;
}

.iaparts-unified-header__copy {
  min-width: 0;
  margin-left: 15px;
  line-height: 1.15;
}

.iaparts-unified-header__name {
  display: block;
  margin: 0;
  color: var(--iaparts-header-text);
  font-size: clamp(1.35rem, 2vw, 1.8rem);
  font-weight: 500;
  letter-spacing: 0.01em;
}

.iaparts-unified-header__subtitle {
  display: block;
  max-width: min(52vw, 520px);
  margin-top: 5px;
  overflow: hidden;
  color: var(--iaparts-header-muted);
  font-size: clamp(0.74rem, 1.15vw, 0.9rem);
  font-weight: 400;
  line-height: 1.25;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.iaparts-unified-header__controls {
  display: flex;
  align-items: center;
  flex: 0 0 auto;
  gap: 8px;
  margin-left: auto;
  padding-left: 14px;
}

.iaparts-unified-header__language,
.iaparts-unified-header__theme {
  height: 40px;
  min-height: 40px !important;
  max-height: 40px !important;
  border: 1px solid var(--iaparts-control-border);
  border-radius: 999px;
  background: var(--iaparts-control-bg);
  color: var(--iaparts-header-text);
  box-shadow: none;
  transition: background-color 160ms ease, border-color 160ms ease, transform 160ms ease;
}

.iaparts-unified-header__language {
  width: 54px;
  min-width: 54px !important;
  max-width: 54px !important;
  padding: 0;
  appearance: none;
  -webkit-appearance: none;
  color-scheme: inherit;
  font: inherit;
  font-size: 0.78rem;
  font-weight: 650;
  letter-spacing: 0.08em;
  text-align: center;
  text-align-last: center;
  line-height: 1;
  cursor: pointer;
}

.iaparts-unified-header__theme {
  display: grid;
  place-items: center;
  width: 40px;
  min-width: 40px !important;
  max-width: 40px !important;
  padding: 0;
  cursor: pointer;
}

.iaparts-unified-header__language:hover,
.iaparts-unified-header__theme:hover {
  border-color: var(--iaparts-header-muted);
  background: var(--iaparts-control-hover);
}

.iaparts-unified-header__language:focus-visible,
.iaparts-unified-header__theme:focus-visible,
.iaparts-unified-header__brand:focus-visible {
  outline: 2px solid #f58412;
  outline-offset: 3px;
}

.iaparts-unified-header__theme svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.65;
}

.iaparts-unified-header__moon {
  display: none;
}

html[data-theme="light"] .iaparts-unified-header__sun {
  display: none;
}

html[data-theme="light"] .iaparts-unified-header__moon {
  display: block;
}

@media (max-width: 640px) {
  html.iaparts-utility-mode body {
    padding-top: 0 !important;
  }

  .iaparts-unified-header__inner {
    min-height: 70px;
    padding: 10px 13px;
  }

  .iaparts-unified-header__logo {
    flex-basis: 46px;
    width: 46px;
    height: 46px;
    border-radius: 10px;
  }

  .iaparts-unified-header__copy {
    margin-left: 10px;
  }

  .iaparts-unified-header__name {
    font-size: 1.18rem;
  }

  .iaparts-unified-header__subtitle {
    max-width: 40vw;
    margin-top: 3px;
    font-size: 0.66rem;
  }

  .iaparts-unified-header__controls {
    gap: 6px;
    padding-left: 8px;
  }

  .iaparts-unified-header__language {
    width: 46px;
  }

  .iaparts-unified-header__language,
  .iaparts-unified-header__theme {
    height: 36px;
    min-height: 36px !important;
    max-height: 36px !important;
  }

  .iaparts-unified-header__theme {
    width: 36px;
    min-width: 36px !important;
    max-width: 36px !important;
  }

  .iaparts-unified-header__language {
    min-width: 46px !important;
    max-width: 46px !important;
  }
}

@media (max-width: 390px) {
  .iaparts-unified-header__subtitle {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .iaparts-unified-header__language,
  .iaparts-unified-header__theme {
    transition: none;
  }
}