:root {
  --guma-nav-height: 68px;
  --guma-nav-bg: rgba(7, 10, 17, 0.96);
  --guma-nav-border: rgba(255, 255, 255, 0.11);
  --guma-nav-text: #f6f8fb;
  --guma-nav-muted: #aeb7c7;
  --guma-nav-accent: #ff6a2a;
}

html {
  scroll-padding-top: calc(var(--guma-nav-height) + 18px);
}

body {
  padding-top: var(--guma-nav-height) !important;
}

/* The server always emits this single header. Legacy page-specific headers are
   suppressed so generated SEO pages and the PPT Studio page cannot diverge. */
.seo-site-header,
.seo-static-nav,
.seo-static-footer,
body > header.site-header:not(.guma-global-header) {
  display: none !important;
}

.guma-global-header,
.guma-global-header * {
  box-sizing: border-box;
}

.guma-global-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 10050;
  height: var(--guma-nav-height);
  color: var(--guma-nav-text);
  background: var(--guma-nav-bg);
  border-bottom: 1px solid var(--guma-nav-border);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
}

.guma-nav-shell {
  width: min(1540px, 100%);
  height: 100%;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 22px;
}

.guma-nav-logo {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  height: 44px;
  color: inherit;
  text-decoration: none;
}

.guma-nav-logo img {
  display: block;
  width: auto;
  height: 36px;
  max-width: 150px;
  object-fit: contain;
  filter: brightness(0) invert(1);
  opacity: 0.92;
}

.guma-nav-main {
  min-width: 0;
  flex: 1 1 auto;
  height: 100%;
  display: flex;
  align-items: stretch;
  gap: clamp(10px, 1.15vw, 22px);
}

.guma-nav-link,
.guma-products-trigger {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 0;
  padding: 0;
  background: transparent;
  color: var(--guma-nav-text);
  font: inherit;
  font-size: 14px;
  font-weight: 520;
  line-height: 1;
  white-space: nowrap;
  text-decoration: none;
  cursor: pointer;
}

.guma-nav-link::after,
.guma-products-trigger::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--guma-nav-accent);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 180ms ease;
}

.guma-nav-link:hover,
.guma-nav-link:focus-visible,
.guma-products-trigger:hover,
.guma-products-trigger:focus-visible,
.guma-nav-link[aria-current="page"] {
  color: #fff;
}

.guma-nav-link:hover::after,
.guma-nav-link:focus-visible::after,
.guma-products-trigger:hover::after,
.guma-products-trigger:focus-visible::after,
.guma-nav-link[aria-current="page"]::after {
  transform: scaleX(1);
}

.guma-products {
  position: relative;
  display: flex;
  align-items: stretch;
}

.guma-products-trigger svg {
  transition: transform 180ms ease;
}

.guma-products.is-open .guma-products-trigger svg {
  transform: rotate(180deg);
}

.guma-products-panel {
  position: absolute;
  top: calc(100% - 1px);
  left: 50%;
  width: min(590px, calc(100vw - 32px));
  padding: 22px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  visibility: hidden;
  opacity: 0;
  transform: translate(-50%, 10px);
  pointer-events: none;
  background: rgba(12, 16, 25, 0.985);
  border: 1px solid var(--guma-nav-border);
  border-radius: 0 0 18px 18px;
  box-shadow: 0 24px 65px rgba(0, 0, 0, 0.38);
  transition: opacity 160ms ease, transform 160ms ease, visibility 160ms;
}

.guma-products:is(:hover, :focus-within, .is-open) .guma-products-panel {
  visibility: visible;
  opacity: 1;
  transform: translate(-50%, 0);
  pointer-events: auto;
}

.guma-product-group h3 {
  margin: 0 0 11px;
  color: var(--guma-nav-muted);
  font-size: 12px;
  font-weight: 650;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.guma-product-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.guma-product-grid a {
  display: block;
  padding: 12px;
  color: #fff;
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 10px;
  font-size: 14px;
  font-weight: 620;
  line-height: 1.2;
  text-decoration: none;
  transition: border-color 160ms ease, background 160ms ease, transform 160ms ease;
}

.guma-product-grid a:hover,
.guma-product-grid a:focus-visible {
  background: rgba(255, 106, 42, 0.1);
  border-color: rgba(255, 106, 42, 0.55);
  transform: translateY(-1px);
}

.guma-product-grid small {
  display: block;
  margin-top: 5px;
  color: var(--guma-nav-muted);
  font-size: 11px;
  font-weight: 450;
}

.guma-nav-actions {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 10px;
}

.guma-language {
  position: relative;
}

.guma-language-toggle,
.guma-mobile-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.16);
  color: var(--guma-nav-text);
  background: rgba(255, 255, 255, 0.045);
  cursor: pointer;
}

.guma-language-toggle {
  height: 36px;
  min-width: 48px;
  padding: 0 11px;
  border-radius: 999px;
  font-size: 12px;
}

.guma-language-menu {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  min-width: 150px;
  padding: 7px;
  display: none;
  background: #101622;
  border: 1px solid var(--guma-nav-border);
  border-radius: 12px;
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
}

.guma-language.is-open .guma-language-menu {
  display: grid;
}

.guma-language-menu a {
  padding: 9px 10px;
  color: var(--guma-nav-text);
  border-radius: 8px;
  font-size: 13px;
  text-decoration: none;
}

.guma-language-menu a:hover,
.guma-language-menu a:focus-visible {
  background: rgba(255, 255, 255, 0.08);
}

.guma-demo-cta {
  min-height: 38px;
  padding: 0 17px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: #fff;
  background: linear-gradient(135deg, #ff7b35, #ef4d18);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  box-shadow: 0 7px 22px rgba(239, 77, 24, 0.25);
  font-size: 13px;
  font-weight: 650;
  white-space: nowrap;
  text-decoration: none;
}

.guma-demo-cta:hover,
.guma-demo-cta:focus-visible {
  filter: brightness(1.08);
}

.guma-mobile-toggle {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: 12px;
  flex-direction: column;
  gap: 5px;
}

.guma-mobile-toggle span {
  width: 18px;
  height: 1.5px;
  background: currentColor;
  transition: transform 180ms ease, opacity 180ms ease;
}

.guma-mobile-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

.guma-mobile-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.guma-mobile-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

.guma-mobile-nav {
  position: fixed;
  inset: var(--guma-nav-height) 0 0;
  z-index: 10049;
  display: none;
  overflow: auto;
  padding: 22px 24px 42px;
  color: var(--guma-nav-text);
  background: #080c14;
}

.guma-mobile-nav.is-open {
  display: block;
}

.guma-mobile-nav > a,
.guma-mobile-products summary {
  min-height: 52px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  color: inherit;
  font-size: 16px;
  font-weight: 560;
  text-decoration: none;
}

.guma-mobile-products summary {
  justify-content: space-between;
  list-style: none;
  cursor: pointer;
}

.guma-mobile-products summary::-webkit-details-marker {
  display: none;
}

.guma-mobile-product-grid {
  padding: 12px 0 18px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.guma-mobile-product-grid a {
  padding: 12px;
  color: #eaf0f8;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 9px;
  font-size: 13px;
  text-decoration: none;
}

.guma-mobile-demo {
  margin-top: 22px;
  justify-content: center;
  border: 0 !important;
  border-radius: 12px;
  background: linear-gradient(135deg, #ff7b35, #ef4d18);
}

@media (min-width: 1181px) {
  .guma-mobile-toggle,
  .guma-mobile-nav {
    display: none !important;
  }
}

@media (max-width: 1180px) {
  .guma-nav-main,
  .guma-language,
  .guma-demo-cta {
    display: none;
  }

  .guma-nav-shell {
    padding: 0 18px;
  }

  .guma-nav-logo {
    margin-right: auto;
  }
}

@media (max-width: 520px) {
  :root {
    --guma-nav-height: 62px;
  }

  .guma-nav-logo img {
    height: 31px;
    max-width: 132px;
  }

  .guma-nav-shell {
    padding: 0 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .guma-global-header *,
  .guma-global-header *::before,
  .guma-global-header *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}