main,
.main {
  padding-top: var(--header-h);
  box-sizing: border-box;
}

/* Header */
header,
.header {
  background: linear-gradient(
    180deg,
    rgba(45, 37, 26, 0.95) 0%,
    rgba(45, 37, 26, 0.00) 100%
  );
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);

  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  box-sizing: border-box;
  height: var(--header-h);

  display: grid;
  grid-template-columns: var(--grid-columns-default);
  align-items: center;
  padding: var(--header-padding-default);
}

/* Back link (for subpages) */
.back-link {
  grid-column: 1;
  justify-self: start;
  font-family: var(--font-retro);
  font-size: 22px;
  color: var(--text-primary);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 1px;
  line-height: 1;
  white-space: nowrap;
  border: 1px solid var(--text-secondary);
  padding: 4px 2px;
  height: 28px;
  width: 32px;
  text-align: center;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0;
  box-sizing: border-box;
}

.back-link:hover {
  background-color: var(--color-highlight);
  border-color: var(--color-highlight);
  color: var(--bg-primary);
}

/* Top navigation (for home page) */
.top-nav {
  grid-column: 1;
  justify-self: start;
  display: flex;
  align-items: center;
  gap: var(--space-8);
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  height: 28px;
}

.top-nav a {
  font-family: var(--font-retro);
  font-size: 20px;
  color: var(--text-secondary);
  text-decoration: none;
  letter-spacing: 1px;
  padding: 0 var(--space-8);
  line-height: 1;
  transition: color 0.2s ease;
  white-space: nowrap;
}

.top-nav a:nth-of-type(1):hover { color: var(--color-highlight); }
.top-nav a:nth-of-type(2):hover { color: var(--color-highlight); }
.top-nav a:nth-of-type(3):hover { color: var(--color-highlight); }
.top-nav a:nth-of-type(4):hover { color: var(--color-highlight); }

.top-dot {
  font-family: var(--font-retro);
  font-size: 14px;
  color: var(--warm-brown);
  letter-spacing: 1px;
  opacity: 0.6;
  pointer-events: none;
}

/* Centralized responsive styles for top-nav */
@media (max-width: 1000px) {
  .top-nav {
    position: fixed !important;
    top: var(--header-h);
    left: 0;
    width: 100%;
    height: var(--top-nav-h);
    justify-content: center;
    z-index: 999;
    padding: 4px 0;
    box-sizing: border-box;
    background: linear-gradient(
      180deg,
      rgba(45, 37, 26, 0.8) 0%,
      rgba(45, 37, 26, 0.0) 100%
    );
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
  }

}

/* Page title - centered */
.page-title {
  grid-column: 2;
  justify-self: center;
  font-family: var(--font-retro);
  font-size: clamp(1.4rem, 4vw, 1.8rem);
  font-weight: 400;
  letter-spacing: 4px;
  line-height: 1;
  color: var(--text-primary);
  text-transform: uppercase;
  margin: 0;
  pointer-events: none;
  flex-shrink: 0;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 28px;
  word-spacing: normal;
}

/* Language switcher - Right slot */
.lang-switch {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0 !important;
  height: 28px;
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  position: absolute;
  top: 50%;
  right: var(--space-12);
  transform: translateY(-50%);
  font-size: 0;
}

.lang-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-family: var(--font-retro);
  font-size: 20px;
  padding: 0;
  cursor: pointer;
  transition: all 0.2s;
  letter-spacing: 0;
  line-height: 1;
  height: 28px;
  width: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0;
  box-sizing: border-box;
  flex-shrink: 0;
  text-align: center;
  text-rendering: geometricPrecision;
}

.lang-btn:hover {
  background-color: var(--warm-brown);
  color: var(--bg-primary);
}

.lang-btn.active {
  color: var(--color-highlight);
}

.separator {
  color: var(--warm-brown);
  font-family: var(--font-retro);
  font-size: 20px !important;
  letter-spacing: 0;
  pointer-events: none;
  user-select: none;
  line-height: 1;
  margin: 0;
  padding: 0 !important;
  width: 8px !important;
  height: 28px !important;
  min-width: 8px !important;
  max-width: 8px !important;
  text-align: center;
  flex-shrink: 0;
  flex-grow: 0;
  display: flex !important;
  align-items: center;
  justify-content: center;
  text-rendering: geometricPrecision;
  font-feature-settings: "zero" 1;
  font-variant-numeric: tabular-nums;
  overflow: hidden;
  white-space: nowrap;
}

/* Define header layout options */
:root {
  --header-padding-default: 0 var(--space-12);
  --header-padding-compact: 0 var(--space-12);
  --header-padding-mobile: 0 var(--space-12);

  --grid-columns-default: 1fr auto 1fr;
  --grid-columns-compact: auto 1fr auto;
  --grid-columns-mobile: auto auto auto;
  
  /* Header sizing consistency */
  --lang-btn-size: 28px;
  --lang-btn-size-mobile: 24px;
  --lang-btn-font: 20px;
  --lang-btn-font-mobile: 16px;
  --title-font-mobile: clamp(1rem, 4vw, 1.3rem);
}

/* Apply default options */
header,
.header {
  padding: var(--header-padding-default);
  grid-template-columns: var(--grid-columns-default);
}

/* Mobile: lock grid columns for consistent alignment */
@media (max-width: 700px) {
  header,
  .header {
    padding: 0 var(--space-12);
    grid-template-columns: 40px 1fr 60px;
  }

  .back-link {
    font-size: 18px;
    padding: 4px 2px;
    height: 28px;
    width: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
    border: 1px solid var(--text-secondary);
  }

  .page-title {
    font-size: clamp(1.1rem, 5vw, 1.4rem);
    line-height: 1;
    padding: 0;
    white-space: nowrap;
    height: 28px;
  }

  .lang-switch {
    gap: 0 !important;
    height: 28px;
  }

  .lang-btn {
    padding: 0;
    font-size: 20px;
    letter-spacing: 0;
    height: 28px;
    width: 23px;
    min-width: 23px;
    max-width: 23px;
    line-height: 1;
    box-sizing: border-box;
    flex-shrink: 0;
    flex-grow: 0;
    text-align: center;
    text-rendering: geometricPrecision;
  }

  .separator {
    font-size: 20px !important;
    letter-spacing: 0;
    height: 28px !important;
    width: 6px !important;
    min-width: 6px !important;
    max-width: 6px !important;
    display: flex !important;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    flex-grow: 0;
    text-rendering: geometricPrecision;
  }

}

@media (max-width: 600px) {
  header,
  .header {
    padding: 0 var(--space-12);
    grid-template-columns: 36px 1fr 55px;
  }

  .back-link {
    height: 26px;
    width: 30px;
    font-size: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
    padding: 3px 2px;
    border: 1px solid var(--text-secondary);
  }

  .page-title {
    font-size: clamp(1.2rem, 5.5vw, 1.6rem);
    line-height: 1;
    padding: 0;
    white-space: nowrap;
    height: 28px;
  }

  .lang-switch {
    gap: 0 !important;
    height: 28px;
  }

  .lang-btn {
    font-size: 19px;
    height: 28px;
    width: 24px;
    min-width: 24px;
    max-width: 24px;
    padding: 0;
    line-height: 1;
    box-sizing: border-box;
    flex-shrink: 0;
    flex-grow: 0;
    text-align: center;
    text-rendering: geometricPrecision;
  }

  .top-nav {
    grid-column: 1 / -1;
    justify-content: center;
  }

  .separator {
    font-size: 19px !important;
    letter-spacing: 0;
    height: 28px !important;
    width: 5px !important;
    min-width: 5px !important;
    max-width: 5px !important;
    display: flex !important;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    flex-grow: 0;
    text-rendering: geometricPrecision;
  }
}