/* ===== Site Header ===== */
.s-site-header{
  position: sticky;
  inset-block-start: 0;
  z-index: 90;
  background: var(--c-bg);
  border-block-end: 1px solid transparent;
  transition: border-color .25s ease, box-shadow .25s ease;
  font-family: var(--font-body);
}
.s-site-header.is-scrolled{
  border-block-end-color: var(--c-border);
  box-shadow: var(--shadow-sm);
}

.s-site-header__inner{
  position: relative;
  z-index: 110;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 16px;
  min-height: 72px;
}

/* Brand */
.s-site-header__brand-wrap{
  display: flex;
  align-items: center;
  gap: 22px;
  min-width: 0;
}
.s-site-header__divider{
  flex: 0 0 auto;
  width: 1px;
  height: 26px;
  background: var(--c-border);
}

/* Drawer shell (transparent on desktop) */
.s-site-header__drawer{ display: contents; }
.s-site-header__drawer-head{ display: none; }

/* Nav */
.s-site-header__nav{
  justify-self: center;
  align-self: stretch;
  display: flex;
  align-items: center;
  min-width: 0;
}
.s-site-header__list{
  display: flex;
  align-items: stretch;
  height: 100%;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.s-site-header__item{
  position: relative;
  display: flex;
  align-items: center;
}
.s-site-header__row{
  display: flex;
  align-items: center;
}
.s-site-header__link{
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding-inline: 14px;
  font-size: .9375rem;
  font-weight: 500;
  line-height: 1.2;
  color: var(--c-text);
  text-decoration: none;
  white-space: nowrap;
  border-radius: var(--radius);
  transition: color .2s ease;
}
.s-site-header__link:hover,
.s-site-header__link:focus-visible{ color: var(--c-primary); }

.s-site-header__toggle{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 44px;
  padding: 0;
  border: 0;
  background: none;
  color: var(--c-text);
  cursor: pointer;
  transition: color .2s ease;
}
.s-site-header__toggle:hover{ color: var(--c-primary); }
.s-site-header__chev{
  width: 12px;
  height: 12px;
  transition: transform .22s ease;
}
.s-site-header__item.is-open .s-site-header__chev{ transform: rotate(180deg); }

/* Dropdown panel */
.s-site-header__menu{
  position: absolute;
  inset-block-start: 100%;
  inset-inline-start: 0;
  min-width: 244px;
  margin: 0;
  padding: 8px;
  list-style: none;
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity .18s ease, transform .18s ease, visibility .18s ease;
  z-index: 30;
}
.s-site-header__menu a{
  display: flex;
  align-items: center;
  min-height: 42px;
  padding-inline: 12px;
  font-size: .875rem;
  font-weight: 500;
  color: var(--c-muted);
  text-decoration: none;
  border-radius: calc(var(--radius) - 2px);
  transition: background .18s ease, color .18s ease;
}
.s-site-header__menu a:hover{
  background: var(--c-surface);
  color: var(--c-primary);
}

@media (min-width: 901px){
  .s-site-header__item:hover > .s-site-header__menu,
  .s-site-header__item:focus-within > .s-site-header__menu,
  .s-site-header__item.is-open > .s-site-header__menu{
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
}

/* Actions */
.s-site-header__actions{
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 10px;
}
.s-site-header__cta{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding-inline: 22px;
  border-radius: 999px;
  background-image: linear-gradient(100deg, var(--c-primary), var(--c-accent));
  color: var(--c-on-primary);
  font-family: var(--font-head);
  font-size: .9375rem;
  font-weight: 600;
  line-height: 1.2;
  text-decoration: none;
  white-space: nowrap;
  box-shadow: 0 6px 18px -8px var(--c-primary);
  transition: transform .2s ease, box-shadow .2s ease, filter .2s ease;
}
.s-site-header__cta svg{ width: 15px; height: 15px; flex: 0 0 auto; }
.s-site-header__cta:hover{
  transform: translateY(-1px);
  box-shadow: 0 10px 24px -10px var(--c-primary);
  filter: saturate(1.12);
}
.s-site-header__cta:active{ transform: translateY(0); }
.s-site-header__cta--drawer{ display: none; }

.s-site-header__burger{
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  background: var(--c-bg);
  color: var(--c-text);
  cursor: pointer;
}
.s-site-header__burger svg{ width: 20px; height: 20px; }

/* Backdrop */
.s-site-header__backdrop{
  position: fixed;
  inset: 0;
  z-index: 100;
  background: var(--c-secondary);
  opacity: 0;
  visibility: hidden;
  transition: opacity .25s ease, visibility .25s ease;
}
.s-site-header.is-open .s-site-header__backdrop{
  opacity: .5;
  visibility: visible;
}

/* ===== Mobile drawer (<=900px) ===== */
@media (max-width: 900px){
  .s-site-header__inner{
    grid-template-columns: 1fr auto;
    min-height: 60px;
    gap: 8px;
  }
  .s-site-header__divider{ display: none; }
  .s-site-header__burger{ display: inline-flex; }
  .s-site-header__actions > .s-site-header__cta{ display: none; }

  .s-site-header__drawer{
    display: block;
    position: fixed;
    inset-block: 0;
    inset-inline-end: 0;
    width: min(340px, 88vw);
    padding: 68px 20px 28px;
    background: var(--c-bg);
    border-inline-start: 1px solid var(--c-border);
    box-shadow: var(--shadow-md);
    overflow-y: auto;
    transform: translateX(102%);
    visibility: hidden;
    transition: transform .3s cubic-bezier(.4, 0, .2, 1), visibility .3s ease;
    z-index: 120;
  }
  .s-site-header.is-open .s-site-header__drawer{
    transform: translateX(0);
    visibility: visible;
  }

  .s-site-header__drawer-head{
    display: block;
    position: absolute;
    inset-block-start: 12px;
    inset-inline-end: 14px;
  }
  .s-site-header__close{
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    padding: 0;
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    background: var(--c-surface);
    color: var(--c-text);
    cursor: pointer;
  }
  .s-site-header__close svg{ width: 18px; height: 18px; }

  .s-site-header__nav{
    display: block;
    width: 100%;
    align-self: auto;
  }
  .s-site-header__list{
    flex-direction: column;
    align-items: stretch;
    height: auto;
    gap: 0;
  }
  .s-site-header__item{
    display: block;
    border-block-end: 1px solid var(--c-border);
  }
  .s-site-header__row{
    justify-content: space-between;
  }
  .s-site-header__link{
    flex: 1 1 auto;
    min-height: 52px;
    padding-inline: 4px;
    font-size: 1rem;
  }
  .s-site-header__toggle{
    width: 44px;
    height: 52px;
  }

  .s-site-header__menu{
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    display: none;
    min-width: 0;
    padding: 0 0 10px;
    background: transparent;
    border: 0;
    box-shadow: none;
  }
  .s-site-header__item.is-open > .s-site-header__menu{ display: block; }
  .s-site-header__menu a{
    min-height: 44px;
    padding-inline: 4px;
    font-size: .9375rem;
    color: var(--c-muted);
  }

  .s-site-header__cta--drawer{
    display: inline-flex;
    justify-content: center;
    width: 100%;
    min-height: 48px;
    margin-block-start: 22px;
  }
}

/* ===== Small phones (<=600px) ===== */
@media (max-width: 600px){
  .s-site-header__inner{ min-height: 60px; }
  .s-site-header__brand-wrap{ gap: 12px; }
  .s-site-header__drawer{
    width: 100%;
    padding: 64px 16px 24px;
    border-inline-start: 0;
  }
  .s-site-header__cta{
    padding-inline: 18px;
    font-size: .875rem;
  }
  .s-site-header__cta--drawer{ font-size: .9375rem; }
}