/**
 * CUTIS Theme — Site Header
 * BEM: site-header, main-nav, cta-button, mobile-toggle, mobile-menu-backdrop
 */

/* ------------------------------------------------------------------ */
/* Design tokens (placeholders — replace once the Global Design System
   tokens are finalized) */
/* ------------------------------------------------------------------ */
:root {
  --cutis-color-primary: #2a9d9a; /* teal — placeholder */
  --cutis-color-heading: #0f2b3d; /* navy — placeholder */
  --cutis-color-text: #333333;
  --cutis-color-surface: #ffffff;
  --cutis-color-border: #e5e9eb;
  --cutis-color-cream: #fdf3e7;
  --cutis-color-warning: #c97a2b;

  --cutis-header-height: 84px;
  --cutis-space-xs: 8px;
  --cutis-space-sm: 12px;
  --cutis-space-md: 20px;
  --cutis-space-lg: 32px;

  --cutis-container-max: 1280px;
  --cutis-drawer-width: 320px;
  --cutis-z-header: 1000;
  --cutis-z-backdrop: 999;
}

/* ------------------------------------------------------------------ */
/* Global type — driven by Theme Settings design tokens. Normally this
   belongs in style.css; added here per the design-token integration task */
/* ------------------------------------------------------------------ */
body {
  font-family: var(--cutis-font-body);
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--cutis-font-heading);
}

/* ------------------------------------------------------------------ */
/* Site header shell */
/* ------------------------------------------------------------------ */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--cutis-z-header);
  background: var(--cutis-color-surface);
  box-shadow: 0px 0px 4px rgba(15, 43, 61, 0.08);
  transition: box-shadow 0.2s ease;
}

.site-header.is-stuck {
  box-shadow: 0 4px 16px rgba(15, 43, 61, 0.08);
}

.site-header__inner {
  max-width: var(--cutis-container-max);
  margin: 0 auto;
  padding: 0 var(--cutis-space-md);
  height: var(--cutis-header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--cutis-space-lg);
}

/* ------------------------------------------------------------------ */
/* Logo */
/* ------------------------------------------------------------------ */
.site-header__logo {
  flex: 0 0 auto;
}

.site-header__logo img {
  max-width: var(--cutis-logo-max-width);
  max-height: var(--cutis-logo-max-height);
  width: auto;
  height: auto;
  display: block;
}

.site-header__logo-link {
  display: flex;
  flex-direction: column;
  line-height: 1;
  text-decoration: none;
}

.site-header__logo-text {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--cutis-color-heading);
}

.site-header__logo-tagline {
  margin-top: 4px;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--cutis-color-primary);
}

/* ------------------------------------------------------------------ */
/* Primary navigation — desktop (hover flyouts) */
/* ------------------------------------------------------------------ */
.main-nav {
  flex: 1 1 auto;
}

.main-nav__notice {
  font-size: 13px;
  color: #a94442;
  margin: 0;
}

.main-nav__list {
  list-style: none;
  display: flex;
  align-items: center;
  margin: 0;
  padding: 0;
  gap: var(--cutis-space-md);
}

.main-nav__item {
  position: relative;
}

.main-nav__link {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: var(--cutis-space-sm) 0;
  color: var(--cutis-nav-link-color);
  text-decoration: none;
  font-size: var(--cutis-nav-font-size);
  font-weight: 500;
  white-space: nowrap;
}

.main-nav__link:hover,
.main-nav__item--active > .main-nav__link {
  color: var(--cutis-nav-hover-color);
}

.main-nav__caret {
  width: 8px;
  height: 8px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg);
  margin-top: -2px;
  transition: transform 0.15s ease;
}

/* Flyout submenus: hidden by default, revealed on hover of the owning item */
.main-nav__flyout {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 240px;
  list-style: none;
  margin: 0;
  padding: var(--cutis-space-xs) 0;
  background: var(--cutis-color-surface);
  border: 1px solid var(--cutis-color-border);
  box-shadow: 0 8px 24px rgba(15, 43, 61, 0.12);
  border-radius: 4px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition:
    opacity 0.15s ease,
    transform 0.15s ease,
    visibility 0.15s;
  z-index: var(--cutis-z-header);
}

/* Nested flyouts (depth > 0) open to the RIGHT of their parent, not below */
.main-nav__flyout--nested {
  top: -1px;
  left: 100%;
  transform: translateX(6px);
}

.main-nav__item--has-children:hover > .main-nav__flyout {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.main-nav__flyout--nested.main-nav__flyout {
  /* nested flyout entrance uses a horizontal slide instead of vertical */
}

.main-nav__item--has-children:hover > .main-nav__flyout--nested {
  transform: translateX(0);
}

.main-nav__flyout .main-nav__item {
  display: block;
}

.main-nav__flyout .main-nav__link {
  padding: var(--cutis-space-xs) var(--cutis-space-sm);
  width: 100%;
}

/* ------------------------------------------------------------------ */
/* Actions: CTA button + mobile toggle */
/* ------------------------------------------------------------------ */
.site-header__actions {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: var(--cutis-space-md);
}

.cta-button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--cutis-button-radius);
  background: var(--cutis-button-bg);
  color: var(--cutis-button-text);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
  transition:
    background-color 0.15s ease,
    color 0.15s ease;
}

.cta-button:hover {
  background: var(--cutis-button-bg-hover);
}

.cta-button__arrow {
  transition: transform 0.15s ease;
}

.cta-button:hover .cta-button__arrow {
  transform: translateX(3px);
}

/* Mobile toggle: hidden on desktop */
.mobile-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 0;
  background: transparent;
  border: none;
  cursor: pointer;
}

.mobile-toggle__bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--cutis-color-heading);
  transition:
    transform 0.2s ease,
    opacity 0.2s ease;
}

/* Mobile drawer backdrop: hidden on desktop */
.mobile-menu-backdrop {
  display: none;
}

/* ------------------------------------------------------------------ */
/* Mobile / tablet breakpoint (< 991px) */
/* ------------------------------------------------------------------ */
@media (max-width: 990px) {
  .mobile-toggle {
    display: flex;
  }

  /* Main nav becomes a fixed right-side off-canvas drawer */
  .main-nav {
    position: fixed;
    top: 0;
    right: -320px;
    right: calc(var(--cutis-drawer-width) * -1);
    width: var(--cutis-drawer-width);
    max-width: 85vw;
    height: 100vh;
    background: var(--cutis-color-surface);
    box-shadow: -8px 0 24px rgba(15, 43, 61, 0.15);
    overflow-y: auto;
    transition: right 0.25s ease;
    z-index: var(--cutis-z-header);
  }

  .main-nav.is-open {
    right: 0;
  }

  .main-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: calc(var(--cutis-header-height) + var(--cutis-space-md))
      var(--cutis-space-md) var(--cutis-space-md);
  }

  .main-nav__item {
    position: static;
    border-bottom: 1px solid var(--cutis-color-border);
  }

  .main-nav__link {
    padding: var(--cutis-space-sm) 0;
    justify-content: space-between;
  }

  /* Submenus become static inline accordion panels, not absolute popovers */
  .main-nav__flyout,
  .main-nav__flyout--nested {
    position: static;
    display: none;
    opacity: 1;
    visibility: visible;
    transform: none;
    min-width: 0;
    width: 100%;
    margin: 0;
    padding: 0 0 0 var(--cutis-space-md);
    border: none;
    box-shadow: none;
    border-radius: 0;
    background: transparent;
  }

  /* Only shown when the parent <li> is toggled open by JS */
  .main-nav__item--has-children.is-open > .main-nav__flyout {
    display: block;
  }

  .main-nav__item--has-children > .main-nav__link .main-nav__caret {
    transition: transform 0.2s ease;
  }

  .main-nav__item--has-children.is-open > .main-nav__link .main-nav__caret {
    transform: rotate(225deg);
  }

  /* Backdrop overlay behind the drawer */
  .mobile-menu-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(15, 43, 61, 0.5);
    opacity: 0;
    visibility: hidden;
    transition:
      opacity 0.2s ease,
      visibility 0.2s ease;
    z-index: var(--cutis-z-backdrop);
  }

  .mobile-menu-backdrop.is-visible {
    opacity: 1;
    visibility: visible;
  }

  .site-header__actions {
    gap: var(--cutis-space-sm);
  }

  .cta-button--primary {
    padding: 8px 14px;
    font-size: 13px;
  }
}