/* ==========================================================================
   Component Styles — Shared components used across all pages
   Dependencies: variables.css, reset.css, global.css
   ========================================================================== */

/* ==========================================================================
   Header Component
   ========================================================================== */

.header {
  position: sticky;
  top: 0;
  z-index: 90;
  background-color: var(--page-white);
  border-bottom: 1px solid var(--color-border);
}

.header__container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-padding);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  min-height: 64px;
  transition: min-height 0.3s ease;
}

/* ── Logo ── */

.header__logo {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
  cursor: pointer;
  min-height: 44px;
}

.header__logo:hover,
.header__logo:focus-visible {
  opacity: 0.8;
}

.header__logo-img {
  display: block;
  width: auto;
  height: 36px;
  transition: height var(--transition-fast);
}

/* ── Mobile Toggle ── */

.header__toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  padding: var(--space-sm);
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast);
}

.header__toggle:hover,
.header__toggle:focus-visible {
  color: var(--cereble-blue);
}

.header__toggle[hidden] {
  display: none;
}

/* Icon swap: show hamburger by default, close when expanded */
.header__toggle-icon--close {
  display: none !important;
}

.header__toggle[aria-expanded="true"] .header__toggle-icon--open {
  display: none;
}

.header__toggle[aria-expanded="true"] .header__toggle-icon--close {
  display: block !important;
}

/* ── Navigation ── */

.header__nav {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: var(--space-sm);
  width: 100%;
  padding-block: var(--space-md);
  order: 3; /* Push below logo + toggle row */
}

/* JS-enhanced: hide nav on mobile until toggled */
.header[data-nav-enhanced] .header__nav {
  display: none;
}

.header[data-nav-enhanced]
  .header__toggle[aria-expanded="true"]
  ~ .header__nav {
  display: flex;
}

.header__menu {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.header__menu-item {
  border-bottom: 1px solid var(--color-border);
}

.header__menu-item:last-child {
  border-bottom: none;
}

.header__link {
  display: flex;
  align-items: center;
  min-height: 44px;
  padding: var(--space-sm) 0;
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: var(--fw-medium);
  color: var(--text-primary);
  text-decoration: none;
  cursor: pointer;
  transition:
    color var(--transition-fast),
    padding 0.3s ease,
    min-height 0.3s ease,
    font-size 0.3s ease;
}

.header__link:hover,
.header__link:focus-visible {
  color: var(--cereble-blue-accessible);
}

.header__link[aria-current="page"] {
  color: var(--cereble-blue-accessible);
  font-weight: var(--fw-semibold);
}

/* ── Enrol CTA ── */

.header__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: var(--space-sm) var(--space-xl);
  background: var(--gradient-brand-accessible);
  color: var(--color-text-on-dark);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: var(--fw-semibold);
  text-decoration: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  margin-top: var(--space-sm);
  text-align: center;
  transition:
    opacity var(--transition-base),
    box-shadow var(--transition-base),
    padding 0.3s ease,
    min-height 0.3s ease,
    font-size 0.3s ease;
}

.header__cta:hover,
.header__cta:focus-visible {
  opacity: 0.9;
  box-shadow: var(--shadow-md);
}

/* ==========================================================================
   Header — Tablet & Desktop (768px+)
   ========================================================================== */

@media (min-width: 768px) {
  .header__container {
    flex-wrap: nowrap;
    gap: var(--space-xl);
  }

  /* Always hide toggle on desktop */
  .header__toggle {
    display: none;
  }

  /* Always show nav on desktop, even with JS enhancement */
  .header__nav,
  .header[data-nav-enhanced] .header__nav {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: var(--space-xl);
    width: auto;
    padding-block: 0;
    order: unset;
  }

  .header__menu {
    flex-direction: row;
    gap: var(--space-xs);
  }

  .header__menu-item {
    border-bottom: none;
  }

  .header__link {
    padding: var(--space-sm) var(--space-sm);
    position: relative;
  }

  /* Active page indicator — bottom border on desktop */
  .header__link[aria-current="page"]::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: var(--space-sm);
    right: var(--space-sm);
    height: 2px;
    background: var(--gradient-brand);
    border-radius: 1px;
  }

  .header__cta {
    margin-top: 0;
    white-space: nowrap;
  }
}

/* ==========================================================================
   Header — Compact State (scroll-shrink)
   Toggled via JS when the announcement bar scrolls out of view.
   ========================================================================== */

.header--compact .header__container {
  min-height: 42px;
}

.header--compact .header__logo-img {
  height: 28px;
}

.header--compact .header__cta {
  min-height: 32px;
  padding: var(--space-xs) var(--space-lg);
  font-size: var(--text-badge);
}

/* Compact on desktop: tighter nav link padding */
@media (min-width: 768px) {
  .header--compact .header__link {
    padding: var(--space-xs) var(--space-sm);
    min-height: 32px;
    font-size: var(--text-sm);
  }
}

/* Mobile: when nav is open, override compact back to full size */
@media (max-width: 767px) {
  .header--compact .header__toggle[aria-expanded="true"] ~ .header__nav {
    padding-block: var(--space-md);
  }
}

/* ==========================================================================
   Header — Reduced Motion
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
  .header__toggle,
  .header__link,
  .header__cta,
  .header__container,
  .header__logo-img {
    transition: none;
  }
}

/* ==========================================================================
   Footer Component
   ========================================================================== */

.footer {
  background-color: var(--accent-dark);
  color: var(--color-text-on-dark);
  padding-block: var(--space-section) var(--space-2xl);
}

.footer__container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-padding);
}

/* ── Grid layout ── */

.footer__grid {
  display: grid;
  gap: var(--space-2xl);
}

/* ── Brand column ── */

.footer__brand {
  max-width: 320px;
}

.footer__logo {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  cursor: pointer;
  min-height: 44px;
}

.footer__logo:hover,
.footer__logo:focus-visible {
  opacity: 0.8;
}

.footer__logo {
  transition: opacity var(--transition-fast);
}

.footer__logo-img {
  display: block;
  width: 300px;
  max-width: 100%;
  height: auto;
  mix-blend-mode: screen;
}

.footer__description {
  margin-top: var(--space-md);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: var(--fw-regular);
  line-height: var(--lh-body);
  color: var(--color-text-on-dark-muted);
}

/* ── Nav columns ── */

.footer__nav-heading {
  font-family: var(--font-heading);
  font-size: var(--text-badge);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--ls-badge);
  text-transform: uppercase;
  color: var(--color-text-on-dark);
  margin-bottom: var(--space-md);
}

.footer__nav-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer__link {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: var(--fw-regular);
  color: var(--color-text-on-dark-muted);
  text-decoration: none;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.footer__link:hover,
.footer__link:focus-visible {
  color: var(--color-brand-blue-light);
}

/* ── Contact column ── */

.footer__address {
  font-style: normal;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.footer__contact-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
}

.footer__contact-icon {
  flex-shrink: 0;
  font-size: 1rem;
}

.footer__postal {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  line-height: var(--lh-body);
  color: var(--color-text-on-dark-muted);
}

/* ── Divider & Copyright ── */

.footer__divider {
  border: none;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  margin-top: var(--space-3xl);
  margin-bottom: var(--space-lg);
}

.footer__copyright {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-text-on-dark-muted);
  text-align: center;
}

/* ==========================================================================
   Footer — Tablet (768px+)
   ========================================================================== */

@media (min-width: 768px) {
  .footer__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-2xl) var(--space-xl);
  }

  .footer__brand {
    grid-column: 1 / -1;
  }
}

/* ==========================================================================
   Footer — Desktop (1024px+)
   ========================================================================== */

@media (min-width: 1024px) {
  .footer__grid {
    grid-template-columns: 2fr 1fr 1fr 1fr 1.5fr;
    gap: var(--space-xl);
  }

  .footer__brand {
    grid-column: auto;
  }
}

/* ==========================================================================
   Footer — Reduced Motion
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
  .footer__logo,
  .footer__link {
    transition: none;
  }
}