/* =============================================================
   LAYOUT — header (center nav + right CTA), footer (3 sections)
   ============================================================= */

/* -------------------- header --------------------
   The header uses position:fixed (not sticky) so it can never be
   constrained by an ancestor's height — that lets the partial-loader
   div stay zero-height while the body padding below reserves the
   right amount of space (no CLS). */

[data-include] { display: block; }

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-header);
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition:
    border-color var(--dur-base) var(--ease-out),
    background var(--dur-base) var(--ease-out);
}
.site-header.is-scrolled {
  border-bottom-color: var(--color-border);
  background: rgba(255, 255, 255, 0.95);
}

/* Two-row layout:
     row 1 — nav (centered) + CTA (right)        — always visible
     row 2 — big "Maia Caron" wordmark           — hides on scroll
   Padding/gap also collapse on scroll for a tight compact bar. */
.site-header__inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding-block: var(--space-4) var(--space-5);
  transition:
    gap var(--dur-base) var(--ease-out),
    padding var(--dur-base) var(--ease-out);
}
.site-header.is-scrolled .site-header__inner {
  gap: 0;
  padding-block: var(--space-3);
}

.site-header__top {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: var(--space-3);
  min-height: 44px;
}

.nav { grid-column: 2; justify-self: center; }
.site-header__cta {
  grid-column: 3;
  justify-self: end;
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* Large wordmark — same font family as the About page "Maia Caron" heading.
   Hides on scroll via max-height + opacity transition. */
.site-header__brand {
  font-family: var(--font-display);
  font-weight: var(--fw-semibold);
  font-size: var(--fs-5xl);
  letter-spacing: var(--tracking-tight);
  line-height: 1;
  color: var(--color-text);
  text-align: center;
  text-decoration: none;
  display: block;
  white-space: nowrap;
  max-height: 200px;
  overflow: hidden;
  transform-origin: center top;
  transition:
    max-height var(--dur-base) var(--ease-out),
    opacity var(--dur-base) var(--ease-out),
    transform var(--dur-base) var(--ease-out),
    margin var(--dur-base) var(--ease-out);
}
.site-header__brand:hover { color: var(--color-text); }

.site-header.is-scrolled .site-header__brand {
  max-height: 0;
  opacity: 0;
  transform: scaleY(0.85) translateY(-8px);
  margin: 0;
  pointer-events: none;
}
.nav__list {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2vw, 2.25rem);
  list-style: none;
  padding: 0;
  margin: 0;
}
.nav__link {
  position: relative;
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--color-text-soft);
  padding: 0.5em 0;
  letter-spacing: 0.01em;
  transition: color var(--dur-fast) var(--ease-out);
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 50%; bottom: 0.1em;
  width: 0; height: 1.5px;
  background: var(--color-accent);
  transition: width var(--dur-base) var(--ease-out), left var(--dur-base) var(--ease-out);
}
.nav__link:hover { color: var(--color-text); }
.nav__link:hover::after,
.nav__link.is-active::after {
  width: 100%;
  left: 0;
}
.nav__link.is-active { color: var(--color-text); }

/* -------------------- nav dropdown -------------------- */
.nav__item--has-dropdown {
  position: relative;
  display: inline-flex;
  align-items: center;
}
.nav__dropdown-toggle {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text-muted);
  padding: 0.5em 0.25em;
  margin-left: 1px;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  transition: color var(--dur-fast) var(--ease-out);
}
.nav__dropdown-toggle:hover { color: var(--color-text); }
.nav__dropdown-toggle svg {
  transition: transform var(--dur-base) var(--ease-out);
  display: block;
}
.nav__item--has-dropdown.is-open .nav__dropdown-toggle svg {
  transform: rotate(180deg);
}

/* Dropdown panel */
.nav__dropdown {
  list-style: none;
  padding: 0;
  margin: 0;
}
.nav__dropdown-link {
  display: block;
  text-decoration: none;
  color: var(--color-text-soft);
  transition: color var(--dur-fast) var(--ease-out), background var(--dur-fast) var(--ease-out);
}
.nav__dropdown-link:hover { color: var(--color-text); }
.nav__dropdown-divider { height: 1px; background: var(--color-border); }

/* Desktop: reveal on hover / focus-within */
@media (min-width: 881px) {
  /* Make the whole li a generous hover target — the panel sits flush below
     and an invisible bridge (::before) covers any gap so cursor travel is
     never interrupted. Close transition is also delayed so quick mouse
     movements don't snap the menu shut. */
  .nav__item--has-dropdown {
    padding-bottom: var(--space-3);            /* extends hover area below trigger */
    margin-bottom: calc(-1 * var(--space-3));  /* don't add visual height */
  }

  .nav__dropdown {
    position: absolute;
    top: 100%;                                 /* flush — no dead zone */
    left: 50%;
    transform: translateX(-50%) translateY(-6px);
    margin-top: 0;
    min-width: 240px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: var(--space-3) 0;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition:
      opacity var(--dur-base) var(--ease-out),
      transform var(--dur-base) var(--ease-out),
      visibility 0s linear 250ms;              /* delay hide so cursor can cross */
    z-index: var(--z-raised);
  }
  /* Invisible hover-bridge so the cursor never enters a dead zone between
     the trigger and the dropdown panel. */
  .nav__dropdown::before {
    content: "";
    position: absolute;
    top: -14px;
    left: -10px;
    right: -10px;
    height: 18px;
    background: transparent;
  }
  .nav__item--has-dropdown:hover .nav__dropdown,
  .nav__item--has-dropdown:focus-within .nav__dropdown,
  .nav__item--has-dropdown.is-open .nav__dropdown,
  .nav__item--has-dropdown.is-hover .nav__dropdown {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0);
    transition:
      opacity var(--dur-base) var(--ease-out),
      transform var(--dur-base) var(--ease-out),
      visibility 0s;
  }
  .nav__dropdown-link {
    padding: 0.85em 1.4em;                     /* larger click target */
    font-size: var(--fs-md);
    font-weight: var(--fw-medium);
    letter-spacing: 0.01em;
  }
  .nav__dropdown-link:hover { background: var(--color-bg-alt); color: var(--color-text); }
  .nav__dropdown-divider { margin: var(--space-2) var(--space-4); }
}

/* Mobile menu toggle */
.nav-toggle {
  display: none;
  width: 44px; height: 44px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  align-items: center;
  justify-content: center;
}
.nav-toggle span {
  display: block; width: 18px; height: 1.5px;
  background: var(--color-text);
  position: relative;
}
.nav-toggle span::before,
.nav-toggle span::after {
  content: ""; position: absolute; left: 0;
  width: 100%; height: 1.5px; background: var(--color-text);
  transition: transform var(--dur-base) var(--ease-out);
}
.nav-toggle span::before { top: -6px; }
.nav-toggle span::after { top: 6px; }
.nav-toggle[aria-expanded="true"] span { background: transparent; }
.nav-toggle[aria-expanded="true"] span::before { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span::after  { transform: translateY(-6px) rotate(-45deg); }

@media (max-width: 880px) {
  /* On mobile: brand on top, then a row with hamburger on the left
     and CTA on the right. The nav itself becomes a fullscreen overlay. */
  .site-header__inner {
    flex-direction: column-reverse;        /* brand first, controls below */
    padding-block: var(--space-3) var(--space-3);
    gap: var(--space-2);
  }
  .site-header__top {
    grid-template-columns: auto 1fr;       /* hamburger left, CTA right */
  }
  .nav-toggle {
    display: inline-flex;
    grid-column: 1;
    justify-self: start;
  }
  .site-header__cta {
    grid-column: 2;
    justify-self: end;
  }
  .site-header__brand {
    font-size: var(--fs-3xl);              /* smaller on mobile */
  }

  .nav {
    position: fixed;
    inset: 0;                              /* fullscreen overlay */
    background: var(--color-bg);
    padding: calc(var(--space-9) + var(--space-4)) var(--container-gutter) var(--space-7);
    transform: translateY(-110%);
    transition: transform var(--dur-base) var(--ease-out);
    box-shadow: var(--shadow-md);
    overflow-y: auto;
    z-index: calc(var(--z-header) - 1);
  }
  .nav.is-open { transform: translateY(0); }
  .nav__list { flex-direction: column; align-items: stretch; gap: var(--space-3); }
  .nav__link {
    font-size: var(--fs-xl);
    font-family: var(--font-display);
    padding: var(--space-3) 0;
    border-bottom: 1px solid var(--color-divider);
  }
  .nav__link::after { display: none; }
  .site-header__cta .btn { padding: 0.7em 1.1em; font-size: var(--fs-xs); }

  /* Dropdown inside the mobile overlay */
  .nav__item--has-dropdown {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    border-bottom: 1px solid var(--color-divider);
  }
  .nav__item--has-dropdown > .nav__link {
    flex: 1;
    border-bottom: none;   /* <li> carries the border */
  }
  .nav__dropdown-toggle {
    width: 44px;
    height: 44px;
    justify-content: center;
    padding: 0;
  }
  .nav__dropdown {
    width: 100%;
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--dur-slow) var(--ease-out);
    padding-left: var(--space-5);
  }
  .nav__item--has-dropdown.is-open .nav__dropdown { max-height: 500px; }
  .nav__dropdown-link {
    font-size: var(--fs-xl);
    font-family: var(--font-display);
    padding: var(--space-3) 0;
    border-bottom: 1px solid var(--color-divider);
  }
  .nav__dropdown-divider { display: none; }
}

/* -------------------- footer -------------------- */
.site-footer {
  background: var(--color-text);
  color: var(--color-text-inverse);
  padding-block: var(--space-9) var(--space-6);
  margin-top: var(--space-8);
}
/* When a newsletter banner sits directly above the footer, sit them flush
   so the banner's own padding handles the spacing — no awkward white gap. */
body:has(.newsletter-banner) .site-footer { margin-top: 0; }
.site-footer a { color: var(--color-text-inverse); }
.site-footer a:hover { color: var(--color-accent); }

.site-footer__grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: var(--space-7);
  align-items: start;
}
.site-footer__col h4 {
  font-family: var(--font-body);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: rgba(255,255,255,0.55);
  margin-bottom: var(--space-4);
}
.footer-links { list-style: none; padding: 0; display: grid; gap: var(--space-2); }
.footer-links a { font-size: var(--fs-sm); }

/* Footer column 1: brand + nav */
.site-footer__brand {
  font-family: var(--font-display);
  font-size: var(--fs-2xl);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--tracking-tight);
  margin-bottom: var(--space-3);
  display: block;
}
.site-footer__tag {
  color: rgba(255,255,255,0.65);
  font-size: var(--fs-sm);
  max-width: 36ch;
  margin-bottom: var(--space-5);
}

/* Footer column 2: socials */
.socials {
  display: flex;
  gap: var(--space-3);
  list-style: none;
  padding: 0;
}
.socials a {
  width: 44px; height: 44px;
  display: grid; place-items: center;
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: var(--radius-pill);
  transition: background var(--dur-base) var(--ease-out), border-color var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out);
}
.socials a:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-accent-contrast);
  transform: translateY(-2px);
}
.socials svg { width: 18px; height: 18px; fill: currentColor; }

/* Footer column 3: CTA */
.site-footer__cta-block .btn { width: 100%; }
.site-footer__cta-note {
  margin-top: var(--space-3);
  font-size: var(--fs-xs);
  color: rgba(255,255,255,0.55);
  letter-spacing: 0.02em;
}

.site-footer__bottom {
  margin-top: var(--space-8);
  padding-top: var(--space-5);
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: space-between;
  align-items: center;
  font-size: var(--fs-xs);
  color: rgba(255,255,255,0.5);
  letter-spacing: var(--tracking-wide);
}

@media (max-width: 880px) {
  .site-footer__grid {
    grid-template-columns: 1fr;
    gap: var(--space-7);
  }
}