/* =========================================================
   Alumot — Layout: Header, Nav, Footer (Watercolor)
   ========================================================= */

/* Header */
.site-header {
  position: fixed;
  inset-inline: 0;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: rgba(252, 250, 245, 0.78);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: background var(--duration-base) var(--ease-out),
              border-color var(--duration-base) var(--ease-out);
}
.site-header.is-scrolled {
  background: rgba(252, 250, 245, 0.95);
  border-bottom-color: var(--border);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--max-w-wide);
  margin-inline: auto;
  padding-inline: var(--gutter);
  gap: var(--space-6);
}

/* Logo */
.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
}
.brand-mark {
  width: 96px;
  height: 96px;
  display: grid;
  place-items: center;
  background: transparent;
  flex-shrink: 0;
}
.brand-mark img,
.brand-mark svg { width: 100%; height: 100%; object-fit: contain; }
.brand-name {
  display: block;
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: var(--font-medium);
  color: var(--text);
  letter-spacing: 0.05em;
  line-height: 1.1;
}
.brand-tag {
  display: block;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  color: var(--text-muted);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-top: 2px;
}

/* Nav */
.nav {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}
.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}
.nav-link {
  position: relative;
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: var(--font-medium);
  color: var(--text);
  padding-block: var(--space-2);
  transition: color var(--duration-fast) var(--ease-out);
}
.nav-link::after {
  content: '';
  position: absolute;
  inset-inline-start: 50%;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--color-sage-300);
  transform: translateX(50%);
  transition: width var(--duration-base) var(--ease-out);
}
.nav-link:hover,
.nav-link[aria-current="page"] { color: var(--color-sage-700); }
.nav-link:hover::after,
.nav-link[aria-current="page"]::after { width: 28px; }

.nav-cta { display: none; }
@media (min-width: 768px) { .nav-cta { display: inline-flex; } }

/* Mobile menu toggle */
.menu-toggle {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: var(--radius-pill);
}
.menu-toggle:hover { background: var(--color-cream-100); }
.menu-toggle-icon {
  width: 22px;
  height: 16px;
  position: relative;
}
.menu-toggle-icon::before,
.menu-toggle-icon::after,
.menu-toggle-icon span {
  content: '';
  display: block;
  position: absolute;
  inset-inline: 0;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all var(--duration-fast) var(--ease-out);
}
.menu-toggle-icon::before { top: 0; }
.menu-toggle-icon span { top: 50%; transform: translateY(-50%); }
.menu-toggle-icon::after { bottom: 0; }

@media (max-width: 767px) {
  .nav-list {
    position: fixed;
    top: var(--header-h);
    inset-inline: 0;
    bottom: 0;
    background: #FCFAF5;
    background: rgba(252, 250, 245, 0.98);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    flex-direction: column;
    padding: var(--space-12) var(--gutter);
    gap: var(--space-8);
    transform: translateX(-100%);
    transition: transform var(--duration-base) var(--ease-out);
    z-index: 200;
    align-items: flex-start;
    overflow-y: auto;
    box-shadow: 0 8px 24px rgba(31, 42, 51, 0.08);
  }
  body.menu-open .nav-list { transform: translateX(0); }
  body.menu-open { overflow: hidden; }
  body.menu-open .menu-toggle-icon::before { top: 50%; transform: translateY(-50%) rotate(45deg); }
  body.menu-open .menu-toggle-icon::after { bottom: 50%; transform: translateY(50%) rotate(-45deg); }
  body.menu-open .menu-toggle-icon span { opacity: 0; }
  .nav-link { font-size: var(--text-2xl); font-family: var(--font-display); }
  .nav-cta { display: none; }
}
@media (min-width: 768px) { .menu-toggle { display: none; } }

/* Footer */
.site-footer {
  background: var(--color-cream-100);
  color: var(--text-body);
  padding-block: var(--space-24) var(--space-12);
  margin-top: var(--space-32);
  position: relative;
  overflow: hidden;
}
.site-footer::before {
  content: '';
  position: absolute;
  inset-inline-start: -120px;
  top: -100px;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: var(--color-sage-100);
  opacity: 0.6;
  filter: blur(80px);
}
.site-footer::after {
  content: '';
  position: absolute;
  inset-inline-end: -100px;
  bottom: -120px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: var(--color-blue-100);
  opacity: 0.55;
  filter: blur(80px);
}
.site-footer .container { position: relative; z-index: 1; }
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
  margin-bottom: var(--space-16);
}
@media (min-width: 768px) {
  .footer-grid { grid-template-columns: 1.5fr 1fr 1fr; gap: var(--space-16); }
}
.footer-brand .brand-name { color: var(--text); }
.footer-brand p {
  margin-top: var(--space-4);
  color: var(--text-body);
  max-width: 38ch;
}
.footer-title {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-sage-700);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: var(--space-4);
}
.footer-links li + li { margin-top: var(--space-3); }
.footer-links a { color: var(--text-body); }
.footer-links a:hover { color: var(--color-sage-700); }
.footer-bottom {
  padding-top: var(--space-8);
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
  color: var(--text-muted);
  font-size: var(--text-sm);
}

/* Page hero (for inner pages) */
.page-hero {
  padding-block: calc(var(--header-h) + var(--space-16)) var(--space-16);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset-inline-start: -150px;
  top: 30%;
  width: 380px;
  height: 380px;
  border-radius: 50%;
  background: var(--color-sage-100);
  opacity: 0.55;
  filter: blur(60px);
}
.page-hero::after {
  content: '';
  position: absolute;
  inset-inline-end: -120px;
  top: -50px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: var(--color-blue-100);
  opacity: 0.5;
  filter: blur(70px);
}
.page-hero > * { position: relative; }
.page-hero h1 { margin-bottom: var(--space-4); }
.page-hero p {
  font-size: var(--text-lg);
  color: var(--text-body);
  max-width: 60ch;
  margin-inline: auto;
}