/* ==========================================================================
   LAYOUT — Container, Grid, Header, Footer, Nav
   ========================================================================== */

/* --------------------------------------------------------------------------
   Container
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-xl);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.container--sm  { max-width: var(--container-sm); }
.container--md  { max-width: var(--container-md); }
.container--lg  { max-width: var(--container-lg); }
.container--2xl { max-width: var(--container-2xl); }
.container--full { max-width: 100%; }

/* --------------------------------------------------------------------------
   Grid utilities
   -------------------------------------------------------------------------- */
.grid       { display: grid; }
.grid--2    { grid-template-columns: repeat(2, 1fr); gap: var(--space-8); }
.grid--3    { grid-template-columns: repeat(3, 1fr); gap: var(--space-8); }
.grid--4    { grid-template-columns: repeat(4, 1fr); gap: var(--space-6); }
.grid--auto { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: var(--space-8); }

@media (max-width: 1024px) {
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
}

/* Flex helpers */
.flex           { display: flex; }
.flex--center   { align-items: center; justify-content: center; }
.flex--between  { align-items: center; justify-content: space-between; }
.flex--gap-4    { gap: var(--space-4); }
.flex--gap-8    { gap: var(--space-8); }

/* Section spacing */
.section {
  padding-block: clamp(var(--space-16), 8vw, var(--space-40));
}
.section--sm   { padding-block: clamp(var(--space-10), 5vw, var(--space-24)); }
.section--lg   { padding-block: clamp(var(--space-24), 10vw, 12rem); }
.section--dark { background: var(--color-dark); color: var(--color-white); }
.section--alt  { background: var(--color-bg-alt); }

/* --------------------------------------------------------------------------
   Site Header
   -------------------------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: transparent;
  transition: background var(--duration-slow) var(--ease-out),
              box-shadow var(--duration-slow) var(--ease-out);
}

.site-header.is-scrolled {
  background: rgba(245, 242, 238, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--color-border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  padding-inline: var(--container-pad);
  max-width: var(--container-2xl);
  margin-inline: auto;
}

/* Logo */
.site-header__logo {
  flex-shrink: 0;
  display: flex;
  align-items: center;
}

.site-header__logo img {
  height: 36px;
  width: auto;
  transition: opacity var(--duration-base);
}

/* For hero (transparent header) show white logo */
.site-header--transparent .site-header__logo .logo--dark  { display: none; }
.site-header--transparent .site-header__logo .logo--white { display: block; }
.site-header:not(.site-header--transparent) .site-header__logo .logo--white { display: none; }
.site-header:not(.site-header--transparent) .site-header__logo .logo--dark  { display: block; }

/* Navigation */
.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.site-nav__list {
  display: flex;
  gap: var(--space-8);
  align-items: center;
}

.site-nav__link {
  font-size: var(--text-sm);
  font-weight: 400;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-text);
  position: relative;
  padding-block: var(--space-1);
  transition: color var(--duration-base);
}

.site-header--transparent .site-nav__link { color: var(--color-white); }
.site-header.is-scrolled     .site-nav__link { color: var(--color-text); }

.site-nav__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: currentColor;
  transition: width var(--duration-base) var(--ease-out);
}

.site-nav__link:hover::after,
.site-nav__link.current-menu-item::after { width: 100%; }

/* Header Actions */
.site-header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-5);
}

.header-icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  border: none;
  background: transparent;
  cursor: pointer;
  position: relative;
  transition: color var(--duration-fast);
  color: var(--color-text);
}

.site-header--transparent .header-icon-btn { color: var(--color-white); }
.site-header.is-scrolled   .header-icon-btn { color: var(--color-text); }

.header-icon-btn .cart-count {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--color-accent);
  color: var(--color-white);
  font-size: 10px;
  font-weight: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 24px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
}

.hamburger span {
  display: block;
  height: 1px;
  background: currentColor;
  transition: transform var(--duration-base) var(--ease-out),
              opacity var(--duration-base);
}

.hamburger.is-active span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.hamburger.is-active span:nth-child(2) { opacity: 0; }
.hamburger.is-active span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

@media (max-width: 1024px) {
  .site-nav__list { display: none; }
  .hamburger     { display: flex; }
}

/* Mobile Nav Drawer */
.mobile-nav {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(320px, 100vw);
  background: var(--color-bg);
  z-index: 200;
  transform: translateX(100%);
  transition: transform var(--duration-slow) var(--ease-out);
  padding: var(--space-24) var(--space-8) var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.mobile-nav.is-open  { transform: translateX(0); }

.mobile-nav__overlay {
  position: fixed;
  inset: 0;
  background: rgba(26,25,22,0.5);
  z-index: 199;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-slow);
}

.mobile-nav__overlay.is-visible {
  opacity: 1;
  pointer-events: auto;
}

.mobile-nav__link {
  display: block;
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: 300;
  padding-block: var(--space-3);
  border-bottom: var(--border-thin);
  color: var(--color-dark);
  transition: color var(--duration-base);
}

.mobile-nav__link:hover { color: var(--color-accent); }

.mobile-nav__close {
  position: absolute;
  top: var(--space-6);
  right: var(--space-6);
  background: none;
  border: none;
  cursor: pointer;
  font-size: var(--text-xl);
  color: var(--color-dark);
}

/* --------------------------------------------------------------------------
   Site Footer
   -------------------------------------------------------------------------- */
.site-footer {
  background: var(--color-dark);
  color: rgba(255,255,255,0.7);
  padding-block: var(--space-16) var(--space-8);
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-12);
  padding-bottom: var(--space-12);
  border-bottom: 1px solid rgba(255,255,255,0.1);
  margin-bottom: var(--space-8);
}

@media (max-width: 768px) {
  .site-footer__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .site-footer__grid { grid-template-columns: 1fr; }
}

.site-footer__logo img { height: 32px; margin-bottom: var(--space-6); filter: brightness(0) invert(1); }

.site-footer__tagline {
  font-size: var(--text-sm);
  line-height: var(--leading-loose);
  max-width: 28ch;
  margin-bottom: var(--space-8);
}

.site-footer__col h6 {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-white);
  margin-bottom: var(--space-5);
}

.site-footer__col a {
  display: block;
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.6);
  padding-block: var(--space-2);
  transition: color var(--duration-base);
}

.site-footer__col a:hover { color: var(--color-white); }

.site-footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.4);
}

@media (max-width: 640px) {
  .site-footer__bottom { flex-direction: column; gap: var(--space-3); text-align: center; }
}

/* --------------------------------------------------------------------------
   Main content offset for fixed header
   -------------------------------------------------------------------------- */
.site-main { min-height: 60vh; }
.has-hero   .site-main { /* hero handles its own spacing */ }
body:not(.has-hero) .site-main { padding-top: 72px; }