/* ==========================================================================
   layout.css — page structure: header, footer, containers, grids
   ========================================================================== */

html,
body {
  font-family: var(--font-base);
  color: var(--color-body);
  background: var(--color-bg-soft);
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-5);
}

.container--narrow {
  max-width: var(--container-narrow);
}

/* ---------------------------------- Header ---------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--color-border);
}

.site-header__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  height: var(--header-height);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: 800;
  font-size: var(--fs-md);
  color: var(--color-ink);
  letter-spacing: -0.01em;
}

.brand__mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  background: linear-gradient(145deg, var(--primary-color), var(--primary-color-dark));
  color: #fff;
  box-shadow: var(--shadow-sm);
  flex-shrink: 0;
}

.brand__mark svg {
  width: 22px;
  height: 22px;
}

.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand__text small {
  font-weight: 500;
  font-size: var(--fs-xs);
  color: var(--color-muted);
  letter-spacing: 0.01em;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: var(--space-5);
}

.main-nav__link {
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--color-ink-soft);
  padding: var(--space-2) var(--space-1);
  border-bottom: 2px solid transparent;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.main-nav__link:hover,
.main-nav__link:focus-visible {
  color: var(--primary-color-dark);
}

.main-nav__link--help {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.lang-select {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  padding: var(--space-2) var(--space-4);
  font-size: var(--fs-sm);
  font-weight: 600;
  background: var(--color-white);
  color: var(--color-ink-soft);
}

.header-cart-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-pill);
  background: var(--color-bg-alt);
  font-weight: 700;
  font-size: var(--fs-sm);
  color: var(--color-ink);
  border: 1px solid transparent;
  transition: background var(--transition-fast), border-color var(--transition-fast);
}

.header-cart-btn:hover {
  border-color: var(--color-border-strong);
}

.header-cart-btn__count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 22px;
  height: 22px;
  padding-inline: 5px;
  border-radius: var(--radius-pill);
  background: var(--primary-color);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 800;
}

.header-cart-btn[hidden],
[hidden] {
  display: none !important;
}

.mobile-menu-toggle {
  display: none;
}

/* ---------------------------------- Main / Footer ----------------------- */

.site-main {
  flex: 1 0 auto;
}

.site-footer {
  margin-top: var(--space-9);
  background: var(--color-ink);
  color: rgba(255, 255, 255, 0.75);
  padding-block: var(--space-8) var(--space-6);
}

.site-footer a {
  color: rgba(255, 255, 255, 0.75);
  transition: color var(--transition-fast);
}

.site-footer a:hover {
  color: #fff;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.1fr;
  gap: var(--space-7);
  padding-bottom: var(--space-7);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.footer-col h4 {
  color: #fff;
  font-size: var(--fs-sm);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-4);
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  font-size: var(--fs-sm);
}

.footer-brand p {
  font-size: var(--fs-sm);
  margin-top: var(--space-3);
  max-width: 32ch;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-5);
  font-size: var(--fs-xs);
  flex-wrap: wrap;
  gap: var(--space-3);
}

.trust-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--fs-xs);
  color: rgba(255, 255, 255, 0.6);
}

/* ---------------------------------- Section rhythm ---------------------- */

.section {
  padding-block: var(--space-8);
}

.section--tight {
  padding-block: var(--space-6);
}

.section-heading {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
}

.section-heading h2 {
  font-size: var(--fs-xl);
  color: var(--color-ink);
}

.section-heading p {
  color: var(--color-muted);
  font-size: var(--fs-base);
  max-width: 60ch;
}

/* ---------------------------------- Skip link ---------------------------- */

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--color-ink);
  color: #fff;
  padding: var(--space-3) var(--space-5);
  border-radius: 0 0 var(--radius-sm) 0;
  z-index: 100;
}

.skip-link:focus {
  left: 0;
}