/* ============================================================================
   LAYOUT — structure (header fixe, footer, drawer, flash).
   Header papier blanc fileté de rouge ; footer noir du badge, étoiles orange.
   ========================================================================== */

/* === CONTAINER === */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

/* === HEADER === */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--kf-line);
  box-shadow: 0 10px 24px -18px rgba(30, 10, 8, 0.35);
  transition: box-shadow var(--transition-slow);
}

/* Liseré ruban en tête de page, comme le bord rouge du menu. */
.header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--kf-red-deep), var(--kf-red-hot) 45%, var(--kf-red));
}

.header-spacer { height: var(--header-height); }

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.header-actions { display: flex; align-items: center; gap: 12px; }

.header-logo { display: inline-flex; align-items: center; }
.header-logo img { height: 60px; width: auto; object-fit: contain; filter: drop-shadow(0 4px 10px rgba(30, 10, 8, 0.25)); }

.nav-btn {
  width: 46px;
  height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.3rem;
  color: var(--kf-ink);
  border-radius: var(--radius-md);
  background: #fff;
  border: 2px solid #e6e6e6;
  transition: transform var(--transition-fast), border-color var(--transition-normal), box-shadow var(--transition-normal), color var(--transition-normal);
  position: relative;
}

.nav-btn:hover { transform: translateY(-2px); border-color: var(--kf-red); color: var(--kf-red); box-shadow: var(--shadow-md); }
.nav-btn:active { transform: scale(0.92); }

.cart-count-badge {
  position: absolute;
  top: -8px;
  right: -8px;
  background: var(--kf-ribbon-grad);
  color: #fff;
  font-family: var(--font-family-ui);
  font-size: 12px;
  letter-spacing: 0;
  min-width: 22px;
  height: 22px;
  padding: 0 5px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid #fff;
  box-shadow: 0 3px 8px -2px rgba(160, 12, 12, 0.6);
}

/* === MAIN === */
.main {
  min-height: calc(100vh - var(--header-height) - 220px);
  padding: var(--space-8) 0;
  background: transparent;
}

/* === FOOTER — bande noire du badge, liseré rouge, étoiles orange === */
.footer {
  padding: 56px 20px 40px;
  background: var(--kf-ink);
  border-top: 4px solid var(--kf-red);
  text-align: center;
  position: relative;
}

/* ★★★ d'ouverture, comme sur le logo */
.footer::before {
  content: '★ ★ ★';
  display: block;
  color: var(--kf-orange);
  font-size: 0.85rem;
  letter-spacing: 0.6em;
  margin-bottom: 26px;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 30px;
  margin-bottom: 34px;
  flex-wrap: wrap;
}

.footer-link {
  font-family: var(--font-family-heading);
  text-transform: uppercase;
  font-size: 1rem;
  letter-spacing: 0.14em;
  color: rgba(255, 255, 255, 0.85);
  transition: color var(--transition-normal), transform var(--transition-normal);
}

.footer-link:hover { transform: translateY(-2px); color: var(--kf-orange); }

.copyright { color: rgba(255, 255, 255, 0.45); font-size: 0.8rem; margin: 0; }

/* Crédit agence — lien bleu « web » */
.credit-link { color: #4ea6ff; text-decoration: none; }
.credit-link:hover { color: #7bbcff; }

/* === FLASH MESSAGES === */
.flash-messages {
  position: fixed;
  top: calc(var(--header-height) + var(--space-4));
  right: var(--space-4);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.flash {
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  font-family: var(--font-family-ui);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 1rem;
  box-shadow: var(--shadow-lg);
  animation: slideIn var(--transition-normal);
}

.flash-success { background-color: var(--color-success); color: #fff; }
.flash-error   { background-color: var(--color-error);   color: #fff; }
.flash-warning { background-color: var(--color-warning); color: #fff; }
.flash-info    { background-color: var(--kf-ink);        color: #fff; }

@keyframes slideIn {
  from { transform: translateX(110%); opacity: 0; }
  to   { transform: translateX(0); opacity: 1; }
}

@media (max-width: 768px) {
  .header-logo img { height: 48px; }
  .flash-messages { left: var(--space-4); right: var(--space-4); }
}

/* === MENU OVERLAY (mobile nav) === */
html.nav-open { overflow: hidden; }

.nav-overlay {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  background: rgba(24, 8, 6, 0.45);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: none;
  align-items: flex-end;
  justify-content: center;
  padding: 12px;
}

.nav-overlay.is-open { display: flex; }
.nav-overlay[hidden] { display: none !important; }

.nav-drawer {
  width: min(560px, 100%);
  max-height: 88vh;
  background: #fff;
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  border-top: 4px solid var(--kf-red);
  box-shadow: 0 -30px 80px rgba(24, 8, 6, 0.4);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  animation: drawerSlideUp 0.5s cubic-bezier(0.19, 1, 0.22, 1);
}

@keyframes drawerSlideUp {
  from { transform: translateY(100%); opacity: 0; }
  to   { transform: translateY(0); opacity: 1; }
}

.nav-drawer__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 22px 16px;
  border-bottom: 1px solid var(--kf-line);
}

.nav-drawer__title {
  font-family: var(--font-family-heading);
  font-size: 1.45rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--kf-ink);
}

.nav-drawer__close {
  width: 46px;
  height: 46px;
  border: 2px solid #e6e6e6;
  background: #fff;
  border-radius: var(--radius-md);
  color: var(--kf-ink);
  transition: all var(--transition-normal);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.nav-drawer__close:hover {
  background: rgba(var(--kf-red-rgb), 0.08);
  border-color: var(--kf-red);
  color: var(--kf-red);
  transform: rotate(90deg);
}

.nav-drawer__body {
  padding: 20px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.nav-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 15px 20px;
  border-radius: var(--radius-md);
  background: var(--kf-paper-2);
  border: 1px solid var(--kf-line);
  color: var(--kf-ink);
  font-family: var(--font-family-heading);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 1.05rem;
  transition: transform var(--transition-normal), border-color var(--transition-normal), color var(--transition-normal), background var(--transition-normal);
}

.nav-item:hover { transform: translateX(6px); border-color: var(--kf-red); color: var(--kf-red); background: #fff; }

.nav-item--highlight {
  background: var(--kf-ribbon-grad);
  color: #fff;
  border: none;
  box-shadow: var(--kf-shadow-red);
}
.nav-item--highlight:hover { color: #fff; background: var(--kf-red-deep); }

.nav-divider {
  margin: 24px 16px 8px;
  font-family: var(--font-family-heading);
  font-size: 0.9rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--kf-red);
}

.nav-drawer__footer {
  padding: 20px;
  border-top: 1px solid var(--kf-line);
  text-align: center;
  background: var(--kf-paper-2);
}

.nav-drawer__brand {
  margin: 0;
  font-family: var(--font-family-accent);
  font-size: 1.35rem;
  color: var(--kf-red);
  text-transform: none;
}
.nav-drawer__sub { margin: 6px 0 0; font-size: 0.9rem; color: var(--kf-muted); }