/* ============================================
   Reset & variables
   ============================================ */
:root {
  --color-bg: #fafafa;
  --color-surface: #fff;
  --color-text: #1a1a1a;
  --color-text-muted: #5c5c5c;
  --color-border: #e5e5e5;
  --color-accent: #0d6efd;
  --color-accent-hover: #0a58ca;
  --color-megamenu-bg: #fff;
  --color-megamenu-border: #eee;
  --font-sans: 'DM Sans', system-ui, sans-serif;
  --font-heading: 'Outfit', system-ui, sans-serif;
  --header-height: 56px;
  --megamenu-shadow: 0 12px 40px rgba(0, 0, 0, 0.1);
  --transition-fast: 0.2s ease;
  --transition-megamenu: 0.25s ease;
  --container-max: 1200px;
  --breakpoint-sm: 576px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 992px;
  --breakpoint-xl: 1200px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--color-accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* Skip link (SEO + accessibilité) */
.skip-link {
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 9999;
  padding: 0.75rem 1.25rem;
  background: var(--color-accent);
  color: #fff;
  border-radius: 4px;
  font-weight: 600;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 12px;
}

/* ============================================
   Layout
   ============================================ */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1rem;
  padding-right: 1rem;
}

@media (min-width: var(--breakpoint-md)) {
  .container {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }
}

/* ============================================
   Header
   ============================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  height: var(--header-height);
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1rem;
}

@media (min-width: var(--breakpoint-lg)) {
  .header-inner {
    padding: 0 1.5rem;
  }
}

.logo {
  flex-shrink: 0;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-text);
}

.logo:hover {
  text-decoration: none;
  color: var(--color-accent);
}

/* ============================================
   Nav toggle (mobile)
   ============================================ */
.nav-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: none;
  background: transparent;
  cursor: pointer;
  color: var(--color-text);
  border-radius: 6px;
}

.nav-toggle:hover {
  background: var(--color-bg);
}

@media (min-width: var(--breakpoint-lg)) {
  .nav-toggle {
    display: none;
  }
}

.hamburger,
.hamburger::before,
.hamburger::after {
  width: 22px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.hamburger {
  position: relative;
}

.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
  left: 0;
}

.hamburger::before {
  top: -7px;
}

.hamburger::after {
  top: 7px;
}

.nav-open .hamburger {
  background: transparent;
}

.nav-open .hamburger::before {
  transform: translateY(7px) rotate(45deg);
}

.nav-open .hamburger::after {
  transform: translateY(-7px) rotate(-45deg);
}

/* ============================================
   Main nav
   ============================================ */
.main-nav {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-surface);
  overflow-y: auto;
  transform: translateX(-100%);
  transition: transform var(--transition-megamenu), visibility var(--transition-megamenu);
  visibility: hidden;
  z-index: 99;
}

@media (min-width: var(--breakpoint-lg)) {
  .main-nav {
    position: static;
    transform: none;
    visibility: visible;
    overflow: visible;
    flex: 1;
    display: flex;
    justify-content: center;
  }
}

.nav-open .main-nav {
  transform: translateX(0);
  visibility: visible;
}

.nav-list {
  list-style: none;
  margin: 0;
  padding: 1rem 0;
}

@media (min-width: var(--breakpoint-lg)) {
  .nav-list {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0;
  }
}

.nav-item {
  border-bottom: 1px solid var(--color-border);
}

@media (min-width: var(--breakpoint-lg)) {
  .nav-item {
    border-bottom: none;
    position: relative;
  }
}

.nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 0.875rem 1.25rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--color-text);
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  text-decoration: none;
  transition: background var(--transition-fast), color var(--transition-fast);
}

@media (min-width: var(--breakpoint-lg)) {
  .nav-link {
    width: auto;
    padding: 0.5rem 0.875rem;
    border-radius: 6px;
  }

  .nav-link:hover {
    background: var(--color-bg);
    color: var(--color-accent);
    text-decoration: none;
  }

  .has-megamenu .nav-link::after {
    content: '';
    width: 0;
    height: 0;
    margin-left: 4px;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-top: 5px solid currentColor;
    opacity: 0.7;
  }

  .has-megamenu .nav-item.is-open .nav-link::after {
    transform: rotate(180deg);
  }
}

/* ============================================
   Mega menu
   ============================================ */
.megamenu {
  max-height: 0;
  overflow: hidden;
  background: var(--color-megamenu-bg);
  transition: max-height var(--transition-megamenu);
}

@media (min-width: var(--breakpoint-lg)) {
  .megamenu {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    top: 100%;
    width: min(900px, calc(100vw - 2rem));
    max-height: none;
    overflow: visible;
    opacity: 0;
    visibility: hidden;
    box-shadow: var(--megamenu-shadow);
    border-radius: 0 0 12px 12px;
    border: 1px solid var(--color-megamenu-border);
    border-top: none;
  }

  .megamenu[aria-hidden="false"] {
    opacity: 1;
    visibility: visible;
  }
}

/* Mobile: expand inline */
.nav-item.is-open .megamenu {
  max-height: 80vh;
}

@media (min-width: var(--breakpoint-lg)) {
  .nav-item.is-open .megamenu {
    max-height: none;
  }
}

.megamenu-inner {
  padding: 1rem 1.25rem;
}

@media (min-width: var(--breakpoint-md)) {
  .megamenu-inner {
    padding: 1.5rem 1.75rem;
  }
}

.megamenu-grid {
  display: grid;
  gap: 1.25rem;
}

@media (min-width: var(--breakpoint-sm)) {
  .megamenu-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: var(--breakpoint-md)) {
  .megamenu-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
  }
}

.megamenu-grid-brands {
  grid-template-columns: 1fr;
}

@media (min-width: var(--breakpoint-sm)) {
  .megamenu-grid-brands {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: var(--breakpoint-md)) {
  .megamenu-grid-brands {
    grid-template-columns: repeat(4, 1fr);
  }
}

.megamenu-block {
  min-width: 0;
}

.megamenu-title {
  margin: 0 0 0.5rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
}

.megamenu-block ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.megamenu-block ul li {
  margin: 0;
}

.megamenu-block ul a {
  display: block;
  padding: 0.35rem 0;
  font-size: 0.9375rem;
  color: var(--color-text);
  text-decoration: none;
  transition: color var(--transition-fast), padding-left var(--transition-fast);
}

.megamenu-block ul a:hover {
  color: var(--color-accent);
  text-decoration: none;
}

@media (min-width: var(--breakpoint-md)) {
  .megamenu-block ul a:hover {
    padding-left: 6px;
  }
}

.megamenu-cta {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
  text-align: center;
}

@media (min-width: var(--breakpoint-lg)) {
  .megamenu-cta {
    margin-top: 1.25rem;
    padding-top: 1.25rem;
  }
}

.btn-all-brands {
  display: inline-block;
  padding: 0.5rem 1.25rem;
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--color-surface);
  background: var(--color-accent);
  border-radius: 6px;
  text-decoration: none;
  transition: background var(--transition-fast);
}

.btn-all-brands:hover {
  background: var(--color-accent-hover);
  color: var(--color-surface);
  text-decoration: none;
}

/* Backdrop (desktop) */
.megamenu-backdrop {
  position: fixed;
  inset: 0;
  background: transparent;
  z-index: 98;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition-megamenu);
}

.megamenu-backdrop.is-visible {
  pointer-events: auto;
  opacity: 1;
}

@media (max-width: calc(var(--breakpoint-lg) - 1px)) {
  .megamenu-backdrop {
    display: none;
  }
}

/* ============================================
   Header actions
   ============================================ */
.header-actions {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  color: var(--color-text);
  border-radius: 6px;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.icon-btn:hover {
  background: var(--color-bg);
  color: var(--color-accent);
}

/* ============================================
   Main content
   ============================================ */
.main {
  min-height: calc(100vh - var(--header-height) - 120px);
}

.hero {
  padding: 2.5rem 0;
  background: linear-gradient(135deg, #f0f4ff 0%, #fafafa 100%);
}

@media (min-width: var(--breakpoint-md)) {
  .hero {
    padding: 4rem 0;
  }
}

.hero h1 {
  margin: 0 0 0.5rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  line-height: 1.2;
}

.hero-lead {
  margin: 0;
  font-size: 1.0625rem;
  color: var(--color-text-muted);
}

.content-section {
  padding: 2rem 0;
}

.content-section h2 {
  margin: 0 0 0.75rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.25rem;
}

.content-section p {
  margin: 0;
  color: var(--color-text-muted);
  max-width: 60ch;
}

/* ============================================
   Footer
   ============================================ */
.site-footer {
  padding: 1.5rem 0;
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
  text-align: center;
}

.site-footer p {
  margin: 0;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* ============================================
   Responsive: ensure touch targets
   ============================================ */
@media (max-width: calc(var(--breakpoint-lg) - 1px)) {
  .nav-link {
    min-height: 48px;
  }
}