/* ═════ HEADER ═════ */
header {
  padding: 18px 32px;
  border-bottom: 1px solid var(--color-border);
  background: color-mix(in srgb, var(--color-bg-deep) 85%, transparent);
  backdrop-filter: blur(12px);
  position: sticky; top: 0; z-index: 40;
}
.header-inner {
  max-width: 1320px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px;
}
.brand-logo {
  display: inline-flex; align-items: center; gap: 12px;
  font-family: var(--font-display);
  font-style: italic; font-weight: 500;
  font-size: 26px;
  color: var(--color-text);
  line-height: 1;
  white-space: nowrap;
  letter-spacing: -0.015em;
}
.brand-logo-img-wrap {
  width: 52px; height: 52px;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
  animation: logo-pulse 3s ease-in-out infinite;
}
.brand-logo-img-wrap img {
  width: 118%; height: 118%;
  object-fit: cover;
  margin: -9%;
  display: block;
}
@keyframes logo-pulse {
  0%, 100% { filter: drop-shadow(0 0 10px rgba(232, 64, 216, 0.4)) drop-shadow(0 0 20px rgba(0, 212, 255, 0.2)); transform: scale(1); }
  50% { filter: drop-shadow(0 0 16px rgba(232, 64, 216, 0.7)) drop-shadow(0 0 28px rgba(245, 198, 89, 0.4)); transform: scale(1.04); }
}
.brand-name .dot { color: var(--color-gold); }

/* ═════ NAV ═════ */
nav ul { display: flex; gap: 28px; list-style: none; }
nav a {
  color: var(--color-text-muted);
  font-size: 14px;
  font-weight: 500;
  display: inline-flex; align-items: center; gap: 6px;
}
nav a:hover { color: var(--color-gold); }
nav a .nav-emoji {
  font-size: 15px;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  filter: drop-shadow(0 0 4px rgba(245, 198, 89, 0.3));
  transition: filter 200ms ease, transform 200ms ease;
}
nav a:hover .nav-emoji {
  filter: drop-shadow(0 0 8px rgba(245, 198, 89, 0.7));
  transform: scale(1.1);
}
nav a .nav-emoji.nav-infinity {
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--color-gold);
  font-weight: 500;
}

/* ═════ HEADER ACTIONS ═════ */
.header-actions { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }

/* ═════ AUDIO CONTROLS ═════ */
.audio-controls {
  display: inline-flex;
  gap: 4px;
  padding: 3px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 100px;
}
.audio-toggle-btn {
  width: 34px; height: 34px;
  border-radius: 50%;
  border: none;
  background: transparent;
  color: var(--color-text-muted);
  cursor: pointer;
  display: grid; place-items: center;
  font-size: 15px;
  transition: all 200ms ease;
  position: relative;
}
.audio-toggle-btn:hover { color: var(--color-gold); }
.audio-toggle-btn.active {
  background: var(--color-gold);
  color: var(--color-bg-deep);
  box-shadow: 0 0 12px rgba(245, 198, 89, 0.5);
}
.audio-toggle-btn .tooltip {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  margin-top: 8px;
  background: var(--color-bg-deep);
  color: var(--color-text);
  padding: 5px 10px;
  border-radius: 4px;
  font-size: 11px;
  font-family: var(--font-mono);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 200ms ease;
  border: 1px solid var(--color-border-glow);
  z-index: 10;
}
.audio-toggle-btn:hover .tooltip { opacity: 1; }

/* ═════ THEME SWITCH ═════ */
.theme-switch {
  display: inline-flex;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 100px;
  padding: 3px;
}
.theme-switch button {
  background: transparent; border: none;
  padding: 6px 12px;
  font-size: 12px; font-weight: 600;
  color: var(--color-text-muted);
  opacity: 0.75;
  cursor: pointer;
  border-radius: 100px;
}
.theme-switch button:hover { color: var(--color-gold); opacity: 1; }
.theme-switch button.active { background: var(--color-gold); color: var(--color-bg); opacity: 1; }

/* ═════ BTN CONFIGURATEUR ═════ */
.btn-configurateur, .hero-ctas .btn-primary {
  background: linear-gradient(100deg, var(--color-gold) 0%, var(--color-orange) 50%, var(--color-magenta) 100%);
  background-size: 200% 100%;
  animation: cta-shimmer 4s ease-in-out infinite;
}
.btn-configurateur {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 10px 20px 10px 18px;
  min-width: 210px;
  border-radius: 4px;
  font-weight: 700; font-size: 14px;
  color: var(--color-bg-deep);
  border: 1px solid var(--color-gold);
  box-shadow: 0 0 20px rgba(245, 198, 89, 0.3);
  transition: transform 200ms ease;
}
@keyframes cta-shimmer {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; box-shadow: 0 0 30px rgba(232, 64, 216, 0.5); }
}
.btn-configurateur:hover { transform: translateY(-1px) scale(1.02); }
.btn-configurateur .cta-wand { font-size: 16px; }
.btn-configurateur .cta-main { font-weight: 700; font-size: 14px; }
.btn-configurateur .cta-sub {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0.75;
  border-left: 1px solid rgba(10,5,24,0.3);
  padding-left: 10px;
}


/* ═════ RESPONSIVE ═════ */
@media (max-width: 960px) {
  .header-inner { flex-wrap: wrap; }
  nav ul { gap: 16px; flex-wrap: wrap; }
  .header-actions { gap: 8px; }
}
@media (max-width: 720px) {
  header { padding: 14px 16px; }
  .header-inner { gap: 12px; }
  .brand-logo { font-size: 20px; }
  .brand-logo-img-wrap { width: 36px; height: 36px; }
}

/* ═══ MOBILE MENU ═══ */
.nav-desktop, .header-actions-desktop { display: flex; }
.header-mobile-actions, .mobile-menu { display: none; }

@media (max-width: 900px) {
  .nav-desktop, .header-actions-desktop { display: none; }
  .header-mobile-actions { display: flex; gap: 10px; align-items: center; }
  .btn-configurateur-mobile {
    padding: 8px 14px;
    border-radius: 100px;
    background: linear-gradient(100deg, var(--color-gold), var(--color-orange), var(--color-magenta));
    background-size: 200% 100%;
    color: var(--color-bg-deep);
    font-weight: 700;
    font-size: 13px;
    text-decoration: none;
    animation: cta-shimmer 4s ease-in-out infinite;
  }
  .hamburger-btn {
    width: 40px; height: 40px;
    background: transparent;
    border: 1px solid var(--color-border-glow);
    border-radius: 8px;
    display: flex; flex-direction: column;
    justify-content: center; align-items: center;
    gap: 4px;
    cursor: pointer;
    padding: 0;
  }
  .hamburger-btn span {
    width: 18px; height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: transform 300ms ease, opacity 300ms ease;
    display: block;
  }
  .hamburger-btn[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
  .hamburger-btn[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .hamburger-btn[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

  .mobile-menu {
    display: block;
    position: fixed;
    top: 80px; left: 0; right: 0; bottom: 0;
    background: var(--color-bg-deep);
    padding: 32px 24px;
    overflow-y: auto;
    transform: translateX(100%);
    transition: transform 300ms ease;
    z-index: 38;
  }
  .mobile-menu[aria-hidden="false"] { transform: translateX(0); }
  .mobile-menu-nav { display: flex; flex-direction: column; gap: 4px; }
  .mobile-menu-nav a {
    padding: 16px 20px;
    border-radius: 12px;
    display: flex; align-items: center; gap: 14px;
    font-size: 17px;
    color: var(--color-text);
    border: 1px solid transparent;
    text-decoration: none;
  }
  .mobile-menu-nav a:hover, .mobile-menu-nav a:active {
    background: var(--color-surface);
    border-color: var(--color-gold-lo);
  }
  .mobile-menu-nav .nav-emoji { font-size: 22px; }
  .mobile-menu-controls {
    margin-top: 32px; padding-top: 24px;
    border-top: 1px solid var(--color-border);
    display: flex; flex-direction: column; gap: 16px;
  }
  .mobile-menu-label {
    font-family: var(--font-mono); font-size: 11px;
    letter-spacing: 0.15em; text-transform: uppercase;
    color: var(--color-gold);
  }
  .mobile-menu .audio-controls, .mobile-menu .theme-switch { display: flex; width: 100%; }
  .mobile-menu .audio-toggle-btn {
    width: auto; padding: 10px 16px; flex: 1;
    display: flex; gap: 6px; align-items: center; justify-content: center;
    font-size: 13px;
  }
  .mobile-menu .theme-switch button { flex: 1; padding: 10px; }
}

/* ═══ STICKY CTA MOBILE ═══ */
.sticky-cta-mobile {
  display: none;
  position: fixed;
  bottom: 0; left: 0; right: 0;
  padding: 12px 16px calc(12px + env(safe-area-inset-bottom));
  background: linear-gradient(180deg, rgba(10,5,24,0.95), rgba(10,5,24,1));
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--color-gold-lo);
  z-index: 48;
}
@media (max-width: 720px) {
  .sticky-cta-mobile { display: block; }
  body { padding-bottom: 80px; }
}
.sticky-cta-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 12px 18px;
  border-radius: 14px;
  background: linear-gradient(100deg, var(--color-gold) 0%, var(--color-orange) 50%, var(--color-magenta) 100%);
  background-size: 200% 100%;
  color: var(--color-bg-deep);
  text-decoration: none;
  animation: cta-shimmer 4s ease-in-out infinite;
  box-shadow: 0 -4px 24px rgba(245,198,89,0.3);
}
.sticky-cta-btn > span:first-child { font-size: 22px; }
.sticky-cta-btn strong { display: block; font-size: 14px; font-weight: 700; }
.sticky-cta-btn small { display: block; font-size: 11px; font-family: var(--font-mono); letter-spacing: 0.05em; opacity: 0.8; }
.sticky-cta-btn .arrow { margin-left: auto; font-size: 18px; font-weight: 700; }

/* Fix zero glyph on all mono elements */
.btn-configurateur .cta-sub,
.btn-configurateur-mobile,
.fc-unit b,
.sticky-cta-btn small,
.proof-sub,
.fsb-year,
.hsb-ida,
.fsb-ida {
  font-feature-settings: "zero" 0 !important;
  font-variant-numeric: normal !important;
}

/* Fix theme switch visibility */
.theme-switch button {
  color: var(--color-text-muted) !important;
  opacity: 1 !important;
}
.theme-switch button:not(.active) {
  color: var(--color-text) !important;
  opacity: 0.7 !important;
}
.theme-switch button:hover {
  color: var(--color-gold) !important;
  opacity: 1 !important;
}
.theme-switch button.active {
  background: var(--color-gold) !important;
  color: var(--color-bg-deep) !important;
  opacity: 1 !important;
}