/* Reset & Base */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + var(--space-md));
}
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-gray-700);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img,
picture,
video,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

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

a:hover {
  color: var(--color-primary);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid rgba(15, 76, 129, 0.45);
  outline-offset: 2px;
  border-radius: 4px;
}

ul,
ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

input,
select,
textarea {
  font-family: inherit;
  font-size: inherit;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: var(--line-height-tight);
  color: var(--color-gray-900);
  letter-spacing: -0.02em;
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }

p {
  margin-bottom: var(--space-md);
}

p:last-child {
  margin-bottom: 0;
}

::selection {
  background: rgba(198, 40, 40, 0.16);
  color: var(--color-primary-dark);
}

/* Utilitaires */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Masquer proprement (réactivable) */
.is-hidden {
  display: none !important;
}

.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-md);
  z-index: 9999;
  padding: var(--space-sm) var(--space-md);
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--radius-sm);
  font-weight: 600;
}

.skip-link:focus {
  top: var(--space-md);
}

/* Typographie utilitaire */
.text-center { text-align: center; }
.text-primary { color: var(--color-primary); }
.text-accent { color: var(--color-accent); }
.text-muted { color: var(--color-gray-500); }
.text-white { color: var(--color-white); }

.text-gradient {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

/* Label de section */
.section-label {
  display: block;
  font-family: var(--font-body);
  font-size: var(--font-size-sm);
  font-weight: 500;
  font-style: italic;
  letter-spacing: 0.01em;
  color: var(--color-gray-500);
  margin-bottom: var(--space-sm);
}

.section-header .section-label::after {
  content: '';
  display: block;
  width: 40px;
  height: 2px;
  margin: var(--space-sm) auto 0;
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  border-radius: 2px;
}

.section-label::after {
  content: '';
  display: block;
  width: 40px;
  height: 2px;
  margin-top: var(--space-sm);
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  border-radius: 2px;
}

.section-title {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--space-md);
  letter-spacing: -0.025em;
}

.section-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-gray-500);
  max-width: 640px;
  margin: 0 auto var(--space-2xl);
  line-height: var(--line-height-normal);
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

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

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

/* Espacement des sections */
.section {
  padding: var(--space-4xl) 0;
  position: relative;
}

.section--gray {
  background-color: var(--color-gray-50);
  background-image:
    radial-gradient(600px 300px at 100% 0%, rgba(15, 76, 129, 0.04), transparent 60%),
    radial-gradient(600px 300px at 0% 100%, rgba(198, 40, 40, 0.04), transparent 60%);
}

.section--accent {
  background: var(--gradient-ocean);
  color: var(--color-white);
}

.section--accent .section-title,
.section--accent h2,
.section--accent h3 {
  color: var(--color-white);
}

.section--accent .section-subtitle {
  color: rgba(255, 255, 255, 0.85);
}

/* Boutons */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.9rem 1.8rem;
  font-family: var(--font-heading);
  font-size: var(--font-size-sm);
  font-weight: 600;
  letter-spacing: 0.01em;
  border-radius: var(--radius-full);
  transition: transform var(--transition-base), box-shadow var(--transition-base), background var(--transition-base), color var(--transition-base), border-color var(--transition-base);
  white-space: nowrap;
  cursor: pointer;
  border: 2px solid transparent;
  overflow: hidden;
  isolation: isolate;
}

/* Effet de brillance au survol */
.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-sheen);
  transform: translateX(-120%);
  transition: transform var(--transition-slow);
  z-index: -1;
}

.btn:hover::after {
  transform: translateX(120%);
}

.btn--primary {
  background: var(--gradient-brand);
  color: var(--color-white);
  box-shadow: var(--shadow-primary);
}

.btn--primary:hover {
  color: var(--color-white);
  transform: translateY(-3px);
  box-shadow: 0 20px 38px -12px rgba(198, 40, 40, 0.62);
}

.btn--secondary {
  background-color: var(--color-white);
  color: var(--color-accent);
  border-color: var(--color-white);
  box-shadow: var(--shadow-md);
}

.btn--secondary:hover {
  background-color: var(--color-white);
  color: var(--color-primary);
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.btn--outline {
  background-color: transparent;
  color: var(--color-primary);
  border-color: rgba(198, 40, 40, 0.35);
}

.btn--outline:hover {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-3px);
  box-shadow: var(--shadow-primary);
}

.btn--accent {
  background: var(--gradient-ocean);
  color: var(--color-white);
  box-shadow: var(--shadow-accent);
}

.btn--accent:hover {
  color: var(--color-white);
  transform: translateY(-3px);
  box-shadow: 0 20px 38px -12px rgba(15, 76, 129, 0.6);
}

.btn--gold {
  background: var(--gradient-gold);
  color: var(--color-gray-900);
  box-shadow: var(--shadow-gold);
}

.btn--gold:hover {
  color: var(--color-gray-900);
  transform: translateY(-3px);
  box-shadow: 0 20px 38px -12px rgba(244, 180, 0, 0.62);
}

.btn--whatsapp {
  background-color: var(--color-whatsapp);
  color: var(--color-white);
  border-color: var(--color-whatsapp);
  box-shadow: var(--shadow-whatsapp);
}

.btn--whatsapp:hover {
  background-color: var(--color-whatsapp-dark);
  border-color: var(--color-whatsapp-dark);
  color: var(--color-white);
  transform: translateY(-3px);
}

.btn--sm {
  padding: 0.6rem 1.2rem;
  font-size: var(--font-size-xs);
}

.btn--lg {
  padding: 1.05rem 2.1rem;
  font-size: var(--font-size-base);
}

/* Animations */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-14px); }
}

@keyframes floatSlow {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(0, -22px); }
}

@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

@keyframes pulseRing {
  0% { transform: scale(0.9); opacity: 0.7; }
  70% { transform: scale(1.6); opacity: 0; }
  100% { opacity: 0; }
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(34px);
  transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.animate-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .animate-on-scroll {
    opacity: 1;
    transform: none;
    transition: none;
  }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}