/* ==========================================================================
   LFC Formation — Base (reset + typo + utilitaires)
   Inspiré du reset Josh Comeau.
   ========================================================================== */

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

* {
  margin: 0;
}

html, body {
  height: 100%;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: var(--lh-base);
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

input, button, textarea, select {
  font: inherit;
  color: inherit;
}

p, h1, h2, h3, h4, h5, h6 {
  overflow-wrap: break-word;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: var(--lh-tight);
  color: var(--color-text);
}

h1 { font-size: var(--fs-h1); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); font-weight: 600; }

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

a:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

ul, ol {
  padding-left: 1.25em;
}

li + li {
  margin-top: var(--space-2);
}

/* --- Focus visible global --- */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* --- Utilitaires --- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

.section {
  padding-block: var(--space-16);
}

@media (min-width: 768px) {
  .section {
    padding-block: var(--space-24);
  }
}

.section--soft {
  background: var(--color-bg-soft);
}

.section--primary-soft {
  background: var(--color-primary-soft);
}

.section--dark {
  background: var(--color-bg-dark);
  color: var(--color-bg);
}

.section--dark h1,
.section--dark h2,
.section--dark h3 {
  color: var(--color-bg);
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: var(--fs-small);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}

.text-muted {
  color: var(--color-text-muted);
}

.text-center {
  text-align: center;
}

.section-header {
  max-width: 720px;
  margin-inline: auto;
  margin-bottom: var(--space-12);
  text-align: center;
}

.section-header h2 {
  font-size: var(--fs-h1);
  margin-bottom: var(--space-4);
}

.section-header p {
  color: var(--color-text-muted);
}

/* Display heading (Hero) */
.h-display {
  font-size: var(--fs-display);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

/* Texte accent surligné pêche */
.highlight {
  background: linear-gradient(transparent 65%, rgba(255, 168, 128, 0.35) 65%);
  padding: 0 0.1em;
}

/* Lien soulignement animé */
.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 600;
  color: var(--color-primary);
}

.link-arrow:hover {
  text-decoration: none;
}

.link-arrow svg {
  transition: transform var(--transition-fast);
}

.link-arrow:hover svg {
  transform: translateX(4px);
}

/* Skip link */
.skip-link {
  position: absolute;
  top: -100px;
  left: var(--space-4);
  background: var(--color-primary);
  color: var(--color-bg);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  z-index: 9999;
  font-weight: 600;
}

.skip-link:focus {
  top: var(--space-4);
}

/* Screen reader only */
.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;
}

/* Grilles */
.grid {
  display: grid;
  gap: var(--space-6);
}

.grid--2 {
  grid-template-columns: 1fr;
}

.grid--3 {
  grid-template-columns: 1fr;
}

.grid--4 {
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .grid--2 { grid-template-columns: repeat(2, 1fr); }
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .grid--3 { grid-template-columns: repeat(3, 1fr); }
  .grid--4 { grid-template-columns: repeat(4, 1fr); }
}

/* Stack vertical avec gap */
.stack {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.stack--lg { gap: var(--space-8); }

/* Cluster (flex horizontal qui wrappe) */
.cluster {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
}

/* Révélation au scroll */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 600ms var(--ease), transform 600ms var(--ease);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Respect du reduce-motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}