/* ═══════════════════════════════════════════════════════════════
   GLOBAL.CSS — Design System Complement
   Variables, reset, typographie, utilitaires layout, backgrounds,
   scroll-reveal, animations
   ═══════════════════════════════════════════════════════════════ */

/* ── CSS CUSTOM PROPERTIES ─────────────────────────────────── */
:root {
  /* Couleurs primaires */
  --color-primary:        #006DE5;
  --color-primary-dark:   #003B7C;
  --color-primary-light:  #2988F1;
  --color-primary-bg:     #DFEBFF;
  --color-primary-pale:   #EBF3FF;

  /* Couleurs neutres */
  --color-black:          #000000;
  --color-dark:           #202125;
  --color-medium:         #878787;
  --color-tertiary:       #667085;
  --color-light:          #F4F7F9;
  --color-white:          #FFFFFF;
  --color-border:         #E2E2E2;
  --color-border-light:   #DAE2EF;

  /* Couleurs semantiques */
  --color-success:        #3EA15A;
  --color-success-light:  #D7FBC1;
  --color-warning:        #f2c83a;
  --color-warning-light:  #FDDEA6;
  --color-danger:         #EB5757;
  --color-danger-light:   #F8DCD6;

  /* Typographie */
  --font-display:    'Space Grotesk', sans-serif;
  --font-body:       'Inter', sans-serif;

  /* Tailles de texte */
  --text-xs:    0.75rem;
  --text-sm:    0.875rem;
  --text-base:  1rem;
  --text-lg:    1.125rem;
  --text-xl:    1.25rem;
  --text-2xl:   1.5rem;
  --text-3xl:   1.875rem;
  --text-4xl:   2.25rem;
  --text-5xl:   3rem;
  --text-6xl:   3.75rem;
  --text-7xl:   4.5rem;

  /* Espacements */
  --space-xs:   0.25rem;
  --space-sm:   0.5rem;
  --space-md:   1rem;
  --space-lg:   1.5rem;
  --space-xl:   2rem;
  --space-2xl:  3rem;
  --space-3xl:  4rem;
  --space-4xl:  6rem;
  --space-5xl:  8rem;

  /* Border radius */
  --radius-sm:   0.375rem;
  --radius-md:   0.75rem;
  --radius-lg:   1rem;
  --radius-xl:   1.5rem;
  --radius-2xl:  2rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm:  0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.05);
  --shadow-md:  0 4px 16px rgba(0,0,0,.08), 0 2px 6px rgba(0,0,0,.04);
  --shadow-lg:  0 12px 40px rgba(0,0,0,.10), 0 4px 12px rgba(0,0,0,.05);
  --shadow-xl:  0 24px 64px rgba(0,0,0,.12), 0 8px 24px rgba(0,0,0,.06);
  --shadow-blue: 0 8px 32px rgba(0,109,229,.20);
  --shadow-blue-lg: 0 16px 48px rgba(0,109,229,.28);

  /* Transitions */
  --transition-fast:   150ms cubic-bezier(.4,0,.2,1);
  --transition-base:   250ms cubic-bezier(.4,0,.2,1);
  --transition-slow:   400ms cubic-bezier(.4,0,.2,1);
  --transition-spring: 500ms cubic-bezier(.34,1.56,.64,1);

  /* Layout */
  --container-max: 1240px;
  --nav-height:    72px;
  --section-py:    6rem;

  /* ── ALIASES format court (compatibilite temporaire) ── */
  --primary:        var(--color-primary);
  --primary-dark:   var(--color-primary-dark);
  --primary-light:  var(--color-primary-light);
  --primary-bg:     var(--color-primary-bg);
  --primary-pale:   var(--color-primary-pale);
  --dark:           var(--color-dark);
  --medium:         var(--color-medium);
  --tertiary:       var(--color-tertiary);
  --light:          var(--color-light);
  --white:          var(--color-white);
  --border:         var(--color-border);
  --border-light:   var(--color-border-light);
  --success:        var(--color-success);
  --success-light:  var(--color-success-light);
  --fd:             var(--font-display);
  --fb:             var(--font-body);
  --t:              var(--transition-base);
  --nav-h:          var(--nav-height);
  --sh-sm:          var(--shadow-sm);
  --sh-md:          var(--shadow-md);
  --sh-lg:          var(--shadow-lg);
  --sh-xl:          var(--shadow-xl);
  --sh-blu:         var(--shadow-blue);
  --sh-blu-lg:      var(--shadow-blue-lg);
  --r-sm:           var(--radius-sm);
  --r-md:           var(--radius-md);
  --r-lg:           var(--radius-lg);
  --r-xl:           var(--radius-xl);
  --r-2xl:          var(--radius-2xl);
  --r-full:         var(--radius-full);
}

/* ── RESET & BASE ──────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-dark);
  background: var(--color-white);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img, video { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
ul, ol { list-style: none; }

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

/* ── TYPOGRAPHY SYSTEM ─────────────────────────────────────── */
.display-xl {
  font-family: var(--font-display);
  font-size: clamp(1.875rem, 3.2vw, 2.75rem);
  font-weight: 700; line-height: 1.1; letter-spacing: -0.03em;
}
.display-lg {
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 4.5vw, var(--text-6xl));
  font-weight: 700; line-height: 1.1; letter-spacing: -0.025em;
}
.display-md {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.5vw, var(--text-5xl));
  font-weight: 700; line-height: 1.15; letter-spacing: -0.02em;
}
.heading-xl {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 2.8vw, var(--text-4xl));
  font-weight: 600; line-height: 1.2; letter-spacing: -0.015em;
}
.heading-lg {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.2vw, var(--text-3xl));
  font-weight: 600; line-height: 1.25; letter-spacing: -0.01em;
}
.heading-md {
  font-family: var(--font-display);
  font-size: var(--text-2xl); font-weight: 600; line-height: 1.3;
}
.body-lg { font-size: var(--text-lg); line-height: 1.65; }
.body-md { font-size: var(--text-base); line-height: 1.65; }
.body-sm { font-size: var(--text-sm); line-height: 1.55; }
.label {
  font-family: var(--font-display);
  font-size: var(--text-xs); font-weight: 600;
  letter-spacing: 0.08em; text-transform: uppercase;
}

/* ── LAYOUT UTILITIES ──────────────────────────────────────── */
.container {
  width: 100%; max-width: var(--container-max);
  margin: 0 auto; padding: 0 clamp(1rem, 4vw, 2.5rem);
}
.section { padding: var(--section-py) 0; position: relative; }
.section--sm { padding: 4rem 0; }
.section--lg { padding: 8rem 0; }
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.gap-xl { gap: var(--space-xl); }
.gap-2xl { gap: var(--space-2xl); }
.text-center { text-align: center; }
.grid { display: grid; }

/* ── BACKGROUND UTILITIES ──────────────────────────────────── */
.bg-white     { background: var(--color-white); }
.bg-light     { background: var(--color-light); }
.bg-dark      { background: var(--color-dark); color: var(--color-white); }
.bg-darker    { background: #13141A; color: var(--color-white); }
.bg-primary   { background: var(--color-primary); color: var(--color-white); }
.bg-blue-pale { background: var(--color-primary-pale); }
.bg-gradient-hero {
  background:
    radial-gradient(ellipse 80% 60% at 60% 0%, rgba(0,109,229,.12) 0%, transparent 60%),
    radial-gradient(ellipse 50% 40% at 90% 100%, rgba(41,136,241,.08) 0%, transparent 50%),
    var(--color-white);
}
.bg-gradient-dark {
  background: linear-gradient(135deg, #0E1117 0%, #1A1E2E 50%, #0D1A33 100%);
}
.bg-gradient-blue {
  background: linear-gradient(135deg, #003B7C 0%, #006DE5 60%, #2988F1 100%);
}
.bg-gradient-mesh {
  background:
    radial-gradient(ellipse 70% 50% at 20% 50%, rgba(0,109,229,.07) 0%, transparent 60%),
    radial-gradient(ellipse 50% 40% at 80% 20%, rgba(41,136,241,.06) 0%, transparent 50%),
    radial-gradient(ellipse 40% 30% at 50% 90%, rgba(62,161,90,.05) 0%, transparent 50%),
    var(--color-light);
}

/* ── ANIMATED BLOBS ────────────────────────────────────────── */
.blob-container {
  position: absolute; inset: 0; overflow: hidden;
  pointer-events: none; z-index: 0;
}
.blob {
  position: absolute; border-radius: 50%;
  filter: blur(80px); opacity: 0.45;
  animation: blobFloat 8s ease-in-out infinite;
}
.blob-1 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(0,109,229,0.18) 0%, transparent 70%);
  top: -200px; right: -100px; animation-delay: 0s;
}
.blob-2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(41,136,241,0.12) 0%, transparent 70%);
  bottom: -100px; left: 10%; animation-delay: -3s;
}
@keyframes blobFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33%  { transform: translate(20px, -30px) scale(1.04); }
  66%  { transform: translate(-15px, 15px) scale(0.97); }
}

/* ── SCROLL REVEAL ─────────────────────────────────────────── */
.reveal {
  opacity: 0; transform: translateY(30px);
  transition: opacity 0.7s cubic-bezier(.4,0,.2,1), transform 0.7s cubic-bezier(.4,0,.2,1);
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.reveal-left {
  opacity: 0; transform: translateX(-40px);
  transition: opacity 0.7s cubic-bezier(.4,0,.2,1), transform 0.7s cubic-bezier(.4,0,.2,1);
}
.reveal-left.is-visible { opacity: 1; transform: translateX(0); }
.reveal-right {
  opacity: 0; transform: translateX(40px);
  transition: opacity 0.7s cubic-bezier(.4,0,.2,1), transform 0.7s cubic-bezier(.4,0,.2,1);
}
.reveal-right.is-visible { opacity: 1; transform: translateX(0); }
.reveal-scale {
  opacity: 0; transform: scale(0.92);
  transition: opacity 0.6s cubic-bezier(.4,0,.2,1), transform 0.6s cubic-bezier(.34,1.56,.64,1);
}
.reveal-scale.is-visible { opacity: 1; transform: scale(1); }

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }
.delay-5 { transition-delay: 0.5s; }
.delay-6 { transition-delay: 0.6s; }

/* ── FLOATING ANIMATION ────────────────────────────────────── */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

/* ── SPIN (loading) ────────────────────────────────────────── */
@keyframes spin { to { transform: rotate(360deg); } }