/* ================================================================
   OneMICE — Brand Design System
   Version 1.0 — Avril 2026

   Design system complet : tokens + composants de base.
   A importer dans tout livrable HTML OneMICE.
   ================================================================ */

/* ----------------------------------------------------------------
   1. Font (DM Sans via Google Fonts)
   ---------------------------------------------------------------- */
@import url('https://fonts.googleapis.com/css2?family=DM+Sans:opsz,wght@9..40,400;9..40,500;9..40,700&display=swap');

/* ----------------------------------------------------------------
   2. Design tokens
   ---------------------------------------------------------------- */
:root {
  /* Palette — principale */
  --om-vapor-mist: #DFE5ED;
  --om-steel-haze: #9DACC3;
  --om-graphite-flow: #515F78;
  --om-midnight-ink: #262B38;
  --om-neutral-grey: #DCDCDC;
  --om-orange-tangerine: #F74F23;

  /* Palette — alias semantiques */
  --om-bg-light: var(--om-vapor-mist);
  --om-bg-dark: var(--om-midnight-ink);
  --om-bg-neutral: var(--om-neutral-grey);
  --om-text-primary: var(--om-midnight-ink);
  --om-text-secondary: var(--om-graphite-flow);
  --om-text-muted: var(--om-steel-haze);
  --om-text-on-dark: var(--om-vapor-mist);
  --om-accent: var(--om-orange-tangerine);
  --om-border: rgba(38, 43, 56, 0.08);
  --om-border-strong: rgba(38, 43, 56, 0.16);

  /* Gradients */
  --om-gradient-calm: linear-gradient(180deg, #DFE5ED 0%, #9DACC3 100%);
  --om-gradient-strong: linear-gradient(180deg, #262B38 0%, #515F78 100%);
  --om-gradient-inspiring: linear-gradient(180deg, #DFE5ED 0%, #F74F23 100%);
  --om-gradient-hero: radial-gradient(ellipse at 50% 0%, #DFE5ED 0%, #9DACC3 60%, #515F78 100%);

  /* Typography */
  --om-font: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --om-size-display: clamp(3.5rem, 7vw, 7.5rem);
  --om-size-h1: clamp(2.5rem, 5vw, 4.5rem);
  --om-size-h2: clamp(2rem, 3.5vw, 3rem);
  --om-size-h3: clamp(1.5rem, 2.5vw, 2rem);
  --om-size-h4: clamp(1.125rem, 1.5vw, 1.5rem);
  --om-size-body-l: 1.125rem;
  --om-size-body: 1rem;
  --om-size-caption: 0.875rem;
  --om-size-overline: 0.75rem;

  /* Espacements (base 8) */
  --om-space-1: 0.5rem;   /* 8  */
  --om-space-2: 1rem;     /* 16 */
  --om-space-3: 1.5rem;   /* 24 */
  --om-space-4: 2rem;     /* 32 */
  --om-space-5: 3rem;     /* 48 */
  --om-space-6: 4rem;     /* 64 */
  --om-space-7: 6rem;     /* 96 */
  --om-space-8: 8rem;     /* 128 */

  /* Rayons */
  --om-radius-sm: 8px;
  --om-radius: 16px;
  --om-radius-lg: 24px;
  --om-radius-xl: 40px;
  --om-radius-pill: 999px;

  /* Ombres et effets */
  --om-shadow-soft: 0 8px 32px rgba(38, 43, 56, 0.08);
  --om-shadow-medium: 0 16px 48px rgba(38, 43, 56, 0.12);
  --om-shadow-glow-orange: 0 0 40px rgba(247, 79, 35, 0.35);
  --om-shadow-glow-steel: 0 0 40px rgba(157, 172, 195, 0.4);

  /* Grille */
  --om-container: 1280px;
  --om-container-narrow: 880px;
  --om-container-wide: 1440px;

  /* Transitions */
  --om-transition: 240ms cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ----------------------------------------------------------------
   3. Reset de base
   ---------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  margin: 0;
  font-family: var(--om-font);
  font-size: var(--om-size-body);
  line-height: 1.6;
  color: var(--om-text-primary);
  background: var(--om-bg-light);
  font-feature-settings: 'ss01', 'cv11';
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: opacity var(--om-transition);
}

a:hover {
  opacity: 0.7;
}

/* ----------------------------------------------------------------
   4. Typographie
   ---------------------------------------------------------------- */
.om-display {
  font-size: var(--om-size-display);
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0;
}

.om-h1 {
  font-size: var(--om-size-h1);
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: -0.015em;
  margin: 0;
}

.om-h2 {
  font-size: var(--om-size-h2);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin: 0;
}

.om-h3 {
  font-size: var(--om-size-h3);
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: -0.005em;
  margin: 0;
}

.om-h4 {
  font-size: var(--om-size-h4);
  font-weight: 500;
  line-height: 1.3;
  margin: 0;
}

.om-body-l {
  font-size: var(--om-size-body-l);
  line-height: 1.6;
  margin: 0;
}

.om-body {
  font-size: var(--om-size-body);
  line-height: 1.6;
  margin: 0;
}

.om-caption {
  font-size: var(--om-size-caption);
  line-height: 1.5;
  color: var(--om-text-secondary);
  margin: 0;
}

.om-overline {
  font-size: var(--om-size-overline);
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--om-text-secondary);
  margin: 0;
}

/* Accents typo */
.om-text-accent { color: var(--om-accent); }
.om-text-muted  { color: var(--om-text-muted); }
.om-text-secondary { color: var(--om-text-secondary); }
.om-text-on-dark { color: var(--om-text-on-dark); }

/* ----------------------------------------------------------------
   5. Layout
   ---------------------------------------------------------------- */
.om-container {
  width: 100%;
  max-width: var(--om-container);
  margin: 0 auto;
  padding: 0 var(--om-space-3);
}

.om-container-narrow {
  max-width: var(--om-container-narrow);
  margin: 0 auto;
  padding: 0 var(--om-space-3);
}

.om-container-wide {
  max-width: var(--om-container-wide);
  margin: 0 auto;
  padding: 0 var(--om-space-3);
}

@media (max-width: 768px) {
  .om-container,
  .om-container-narrow,
  .om-container-wide {
    padding: 0 var(--om-space-4);
  }
}

.om-section {
  padding: var(--om-space-7) 0;
}

.om-section-lg {
  padding: var(--om-space-8) 0;
}

.om-section-sm {
  padding: var(--om-space-5) 0;
}

/* Stack (vertical spacing helper) */
.om-stack-1 > * + * { margin-top: var(--om-space-1); }
.om-stack-2 > * + * { margin-top: var(--om-space-2); }
.om-stack-3 > * + * { margin-top: var(--om-space-3); }
.om-stack-4 > * + * { margin-top: var(--om-space-4); }
.om-stack-5 > * + * { margin-top: var(--om-space-5); }

/* Grille */
.om-grid {
  display: grid;
  gap: var(--om-space-3);
}

.om-grid-2 { grid-template-columns: repeat(2, 1fr); }
.om-grid-3 { grid-template-columns: repeat(3, 1fr); }
.om-grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 900px) {
  .om-grid-2, .om-grid-3, .om-grid-4 { grid-template-columns: 1fr; }
}

/* Flex helpers */
.om-flex { display: flex; }
.om-flex-center { display: flex; align-items: center; justify-content: center; }
.om-flex-between { display: flex; align-items: center; justify-content: space-between; }
.om-flex-col { display: flex; flex-direction: column; }
.om-gap-1 { gap: var(--om-space-1); }
.om-gap-2 { gap: var(--om-space-2); }
.om-gap-3 { gap: var(--om-space-3); }
.om-gap-4 { gap: var(--om-space-4); }

/* ----------------------------------------------------------------
   6. Backgrounds
   ---------------------------------------------------------------- */
.om-bg-light    { background: var(--om-bg-light); color: var(--om-text-primary); }
.om-bg-dark     { background: var(--om-bg-dark); color: var(--om-text-on-dark); }
.om-bg-neutral  { background: var(--om-bg-neutral); color: var(--om-text-primary); }
.om-bg-steel    { background: var(--om-steel-haze); color: var(--om-text-primary); }

.om-bg-gradient-calm      { background: var(--om-gradient-calm); color: var(--om-text-primary); }
.om-bg-gradient-strong    { background: var(--om-gradient-strong); color: var(--om-text-on-dark); }
.om-bg-gradient-inspiring { background: var(--om-gradient-inspiring); color: var(--om-text-primary); }
.om-bg-gradient-hero      { background: var(--om-gradient-hero); color: var(--om-text-primary); }

/* Texture : halo orange subtil (a combiner avec un bg) */
.om-accent-glow {
  position: relative;
  isolation: isolate;
}
.om-accent-glow::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 80% 20%, rgba(247, 79, 35, 0.25) 0%, transparent 50%);
  pointer-events: none;
  z-index: -1;
}

/* ----------------------------------------------------------------
   7. Composants
   ---------------------------------------------------------------- */

/* --- Card (surface standard) --- */
.om-card {
  background: #fff;
  border: 1px solid var(--om-border);
  border-radius: var(--om-radius-lg);
  padding: var(--om-space-4);
  box-shadow: var(--om-shadow-soft);
  transition: transform var(--om-transition), box-shadow var(--om-transition);
}

.om-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--om-shadow-medium);
}

/* --- Glass card (frost glass) --- */
.om-card-glass {
  background: rgba(223, 229, 237, 0.6);
  backdrop-filter: blur(20px) saturate(140%);
  -webkit-backdrop-filter: blur(20px) saturate(140%);
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: var(--om-radius-lg);
  padding: var(--om-space-4);
}

.om-card-glass-dark {
  background: rgba(38, 43, 56, 0.6);
  backdrop-filter: blur(20px) saturate(140%);
  -webkit-backdrop-filter: blur(20px) saturate(140%);
  border: 1px solid rgba(157, 172, 195, 0.2);
  border-radius: var(--om-radius-lg);
  padding: var(--om-space-4);
  color: var(--om-text-on-dark);
}

/* --- Pilier (card avec num et titre) --- */
.om-pillar {
  display: flex;
  flex-direction: column;
  gap: var(--om-space-2);
  padding: var(--om-space-4);
  border-radius: var(--om-radius-lg);
  border: 1px solid var(--om-border);
  background: rgba(255, 255, 255, 0.4);
  backdrop-filter: blur(12px);
}

.om-pillar-number {
  font-size: var(--om-size-overline);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--om-text-secondary);
}

/* --- Buttons --- */
.om-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--om-space-1);
  padding: 0.875rem 1.75rem;
  font-family: var(--om-font);
  font-size: var(--om-size-body);
  font-weight: 500;
  line-height: 1;
  border-radius: var(--om-radius-pill);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--om-transition);
  text-decoration: none;
}

.om-btn-primary {
  background: var(--om-midnight-ink);
  color: var(--om-vapor-mist);
}

.om-btn-primary:hover {
  background: var(--om-graphite-flow);
  opacity: 1;
}

.om-btn-secondary {
  background: transparent;
  color: var(--om-midnight-ink);
  border-color: var(--om-border-strong);
}

.om-btn-secondary:hover {
  background: rgba(38, 43, 56, 0.04);
  opacity: 1;
}

.om-btn-accent {
  background: var(--om-accent);
  color: #fff;
  box-shadow: var(--om-shadow-glow-orange);
}

.om-btn-accent:hover {
  opacity: 0.92;
}

.om-btn-ghost {
  background: transparent;
  color: var(--om-text-primary);
}

.om-btn-ghost:hover {
  background: rgba(38, 43, 56, 0.04);
  opacity: 1;
}

/* --- Tag / badge --- */
.om-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--om-space-1);
  padding: 0.375rem 0.875rem;
  font-size: var(--om-size-caption);
  font-weight: 500;
  border-radius: var(--om-radius-pill);
  background: rgba(38, 43, 56, 0.06);
  color: var(--om-text-primary);
  border: 1px solid var(--om-border);
}

.om-tag-accent {
  background: rgba(247, 79, 35, 0.1);
  color: var(--om-accent);
  border-color: rgba(247, 79, 35, 0.2);
}

/* --- Divider --- */
.om-divider {
  height: 1px;
  width: 100%;
  background: var(--om-border);
  border: none;
  margin: var(--om-space-4) 0;
}

.om-divider-accent {
  height: 2px;
  width: 40px;
  background: var(--om-accent);
  border: none;
  margin: var(--om-space-3) 0;
}

/* --- Logo wrapper --- */
.om-logo {
  display: inline-flex;
  align-items: center;
  height: 40px;
}

.om-logo img {
  height: 100%;
  width: auto;
}

.om-logo-lg img { height: 64px; }
.om-logo-sm img { height: 32px; }

/* --- Hero block --- */
.om-hero {
  min-height: 85vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--om-space-7) 0;
  position: relative;
  overflow: hidden;
}

.om-hero-baseline {
  font-size: var(--om-size-display);
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0 0 var(--om-space-3) 0;
}

.om-hero-subtitle {
  font-size: var(--om-size-body-l);
  line-height: 1.6;
  color: var(--om-text-secondary);
  max-width: 640px;
  margin: 0 0 var(--om-space-4) 0;
}

/* --- Triptyque (3 mots cles type "One Solution | Every Stakeholder | Full Control") --- */
.om-triptyque {
  display: flex;
  gap: var(--om-space-4);
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  padding: var(--om-space-3) 0;
}

.om-triptyque-item {
  font-size: var(--om-size-overline);
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--om-text-secondary);
}

.om-triptyque-sep {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--om-accent);
}

/* --- Highlight line (bordure lumineuse orange signature) --- */
.om-highlight-line {
  position: relative;
}

.om-highlight-line::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--om-accent);
  box-shadow: var(--om-shadow-glow-orange);
}

.om-highlight-line {
  padding-left: var(--om-space-3);
}

/* --- Navigation --- */
.om-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--om-space-2) 0;
}

.om-nav-links {
  display: flex;
  gap: var(--om-space-4);
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 0;
}

.om-nav-links a {
  font-size: var(--om-size-body);
  color: var(--om-text-primary);
}

/* --- Footer --- */
.om-footer {
  padding: var(--om-space-6) 0 var(--om-space-4);
  border-top: 1px solid var(--om-border);
  color: var(--om-text-secondary);
}

/* --- Quote / manifeste --- */
.om-manifesto {
  font-size: var(--om-size-h3);
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: -0.005em;
  color: var(--om-text-primary);
  max-width: 720px;
}

.om-manifesto p {
  margin: 0 0 var(--om-space-2) 0;
}

/* --- Stats / KPI --- */
.om-stat-value {
  font-size: var(--om-size-h1);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--om-text-primary);
}

.om-stat-label {
  font-size: var(--om-size-caption);
  color: var(--om-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: var(--om-space-1);
}

/* ----------------------------------------------------------------
   8. Utilities
   ---------------------------------------------------------------- */
.om-text-center { text-align: center; }
.om-text-right { text-align: right; }
.om-mt-0 { margin-top: 0 !important; }
.om-mb-0 { margin-bottom: 0 !important; }
.om-w-full { width: 100%; }

/* Sizing utilities pour le texte */
.om-narrow { max-width: 640px; }
.om-narrow-sm { max-width: 480px; }

/* Animation d'apparition discrete */
@keyframes om-fade-in-up {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

.om-fade-in {
  animation: om-fade-in-up 600ms cubic-bezier(0.22, 0.61, 0.36, 1) both;
}

/* ----------------------------------------------------------------
   9. Print (pour docs exportes en PDF)
   ---------------------------------------------------------------- */
@media print {
  body { background: white; }
  .om-section, .om-section-lg { page-break-inside: avoid; }
  .om-card, .om-card-glass { box-shadow: none; border: 1px solid var(--om-border); }
}