/* ============================================================
   MONDIAL JOBS — Design System v1.0
   Unified visual language for all pages
   ============================================================ */

/* --- CSS Custom Properties (Design Tokens) ---
   Aligne sur les designs Stitch (Design stitch_projet_mondialjobs/)
   primary : #1a227f, accent : #0ea5e9, bg-light : #f6f6f8 */
:root {
  /* Primary palette */
  --color-primary: #1a227f;
  --color-primary-light: #2a35a5;
  --color-primary-hover: #131869;
  --color-primary-10: rgba(26, 34, 127, 0.10);
  --color-primary-5: rgba(26, 34, 127, 0.05);

  /* Accent */
  --color-accent: #0ea5e9;
  --color-accent-hover: #0284c7;
  --color-accent-light: rgba(14, 165, 233, 0.10);

  /* CTA / Orange */
  --color-cta: #F97316;
  --color-cta-hover: #EA580C;
  --color-cta-light: rgba(249, 115, 22, 0.10);

  /* Semantic */
  --color-success: #10B981;
  --color-success-light: rgba(16, 185, 129, 0.10);
  --color-warning: #F59E0B;
  --color-warning-light: rgba(245, 158, 11, 0.10);
  --color-error: #EF4444;
  --color-error-light: rgba(239, 68, 68, 0.10);
  --color-info: #3B82F6;
  --color-info-light: rgba(59, 130, 246, 0.10);

  /* Neutrals */
  --color-text: #0F172A;
  --color-text-secondary: #475569;
  --color-text-muted: #94A3B8;
  --color-border: #E2E8F0;
  --color-border-light: #F1F5F9;
  --color-surface: #FFFFFF;
  --color-background: #f6f6f8;
  --color-background-alt: #F1F5F9;

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-xs: 0.75rem;    /* 12px */
  --font-size-sm: 0.875rem;   /* 14px */
  --font-size-base: 1rem;     /* 16px */
  --font-size-lg: 1.125rem;   /* 18px */
  --font-size-xl: 1.25rem;    /* 20px */
  --font-size-2xl: 1.5rem;    /* 24px */
  --font-size-3xl: 1.875rem;  /* 30px */
  --font-size-4xl: 2.25rem;   /* 36px */
  --font-size-5xl: 3rem;      /* 48px */
  --font-size-6xl: 3.75rem;   /* 60px */

  /* Spacing scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Radii */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.25rem;
  --radius-3xl: 1.5rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.08), 0 8px 10px -6px rgba(0,0,0,0.04);
  --shadow-2xl: 0 25px 50px -12px rgba(0,0,0,0.15);
  --shadow-primary: 0 10px 30px -5px rgba(26, 34, 127, 0.25);
  --shadow-accent: 0 10px 30px -5px rgba(14, 165, 233, 0.25);

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Container max-widths */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
  --container-2xl: 1400px;

  /* Z-index scale */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-background);
}

h1, h2, h3, h4, h5, h6 {
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--color-text);
}

h1 { font-size: var(--font-size-5xl); }
h2 { font-size: var(--font-size-4xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }

p {
  color: var(--color-text-secondary);
  line-height: 1.7;
}

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

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

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

.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;
}

.skip-nav {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  z-index: var(--z-tooltip);
  padding: var(--space-3) var(--space-6);
  background: var(--color-primary);
  color: white;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: var(--font-size-sm);
  transition: top var(--transition-fast);
}

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

/* --- Layout Utilities --- */
.container {
  width: 100%;
  max-width: var(--container-2xl);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

@media (min-width: 768px) {
  .container { padding: 0 var(--space-8); }
}

@media (min-width: 1024px) {
  .container { padding: 0 var(--space-12); }
}

.section {
  padding: var(--space-16) 0;
}

@media (min-width: 768px) {
  .section { padding: var(--space-24) 0; }
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
  font-weight: 700;
  line-height: 1.5;
  border-radius: var(--radius-xl);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
  text-decoration: none;
}

.btn:active {
  transform: scale(0.97);
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--font-size-base);
  border-radius: var(--radius-xl);
}

.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--font-size-xs);
}

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

.btn-primary:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 14px 35px -5px rgba(26, 34, 127, 0.3);
}

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

.btn-accent:hover {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
}

.btn-cta {
  background: var(--color-cta);
  color: white;
  box-shadow: 0 10px 30px -5px rgba(249, 115, 22, 0.3);
}

.btn-cta:hover {
  background: var(--color-cta-hover);
  transform: translateY(-1px);
}

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

.btn-white:hover {
  background: var(--color-background);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-secondary);
  box-shadow: none;
}

.btn-ghost:hover {
  background: var(--color-background-alt);
  color: var(--color-text);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-border);
}

.btn-outline:hover {
  border-color: var(--color-primary);
  background: var(--color-primary-5);
}

/* --- Cards --- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  overflow: hidden;
  transition: all var(--transition-base);
}

.card-elevated {
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.card-interactive:hover {
  box-shadow: var(--shadow-xl);
  transform: translateY(-4px);
  border-color: rgba(14, 165, 233, 0.2);
}

.card-body {
  padding: var(--space-6);
}

@media (min-width: 768px) {
  .card-body { padding: var(--space-8); }
}

/* --- Badges --- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  font-size: var(--font-size-xs);
  font-weight: 700;
  border-radius: var(--radius-full);
  line-height: 1.5;
}

.badge-primary {
  background: var(--color-primary-10);
  color: var(--color-primary);
}

.badge-accent {
  background: var(--color-accent-light);
  color: var(--color-accent);
}

.badge-success {
  background: var(--color-success-light);
  color: var(--color-success);
}

.badge-warning {
  background: var(--color-warning-light);
  color: var(--color-warning);
}

.badge-error {
  background: var(--color-error-light);
  color: var(--color-error);
}

/* --- Tags (skills, compétences) --- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  font-size: var(--font-size-xs);
  font-weight: 600;
  border-radius: var(--radius-lg);
  background: var(--color-background-alt);
  color: var(--color-text-secondary);
}

/* --- Form inputs --- */
.input {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  transition: all var(--transition-fast);
}

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

.input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-light);
}

.input-lg {
  padding: var(--space-4) var(--space-5);
  font-size: var(--font-size-base);
}

/* --- Material Icons config --- */
.material-symbols-outlined {
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
  vertical-align: middle;
}

.icon-filled {
  font-variation-settings: 'FILL' 1, 'wght' 400, 'GRAD' 0, 'opsz' 24;
}

/* --- Animations --- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(24px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes pulse-soft {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.animate-fade-in-up {
  animation: fadeInUp 0.6s ease-out both;
}

.animate-fade-in {
  animation: fadeIn 0.5s ease-out both;
}

.animate-slide-in-right {
  animation: slideInRight 0.5s ease-out both;
}

.delay-100 { animation-delay: 100ms; }
.delay-200 { animation-delay: 200ms; }
.delay-300 { animation-delay: 300ms; }
.delay-400 { animation-delay: 400ms; }
.delay-500 { animation-delay: 500ms; }

/* --- Utility Classes --- */
.text-gradient {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.bg-gradient-primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
}

.bg-gradient-hero {
  background: linear-gradient(135deg, #1a227f 0%, #2a35a5 50%, #1a227f 100%);
}

.glass {
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.divider {
  width: 64px;
  height: 4px;
  background: var(--color-accent);
  border-radius: var(--radius-full);
}

/* --- Responsive Breakpoints Reference ---
   sm:  640px
   md:  768px
   lg:  1024px
   xl:  1280px
   2xl: 1400px
   ---------------------------------------- */