/**
 * Design System SOMEF - Composants & Utilities
 * Style Tailwind-inspired avec micro-formisme et micro-interactions
 */

/* === Variables du Design System === */
:root {
  /* Espacements (8px grid system) */
  --spacing-0: 0;
  --spacing-1: 0.25rem;  /* 4px */
  --spacing-2: 0.5rem;   /* 8px */
  --spacing-3: 0.75rem;  /* 12px */
  --spacing-4: 1rem;     /* 16px */
  --spacing-5: 1.25rem;  /* 20px */
  --spacing-6: 1.5rem;   /* 24px */
  --spacing-8: 2rem;     /* 32px */
  --spacing-10: 2.5rem;  /* 40px */
  --spacing-12: 3rem;    /* 48px */
  --spacing-16: 4rem;     /* 64px */
  --spacing-20: 5rem;     /* 80px */
  --spacing-24: 6rem;    /* 96px */

  /* Élévations (Micro-formisme) */
  --elevation-0: none;
  --elevation-1: 0 1px 2px rgba(0, 0, 0, 0.04);
  --elevation-2: 0 2px 4px rgba(0, 0, 0, 0.06);
  --elevation-3: 0 4px 8px rgba(0, 0, 0, 0.08);
  --elevation-4: 0 8px 16px rgba(0, 0, 0, 0.1);
  --elevation-5: 0 16px 32px rgba(0, 0, 0, 0.12);

  /* Transitions */
  --transition-fast: 0.15s ease-out;
  --transition-base: 0.2s ease-out;
  --transition-slow: 0.3s ease-out;
  --transition-slower: 0.5s ease-out;

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;
}

/* === Container System === */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-4);
}

@media (min-width: 640px) {
  .container {
    padding: 0 var(--spacing-6);
  }
}

@media (min-width: 1024px) {
  .container {
    padding: 0 var(--spacing-8);
  }
}

/* === Grid System === */
.grid {
  display: grid;
  gap: var(--spacing-4);
}

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

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

/* === Flexbox Utilities === */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-2 { gap: var(--spacing-2); }
.gap-4 { gap: var(--spacing-4); }
.gap-6 { gap: var(--spacing-6); }
.gap-8 { gap: var(--spacing-8); }

/* === Badges & Tags === */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--spacing-1) var(--spacing-3);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm, 0.875rem);
  font-weight: var(--font-weight-medium, 500);
  line-height: 1;
  transition: all var(--transition-base);
}

.badge-primary {
  background: rgba(210, 39, 65, 0.1);
  color: var(--somef-primary, #d22741);
}

.badge-success {
  background: rgba(16, 185, 129, 0.1);
  color: #059669;
}

.badge-warning {
  background: rgba(245, 158, 11, 0.1);
  color: #d97706;
}

.badge-error {
  background: rgba(239, 68, 68, 0.1);
  color: #dc2626;
}

.badge-secondary {
  background: rgba(43, 60, 69, 0.1);
  color: var(--somef-secondary, #2b3c45);
}

/* === Progress Bars === */
.progress {
  width: 100%;
  height: 8px;
  background: var(--color-gray-200, #e5e7eb);
  border-radius: var(--radius-full);
  overflow: hidden;
  position: relative;
}

.progress-bar {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.progress-bar::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.3),
    transparent
  );
  animation: shimmer 2s infinite;
}

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

/* === Cards avec Micro-formisme === */
.card {
  background: var(--color-surface, #ffffff);
  border: 1px solid var(--color-border, #e2e8f0);
  border-radius: var(--radius-md);
  padding: var(--spacing-6);
  box-shadow: var(--elevation-2);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--elevation-4);
  border-color: var(--somef-primary, #d22741);
}

.card:hover::before {
  transform: scaleX(1);
}

.card-elevated {
  box-shadow: var(--elevation-3);
}

.card-elevated:hover {
  box-shadow: var(--elevation-5);
}

/* === Image Components === */
.image-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  aspect-ratio: 16 / 9;
  background: var(--color-gray-100, #f3f4f6);
}

.image-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.image-card:hover img {
  transform: scale(1.08);
}

.image-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    transparent 0%,
    transparent 60%,
    rgba(0, 0, 0, 0.7) 100%
  );
  opacity: 0;
  transition: opacity var(--transition-base);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--spacing-6);
  color: white;
}

.image-card:hover .image-card-overlay {
  opacity: 1;
}

.image-card-title {
  font-size: var(--font-size-xl, 1.25rem);
  font-weight: var(--font-weight-bold, 700);
  margin-bottom: var(--spacing-2);
}

.image-card-description {
  font-size: var(--font-size-sm, 0.875rem);
  opacity: 0.9;
}

/* === Project Gallery === */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--spacing-6);
  margin: var(--spacing-8) 0;
}

.project-card {
  background: var(--color-surface, #ffffff);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--elevation-2);
  transition: all var(--transition-base);
  border: 1px solid var(--color-border, #e2e8f0);
}

.project-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--elevation-4);
}

.project-card-image {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  transition: transform 0.5s;
}

.project-card:hover .project-card-image {
  transform: scale(1.05);
}

.project-card-content {
  padding: var(--spacing-5);
}

.project-card-title {
  font-size: var(--font-size-lg, 1.125rem);
  font-weight: var(--font-weight-bold, 700);
  color: var(--color-text, #1a1a1a);
  margin-bottom: var(--spacing-2);
}

.project-card-description {
  font-size: var(--font-size-sm, 0.875rem);
  color: var(--color-text-secondary, #64748b);
  margin-bottom: var(--spacing-4);
  line-height: 1.6;
}

.project-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-2);
  margin-top: var(--spacing-4);
}

/* === Stats Cards === */
.stats-card {
  background: var(--color-surface, #ffffff);
  border-radius: var(--radius-md);
  padding: var(--spacing-6);
  box-shadow: var(--elevation-2);
  border: 1px solid var(--color-border, #e2e8f0);
  transition: all var(--transition-base);
}

.stats-card:hover {
  box-shadow: var(--elevation-3);
  transform: translateY(-2px);
}

.stats-value {
  font-size: var(--font-size-4xl, 2.25rem);
  font-weight: var(--font-weight-extrabold, 800);
  color: var(--somef-primary, #d22741);
  line-height: 1.2;
  margin-bottom: var(--spacing-2);
}

.stats-label {
  font-size: var(--font-size-sm, 0.875rem);
  color: var(--color-text-secondary, #64748b);
  font-weight: var(--font-weight-medium, 500);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stats-trend {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-1);
  font-size: var(--font-size-xs, 0.75rem);
  font-weight: var(--font-weight-semibold, 600);
  margin-top: var(--spacing-2);
  padding: var(--spacing-1) var(--spacing-2);
  border-radius: var(--radius-sm);
}

.stats-trend.positive {
  background: rgba(16, 185, 129, 0.1);
  color: #059669;
}

.stats-trend.negative {
  background: rgba(239, 68, 68, 0.1);
  color: #dc2626;
}

/* === Action Cards === */
.action-card {
  background: var(--color-surface, #ffffff);
  border-left: 4px solid;
  border-radius: var(--radius-md);
  padding: var(--spacing-5);
  box-shadow: var(--elevation-2);
  transition: all var(--transition-base);
  margin-bottom: var(--spacing-4);
}

.action-card[data-status="completed"] {
  border-left-color: var(--color-success, #10b981);
  opacity: 0.85;
}

.action-card[data-status="in-progress"] {
  border-left-color: var(--somef-primary, #d22741);
}

.action-card[data-status="pending"] {
  border-left-color: var(--color-border, #e2e8f0);
}

.action-card:hover {
  box-shadow: var(--elevation-3);
  transform: translateX(4px);
}

.action-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: var(--spacing-3);
}

.action-title {
  font-size: var(--font-size-lg, 1.125rem);
  font-weight: var(--font-weight-semibold, 600);
  color: var(--color-text, #1a1a1a);
  margin: 0;
}

.action-status {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-1);
  padding: var(--spacing-1) var(--spacing-3);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs, 0.75rem);
  font-weight: var(--font-weight-medium, 500);
}

.action-description {
  font-size: var(--font-size-sm, 0.875rem);
  color: var(--color-text-secondary, #64748b);
  line-height: 1.6;
  margin-bottom: var(--spacing-4);
}

.action-meta {
  display: flex;
  align-items: center;
  gap: var(--spacing-4);
  font-size: var(--font-size-xs, 0.75rem);
  color: var(--color-text-secondary, #64748b);
}

.action-progress {
  margin-top: var(--spacing-3);
}

/* === Feature Cards === */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--spacing-6);
  margin: var(--spacing-8) 0;
}

.feature-card {
  background: var(--color-surface, #ffffff);
  border: 1px solid var(--color-border, #e2e8f0);
  border-radius: var(--radius-md);
  padding: var(--spacing-6);
  position: relative;
  overflow: hidden;
  transition: all var(--transition-base);
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: var(--gradient-primary);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--transition-base);
}

.feature-card:hover {
  box-shadow: var(--elevation-3);
  border-color: var(--somef-primary, #d22741);
}

.feature-card:hover::before {
  transform: scaleY(1);
}

.feature-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(210, 39, 65, 0.1);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-4);
  color: var(--somef-primary, #d22741);
}

.feature-title {
  font-size: var(--font-size-lg, 1.125rem);
  font-weight: var(--font-weight-bold, 700);
  color: var(--color-text, #1a1a1a);
  margin-bottom: var(--spacing-2);
}

.feature-description {
  font-size: var(--font-size-sm, 0.875rem);
  color: var(--color-text-secondary, #64748b);
  line-height: 1.6;
}

/* === Tooltips === */
.tooltip-wrapper {
  position: relative;
  display: inline-block;
}

.tooltip {
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  margin-bottom: var(--spacing-2);
  padding: var(--spacing-2) var(--spacing-3);
  background: var(--color-gray-900, #111827);
  color: white;
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs, 0.75rem);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
  z-index: 1000;
}

.tooltip::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 4px solid transparent;
  border-top-color: var(--color-gray-900, #111827);
}

.tooltip-wrapper:hover .tooltip {
  opacity: 1;
}

/* === Skeleton Loading === */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-gray-200, #e5e7eb) 0%,
    var(--color-gray-100, #f3f4f6) 50%,
    var(--color-gray-200, #e5e7eb) 100%
  );
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s ease-in-out infinite;
  border-radius: var(--radius-sm);
}

@keyframes skeleton-loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.skeleton-text {
  height: 1em;
  margin-bottom: var(--spacing-2);
}

.skeleton-title {
  height: 1.5em;
  width: 60%;
  margin-bottom: var(--spacing-4);
}

/* === Stagger Animation === */
.stagger-item {
  opacity: 0;
  animation: fadeInUp 0.4s ease-out forwards;
}

.stagger-item:nth-child(1) { animation-delay: 0.05s; }
.stagger-item:nth-child(2) { animation-delay: 0.1s; }
.stagger-item:nth-child(3) { animation-delay: 0.15s; }
.stagger-item:nth-child(4) { animation-delay: 0.2s; }
.stagger-item:nth-child(5) { animation-delay: 0.25s; }
.stagger-item:nth-child(6) { animation-delay: 0.3s; }

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* === Focus States (Accessibilité) === */
.focus-visible {
  outline: 2px solid var(--somef-primary, #d22741);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* === Responsive Utilities === */
@media (max-width: 768px) {
  .container {
    padding: 0 var(--spacing-4);
  }
  
  .project-grid,
  .feature-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-4);
  }
}