/* ==============================================
   DESIGN SYSTEM - COMPOSANTS GLOBAUX
   Système de design moderne et cohérent
   ============================================== */

/* ==============================================
   BOUTONS
   ============================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 1rem 2rem;
  font-weight: 600;
  font-size: 1rem;
  border: none;
  border-radius: var(--btn-radius);
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
  user-select: none;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.2) 0%, transparent 100%);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.btn:hover::before {
  opacity: 1;
}

/* Bouton primaire */
.btn-primary {
  background: var(--btn-primary-bg);
  color: #fff;
  box-shadow: var(--btn-primary-shadow), 0 0 0 1px rgba(255, 255, 255, 0.1) inset;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: var(--btn-primary-hover-shadow), 0 0 0 1px rgba(255, 255, 255, 0.15) inset;
}

.btn-primary:active {
  transform: translateY(-1px);
}

/* Bouton secondaire */
.btn-secondary {
  background: var(--btn-secondary-bg);
  border: 2px solid var(--btn-secondary-border);
  color: var(--accent);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: rgba(0, 153, 255, 0.2);
  border-color: var(--accent);
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0, 153, 255, 0.25);
}

/* Bouton ghost */
.btn-ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--fg);
  backdrop-filter: blur(10px);
}

.btn-ghost:hover {
  background: var(--pill-bg-hover);
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

/* Tailles */
.btn-sm {
  padding: 0.625rem 1.25rem;
  font-size: 0.875rem;
  border-radius: var(--btn-radius-sm);
}

.btn-lg {
  padding: 1.25rem 2.5rem;
  font-size: 1.125rem;
  border-radius: var(--btn-radius-lg);
}

/* Bouton icon seul */
.btn-icon {
  width: 44px;
  height: 44px;
  padding: 0;
  border-radius: var(--btn-radius-sm);
}

/* ==============================================
   CARDS
   ============================================== */

.card {
  background: var(--card);
  border: 2px solid var(--card-border-color);
  border-radius: var(--card-radius);
  padding: var(--card-padding);
  box-shadow: var(--card-shadow);
  transition: all var(--transition-slow);
}

.card:hover {
  transform: translateY(-8px);
  border-color: var(--accent);
  box-shadow: var(--card-shadow-hover), 0 0 0 1px rgba(0, 153, 255, 0.2);
}

.card-lg {
  border-radius: var(--card-radius-lg);
  padding: var(--card-padding-lg);
}

.card-glass {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
}

/* ==============================================
   INPUTS & FORMS
   ============================================== */

.input,
input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="url"],
textarea,
select {
  width: 100%;
  padding: 1rem 1.25rem;
  background: var(--input-bg);
  border: 2px solid var(--input-border);
  border-radius: var(--input-radius);
  color: var(--fg);
  font-size: 1rem;
  font-family: inherit;
  transition: all var(--transition-base);
  backdrop-filter: blur(10px);
}

.input:focus,
input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--input-border-focus);
  box-shadow: 0 0 0 4px rgba(0, 153, 255, 0.1), 0 4px 16px rgba(0, 153, 255, 0.15);
  transform: translateY(-2px);
}

.input::placeholder,
input::placeholder,
textarea::placeholder {
  color: var(--muted);
  opacity: 0.6;
}

/* ==============================================
   BADGES
   ============================================== */

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: rgba(0, 153, 255, 0.1);
  border: 1px solid rgba(0, 153, 255, 0.3);
  border-radius: 100px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent);
  white-space: nowrap;
}

.badge-success {
  background: rgba(34, 197, 94, 0.1);
  border-color: rgba(34, 197, 94, 0.3);
  color: #22c55e;
}

.badge-warning {
  background: rgba(245, 158, 11, 0.1);
  border-color: rgba(245, 158, 11, 0.3);
  color: #f59e0b;
}

.badge-error {
  background: rgba(239, 68, 68, 0.1);
  border-color: rgba(239, 68, 68, 0.3);
  color: #ef4444;
}

/* ==============================================
   NAVIGATION & MENUS
   ============================================== */

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.75rem 1.25rem;
  border-radius: var(--btn-radius-sm);
  color: var(--fg);
  text-decoration: none;
  font-weight: 500;
  transition: all var(--transition-base);
  position: relative;
}

.nav-link::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 0;
  background: var(--accent-gradient);
  border-radius: 0 3px 3px 0;
  transition: height var(--transition-base);
}

.nav-link:hover {
  background: rgba(0, 153, 255, 0.1);
  color: var(--accent);
}

.nav-link:hover::before,
.nav-link.active::before {
  height: 70%;
}

.nav-link.active {
  background: rgba(0, 153, 255, 0.15);
  color: var(--accent);
  font-weight: 600;
}

/* ==============================================
   ALERTS & NOTIFICATIONS
   ============================================== */

.alert {
  padding: 1.25rem 1.5rem;
  border-radius: var(--btn-radius);
  border: 2px solid;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  backdrop-filter: blur(10px);
}

.alert-info {
  background: rgba(0, 153, 255, 0.1);
  border-color: rgba(0, 153, 255, 0.3);
  color: var(--fg);
}

.alert-success {
  background: rgba(34, 197, 94, 0.1);
  border-color: rgba(34, 197, 94, 0.3);
  color: var(--fg);
}

.alert-warning {
  background: rgba(245, 158, 11, 0.1);
  border-color: rgba(245, 158, 11, 0.3);
  color: var(--fg);
}

.alert-error {
  background: rgba(239, 68, 68, 0.1);
  border-color: rgba(239, 68, 68, 0.3);
  color: var(--fg);
}

/* ==============================================
   TOOLTIPS
   ============================================== */

.tooltip {
  position: relative;
  display: inline-block;
}

.tooltip-text {
  visibility: hidden;
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  padding: 0.625rem 1rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--btn-radius-sm);
  color: var(--fg);
  font-size: 0.875rem;
  white-space: nowrap;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  transition: all var(--transition-base);
  z-index: 1000;
  pointer-events: none;
}

.tooltip:hover .tooltip-text {
  visibility: visible;
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ==============================================
   ANIMATIONS UTILITAIRES
   ============================================== */

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

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-20px); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.animate-fadeIn { animation: fadeIn 0.6s ease-out; }
.animate-fadeInUp { animation: fadeInUp 0.8s ease-out; }
.animate-slideIn { animation: slideIn 0.6s ease-out; }
.animate-float { animation: float 3s ease-in-out infinite; }
.animate-pulse { animation: pulse 2s ease-in-out infinite; }

/* ==============================================
   UTILITAIRES
   ============================================== */

.text-gradient {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.glow {
  box-shadow: var(--shadow-glow);
}

.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
}