.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: none;
  cursor: pointer;
  border-radius: var(--radius-md);
  font-family: var(--font-gotham);
  font-weight: 500;
  white-space: nowrap;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease,
    opacity 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
}

.btn:hover:not(:disabled) {
  transform: translateY(-2px);
}

.btn:active:not(:disabled) {
  transform: translateY(0);
}

.btn:disabled {
  cursor: not-allowed;
  background: var(--gris-clair);
  color: #aaaaaa;
}

.icone {
  display: inline-flex;
  flex-shrink: 0;
  width: 1.15em;
  height: 1.15em;
}

.icone svg {
  width: 100%;
  height: 100%;
}

/* Variantes */
.primaire {
  background: var(--vert-fonce);
  color: var(--blanc);
}
.primaire:hover:not(:disabled) {
  background: var(--vert-moyen);
  box-shadow: 0 8px 20px rgba(46, 204, 64, 0.35);
}

.secondaire {
  background: transparent;
  color: var(--vert-fonce);
  border: 1px solid var(--vert-fonce);
}
.secondaire:hover:not(:disabled) {
  background: var(--gris-clair);
}

.accent {
  background: var(--vert-moyen);
  color: var(--blanc);
}
.accent:hover:not(:disabled) {
  opacity: 0.9;
}

.destructif {
  background: var(--erreur);
  color: var(--blanc);
}
.destructif:hover:not(:disabled) {
  opacity: 0.9;
}

/* Tailles */
.sm {
  padding: 8px 16px;
  font-size: 14px;
}
.md {
  padding: 12px 24px;
  font-size: 16px;
}
.lg {
  padding: 16px 32px;
  font-size: 18px;
}