/*
 * Buttons — utilitaires globaux
 */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-ui);
  font-size: var(--text-ui);
  font-weight: 600;
  line-height: 1;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  border: 2px solid transparent;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease,
              transform 0.2s ease, box-shadow 0.2s ease;
  white-space: nowrap;
}

.btn:focus-visible {
  outline: 3px solid var(--color-sky);
  outline-offset: 3px;
}

/* Primaire — teal plein */
.btn--primary {
  background: var(--color-teal);
  color: #fff;
  border-color: var(--color-teal);
}
.btn--primary:hover {
  background: var(--color-teal-dark);
  border-color: var(--color-teal-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(36,127,134,0.3);
}

/* Secondaire — contour teal */
.btn--secondary {
  background: transparent;
  color: var(--color-teal);
  border-color: var(--color-teal);
}
.btn--secondary:hover {
  background: var(--color-teal);
  color: #fff;
}

/* Sur fond sombre — blanc plein */
.btn--white {
  background: var(--color-white-off);
  color: var(--color-teal);
  border-color: var(--color-white-off);
}
.btn--white:hover {
  background: #fff;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.15);
}

/* Sur fond sombre — contour blanc */
.btn--outline-white {
  background: transparent;
  color: var(--color-white-off);
  border-color: rgba(255,255,255,0.6);
}
.btn--outline-white:hover {
  background: rgba(255,255,255,0.12);
  border-color: var(--color-white-off);
}


/* Taille large */
.btn--lg {
  font-size: var(--text-base);
  padding: var(--space-4) var(--space-8);
}