/* ==========================================================================
   Buttons — Dark theme with sage + gold
   ========================================================================== */

/* ---- Base Button ---- */
.btn {
  display: inline-block;
  padding: 14px 32px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  line-height: 1;
  text-align: center;
  text-decoration: none;
  border: 1.5px solid transparent;
  border-radius: 100px;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
  letter-spacing: 0.03em;
  position: relative;
  overflow: hidden;
}

/* Shimmer sweep — looping on primary/sage, hover-triggered on outline */
.btn::after {
  content: '';
  position: absolute;
  top: -20%;
  left: -80%;
  width: 55%;
  height: 140%;
  background: linear-gradient(
    105deg,
    transparent 20%,
    rgba(255, 255, 255, 0.2) 50%,
    transparent 80%
  );
  transform: skewX(-18deg) translateX(0);
  pointer-events: none;
  will-change: transform;
}

/* Loop shimmer for primary CTA buttons */
.btn--primary::after,
.btn--sage::after {
  animation: btnShimmer 9s ease-in-out infinite;
  animation-delay: 2s;
}

@keyframes btnShimmer {
  0%   { transform: skewX(-18deg) translateX(-200%); }
  100% { transform: skewX(-18deg) translateX(500%); }
}

/* Outline-Button: nur bei Hover */
.btn--outline::after {
  transform: skewX(-18deg) translateX(-200%);
  transition: transform 0.7s var(--ease-out);
}

.btn--outline:hover::after {
  transform: skewX(-18deg) translateX(300%);
}

/* ---- Primary: Gold ---- */
.btn--primary {
  background-color: var(--color-gold);
  color: var(--color-bg-deep);
  border-color: var(--color-gold);
}

.btn--primary:hover {
  background-color: var(--color-gold-light);
  border-color: var(--color-gold-light);
  color: var(--color-bg-deep);
  transform: translateY(-3px);
  box-shadow: 0 8px 28px var(--color-gold-glow),
              0 2px 8px rgba(var(--color-gold-rgb), 0.2),
              0 0 20px rgba(var(--color-gold-rgb), 0.1);
}

.btn--primary:active {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px var(--color-gold-glow);
}

/* ---- Outline: White border ---- */
.btn--outline {
  background-color: transparent;
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.35);
}

.btn--outline:hover {
  background-color: var(--color-white);
  color: var(--color-bg-deep);
  border-color: var(--color-white);
  transform: translateY(-3px);
  box-shadow: 0 8px 28px rgba(255, 255, 255, 0.12),
              0 2px 8px rgba(255, 255, 255, 0.06);
}

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

/* ---- Sage: Green button ---- */
.btn--sage {
  background-color: var(--color-sage);
  color: var(--color-white);
  border-color: var(--color-sage);
}

.btn--sage:hover {
  background-color: var(--color-sage-light);
  border-color: var(--color-sage-light);
  color: var(--color-bg-deep);
  transform: translateY(-3px);
  box-shadow: 0 8px 28px rgba(var(--color-sage-rgb), 0.35),
              0 2px 8px rgba(var(--color-sage-rgb), 0.2),
              0 0 20px rgba(var(--color-sage-rgb), 0.1);
}

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

/* ---- Large Variant ---- */
.btn--large {
  padding: 18px 48px;
  font-size: 0.95rem;
}

/* ---- Full Width ---- */
.btn--full {
  width: 100%;
}

/* ---- Focus Visible ---- */
.btn:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 3px;
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 480px) {
  .btn {
    padding: 12px 28px;
    font-size: 0.9rem;
  }

  .btn--large {
    padding: 16px 36px;
    font-size: 0.92rem;
  }
}