/* ==========================================================================
   BUTTONS COMPONENT
   ========================================================================== */
.btn {
  --btn-py: 0.9rem;
  --btn-px: 2rem;
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--btn-py) var(--btn-px);
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  background-color: transparent;
  font-family: var(--font-display);
  font-size: var(--fs-small);
  font-weight: 500;
  line-height: 1;
  letter-spacing: var(--ls-btn);
  text-transform: uppercase;
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  overflow: hidden;
  appearance: none;
  -webkit-appearance: none;
  transition: color var(--t-fast), background-color var(--t-fast),
              border-color var(--t-fast), transform var(--t-fast),
              box-shadow var(--t-fast);
}
.btn:active { transform: translateY(1px); }

.btn--sm  { --btn-py: 0.7rem; --btn-px: 1.4rem; font-size: 0.78rem; }
.btn--lg  { --btn-py: 1.1rem; --btn-px: 2.6rem; }
.btn--block { display: flex; width: 100%; }

/* Primary — brushed-gold "metal" treatment */
.btn--metal {
  color: var(--color-navy);
  background-color: var(--color-gold);
  background-image: linear-gradient(100deg,
      var(--color-gold-deep) 0%,
      var(--color-gold) 22%,
      var(--color-gold-light) 42%,
      var(--color-gold) 62%,
      var(--color-gold-deep) 100%);
  background-size: 260% 100%;
  background-position: 78% 50%;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.32) inset,
              0 -1px 0 rgba(0, 0, 0, 0.22) inset,
              0 10px 26px -14px rgba(0, 0, 0, 0.9);
  transition: background-position 900ms var(--ease), box-shadow var(--t-fast),
              transform var(--t-fast);
}
.btn--metal:hover,
.btn--metal:focus-visible {
  background-position: 12% 50%;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.45) inset,
              0 -1px 0 rgba(0, 0, 0, 0.25) inset,
              0 14px 30px -14px rgba(0, 0, 0, 0.95);
}
.btn--metal:active {
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.35) inset;
}

/* Click ripple (JS-injected) */
.btn__ripple {
  position: absolute;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.5) 0%, rgba(255, 255, 255, 0) 70%);
  transform: translate(-50%, -50%) scale(0);
  pointer-events: none;
  animation: ripple 600ms var(--ease) forwards;
}
@keyframes ripple {
  to { transform: translate(-50%, -50%) scale(5); opacity: 0; }
}

.btn--outline {
  color: var(--color-cream);
  background-color: transparent;
  border-color: rgba(242, 236, 227, 0.3);
}
.btn--outline:hover,
.btn--outline:focus-visible {
  color: var(--color-navy);
  background: var(--color-cream);
  border-color: var(--color-cream);
}

.btn--ghost {
  color: var(--color-white);
  background-color: transparent;
  border-color: rgba(255, 255, 255, 0.45);
  backdrop-filter: blur(6px);
}
.btn--ghost:hover,
.btn--ghost:focus-visible {
  color: var(--color-navy);
  background: rgba(255, 255, 255, 0.94);
  border-color: transparent;
}

.btn__icon-360 {
  display: inline-block;
  font-size: 0.72em;
  letter-spacing: 0.04em;
  padding: 0.12em 0.4em;
  margin-right: 0.5rem;
  border: 1px solid currentColor;
  border-radius: 3px;
  line-height: 1;
  vertical-align: middle;
  opacity: 0.85;
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-top: var(--space-lg);
}
.btn-row--center { justify-content: center; }