/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 56px;
  padding: 0 var(--space-10);
  border-radius: var(--radius-md);
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background: var(--burgundy-700);
  color: var(--white);
  border-color: var(--burgundy-700);
}
.btn-primary:hover {
  background: var(--burgundy-800);
  border-color: var(--burgundy-800);
  transform: scale(1.02);
}

.btn-primary-on-dark {
  background: var(--white);
  color: var(--burgundy-900);
  border-color: var(--white);
}
.btn-primary-on-dark:hover {
  background: var(--burgundy-50);
  border-color: var(--burgundy-50);
  transform: scale(1.02);
}

.btn-secondary-on-dark {
  background: var(--burgundy-900);
  color: var(--white);
  border-color: var(--white);
}
.btn-secondary-on-dark:hover {
  border-color: var(--white);
  background: var(--burgundy-800);
  transform: scale(1.02);
}

.btn-ghost {
  background: none;
  border: none;
  color: var(--burgundy-700);
  font-weight: 800;
  font-size: 1.25rem;
  padding: 0;
  height: auto;
  position: relative;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}
.btn-ghost::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--burgundy-700);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-fast);
}
.btn-ghost:hover::after { transform: scaleX(1); }

/* Small button + alert-band buttons — used by the event banner/page (Auckland public meeting) */
.btn-sm {
  height: 40px;
  min-height: 40px;
  padding: 0 var(--space-4);
  border-radius: var(--radius-sm);
  font-size: 0.84rem;
  line-height: 1;
}

.btn-alert {
  background: var(--green-pine);
  border-color: var(--green-pine);
  color: var(--white);
  box-shadow: 4px 4px 0 rgba(255, 247, 232, 0.24);
}
.btn-alert:hover {
  background: var(--green-pine-900);
  border-color: var(--green-pine-900);
  color: var(--white);
  transform: translate(-1px, -1px);
  box-shadow: 6px 6px 0 rgba(255, 247, 232, 0.28);
}

.btn-alert-secondary {
  background: transparent;
  border-color: rgba(255, 247, 232, 0.74);
  color: #fff7e8;
  box-shadow: none;
}
.btn-alert-secondary:hover {
  background: rgba(255, 247, 232, 0.14);
  border-color: #fff7e8;
  color: #fff7e8;
}

/* Mobile nav toggle */
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 44px;
  height: 44px;
  position: relative;
}
.mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  position: absolute;
  left: 10px;
  transition: all var(--transition-fast);
}
.header-scrolled .mobile-toggle span { background: var(--neutral-900); }
.mobile-toggle span:nth-child(1) { top: 14px; }
.mobile-toggle span:nth-child(2) { top: 21px; }
.mobile-toggle span:nth-child(3) { top: 28px; }
.mobile-toggle.active span:nth-child(1) { top: 21px; transform: rotate(45deg); }
.mobile-toggle.active span:nth-child(2) { opacity: 0; }
.mobile-toggle.active span:nth-child(3) { top: 21px; transform: rotate(-45deg); }