/* ============================================
   Aether Studio — Component: Button
   BEM: .btn, .btn--primary, .btn--secondary, etc.
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-body);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: var(--text-sm);
  border: none;
  cursor: pointer;
  transition: all var(--duration-fast) ease;
  border-radius: var(--radius-lg);
  padding: 0.75rem 1.5rem;
  min-height: 44px;
  text-decoration: none;
  white-space: nowrap;
}

.btn:disabled {
  opacity: 0.65;
  cursor: not-allowed;
  transform: none !important;
}

.btn:active:not(:disabled) {
  transform: scale(0.96);
}

/* === Primary (Filled Accent) === */
.btn--primary {
  background: var(--accent);
  color: var(--accent-text);
}

.btn--primary:hover:not(:disabled) {
  background: var(--accent-hover);
  box-shadow: 0 14px 32px var(--accent-glow);
  transform: translateY(-2px);
}

/* === Secondary (Outlined Accent) === */
.btn--secondary {
  background: transparent;
  border: 2px solid var(--accent);
  color: var(--accent);
}

.btn--secondary:hover:not(:disabled) {
  background: var(--accent);
  color: white;
}

/* === Ghost (Subtle) === */
.btn--ghost {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-main);
}

.btn--ghost:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.1);
}

/* === Danger === */
.btn--danger {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.2);
  color: #ef4444;
}

.btn--danger:hover:not(:disabled) {
  background: #ef4444;
  color: white;
}

/* === Danger Strong === */
.btn--danger-strong {
  background: #dc2626;
  color: white;
}

.btn--danger-strong:hover:not(:disabled) {
  background: #ef4444;
  transform: scale(1.02);
}

/* === Success === */
.btn--success {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.2);
  color: #34d399;
}

.btn--success:hover:not(:disabled) {
  background: #10b981;
  color: white;
}

/* === Info (Blue) === */
.btn--info {
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.2);
  color: #93c5fd;
}

.btn--info:hover:not(:disabled) {
  background: #3b82f6;
  color: white;
}

/* === Publish (Violet) === */
.btn--publish {
  background: rgba(124, 58, 237, 0.2);
  border: 1px solid rgba(124, 58, 237, 0.3);
  color: #a78bfa;
}

.btn--publish:hover:not(:disabled) {
  background: rgba(124, 58, 237, 0.4);
}

.btn--publish.is-active {
  background: rgba(124, 58, 237, 0.4);
  color: white;
}

/* === Link-style Button === */
.btn--link {
  background: none;
  border: none;
  padding: 0.25rem 0.5rem;
  font-size: var(--text-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  min-height: auto;
  border-radius: var(--radius-sm);
}

.btn--link:hover:not(:disabled) {
  opacity: 0.7;
}

/* === Size Variants === */
.btn--sm {
  padding: 0.5rem 1rem;
  font-size: var(--text-xs);
  min-height: 36px;
  border-radius: var(--radius-md);
}

.btn--lg {
  padding: 1rem 2rem;
  font-size: var(--text-md);
  min-height: 52px;
}

.btn--icon {
  padding: 0.5rem;
  min-height: auto;
  border-radius: var(--radius-md);
}

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

/* === Button with Loading State === */
.btn .btn__loader {
  display: none;
}

.btn.is-loading .btn__text {
  visibility: hidden;
}

.btn.is-loading .btn__loader {
  display: block;
  position: absolute;
}