/* ═══════════════════════════════════════════════════════
   ASCENDA — Components
   ═══════════════════════════════════════════════════════ */

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.75rem 1.75rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border-radius: var(--radius-sm);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
  transition: left var(--transition-slow);
}

.btn:hover::before {
  left: 100%;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: var(--bg-primary);
  border: 1px solid var(--accent);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--accent-light), var(--accent));
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--glass-border);
}

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-glow);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: none;
  padding: 0.5rem 1rem;
}

.btn-ghost:hover {
  color: var(--text-primary);
  background: var(--glass-bg);
}

.btn-danger {
  background: transparent;
  color: var(--error);
  border: 1px solid rgba(248, 113, 113, 0.2);
}

.btn-danger:hover {
  background: rgba(248, 113, 113, 0.1);
  border-color: var(--error);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.75rem;
}

.btn-lg {
  padding: 1rem 2.5rem;
  font-size: 1rem;
}

.btn-full {
  width: 100%;
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none !important;
}

/* ── Product Card ── */
.product-card {
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-slow);
  position: relative;
  cursor: pointer;
}

.product-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  border: 1px solid transparent;
  transition: border-color var(--transition-base);
  pointer-events: none;
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg), 0 0 40px var(--accent-glow);
  border-color: var(--glass-border-hover);
}

.product-card:hover::after {
  border-color: var(--accent-dark);
}

.product-card__image {
  position: relative;
  aspect-ratio: 3/4;
  overflow: hidden;
  background: var(--bg-tertiary);
}

.product-card__image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform var(--transition-slow);
}

.product-card:hover .product-card__image img {
  transform: scale(1.08);
}

.product-card__badge {
  position: absolute;
  top: var(--space-md);
  left: var(--space-md);
  padding: 0.3rem 0.75rem;
  background: var(--accent);
  color: var(--bg-primary);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  border-radius: var(--radius-full);
}

.product-card__info {
  padding: var(--space-lg);
}

.product-card__category {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  margin-bottom: var(--space-xs);
}

.product-card__name {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
  line-height: 1.3;
}

.product-card__price {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--accent-light);
}

.product-card__price .currency {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-right: 2px;
}

/* ── Glass Card ── */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: all var(--transition-base);
}

.glass-card:hover {
  border-color: var(--glass-border-hover);
  background: var(--glass-bg-hover);
}

/* ── Form Elements ── */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-sm);
}

.form-input {
  width: 100%;
  padding: 0.85rem 1rem;
  background: var(--bg-input);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.95rem;
  transition: all var(--transition-base);
  outline: none;
}

.form-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow), 0 0 20px var(--accent-glow);
}

.form-input::placeholder {
  color: var(--text-tertiary);
}

.form-input:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.form-select {
  width: 100%;
  padding: 0.85rem 1rem;
  background: var(--bg-input);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.95rem;
  transition: all var(--transition-base);
  outline: none;
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%238a8a8a' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
}

.form-select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

/* ── Toast Notifications ── */
.toast-container {
  position: fixed;
  top: var(--space-xl);
  right: var(--space-xl);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.toast {
  background: var(--bg-elevated);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: var(--space-md) var(--space-lg);
  min-width: 300px;
  max-width: 420px;
  display: flex;
  align-items: center;
  gap: var(--space-md);
  box-shadow: var(--shadow-lg);
  animation: toast-in 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  font-size: 0.9rem;
}

.toast.toast-exit {
  animation: toast-out 0.3s ease-in forwards;
}

.toast-success { border-left: 3px solid var(--success); }
.toast-error { border-left: 3px solid var(--error); }
.toast-warning { border-left: 3px solid var(--warning); }
.toast-info { border-left: 3px solid var(--info); }

.toast-icon {
  font-size: 1.2rem;
  flex-shrink: 0;
}

.toast-close {
  margin-left: auto;
  color: var(--text-tertiary);
  cursor: pointer;
  font-size: 1.1rem;
  transition: color var(--transition-fast);
}

.toast-close:hover {
  color: var(--text-primary);
}

@keyframes toast-in {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

@keyframes toast-out {
  from { transform: translateX(0); opacity: 1; }
  to { transform: translateX(100%); opacity: 0; }
}

/* ── Modal ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
  animation: fadeIn var(--transition-base);
}

.modal-overlay.hidden { display: none; }

.modal {
  background: var(--bg-elevated);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 560px;
  max-height: 85vh;
  overflow-y: auto;
  animation: modal-in var(--transition-spring);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg) var(--space-xl);
  border-bottom: 1px solid var(--glass-border);
}

.modal-header h3 {
  font-size: 1.1rem;
}

.modal-close {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  font-size: 1.2rem;
}

.modal-close:hover {
  background: var(--glass-bg);
  color: var(--text-primary);
}

.modal-body {
  padding: var(--space-xl);
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-md);
  padding: var(--space-lg) var(--space-xl);
  border-top: 1px solid var(--glass-border);
}

@keyframes modal-in {
  from { transform: scale(0.9) translateY(20px); opacity: 0; }
  to { transform: scale(1) translateY(0); opacity: 1; }
}

/* ── Badge ── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.6rem;
  font-size: 0.7rem;
  font-weight: 600;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.badge-accent {
  background: var(--accent-glow);
  color: var(--accent);
  border: 1px solid var(--accent-dark);
}

.badge-success {
  background: rgba(74, 222, 128, 0.1);
  color: var(--success);
  border: 1px solid rgba(74, 222, 128, 0.2);
}

.badge-warning {
  background: rgba(251, 191, 36, 0.1);
  color: var(--warning);
  border: 1px solid rgba(251, 191, 36, 0.2);
}

.badge-error {
  background: rgba(248, 113, 113, 0.1);
  color: var(--error);
  border: 1px solid rgba(248, 113, 113, 0.2);
}

.badge-info {
  background: rgba(96, 165, 250, 0.1);
  color: var(--info);
  border: 1px solid rgba(96, 165, 250, 0.2);
}

.badge-neutral {
  background: var(--glass-bg);
  color: var(--text-secondary);
  border: 1px solid var(--glass-border);
}

/* ── Stat Card ── */
.stat-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: all var(--transition-base);
}

.stat-card:hover {
  border-color: var(--glass-border-hover);
  background: var(--glass-bg-hover);
}

.stat-card__label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: var(--space-sm);
}

.stat-card__value {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1;
}

.stat-card__value.accent {
  color: var(--accent);
}

/* ── Size Selector ── */
.size-selector {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.size-option {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.size-option:hover {
  border-color: var(--accent-dark);
  color: var(--text-primary);
}

.size-option.active {
  border-color: var(--accent);
  background: var(--accent-glow);
  color: var(--accent);
}

/* ── Quantity Selector ── */
.qty-selector {
  display: flex;
  align-items: center;
  gap: 0;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.qty-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-input);
  color: var(--text-secondary);
  font-size: 1.1rem;
  transition: all var(--transition-fast);
  border: none;
  cursor: pointer;
}

.qty-btn:hover {
  background: var(--glass-bg-hover);
  color: var(--text-primary);
}

.qty-value {
  width: 48px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-primary);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  border-left: 1px solid var(--glass-border);
  border-right: 1px solid var(--glass-border);
}

/* ── Empty State ── */
.empty-state {
  text-align: center;
  padding: var(--space-4xl) var(--space-xl);
}

.empty-state__icon {
  font-size: 4rem;
  margin-bottom: var(--space-lg);
  opacity: 0.3;
}

.empty-state__title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  margin-bottom: var(--space-sm);
  color: var(--text-secondary);
}

.empty-state__text {
  color: var(--text-tertiary);
  margin-bottom: var(--space-xl);
  font-size: 0.9rem;
}

/* ── Divider ── */
.divider {
  height: 1px;
  background: var(--glass-border);
  margin: var(--space-xl) 0;
}

/* ── Tag ── */
.tag {
  display: inline-block;
  padding: 0.4rem 0.8rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tag:hover, .tag.active {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-glow);
}