/* ============================================================
   COMPONENTS — Buttons, Cards, Badges, Form Elements
   ============================================================ */

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.75rem 1.5rem;
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 600;
  line-height: 1;
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
  white-space: nowrap;
  user-select: none;
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0);
  transition: background var(--transition-fast);
}

.btn:hover::after {
  background: rgba(255,255,255,0.10);
}

.btn:active {
  transform: scale(0.97);
}

.btn-primary {
  background: var(--gradient-primary);
  color: #fff;
  box-shadow: var(--shadow-glow-sm);
}

.btn-primary:hover {
  box-shadow: var(--shadow-glow);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border: 2px solid var(--color-border);
}

.btn-secondary:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-1px);
}

.btn-dark {
  background: var(--color-secondary);
  color: #fff;
}

.btn-ghost {
  background: rgba(255,255,255,0.1);
  color: #fff;
  border: 2px solid rgba(255,255,255,0.3);
  backdrop-filter: blur(8px);
}

.btn-ghost:hover {
  background: rgba(255,255,255,0.2);
  border-color: rgba(255,255,255,0.6);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: var(--text-xs);
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: var(--text-base);
}

.btn-xl {
  padding: 1.125rem 2.5rem;
  font-size: var(--text-lg);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

/* Ripple effect */
.ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255,255,255,0.4);
  transform: scale(0);
  animation: ripple-anim 0.6s linear;
  pointer-events: none;
}

@keyframes ripple-anim {
  to { transform: scale(4); opacity: 0; }
}

/* ---- Cards ---- */
.card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition: all var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.card-body {
  padding: var(--space-6);
}

/* ---- Badges ---- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 0.25rem 0.75rem;
  font-size: var(--text-xs);
  font-weight: 600;
  border-radius: var(--radius-full);
  line-height: 1;
}

.badge-primary {
  background: rgba(255,59,92,0.12);
  color: var(--color-primary);
}

.badge-success {
  background: rgba(34,197,94,0.12);
  color: var(--color-success);
}

.badge-warning {
  background: rgba(245,158,11,0.12);
  color: var(--color-warning);
}

/* ---- Form Elements ---- */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
}

.form-input {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-base);
  transition: all var(--transition-fast);
  outline: none;
}

.form-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(255,59,92,0.12);
}

.form-input.is-error {
  border-color: var(--color-error);
  box-shadow: 0 0 0 3px rgba(239,68,68,0.12);
}

.form-input.is-success {
  border-color: var(--color-success);
}

.form-error {
  font-size: var(--text-sm);
  color: var(--color-error);
}

.form-hint {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* ---- Select ---- */
.form-select {
  width: 100%;
  padding: 0.75rem 2.5rem 0.75rem 1rem;
  background: var(--color-surface) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236B7280' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E") no-repeat right 0.75rem center;
  background-size: 16px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-base);
  appearance: none;
  cursor: pointer;
  transition: border-color var(--transition-fast);
  outline: none;
}

.form-select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(255,59,92,0.12);
}

/* ---- Option Cards (radio/checkbox styled) ---- */
.option-grid {
  display: grid;
  gap: var(--space-3);
}

.option-card {
  position: relative;
  cursor: pointer;
}

.option-card input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.option-card-body {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  background: var(--color-surface);
}

.option-card input:checked + .option-card-body {
  border-color: var(--color-primary);
  background: rgba(255,59,92,0.04);
}

.option-card-check {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 2px solid var(--color-border);
  flex-shrink: 0;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

.option-card input:checked + .option-card-body .option-card-check {
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.option-card input:checked + .option-card-body .option-card-check::after {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: white;
}

/* ---- Quantity Stepper ---- */
.qty-stepper {
  display: flex;
  align-items: center;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-surface);
  width: fit-content;
}

.qty-stepper button {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-xl);
  color: var(--color-text-muted);
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.qty-stepper button:hover {
  background: var(--color-surface-2);
  color: var(--color-primary);
}

.qty-stepper input {
  width: 64px;
  text-align: center;
  border: none;
  border-left: 2px solid var(--color-border);
  border-right: 2px solid var(--color-border);
  font-size: var(--text-base);
  font-weight: 600;
  padding: 0;
  height: 44px;
  outline: none;
  background: transparent;
}

/* ---- Divider ---- */
.divider {
  height: 1px;
  background: var(--color-border);
  border: none;
}

/* ---- Toast Notification ---- */
.toast {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  z-index: var(--z-toast);
  background: var(--color-secondary);
  color: white;
  padding: var(--space-4) var(--space-6);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xl);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  transform: translateY(100px);
  opacity: 0;
  transition: all var(--transition-spring);
  max-width: 380px;
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

.toast-success { border-left: 4px solid var(--color-success); }
.toast-error   { border-left: 4px solid var(--color-error); }
.toast-info    { border-left: 4px solid var(--color-accent); }

/* ---- Stars ---- */
.stars {
  display: flex;
  gap: 2px;
  color: var(--color-warning);
  font-size: var(--text-sm);
}

/* ---- Section Header ---- */
.section-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto var(--space-12);
}

.section-eyebrow {
  display: inline-block;
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}

.section-title {
  font-size: var(--text-4xl);
  font-weight: 800;
  margin-bottom: var(--space-4);
  line-height: 1.15;
}

.section-desc {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
}

@media (max-width: 640px) {
  .section-title { font-size: var(--text-3xl); }
  .section-desc  { font-size: var(--text-base); }
}