/**
 * SmartSwing AI — Global toast + inline form-error system (Tier 2 #5).
 *
 * Replaces `alert()` calls across the app with accessible, queued,
 * auto-dismissing notifications. Respects prefers-reduced-motion.
 *
 * Include on any page:
 *   <link rel="stylesheet" href="./toast.css">
 *   <script src="./toast.js" defer></script>
 *
 * Then anywhere in page JS:
 *   window.SmartSwingToast.show('Report saved', { type: 'success' });
 *   window.SmartSwingToast.error('Upload failed — check your connection.');
 *   window.SmartSwingToast.show('Free analysis used', {
 *     type: 'info',
 *     action: { label: 'Upgrade →', href: './pricing.html' }
 *   });
 */

.ss-toast-wrap {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 10000;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
  max-width: calc(100vw - 48px);
}

@media (max-width: 640px) {
  .ss-toast-wrap {
    bottom: 16px;
    right: 16px;
    left: 16px;
    align-items: center;
  }
}

.ss-toast {
  pointer-events: auto;
  min-width: 280px;
  max-width: 420px;
  padding: 14px 16px;
  border-radius: 14px;
  background: rgba(16, 18, 22, 0.98);
  color: #f5f5f7;
  font-family: "DM Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 14px;
  line-height: 1.5;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.38);
  display: flex;
  align-items: flex-start;
  gap: 10px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transform: translateX(40px);
  opacity: 0;
  animation: ss-toast-in 220ms cubic-bezier(0.22, 0.61, 0.36, 1) forwards;
}

.ss-toast--success { border-left: 3px solid #39ff14; }
.ss-toast--error   { border-left: 3px solid #ff5252; }
.ss-toast--warn    { border-left: 3px solid #ff9f0a; }
.ss-toast--info    { border-left: 3px solid #3b82f6; }

.ss-toast__icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 1px;
}
.ss-toast--success .ss-toast__icon { color: #39ff14; }
.ss-toast--error   .ss-toast__icon { color: #ff5252; }
.ss-toast--warn    .ss-toast__icon { color: #ff9f0a; }
.ss-toast--info    .ss-toast__icon { color: #3b82f6; }

.ss-toast__body {
  flex: 1;
  min-width: 0;
  word-wrap: break-word;
}

.ss-toast__title {
  font-weight: 700;
  margin-bottom: 2px;
}

.ss-toast__action {
  display: inline-block;
  margin-top: 6px;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(57, 255, 20, 0.12);
  color: #39ff14;
  font-size: 12px;
  font-weight: 700;
  text-decoration: none;
  border: 1px solid rgba(57, 255, 20, 0.28);
}
.ss-toast__action:hover { background: rgba(57, 255, 20, 0.2); }

.ss-toast__close {
  flex-shrink: 0;
  background: none;
  border: none;
  color: rgba(255, 255, 255, 0.45);
  cursor: pointer;
  font-size: 18px;
  line-height: 1;
  padding: 0 4px;
  margin-left: 4px;
  transition: color 120ms;
}
.ss-toast__close:hover { color: #f5f5f7; }

.ss-toast.is-leaving {
  animation: ss-toast-out 180ms cubic-bezier(0.4, 0, 0.68, 0.06) forwards;
}

@keyframes ss-toast-in {
  to { transform: translateX(0); opacity: 1; }
}
@keyframes ss-toast-out {
  to { transform: translateX(40px); opacity: 0; }
}

/* Inline form-error class — use alongside toasts for field-specific errors */
.ss-form-error {
  display: block;
  font-size: 12px;
  color: #ff5252;
  margin-top: 4px;
  font-family: "DM Sans", sans-serif;
  min-height: 16px;
  line-height: 1.4;
}
.ss-form-error:empty { min-height: 0; }

input.ss-field-invalid,
textarea.ss-field-invalid,
select.ss-field-invalid {
  border-color: #ff5252 !important;
  box-shadow: 0 0 0 3px rgba(255, 82, 82, 0.12);
}

@media (prefers-reduced-motion: reduce) {
  .ss-toast,
  .ss-toast.is-leaving {
    animation: none;
    transform: none;
    opacity: 1;
  }
}