/* Aurora Pathways — Shared dApp UI Enhancements
   Include AFTER each dApp's existing CSS.
   Provides: skeleton loading, empty states, micro-interactions,
   accessibility helpers, status badges, progress indicators. */

/* ───────────── Skeleton Loading ───────────── */
.skeleton {
  position: relative;
  overflow: hidden;
  background: rgba(255,255,255,.04) !important;
  color: transparent !important;
  border-color: transparent !important;
  pointer-events: none;
  user-select: none;
}
.skeleton * { visibility: hidden; }
.skeleton::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255,255,255,.06) 40%,
    rgba(255,255,255,.06) 60%,
    transparent 100%
  );
  animation: shimmer 1.5s ease-in-out infinite;
}
@keyframes shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

/* Skeleton card variant */
.skeleton-card {
  background: var(--card, #12121a);
  border: 1px solid var(--border, #1e1e2e);
  border-radius: var(--radius, 12px);
  padding: 20px;
}
.skeleton-line {
  height: 14px;
  background: rgba(255,255,255,.06);
  border-radius: 6px;
  margin-bottom: 10px;
  animation: shimmer 1.5s ease-in-out infinite;
  position: relative;
  overflow: hidden;
}
.skeleton-line::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.08), transparent);
  animation: shimmer 1.5s ease-in-out infinite;
}
.skeleton-line.short { width: 40%; }
.skeleton-line.medium { width: 70%; }
.skeleton-line.long { width: 90%; }
.skeleton-circle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255,255,255,.06);
  animation: shimmer 1.5s ease-in-out infinite;
  position: relative;
  overflow: hidden;
}
.skeleton-circle::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.08), transparent);
  animation: shimmer 1.5s ease-in-out infinite;
}

/* ───────────── Empty States ───────────── */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  text-align: center;
  gap: 16px;
}
.empty-state-icon {
  font-size: 48px;
  opacity: 0.6;
  margin-bottom: 8px;
}
.empty-state-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text, #e0e0e8);
}
.empty-state-desc {
  font-size: 14px;
  color: var(--text2, #8888a0);
  max-width: 320px;
  line-height: 1.5;
}
.empty-state-action {
  margin-top: 8px;
}

/* ───────────── Micro-Interactions ───────────── */
/* Button press feedback */
.btn-micro {
  transition: transform .15s ease, box-shadow .2s ease, background .2s ease;
}
.btn-micro:active {
  transform: scale(0.96);
}
.btn-micro:focus-visible {
  outline: 2px solid var(--accent, #7c5cfc);
  outline-offset: 2px;
}

/* Card hover lift */
.card-hover {
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.card-hover:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,.3);
  border-color: rgba(124,92,252,.2);
}

/* Ripple effect */
.ripple {
  position: relative;
  overflow: hidden;
}
.ripple::before {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, rgba(255,255,255,.15) 0%, transparent 70%);
  transform: scale(0);
  opacity: 0;
  transition: transform .4s ease, opacity .4s ease;
  pointer-events: none;
  left: 0;
  top: 0;
}
.ripple:active::before {
  transform: scale(2.5);
  opacity: 1;
  transition: 0s;
}

/* ───────────── Status Badges ───────────── */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.status-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}
.status-open { background: rgba(124,92,252,.12); color: #a78bfa; }
.status-open::before { background: #a78bfa; }
.status-progress { background: rgba(59,130,246,.12); color: #60a5fa; }
.status-progress::before { background: #60a5fa; animation: pulse-dot 2s ease-in-out infinite; }
.status-completed { background: rgba(78,201,176,.12); color: #4ec9b0; }
.status-completed::before { background: #4ec9b0; }
.status-cancelled { background: rgba(255,107,107,.12); color: #ff6b6b; }
.status-cancelled::before { background: #ff6b6b; }
.status-disputed { background: rgba(255,217,61,.12); color: #ffd93d; }
.status-disputed::before { background: #ffd93d; animation: pulse-dot 1s ease-in-out infinite; }
.status-pending { background: rgba(136,136,160,.12); color: #8888a0; }
.status-pending::before { background: #8888a0; }

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* ───────────── Progress Bar ───────────── */
.progress-bar {
  width: 100%;
  height: 6px;
  background: rgba(255,255,255,.06);
  border-radius: 3px;
  overflow: hidden;
}
.progress-bar-fill {
  height: 100%;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--accent, #7c5cfc), var(--accent2, #4ec9b0));
  transition: width .6s ease;
}
.progress-bar-fill.animated {
  background-size: 200% 100%;
  animation: progress-shimmer 2s linear infinite;
}
@keyframes progress-shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

/* ───────────── Milestone Tracker ───────────── */
.milestone-tracker {
  display: flex;
  align-items: center;
  gap: 0;
  padding: 12px 0;
}
.milestone-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  flex: 1;
  position: relative;
}
.milestone-dot {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 2px solid var(--border, #1e1e2e);
  background: var(--card, #12121a);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  z-index: 1;
  transition: all .3s ease;
}
.milestone-step.done .milestone-dot {
  background: var(--accent2, #4ec9b0);
  border-color: var(--accent2, #4ec9b0);
  color: #0a0a0f;
}
.milestone-step.active .milestone-dot {
  border-color: var(--accent, #7c5cfc);
  box-shadow: 0 0 0 4px rgba(124,92,252,.2);
  animation: pulse-ring 2s ease-in-out infinite;
}
.milestone-label {
  font-size: 10px;
  color: var(--text2, #8888a0);
  text-align: center;
  max-width: 80px;
}
.milestone-step.done .milestone-label { color: var(--accent2, #4ec9b0); }
.milestone-step.active .milestone-label { color: var(--accent, #7c5cfc); font-weight: 600; }
.milestone-line {
  flex: 1;
  height: 2px;
  background: var(--border, #1e1e2e);
  margin: 0 -4px;
  margin-bottom: 22px;
}
.milestone-line.done { background: var(--accent2, #4ec9b0); }

@keyframes pulse-ring {
  0%, 100% { box-shadow: 0 0 0 4px rgba(124,92,252,.2); }
  50% { box-shadow: 0 0 0 8px rgba(124,92,252,.05); }
}

/* ───────────── Toast Enhancement ───────────── */
.toast-enhanced {
  backdrop-filter: blur(16px);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 10px;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 500;
  animation: toast-in .3s cubic-bezier(.21,1.02,.73,1) forwards;
  box-shadow: 0 8px 32px rgba(0,0,0,.4);
}
.toast-enhanced.hiding {
  animation: toast-out .25s ease forwards;
}
@keyframes toast-in {
  from { transform: translateY(-12px) scale(.95); opacity: 0; }
  to { transform: translateY(0) scale(1); opacity: 1; }
}
@keyframes toast-out {
  to { transform: translateY(-12px) scale(.95); opacity: 0; }
}

/* ───────────── Wallet Prompt ───────────── */
.wallet-prompt {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  padding: 60px 20px;
  text-align: center;
}
.wallet-prompt-icon {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: rgba(124,92,252,.1);
  border: 2px solid rgba(124,92,252,.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 36px;
  animation: float 3s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
.wallet-prompt-title {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
}
.wallet-prompt-desc {
  font-size: 14px;
  color: var(--text2, #8888a0);
  max-width: 360px;
  line-height: 1.6;
}

/* ───────────── Stat Card Enhancement ───────────── */
.stat-card-enhanced {
  background: var(--card, #12121a);
  border: 1px solid var(--border, #1e1e2e);
  border-radius: var(--radius, 12px);
  padding: 16px 20px;
  position: relative;
  overflow: hidden;
}
.stat-card-enhanced::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent, #7c5cfc), var(--accent2, #4ec9b0));
  opacity: 0;
  transition: opacity .3s ease;
}
.stat-card-enhanced:hover::before { opacity: 1; }
.stat-value {
  font-size: 28px;
  font-weight: 800;
  color: #fff;
  line-height: 1;
  margin-bottom: 4px;
}
.stat-label {
  font-size: 11px;
  color: var(--text2, #8888a0);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.stat-change {
  font-size: 11px;
  font-weight: 600;
  margin-top: 4px;
}
.stat-change.up { color: var(--accent2, #4ec9b0); }
.stat-change.down { color: var(--error, #ff6b6b); }

/* ───────────── Accessibility Helpers ───────────── */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border-width: 0;
}
:focus-visible {
  outline: 2px solid var(--accent, #7c5cfc);
  outline-offset: 2px;
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ───────────── Responsive Helpers ───────────── */
@media (max-width: 640px) {
  .stat-value { font-size: 22px; }
  .empty-state { padding: 40px 16px; }
  .empty-state-icon { font-size: 36px; }
  .wallet-prompt { padding: 40px 16px; }
  .wallet-prompt-icon { width: 64px; height: 64px; font-size: 28px; }
}