/* ============================================================
   UI Component Library — Finanzas Familiar Ecuador
   Prefixed with .ui- to avoid collisions with app styles
   ============================================================ */

/* ── Keyframes ───────────────────────────────────────────── */
@keyframes ui-shimmer {
  0%   { background-position: -600px 0; }
  100% { background-position:  600px 0; }
}
@keyframes ui-spin {
  to { transform: rotate(360deg); }
}
@keyframes ui-toast-in {
  from { opacity: 0; transform: translateY(16px) scale(0.95); }
  to   { opacity: 1; transform: translateY(0)    scale(1); }
}
@keyframes ui-toast-out {
  from { opacity: 1; transform: translateY(0) scale(1); max-height: 80px; margin-bottom: 8px; }
  to   { opacity: 0; transform: translateY(-8px) scale(0.95); max-height: 0; margin-bottom: 0; }
}
@keyframes ui-modal-in {
  from { opacity: 0; transform: translateY(24px) scale(0.97); }
  to   { opacity: 1; transform: translateY(0)    scale(1); }
}
@keyframes ui-progress-stripe {
  from { background-position: 40px 0; }
  to   { background-position: 0 0; }
}
@keyframes ui-pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.4; }
}

/* ── Focus ring ──────────────────────────────────────────── */
.ui-focus-ring:focus-visible {
  outline: 3px solid var(--blue, #42A5F5);
  outline-offset: 2px;
}

/* ── Spinner ─────────────────────────────────────────────── */
.ui-spinner {
  display: inline-block;
  border-radius: 50%;
  border: 3px solid var(--border, #e0e0e0);
  border-top-color: currentColor;
  animation: ui-spin 0.7s linear infinite;
  flex-shrink: 0;
}
.ui-spinner-sm { width: 16px; height: 16px; border-width: 2px; }
.ui-spinner-md { width: 24px; height: 24px; }
.ui-spinner-lg { width: 40px; height: 40px; border-width: 4px; }

/* ── Badge ───────────────────────────────────────────────── */
.ui-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: 20px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.3px;
  line-height: 1.6;
}
.ui-badge-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: currentColor;
  flex-shrink: 0;
}
.ui-badge-success  { background: #E8F5E9; color: #2E7D32; }
.ui-badge-danger   { background: #FFEBEE; color: #C62828; }
.ui-badge-warning  { background: #FFF8E1; color: #F57F17; }
.ui-badge-info     { background: #E3F2FD; color: #1565C0; }
.ui-badge-neutral  { background: var(--bg, #f4f6f9); color: var(--text-light, #6b7280); }
.ui-badge-purple   { background: #EDE7F6; color: #4527A0; }
.dark .ui-badge-success  { background: #1B5E20; color: #A5D6A7; }
.dark .ui-badge-danger   { background: #B71C1C; color: #EF9A9A; }
.dark .ui-badge-warning  { background: #E65100; color: #FFCC80; }
.dark .ui-badge-info     { background: #0D47A1; color: #90CAF9; }
.dark .ui-badge-neutral  { background: #2d3548; color: #9ca3af; }
.dark .ui-badge-purple   { background: #311B92; color: #CE93D8; }

/* ── Progress bar ────────────────────────────────────────── */
.ui-progress-wrap { width: 100%; }
.ui-progress-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.72rem;
  color: var(--text-light, #6b7280);
  margin-bottom: 4px;
}
.ui-progress-track {
  width: 100%;
  background: var(--border, #e0e0e0);
  border-radius: 99px;
  overflow: hidden;
}
.ui-progress-bar {
  height: 100%;
  border-radius: 99px;
  background: var(--green, #4CAF50);
  transition: width 0.5s ease;
}
.ui-progress-bar.animated {
  background-image: linear-gradient(
    45deg,
    rgba(255,255,255,.2) 25%, transparent 25%,
    transparent 50%, rgba(255,255,255,.2) 50%,
    rgba(255,255,255,.2) 75%, transparent 75%, transparent
  );
  background-size: 40px 40px;
  animation: ui-progress-stripe 1s linear infinite;
}

/* ── Skeleton ────────────────────────────────────────────── */
.ui-skeleton {
  background: linear-gradient(
    90deg,
    var(--border, #e0e0e0) 25%,
    var(--bg, #f4f6f9) 50%,
    var(--border, #e0e0e0) 75%
  );
  background-size: 600px 100%;
  animation: ui-shimmer 1.4s ease-in-out infinite;
  border-radius: 8px;
}
.ui-skeleton-line  { height: 14px; margin-bottom: 8px; border-radius: 4px; }
.ui-skeleton-line:last-child { width: 70%; }
.ui-skeleton-card {
  background: var(--card, #fff);
  border-radius: var(--radius, 16px);
  padding: 16px;
  box-shadow: var(--shadow, 0 2px 12px rgba(0,0,0,0.08));
}
.ui-skeleton-avatar {
  width: 40px; height: 40px;
  border-radius: 50%;
  flex-shrink: 0;
}
.ui-skeleton-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border, #e0e0e0);
}
.ui-skeleton-row:last-child { border-bottom: none; }

/* ── Empty state ─────────────────────────────────────────── */
.ui-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
  text-align: center;
  color: var(--text-light, #6b7280);
}
.ui-empty-icon { font-size: 2.4rem; margin-bottom: 12px; line-height: 1; }
.ui-empty-title { font-size: 1rem; font-weight: 700; color: var(--text, #1a1a2e); margin-bottom: 6px; }
.ui-empty-desc  { font-size: 0.85rem; max-width: 280px; line-height: 1.5; }
.ui-empty-action { margin-top: 16px; }

/* ── Alert inline ────────────────────────────────────────── */
.ui-alert {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 14px;
  border-radius: 12px;
  font-size: 0.875rem;
  line-height: 1.5;
  border-left: 4px solid;
  position: relative;
}
.ui-alert-icon { font-size: 1.1rem; flex-shrink: 0; margin-top: 1px; }
.ui-alert-body { flex: 1; }
.ui-alert-close {
  background: none; border: none; cursor: pointer;
  font-size: 1rem; opacity: 0.6; padding: 0 2px;
  color: inherit; line-height: 1;
  transition: opacity 0.15s;
}
.ui-alert-close:hover { opacity: 1; }
.ui-alert-success { background: #E8F5E9; color: #2E7D32; border-color: #4CAF50; }
.ui-alert-danger  { background: #FFEBEE; color: #C62828; border-color: #EF5350; }
.ui-alert-warning { background: #FFF8E1; color: #E65100; border-color: #FF9800; }
.ui-alert-info    { background: #E3F2FD; color: #1565C0; border-color: #42A5F5; }
.dark .ui-alert-success { background: #1B5E20; color: #C8E6C9; border-color: #4CAF50; }
.dark .ui-alert-danger  { background: #4a1010; color: #FFCDD2; border-color: #EF5350; }
.dark .ui-alert-warning { background: #3d2800; color: #FFE0B2; border-color: #FF9800; }
.dark .ui-alert-info    { background: #0D2A4A; color: #BBDEFB; border-color: #42A5F5; }

/* ── Toast container ─────────────────────────────────────── */
#ui-toast-container {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 99999;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
  max-width: min(360px, calc(100vw - 40px));
}
.ui-toast {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 13px 16px;
  border-radius: 14px;
  font-size: 0.875rem;
  line-height: 1.45;
  font-weight: 500;
  pointer-events: all;
  cursor: default;
  animation: ui-toast-in 0.28s cubic-bezier(0.34,1.56,0.64,1) both;
  box-shadow: 0 8px 28px rgba(0,0,0,0.18);
  overflow: hidden;
  max-height: 80px;
}
.ui-toast.removing {
  animation: ui-toast-out 0.22s ease forwards;
}
.ui-toast-icon  { font-size: 1.15rem; flex-shrink: 0; margin-top: 1px; }
.ui-toast-msg   { flex: 1; }
.ui-toast-close {
  background: none; border: none; cursor: pointer;
  font-size: 0.9rem; opacity: 0.55; padding: 0;
  color: inherit; line-height: 1;
  transition: opacity 0.15s; flex-shrink: 0;
}
.ui-toast-close:hover { opacity: 1; }
.ui-toast-success { background: #2E7D32; color: #fff; }
.ui-toast-error   { background: #C62828; color: #fff; }
.ui-toast-warning { background: #E65100; color: #fff; }
.ui-toast-info    { background: #1565C0; color: #fff; }

/* ── Confirm dialog ──────────────────────────────────────── */
.ui-confirm-backdrop {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.55);
  z-index: 9998;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
}
.ui-confirm-dialog {
  background: var(--card, #fff);
  border-radius: 20px;
  padding: 28px 24px 20px;
  max-width: 360px;
  width: 100%;
  box-shadow: 0 24px 64px rgba(0,0,0,0.22);
  animation: ui-modal-in 0.25s cubic-bezier(0.34,1.56,0.64,1) both;
}
.ui-confirm-icon  { font-size: 2rem; text-align: center; margin-bottom: 10px; }
.ui-confirm-title { font-size: 1.05rem; font-weight: 700; color: var(--text, #1a1a2e); text-align: center; margin-bottom: 8px; }
.ui-confirm-msg   { font-size: 0.875rem; color: var(--text-light, #6b7280); text-align: center; line-height: 1.5; margin-bottom: 22px; }
.ui-confirm-actions { display: flex; gap: 10px; }
.ui-confirm-actions button { flex: 1; padding: 10px; border-radius: 12px; border: none; cursor: pointer; font-weight: 700; font-size: 0.88rem; font-family: inherit; transition: filter 0.15s; }
.ui-confirm-actions button:hover { filter: brightness(0.9); }
.ui-confirm-cancel  { background: var(--bg, #f4f6f9); color: var(--text, #1a1a2e); }
.ui-confirm-ok      { background: var(--green, #4CAF50); color: #fff; }
.ui-confirm-ok.danger { background: var(--red, #EF5350); }

/* ── Stat card loading ───────────────────────────────────── */
.summary-card[aria-busy="true"] .amount {
  display: inline-block;
  width: 80px; height: 22px;
  border-radius: 6px;
  vertical-align: middle;
}
.summary-card[aria-busy="true"] .amount,
.summary-card[aria-busy="true"] small {
  background: linear-gradient(90deg, var(--border) 25%, var(--bg) 50%, var(--border) 75%);
  background-size: 600px 100%;
  animation: ui-shimmer 1.4s ease-in-out infinite;
  border-radius: 4px;
  color: transparent;
}

/* ── Transaction list item ───────────────────────────────── */
.ui-txn-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border, #e0e0e0);
  animation: ui-modal-in 0.18s ease both;
}
.ui-txn-item:last-child { border-bottom: none; }
.ui-txn-icon {
  width: 38px; height: 38px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}
.ui-txn-icon-income  { background: #E8F5E9; }
.ui-txn-icon-expense { background: #FFEBEE; }
.dark .ui-txn-icon-income  { background: #1B5E20; }
.dark .ui-txn-icon-expense { background: #4a1010; }
.ui-txn-body  { flex: 1; min-width: 0; }
.ui-txn-desc  { font-size: 0.88rem; font-weight: 600; color: var(--text, #1a1a2e); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ui-txn-meta  { font-size: 0.72rem; color: var(--text-light, #6b7280); margin-top: 2px; }
.ui-txn-right { text-align: right; flex-shrink: 0; }
.ui-txn-amount { font-size: 0.92rem; font-weight: 700; }
.ui-txn-amount-income  { color: var(--green, #4CAF50); }
.ui-txn-amount-expense { color: var(--red, #EF5350); }
.ui-txn-delete {
  background: none; border: none; cursor: pointer;
  font-size: 1rem; opacity: 0; padding: 4px 6px;
  color: var(--red, #EF5350);
  transition: opacity 0.15s;
  border-radius: 8px;
}
.ui-txn-item:hover .ui-txn-delete { opacity: 1; }
.ui-txn-item:focus-within .ui-txn-delete { opacity: 1; }

/* ── Money display ───────────────────────────────────────── */
.ui-money { font-variant-numeric: tabular-nums; font-feature-settings: "tnum"; }
.ui-money-positive { color: var(--green, #4CAF50); }
.ui-money-negative { color: var(--red, #EF5350); }
.ui-money-neutral  { color: var(--text, #1a1a2e); }

/* ── Input field ─────────────────────────────────────────── */
.ui-field { display: flex; flex-direction: column; gap: 4px; }
.ui-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-light, #6b7280);
  letter-spacing: 0.3px;
}
.ui-label .ui-required { color: var(--red, #EF5350); margin-left: 2px; }
.ui-input-wrap { position: relative; display: flex; align-items: center; }
.ui-input-prefix,
.ui-input-suffix {
  position: absolute;
  font-size: 0.85rem;
  color: var(--text-light, #6b7280);
  pointer-events: none;
  z-index: 1;
}
.ui-input-prefix { left: 11px; }
.ui-input-suffix { right: 11px; }
.ui-input {
  width: 100%;
  background: var(--bg, #f4f6f9);
  border: 2px solid var(--border, #e0e0e0);
  border-radius: 10px;
  padding: 9px 12px;
  font-size: 0.88rem;
  color: var(--text, #1a1a2e);
  font-family: inherit;
  transition: border-color 0.15s, box-shadow 0.15s;
  outline: none;
}
.ui-input:focus {
  border-color: var(--blue, #42A5F5);
  box-shadow: 0 0 0 3px rgba(66,165,245,0.15);
}
.ui-input[aria-invalid="true"] {
  border-color: var(--red, #EF5350);
  box-shadow: 0 0 0 3px rgba(239,83,80,0.12);
}
.ui-input.has-prefix { padding-left: 28px; }
.ui-input.has-suffix { padding-right: 28px; }
.ui-helper { font-size: 0.72rem; color: var(--text-light, #6b7280); }
.ui-error-msg { font-size: 0.72rem; color: var(--red, #EF5350); display: none; }
.ui-field[data-error] .ui-error-msg { display: block; }
.ui-field[data-error] .ui-helper    { display: none; }

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 480px) {
  #ui-toast-container { bottom: 12px; right: 12px; left: 12px; max-width: none; }
  .ui-confirm-dialog  { border-radius: 16px; padding: 22px 18px 16px; }
}