/**
 * Polo Exchange — UI motion & visual design system (frontend only).
 * Respects prefers-reduced-motion. Does not affect application behavior.
 */

:root {
  --shell-scroll-progress: 0;
  --ui-ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ui-ease-soft: cubic-bezier(0.33, 1, 0.68, 1);
  --ui-duration-fast: 0.18s;
  --ui-duration: 0.32s;
  --ui-duration-slow: 0.55s;
  --ui-shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04);
  --ui-shadow-md: 0 12px 36px -14px rgba(15, 23, 42, 0.1);
  --ui-shadow-lg: 0 20px 50px -18px rgba(37, 99, 235, 0.14);
  --ui-focus-ring: 0 0 0 3px color-mix(in srgb, var(--primary, #2563eb) 28%, transparent);
}

/* ── Scroll-linked shell motion (JS: app.js) ──────────────── */
@media (prefers-reduced-motion: no-preference) {
  .app-shell-body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    z-index: 60;
    height: 2px;
    width: 100%;
    pointer-events: none;
    transform: scaleX(var(--shell-scroll-progress, 0));
    transform-origin: 0 50%;
    background: linear-gradient(
      90deg,
      color-mix(in srgb, var(--primary, #3658ff) 35%, transparent),
      var(--primary, #3658ff)
    );
    opacity: 0;
    transition: opacity 0.35s var(--ui-ease-soft);
  }

  .app-shell-body.is-shell-scrolling::after {
    opacity: 0.65;
  }

  .app-topbar-anchor.is-topbar-snapping .app-topbar {
    transition:
      transform 0.52s var(--ui-ease-soft),
      opacity 0.44s var(--ui-ease-soft);
  }
}

/* ── Scroll reveal: block shell first, then inner data ───── */
@media (prefers-reduced-motion: no-preference) {
  /* Step 1 — block / card shell */
  .app-main.ui-scroll-reveal-active .ui-scroll-reveal:not(.is-revealed) {
    opacity: 0;
    transform: translate3d(0, 22px, 0);
  }

  .app-main.ui-scroll-reveal-active .ui-scroll-reveal.is-revealed:not(.ui-scroll-reveal--instant) {
    opacity: 1;
    transform: translate3d(0, 0, 0);
    transition:
      opacity 0.46s var(--ui-ease-out),
      transform 0.46s var(--ui-ease-out);
    transition-delay: var(--ui-reveal-delay, 0s);
  }

  .app-main.ui-scroll-reveal-active .ui-scroll-reveal--row:not(.is-revealed) {
    transform: translate3d(0, 10px, 0);
  }

  .app-main.ui-scroll-reveal-active .ui-scroll-reveal--row.is-revealed:not(.ui-scroll-reveal--instant) {
    transition-duration: 0.4s;
  }

  /* Step 2 — titles, values, tables inside the block */
  .app-main.ui-scroll-reveal-active .ui-scroll-reveal .ui-scroll-reveal__inner {
    opacity: 0;
    transform: translate3d(0, 12px, 0);
  }

  .app-main.ui-scroll-reveal-active .ui-scroll-reveal.is-revealed .ui-scroll-reveal__inner {
    opacity: 1;
    transform: translate3d(0, 0, 0);
    transition:
      opacity 0.58s var(--ui-ease-out),
      transform 0.58s var(--ui-ease-out);
    transition-delay: var(--ui-reveal-inner-delay, 0.18s);
  }

  .app-main.ui-scroll-reveal-active .ui-scroll-reveal--instant,
  .app-main.ui-scroll-reveal-active .ui-scroll-reveal--instant .ui-scroll-reveal__inner {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .app-main.ui-scroll-reveal-active .data-table tbody tr,
  .app-main.ui-scroll-reveal-active .dash-panel__table tbody tr,
  .app-main.ui-scroll-reveal-active .dash-table tbody tr {
    animation: none !important;
  }
}

@media (prefers-reduced-motion: reduce) {
  .ui-scroll-reveal,
  .ui-scroll-reveal__inner {
    opacity: 1;
    transform: none;
  }
}

/* ── Page enter ───────────────────────────────────────────── */
@keyframes ui-page-in {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Page-load enter disabled — content reveals on scroll instead (ui-motion.js). */
.app-main.ui-page-enter {
  animation: none;
}

/* ── Staggered content blocks ─────────────────────────────── */
.ui-stagger > * {
  animation: ui-page-in 0.55s var(--ui-ease-out) both;
}
.ui-stagger > *:nth-child(1) { animation-delay: 0.03s; }
.ui-stagger > *:nth-child(2) { animation-delay: 0.08s; }
.ui-stagger > *:nth-child(3) { animation-delay: 0.13s; }
.ui-stagger > *:nth-child(4) { animation-delay: 0.18s; }
.ui-stagger > *:nth-child(5) { animation-delay: 0.23s; }
.ui-stagger > *:nth-child(6) { animation-delay: 0.28s; }
.ui-stagger > *:nth-child(n + 7) { animation-delay: 0.33s; }

/* ── Tables ───────────────────────────────────────────────── */
@keyframes ui-row-in {
  from {
    opacity: 0;
    transform: translateX(-6px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.app-main .data-table tbody tr,
.app-main .dash-panel__table tbody tr,
.app-main .dash-table tbody tr {
  animation: ui-row-in 0.45s var(--ui-ease-out) both;
}

.app-main .data-table tbody tr:nth-child(1),
.app-main .dash-panel__table tbody tr:nth-child(1) { animation-delay: 0.04s; }
.app-main .data-table tbody tr:nth-child(2),
.app-main .dash-panel__table tbody tr:nth-child(2) { animation-delay: 0.07s; }
.app-main .data-table tbody tr:nth-child(3),
.app-main .dash-panel__table tbody tr:nth-child(3) { animation-delay: 0.1s; }
.app-main .data-table tbody tr:nth-child(4) { animation-delay: 0.13s; }
.app-main .data-table tbody tr:nth-child(5) { animation-delay: 0.16s; }
.app-main .data-table tbody tr:nth-child(n + 6),
.app-main .dash-panel__table tbody tr:nth-child(n + 6) { animation-delay: 0.2s; }

.app-main .data-table tbody tr,
.app-main .dash-panel__table tbody tr {
  transition: background-color var(--ui-duration-fast) ease;
}

/* ── Buttons & submits ────────────────────────────────────── */
.app-main button,
.app-main input[type='submit'],
.app-main .app-topbar-logout,
.app-main .dash-panel__action-link,
.app-main .dash-stat-card__link {
  transition:
    color var(--ui-duration-fast) ease,
    background-color var(--ui-duration-fast) ease,
    border-color var(--ui-duration-fast) ease,
    box-shadow var(--ui-duration) var(--ui-ease-out),
    transform var(--ui-duration-fast) var(--ui-ease-out),
    opacity var(--ui-duration-fast) ease;
}

.app-main button:not(:disabled):active,
.app-main input[type='submit']:not(:disabled):active {
  transform: scale(0.98);
}

.app-main .card .mini-form button[type='submit']:focus-visible,
.app-main button:focus-visible,
.app-main input[type='submit']:focus-visible {
  outline: none;
  box-shadow: var(--ui-focus-ring);
}

/* ── Modals (safe + generic) ────────────────────────────── */
@keyframes ui-modal-backdrop-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes ui-modal-dialog-in {
  from {
    opacity: 0;
    transform: translateY(14px) scale(0.97);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes ui-modal-dialog-out {
  from {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
  to {
    opacity: 0;
    transform: translateY(8px) scale(0.98);
  }
}

.safe-modal.is-open .safe-modal__backdrop {
  animation: ui-modal-backdrop-in 0.28s ease both;
}

.safe-modal.is-open .safe-modal__dialog {
  animation: ui-modal-dialog-in 0.38s var(--ui-ease-out) both;
}

.safe-modal.is-closing .safe-modal__dialog {
  animation: ui-modal-dialog-out 0.22s var(--ui-ease-soft) both;
}

.safe-modal.is-closing .safe-modal__backdrop {
  animation: ui-modal-backdrop-in 0.2s ease reverse both;
}

/* ── Chart loading & update ───────────────────────────────── */
@keyframes ui-chart-shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.dash-panel__chart.is-chart-loading,
.dash-rates-chart-wrap.is-chart-loading {
  position: relative;
  min-height: 8rem;
}

.dash-panel__chart.is-chart-loading::after,
.dash-rates-chart-wrap.is-chart-loading::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(
    90deg,
    rgba(241, 245, 249, 0) 0%,
    rgba(241, 245, 249, 0.85) 50%,
    rgba(241, 245, 249, 0) 100%
  );
  background-size: 200% 100%;
  animation: ui-chart-shimmer 1.4s ease-in-out infinite;
  pointer-events: none;
}

body.theme-dark .dash-panel__chart.is-chart-loading::after,
.dark .dash-panel__chart.is-chart-loading::after,
body.theme-dark .dash-rates-chart-wrap.is-chart-loading::after,
.dark .dash-rates-chart-wrap.is-chart-loading::after {
  background: linear-gradient(
    90deg,
    rgba(15, 23, 42, 0) 0%,
    rgba(51, 65, 85, 0.55) 50%,
    rgba(15, 23, 42, 0) 100%
  );
  background-size: 200% 100%;
}

.dash-panel__chart.is-chart-ready svg,
.dash-rates-chart-wrap.is-chart-ready svg {
  animation: ui-page-in 0.6s var(--ui-ease-out) both;
}

#dash-profit-chart-stage.is-soft-updating {
  opacity: 0.55;
  transition: opacity 0.22s ease;
}

#dash-profit-chart-stage.is-soft-updating .dash-profit-ogive-line,
#dash-profit-chart-stage.is-soft-updating .dash-profit-ogive-area {
  transition: opacity 0.22s ease;
}

/* ── Interactive chart legends ────────────────────────────── */
.dash-panel__legend--interactive {
  pointer-events: auto;
  gap: 0.65rem;
}

.dash-panel__legend-item {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.65rem;
  border: none;
  border-radius: 9999px;
  font: inherit;
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  background: transparent;
  transition:
    background-color var(--ui-duration-fast) ease,
    opacity var(--ui-duration-fast) ease,
    transform var(--ui-duration-fast) var(--ui-ease-out);
}

body.theme-light .dash-panel__legend-item,
body:not(.dark) .dash-panel__legend-item {
  color: #475569;
}
body.theme-dark .dash-panel__legend-item,
.dark .dash-panel__legend-item {
  color: #cbd5e1;
}

body.theme-light .dash-panel__legend-item:hover,
body:not(.dark) .dash-panel__legend-item:hover {
  background: rgba(241, 245, 249, 0.95);
}
body.theme-dark .dash-panel__legend-item:hover,
.dark .dash-panel__legend-item:hover {
  background: rgba(51, 65, 85, 0.5);
}

.dash-panel__legend-item.is-off {
  opacity: 0.4;
}

.dash-panel__legend-item:active {
  transform: scale(0.97);
}

/* ── Chart typography (SVG + tooltips) ───────────────────── */
.dash-profit-ogive-chart text,
.dash-rates-line-chart text,
.dash-currency-chart text,
.dash-chart-anim text,
.dash-profit-tooltip,
.dash-rates-tooltip,
.dash-currency-chart-tooltip {
  font-family: var(--eui-font, 'Inter', ui-sans-serif, system-ui, sans-serif);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.dash-rates-line-chart .dash-rates-axis-label,
.dash-profit-ogive-chart .dash-profit-axis-label,
.dash-chart-axis-label {
  font-variant-numeric: tabular-nums;
}

.dash-chart-anim .dash-line-buy.is-series-hidden,
.dash-chart-anim .dash-line-sell.is-series-hidden,
.dash-rates-line-chart .dash-line-buy.is-series-hidden,
.dash-rates-line-chart .dash-line-sell.is-series-hidden,
.dash-rates-line-chart .dash-rate-area-buy.is-series-hidden,
.dash-rates-line-chart .dash-rate-area-sell.is-series-hidden {
  opacity: 0.12;
  transition: opacity 0.35s var(--ui-ease-out);
}

/* ── Skeleton loaders ─────────────────────────────────────── */
.ui-skeleton {
  border-radius: 0.5rem;
  background: linear-gradient(
    90deg,
    #e2e8f0 0%,
    #f1f5f9 45%,
    #e2e8f0 90%
  );
  background-size: 200% 100%;
  animation: ui-chart-shimmer 1.5s ease-in-out infinite;
}

body.theme-dark .ui-skeleton,
.dark .ui-skeleton {
  background: linear-gradient(
    90deg,
    #1e293b 0%,
    #334155 45%,
    #1e293b 90%
  );
  background-size: 200% 100%;
}

/* ── Flash / alerts entrance ──────────────────────────────── */
.app-flash,
.alert,
.dash-panel__alert {
  animation: ui-page-in 0.45s var(--ui-ease-out) both;
}

/* ── Reduced motion ───────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  .app-main.ui-page-enter,
  .ui-stagger > *,
  .ui-scroll-reveal,
  .app-main .data-table tbody tr,
  .app-main .dash-panel__table tbody tr,
  .safe-modal.is-open .safe-modal__backdrop,
  .safe-modal.is-open .safe-modal__dialog,
  .dash-panel__chart.is-chart-ready svg,
  .app-flash,
  .dash-panel__alert {
    animation: none !important;
  }

  .app-main button:not(:disabled):active,
  .app-main input[type='submit']:not(:disabled):active,
  .dash-panel__legend-item:active {
    transform: none !important;
  }

  .dash-panel__chart.is-chart-loading::after,
  .dash-rates-chart-wrap.is-chart-loading::after,
  .ui-skeleton {
    animation: none !important;
    opacity: 0.5;
  }
}