/* RuCards dashboard shell — polished UI layer */

/* ── Base polish ─────────────────────────────────────────────── */

::selection {
  background: color-mix(in srgb, var(--color-cyan, #00b3d4) 28%, transparent);
  color: var(--color-ink-900, #0d1321);
}

#main-content {
  scroll-behavior: smooth;
}

#main-content:focus {
  outline: none;
}

.sidebar-nav-scroll,
#main-content {
  scrollbar-width: thin;
  scrollbar-color: color-mix(in srgb, var(--color-ink-300, #8a97b4) 55%, transparent) transparent;
}

.sidebar-nav-scroll::-webkit-scrollbar,
#main-content::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

.sidebar-nav-scroll::-webkit-scrollbar-thumb,
#main-content::-webkit-scrollbar-thumb {
  border-radius: 999px;
  background: color-mix(in srgb, var(--color-ink-300, #8a97b4) 45%, transparent);
}

.sidebar-nav-scroll::-webkit-scrollbar-thumb:hover,
#main-content::-webkit-scrollbar-thumb:hover {
  background: color-mix(in srgb, var(--color-ink-500, #4a5878) 55%, transparent);
}

/* ── Page transitions (HTMX SPA) ─────────────────────────────── */

#spa-page.shell-page-enter {
  opacity: 0;
  transform: translateY(10px);
}

#spa-page.shell-page-enter.shell-page-enter--active {
  opacity: 1;
  transform: translateY(0);
  transition:
    opacity 0.32s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.32s cubic-bezier(0.22, 1, 0.36, 1);
}

body.is-loading #spa-page {
  opacity: 0.88;
  transition: opacity 0.18s ease;
}

.shell-progress-bar {
  pointer-events: none;
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 60;
  height: 3px;
  opacity: 0;
  overflow: hidden;
  background: transparent;
  transition: opacity 0.14s ease;
}

.shell-progress-bar.htmx-request,
.htmx-request .shell-progress-bar {
  opacity: 1;
}

.shell-progress-bar__track {
  display: block;
  height: 100%;
  width: 38%;
  min-width: 9rem;
  border-radius: 999px;
  background: linear-gradient(90deg, transparent, var(--color-cyan, #00b3d4), var(--color-brand-600, #0f2d6b));
  box-shadow: 0 0 22px rgba(0, 179, 212, 0.32);
  animation: shell-progress-slide 1.1s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

#global-htmx-indicator .shell-loader-card {
  animation: shell-loader-pop 0.28s cubic-bezier(0.22, 1, 0.36, 1);
}

@keyframes shell-progress-slide {
  from {
    transform: translateX(-120%);
  }
  to {
    transform: translateX(280%);
  }
}

@keyframes shell-loader-pop {
  from {
    opacity: 0;
    transform: scale(0.96) translateY(6px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

/* ── Panels & stat cards ─────────────────────────────────────── */

.shell-panel {
  border: 1px solid color-mix(in srgb, var(--color-border, #dde3ef) 88%, white);
  border-radius: var(--radius-lg, 18px);
  background: var(--color-surface, #fff);
  box-shadow: var(--shadow-sm);
}

.shell-panel--elevated {
  box-shadow: var(--shadow-md);
}

.admin-page-header {
  position: relative;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  overflow: hidden;
  border: 1px solid #e3e8f2;
  border-radius: 24px;
  background:
    radial-gradient(70% 90% at 100% 0%, rgba(0, 179, 212, 0.1), transparent 70%),
    linear-gradient(180deg, var(--color-surface, #fff) 0%, var(--color-surface-soft, #f5f7fc) 100%);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
}

.admin-page-header__kicker {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-ink-500, #4a5878);
}

.admin-page-header__title {
  margin-top: 0.25rem;
  font-size: clamp(1.35rem, 2vw, 1.875rem);
  font-weight: 700;
  letter-spacing: -0.035em;
  color: var(--color-ink-900, #0d1321);
}

.admin-page-header__description {
  margin-top: 0.5rem;
  max-width: 46rem;
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--color-ink-500, #4a5878);
}

.admin-page-header__badge {
  display: inline-flex;
  flex-shrink: 0;
  align-items: center;
  border-radius: 999px;
  border: 1px solid #cdeaf1;
  background: #eefbfe;
  padding: 0.45rem 0.75rem;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--color-ink-700, #283653);
}

.admin-filter-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.625rem;
  padding: 1rem;
}

.admin-table-section {
  border: 1px solid #e3e8f2;
  border-radius: var(--radius-lg, 18px);
  background: var(--color-surface, #fff);
  box-shadow: var(--shadow-sm);
}

.admin-table-section__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid #e7ebf3;
  padding: 1rem 1.1rem;
}

.shell-stat-card {
  border: 1px solid color-mix(in srgb, var(--color-border, #dde3ef) 88%, white);
  border-radius: var(--radius-lg, 18px);
  background: linear-gradient(180deg, var(--color-surface, #fff) 0%, var(--color-surface-soft, #f5f7fc) 100%);
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
}

.shell-stat-card:hover {
  border-color: color-mix(in srgb, var(--color-cyan, #00b3d4) 22%, var(--color-border, #dde3ef));
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

/* ── Filter bars ─────────────────────────────────────────────── */

.shell-filter-bar {
  border: 1px solid color-mix(in srgb, var(--color-border, #dde3ef) 88%, white);
  border-radius: var(--radius-lg, 18px);
  background: linear-gradient(180deg, var(--color-surface, #fff) 0%, var(--color-surface-soft, #f5f7fc) 100%);
  box-shadow: var(--shadow-sm);
}

.shell-filter-bar input[type="search"],
.shell-filter-bar input[type="text"],
.shell-filter-bar input[type="date"],
.shell-filter-bar select,
.shell-input {
  border-radius: 14px;
  border: 1px solid var(--color-border, #dde3ef);
  background: var(--color-surface, #fff);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.shell-filter-bar input:focus,
.shell-filter-bar select:focus,
.shell-input:focus {
  outline: none;
  border-color: color-mix(in srgb, var(--color-cyan, #00b3d4) 45%, var(--color-border, #dde3ef));
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--color-cyan, #00b3d4) 14%, transparent);
}

/* ── Buttons ─────────────────────────────────────────────────── */

.shell-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
  border-radius: 14px;
  padding: 0.625rem 1rem;
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.25rem;
  transition: background-color 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease, transform 0.12s ease;
}

.shell-btn:active:not(:disabled) {
  transform: translateY(1px);
}

.shell-btn--primary {
  background: linear-gradient(
    135deg,
    var(--color-navy, #0f2d6b) 0%,
    color-mix(in srgb, var(--color-cyan-deep, #0097b8) 35%, var(--color-navy, #0f2d6b)) 100%
  );
  color: #fff;
  box-shadow: 0 8px 22px color-mix(in srgb, var(--color-navy, #0f2d6b) 18%, transparent);
}

.shell-btn--primary:hover {
  filter: brightness(1.05);
}

.shell-btn--secondary {
  border: 1px solid var(--color-border, #dde3ef);
  background: var(--color-surface, #fff);
  color: var(--color-ink-800, #162038);
  box-shadow: var(--shadow-sm);
}

.shell-btn--secondary:hover {
  background: var(--color-surface-muted, #eef1f8);
}

.shell-btn--ghost {
  background: var(--color-surface-3, #e8ecf5);
  color: var(--color-ink-800, #162038);
}

.shell-btn--ghost:hover {
  background: var(--color-surface-4, #dfe4ef);
}

.shell-btn--danger {
  border: 1px solid rgba(220, 38, 38, 0.18);
  background: #dc2626;
  color: #fff;
  box-shadow: 0 8px 22px rgba(220, 38, 38, 0.16);
}

.shell-btn--danger:hover {
  background: #b91c1c;
}

.shell-status-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  border: 1px solid #dfe5ef;
  background: #f5f7fc;
  padding: 0.25rem 0.625rem;
  font-size: 0.75rem;
  font-weight: 700;
  line-height: 1rem;
  color: var(--color-ink-700, #283653);
}

.shell-status-badge--success {
  border-color: #bbf7d0;
  background: #ecfdf5;
  color: #047857;
}

.shell-status-badge--warning {
  border-color: #fde68a;
  background: #fffbeb;
  color: #92400e;
}

.shell-status-badge--danger {
  border-color: #fecaca;
  background: #fef2f2;
  color: #b91c1c;
}

.shell-status-badge--info {
  border-color: #bae6fd;
  background: #f0f9ff;
  color: #0369a1;
}

.shell-status-badge--neutral {
  border-color: #dfe5ef;
  background: #f8fafc;
  color: var(--color-ink-600, #36445f);
}

/* ── Tables ──────────────────────────────────────────────────── */

.shell-table-wrap {
  overflow-x: auto;
  border: 1px solid color-mix(in srgb, var(--color-border, #dde3ef) 88%, white);
  border-radius: var(--radius-lg, 18px);
  background: var(--color-surface, #fff);
  box-shadow: var(--shadow-sm);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.875rem;
}

.data-table thead {
  position: sticky;
  top: 0;
  z-index: 1;
  background: linear-gradient(180deg, var(--color-surface-soft, #f5f7fc) 0%, var(--color-surface-muted, #eef1f8) 100%);
}

.data-table thead th {
  padding: 0.75rem 0.75rem;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-ink-500, #4a5878);
  border-bottom: 1px solid var(--color-border, #dde3ef);
  white-space: nowrap;
}

.data-table tbody tr {
  border-bottom: 1px solid color-mix(in srgb, var(--color-border, #dde3ef) 70%, transparent);
  transition: background-color 0.14s ease;
}

.data-table tbody tr:last-child {
  border-bottom: none;
}

.data-table tbody tr:hover {
  background: color-mix(in srgb, var(--color-cyan, #00b3d4) 5%, var(--color-surface, #fff));
}

.data-table tbody td {
  padding: 0.85rem 0.75rem;
  color: var(--color-ink-800, #162038);
  vertical-align: middle;
}

.data-table tbody tr:nth-child(even) {
  background: color-mix(in srgb, var(--color-surface-soft, #f5f7fc) 55%, transparent);
}

.data-table tbody tr:nth-child(even):hover {
  background: color-mix(in srgb, var(--color-cyan, #00b3d4) 6%, var(--color-surface-soft, #f5f7fc));
}

/* ── Empty state ─────────────────────────────────────────────── */

.shell-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  border: 1px dashed color-mix(in srgb, var(--color-cyan, #00b3d4) 28%, var(--color-border, #dde3ef));
  border-radius: var(--radius-lg, 18px);
  padding: 2.75rem 1.5rem;
  text-align: center;
  color: var(--color-ink-500, #4a5878);
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, color-mix(in srgb, var(--color-cyan, #00b3d4) 8%, transparent), transparent 70%),
    var(--color-surface-soft, #f5f7fc);
}

.shell-empty-state__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--color-cyan, #00b3d4) 12%, white);
  color: var(--color-cyan-deep, #0097b8);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--color-cyan, #00b3d4) 18%, transparent);
}

.shell-empty-state__title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-ink-900, #0d1321);
}

.shell-empty-state__message {
  max-width: 28rem;
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--color-ink-500, #4a5878);
}

.shell-empty-state__action {
  margin-top: 0.25rem;
  display: inline-flex;
  align-items: center;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--color-navy, #0f2d6b), color-mix(in srgb, var(--color-cyan-deep, #0097b8) 40%, var(--color-navy, #0f2d6b)));
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: #fff;
  text-decoration: none;
  box-shadow: 0 8px 20px color-mix(in srgb, var(--color-navy, #0f2d6b) 16%, transparent);
  transition: filter 0.15s ease, transform 0.12s ease;
}

.shell-empty-state__action:hover {
  filter: brightness(1.06);
}

.shell-empty-state__action:focus-visible {
  outline: 2px solid var(--color-cyan, #00b3d4);
  outline-offset: 2px;
}

/* ── Pagination ──────────────────────────────────────────────── */

.shell-pagination {
  border: 1px solid color-mix(in srgb, var(--color-border, #dde3ef) 88%, white);
  border-radius: var(--radius-lg, 18px);
  background: var(--color-surface, #fff);
  box-shadow: var(--shadow-sm);
}

.shell-pagination a {
  transition: background-color 0.14s ease, border-color 0.14s ease, color 0.14s ease;
}

.shell-pagination a:hover {
  border-color: color-mix(in srgb, var(--color-cyan, #00b3d4) 30%, var(--color-border, #dde3ef));
  background: color-mix(in srgb, var(--color-cyan, #00b3d4) 6%, var(--color-surface-2, #eef1f8));
}

/* ── Alerts (flash messages) ───────────────────────────────── */

#messages-container .alert {
  animation: shell-alert-in 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

@keyframes shell-alert-in {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ── Topbar chrome ───────────────────────────────────────────── */

#topbar {
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

body.is-loading #topbar {
  box-shadow: 0 12px 32px color-mix(in srgb, var(--color-navy, #0f2d6b) 6%, transparent);
}

/* ── Responsive tables ───────────────────────────────────────── */

@media (max-width: 768px) {
  .data-table thead {
    display: none;
  }

  .shell-table-wrap {
    border: none;
    background: transparent;
    box-shadow: none;
    overflow: visible;
  }

  .data-table tbody tr {
    display: block;
    margin-bottom: 1rem;
    border: 1px solid var(--color-border, #dde3ef);
    border-radius: var(--radius-lg, 18px);
    padding: 0.75rem 1rem;
    background: var(--color-surface, #fff);
    box-shadow: var(--shadow-sm);
  }

  .data-table tbody tr:nth-child(even) {
    background: var(--color-surface, #fff);
  }

  .data-table tbody td {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.4rem 0;
    border: none;
    text-align: right;
  }

  .data-table tbody td::before {
    content: attr(data-label);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--color-ink-500, #4a5878);
    text-align: left;
    flex: 1 1 42%;
  }

  .data-table tbody td[colspan] {
    display: block;
    text-align: center;
  }

  .data-table tbody td[colspan]::before {
    display: none;
  }
}

/* ── Dashboard forms ─────────────────────────────────────────── */

.shell-form input:not([type="checkbox"]):not([type="radio"]):not([type="hidden"]),
.shell-form select,
.shell-form textarea {
  transition:
    border-color 0.18s ease,
    box-shadow 0.18s ease,
    background-color 0.18s ease;
}

.shell-form input:not([type="checkbox"]):not([type="radio"]):focus,
.shell-form select:focus,
.shell-form textarea:focus {
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-cyan, #00b3d4) 18%, transparent);
}

.shell-form input.is-invalid,
.shell-form select.is-invalid,
.shell-form textarea.is-invalid {
  border-color: var(--color-danger, #dc2626);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-danger, #dc2626) 14%, transparent);
}

.shell-form button[type="submit"].is-loading,
.shell-form input[type="submit"].is-loading {
  opacity: 0.72;
  pointer-events: none;
  position: relative;
}

.shell-form button[type="submit"].is-loading::after,
.shell-form input[type="submit"].is-loading::after {
  content: "";
  position: absolute;
  right: 0.85rem;
  top: 50%;
  width: 0.95rem;
  height: 0.95rem;
  margin-top: -0.475rem;
  border: 2px solid color-mix(in srgb, currentColor 28%, transparent);
  border-top-color: currentColor;
  border-radius: 999px;
  animation: shell-form-spin 0.65s linear infinite;
}

@keyframes shell-form-spin {
  to {
    transform: rotate(360deg);
  }
}

.shell-form {
  animation: shell-form-enter 0.28s cubic-bezier(0.22, 1, 0.36, 1);
}

@keyframes shell-form-enter {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  #spa-page.shell-page-enter,
  #spa-page.shell-page-enter.shell-page-enter--active,
  body.is-loading #spa-page,
  .shell-stat-card,
  .shell-btn,
  #messages-container .alert,
  #global-htmx-indicator .shell-loader-card,
  .shell-form,
  .shell-form button[type="submit"].is-loading::after,
  .shell-form input[type="submit"].is-loading::after {
    animation: none;
    transition: none;
    transform: none;
  }
}