/* Shared design tokens & UI primitives */

:root {
  --ui-bg: #0f172a;
  --ui-surface: #1e293b;
  --ui-surface-raised: #334155;
  --ui-surface-hover: #3b4a63;
  --ui-border: rgba(148, 163, 184, 0.18);
  --ui-border-strong: rgba(148, 163, 184, 0.32);
  --ui-text: #e2e8f0;
  --ui-text-muted: #94a3b8;
  --ui-text-subtle: #64748b;
  --ui-accent: #3b82f6;
  --ui-accent-hover: #2563eb;
  --ui-accent-ring: rgba(59, 130, 246, 0.45);
  --ui-success: #22c55e;
  --ui-warning: #f59e0b;
  --ui-danger: #ef4444;
  --ui-radius-sm: 0.375rem;
  --ui-radius: 0.5rem;
  --ui-radius-lg: 0.75rem;
  --ui-shadow: 0 4px 24px rgba(0, 0, 0, 0.28);
  --ui-dropdown-shadow: 0 8px 24px rgba(0, 0, 0, 0.36);
  --ui-transition: color 150ms ease, background-color 150ms ease, border-color 150ms ease, opacity 150ms ease, box-shadow 150ms ease;
  --ui-chrome-bg: var(--ui-bg);
  --ui-chrome-border: rgba(148, 163, 184, 0.18);
  --ui-chrome-hover-border: rgba(148, 163, 184, 0.28);
  --dock-inset-x: 0.75rem;
}

html {
  background-color: var(--ui-bg);
  scrollbar-gutter: stable;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

html.app-nav-pending body {
  pointer-events: none;
  cursor: wait;
}

body {
  color: var(--ui-text);
  font-feature-settings: "kern" 1, "liga" 1;
}

/* Nav icon layer stack — duplicated here so icons stay correct even if menu.css loads late */
.menu-icon {
  position: relative;
  display: block;
  width: 1.5rem;
  height: 1.5rem;
  overflow: hidden;
  flex-shrink: 0;
}

.menu-icon > img.icon-outline,
.menu-icon > img.icon-filled {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  max-width: none;
  margin: 0;
  object-fit: contain;
  filter: brightness(0) invert(1);
  pointer-events: none;
}

.menu-icon > img.icon-outline {
  opacity: 0.5;
}

.menu-icon > img.icon-filled {
  opacity: 0;
}

/* Page layout */
.page-content {
  padding-top: 0;
  padding-bottom: 1.25rem;
}

.page-header {
  margin-bottom: 1.75rem;
}

.page-header-title {
  font-size: 1.625rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: #fff;
  line-height: 1.2;
}

.page-header-subtitle {
  margin-top: 0.375rem;
  font-size: 0.9375rem;
  color: var(--ui-text-muted);
  line-height: 1.5;
}

/* Cards */
.ui-card {
  background: var(--ui-surface);
  border: 1px solid var(--ui-border);
  border-radius: var(--ui-radius-lg);
  box-shadow: var(--ui-shadow);
}

.ui-card-body {
  padding: 1.5rem;
}

.ui-card-title {
  font-size: 1.375rem;
  font-weight: 700;
  color: #fff;
  text-align: center;
  margin-bottom: 1.5rem;
}

/* Forms */
.ui-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--ui-text-muted);
  margin-bottom: 0.5rem;
}

.ui-input,
.ui-select,
.ui-textarea {
  display: block;
  width: 100%;
  padding: 0.625rem 0.875rem;
  font-size: 0.9375rem;
  color: #fff;
  background: var(--ui-surface-raised);
  border: 1px solid var(--ui-border-strong);
  border-radius: var(--ui-radius);
  transition: var(--ui-transition);
}

.ui-input::placeholder,
.ui-textarea::placeholder {
  color: var(--ui-text-subtle);
}

.ui-input:focus,
.ui-select:focus,
.ui-textarea:focus {
  outline: none;
  border-color: var(--ui-accent);
  box-shadow: 0 0 0 3px var(--ui-accent-ring);
}

.ui-search-input:focus {
  outline: none;
  box-shadow: none;
  border-color: var(--ui-chrome-hover-border);
}

.ui-search-input:focus-visible {
  border-color: rgba(148, 163, 184, 0.38);
}

.ui-search-input {
  background: var(--ui-chrome-bg);
  border-color: var(--ui-chrome-border);
  padding: 0.5rem 0.75rem 0.5rem 2.125rem;
  min-height: 2.5rem;
  line-height: 1.25;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%2394a3b8'><path d='M10 18a7.952 7.952 0 0 0 4.897-1.688l4.396 4.396 1.414-1.414-4.396-4.396A7.952 7.952 0 0 0 18 10c0-4.411-3.589-8-8-8s-8 3.589-8 8 3.589 8 8 8zm0-14c3.309 0 6 2.691 6 6s-2.691 6-6 6-6-2.691-6-6 2.691-6 6-6z'/></svg>");
  background-repeat: no-repeat;
  background-position: left 0.625rem center;
  background-size: 1rem;
  -webkit-appearance: none;
  appearance: none;
}

.ui-search-input::-webkit-search-decoration,
.ui-search-input::-webkit-search-cancel-button,
.ui-search-input::-webkit-search-results-button {
  -webkit-appearance: none;
  appearance: none;
  display: none;
}

.ui-search-input:hover {
  border-color: var(--ui-chrome-hover-border);
}

.ui-form-group {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.ui-form-stack {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

/* Buttons */
.ui-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
  padding: 0.625rem 1.125rem;
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.25;
  border-radius: var(--ui-radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--ui-transition);
  text-decoration: none;
}

.ui-btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--ui-accent-ring);
}

.ui-btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.ui-btn-primary {
  background: var(--ui-accent);
  color: #fff;
}

.ui-btn-primary:hover:not(:disabled) {
  background: var(--ui-accent-hover);
}

.ui-btn-secondary {
  background: var(--ui-surface-raised);
  color: var(--ui-text);
  border-color: var(--ui-border-strong);
}

.ui-btn-secondary:hover:not(:disabled) {
  background: var(--ui-surface-hover);
  border-color: var(--ui-accent);
}

.ui-btn-ghost {
  background: transparent;
  color: var(--ui-text-muted);
  border-color: var(--ui-border);
}

.ui-btn-ghost:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.04);
  color: #fff;
}

.ui-btn-block {
  width: 100%;
}

.ui-btn-lg {
  padding: 0.75rem 1.25rem;
}

/* Amount chips (wallet top-up) */
.ui-amount-chip {
  padding: 0.75rem;
  text-align: center;
  font-weight: 600;
  color: #fff;
  background: var(--ui-surface);
  border: 1px solid var(--ui-border-strong);
  border-radius: var(--ui-radius);
  cursor: pointer;
  transition: var(--ui-transition);
}

.ui-amount-chip:hover {
  border-color: var(--ui-accent);
  background: rgba(59, 130, 246, 0.08);
}

.ui-amount-chip:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--ui-accent-ring);
}

/* Alerts & notices */
.ui-alert {
  padding: 0.875rem 1rem;
  border-radius: var(--ui-radius);
  font-size: 0.875rem;
  line-height: 1.45;
  border: 1px solid transparent;
}

.ui-alert-error {
  background: rgba(127, 29, 29, 0.35);
  border-color: rgba(239, 68, 68, 0.45);
  color: #fecaca;
}

.ui-alert-success {
  background: rgba(20, 83, 45, 0.35);
  border-color: rgba(34, 197, 94, 0.45);
  color: #bbf7d0;
}

.ui-alert-warning {
  background: rgba(120, 53, 15, 0.35);
  border-color: rgba(245, 158, 11, 0.45);
  color: #fde68a;
}

.ui-alert-info {
  background: rgba(30, 58, 138, 0.25);
  border-color: rgba(59, 130, 246, 0.35);
  color: #bfdbfe;
}

/* Balance display */
.ui-balance-card {
  text-align: center;
  padding: 1.75rem 1.5rem;
}

.ui-balance-amount {
  font-size: 2.25rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.ui-balance-label {
  margin-top: 0.375rem;
  font-size: 0.9375rem;
  color: var(--ui-text-muted);
}

.ui-balance-meta {
  margin-top: 0.5rem;
  font-size: 0.8125rem;
  color: var(--ui-text-subtle);
}

/* Section headings inside pages */
.ui-section-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 0.75rem;
}

/* Details/summary panels */
.ui-details {
  border: 1px solid var(--ui-border);
  border-radius: var(--ui-radius-lg);
  background: rgba(30, 41, 59, 0.55);
  overflow: hidden;
}

.ui-details-summary {
  cursor: pointer;
  list-style: none;
  padding: 0.875rem 1rem;
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
  transition: var(--ui-transition);
}

.ui-details-summary::-webkit-details-marker {
  display: none;
}

.ui-details-summary:hover {
  background: rgba(255, 255, 255, 0.03);
}

.ui-details-body {
  padding: 0 1rem 1rem;
  border-top: 1px solid var(--ui-border);
}

/* Dropdown & menu item helpers */
.ui-dropdown-item {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.375rem 0.625rem;
  font-size: 0.8125rem;
  color: var(--ui-text-muted);
  text-decoration: none;
  transition: background-color 50ms ease, color 50ms ease;
  cursor: pointer;
  position: relative;
  border: none;
  background: transparent;
  width: 100%;
  text-align: left;
}

.ui-dropdown-item:hover,
.ui-dropdown-item:focus-visible {
  background: rgba(59, 130, 246, 0.12);
  color: #fff;
  outline: none;
}

.ui-dropdown-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: transparent;
  transition: background-color 150ms ease;
  border-radius: 0;
}

.ui-dropdown-item:hover::before,
.ui-dropdown-item:focus-visible::before {
  background: var(--ui-accent);
}

.submenu-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 0.375rem 0.625rem;
  font-size: 0.8125rem;
  color: var(--ui-text-muted);
  background: transparent;
  border: none;
  cursor: pointer;
  transition: background-color 50ms ease, color 50ms ease;
  position: relative;
  text-align: left;
}

.submenu-toggle:hover,
.submenu-toggle:focus-visible,
.submenu-toggle[aria-expanded="true"] {
  background: rgba(59, 130, 246, 0.12);
  color: #fff;
  outline: none;
}

.submenu-toggle::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: transparent;
  transition: background-color 150ms ease;
}

.submenu-toggle:hover::before,
.submenu-toggle:focus-visible::before,
.submenu-toggle[aria-expanded="true"]::before {
  background: var(--ui-accent);
}

.submenu-menu .ui-dropdown-item {
  padding-left: 1rem;
}

.submenu-menu {
  padding: 0;
  border-radius: 0;
}

.dropdown-menu .ui-input,
.dropdown-menu .ui-search-input {
  border-radius: 0;
  border-left: none;
  border-right: none;
  border-top: none;
}

.dropdown-empty {
  display: block;
  padding: 0.5rem 0.625rem;
  font-size: 0.8125rem;
  color: var(--ui-text-subtle);
  text-align: center;
}

.dropdown-order-item {
  display: block;
  text-decoration: none;
  color: inherit;
  transition: var(--ui-transition);
}

.dropdown-order-item:hover,
.dropdown-order-item:focus-visible {
  background: rgba(59, 130, 246, 0.12);
  outline: none;
}

.dropdown-order-item:hover .dropdown-order-title,
.dropdown-order-item:focus-visible .dropdown-order-title {
  color: #fff;
}

/* Crypto payment method buttons */
.ui-crypto-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  color: #fff;
  background: var(--ui-surface);
  border: 1px solid var(--ui-border-strong);
  border-radius: var(--ui-radius-lg);
  transition: var(--ui-transition);
}

.ui-crypto-btn:hover {
  border-color: var(--ui-accent);
  background: rgba(59, 130, 246, 0.08);
}

.ui-crypto-btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--ui-accent-ring);
}

/* Mobile dock panels — card-aligned width, matches pinned search */
@media (max-width: 768px) {
  .dropdown-menu.is-open,
  .dropdown-menu.flex.is-open {
    position: fixed !important;
    top: auto !important;
    bottom: calc(var(--menu-height, 3.25rem) + env(safe-area-inset-bottom, 0px));
    left: 0.75rem !important;
    right: 0.75rem !important;
    width: auto;
    min-width: 0 !important;
    max-width: none !important;
    transform: none !important;
    margin: 0;
    padding: 0.375rem;
    background: var(--ui-chrome-bg) !important;
    border: 1px solid var(--ui-chrome-border) !important;
    border-bottom: none !important;
    border-radius: var(--ui-radius-lg, 0.75rem);
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
    box-shadow: var(--ui-dropdown-shadow);
    color: var(--ui-text, #e2e8f0);
    z-index: 50;
    max-height: 80vh;
    overflow-y: auto;
    overflow-x: hidden;
  }
}