:root {
  --radius: 10px;
  --font: "SF Pro Text", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --mono: "SF Mono", "JetBrains Mono", ui-monospace, monospace;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  font-size: 15px;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  background-image: var(--bg-gradient);
}

.app {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 3rem;
}

.header {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.header-end {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 0.75rem 1rem;
}

.settings-menu {
  position: relative;
}

.settings-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  white-space: nowrap;
}

.settings-icon {
  font-size: 1rem;
  line-height: 1;
  opacity: 0.9;
}

.settings-panel {
  position: absolute;
  right: 0;
  top: calc(100% + 0.35rem);
  z-index: 50;
  min-width: 11.5rem;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow-dropdown);
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.settings-panel[hidden] {
  display: none !important;
}

.settings-panel.is-open {
  display: flex;
}

.settings-field {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  margin: 0;
}

.settings-field-label {
  color: var(--muted);
  font-size: 0.82rem;
}

.settings-field select {
  min-width: 100%;
  padding: 0.45rem 0.55rem;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: var(--surface-2);
  color: var(--text);
  font: inherit;
  font-size: 0.9rem;
}

.settings-field select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--input-focus-ring);
}

.brand {
  display: flex;
  gap: 0.75rem;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
  font-size: 1.1rem;
}

.brand h1 {
  margin: 0;
  font-size: 1.35rem;
  font-weight: 600;
}

.market-hint {
  align-self: center;
  color: var(--muted);
  font-size: 0.85rem;
  margin: 0;
}

.contract-meta {
  color: var(--accent);
}

.muted-inline {
  color: var(--muted);
  font-weight: 400;
  font-size: 0.85em;
}

.lot-unit-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.lot-unit-row input {
  flex: 1;
  min-width: 0;
}

.lot-unit-display {
  flex-shrink: 0;
  padding: 0.35rem 0.55rem;
  border-radius: 6px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--accent);
  font-size: 0.85rem;
  white-space: nowrap;
}

.subtitle {
  margin: 0.15rem 0 0;
  font-size: 0.85rem;
  color: var(--muted);
}

.tabs {
  display: flex;
  gap: 0.35rem;
  padding: 0.25rem;
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.tab-btn {
  padding: 0.45rem 1rem;
  border: none;
  border-radius: 7px;
  background: transparent;
  color: var(--muted);
  font: inherit;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.tab-btn:hover {
  color: var(--text);
}

.tab-btn.active {
  background: var(--accent);
  color: #fff;
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
}

.add-position-card h2 {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
}

.add-position-intro {
  margin: 0 0 1rem;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.55;
}

.add-position-layout {
  display: grid;
  grid-template-columns: 1fr minmax(280px, 340px);
  gap: 1rem;
  align-items: start;
}

@media (max-width: 900px) {
  .add-position-layout {
    grid-template-columns: 1fr;
  }
}

.add-pos-section-title,
.add-pos-section-label {
  margin: 0 0 0.5rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.add-pos-section-title {
  grid-column: 1 / -1;
}

.workspace-toolbar.is-hidden {
  display: none;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1rem;
  margin-bottom: 1rem;
}

.toolbar-actions {
  margin-left: auto;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.hint {
  font-size: 0.85rem;
  color: var(--muted);
}

.layout {
  display: grid;
  grid-template-columns: 1fr minmax(280px, 340px);
  gap: 1rem;
  align-items: start;
}

@media (max-width: 900px) {
  .layout {
    grid-template-columns: 1fr;
  }
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
}

.card h2 {
  margin: 0 0 0.75rem;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.card h2 .live-hint {
  text-transform: none;
  letter-spacing: 0;
  font-weight: 400;
  font-size: 0.72rem;
  color: var(--success);
}

.card h2:not(:first-child) {
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.form-section-divider {
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem 1rem;
}

@media (max-width: 560px) {
  .grid-2 {
    grid-template-columns: 1fr;
  }
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.field[hidden],
[data-stop-price][hidden],
[data-stop-percent][hidden] {
  display: none !important;
}

.field.full {
  grid-column: 1 / -1;
}

.field span,
.field .field-label {
  font-size: 0.82rem;
  color: var(--muted);
}

.symbol-combo-wrap {
  position: relative;
  z-index: 1;
}

.symbol-combo-wrap:has(.symbol-suggestions.is-open) {
  z-index: 100;
}

.field input,
.field select,
.field textarea {
  padding: 0.5rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: var(--surface-2);
  color: var(--text);
  font: inherit;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--input-focus-ring);
}

.field-hint {
  font-size: 0.75rem;
  color: var(--muted);
}

.field-inline {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
}

.field-inline select {
  padding: 0.4rem 0.6rem;
  border-radius: 7px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  font: inherit;
}

.import-merge {
  font-size: 0.85rem;
  color: var(--muted);
  cursor: pointer;
}

.btn {
  padding: 0.45rem 0.9rem;
  border: none;
  border-radius: 7px;
  background: var(--accent);
  color: #fff;
  font: inherit;
  font-size: 0.9rem;
  cursor: pointer;
  transition: background 0.15s;
}

.btn:hover {
  background: var(--accent-dim);
}

.btn-ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}

.btn-ghost:hover {
  background: var(--surface-2);
}

.btn-sm {
  padding: 0.3rem 0.6rem;
  font-size: 0.8rem;
}

.btn-danger {
  color: var(--danger);
  border-color: var(--alert-error-border);
}

.btn-danger:hover {
  background: var(--alert-error-bg);
}

.results {
  margin: 0;
}

.result-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--border);
}

.result-row:last-child {
  border-bottom: none;
}

.result-row dt {
  margin: 0;
  font-size: 0.85rem;
  color: var(--muted);
}

.result-row dd {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.95rem;
  text-align: right;
}

.result-row.highlight dd {
  font-size: 1.25rem;
  color: var(--success);
  font-weight: 600;
}

.alerts {
  margin-bottom: 0.75rem;
}

.alert {
  padding: 0.45rem 0.65rem;
  border-radius: 6px;
  font-size: 0.85rem;
  margin-bottom: 0.35rem;
}

.alert-error {
  background: var(--alert-error-bg);
  color: var(--danger);
  border: 1px solid var(--alert-error-border);
}

.results-card.has-validation-error {
  border-color: var(--invalid-border);
  box-shadow: 0 0 0 1px var(--input-focus-ring);
  background: linear-gradient(
    180deg,
    var(--results-error-bg) 0%,
    var(--surface) 120px
  );
}

/* 左侧缺失/错误：仅输入框本身淡红，不扩大外层范围 */
#calc-form input.is-invalid,
#calc-form select.is-invalid,
#add-position-form input.is-invalid,
#add-position-form select.is-invalid,
.form-card input.is-invalid,
.form-card select.is-invalid,
.symbol-input-main.is-invalid {
  border: 1px solid var(--invalid-border) !important;
  background-color: var(--invalid-bg) !important;
  background-image: none !important;
  box-shadow: none !important;
}

.field-error-msg {
  display: block;
  margin-top: 0.25rem;
  font-size: 0.78rem;
  color: var(--danger);
}

.alert-warn {
  background: var(--alert-warn-bg);
  color: var(--warn);
  border: 1px solid var(--alert-warn-border);
}

.disclaimer {
  margin: 1rem 0 0;
  font-size: 0.75rem;
  color: var(--muted);
}

.tag-api {
  font-size: 0.7rem;
  padding: 0.1rem 0.35rem;
  margin-left: 0.25rem;
  border-radius: 4px;
  background: var(--tag-api-bg);
  color: var(--accent);
  font-weight: 500;
}

.symbol-combo {
  position: relative;
}

.symbol-combo-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.symbol-combo-row .symbol-input-main {
  flex: 1;
  min-width: 0;
}

.symbol-contract-name {
  flex-shrink: 0;
  max-width: 9rem;
  padding: 0.35rem 0.55rem;
  border-radius: 6px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 0.88rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.symbol-contract-name:empty,
.symbol-contract-name[hidden] {
  display: none;
}

.form-card {
  overflow: visible;
}

.symbol-suggestions {
  display: none;
  margin: 0;
  padding: 0.25rem 0;
  list-style: none;
  max-height: 280px;
  overflow-y: auto;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 7px;
  box-shadow: var(--shadow-dropdown);
}

.symbol-suggestions.is-open {
  display: block;
}

.symbol-suggestions[hidden]:not(.is-open) {
  display: none !important;
}

.symbol-suggestions li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 0.65rem;
  cursor: pointer;
  font-size: 0.88rem;
}

.symbol-suggestions li:hover,
.symbol-suggestions li.active {
  background: var(--suggestion-hover);
}

.symbol-suggestions .sym {
  font-family: var(--mono);
  font-weight: 500;
}

.symbol-suggestions .sym-meta {
  font-size: 0.78rem;
  color: var(--muted);
}

.symbol-suggestions .suggestion-empty {
  color: var(--muted);
  cursor: default;
  justify-content: center;
  flex-direction: column;
  text-align: center;
  line-height: 1.4;
}

.symbol-suggestions .suggestion-error {
  color: var(--danger);
}

.symbol-suggestions .btn-retry {
  margin-top: 0.4rem;
  padding: 0.25rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: 5px;
  background: var(--surface);
  color: var(--accent);
  font: inherit;
  font-size: 0.8rem;
  cursor: pointer;
}

.symbol-suggestions .btn-retry:hover {
  background: var(--surface-2);
}

.field-hint.status-error {
  color: var(--danger);
}

.field-static {
  margin: 0;
  padding: 0.5rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: var(--surface-2);
  font-size: 0.9rem;
  color: var(--text);
}

.entry-price-row {
  display: flex;
  gap: 0.5rem;
  align-items: stretch;
}

.entry-price-row input {
  flex: 1;
  min-width: 0;
}

.entry-price-row .btn {
  flex-shrink: 0;
  align-self: stretch;
  white-space: nowrap;
}

.entry-price-row .btn:disabled {
  opacity: 0.55;
  cursor: wait;
}

.field-entry-price .field-hint.price-live {
  color: var(--success);
}

.template-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
}

.template-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
}

.template-card header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.template-card h3 {
  margin: 0;
  font-size: 1rem;
}

.badge {
  font-size: 0.7rem;
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  background: var(--surface-2);
  color: var(--accent);
  border: 1px solid var(--border);
}

.template-card .desc {
  margin: 0.5rem 0;
  font-size: 0.85rem;
  color: var(--muted);
}

.template-card .meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.35rem 0.75rem;
  margin: 0 0 0.75rem;
  font-size: 0.8rem;
}

.template-card .meta dt {
  color: var(--muted);
}

.template-card .meta dd {
  margin: 0;
  font-family: var(--mono);
}

.card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s;
}

.modal.open {
  pointer-events: auto;
  opacity: 1;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: var(--overlay);
}

.modal-box {
  position: relative;
  width: 100%;
  max-width: 400px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  box-shadow: var(--shadow-modal);
}

.modal-wide {
  max-width: 520px;
}

.modal h3 {
  margin: 0 0 1rem;
}

.modal-hint {
  font-size: 0.8rem;
  color: var(--muted);
  margin: 0 0 1rem;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  margin-top: 1rem;
}

.toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%) translateY(1rem);
  padding: 0.55rem 1rem;
  border-radius: 8px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  font-size: 0.9rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s, transform 0.2s;
  z-index: 200;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.toast-error {
  border-color: var(--danger);
  color: var(--danger);
}

.toast-ok {
  border-color: var(--success);
}

.site-footer {
  margin-top: 1.2rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--muted);
  font-size: 0.82rem;
}

.footer-copy,
.footer-stats {
  margin: 0;
}

.footer-stats {
  margin-top: 0.25rem;
}

.footer-stats[hidden] {
  display: none !important;
}

.footer-stats strong {
  color: var(--text);
  font-family: var(--mono);
  margin: 0 0.25rem 0 0.35rem;
}

.footer-sep {
  margin: 0 0.35rem;
  opacity: 0.7;
}