:root {
  color-scheme: light;
  --bg: #eef3f1;
  --surface: #ffffff;
  --surface-soft: #f6faf9;
  --text: #17211f;
  --muted: #65736f;
  --line: #d8e2df;
  --primary: #0f766e;
  --primary-dark: #0b5f59;
  --danger: #b42318;
  --profit: #b42318;
  --loss: #067647;
  --shadow: 0 10px 30px rgba(15, 31, 28, 0.08);
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0d1413;
  --surface: #141f1d;
  --surface-soft: #1b2a27;
  --text: #edf5f2;
  --muted: #9caeaa;
  --line: #2c3e3a;
  --primary: #2dd4bf;
  --primary-dark: #14b8a6;
  --danger: #ef4444;
  --profit: #f87171;
  --loss: #34d399;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.34);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  border: 0;
  border-radius: 8px;
  padding: 10px 14px;
  cursor: pointer;
  background: #e4ece9;
  color: var(--text);
}

:root[data-theme="dark"] button {
  background: #22332f;
}

button.primary,
.icon-button.primary {
  background: var(--primary);
  color: #fff;
}

button.primary:hover,
.icon-button.primary:hover {
  background: var(--primary-dark);
}

button.ghost {
  background: transparent;
  color: var(--primary);
  padding: 8px 10px;
}

button.danger {
  color: #fff;
  background: var(--danger);
}

.app-shell {
  width: min(1180px, 100%);
  margin: 0 auto;
  padding: 14px;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 5;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  padding: 12px 0;
  background: linear-gradient(180deg, var(--bg) 75%, rgba(238, 243, 241, 0));
}

:root[data-theme="dark"] .topbar {
  background: linear-gradient(180deg, var(--bg) 75%, rgba(13, 20, 19, 0));
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: 22px;
}

h2 {
  font-size: 18px;
}

.topbar p,
.hint {
  margin-top: 4px;
  color: var(--muted);
  font-size: 13px;
}

.top-actions,
.button-row {
  display: flex;
  gap: 8px;
  align-items: center;
}

.tabs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin: 8px 0 14px;
}

.tab {
  background: var(--surface);
  border: 1px solid var(--line);
}

.tab.active {
  color: #fff;
  background: var(--primary);
  border-color: var(--primary);
}

.view {
  display: none;
}

.view.active {
  display: grid;
  gap: 14px;
}

.panel,
.metric-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.panel {
  padding: 14px;
}

.section-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.metric-card {
  padding: 14px;
}

.metric-card span {
  display: block;
  color: var(--muted);
  font-size: 13px;
}

.metric-card strong {
  display: block;
  margin-top: 8px;
  font-size: clamp(20px, 4vw, 28px);
}

.profit {
  color: var(--profit);
}

.loss {
  color: var(--loss);
}

label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
}

input,
select,
textarea {
  width: 100%;
  min-height: 40px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--text);
  padding: 9px 10px;
}

:root[data-theme="dark"] input,
:root[data-theme="dark"] select,
:root[data-theme="dark"] textarea {
  background: #0f1917;
}

textarea {
  min-height: 180px;
  resize: vertical;
}

.settings-line {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  align-items: end;
}

.settings-stack {
  display: grid;
  gap: 12px;
  margin-top: 12px;
}

.trade-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.wide {
  grid-column: 1 / -1;
}

.table-scroll {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 760px;
}

th,
td {
  padding: 10px 8px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  white-space: nowrap;
}

th {
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
  background: var(--surface-soft);
}

.compact-list {
  display: grid;
  gap: 8px;
}

.compact-item {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-soft);
}

.empty {
  color: var(--muted);
}

.holding-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 10px;
}

.holding-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-soft);
  padding: 12px;
  display: grid;
  gap: 10px;
}

.holding-title {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
}

.holding-title strong {
  display: block;
}

.badge {
  display: inline-block;
  border-radius: 999px;
  padding: 4px 8px;
  background: #ddebe8;
  color: var(--primary-dark);
  font-size: 12px;
}

:root[data-theme="dark"] .badge {
  background: #123c36;
  color: #8ff5e8;
}

.kv-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}

.kv {
  display: grid;
  gap: 4px;
}

.kv span {
  color: var(--muted);
  font-size: 12px;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 22px;
  transform: translateX(-50%) translateY(20px);
  opacity: 0;
  max-width: min(92vw, 420px);
  padding: 11px 14px;
  border-radius: 8px;
  color: #fff;
  background: rgba(23, 33, 31, 0.92);
  transition: opacity 0.2s ease, transform 0.2s ease;
  pointer-events: none;
}

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

@media (min-width: 860px) {
  .app-shell {
    padding: 20px;
  }

  .metric-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .trade-form {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .settings-line {
    grid-template-columns: 280px auto;
  }
}

@media (max-width: 520px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .top-actions,
  .button-row {
    width: 100%;
  }

  .top-actions button,
  .button-row button {
    flex: 1;
  }

  .trade-form,
  .settings-line {
    grid-template-columns: 1fr;
  }
}