:root {
  color-scheme: light;
  --bg: #f4f6f8;
  --surface: #ffffff;
  --surface-2: #eef2f5;
  --border: #d5dde5;
  --text: #17202a;
  --muted: #66727f;
  --accent: #176b87;
  --accent-strong: #0f556d;
  --button-blue: #ea580c;
  --button-blue-strong: #c2410c;
  --disabled-bg: #eef2f5;
  --disabled-border: #d5dde5;
  --disabled-text: #8a96a3;
  --green: #16834f;
  --red: #c33d3d;
  --amber: #9b6a10;
  --grid: #e4e9ee;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
}

button,
input,
select {
  font: inherit;
}

button {
  border: 1px solid var(--button-blue);
  border-radius: 6px;
  background: var(--button-blue);
  color: #ffffff;
  min-height: 38px;
  padding: 0 12px;
  cursor: pointer;
}

button:hover:not(:disabled) {
  background: var(--button-blue-strong);
  border-color: var(--button-blue-strong);
}

button:disabled {
  background: var(--disabled-bg);
  border-color: var(--disabled-border);
  color: var(--disabled-text);
  cursor: not-allowed;
  opacity: 1;
}

.app-shell {
  width: 100%;
  margin: 0 auto;
  padding: 10px 10px 24px;
}

.topbar {
  display: grid;
  grid-template-columns: minmax(250px, 0.7fr) minmax(640px, 2fr);
  gap: 10px;
  align-items: stretch;
  margin-bottom: 12px;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: 24px;
  font-weight: 760;
}

h2 {
  font-size: 15px;
  font-weight: 720;
}

.topbar > div,
.chart-panel,
.control-panel,
.trade-log {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.topbar > div:first-child {
  padding: 14px 16px;
}

.top-actions {
  display: flex;
  gap: 8px;
  margin-top: 12px;
}

.top-actions button {
  min-width: 94px;
}

.practice-button {
  background: #d97706;
  border-color: #d97706;
  color: #ffffff;
}

.practice-button:hover:not(:disabled) {
  background: #b85f05;
  border-color: #b85f05;
}

.replay-toolbar {
  display: grid;
  grid-template-columns: minmax(150px, 0.45fr) minmax(420px, 1.55fr);
  gap: 10px;
  align-items: center;
  padding: 12px;
}

.time-card {
  min-width: 0;
}

.time-card span,
label,
dt,
.chart-header span,
.section-title span {
  display: block;
  color: var(--muted);
  font-size: 12px;
}

.time-card strong {
  display: block;
  margin-top: 4px;
  font-size: 17px;
}

.time-card small {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-size: 12px;
}

.top-replay-actions {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) auto auto;
  gap: 8px;
  align-items: end;
}

.top-replay-actions label {
  display: none;
}

.message {
  margin-bottom: 12px;
  border: 1px solid #e0c278;
  background: #fff7df;
  color: #59420d;
  border-radius: 6px;
  padding: 10px 12px;
  font-size: 14px;
}

.message.error {
  border-color: #e2a2a2;
  background: #fff0f0;
  color: #742626;
}

.login-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 16px;
}

.login-shell {
  width: min(100%, 380px);
}

.login-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 18px;
}

.login-form {
  margin-top: 16px;
}

.login-message {
  margin-top: 12px;
  color: var(--muted);
  font-size: 13px;
}

.login-message.error {
  color: var(--red);
}

.login-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.button-spinner {
  display: none;
  width: 16px;
  height: 16px;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.login-button.is-loading .button-spinner {
  display: inline-block;
}

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

.workspace {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 250px;
  gap: 10px;
}

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

.chart-panel {
  min-width: 0;
  overflow: hidden;
}

.chart-header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}

.chart-header h2 {
  flex: 0 0 auto;
}

.chart-header span {
  flex: 1 1 auto;
  text-align: right;
  font-size: 11px;
  font-weight: 600;
  line-height: 1.35;
  white-space: normal;
  overflow-wrap: anywhere;
}

canvas {
  display: block;
  width: 100%;
  height: 600px;
  background: #fbfcfd;
}

canvas.marking {
  cursor: crosshair;
}

.control-panel {
  align-self: start;
  overflow: hidden;
}

.panel-section {
  padding: 10px;
  border-bottom: 1px solid var(--border);
}

.panel-section:last-child {
  border-bottom: 0;
}

.panel-section h2 {
  margin-bottom: 12px;
}

label {
  margin: 10px 0 6px;
}

select,
input {
  width: 100%;
  min-height: 38px;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0 10px;
  background: var(--surface);
  color: var(--text);
}

.button-row,
.mark-row,
.inline-control,
.segmented {
  display: grid;
  gap: 8px;
}

.button-row {
  grid-template-columns: 1fr 1fr;
}

.mark-row {
  grid-template-columns: 1fr 1fr 1fr;
}

.mark-row button.selected {
  background: var(--amber);
  border-color: var(--amber);
  color: #ffffff;
}

.level-readout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin: 8px 0 12px;
  color: var(--muted);
  font-size: 12px;
}

.level-readout strong {
  color: var(--text);
}

.capital-required {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  margin: 8px 0 12px;
  color: var(--muted);
  font-size: 12px;
}

.capital-required strong {
  color: var(--text);
}

.inline-control {
  grid-template-columns: minmax(0, 1fr) auto;
}

.segmented {
  grid-template-columns: 1fr 1fr;
}

.segmented button.selected {
  background: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
}

.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
}

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

.buy {
  background: var(--green);
  border-color: var(--green);
  color: #ffffff;
}

.sell {
  background: var(--red);
  border-color: var(--red);
  color: #ffffff;
}

button:disabled,
.mark-row button.selected:disabled,
.segmented button.selected:disabled,
.primary:disabled,
.practice-button:disabled,
.buy:disabled,
.sell:disabled {
  background: var(--disabled-bg);
  border-color: var(--disabled-border);
  color: var(--disabled-text);
}

.full-width {
  width: 100%;
  margin-top: 10px;
}

.metrics dl {
  margin: 0;
}

.metrics div {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 0;
  border-bottom: 1px solid var(--surface-2);
}

.metrics div:last-child {
  border-bottom: 0;
}

dd {
  margin: 0;
  font-weight: 720;
  text-align: right;
}

.trade-log {
  margin-top: 12px;
  overflow: hidden;
}

.section-title {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
}

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

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

th,
td {
  padding: 9px 10px;
  border-bottom: 1px solid var(--surface-2);
  text-align: right;
  white-space: nowrap;
}

th {
  color: var(--muted);
  font-weight: 680;
  background: #fafbfc;
}

th:nth-child(2),
th:nth-child(3),
th:nth-child(4),
th:nth-child(5),
td:nth-child(2),
td:nth-child(3),
td:nth-child(4),
td:nth-child(5) {
  text-align: left;
}

.empty {
  color: var(--muted);
  text-align: center;
  padding: 18px;
}

.pnl-positive {
  color: var(--green);
}

.pnl-negative {
  color: var(--red);
}

@media (max-width: 1180px) {
  .topbar,
  .workspace,
  .charts {
    grid-template-columns: 1fr;
  }

  .replay-toolbar {
    grid-template-columns: 1fr;
  }

  .top-replay-actions {
    grid-template-columns: minmax(220px, 1fr) auto auto;
  }

  canvas {
    height: 380px;
  }
}

@media (max-width: 640px) {
  .app-shell {
    width: calc(100vw - 16px);
    padding-top: 8px;
  }

  .top-replay-actions {
    grid-template-columns: 1fr auto;
  }

  .top-replay-actions select {
    grid-column: 1 / -1;
  }
}