:root {
    color-scheme: light;
    --bg: #f4f6f8;
    --surface: #ffffff;
    --surface-strong: #eef2f6;
    --ink: #17202a;
    --muted: #647286;
    --line: #d8dee7;
    --accent: #1f7a66;
    --accent-strong: #145c4d;
    --danger: #b13a3a;
    --warning: #9a6a16;
    --good: #20714f;
    --shadow: 0 20px 60px rgba(24, 35, 50, 0.12);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    background: var(--bg);
    color: var(--ink);
}

button,
input,
select {
    font: inherit;
}

.shell {
    min-height: 100vh;
}

.hidden {
    display: none !important;
}

.login-view {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
}

.login-panel {
    width: min(100%, 420px);
    display: grid;
    gap: 18px;
    padding: 28px;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.eyebrow {
    margin: 0 0 6px;
    color: var(--accent);
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
}

h1,
h2,
p {
    margin: 0;
}

h1 {
    font-size: 1.65rem;
    line-height: 1.15;
}

h2 {
    font-size: 1rem;
    line-height: 1.3;
}

.field {
    display: grid;
    gap: 7px;
}

.field span,
.setting-readout span,
.metric span {
    color: var(--muted);
    font-size: 0.82rem;
    font-weight: 650;
}

.field input,
.field select {
    width: 100%;
    min-height: 42px;
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 9px 11px;
    color: var(--ink);
    background: #fff;
}

.field input:focus,
.field select:focus {
    outline: 3px solid rgba(31, 122, 102, 0.18);
    border-color: var(--accent);
}

.primary-action,
.secondary-action,
.tab {
    min-height: 38px;
    border-radius: 6px;
    padding: 8px 14px;
    border: 1px solid transparent;
    cursor: pointer;
}

.primary-action {
    background: var(--accent);
    color: #fff;
    font-weight: 750;
}

.primary-action:hover {
    background: var(--accent-strong);
}

.secondary-action,
.tab {
    background: var(--surface);
    border-color: var(--line);
    color: var(--ink);
}

.secondary-action:hover,
.tab:hover {
    border-color: var(--accent);
}

.error-message {
    min-height: 20px;
    color: var(--danger);
    font-size: 0.9rem;
}

.error-message.success {
    color: var(--good);
}

.app-view {
    width: min(1180px, 100%);
    margin: 0 auto;
    padding: 24px;
}

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 18px 0 22px;
}

.topbar-actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 10px;
    flex-wrap: wrap;
}

.status-pill {
    display: inline-flex;
    align-items: center;
    min-height: 32px;
    padding: 6px 10px;
    border-radius: 999px;
    color: var(--warning);
    background: #fff6df;
    border: 1px solid #f0d79b;
    font-size: 0.82rem;
    font-weight: 750;
}

.status-pill.connected {
    color: var(--good);
    background: #e8f6ef;
    border-color: #bde0cf;
}

.tabs {
    display: inline-flex;
    gap: 4px;
    padding: 4px;
    background: var(--surface-strong);
    border: 1px solid var(--line);
    border-radius: 8px;
    margin-bottom: 18px;
    max-width: 100%;
    overflow-x: auto;
}

.tab {
    white-space: nowrap;
}

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

.panel {
    display: grid;
    gap: 18px;
}

.metric-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
}

.metric,
.item,
.table-wrap,
.settings-grid {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(24, 35, 50, 0.06);
}

.backtest-controls {
    display: grid;
    grid-template-columns: minmax(160px, 1.1fr) minmax(130px, 0.8fr) minmax(150px, 0.8fr) minmax(130px, 0.8fr) auto;
    gap: 14px;
    align-items: end;
    padding: 16px;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(24, 35, 50, 0.06);
}

.backtest-result {
    gap: 16px;
}

.result-header {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 10px;
}

.result-header div {
    display: grid;
    gap: 3px;
    min-width: 0;
}

.result-header span,
.trade-row span {
    color: var(--muted);
    font-size: 0.78rem;
}

.result-header strong {
    overflow-wrap: anywhere;
}

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

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

.compact-heading {
    margin-top: 2px;
}

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

.trade-row {
    display: grid;
    grid-template-columns: minmax(120px, 0.8fr) minmax(220px, 1.4fr) minmax(120px, 0.8fr);
    gap: 12px;
    align-items: center;
    padding: 10px 12px;
    border: 1px solid var(--line);
    border-radius: 6px;
    background: #fafbfc;
}

.trade-row div {
    display: grid;
    gap: 2px;
    min-width: 0;
}

.pnl-good {
    color: var(--good);
}

.pnl-bad {
    color: var(--danger);
}

.metric {
    min-height: 94px;
    display: grid;
    align-content: center;
    gap: 8px;
    padding: 16px;
}

.metric strong {
    font-size: 1.5rem;
    line-height: 1.1;
}

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

.section-heading span {
    color: var(--muted);
    font-size: 0.86rem;
}

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

table {
    width: 100%;
    border-collapse: collapse;
}

th,
td {
    padding: 12px 14px;
    text-align: left;
    border-bottom: 1px solid var(--line);
    white-space: nowrap;
}

th {
    color: var(--muted);
    font-size: 0.78rem;
    text-transform: uppercase;
}

tr:last-child td {
    border-bottom: 0;
}

.badge {
    display: inline-flex;
    align-items: center;
    min-height: 24px;
    padding: 4px 8px;
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 750;
    border: 1px solid var(--line);
    background: #f7f9fb;
}

.badge.good {
    color: var(--good);
    background: #e8f6ef;
    border-color: #bde0cf;
}

.badge.off {
    color: var(--muted);
    background: #f0f2f5;
}

.item-list {
    display: grid;
    gap: 12px;
}

.item {
    padding: 16px;
    display: grid;
    gap: 10px;
}

.item-header {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    align-items: baseline;
}

.item-title {
    font-weight: 800;
}

.item-meta {
    color: var(--muted);
    font-size: 0.86rem;
}

.kv-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 10px;
}

.kv {
    display: grid;
    gap: 3px;
    min-width: 0;
}

.kv span {
    color: var(--muted);
    font-size: 0.78rem;
}

.kv strong {
    overflow-wrap: anywhere;
}

.alert-text {
    white-space: pre-wrap;
    overflow-wrap: anywhere;
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 0.88rem;
    line-height: 1.45;
}

.ai-review {
    display: grid;
    gap: 12px;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 6px;
    background: #fafbfc;
}

.ai-review ul {
    margin: 8px 0 0;
    padding-left: 18px;
    color: var(--ink);
    line-height: 1.45;
}

.ai-warning {
    color: var(--warning);
    font-size: 0.9rem;
}

.ai-review-button {
    justify-self: start;
}

.settings-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 16px;
    padding: 16px;
    align-items: end;
}

.password-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.coin-settings-grid {
    grid-template-columns: minmax(180px, 1fr) minmax(160px, 0.8fr) auto;
}

.strategy-settings-grid {
    grid-template-columns: repeat(4, minmax(130px, 1fr));
}

.setting-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.toggle-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    min-height: 42px;
}

.toggle-row span {
    color: var(--muted);
    font-size: 0.82rem;
    font-weight: 650;
}

.toggle-row input {
    width: 22px;
    height: 22px;
    accent-color: var(--accent);
    flex: 0 0 auto;
}

.setting-readout {
    display: grid;
    gap: 4px;
    grid-column: 1 / -1;
}

.setting-status {
    grid-column: 1 / -1;
}

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

.coin-settings-list p {
    color: var(--muted);
    font-size: 0.9rem;
}

.coin-settings-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 10px 12px;
    border: 1px solid var(--line);
    border-radius: 6px;
    background: #fafbfc;
}

.coin-settings-row div {
    display: grid;
    gap: 2px;
    min-width: 0;
}

.coin-settings-row span {
    color: var(--muted);
    font-size: 0.82rem;
}

.strategy-toggle-grid {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
}

.strategy-toggle-grid .toggle-row {
    padding: 9px 11px;
    border: 1px solid var(--line);
    border-radius: 6px;
    background: #fafbfc;
}

@media (max-width: 780px) {
    .app-view {
        padding: 16px;
    }

    .topbar,
    .section-heading {
        align-items: flex-start;
        flex-direction: column;
    }

    .topbar-actions {
        justify-content: flex-start;
    }

    .metric-grid,
    .kv-grid,
    .settings-grid,
    .password-grid,
    .coin-settings-grid,
    .strategy-settings-grid,
    .strategy-toggle-grid,
    .backtest-controls,
    .result-header,
    .backtest-metrics,
    .result-grid,
    .trade-row {
        grid-template-columns: 1fr;
    }
}