:root {
    --bg: #0e1015;
    --panel: #171a21;
    --panel-2: #1e222b;
    --border: #2a2e38;
    --text: #e8e9ec;
    --muted: #9198a3;
    --blue: #3b82f6;
    --purple: #a855f7;
    --green: #22c55e;
    --red: #ef4444;
    --orange: #f59e0b;
}

* { box-sizing: border-box; }

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

header.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 28px;
    border-bottom: 1px solid var(--border);
}

header.topbar h1 {
    font-size: 18px;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

nav.tabs {
    display: flex;
    gap: 8px;
}

nav.tabs a {
    color: var(--muted);
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
}

nav.tabs a.active, nav.tabs a:hover {
    background: var(--panel-2);
    color: var(--text);
}

main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px 28px 60px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

main.single {
    grid-template-columns: 1fr;
}

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

.panel {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 20px;
}

.panel h2 {
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--muted);
    margin: 0 0 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.field-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    margin-bottom: 14px;
}

.field-row-3 {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 14px;
    margin-bottom: 6px;
}

.field label {
    display: block;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--muted);
    margin-bottom: 6px;
}

.field input, .field select {
    width: 100%;
    background: var(--panel-2);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 10px 12px;
    color: var(--text);
    font-size: 14px;
}

.field input:focus, .field select:focus {
    outline: none;
    border-color: var(--blue);
}

.btn {
    background: var(--blue);
    color: white;
    border: none;
    border-radius: 8px;
    padding: 11px 18px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
}

.btn:hover { opacity: 0.9; }

.btn.secondary {
    background: var(--panel-2);
    border: 1px solid var(--border);
}

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

.stat-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.stat-card {
    background: var(--panel-2);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 14px;
}

.stat-card .label {
    font-size: 11px;
    text-transform: uppercase;
    color: var(--muted);
    letter-spacing: 0.03em;
    margin-bottom: 6px;
}

.stat-card .value {
    font-size: 22px;
    font-weight: 700;
}

.stat-card.total {
    background: linear-gradient(135deg, rgba(239,68,68,0.18), rgba(239,68,68,0.05));
    border-color: rgba(239,68,68,0.4);
    grid-column: span 2;
}

.stat-card.profit {
    background: linear-gradient(135deg, rgba(34,197,94,0.18), rgba(34,197,94,0.05));
    border-color: rgba(34,197,94,0.4);
    grid-column: span 2;
}

.stat-card.loss {
    background: linear-gradient(135deg, rgba(239,68,68,0.18), rgba(239,68,68,0.05));
    border-color: rgba(239,68,68,0.4);
    grid-column: span 2;
}

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

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

th {
    color: var(--muted);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 11px;
    letter-spacing: 0.03em;
}

.pill {
    display: inline-block;
    padding: 3px 9px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
}

.pill.green { background: rgba(34,197,94,0.15); color: var(--green); }
.pill.red { background: rgba(239,68,68,0.15); color: var(--red); }
.pill.muted { background: var(--panel-2); color: var(--muted); }

.list-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
}

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

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

.empty {
    color: var(--muted);
    font-size: 13px;
    text-align: center;
    padding: 30px 0;
}

.divider {
    border: none;
    border-top: 1px solid var(--border);
    margin: 18px 0;
}

.formula-note {
    font-size: 12px;
    color: var(--muted);
    line-height: 1.5;
    margin-top: 10px;
}

.toast {
    position: fixed;
    left: 50%;
    bottom: 28px;
    transform: translateX(-50%);
    background: var(--panel-2);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 14px;
    font-size: 14px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.4);
    z-index: 1000;
    animation: toast-in 0.15s ease-out;
}

@keyframes toast-in {
    from { opacity: 0; transform: translateX(-50%) translateY(10px); }
    to { opacity: 1; transform: translateX(-50%) translateY(0); }
}