/* --- Reset & Base --- */
* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --bg: #0f1117;
    --bg-card: #1a1d27;
    --bg-hover: #242836;
    --text: #e4e6f0;
    --text-dim: #8b8fa3;
    --accent: #6366f1;
    --green: #22c55e;
    --red: #ef4444;
    --yellow: #eab308;
    --border: #2a2d3a;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
}

/* --- Navbar --- */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 2rem;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
}

.nav-brand {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--accent);
}

.nav-links { display: flex; gap: 1.5rem; align-items: center; }
.nav-links a {
    color: var(--text-dim);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s;
}
.nav-links a:hover, .nav-links a.active { color: var(--text); }

.btn-login {
    background: var(--accent) !important;
    color: white !important;
    padding: 0.4rem 1rem;
    border-radius: 6px;
}

.status-badge {
    font-size: 0.75rem;
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-weight: 600;
}
.status-badge.connected { background: rgba(34,197,94,0.15); color: var(--green); }

/* --- Container --- */
.container { max-width: 1200px; margin: 0 auto; padding: 1.5rem; }

/* --- Flash Messages --- */
.flash-messages { max-width: 1200px; margin: 0.5rem auto; padding: 0 1.5rem; }
.flash {
    padding: 0.75rem 1rem;
    border-radius: 8px;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}
.flash.success { background: rgba(34,197,94,0.1); color: var(--green); border: 1px solid rgba(34,197,94,0.2); }
.flash.error { background: rgba(239,68,68,0.1); color: var(--red); border: 1px solid rgba(239,68,68,0.2); }
.flash.warning { background: rgba(234,179,8,0.1); color: var(--yellow); border: 1px solid rgba(234,179,8,0.2); }

/* --- Status Bar --- */
.status-bar {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.mode-badge {
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.3rem 0.8rem;
    border-radius: 4px;
    letter-spacing: 0.05em;
}
.mode-badge.paper { background: rgba(234,179,8,0.15); color: var(--yellow); }
.mode-badge.live { background: rgba(239,68,68,0.15); color: var(--red); }

.market-status { font-size: 0.85rem; color: var(--text-dim); }
.market-status.open { color: var(--green); }
.market-status.closed { color: var(--red); }

/* --- Cards Grid --- */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.25rem;
}

.card-label { font-size: 0.8rem; color: var(--text-dim); margin-bottom: 0.25rem; }
.card-value { font-size: 1.5rem; font-weight: 700; }
.card-sub { font-size: 0.85rem; margin-top: 0.25rem; }

/* --- Section --- */
.section {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.25rem;
    margin-bottom: 1.5rem;
}
.section h2 { font-size: 1.1rem; margin-bottom: 1rem; }

/* --- Two Column --- */
.two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}
@media (max-width: 768px) {
    .two-col { grid-template-columns: 1fr; }
}

/* --- Data Table --- */
.data-table {
    width: 100%;
    border-collapse: collapse;
}
.data-table th, .data-table td {
    padding: 0.6rem 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
    font-size: 0.85rem;
}
.data-table th { color: var(--text-dim); font-weight: 500; }
.data-table.full-width { width: 100%; }

/* --- Colors --- */
.positive { color: var(--green); }
.negative { color: var(--red); }

/* --- Signals --- */
.signal-list { display: flex; flex-direction: column; gap: 0.75rem; max-height: 500px; overflow-y: auto; }

.signal-item {
    padding: 0.75rem;
    border-radius: 8px;
    background: var(--bg);
    border-left: 3px solid var(--border);
}
.signal-item.buy { border-left-color: var(--green); }
.signal-item.sell { border-left-color: var(--red); }

.signal-header { display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap; }

.signal-badge {
    font-size: 0.7rem;
    font-weight: 700;
    padding: 0.15rem 0.5rem;
    border-radius: 4px;
}
.signal-badge.buy { background: rgba(34,197,94,0.15); color: var(--green); }
.signal-badge.sell { background: rgba(239,68,68,0.15); color: var(--red); }
.signal-badge.hold { background: rgba(139,143,163,0.15); color: var(--text-dim); }

.sentiment { font-size: 0.8rem; color: var(--text-dim); margin-left: auto; }
.signal-headline { font-size: 0.8rem; color: var(--text-dim); margin-top: 0.35rem; }
.signal-time { font-size: 0.7rem; color: var(--text-dim); }

/* --- Chart --- */
.chart-container { height: 250px; }

/* --- Buttons --- */
.btn {
    background: var(--accent);
    color: white;
    border: none;
    padding: 0.5rem 1.25rem;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 500;
    transition: opacity 0.2s;
}
.btn:hover { opacity: 0.85; }
.btn-sm { padding: 0.3rem 0.75rem; font-size: 0.8rem; }
.btn-danger { background: var(--red); }
.btn-warning { background: var(--yellow); color: #000; }

/* --- Trade badges --- */
.badge {
    font-size: 0.7rem;
    font-weight: 700;
    padding: 0.15rem 0.5rem;
    border-radius: 4px;
}
.badge.buy { background: rgba(34,197,94,0.15); color: var(--green); }
.badge.sell { background: rgba(239,68,68,0.15); color: var(--red); }

.status-pill {
    font-size: 0.7rem;
    padding: 0.15rem 0.5rem;
    border-radius: 4px;
}
.status-pill.executed, .status-pill.paper { background: rgba(34,197,94,0.1); color: var(--green); }
.status-pill.pending { background: rgba(234,179,8,0.1); color: var(--yellow); }
.status-pill.failed { background: rgba(239,68,68,0.1); color: var(--red); }

.order-id { font-family: monospace; font-size: 0.75rem; color: var(--text-dim); }

/* --- Forms --- */
label { display: block; margin-bottom: 0.4rem; font-size: 0.85rem; color: var(--text-dim); }
.input-full {
    width: 100%;
    padding: 0.6rem;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    font-family: monospace;
    font-size: 0.85rem;
    margin-bottom: 0.75rem;
    resize: vertical;
}

.mode-display { margin-top: 0.5rem; }
.mode-display p { margin-bottom: 0.5rem; font-size: 0.9rem; }
.warning { color: var(--red); }
.hint { font-size: 0.8rem; color: var(--text-dim); margin-top: 0.75rem; }
.hint code { background: var(--bg); padding: 0.1rem 0.3rem; border-radius: 4px; }

/* --- Empty State --- */
.empty-state { text-align: center; color: var(--text-dim); padding: 2rem; font-size: 0.9rem; }