:root {
  --bg: #0A0F1A;
  --panel: #0F1626;
  --panel-2: #131B2E;
  --border: #202B40;
  --border-soft: #1A2436;
  --text: #E7ECF3;
  --text-dim: #8B97AC;
  --text-faint: #57647A;
  --accent: #2FD1C6;
  --accent-dim: #1B4F4C;
  --profit: #3ECF8E;
  --loss: #F2545B;
  --amber: #E0A63E;
  --radius: 6px;
  --font-ui: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-mono: 'Consolas', 'SFMono-Regular', monospace;
}
* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body { background: var(--bg); color: var(--text); font-family: var(--font-ui); font-size: 14px; }
a { color: inherit; }

/* ---------- layout shell ---------- */
.app-shell { display: flex; min-height: 100vh; }
.sidebar { width: 220px; flex-shrink: 0; background: var(--panel); border-right: 1px solid var(--border-soft); padding: 18px 0; position: sticky; top: 0; height: 100vh; }
.brand { display: flex; align-items: center; gap: 9px; padding: 0 20px 20px; }
.brand .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 8px rgba(47,209,198,.7); }
.brand span { font-family: var(--font-mono); font-size: 13px; }
.nav-group { padding: 6px 10px; }
.nav-label { font-size: 10.5px; color: var(--text-faint); padding: 14px 10px 6px; letter-spacing: .04em; }
.nav-item { display: flex; align-items: center; gap: 10px; padding: 8px 10px; border-radius: var(--radius); color: var(--text-dim); font-size: 13.5px; text-decoration: none; margin-bottom: 2px; border: 1px solid transparent; }
.nav-item:hover { background: var(--panel-2); color: var(--text); }
    .nav-item.active {
        background: rgba(47,209,198,0.09);
        color: #00ffee;
        border-color: rgba(47,209,198,0.25);
    }
.sidebar-foot { margin-top: auto; padding: 14px 20px 4px; border-top: 1px solid var(--border-soft); }
.who { display: flex; align-items: center; gap: 9px; font-size: 12.5px; }
.avatar {
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background: linear-gradient(135deg, #00ffee, #3f0000);
}
.logout-btn { background: transparent; border: none; color: var(--text-faint); font-size: 11.5px; cursor: pointer; margin-top: 8px; padding: 0; }
.logout-btn:hover { color: var(--loss); }

.main { flex: 1; min-width: 0; }
.topbar { display: flex; align-items: center; justify-content: space-between; padding: 14px 26px; border-bottom: 1px solid var(--border-soft); }
.topbar h2 { margin: 0; font-size: 16px; }
.view { padding: 22px 26px 60px; }

/* ---------- flash ---------- */
.flash { background: rgba(47,209,198,.08); border: 1px solid rgba(47,209,198,.3); color: var(--accent); padding: 10px 14px; border-radius: var(--radius); margin-bottom: 16px; font-size: 13px; }
.flash.error { background: rgba(242,84,91,.08); border-color: rgba(242,84,91,.3); color: var(--loss); }

/* ---------- stat cards ---------- */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(168px,1fr)); gap: 12px; margin-bottom: 22px; }
.stat-card { background: var(--panel); border: 1px solid var(--border-soft); border-radius: 8px; padding: 14px 16px; }
.stat-card .lbl { font-size: 11.5px; color: var(--text-faint); margin-bottom: 8px; }
.stat-card .val { font-family: var(--font-mono); font-size: 22px; font-weight: 600; }
.up { color: var(--profit); } .down { color: var(--loss); }

/* ---------- cards / tables ---------- */
.card { background: var(--panel); border: 1px solid var(--border-soft); border-radius: 8px; overflow: hidden; margin-bottom: 16px; }
.card-head { display: flex; align-items: center; justify-content: space-between; padding: 14px 16px; border-bottom: 1px solid var(--border-soft); }
.card-head h3 { margin: 0; font-size: 13.5px; }
.card-body { padding: 14px 16px; }
.table-scroll { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13px; min-width: 640px; }
thead th { text-align: left; font-weight: 500; color: var(--text-faint); font-size: 11px; padding: 9px 14px; border-bottom: 1px solid var(--border-soft); background: var(--panel-2); white-space: nowrap; }
tbody td { padding: 11px 14px; border-bottom: 1px solid var(--border-soft); white-space: nowrap; }
tbody tr:last-child td { border-bottom: none; }
td.mono, th.mono { font-family: var(--font-mono); }
.num { text-align: right; font-family: var(--font-mono); }

.badge { display: inline-flex; align-items: center; gap: 5px; font-size: 11px; padding: 3px 8px; border-radius: 999px; font-family: var(--font-mono); }
.badge.on { background: rgba(62,207,142,0.1); color: var(--profit); border: 1px solid rgba(62,207,142,.3); }
.badge.off { background: rgba(139,151,172,0.1); color: var(--text-dim); border: 1px solid var(--border); }
.badge.buy { background: rgba(62,207,142,0.1); color: var(--profit); border: 1px solid rgba(62,207,142,.3); }
.badge.sell { background: rgba(242,84,91,0.1); color: var(--loss); border: 1px solid rgba(242,84,91,.3); }
.pl-pos { color: var(--profit); font-family: var(--font-mono); }
.pl-neg { color: var(--loss); font-family: var(--font-mono); }

/* ---------- forms ---------- */
.form-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px,1fr)); gap: 14px; }
.f-group label { display: block; font-size: 11.5px; color: var(--text-dim); margin-bottom: 6px; }
.f-group input[type=text], .f-group input[type=number], .f-group input[type=password], .f-group select {
  width: 100%; background: #0B1220; border: 1px solid var(--border); color: var(--text);
  padding: 8px 10px; border-radius: var(--radius); font-family: var(--font-mono); font-size: 13px;
}
.f-group input:focus, .f-group select:focus { outline: none; border-color: var(--accent); }
.checkbox-row { display: flex; align-items: center; gap: 8px; }
.checkbox-row input { width: 16px; height: 16px; }
.validation-summary-errors, .text-danger { color: var(--loss); font-size: 12.5px; }
.validation-summary-errors ul { margin: 4px 0 0; padding-left: 18px; }

/* ---------- buttons ---------- */
.btn { display: inline-block; border-radius: var(--radius); padding: 8px 14px; font-size: 13px; font-weight: 600; cursor: pointer; border: none; text-decoration: none; }
.btn-accent { background: var(--accent); color: #06110F; }
.btn-accent:hover { filter: brightness(1.08); }
.btn-ghost { background: transparent; color: var(--text-dim); border: 1px solid var(--border); }
.btn-ghost:hover { color: var(--text); border-color: #33415a; }
.btn-danger { background: var(--loss); color: #fff; }
.btn-sm { padding: 5px 10px; font-size: 11.5px; }
.toolbar { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; gap: 12px; flex-wrap: wrap; }
.tabs { display: flex; gap: 8px; }
.tab-link { padding: 7px 12px; border-radius: var(--radius); border: 1px solid var(--border); color: var(--text-dim); font-size: 12.5px; text-decoration: none; }
.tab-link.active { border-color: var(--accent); color: var(--accent); background: rgba(47,209,198,.07); }

/* ---------- login ---------- */
.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; }
.login-card { width: 100%; max-width: 380px; background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 36px 32px 28px; }
.login-card h1 { font-size: 21px; margin: 0 0 20px; }

/* ---------- pagination ---------- */
.pagination { display: flex; gap: 6px; margin-top: 14px; }
.pagination a { padding: 6px 11px; border: 1px solid var(--border); border-radius: var(--radius); color: var(--text-dim); text-decoration: none; font-size: 12.5px; }
.pagination a.active { border-color: var(--accent); color: var(--accent); }

.note { font-size: 11.5px; color: var(--text-faint); margin-top: 10px; }