:root {
    --bg: #0b0e14; --card-bg: #141922; --card-border: #1f2733;
    --text: #e6e9ef; --text-muted: #8b93a3;
    --green: #4ade80; --red: #f87171; --amber: #f59e0b; --violet: #8b5cf6;
    --accent: #60a5fa;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body { background: var(--bg); color: var(--text);
       font-family: -apple-system, 'Segoe UI', Roboto, sans-serif; min-height: 100vh; }
a { color: var(--accent); }
.positive { color: var(--green); } .negative { color: var(--red); }
.muted { color: var(--text-muted); }
.no-data { color: var(--text-muted); text-align: center; padding: 16px; }

.auth-bar { position: fixed; top: 10px; right: 14px; z-index: 50; font-size: 0.9em; }
.header { text-align: center; padding: 28px 10px 8px; }
.header h1 { font-size: 2.4em; letter-spacing: 6px; }
.header .subtitle { color: var(--text-muted); margin-top: 2px; }
.fresh-badge { display: inline-block; margin-top: 10px; padding: 4px 14px;
               border: 1px solid var(--card-border); border-radius: 999px;
               background: var(--card-bg); color: var(--text-muted); font-size: 0.85em; }
.fresh-badge b { color: var(--green); }

.container { max-width: 1100px; margin: 0 auto; padding: 16px; }
.grid { display: grid; gap: 12px; }
.cards-5 { grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); }
.cards-3 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.card { background: var(--card-bg); border: 1px solid var(--card-border);
        border-radius: 10px; padding: 14px; }
.card .label { color: var(--text-muted); font-size: 0.8em; text-transform: uppercase;
               letter-spacing: 1px; margin-bottom: 6px; }
.card .value { font-size: 1.5em; font-weight: 600; }
.card .sub { color: var(--text-muted); font-size: 0.8em; margin-top: 4px; }
.book-card { border-left: 3px solid var(--card-border); }

.section { background: var(--card-bg); border: 1px solid var(--card-border);
           border-radius: 10px; padding: 18px; margin-top: 16px; }
.section h2 { font-size: 1.1em; margin-bottom: 12px; }

.tab-buttons { display: flex; gap: 8px; margin-top: 20px; flex-wrap: wrap; align-items: center; }
.tab-btn { background: var(--card-bg); border: 1px solid var(--card-border);
           color: var(--text-muted); padding: 9px 18px; border-radius: 8px;
           cursor: pointer; font-size: 0.95em; }
.tab-btn.active { color: var(--text); border-color: var(--accent); }
.tab-content { display: none; } .tab-content.active { display: block; }

table { width: 100%; border-collapse: collapse; font-size: 0.9em; }
th { text-align: left; color: var(--text-muted); font-weight: 500;
     padding: 8px 10px; border-bottom: 1px solid var(--card-border); }
td { padding: 8px 10px; border-bottom: 1px solid rgba(255,255,255,0.04); }
.table-wrap { overflow-x: auto; }

.trade-item { display: flex; justify-content: space-between; align-items: center;
              padding: 10px 4px; border-bottom: 1px solid rgba(255,255,255,0.05); }
.trade-symbol { font-weight: 600; }
.trade-time { color: var(--text-muted); font-size: 0.82em; margin-top: 2px; }

.btn { border: none; border-radius: 8px; padding: 10px 16px; cursor: pointer;
       font-size: 0.92em; color: #fff; background: #2a3342; }
.btn-success { background: #166534; } .btn-warning { background: #92400e; }
.btn-danger { background: #991b1b; } .btn-login { background: #1e3a8a; }
.controls { display: flex; gap: 10px; flex-wrap: wrap; }

.chart-controls { display: flex; gap: 6px; margin-bottom: 10px; }
.chart-period-btn { background: none; border: 1px solid var(--card-border);
                    color: var(--text-muted); border-radius: 6px; padding: 4px 12px; cursor: pointer; }
.chart-period-btn.active { color: var(--text); border-color: var(--accent); }
.chart-container { height: 260px; position: relative; }

.login-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.75);
                 display: none; align-items: center; justify-content: center; z-index: 100; }
.login-overlay.show { display: flex; }
.login-box { background: var(--card-bg); border: 1px solid var(--card-border);
             border-radius: 12px; padding: 26px; width: 320px; }
.login-box h3 { margin-bottom: 14px; }
.login-box input { width: 100%; margin-bottom: 10px; padding: 10px;
                   background: #0d1117; color: var(--text);
                   border: 1px solid var(--card-border); border-radius: 8px; }
.login-box .error { color: var(--red); font-size: 0.85em; margin-bottom: 10px; }

.kv { display: flex; justify-content: space-between; padding: 4px 0; font-size: 0.92em; gap: 12px; }
.kv span:first-child { color: var(--text-muted); }
.kv span:last-child { text-align: right; }
.settings-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 14px; }
.settings-block { background: rgba(0,0,0,0.25); border-radius: 8px; padding: 14px; }
.settings-block h3 { font-size: 1em; margin-bottom: 10px; }

.maint-banner { display: none; background: rgba(245,158,11,0.14); border: 1px solid var(--amber); color: var(--amber);
                border-radius: 10px; padding: 10px 14px; margin-bottom: 12px; font-size: 0.95em; }
body.is-admin .maint-banner.on { display: block; }

/* the desk */
.desk-two { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 16px; }
@media (max-width: 760px) { .desk-two { grid-template-columns: 1fr; } }
.desk-charts { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 14px; }
.desk-chart { height: 240px; position: relative; }
.desk-chart.main { height: 380px; }
.desk-charts > .span-all { grid-column: 1 / -1; }
.desk-chart canvas { width: 100%; height: 100%; display: block; }
.chart-title { color: var(--text-muted); font-size: 0.78em; margin-bottom: 4px; text-transform: uppercase; letter-spacing: 1px; }
.desk-ladder td { padding: 5px 8px; }
.desk-ladder tr.spot td { background: rgba(96,165,250,0.12); font-weight: 600; }
.desk-ladder td.lvl-r { color: var(--green); } .desk-ladder td.lvl-s { color: var(--red); } .desk-ladder td.lvl-p { color: var(--amber); }
.lock-badge { display: inline-block; margin-top: 10px; padding: 8px 14px; border-radius: 8px; font-weight: 700; letter-spacing: 1px; }
.lock-open { background: rgba(74,222,128,0.15); color: var(--green); border: 1px solid var(--green); }
.lock-locked { background: rgba(248,113,113,0.12); color: var(--red); border: 1px solid var(--red); }
.lock-off { background: rgba(251,191,36,0.14); color: var(--amber); border: 1px solid var(--amber); }
.tk-form { display: none; } .tk-form.open { display: block; }
.pill { display: inline-block; padding: 1px 7px; border-radius: 999px; font-size: 0.75em; background: #1f2733; color: var(--text-muted); margin-left: 4px; }
.pill.live { color: var(--green); } .pill.delayed { color: var(--amber); }
.plan-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px; margin-top: 8px; }
.plan-grid input { width: 100%; padding: 8px; background: #0d1117; color: var(--text); border: 1px solid var(--card-border); border-radius: 8px; }
.plan-grid .label { color: var(--text-muted); font-size: 0.75em; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 4px; }
.btn-plan { background: #1e3a8a; padding: 4px 10px; font-size: 0.85em; }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }
.btn.armed { outline: 2px solid var(--amber); }
.note { font-size: 0.9em; margin-top: 8px; min-height: 1.2em; }
.note.ok { color: var(--green); } .note.err { color: var(--red); } .note.info { color: var(--text-muted); }
tr.selected td { background: rgba(96,165,250,0.10); }
td.num { text-align: right; font-variant-numeric: tabular-nums; }

.admin-only { display: none; }
body.is-admin .admin-only { display: block; }
body.is-admin .admin-only.tab-btn { display: inline-block; }
body.is-admin .grid.admin-only { display: grid; }
body.is-admin .controls.admin-only { display: flex; }
.locked-note { text-align: center; color: var(--text-muted); padding: 60px 20px; }
body.is-admin .locked-note { display: none; }
.footer { text-align: center; color: var(--text-muted); font-size: 0.8em; padding: 24px 0; }