/* Crypto Monitor — dashboard-stijl. Donker standaard, licht via systeem of knop. */
:root {
  --bg: #0b0f17; --panel: #121826; --panel-2: #182032; --border: #232c40; --border-strong: #2f3a52;
  --text: #e7ebf3; --muted: #8a94a9; --accent: #5b8cff; --accent-weak: rgba(91,140,255,.14);
  --up: #18c787; --up-weak: rgba(24,199,135,.14); --down: #f04452; --down-weak: rgba(240,68,82,.14);
  --warn: #f2b93b; --warn-weak: rgba(242,185,59,.14);
  --chart-bg: #121826; --chart-grid: #1a2233; --chart-text: #8a94a9;
  --radius: 12px; --shadow: 0 1px 2px rgba(0,0,0,.3), 0 8px 24px rgba(0,0,0,.18);
  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", Consolas, monospace;
  color-scheme: dark;
}
:root[data-theme="light"] {
  --bg: #f4f6fa; --panel: #ffffff; --panel-2: #f1f4f9; --border: #e0e5ee; --border-strong: #cdd5e2;
  --text: #121826; --muted: #5b6579; --accent: #2f6bff; --accent-weak: rgba(47,107,255,.10);
  --up: #0c9f68; --up-weak: rgba(12,159,104,.10); --down: #d92d3d; --down-weak: rgba(217,45,61,.09);
  --warn: #b7791f; --warn-weak: rgba(183,121,31,.12);
  --chart-bg: #ffffff; --chart-grid: #eef1f6; --chart-text: #5b6579;
  --shadow: 0 1px 2px rgba(16,24,40,.06), 0 6px 18px rgba(16,24,40,.06);
  color-scheme: light;
}
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #f4f6fa; --panel: #ffffff; --panel-2: #f1f4f9; --border: #e0e5ee; --border-strong: #cdd5e2;
    --text: #121826; --muted: #5b6579; --accent: #2f6bff; --accent-weak: rgba(47,107,255,.10);
    --up: #0c9f68; --up-weak: rgba(12,159,104,.10); --down: #d92d3d; --down-weak: rgba(217,45,61,.09);
    --warn: #b7791f; --warn-weak: rgba(183,121,31,.12);
    --chart-bg: #ffffff; --chart-grid: #eef1f6; --chart-text: #5b6579;
    --shadow: 0 1px 2px rgba(16,24,40,.06), 0 6px 18px rgba(16,24,40,.06);
    color-scheme: light;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); font: 14px/1.45 var(--font); min-height: 100vh;
  display: flex; flex-direction: column; overflow-x: hidden; }
h1, h2, h3, h4 { margin: 0 0 .6em; line-height: 1.25; }
h2 { font-size: 17px; margin-top: 8px; } h3 { font-size: 15px; } h4 { font-size: 13px; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; margin-top: 14px; }
a { color: var(--accent); }
code { font-family: var(--mono); font-size: 12px; background: var(--panel-2); padding: 1px 5px; border-radius: 5px; }
.muted { color: var(--muted); } .small { font-size: 12px; }
.num { font-variant-numeric: tabular-nums; font-family: var(--mono); font-size: 13px; }
.up { color: var(--up); } .down { color: var(--down); }
[hidden] { display: none !important; }

/* ---------- topbalk ---------- */
.topbar { position: sticky; top: 0; z-index: 20; display: flex; align-items: center; gap: 10px; padding: 10px 16px;
  background: color-mix(in srgb, var(--panel) 92%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--border); }
.brand { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 15px; white-space: nowrap; }
.spacer { flex: 1; }
.mode-badge { padding: 5px 12px; border-radius: 999px; font-weight: 800; font-size: 13px; letter-spacing: .05em; text-transform: uppercase;
  background: var(--accent-weak); color: var(--accent); border: 1px solid color-mix(in srgb, var(--accent) 35%, transparent); white-space: nowrap; }
.mode-badge.paper { background: var(--warn-weak); color: var(--warn); border-color: color-mix(in srgb, var(--warn) 40%, transparent); }
.mode-badge.live { background: var(--down); color: #fff; border-color: var(--down); }
.data-status { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--muted); white-space: nowrap; }
.data-status .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--muted); }
.data-status.ok .dot { background: var(--up); box-shadow: 0 0 0 3px var(--up-weak); }
.data-status.bad .dot { background: var(--down); box-shadow: 0 0 0 3px var(--down-weak); animation: pulse 1.2s infinite; }
@keyframes pulse { 50% { opacity: .35; } }
.icon-btn { display: inline-grid; place-items: center; width: 34px; height: 34px; border-radius: 9px; border: 1px solid var(--border);
  background: var(--panel); color: var(--muted); cursor: pointer; text-decoration: none; }
.icon-btn:hover { color: var(--text); border-color: var(--border-strong); }

/* ---------- knoppen & formulieren ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; min-height: 34px; padding: 6px 14px; border-radius: 9px;
  border: 1px solid var(--border-strong); background: var(--panel); color: var(--text); font: 600 13px var(--font); cursor: pointer; text-decoration: none; white-space: nowrap; }
.btn:hover { background: var(--panel-2); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover { filter: brightness(1.08); }
.btn.danger { background: var(--down); border-color: var(--down); color: #fff; }
.btn.danger:hover { filter: brightness(1.08); }
.btn.small { min-height: 28px; padding: 3px 10px; font-size: 12px; }
.btn:disabled { opacity: .55; cursor: wait; }
.stop-btn { font-weight: 800; letter-spacing: .03em; }
input, select, textarea { font: 14px var(--font); color: var(--text); background: var(--panel-2); border: 1px solid var(--border);
  border-radius: 8px; padding: 7px 10px; min-height: 36px; width: 100%; }
input:focus, select:focus { outline: 2px solid var(--accent-weak); border-color: var(--accent); }
input[type="checkbox"], input[type="radio"] { width: 16px; height: 16px; min-height: 0; accent-color: var(--accent); }
label { display: flex; flex-direction: column; gap: 4px; font-size: 12px; color: var(--muted); font-weight: 600; }
label.check, .toggles label, .radio label { flex-direction: row; align-items: center; gap: 7px; color: var(--text); font-weight: 500; font-size: 13px; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: 12px; }
.hint { font-weight: 400; font-size: 11px; color: var(--muted); }

/* ---------- tabs ---------- */
.tabs { display: flex; gap: 2px; padding: 0 16px; border-bottom: 1px solid var(--border); background: var(--panel); overflow-x: auto; scrollbar-width: none; }
.tabs::-webkit-scrollbar { display: none; }
.tabs button { background: none; border: 0; border-bottom: 2px solid transparent; color: var(--muted); font: 600 13px var(--font);
  padding: 12px 12px 10px; cursor: pointer; white-space: nowrap; }
.tabs button:hover { color: var(--text); }
.tabs button.active { color: var(--text); border-bottom-color: var(--accent); }

main { flex: 1; width: 100%; max-width: 1400px; margin: 0 auto; padding: 16px; }
.tab { display: none; } .tab.active { display: block; animation: fade .15s ease; }
@keyframes fade { from { opacity: .4; } }
footer { text-align: center; color: var(--muted); font-size: 12px; padding: 18px 16px 26px; border-top: 1px solid var(--border); }

.banner { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 10px 16px; font-size: 13px; flex-wrap: wrap; }
.banner.danger { background: var(--down-weak); color: var(--down); border-bottom: 1px solid color-mix(in srgb, var(--down) 30%, transparent); }
.banner.warn { background: var(--warn-weak); color: var(--warn); border-bottom: 1px solid color-mix(in srgb, var(--warn) 30%, transparent); }

/* ---------- panelen, kpi's, kaarten ---------- */
.panel { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; margin-bottom: 16px; box-shadow: var(--shadow); }
.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px; margin-bottom: 16px; }
.kpi { min-width: 0; background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 12px 14px; box-shadow: var(--shadow); }
.kpi .k { font-size: 12px; color: var(--muted); font-weight: 600; }
.kpi .v { font-size: 20px; font-weight: 700; margin-top: 2px; font-variant-numeric: tabular-nums; }
.kpi .s { font-size: 12px; color: var(--muted); margin-top: 2px; }
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 14px; margin-bottom: 16px; }
.card { min-width: 0; background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px; box-shadow: var(--shadow); cursor: pointer; transition: border-color .15s; }
.card:hover { border-color: var(--border-strong); }
.card-head { display: flex; justify-content: space-between; align-items: baseline; gap: 4px 8px; flex-wrap: wrap; }
.card-head .mk { font-weight: 800; font-size: 15px; }
.card-head .px { font-size: 22px; font-weight: 700; font-variant-numeric: tabular-nums; }
.card-sub { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 2px 8px; font-size: 12px; color: var(--muted); margin: 2px 0 10px; }
.eval { border-top: 1px solid var(--border); padding: 9px 0 2px; }
.eval-head { display: flex; align-items: center; gap: 8px; font-size: 12px; color: var(--muted); }
.eval-head .lbl { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.eval p { margin: 5px 0 0; font-size: 13px; }
.pos-box { margin-top: 10px; padding: 8px 10px; border-radius: 9px; background: var(--panel-2); font-size: 12px; display: flex; justify-content: space-between; gap: 8px; flex-wrap: wrap; }

.badge { display: inline-block; padding: 2px 8px; border-radius: 6px; font-size: 11px; font-weight: 800; letter-spacing: .04em; white-space: nowrap; }
.badge.KOOP { background: var(--up-weak); color: var(--up); }
.badge.VERKOOP { background: var(--down-weak); color: var(--down); }
.badge.WACHT { background: var(--panel-2); color: var(--muted); }
.strength { width: 46px; height: 5px; background: var(--panel-2); border-radius: 3px; overflow: hidden; }
.strength i { display: block; height: 100%; background: var(--accent); }

/* ---------- tabellen ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); background: var(--panel); margin-bottom: 16px; }
.panel .table-wrap { border-radius: 9px; box-shadow: none; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { padding: 8px 12px; text-align: left; border-bottom: 1px solid var(--border); white-space: nowrap; vertical-align: top; }
th { font-size: 11px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); font-weight: 700; background: var(--panel-2); position: sticky; top: 0; }
td.r, th.r { text-align: right; }
td.wrap { white-space: normal; min-width: 260px; max-width: 520px; }
tr:last-child td { border-bottom: 0; }
tbody tr:hover td { background: color-mix(in srgb, var(--panel-2) 60%, transparent); }
.empty { padding: 22px; text-align: center; color: var(--muted); }

/* ---------- toolbar & grafiek ---------- */
.toolbar { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-bottom: 12px; }
.toolbar select { width: auto; min-width: 140px; }
.seg { display: inline-flex; background: var(--panel-2); border: 1px solid var(--border); border-radius: 9px; padding: 2px; overflow-x: auto; max-width: 100%; }
.seg button { background: none; border: 0; color: var(--muted); font: 600 12px var(--font); padding: 6px 10px; border-radius: 7px; cursor: pointer; white-space: nowrap; }
.seg button.active { background: var(--panel); color: var(--text); box-shadow: var(--shadow); }
.toggles { display: flex; flex-wrap: wrap; gap: 12px; }
.chart-legend { font-size: 12px; color: var(--muted); min-height: 18px; margin-bottom: 6px; font-variant-numeric: tabular-nums; }
.chart-legend b { color: var(--text); }
.chart-stack { background: var(--chart-bg); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; margin-bottom: 16px; }
.chart { position: relative; width: 100%; }
.chart.main { height: 440px; }
.chart.sub { height: 120px; border-top: 1px solid var(--border); }
.chart.eq { height: 300px; }
.chart-label { position: absolute; left: 8px; top: 4px; z-index: 3; font-size: 11px; color: var(--muted); pointer-events: none; }

/* ---------- backtest ---------- */
.sweep { margin-top: 14px; }
.sweep summary { cursor: pointer; font-weight: 600; }
.row-between { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; margin-top: 12px; }
.row-end { display: flex; justify-content: flex-end; gap: 8px; margin-top: 16px; }
.notice { padding: 10px 12px; border-radius: 9px; font-size: 13px; margin: 10px 0; }
.notice.warn { background: var(--warn-weak); color: var(--warn); }
.notice.info { background: var(--accent-weak); color: var(--text); }
.spinner { display: inline-block; width: 14px; height: 14px; border: 2px solid currentColor; border-right-color: transparent; border-radius: 50%; animation: spin .7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- instellingen ---------- */
.settings-section { margin-bottom: 16px; }
.strat-row { border: 1px solid var(--border); border-radius: 10px; padding: 12px; margin-bottom: 10px; background: var(--panel-2); }
.strat-row .form-grid { margin-top: 10px; }
.radio { display: flex; gap: 18px; flex-wrap: wrap; }
.radio label.disabled { opacity: .5; }
.save-bar { position: sticky; bottom: 0; z-index: 5; display: flex; justify-content: flex-end; gap: 10px; padding: 12px 0; background: linear-gradient(transparent, var(--bg) 35%); }

/* ---------- dialoog & toast ---------- */
dialog { border: 1px solid var(--border); border-radius: 14px; background: var(--panel); color: var(--text); padding: 0; width: min(440px, calc(100vw - 32px)); box-shadow: var(--shadow); }
dialog::backdrop { background: rgba(0,0,0,.55); }
.dialog-body { padding: 20px; }
.toast { position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%); z-index: 50; background: var(--text); color: var(--bg);
  padding: 10px 16px; border-radius: 10px; font-size: 13px; font-weight: 600; box-shadow: var(--shadow); max-width: calc(100vw - 32px); }
.toast.error { background: var(--down); color: #fff; }

/* ---------- login ---------- */
.login-body { display: grid; place-items: center; padding: 16px; }
.login-card { width: min(380px, 100%); background: var(--panel); border: 1px solid var(--border); border-radius: 16px; padding: 28px; box-shadow: var(--shadow); display: flex; flex-direction: column; gap: 14px; }
.login-card h1 { font-size: 22px; margin: 0; }
.login-card p { margin: 0; }
.login-card .error { color: var(--down); font-size: 13px; }
.disclaimer { font-size: 11px; color: var(--muted); text-align: center; }

/* ---------- mobiel ---------- */
@media (max-width: 720px) {
  .topbar { flex-wrap: wrap; padding: 8px 12px; gap: 8px; }
  .brand span { display: none; }
  .data-status .txt { display: none; }
  .stop-btn { padding: 6px 10px; }
  main { padding: 12px; }
  .tabs { padding: 0 8px; }
  .cards { grid-template-columns: 1fr; }
  .chart.main { height: 320px; }
  .chart.sub { height: 96px; }
  .kpi .v { font-size: 17px; }
  .toolbar select { flex: 1; }
}