:root {
  --bg: #0a0b0d;
  --panel: rgba(255, 255, 255, 0.04);
  --panel-border: rgba(255, 255, 255, 0.08);
  --text: #e6e8eb;
  --text-dim: #8b8f96;
  --green: #2ecc71;
  --red: #e74c3c;
  --accent: #4c8bf5;
  --purple: #a78bfa;
  --slate: #6b7fa3;
  --sticky-bg: #14161a; /* opaque background for sticky table header/footer */
}

* { box-sizing: border-box; }

body {
  background: radial-gradient(circle at top left, #14161a, var(--bg) 60%);
  color: var(--text);
  font-family: -apple-system, "Segoe UI", Roboto, sans-serif;
  margin: 0;
  min-height: 100vh;
}

.glass-card {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 16px;
  backdrop-filter: blur(12px);
  padding: 20px;
}

.pnl-positive { color: var(--green); }
.pnl-negative { color: var(--red); }
.pnl-zero { color: var(--text-dim); }

.hero-metric {
  font-size: clamp(3.2rem, 9vw, 5.6rem);
  line-height: 1.05;
  font-weight: 700;
  text-shadow: 0 0 24px currentColor;
}

a { color: var(--accent); }

/* Period selector shared by the dashboard and the account page */
.period-bar { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 24px; margin: 0 0 16px; }
.period-presets, .period-custom { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.period-custom label { color: var(--text-dim); font-size: 0.85rem; display: flex; align-items: center; gap: 6px; }
.period-bar input[type="date"] {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  color: var(--text);
  color-scheme: dark;
  font: inherit;
  padding: 5px 8px;
}
.period-btn {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  color: var(--text);
  cursor: pointer;
  font: inherit;
  font-size: 0.9rem;
  padding: 6px 12px;
}
.period-btn:hover { border-color: var(--accent); }
.period-btn.active { background: rgba(76, 139, 245, 0.18); border-color: var(--accent); color: var(--accent); }

/* ---- top navigation (frontend/static/nav.js) ---- */
.app-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 11, 13, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--panel-border);
}
.app-nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 10px 24px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
}
.app-nav a {
  color: var(--text-dim);
  text-decoration: none;
  padding: 6px 12px;
  border-radius: 8px;
  font-size: 0.95rem;
}
.app-nav a:hover { color: var(--text); background: var(--panel); }
.app-nav a.active {
  color: var(--text);
  background: rgba(76, 139, 245, 0.18);
  box-shadow: inset 0 0 0 1px rgba(76, 139, 245, 0.45);
}
.app-nav-spacer { flex: 1 1 auto; }
.app-nav-logout {
  background: transparent;
  color: var(--text-dim);
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  padding: 6px 12px;
  font-size: 0.95rem;
  cursor: pointer;
}
.app-nav-logout:hover { color: var(--text); background: var(--panel); }
@media (max-width: 600px) {
  .app-nav-inner { padding: 8px 12px; }
}

/* ---- charts + PNL calendar (frontend/static/charts.js) ---- */
.card-wide { grid-column: 1 / -1; }
.chart-box { position: relative; height: 320px; }
.chart-box.wide { height: 340px; }
.chart-sub { color: var(--text-dim); font-size: 0.8rem; margin: -4px 0 8px; line-height: 1.4; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.chip {
  display: flex; align-items: baseline; gap: 6px; padding: 4px 10px; font-size: 0.85rem;
  background: var(--panel); border: 1px solid var(--panel-border); border-radius: 8px;
}
.chip.chip-strong { border-color: var(--accent); }
.chip-label { color: var(--text-dim); }
.chip-value { font-weight: 600; }
#pnl-calendar { --cal-cell: 26px; --cal-gap: 3px; --cal-month-h: 16px; position: relative; }
.cal-body { display: flex; align-items: flex-start; gap: 8px; }
.cal-weekdays {
  display: grid; grid-template-rows: var(--cal-month-h) repeat(7, var(--cal-cell)); gap: var(--cal-gap);
  color: var(--text-dim); font-size: 0.7rem; line-height: var(--cal-cell); flex: none;
}
.cal-scroll { overflow-x: auto; flex: 1 1 auto; padding-bottom: 6px; }
.cal-months, .cal-grid {
  display: grid; grid-auto-flow: column; grid-auto-columns: var(--cal-cell); gap: var(--cal-gap); width: max-content;
}
.cal-months { grid-template-rows: var(--cal-month-h); margin-bottom: var(--cal-gap); color: var(--text-dim); font-size: 0.7rem; line-height: var(--cal-month-h); }
.cal-months span { white-space: nowrap; overflow: visible; }
.cal-grid { grid-template-rows: repeat(7, var(--cal-cell)); }
.cal-cell {
  width: var(--cal-cell); height: var(--cal-cell); border-radius: 4px; background: var(--panel); border: 1px solid var(--panel-border);
  font-size: 0.6rem; line-height: calc(var(--cal-cell) - 2px); text-align: center; color: color-mix(in srgb, var(--text) 60%, transparent);
  user-select: none;
}
.cal-cell.cal-empty { background: transparent; border-color: transparent; }
.cal-cell.cal-in-period { box-shadow: inset 0 0 0 1px var(--accent); }
.cal-legend { display: flex; align-items: center; gap: 6px; margin-top: 10px; color: var(--text-dim); font-size: 0.75rem; }
.cal-legend .cal-swatch { width: 14px; height: 14px; }

/* ---- volume strip «Объём по дням» + exchange volume table (frontend/static/charts.js) ---- */
.vol-head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 4px 16px; }
.vol-head h3 { margin: 0 0 8px; }
.vol-caption { color: var(--text-dim); font-size: 0.85rem; text-align: right; }
.vol-strip { display: flex; gap: 8px; align-items: stretch; overflow-x: auto; padding-bottom: 6px; }
.vol-col { flex: 1 1 0; min-width: 44px; max-width: 110px; display: flex; flex-direction: column; align-items: center; gap: 2px; text-align: center; }
.vol-strip.vol-scroll .vol-col { flex: 0 0 56px; }
.vol-bar-area { width: 100%; height: 150px; display: flex; align-items: flex-end; margin-bottom: 6px; }
.vol-bar { width: 100%; background: var(--accent); border-radius: 8px 8px 3px 3px; min-height: 2px; }
.vol-bar.vol-bar-max { background: var(--green); }
.vol-bar.vol-bar-zero { height: 2px; background: var(--panel-border); border-radius: 1px; }
.vol-val { font-size: 0.9rem; font-weight: 600; white-space: nowrap; }
.vol-pos, .vol-date { color: var(--text-dim); font-size: 0.72rem; white-space: nowrap; }
.subhead { margin: 20px 0 8px; }
/* turnover split by account: stacked segments and one coloured line per account under the bar */
.vol-bar.vol-stack { display: flex; flex-direction: column-reverse; overflow: hidden; background: none; }
.vol-bar.vol-stack.vol-bar-max { background: none; outline: 1px solid var(--green); }
.vol-seg { width: 100%; flex: none; }
.vol-acc { font-size: 0.72rem; font-weight: 600; white-space: nowrap; max-width: 100%; overflow: hidden; text-overflow: ellipsis; }
.vol-strip.vol-scroll:has(.vol-acc) .vol-col { flex: 0 0 96px; max-width: 96px; }
.vol-strip:has(.vol-acc) .vol-col { max-width: 130px; }
.table-wrap { overflow-x: auto; }

/* ---- «Из чего сложился итог»: collapsible arithmetic under the total ---- */
.ledger-details { margin-top: 12px; padding: 0; }
.ledger-details > summary {
  list-style: none;
  cursor: pointer;
  padding: 12px 20px;
  text-align: center;
  color: var(--text-dim);
  font-size: 0.9rem;
  user-select: none;
}
.ledger-details > summary::-webkit-details-marker { display: none; }
.ledger-details > summary::after { content: "▾"; margin-left: 8px; display: inline-block; transition: transform 0.15s; }
.ledger-details[open] > summary::after { transform: rotate(180deg); }
.ledger-details > summary:hover { color: var(--text); }
.ledger-details[open] > summary { border-bottom: 1px solid var(--panel-border); }
.ledger-rows { margin: 0 auto; max-width: 560px; padding: 8px 20px 16px; }
.ledger-row { display: flex; align-items: baseline; gap: 10px; padding: 8px 0; border-bottom: 1px dotted var(--panel-border); }
.ledger-row dt { flex: 1 1 auto; color: var(--text-dim); }
.ledger-row dt .sign { display: inline-block; width: 1.4em; opacity: 0.7; }
.ledger-row dd { margin: 0; }
.ledger-value { font-variant-numeric: tabular-nums; font-weight: 600; text-align: right; }
.ledger-row.ledger-total { border-top: 2px solid var(--panel-border); border-bottom: 0; margin-top: 6px; padding-top: 12px; }
.ledger-row.ledger-total dt { color: var(--text); font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; font-size: 0.85rem; }

/* ---- closable notice (stale-data banner) ---- */
.banner-closable { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
.banner-closable[hidden] { display: none; }
.banner-close {
  flex: none; background: none; border: 0; color: inherit; cursor: pointer;
  font-size: 1.5rem; line-height: 1; padding: 0 4px; opacity: 0.7;
}
.banner-close:hover, .banner-close:focus-visible { opacity: 1; }

/* ---- «Сегодня»: PNL of the current (UTC) day, independent of the chosen period ---- */
.today-line {
  display: flex; flex-wrap: wrap; justify-content: center; align-items: baseline; gap: 4px 10px;
  margin: 12px 0 0; padding: 10px 16px;
  border: 1px solid var(--panel-border); border-radius: 12px; background: var(--panel);
  font-size: 0.95rem; color: var(--text-dim);
}
.today-line[hidden] { display: none; }
.today-label { text-transform: uppercase; letter-spacing: 0.05em; font-size: 0.8rem; }
.today-value { font-size: 1.25rem; font-weight: 700; font-variant-numeric: tabular-nums; }
.today-extra b { color: var(--text); font-weight: 600; font-variant-numeric: tabular-nums; }
.today-sep { opacity: 0.5; }

/* ---- PNL calendar: card that pops up on a day click ---- */
.cal-cell[role="button"] { cursor: pointer; }
.cal-cell[role="button"]:hover { outline: 1px solid var(--text-dim); }
.cal-cell.cal-selected { outline: 2px solid var(--text); outline-offset: 1px; }
.cal-pop {
  position: absolute; z-index: 20; transform: translateX(-50%);
  min-width: 210px; padding: 12px 14px;
  background: #1b1e24; border: 1px solid var(--panel-border); border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.55);
  font-size: 0.85rem;
}
.cal-pop-title { color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.05em; font-size: 0.75rem; }
.cal-pop-big { font-size: 1.7rem; font-weight: 700; font-variant-numeric: tabular-nums; margin-top: 2px; }
.cal-pop-caption { color: var(--text-dim); font-size: 0.72rem; margin-bottom: 8px; }
.cal-pop-row { display: flex; justify-content: space-between; gap: 16px; padding: 3px 0; border-top: 1px solid var(--panel-border); color: var(--text-dim); }
.cal-pop-row b { color: var(--text); font-weight: 600; font-variant-numeric: tabular-nums; }
.cal-pop-row b.pnl-positive { color: var(--green); }
.cal-pop-row b.pnl-negative { color: var(--red); }