/* krypto-dca-bot dashboard - deliberately plain, no build step. */

:root {
  --bg: #f3f1ea;
  --card: #fbfaf6;
  --border: #d8d4c6;
  --text: #22211d;
  --muted: #6b675b;
  --accent: #2c5f5d;
  --invested: #8a8576;
  --bh: #8a5f10;
  --cash: #5b7893;
  --pos: #2f6b3a;
  --neg: #a3362a;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --mono: ui-monospace, "Cascadia Mono", "SF Mono", Menlo, Consolas, monospace;
  --max: 1480px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1a1917;
    --card: #211f1d;
    --border: #3a3733;
    --text: #e8e4d9;
    --muted: #9b968a;
    --accent: #86b8b3;
    --invested: #857f72;
    --bh: #d9a94c;
    --cash: #8fa9c4;
    --pos: #8fc98a;
    --neg: #e5897a;
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 var(--sans);
}

.muted { color: var(--muted); }
.pos { color: var(--pos); }
.neg { color: var(--neg); }

button, select, input { font: inherit; color: inherit; }

/* --- top bar ------------------------------------------------------------ */

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--bg);
  border-bottom: 2px solid var(--text);
}
.topbar-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: .4rem 1.25rem;
  max-width: var(--max);
  margin: 0 auto;
  padding: .8rem 1.5rem .65rem;
}
.brand { display: flex; align-items: baseline; gap: .8rem; }
.brand h1 {
  margin: 0;
  font: 600 1.15rem/1.2 var(--mono);
  letter-spacing: -.01em;
}
.status { display: flex; align-items: baseline; gap: 1rem; font-size: .84rem; }
.status form { margin: 0; }
.session-left { font: .8rem var(--mono); font-variant-numeric: tabular-nums; color: var(--muted); }
.session-left.warn { color: var(--neg); font-weight: 600; }
.status-line { display: inline-flex; align-items: baseline; gap: .4rem; font-family: var(--mono); font-size: .8rem; }

.badge {
  padding: 0 .4rem;
  border: 1px solid currentColor;
  border-radius: 2px;
  color: var(--muted);
  font: 600 .7rem/1.5 var(--mono);
  text-transform: uppercase;
  letter-spacing: .06em;
}
.badge.live { color: var(--neg); }
.badge.paper { color: var(--accent); }

.dot { font-size: .6rem; color: var(--muted); }
.dot.ok { color: var(--pos); }
.dot.bad { color: var(--neg); }

/* --- buttons ------------------------------------------------------------ */

button { cursor: pointer; }
button:disabled { opacity: .45; cursor: default; }
button:focus-visible, input:focus-visible, select:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.ghost, .seg button, .seg-btn {
  padding: .25rem .65rem;
  border: 1px solid var(--border);
  border-radius: 3px;
  background: transparent;
  font-size: .82rem;
}
.ghost:hover, .seg button:hover:not(.active), .seg-btn:hover:not(:disabled) {
  border-color: var(--text);
}
.primary {
  padding: .45rem 1.1rem;
  border: 1px solid var(--text);
  border-radius: 3px;
  background: var(--text);
  color: var(--bg);
  font-weight: 600;
}
.primary:hover:not(:disabled) { background: var(--accent); border-color: var(--accent); }

.seg { display: flex; }
.seg button { border-radius: 0; margin-left: -1px; }
.seg button:first-child { border-radius: 3px 0 0 3px; margin-left: 0; }
.seg button:last-child { border-radius: 0 3px 3px 0; }
.seg button.active { background: var(--text); border-color: var(--text); color: var(--bg); position: relative; }

/* --- layout ------------------------------------------------------------- */

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 1.4rem 1.5rem 0;
}

.error-banner {
  margin: 0 0 1rem;
  padding: .55rem .8rem;
  border: 1px solid var(--neg);
  border-left-width: 4px;
  border-radius: 2px;
  color: var(--neg);
  font-size: .9rem;
}

/* hairlines come from the grid gap showing the border colour through */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 1px;
  margin-bottom: 1.4rem;
  border: 1px solid var(--border);
  background: var(--border);
}
.kpi { background: var(--card); padding: .8rem 1rem .9rem; }
.kpi .label { font-size: .74rem; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; }
.kpi .value {
  margin-top: .25rem;
  font: 500 1.3rem/1.25 var(--mono);
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
}
.kpi .sub { margin-top: .1rem; font: .78rem var(--mono); font-variant-numeric: tabular-nums; }

.grid { display: grid; gap: 1.4rem; margin-bottom: 1.4rem; }
.grid-top { grid-template-columns: minmax(0, 2fr) minmax(0, 1fr); }
.grid-bottom { grid-template-columns: minmax(0, 3fr) minmax(0, 2fr); }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 2px;
  padding: 0 1.2rem 1.1rem;
  min-width: 0;
}
.card h2 { margin: 0; font: 600 1.05rem/1.3 var(--serif); }
.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .75rem;
  margin: 0 0 .9rem;
  padding: .75rem 0 .6rem;
  border-bottom: 1px solid var(--border);
  min-height: 3rem;
}

.pager { display: flex; align-items: center; gap: .4rem; }
#tr-range { font: .8rem var(--mono); min-width: 9ch; text-align: center; }

.chart-wrap { position: relative; height: 340px; }
.chart-wrap canvas { max-width: 100%; }
.empty-state {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  margin: 0; color: var(--muted); font-size: .9rem; text-align: center;
}
.note { margin: .6rem 0 0; font-size: .8rem; }

/* --- backtest form ------------------------------------------------------ */

.bt-form {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  gap: .75rem;
}
.field { display: flex; flex-direction: column; gap: .2rem; }
.field-head {
  display: flex;
  align-items: center;
  gap: .35rem;
  font-size: .76rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .05em;
}
.bt-form select {
  padding: .38rem .55rem;
  border: 1px solid var(--border);
  border-radius: 3px;
  background: var(--bg);
  font-size: .88rem;
}
.intro { margin: 0 0 .9rem; font-size: .85rem; }
#bt-status { margin: .75rem 0 0; }
#bt-result { margin-top: 1rem; }

/* --- help ----------------------------------------------------------------- */

.help {
  display: inline-grid;
  place-items: center;
  width: 1.5rem;
  height: 1.5rem;
  padding: 0;
  border: 1px solid var(--muted);
  border-radius: 50%;
  background: transparent;
  color: var(--muted);
  font: 600 .75rem/1 var(--mono);
  text-transform: none;
  vertical-align: middle;
}
.help:hover, .help[aria-expanded="true"] { border-color: var(--text); color: var(--text); }
.title-help { display: flex; align-items: center; gap: .5rem; }
.help-link {
  padding: 0;
  border: 0;
  background: none;
  color: var(--accent);
  font-size: .8rem;
  text-decoration: underline;
  text-underline-offset: 2px;
}
.help-panel {
  margin-top: .75rem;
  padding: .65rem .9rem;
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 2px;
  background: var(--bg);
  font-size: .84rem;
  line-height: 1.5;
}
.help-panel p { margin: 0 0 .5rem; }
.help-panel > :last-child { margin-bottom: 0; }
.help-panel ul { margin: 0 0 .5rem; padding-left: 1.1rem; }
.help-panel li { margin-bottom: .3rem; }

/* --- tables ------------------------------------------------------------- */

.table-scroll { overflow-x: auto; }
.data-table { width: 100%; border-collapse: collapse; font-size: .88rem; }
.data-table th, .data-table td {
  padding: .45rem .5rem;
  border-bottom: 1px solid var(--border);
  text-align: left;
}
.data-table th {
  font-weight: 500;
  color: var(--muted);
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  white-space: nowrap;
  border-bottom-color: var(--text);
}
.data-table td.num, .data-table th.num {
  text-align: right;
  white-space: nowrap;
}
.data-table td.num { font: .84rem var(--mono); font-variant-numeric: tabular-nums; }
.data-table tbody tr:last-child td { border-bottom: none; }
.data-table .empty td { color: var(--muted); text-align: center; padding: 1.2rem; }

.share { margin-left: .25rem; font: .76rem var(--mono); color: var(--muted); }
.alloc {
  display: block;
  height: 3px;
  margin-top: .3rem;
  background: var(--border);
}
.alloc::after {
  content: "";
  display: block;
  height: 100%;
  width: var(--w, 0%);
  background: var(--accent);
}

.tag {
  display: inline-block;
  margin-left: .35rem;
  padding: 0 .35rem;
  border: 1px solid var(--bh);
  border-radius: 2px;
  font: .68rem/1.5 var(--mono);
  text-transform: uppercase;
  color: var(--bh);
  vertical-align: middle;
}

footer {
  max-width: var(--max);
  margin: 0 auto;
  padding: .5rem 1.5rem 2rem;
  font-size: .78rem;
  font-family: var(--mono);
}

/* --- login -------------------------------------------------------------- */

.login-page {
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: 1rem;
}
.login-card {
  width: 100%;
  max-width: 360px;
  background: var(--card);
  border: 1px solid var(--border);
  border-top: 3px solid var(--text);
  border-radius: 2px;
  padding: 1.6rem 1.6rem 1.3rem;
}
.login-card .brand { margin-bottom: 1.4rem; }
.login-card .brand h1, .login-card .brand span { font: 600 1.15rem/1.2 var(--mono); }
.login-form { display: flex; flex-direction: column; gap: .35rem; }
.login-form label { font-size: .76rem; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; margin-top: .6rem; }
.login-form input {
  width: 100%;
  padding: .55rem .65rem;
  border: 1px solid var(--border);
  border-radius: 3px;
  background: var(--bg);
  font-size: 1rem; /* 16px keeps iOS from zooming on focus */
}
.login-form .primary { margin-top: 1.3rem; padding: .6rem 1rem; }
.pw-wrap { position: relative; }
.pw-wrap input { padding-right: 5.5rem; }
.pw-wrap .ghost {
  position: absolute;
  right: .3rem;
  top: 50%;
  transform: translateY(-50%);
  border-color: transparent;
  color: var(--muted);
}
.login-note { margin: 1.2rem 0 0; font-size: .78rem; }

/* --- responsive --------------------------------------------------------- */

@media (max-width: 1180px) {
  .kpi-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .grid-top, .grid-bottom { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 720px) {
  .topbar-inner, .wrap, footer { padding-left: 1rem; padding-right: 1rem; }
  .wrap { padding-top: 1rem; }
  .kpi-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .kpi { padding: .65rem .8rem .75rem; }
  .kpi .value { font-size: 1.1rem; }
  .grid { gap: 1rem; }
  .card { padding: 0 .9rem .9rem; }
  .chart-wrap { height: 240px; }
  .status { width: 100%; flex-wrap: wrap; justify-content: space-between; gap: .3rem .9rem; }
  .status-line, .session-left { white-space: nowrap; }
  .data-table th, .data-table td { padding-left: .3rem; padding-right: .3rem; }
  .data-table td.num { font-size: .78rem; }
  .help { width: 1.75rem; height: 1.75rem; font-size: .85rem; }

  /* trades: one block per row instead of a wide table */
  .data-table.stack thead { display: none; }
  .data-table.stack tbody tr {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: .15rem 1rem;
    padding: .6rem 0;
    border-bottom: 1px solid var(--border);
  }
  .data-table.stack tbody tr:last-child { border-bottom: none; }
  .data-table.stack td {
    display: flex;
    justify-content: space-between;
    gap: .5rem;
    padding: .1rem 0;
    border: 0;
    text-align: right;
  }
  .data-table.stack td::before {
    content: attr(data-label);
    color: var(--muted);
    font: .74rem var(--sans);
    text-align: left;
  }
  .data-table.stack tr.empty { display: block; }
  .data-table.stack tr.empty td { display: block; text-align: center; }
  .data-table.stack tr.empty td::before { content: none; }
}