/* Reef Venue — KuCoin-informed layout, our purple reef identity.
 * Dense, tabular-nums for money, responsive from phone to ultrawide. */
:root {
  --bg: #0c0a13;
  --panel: #141020;
  --panel-2: #181329;
  --edge: #251d3a;
  --text: #e8e4f3;
  --muted: #8f88a8;
  --accent: #8b5cf6;
  --accent-soft: #a78bfa;
  --accent-dim: #2c2150;
  --green: #16c784;
  --red: #ea3943;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  background:
    radial-gradient(1200px 500px at 85% -10%, rgba(139, 92, 246, 0.08), transparent 60%),
    var(--bg);
  color: var(--text);
  font: 14px/1.45 "Segoe UI", system-ui, sans-serif;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ---------------- header / nav ---------------- */
header {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 0 14px;
  min-height: 52px;
  border-bottom: 1px solid var(--edge);
  background: var(--panel);
  flex-wrap: wrap;
}
.brand { font-size: 17px; font-weight: 700; white-space: nowrap; display: flex; align-items: center; gap: 8px; }
.brand span { color: var(--accent-soft); }
.brand img { display: block; }
nav { display: flex; gap: 2px; overflow-x: auto; }
.nav-tab {
  background: none;
  border: none;
  color: var(--muted);
  font: inherit;
  font-weight: 600;
  padding: 15px 13px;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
}
.nav-tab:hover { color: var(--text); }
.nav-tab.active { color: var(--accent-soft); border-bottom-color: var(--accent); }
.conn { margin-left: auto; display: flex; gap: 8px; align-items: center; flex-wrap: wrap; padding: 6px 0; }
.conn input { width: min(240px, 42vw); }

/* ---------------- pair bar ---------------- */
.pair-bar {
  display: flex;
  align-items: center;
  gap: 26px;
  padding: 9px 16px;
  border-bottom: 1px solid var(--edge);
  background: var(--panel);
  overflow-x: auto;
  white-space: nowrap;
  scrollbar-width: thin;
}
.pair-cell { display: flex; align-items: center; gap: 8px; }
.pair { font-size: 16px; font-weight: 700; }
.pill { font-size: 11px; padding: 2px 8px; border-radius: 999px; border: 1px solid var(--edge); }
.pill.live { color: var(--accent-soft); border-color: var(--accent); background: var(--accent-dim); }
.pill.soon { color: var(--muted); }
.price-stat { display: flex; align-items: baseline; gap: 8px; }
.last { font-size: 19px; font-weight: 700; color: var(--accent-soft); font-variant-numeric: tabular-nums; }
.chg { font-weight: 600; font-size: 13px; }
.stat label { display: block; font-size: 10px; color: var(--muted); }
.stat span { font-variant-numeric: tabular-nums; font-weight: 600; font-size: 13px; }
.up { color: var(--green) !important; }
.down { color: var(--red) !important; }
.soon-cell { margin-left: auto; display: flex; gap: 8px; }

/* ---------------- layout ---------------- */
.tab-page { flex: 1; display: flex; flex-direction: column; }
.tab-page.hidden, .hidden { display: none; }
/* KuCoin default arrangement: trading row (chart | book | entry) with the
 * entry column spanning down past the bottom panel, which sits under the
 * chart+book only. Asset overview lives at the entry column's foot. */
main {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px 320px;
  /* Trading row is FIXED height and the bottom row is capped: content
   * (tape, order history) scrolls inside its panel instead of
   * stretching the whole page. */
  grid-template-rows: 560px minmax(230px, 340px);
  gap: 12px;
  padding: 12px 18px;
  flex: 1;
  align-items: stretch;
}
.col-chart { grid-column: 1; grid-row: 1; }
.col-book { grid-column: 2; grid-row: 1; }
.col-entry { grid-column: 3; grid-row: 1 / 3; display: flex; flex-direction: column; min-height: 0; }
.bottom-panel { grid-column: 1 / 3; grid-row: 2; }
.col-chart { display: flex; flex-direction: column; min-width: 0; }
/* Height tuned to KuCoin's trading row: tall enough for an 11+11 book. */
.chart-body { display: flex; flex: 1; min-height: 440px; gap: 12px; }
#chart-box { position: relative; flex: 1; min-width: 0; }
/* Inset so the series never starts hard against the tools rail. The
 * drawing overlay MUST carry the same inset as #chart — a mismatch
 * shifts every drawing left by the difference. */
#chart { position: absolute; inset: 0 0 0 8px; }
#draw-overlay { position: absolute; inset: 0 0 0 8px; pointer-events: none; z-index: 5; }
.chart-tools {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding-right: 6px;
  border-right: 1px solid var(--edge);
}
.chart-tools button {
  width: 28px;
  height: 28px;
  padding: 0;
  font-size: 10.5px;
  line-height: 1;
  border-radius: 6px;
  border: 1px solid transparent;
  background: none;
  color: var(--muted);
  display: flex;
  align-items: center;
  justify-content: center;
}
.chart-tools svg { width: 15px; height: 15px; display: block; }
.chart-tools button:hover { color: var(--text); border-color: var(--edge); }
.chart-tools button.active { color: var(--accent-soft); background: var(--accent-dim); border-color: var(--accent); }
.tool-sep { height: 1px; background: var(--edge); margin: 4px 2px; }
.col-chart:fullscreen { background: var(--bg); padding: 14px; }
/* Large screens: more breathing room everywhere, like KuCoin at width. */
@media (min-width: 1600px) {
  main { padding: 14px 34px; gap: 14px; grid-template-rows: 620px minmax(230px, 380px); }
  #chart { inset: 0 0 0 18px; }
  #draw-overlay { inset: 0 0 0 18px; }
}
@media (max-width: 1280px) {
  main {
    grid-template-columns: minmax(280px, 1fr) minmax(280px, 1fr);
    grid-template-rows: auto auto auto;
  }
  .col-chart { grid-column: 1 / -1; grid-row: 1; }
  .col-book { grid-column: 1; grid-row: 2; height: 520px; }
  .col-entry { grid-column: 2; grid-row: 2; }
  .bottom-panel { grid-column: 1 / -1; grid-row: 3; }
  .chart-body { min-height: 280px; }
}
@media (max-width: 760px) {
  main { grid-template-columns: 1fr; grid-template-rows: auto auto auto auto; }
  .col-chart { grid-column: 1; grid-row: 1; }
  .col-book { grid-column: 1; grid-row: 2; height: 480px; }
  .col-entry { grid-column: 1; grid-row: 3; }
  .bottom-panel { grid-column: 1; grid-row: 4; }
}
@media (max-width: 760px) {
  main { grid-template-columns: 1fr; }
  .soon-cell { display: none; }
  header { gap: 8px; }
}

.panel {
  background: var(--panel);
  border: 1px solid var(--edge);
  border-radius: 10px;
  padding: 10px 12px;
}
h2 {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  margin: 0 0 8px;
}

/* ---------------- panel tabs ---------------- */
.panel-tabs { display: flex; gap: 2px; border-bottom: 1px solid var(--edge); margin: -2px 0 8px; }
.ptab {
  background: none;
  border: none;
  color: var(--muted);
  font: inherit;
  font-size: 12px;
  font-weight: 600;
  padding: 6px 10px;
  cursor: pointer;
  border-bottom: 2px solid transparent;
}
.ptab:hover { color: var(--text); }
.ptab.active { color: var(--accent-soft); border-bottom-color: var(--accent); }
.ptab.side-buy.active { color: var(--green); border-bottom-color: var(--green); }
.ptab.side-sell.active { color: var(--red); border-bottom-color: var(--red); }

/* ---------------- chart ---------------- */
.chart-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 6px; }
.ivl { display: flex; gap: 2px; }
.ivl button {
  background: none;
  border: 1px solid transparent;
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
  padding: 3px 9px;
  border-radius: 6px;
  cursor: pointer;
}
.ivl button:hover { color: var(--text); }
.ivl button.active { color: var(--accent-soft); background: var(--accent-dim); border-color: var(--accent); }
.attrib { font-size: 10px; margin-top: 4px; }
.attrib a { color: var(--muted); }

/* ---------------- tables / book ---------------- */
/* The book fills the trading row's full height with the ladder anchored
 * to the last-price divider, KuCoin-style: best ask hugs the divider from
 * above, best bid from below, spare space pushed to the panel edges. */
.col-book { display: flex; flex-direction: column; min-height: 0; }
#ptab-book { flex: 1; min-height: 0; display: flex; flex-direction: column; overflow: hidden; }
.asks-wrap { flex: 1; min-height: 0; overflow: hidden; display: flex; flex-direction: column; justify-content: flex-end; }
.bids-wrap { flex: 1; min-height: 0; overflow: hidden; }
#ptab-tape { flex: 1; min-height: 0; overflow-y: auto; scrollbar-width: thin; }
#ptab-tape.hidden, #ptab-book.hidden { display: none; }
/* Fixed layout so the header table and the two ladder tables align. */
.book { table-layout: fixed; }
.book th:nth-child(1), .book td:nth-child(1) { width: 40%; }
.book th:nth-child(2), .book td:nth-child(2) { width: 32%; }
.book th:nth-child(3), .book td:nth-child(3) { width: 28%; }

table { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
th, td { text-align: right; padding: 2.5px 6px; font-size: 12.5px; }
th { color: var(--muted); font-weight: 500; border-bottom: 1px solid var(--edge); font-size: 11px; }
td:first-child, th:first-child { text-align: left; }
.book td.ask { color: var(--red); }
.book td.bid { color: var(--green); }
.book tr { background-repeat: no-repeat; }
.book tbody tr { cursor: pointer; }
.book tbody tr:hover td { background: rgba(139, 92, 246, 0.08); }
.lastrow {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 5px 6px;
  border-top: 1px dashed var(--edge);
  border-bottom: 1px dashed var(--edge);
  margin: 3px 0;
}
.lastrow span:first-child { font-size: 17px; font-weight: 700; font-variant-numeric: tabular-nums; }
.lastrow .muted { font-size: 10px; }
.ratio { display: flex; height: 5px; border-radius: 3px; overflow: hidden; margin-top: 8px; background: var(--panel-2); }
.ratio-buy { background: var(--green); }
.ratio-sell { background: var(--red); }
.ratio-labels { display: flex; justify-content: space-between; font-size: 11px; margin-top: 3px; font-variant-numeric: tabular-nums; }
.buy-text { color: var(--green); }
.sell-text { color: var(--red); }

/* ---------------- inputs / buttons ---------------- */
input, button { font: inherit; border-radius: 8px; }
input {
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--edge);
  padding: 8px 10px;
}
input:focus { outline: 1px solid var(--accent); }
input.bad { border-color: var(--red); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
button:active { transform: translateY(1px); }
label { display: block; margin: 8px 0 0; color: var(--muted); font-size: 12px; }
label input { width: 100%; margin-top: 4px; }
button { cursor: pointer; border: 1px solid var(--edge); background: var(--panel-2); color: var(--text); padding: 8px 12px; }
button:hover { border-color: var(--accent); }
.btn-accent { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 600; }
.btn-accent:hover { background: var(--accent-soft); }

/* ---------------- order entry ---------------- */
/* Big Buy | Sell segmented pill — the KuCoin control. */
.side-pills {
  display: flex;
  background: var(--panel-2);
  border: 1px solid var(--edge);
  border-radius: 10px;
  padding: 3px;
  gap: 3px;
}
.side-pills button {
  flex: 1;
  height: 40px;
  font-size: 15px;
  font-weight: 700;
  border: none;
  background: none;
  color: var(--muted);
  border-radius: 8px;
}
.side-pills .pill-buy.active { background: var(--green); color: #fff; }
.side-pills .pill-sell.active { background: var(--red); color: #fff; }

.otype { display: flex; gap: 12px; margin-top: 10px; border-bottom: 1px solid var(--edge); }
.otype button {
  background: none;
  border: none;
  padding: 5px 2px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--muted);
  border-bottom: 2px solid transparent;
  border-radius: 0;
}
.otype button.active { color: var(--text); border-bottom-color: var(--accent); }
.otype button:disabled { cursor: default; opacity: 0.55; }

.entry-meta {
  display: flex;
  justify-content: space-between;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 8px;
  font-size: 11.5px;
  min-height: 15px;
}
.btn-buy, .btn-sell { width: 100%; margin-top: 10px; font-weight: 700; border: none; color: #fff; }
.btn-buy { background: var(--green); }
.btn-sell { background: var(--red); }
.btn-buy:hover, .btn-sell:hover { filter: brightness(1.12); }
button.big { height: 44px; font-size: 15px; }

/* ---------------- asset overview (entry column foot) ---------------- */
/* Bleeds to the entry panel's edges (cancels its 10px/12px padding) so it
 * reads as its own footer card, like KuCoin's Asset Overview block. */
.asset-overview {
  margin: auto -12px -10px;
  border-top: 1px solid var(--edge);
  background: var(--panel-2);
  border-radius: 0 0 10px 10px;
  padding: 14px 16px 14px;
}
.asset-overview h2 { margin-bottom: 10px; }
.ao-row { display: flex; justify-content: space-between; align-items: baseline; padding: 6px 0; font-variant-numeric: tabular-nums; font-size: 12.5px; }
.ao-row .sym { font-weight: 700; }
.ao-row .amt { text-align: right; }
.ao-row .amt .sub { color: var(--muted); font-size: 11px; }
.ao-actions { display: flex; gap: 8px; margin-top: 12px; }
.ao-actions button { flex: 1; font-size: 12px; padding: 9px 4px; }
.ao-actions button:disabled { opacity: 0.55; cursor: default; }
.status { min-height: 18px; margin-top: 10px; font-size: 12.5px; word-break: break-word; }
.status.ok { color: var(--green); }
.status.err { color: var(--red); }
.muted { color: var(--muted); }
.fee-note { font-size: 11px; margin-top: 10px; border-top: 1px solid var(--edge); padding-top: 8px; }
.cancel-btn { padding: 2px 8px; font-size: 11px; border-radius: 6px; }
.cancel-btn:hover { border-color: var(--red); color: var(--red); }

/* ---------------- bottom panel (inside the main grid) ---------------- */
.bottom-panel { min-height: 0; overflow-y: auto; scrollbar-width: thin; }

/* ---------------- coming-soon pages ---------------- */
.coming {
  max-width: 620px;
  margin: 7vh auto;
  padding: 36px;
  background: var(--panel);
  border: 1px solid var(--edge);
  border-radius: 14px;
}
.coming-logo { margin-bottom: 10px; }
.coming-badge {
  display: inline-block;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent-soft);
  background: var(--accent-dim);
  border: 1px solid var(--accent);
  border-radius: 999px;
  padding: 3px 12px;
  margin: 0 0 14px 10px;
}
.coming h1 { font-size: 26px; margin-bottom: 12px; }
.coming .accent { color: var(--accent-soft); }
.coming p { color: var(--muted); margin-bottom: 14px; }
.coming ul { list-style: none; }
.coming li { padding: 7px 0 7px 24px; position: relative; }
.coming li::before { content: "◆"; position: absolute; left: 2px; color: var(--accent); font-size: 10px; top: 11px; }

footer { padding: 8px 16px; font-size: 11.5px; border-top: 1px solid var(--edge); background: var(--panel); }

/* ---------------- wallet login (Task 16) ---------------- */

#ops-toggle {
  background: none;
  border: 1px solid var(--edge);
  color: var(--muted);
  border-radius: 6px;
  padding: 5px 9px;
  cursor: pointer;
}
#ops-toggle:hover { color: var(--text); border-color: var(--accent-dim); }
#ops-key-wrap { display: inline-flex; gap: 6px; align-items: center; }
#ops-key-wrap.hidden { display: none; }

.wallet-modal {
  position: fixed;
  inset: 0;
  background: rgba(6, 4, 12, 0.72);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 60;
}
.wallet-modal.hidden { display: none; }
.wallet-modal-box {
  width: min(420px, calc(100vw - 32px));
  background: var(--panel-2);
  border: 1px solid var(--edge);
  border-radius: 12px;
  padding: 18px;
}
.wallet-modal-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 14px;
}
#wm-close {
  background: none;
  border: none;
  color: var(--muted);
  font-size: 14px;
  cursor: pointer;
}
#wm-close:hover { color: var(--text); }
.wm-wallet {
  display: block;
  width: 100%;
  text-align: left;
  background: var(--panel);
  border: 1px solid var(--edge);
  color: var(--text);
  border-radius: 8px;
  padding: 11px 14px;
  margin-bottom: 8px;
  font-size: 13.5px;
  cursor: pointer;
}
.wm-wallet:hover { border-color: var(--accent); background: var(--accent-dim); }
.wm-none, .wm-wait, .wm-pick, .wm-sign { font-size: 12.5px; margin-bottom: 10px; }
.wm-message {
  background: var(--bg);
  border: 1px solid var(--edge);
  border-radius: 8px;
  padding: 10px;
  font-size: 11px;
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-all;
  color: var(--muted);
}
#wm-error { min-height: 18px; margin-top: 4px; }

.wallets { margin-top: 12px; border-top: 1px solid var(--edge); padding-top: 10px; }
.wallet-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 0;
  font-size: 12.5px;
}
.wallet-chain {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-radius: 999px;
  padding: 2px 8px;
  border: 1px solid var(--edge);
  color: var(--muted);
}
.wallet-chain.reef { color: var(--accent-soft); border-color: var(--accent-dim); }
.wallet-chain.solana { color: var(--green); border-color: var(--edge); }
.wallet-addr { font-family: ui-monospace, monospace; }

/* ---- market wallets + coverage gate (Task 16 refinement) ---- */

.mw-leg {
  padding: 8px 0;
  border-bottom: 1px solid var(--edge);
}
.mw-leg:last-child { border-bottom: none; }
.mw-head {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 5px;
}
.mw-asset { font-weight: 600; font-size: 13px; }
.mw-addr {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  padding: 2px 0;
}
.mw-ok { color: var(--green); font-weight: 700; }
.mw-connect {
  display: block;
  width: 100%;
  background: var(--accent-dim);
  border: 1px solid var(--accent);
  color: var(--accent-soft);
  border-radius: 7px;
  padding: 7px 10px;
  font-size: 12.5px;
  cursor: pointer;
}
.mw-connect:hover { background: var(--accent); color: #fff; }

.coverage-note {
  font-size: 12px;
  color: var(--accent-soft);
  background: var(--accent-dim);
  border: 1px solid var(--accent);
  border-radius: 7px;
  padding: 7px 10px;
  margin-bottom: 8px;
}
.coverage-note.hidden { display: none; }

#entry-submit:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  filter: grayscale(0.4);
}