/* =========================================================
   LooksBack — Professional Trading Terminal Stylesheet
   Dark terminal aesthetic, pixel-perfect spacing
   ========================================================= */

:root {
  --c-bg:          #0d1117;
  --c-surface:     #161b22;
  --c-surface2:    #1c2128;
  --c-surface3:    #22272e;
  --c-border:      #30363d;
  --c-border2:     #21262d;
  --c-text:        #e6edf3;
  --c-muted:       #7d8590;
  --c-muted2:      #484f58;
  --c-gold:        #d4a853;
  --c-blue:        #388bfd;
  --c-blue-dim:    rgba(56,139,253,0.15);
  --c-green:       #3fb950;
  --c-green-dim:   rgba(63,185,80,0.12);
  --c-red:         #f85149;
  --c-red-dim:     rgba(248,81,73,0.12);

  --font-ui:       'IBM Plex Sans', system-ui, sans-serif;
  --font-mono:     'IBM Plex Mono', 'Courier New', monospace;
  --font-display:  'Playfair Display', Georgia, serif;

  --bar-h:         44px;
  --sidebar-w:     248px;
  --detail-w:      320px;
  --radius:        6px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; overflow: hidden; background: var(--c-bg); }
body { font-family: var(--font-ui); font-size: 13px; color: var(--c-text); display: flex; flex-direction: column; }

/* ── TOPBAR ─────────────────────────────────────────────── */
.topbar {
  height: var(--bar-h);
  min-height: var(--bar-h);
  background: var(--c-surface);
  border-bottom: 1px solid var(--c-border);
  display: flex;
  align-items: center;
  gap: 0;
  padding: 0 0 0 14px;
  z-index: 200;
  overflow: hidden;
}

.t-logo {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  color: var(--c-gold);
  text-decoration: none;
  letter-spacing: 0.3px;
  white-space: nowrap;
  flex-shrink: 0;
  padding-right: 14px;
  border-right: 1px solid var(--c-border);
  margin-right: 10px;
}
.t-logo em { color: var(--c-muted); font-style: normal; }

/* Asset tabs */
.t-assets {
  display: flex;
  align-items: stretch;
  height: 100%;
  gap: 0;
  flex-shrink: 0;
}
.t-asset {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 0 12px;
  border: none;
  background: transparent;
  color: var(--c-muted);
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: color .12s, border-color .12s;
  white-space: nowrap;
  position: relative;
}
.t-asset:hover { color: var(--c-text); }
.t-asset.active { color: var(--c-text); border-bottom-color: var(--c-blue); }
.t-asset .dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
  opacity: 0.7;
}
.t-asset.active .dot { opacity: 1; }

/* Separator */
.t-sep {
  width: 1px;
  height: 20px;
  background: var(--c-border);
  margin: 0 8px;
  flex-shrink: 0;
}

/* Timeframe buttons */
.t-tf {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-shrink: 0;
}
.t-tf button {
  background: transparent;
  border: none;
  color: var(--c-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 400;
  padding: 4px 7px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all .12s;
}
.t-tf button:hover { color: var(--c-text); background: var(--c-surface3); }
.t-tf button.active { color: var(--c-blue); background: var(--c-blue-dim); font-weight: 700; }

/* Compare */
.t-compare-wrap { position: relative; margin-left: 6px; flex-shrink: 0; }
.t-compare-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  background: transparent;
  border: 1px solid var(--c-border);
  color: var(--c-muted);
  font-family: var(--font-ui);
  font-size: 11px;
  font-weight: 500;
  padding: 4px 10px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all .12s;
  white-space: nowrap;
}
.t-compare-btn:hover { color: var(--c-text); border-color: var(--c-muted2); }
.t-compare-btn.on { color: var(--c-blue); border-color: var(--c-blue); }

.t-compare-menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 4px;
  min-width: 170px;
  z-index: 300;
  box-shadow: 0 8px 32px rgba(0,0,0,0.6);
}
.t-compare-menu[hidden] { display: none; }
.cmp-opt {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 8px;
  border-radius: 4px;
  cursor: pointer;
  transition: background .1s;
  font-size: 12px;
  color: var(--c-muted);
}
.cmp-opt:hover { background: var(--c-surface3); color: var(--c-text); }
.cmp-opt.on { background: var(--c-blue-dim); color: var(--c-blue); }
.cmp-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }

/* Right side of topbar */
.t-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 8px;
  padding-right: 14px;
  flex-shrink: 0;
}
.t-price-display {
  display: flex;
  align-items: baseline;
  gap: 8px;
}
.t-price-val {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 400;
  color: var(--c-text);
  letter-spacing: -0.3px;
}
.t-price-chg {
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 2px 6px;
  border-radius: 4px;
}
.t-price-chg.up   { color: var(--c-green); background: var(--c-green-dim); }
.t-price-chg.down { color: var(--c-red);   background: var(--c-red-dim);   }

/* ── WORKSPACE ──────────────────────────────────────────── */
.workspace {
  flex: 1;
  display: flex;
  overflow: hidden;
  min-height: 0;
}

/* ── LEFT PANEL ─────────────────────────────────────────── */
.left-panel {
  width: var(--sidebar-w);
  min-width: var(--sidebar-w);
  background: var(--c-surface);
  border-right: 1px solid var(--c-border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.lp-head {
  padding: 10px 12px 8px;
  border-bottom: 1px solid var(--c-border2);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.lp-title {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--c-muted);
}

/* Layer toggles */
.lp-filters {
  display: flex;
  gap: 5px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--c-border2);
}
.lp-tag {
  flex: 1;
  text-align: center;
  padding: 4px 0;
  border-radius: 4px;
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .07em;
  cursor: pointer;
  transition: all .12s;
  border: 1px solid var(--c-border);
  color: var(--c-muted);
  background: transparent;
  user-select: none;
}
.lp-tag:hover { color: var(--c-text); }
.lp-tag[data-type="finance"].on  { background: var(--c-red-dim);   color: #f85149; border-color: rgba(248,81,73,.4); }
.lp-tag[data-type="history"].on  { background: var(--c-blue-dim);  color: #79c0ff; border-color: rgba(121,192,255,.4); }
.lp-tag[data-type="tech"].on     { background: var(--c-green-dim); color: #3fb950; border-color: rgba(63,185,80,.4); }

/* Events list */
.lp-events {
  flex: 1;
  overflow-y: auto;
  overscroll-behavior: contain;
}
.lp-events::-webkit-scrollbar { width: 3px; }
.lp-events::-webkit-scrollbar-thumb { background: var(--c-surface3); }

.ev-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 8px 12px;
  cursor: pointer;
  border-left: 2px solid transparent;
  transition: background .1s;
}
.ev-item:hover { background: var(--c-surface2); }
.ev-item.on { background: var(--c-blue-dim); border-left-color: var(--c-blue); }

.ev-item[data-type="finance"]  { --tc: #f85149; }
.ev-item[data-type="history"]  { --tc: #79c0ff; }
.ev-item[data-type="tech"]     { --tc: #3fb950; }
.ev-item.on { border-left-color: var(--tc); background: color-mix(in srgb, var(--tc) 6%, transparent); }

.ev-icon { font-size: 15px; flex-shrink: 0; margin-top: 1px; }
.ev-info { flex: 1; min-width: 0; }
.ev-yr   { font-family: var(--font-mono); font-size: 10px; color: var(--tc, var(--c-muted)); margin-bottom: 1px; }
.ev-name { font-size: 11px; font-weight: 500; color: var(--c-text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* ── CHART PANE ─────────────────────────────────────────── */
.chart-pane {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
  background: var(--c-bg);
  min-width: 0;
}

.chart-canvas-wrap {
  flex: 1;
  position: relative;
  min-height: 0;
  overflow: hidden;
}

canvas#lbChart {
  display: block;
  width: 100% !important;
  height: 100% !important;
}

/* Crosshair tooltip */
.lb-tip {
  position: absolute;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 8px 11px;
  pointer-events: none;
  opacity: 0;
  transition: opacity .08s;
  z-index: 40;
  min-width: 155px;
  box-shadow: 0 4px 20px rgba(0,0,0,.5);
}
.lb-tip.show { opacity: 1; }
.lb-tip-yr { font-family: var(--font-mono); font-size: 10px; color: var(--c-muted); margin-bottom: 5px; }
.lb-tip-row { display: flex; align-items: center; gap: 6px; margin-bottom: 3px; }
.lb-tip-dot { width: 7px; height: 7px; border-radius: 50%; flex-shrink: 0; }
.lb-tip-lbl { color: var(--c-muted); font-size: 11px; flex: 1; }
.lb-tip-val { font-family: var(--font-mono); font-size: 12px; color: var(--c-text); }

/* ── DETAIL PANEL ───────────────────────────────────────── */
.detail-panel {
  width: 0;
  min-width: 0;
  background: var(--c-surface);
  border-left: 1px solid var(--c-border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: width .22s cubic-bezier(.4,0,.2,1), min-width .22s cubic-bezier(.4,0,.2,1);
}
.detail-panel.open {
  width: var(--detail-w);
  min-width: var(--detail-w);
}

.dp-inner {
  width: var(--detail-w);
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
}

.dp-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px 10px;
  border-bottom: 1px solid var(--c-border2);
  flex-shrink: 0;
}
.dp-head-title {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--c-muted);
}
.dp-close {
  background: transparent;
  border: none;
  color: var(--c-muted);
  font-size: 18px;
  cursor: pointer;
  line-height: 1;
  padding: 0 2px;
  transition: color .1s;
}
.dp-close:hover { color: var(--c-text); }

.dp-scroll {
  flex: 1;
  overflow-y: auto;
  padding: 14px;
}
.dp-scroll::-webkit-scrollbar { width: 3px; }
.dp-scroll::-webkit-scrollbar-thumb { background: var(--c-surface3); }

/* Event detail */
.dp-emoji { font-size: 24px; margin-bottom: 6px; }
.dp-badge {
  display: inline-block;
  font-size: 9px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  padding: 2px 6px;
  border-radius: 3px;
  margin-bottom: 8px;
}
.dp-badge.finance { color: #f85149; background: var(--c-red-dim); }
.dp-badge.history { color: #79c0ff; background: var(--c-blue-dim); }
.dp-badge.tech    { color: #3fb950; background: var(--c-green-dim); }

.dp-title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--c-text);
  margin-bottom: 5px;
}
.dp-short {
  font-size: 12px;
  color: var(--c-muted);
  line-height: 1.6;
  margin-bottom: 10px;
  font-style: italic;
}
.dp-desc {
  font-size: 12px;
  color: var(--c-text);
  line-height: 1.75;
  margin-bottom: 14px;
}
.dp-note {
  border-left: 3px solid var(--c-gold);
  background: rgba(212,168,83,.07);
  padding: 9px 11px;
  border-radius: 0 4px 4px 0;
  font-size: 11px;
  color: var(--c-gold);
  line-height: 1.6;
  margin-bottom: 18px;
}

/* Calc */
.dp-rule { height: 1px; background: var(--c-border2); margin: 14px 0; }
.dp-calc-lbl {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--c-muted);
  margin-bottom: 10px;
}

.calc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 8px;
}
.cf { display: flex; flex-direction: column; gap: 3px; }
.cf label {
  font-size: 9px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--c-muted);
}
.cf input, .cf select {
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  color: var(--c-text);
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 6px 8px;
  border-radius: 4px;
  width: 100%;
  transition: border-color .12s;
}
.cf input:focus, .cf select:focus {
  outline: none;
  border-color: var(--c-blue);
}
.cf select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='9' height='5'%3E%3Cpath d='M0 0l4.5 5L9 0z' fill='%237d8590'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 8px center;
  padding-right: 22px;
  cursor: pointer;
}
.cf-full { grid-column: 1 / -1; }

.calc-btn {
  width: 100%;
  background: var(--c-blue);
  color: #fff;
  border: none;
  padding: 8px;
  border-radius: 5px;
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  margin-top: 2px;
  transition: opacity .12s;
  letter-spacing: .02em;
}
.calc-btn:hover { opacity: .85; }

.calc-out {
  display: none;
  margin-top: 12px;
  padding: 12px;
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
}
.calc-out.show { display: block; }

.co-from { font-size: 10px; color: var(--c-muted); margin-bottom: 4px; }
.co-val  {
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 400;
  letter-spacing: -.5px;
  margin-bottom: 3px;
}
.co-roi  { font-family: var(--font-mono); font-size: 11px; color: var(--c-muted); margin-bottom: 10px; }
.co-roi b { color: var(--c-green); }

.share-btn {
  width: 100%;
  background: transparent;
  border: 1px solid var(--c-border);
  color: var(--c-muted);
  padding: 6px 10px;
  border-radius: 4px;
  font-size: 11px;
  cursor: pointer;
  transition: all .12s;
}
.share-btn:hover { border-color: var(--c-gold); color: var(--c-gold); }

/* Footer in panel */
.dp-footer {
  padding: 12px 14px;
  border-top: 1px solid var(--c-border2);
  flex-shrink: 0;
}
.dp-footer p {
  font-size: 10px;
  color: var(--c-muted2);
  line-height: 1.6;
}
.dp-footer a { color: var(--c-gold); text-decoration: none; }

/* ── RESPONSIVE ─────────────────────────────────────────── */
@media (max-width: 860px) {
  .left-panel { display: none; }
  :root { --detail-w: min(320px, 100vw); }
}
@media (max-width: 560px) {
  .t-asset span { display: none; }
  :root { --bar-h: 40px; }
}