/* ═══════════════════════════════════════════
   OPTIONS INTELLIGENCE PAGE — oi-* classes
   ═══════════════════════════════════════════ */
.oi-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 14px;
}

.oi-layout {
  display: flex;
  height: calc(100vh - 56px);
  overflow: hidden;
}
.oi-sidebar {
  width: 204px;
  flex-shrink: 0;
  border-right: 1px solid var(--border);
  background: var(--bg2);
  display: flex;
  flex-direction: column;
  transition: width 0.25s ease;
  overflow: hidden;
}
.oi-sidebar.collapsed { width: 44px; }
.oi-sb-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 11px 12px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.oi-sb-title {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--text3);
  white-space: nowrap;
  overflow: hidden;
  transition: opacity 0.2s;
}
.oi-sidebar.collapsed .oi-sb-title { opacity: 0; }
.oi-sb-toggle {
  background: none;
  border: none;
  color: var(--text3);
  cursor: pointer;
  padding: 0;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  transition: transform 0.25s;
}
.oi-sidebar.collapsed .oi-sb-toggle { transform: rotate(180deg); }
.oi-sb-list { overflow-y: auto; flex: 1; padding: 6px; }
.oi-sb-ticker {
  padding: 9px 8px 7px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.15s;
  margin-bottom: 3px;
  border: 1px solid transparent;
  white-space: nowrap;
  overflow: hidden;
}
.oi-sb-ticker:hover { background: var(--surface); }
.oi-sb-ticker.active { background: var(--accent-glow); border-color: var(--accent-border); }
.oi-sb-ticker-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 3px; }
.oi-sb-sym { font-family: var(--font-mono); font-size: 12px; font-weight: 500; color: var(--text); }
.oi-sb-price { font-family: var(--font-mono); font-size: 11px; color: var(--text2); }
.oi-sb-sparkline { display: block; margin: 3px 0 2px; }
.oi-sb-chg { font-family: var(--font-mono); font-size: 11px; }
.oi-sb-chg.pos { color: var(--accent); }
.oi-sb-chg.neg { color: var(--red); }
.oi-content { flex: 1; overflow-y: auto; padding: 24px 28px 32px; }
.oi-page-header { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 16px; gap: 16px; flex-wrap: wrap; }
.oi-page-title { font-family: var(--font-display); font-size: 22px; font-weight: 400; color: var(--text); margin: 0; }
.oi-page-title em { color: var(--accent); font-style: italic; }
.oi-page-sub { font-family: var(--font-mono); font-size: 11px; color: var(--text3); margin-top: 4px; }
.oi-expiry-row { display: flex; gap: 5px; flex-wrap: wrap; justify-content: flex-end; align-items: center; }
.oi-exp-pill {
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 5px 11px;
  border-radius: 20px;
  border: 1px solid var(--border2);
  background: var(--surface);
  color: var(--text2);
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
}
.oi-exp-pill:hover { border-color: var(--accent-border); color: var(--text); }
.oi-exp-pill.active { background: var(--accent-glow); border-color: var(--accent); color: var(--accent); }
.oi-ribbon {
  display: flex;
  align-items: stretch;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 14px;
  overflow: hidden;
}
.oi-ribbon-cell { flex: 1; padding: 11px 14px; text-align: center; }
.oi-ribbon-divider { width: 1px; background: var(--border); flex-shrink: 0; }
.oi-ribbon-label { font-family: var(--font-mono); font-size: 11px; color: var(--text3); letter-spacing: .12em; text-transform: uppercase; margin-bottom: 5px; }
.oi-ribbon-val { font-family: var(--font-display); font-size: 17px; font-weight: 400; color: var(--text); }
.oi-seg-group { display: flex; background: var(--bg2); border-radius: 20px; padding: 2px; gap: 2px; }
.oi-seg {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  padding: 5px 12px;
  border-radius: 18px;
  border: none;
  background: none;
  color: var(--text3);
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}
.oi-seg.active { background: var(--surface); color: var(--text); box-shadow: 0 1px 4px rgba(0,0,0,0.3); }
.oi-chart-box { height: 280px; padding: 4px 8px 8px; }
.oi-lower-grid { display: grid; grid-template-columns: 1fr 360px; gap: 14px; margin-bottom: 14px; }
.oi-greeks-tbl { width: 100%; border-collapse: collapse; font-family: var(--font-mono); font-size: 12px; }
.oi-greeks-tbl th {
  background: var(--bg2);
  color: var(--text3);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  padding: 8px 10px;
  text-align: right;
  border-bottom: 1px solid var(--border);
}
.oi-greeks-tbl th:first-child { text-align: left; }
.oi-greeks-tbl td { padding: 6px 10px; text-align: right; border-bottom: 1px solid var(--border); color: var(--text2); font-size: 12px; }
.oi-greeks-tbl td:first-child { text-align: left; color: var(--text); }
.oi-greeks-tbl tr.atm-row td { background: var(--accent-glow); color: var(--text); }
.oi-greeks-tbl tr.atm-row td:first-child { color: var(--accent); }
.oi-trade-btn {
  background: none;
  border: 1px solid var(--border2);
  color: var(--text3);
  cursor: pointer;
  padding: 2px 7px;
  border-radius: 4px;
  font-size: 12px;
  font-family: var(--font-mono);
  transition: all 0.15s;
}
.oi-trade-btn:hover { border-color: var(--accent); color: var(--accent); }
.oi-strat-badge {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  padding: 4px 10px;
  border-radius: 10px;
  background: var(--accent-glow);
  border: 1px solid var(--accent-border);
  color: var(--accent);
}
.oi-strat-badge.bearish { background: rgba(230,57,70,0.1); border-color: rgba(230,57,70,0.25); color: var(--red); }
.oi-strat-badge.neutral { background: rgba(244,162,97,0.1); border-color: rgba(244,162,97,0.25); color: var(--amber); }
.oi-strat-body { padding: 12px 20px 16px; }
.oi-stat-row { display: flex; justify-content: space-between; align-items: center; padding: 5px 0; border-bottom: 1px solid var(--border); }
.oi-stat-row:last-child { border-bottom: none; }
.oi-stat-label { font-family: var(--font-mono); font-size: 12px; color: var(--text3); text-transform: uppercase; letter-spacing: .1em; }
.oi-stat-val { font-family: var(--font-mono); font-size: 12px; color: var(--text); }
.oi-stat-val.green { color: var(--accent); }
.oi-stat-val.red { color: var(--red); }
.oi-stat-val.amber { color: var(--amber); }
.oi-flow-row { padding: 11px 20px; border-bottom: 1px solid var(--border); transition: background 0.15s; border-left: 2px solid transparent; }
.oi-flow-row:last-child { border-bottom: none; }
.oi-flow-row:hover { background: var(--surface); }
.oi-flow-row.extreme { border-left-color: var(--amber); animation: oiPulse 2.2s ease-in-out infinite; }
.oi-flow-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 3px; }
.oi-flow-ticker { font-family: var(--font-mono); font-size: 12px; font-weight: 500; color: var(--text); }
.oi-flow-spike { font-family: var(--font-mono); font-size: 11px; padding: 2px 8px; border-radius: 10px; }
.oi-flow-spike.extreme { background: rgba(244,162,97,0.12); color: var(--amber); border: 1px solid rgba(244,162,97,0.3); }
.oi-flow-spike.unusual { background: var(--accent-glow); color: var(--accent); border: 1px solid var(--accent-border); }
.oi-flow-desc { font-size: 11px; color: var(--text2); margin-bottom: 5px; line-height: 1.4; }
.oi-flow-tags { display: flex; gap: 5px; flex-wrap: wrap; }
.oi-gauge-label { font-family: var(--font-display); font-size: 20px; color: var(--text); margin-top: 6px; }
.oi-gauge-sub { font-family: var(--font-mono); font-size: 11px; color: var(--text3); margin-top: 3px; letter-spacing: .1em; text-transform: uppercase; }
.oi-empty { padding: 36px; text-align: center; color: var(--text3); font-family: var(--font-mono); font-size: 11px; }

/* Tooltip system */
.oi-tip {
  cursor: help;
}
span.oi-tip, div.oi-tip {
  display: inline-flex;
  align-items: center;
  gap: 3px;
}
.oi-tip-icon { font-size: 11px; color: var(--text3); line-height: 1; }

/* IV source badge */
.oi-iv-badge {
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 2px 6px;
  border-radius: 8px;
  margin-left: 6px;
  vertical-align: middle;
}
.oi-iv-badge.live   { background: var(--accent-glow); color: var(--accent); border: 1px solid var(--accent-border); }
.oi-iv-badge.yf     { background: rgba(72,149,239,0.1); color: #4895EF; border: 1px solid rgba(72,149,239,0.25); }
.oi-iv-badge.hv     { background: rgba(244,162,97,0.1); color: var(--amber); border: 1px solid rgba(244,162,97,0.25); }

/* Strategy plain-English section */
.oi-strat-explain {
  background: var(--bg2);
  border-top: 1px solid var(--border);
  padding: 10px 20px 12px;
  font-size: 12px;
  color: var(--text2);
  line-height: 1.6;
}
.oi-strat-explain strong { color: var(--text); }
.oi-strat-win-lose {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 8px;
}
.oi-wl-cell {
  background: var(--surface);
  border-radius: 5px;
  padding: 6px 8px;
  font-size: 11px;
  font-family: var(--font-mono);
}
.oi-wl-cell .oi-wl-label { font-size: 11px; letter-spacing:.1em; text-transform:uppercase; margin-bottom:3px; }
.oi-wl-cell.win .oi-wl-label { color: var(--accent); }
.oi-wl-cell.lose .oi-wl-label { color: var(--red); }
.oi-wl-cell .oi-wl-text { color: var(--text2); line-height: 1.4; }