/* ==========================================================================
   drawer-sheet.css — Bottom Sheet System
   "Obsidian & Champagne" — myTradingMCP Luxury Edition

   Architecture:
   - Chat IA          → right-side drawer (unchanged, existing layout.css rules)
   - Instrument detail → bottom sheet (full-width, 3-column)
   - Portfolio detail  → bottom sheet (KPI strip + table)
   - Log file viewer   → bottom sheet (terminal mode)

   Detection: CSS :has() identifies content type from JS-injected class names.
   JS complement: drawer-sheet.js adds .drawer--sheet, manages backdrop.
   No drawer.js modifications required.
   ========================================================================== */

/* ==========================================================================
   1. BACKDROP
   ========================================================================== */

.sheet-backdrop {
  position: fixed;
  inset: 0;
  z-index: 1399; /* just below drawer z-index 1400 */
  background: rgba(0, 0, 0, 0.52);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 280ms var(--ease-out-expo, cubic-bezier(0.16, 1, 0.3, 1));
}

.sheet-backdrop.is-visible {
  opacity: 1;
  pointer-events: all;
  cursor: pointer;
}

/* ==========================================================================
   2. BOTTOM SHEET — Positioning override
   Applied via .drawer--sheet class added by drawer-sheet.js
   ========================================================================== */

#ptf-drawer.drawer--sheet {
  /* Override right-side position */
  top: auto !important;
  left: 0 !important;
  right: 0 !important;
  bottom: 0 !important;

  /* Full width, controlled height */
  width: 100% !important;
  height: var(--sheet-h, 72vh);
  max-height: 88vh;
  min-height: 320px;

  /* Shape */
  border-radius: var(--radius-xl, 16px) var(--radius-xl, 16px) 0 0;
  border-left: none !important;
  border-right: none !important;
  border-bottom: none !important;
  border-top: 1px solid var(--color-border-gold, rgba(201, 169, 110, 0.30));

  /* Gold accent line at top */
  background-image: linear-gradient(
    90deg,
    transparent 10%,
    rgba(201, 169, 110, 0.12) 50%,
    transparent 90%
  );
  background-repeat: no-repeat;
  background-position: top center;
  background-size: 100% 1px;

  /* Shadow */
  box-shadow: 0 -24px 80px rgba(0, 0, 0, 0.55),
              0 -1px 0 rgba(201, 169, 110, 0.18);

  /* Animation: slide from bottom (not right) */
  transform: translateY(100%) !important;
  transition: transform 300ms var(--ease-out-expo, cubic-bezier(0.16, 1, 0.3, 1)) !important;

  /* Layout */
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

#ptf-drawer.drawer--sheet.is-open {
  transform: translateY(0) !important;
}

/* Disable push for bottom sheets */
body.drawer-push-open:has(#ptf-drawer.drawer--sheet) {
  --drawer-push-w: 0px !important;
}

/* Drag pill at top */
#ptf-drawer.drawer--sheet::before {
  content: "";
  display: block;
  width: 40px;
  height: 4px;
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.18);
  margin: 10px auto 0;
  flex-shrink: 0;
  cursor: ns-resize;
}

/* ==========================================================================
   3. UNIFIED DRAWER HEADER
   Consistent across all sheet types
   ========================================================================== */

/* Generic header used by instrument */
#ptf-drawer.drawer--sheet .drawer-header,
#ptf-drawer.drawer--sheet .instrument-drawer-header,
#ptf-drawer.drawer--sheet .log-drawer-header,
#ptf-drawer.drawer--sheet .ptf-drawer-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 1.5rem 0.75rem;
  border-bottom: 1px solid var(--color-border-light, rgba(240, 237, 230, 0.06));
  flex-shrink: 0;
  background: rgba(0, 0, 0, 0.08);
}

/* Kicker label */
#ptf-drawer.drawer--sheet .instrument-drawer-kicker {
  font-family: var(--font-sans);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--color-accent, #C9A96E);
  margin-bottom: 0.2rem;
}

/* Title (h2 in JS-generated markup) */
#ptf-drawer.drawer--sheet #ptf-drawer-title,
#ptf-drawer.drawer--sheet .ptf-drawer-title-text {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 400;
  letter-spacing: -0.025em;
  color: var(--color-text);
  margin: 0;
  line-height: 1.1;
}

/* Action buttons in header */
#ptf-drawer.drawer--sheet .drawer-actions,
#ptf-drawer.drawer--sheet .log-drawer-actions {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-shrink: 0;
}

/* ==========================================================================
   4. SCROLLABLE BODY
   ========================================================================== */

#ptf-drawer.drawer--sheet .drawer-body,
#ptf-drawer.drawer--sheet .ptf-drawer-body,
#ptf-drawer.drawer--sheet .log-drawer-body {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--color-border, rgba(240,237,230,0.08)) transparent;
}

#ptf-drawer.drawer--sheet .drawer-body::-webkit-scrollbar { width: 4px; }
#ptf-drawer.drawer--sheet .drawer-body::-webkit-scrollbar-track { background: transparent; }
#ptf-drawer.drawer--sheet .drawer-body::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 2px;
}

/* ==========================================================================
   5. INSTRUMENT SHEET — 3-column layout
   Classes injected by instrument.core.js
   ========================================================================== */

/* Shell wrapper */
#ptf-drawer.drawer--sheet .instrument-drawer-shell {
  height: 100%;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 0;
}

/* Main instrument container */
#ptf-drawer.drawer--sheet .instrument-drawer {
  display: flex;
  flex-direction: column;
  gap: 0;
  height: 100%;
}

/* HERO SECTION → 2-column on sheet */
#ptf-drawer.drawer--sheet .instrument-drawer__hero {
  display: grid;
  grid-template-columns: minmax(280px, 1.2fr) 1fr;
  gap: 0;
  border-bottom: 1px solid var(--color-border-light);
  flex-shrink: 0;
}

/* INFO GRID → 2-column for facts + history */
#ptf-drawer.drawer--sheet .instrument-info-grid {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 0;
  flex: 1;
  min-height: 0;
}

/* Portfolio position box → full width strip */
#ptf-drawer.drawer--sheet .instrument-drawer__box:has(.instrument-metrics--compact) {
  border-bottom: 1px solid var(--color-border-light);
  padding: 0.85rem 1.5rem;
}

/* Generic box */
#ptf-drawer.drawer--sheet .instrument-drawer__box {
  padding: 1rem 1.5rem;
  border-right: 1px solid var(--color-border-light);
  overflow: auto;
}

#ptf-drawer.drawer--sheet .instrument-drawer__box:last-child {
  border-right: none;
}

/* Instrument title (symbol) */
#ptf-drawer.drawer--sheet .instrument-drawer__title {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 400;
  letter-spacing: -0.04em;
  color: var(--color-accent);
  margin: 0 0 0.3rem;
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  flex-wrap: wrap;
}

#ptf-drawer.drawer--sheet .instrument-drawer__subtitle {
  font-size: var(--text-sm, 0.8125rem);
  color: var(--color-text-muted);
  line-height: 1.5;
  margin-bottom: 0.6rem;
}

/* Badge row */
#ptf-drawer.drawer--sheet .instrument-badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
}

/* Metrics grid — horizontal on sheet */
#ptf-drawer.drawer--sheet .instrument-metrics {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.6rem 1rem;
}

#ptf-drawer.drawer--sheet .instrument-metrics--compact {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

#ptf-drawer.drawer--sheet .instrument-metric {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}

#ptf-drawer.drawer--sheet .instrument-metric span {
  font-family: var(--font-sans);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-faint, rgba(240,237,230,0.28));
}

#ptf-drawer.drawer--sheet .instrument-metric strong {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 400;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.025em;
}

/* Sparkline — full column width */
#ptf-drawer.drawer--sheet .instrument-sparkline {
  width: 100%;
  height: 72px;
  margin-top: 0.85rem;
  color: var(--color-accent);
  display: block;
}

/* Section titles within boxes */
#ptf-drawer.drawer--sheet .instrument-drawer__box h3 {
  font-family: var(--font-sans);
  font-size: var(--text-xs, 0.6875rem);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin: 0 0 0.6rem;
}

/* Facts: key-value grid */
#ptf-drawer.drawer--sheet .instrument-facts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.45rem 1.5rem;
}

#ptf-drawer.drawer--sheet .instrument-fact {
  display: flex;
  flex-direction: column;
  gap: 0.05rem;
}

#ptf-drawer.drawer--sheet .instrument-fact label {
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--color-text-faint);
}

#ptf-drawer.drawer--sheet .instrument-fact div {
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-variant-numeric: tabular-nums;
  color: var(--color-text);
}

/* History table */
#ptf-drawer.drawer--sheet .instrument-detail-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-xs, 0.6875rem);
  font-family: var(--font-mono);
}

#ptf-drawer.drawer--sheet .instrument-detail-table thead th {
  font-family: var(--font-sans);
  font-size: 0.58rem;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  padding: 0.4rem 0.6rem;
  border-bottom: 1px solid var(--color-border);
  text-align: left;
  background: transparent;
  white-space: nowrap;
}

#ptf-drawer.drawer--sheet .instrument-detail-table tbody td {
  padding: 0.42rem 0.6rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.035);
  font-variant-numeric: tabular-nums;
  vertical-align: middle;
}

#ptf-drawer.drawer--sheet .instrument-detail-table tbody tr:last-child td {
  border-bottom: none;
}

/* ==========================================================================
   6. PORTFOLIO SHEET — KPI strip + table layout
   ========================================================================== */

#ptf-drawer.drawer--sheet .ptf-drawer-body.portfolio-page {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 0;
}

/* Summary zone (KPIs) → horizontal strip */
#ptf-drawer.drawer--sheet [data-zone="ptf:z-summary"] {
  flex-shrink: 0;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--color-border-light);
  background: rgba(0, 0, 0, 0.06);
}

/* Force horizontal KPI layout */
#ptf-drawer.drawer--sheet .ptf-hero {
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)) !important;
}

/* Tags/positions table section */
#ptf-drawer.drawer--sheet .ptf-tags-section {
  flex: 1;
  overflow-y: auto;
  padding: 1rem 1.5rem;
}

#ptf-drawer.drawer--sheet .ptf-tags-section h3 {
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin: 0 0 0.75rem;
}

/* Portfolio table in sheet: no min-width restriction */
#ptf-drawer.drawer--sheet .portfolio-table {
  min-width: 0 !important;
  width: 100%;
}

/* ==========================================================================
   7. LOG SHEET — Terminal layout
   ========================================================================== */

/* Header: filename + actions */
#ptf-drawer.drawer--sheet .log-drawer-header {
  flex-shrink: 0;
  flex-direction: column;
  gap: 0;
}

#ptf-drawer.drawer--sheet .log-drawer-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

#ptf-drawer.drawer--sheet .log-drawer-filename,
#ptf-drawer.drawer--sheet #ptf-drawer-title {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-accent);
  margin: 0;
}

#ptf-drawer.drawer--sheet .log-drawer-meta-row {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  padding-top: 0.35rem;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Search bar */
#ptf-drawer.drawer--sheet .log-drawer-search-wrap {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1.5rem;
  border-bottom: 1px solid var(--color-border-light);
  background: rgba(0, 0, 0, 0.06);
  flex-shrink: 0;
}

#ptf-drawer.drawer--sheet .log-drawer-search {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  min-height: auto;
  padding: 0;
}

#ptf-drawer.drawer--sheet .log-drawer-search::placeholder {
  color: var(--color-text-faint);
}

#ptf-drawer.drawer--sheet .log-drawer-search-count {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  white-space: nowrap;
}

/* Log content body */
#ptf-drawer.drawer--sheet .log-drawer-body {
  flex: 1;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-mono);
  font-size: var(--text-xs, 0.6875rem);
  line-height: 1.72;
  white-space: pre;
  color: var(--color-text-dim, rgba(240,237,230,0.65));
  overflow-x: auto;
  overflow-y: auto;
  background: rgba(0, 0, 0, 0.18);
}

/* Highlight lines */
#ptf-drawer.drawer--sheet .log-drawer-body .log-line--error  { color: var(--color-danger); }
#ptf-drawer.drawer--sheet .log-drawer-body .log-line--warn   { color: var(--color-warning); }
#ptf-drawer.drawer--sheet .log-drawer-body .log-line--debug  { color: var(--color-text-faint); }

/* Search highlights */
#ptf-drawer.drawer--sheet mark {
  background: rgba(201, 169, 110, 0.30);
  color: var(--color-accent);
  border-radius: 2px;
  padding: 0 1px;
}

/* Loading state */
#ptf-drawer.drawer--sheet .log-drawer-loading {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1.5rem;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  font-family: var(--font-sans);
}

#ptf-drawer.drawer--sheet .log-drawer-spinner {
  width: 16px;
  height: 16px;
  border: 1.5px solid var(--color-border);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  flex-shrink: 0;
}

/* ==========================================================================
   8. RESPONSIVE — narrow viewport fallback
   Sheet degrades gracefully on small screens
   ========================================================================== */

@media (max-width: 768px) {
  #ptf-drawer.drawer--sheet {
    height: 82vh;
    max-height: 92vh;
  }

  /* Single column on mobile */
  #ptf-drawer.drawer--sheet .instrument-drawer__hero,
  #ptf-drawer.drawer--sheet .instrument-info-grid {
    grid-template-columns: 1fr !important;
  }

  #ptf-drawer.drawer--sheet .instrument-drawer__box {
    border-right: none !important;
    border-bottom: 1px solid var(--color-border-light);
    padding: 0.85rem 1rem;
  }

  #ptf-drawer.drawer--sheet .instrument-drawer__box:last-child {
    border-bottom: none;
  }

  #ptf-drawer.drawer--sheet .instrument-metrics {
    grid-template-columns: repeat(2, 1fr);
  }

  #ptf-drawer.drawer--sheet .drawer-header,
  #ptf-drawer.drawer--sheet .instrument-drawer-header,
  #ptf-drawer.drawer--sheet .log-drawer-header,
  #ptf-drawer.drawer--sheet .ptf-drawer-header {
    padding: 0.6rem 1rem;
  }

  #ptf-drawer.drawer--sheet .log-drawer-search-wrap {
    padding: 0.5rem 1rem;
  }

  #ptf-drawer.drawer--sheet .log-drawer-body {
    padding: 0.6rem 1rem;
  }
}

/* ==========================================================================
   9. BADGE HELPERS (used inside instrument drawer)
   ========================================================================== */

#ptf-drawer.drawer--sheet .badge-ok {
  display: inline-flex;
  align-items: center;
  padding: 0.12rem 0.55rem;
  border-radius: 999px;
  font-family: var(--font-sans);
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: rgba(74, 222, 128, 0.10);
  border: 1px solid rgba(74, 222, 128, 0.22);
  color: var(--color-success);
}

#ptf-drawer.drawer--sheet .badge {
  display: inline-flex;
  align-items: center;
  padding: 0.12rem 0.55rem;
  border-radius: 999px;
  font-family: var(--font-sans);
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
}

/* ==========================================================================
   10. MINI — Positive / Negative value coloring
   ========================================================================== */

#ptf-drawer.drawer--sheet .is-pos   { color: var(--color-success); }
#ptf-drawer.drawer--sheet .is-neg   { color: var(--color-danger); }
#ptf-drawer.drawer--sheet .is-zero  { color: var(--color-text-faint); }
#ptf-drawer.drawer--sheet .muted    { color: var(--color-text-muted); }