/* ------------- design tokens (warm editorial) ------------- */
:root {
  --text-primary:    #0a0a0a;
  --text-secondary:  #6b6560;
  --text-tertiary:   #b5aea6;
  --text-quaternary: rgba(181,174,166,0.65);
  --bg-canvas:       #f5f0e8;
  --bg-panel:        #ebe5d9;
  --bg-elevated:     #ffffff;
  --bg-hover:        rgba(0,0,0,0.04);
  --border:          rgba(0,0,0,0.10);
  --border-subtle:   rgba(0,0,0,0.06);
  --accent:          #8b2500;
  --accent-hover:    #a83000;
  --danger:          #9b2c2c;
  --warning:         #92400e;
  --success:         #2d6a30;
  --focus-ring:      0 0 0 3px rgba(139,37,0,0.18);
  --shadow-card:     0 1px 2px rgba(0,0,0,0.04);
  --shadow-overlay:  0 8px 24px rgba(0,0,0,0.10);
  --radius-sm:       2px;
  --radius-md:       3px;
  --radius-lg:       4px;
  --radius-pill:     0; /* editorial = squared; legacy var name kept */
  --serif:           'Instrument Serif', Georgia, serif;
  --sans:            'Instrument Sans', -apple-system, BlinkMacSystemFont, "Helvetica Neue", system-ui, sans-serif;
  --mono:            'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
}

/* ------------- reset + base ------------- */
* { box-sizing: border-box; margin: 0; padding: 0; }
[hidden] { display: none !important; }
html, body { height: 100%; }
body {
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.5;
  color: var(--text-primary);
  background: var(--bg-canvas);
  -webkit-font-smoothing: antialiased;
}
input, textarea, button { font: inherit; color: inherit; }
button { cursor: pointer; background: none; border: none; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ------------- layout shell ------------- */
#app {
  display: grid;
  grid-template-columns: 260px 1fr;
  height: 100vh;
}

/* ------------- sidebar ------------- */
#sidebar {
  background: var(--bg-panel);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.sidebar-header {
  padding: 18px 16px 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-subtle);
}
.sidebar-header h1 {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 400;
  letter-spacing: -0.022em;
  line-height: 1;
}

.new-btn {
  padding: 6px 12px;
  background: var(--text-primary);
  color: var(--bg-canvas);
  border: 1px solid var(--text-primary);
  font-family: var(--sans);
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  transition: opacity 100ms;
}
.new-btn:hover { opacity: 0.85; }

.dossier-list {
  flex: 1;
  overflow-y: auto;
  padding: 8px 0;
}
.dossier-list:has(.list-empty) {
  display: flex;
  align-items: center;
  justify-content: center;
}

.dossier-row {
  padding: 10px 14px;
  display: flex;
  gap: 10px;
  align-items: center;
  cursor: pointer;
  border-left: 3px solid transparent;
}
.dossier-row:hover { background: var(--bg-hover); }
.dossier-row.active {
  background: var(--bg-elevated);
  border-left-color: var(--accent);
}

.logo-avatar {
  width: 28px; height: 28px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 12px;
  color: white;
  flex-shrink: 0;
  text-transform: uppercase;
}
.logo-avatar.lg { width: 36px; height: 36px; font-size: 15px; border-radius: 8px; }
.dossier-row .body {
  flex: 1;
  min-width: 0;
}
.dossier-row .title {
  font-weight: 500;
  font-size: 13px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.dossier-row .meta {
  color: var(--text-tertiary);
  font-size: 11px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.row-spinner {
  width: 12px;
  height: 12px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  flex-shrink: 0;
  margin: 0 6px;
}
@keyframes spin { to { transform: rotate(360deg); } }

.row-delete {
  color: transparent;
  padding: 0 6px;
  font-size: 18px;
  line-height: 1;
  flex-shrink: 0;
  transition: color 100ms;
}
.dossier-row:hover .row-delete { color: var(--text-tertiary); }
.row-delete:hover { color: var(--danger) !important; }

.delete-confirm {
  position: absolute;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 6px 10px;
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: var(--shadow-overlay);
  z-index: 100;
  font-size: 11px;
}
.delete-confirm-text { color: var(--text-secondary); }
.delete-confirm-yes,
.delete-confirm-no {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border);
  background: white;
}
.delete-confirm-yes { color: var(--danger); border-color: var(--danger); }
.delete-confirm-yes:hover { background: var(--danger); color: var(--bg-canvas); }
.delete-confirm-no:hover { background: var(--bg-panel); }

.user-chip {
  padding: 10px 14px;
  border-top: 1px solid var(--border-subtle);
  font-size: 11px;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.user-chip .user-email {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  min-width: 0;
}
.logout-btn {
  font-size: 11px;
  color: var(--text-secondary);
  padding: 3px 9px;
  flex-shrink: 0;
  transition: color 100ms, background 100ms;
}
.logout-btn:hover {
  color: var(--text-primary);
  background: var(--bg-hover);
}

/* ------------- main ------------- */
#main {
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.empty-state {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 13px;
}

.dossier-view {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
}

/* ------------- compute overlay ------------- */
.compute-overlay {
  position: absolute;
  inset: 78px 0 0 0;  /* below the header */
  background: rgba(251, 251, 253, 0.78);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
}
.overlay-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 32px 40px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-overlay);
  min-width: 320px;
}
.overlay-spinner {
  width: 28px;
  height: 28px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-bottom: 4px;
}
.overlay-title {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.overlay-elapsed {
  font-size: 13px;
  color: var(--text-primary);
  font-variant-numeric: tabular-nums;
}
.overlay-typical {
  font-size: 11px;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.overlay-progress {
  width: 240px;
  height: 4px;
  background: var(--border-subtle);
  border-radius: 2px;
  overflow: hidden;
  margin-top: 4px;
}
.overlay-progress > div {
  height: 100%;
  background: var(--accent);
  transition: width 200ms ease;
  width: 0%;
}

.dossier-header {
  padding: 14px 24px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--bg-elevated);
  flex-shrink: 0;
}
.dossier-header .name-block { flex: 1; min-width: 0; }
.dossier-header .name-row {
  display: flex;
  align-items: center;
  gap: 8px;
}
.dossier-header .name {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.022em;
  color: var(--text-primary);
}
.share-icon-btn {
  color: var(--text-quaternary);
  padding: 4px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  transition: color 100ms, background 100ms;
}
.share-icon-btn:hover { color: var(--text-primary); background: var(--bg-panel); }
.dossier-header .one-liner {
  font-size: 12px;
  color: var(--text-secondary);
}
.dossier-header .url {
  font-size: 11px;
  color: var(--text-tertiary);
  font-family: ui-monospace, SF Mono, Menlo, monospace;
}

.header-btn {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 6px 12px;
  color: var(--text-secondary);
  background: transparent;
  border: 1px solid var(--border);
  transition: color 100ms, border-color 100ms, background 100ms;
}
.header-btn:hover {
  color: var(--text-primary);
  background: var(--bg-panel);
  border-color: var(--text-secondary);
}
.header-btn.delete-btn { color: var(--text-tertiary); border-color: var(--border-subtle); }
.header-btn.delete-btn:hover { color: var(--danger); border-color: var(--danger); background: transparent; }

.header-btn.primary {
  background: var(--text-primary);
  color: var(--bg-canvas);
  border-color: var(--text-primary);
}
.header-btn.primary:hover { background: var(--text-primary); color: var(--bg-canvas); opacity: 0.85; }

.action-desc {
  font-size: 12px;
  font-weight: 500;
  color: var(--warning);
  margin-right: 6px;
  white-space: nowrap;
}

.shared-by {
  font-size: 11px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 4px 10px;
  background: var(--bg-panel);
  border-radius: var(--radius-pill);
}


/* ------------- tabs ------------- */
.tab-bar {
  display: flex;
  gap: 2px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-elevated);
  padding: 0 16px;
  flex-shrink: 0;
}
.tab-btn {
  padding: 12px 18px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  border-bottom: 2px solid transparent;
  background: none;
  margin-bottom: -1px;
}
.tab-btn:hover { color: var(--text-primary); }
.tab-btn.active {
  color: var(--text-primary);
  border-bottom-color: var(--accent);
}

.tab-pane {
  flex: 1;
  overflow-y: auto;
  padding: 24px 32px;
  background: var(--bg-elevated);
}
#tab-notes { padding: 24px 32px; }
#tab-notes textarea {
  height: calc(100% - 40px);
  line-height: 1.6;
}

/* ------------- inputs pane ------------- */
.field-label {
  display: block;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 14px;
  margin-bottom: 6px;
}
.field-label:first-of-type { margin-top: 0; }

textarea, input[type="url"], input[type="text"] {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  font-size: 14px;
  line-height: 1.5;
  background: var(--bg-elevated);
  resize: none;
  font-family: inherit;
  color: var(--text-primary);
  transition: border-color 120ms, box-shadow 120ms;
}
textarea:focus, input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: var(--focus-ring);
}

.field-status {
  display: block;
  font-size: 11px;
  color: var(--text-tertiary);
  margin-top: 4px;
  height: 14px;
}

.attachments {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 8px;
}
.attachment {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 8px;
  background: var(--bg-panel);
  border-radius: var(--radius-sm);
  font-size: 12px;
}
.attachment .name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.attachment .remove { color: var(--text-tertiary); padding: 0 4px; }
.attachment .remove:hover { color: var(--danger); }

.upload-btn {
  display: inline-block;
  padding: 6px 10px;
  background: var(--bg-panel);
  border: 1px dashed var(--border);
  border-radius: var(--radius-sm);
  font-size: 12px;
  color: var(--text-secondary);
  cursor: pointer;
  text-align: center;
}
.upload-btn:hover { background: var(--bg-hover); }

.qa-list { display: flex; flex-direction: column; gap: 10px; }

.qa-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 10px 12px;
  background: var(--bg-elevated);
}
.qa-item .question { font-size: 13px; margin-bottom: 6px; }
.qa-item .answer-input {
  width: 100%;
  font-size: 12px;
  padding: 6px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}
.qa-item.answered { background: rgba(45,106,48,0.06); border-color: rgba(45,106,48,0.25); }
.qa-item .answer-text {
  font-size: 12px;
  color: var(--success);
  margin-top: 4px;
  font-style: italic;
}

/* ------------- writeup pane ------------- */
.writeup-body {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-primary);
  white-space: pre-wrap;
  font-family: -apple-system, "SF Pro Text", "Segoe UI", system-ui, sans-serif;
  flex: 1;
}
.writeup-body.empty { color: var(--text-tertiary); }

.pane-empty {
  color: var(--text-tertiary);
  font-size: 12px;
  font-style: italic;
}

/* ------------- scenarios pane ------------- */
.scenarios-body { display: flex; flex-direction: column; gap: 22px; }
.scenarios-section { display: flex; flex-direction: column; gap: 6px; }
.scenarios-section-h {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-secondary);
  margin-bottom: 2px;
}
.scenario {
  display: grid;
  grid-template-columns: 60px 220px 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg-elevated);
  font-size: 12px;
}
.scenario:hover { background: var(--bg-panel); }
.scenario .prob {
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  text-align: right;
}
.scenario .bar {
  height: 6px;
  background: var(--border-subtle);
  border-radius: 3px;
  overflow: hidden;
}
.scenario .bar > div {
  height: 100%;
  background: var(--text-primary);
}
.scenario .name { font-weight: 500; }
.scenario .meta {
  color: var(--text-secondary);
  font-size: 11px;
  white-space: nowrap;
}
.scenario .rationale {
  grid-column: 1 / -1;
  margin-top: 6px;
  padding-top: 6px;
  border-top: 1px solid var(--border-subtle);
  color: var(--text-secondary);
}

.exit-tag {
  display: inline-block;
  padding: 1px 6px;
  border-radius: 2px;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 600;
}
/* upside-style outcomes */
.exit-tag.acquisition,
.exit-tag.ipo,
.exit-tag.spinoff,
.exit-tag.price-upside { background: rgba(45,106,48,0.10); color: var(--success); }
/* neutral / no-event outcomes */
.exit-tag.zombie,
.exit-tag.continue,
.exit-tag.status_quo,
.exit-tag.go_private,
.exit-tag.price-base   { background: rgba(0,0,0,0.06);     color: var(--text-secondary); }
/* downside outcomes */
.exit-tag.shutdown,
.exit-tag.bankruptcy,
.exit-tag.price-downside { background: rgba(155,44,44,0.10); color: var(--danger); }
/* friction outcomes (forced changes, raises at compressed valuations) */
.exit-tag.down_round,
.exit-tag.major_pivot  { background: rgba(146,64,14,0.10);  color: var(--warning); }
/* next-round forecast tag (rust accent) */
.exit-tag.round        { background: rgba(139,37,0,0.08);   color: var(--accent); }

/* ------------- questions pane ------------- */
.questions-body { display: flex; flex-direction: column; gap: 6px; }
.question-item {
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg-elevated);
  font-size: 13px;
}
.question-item .q { margin-bottom: 4px; font-weight: 500; }
.question-item .shift {
  font-size: 11px;
  color: var(--text-tertiary);
  margin-bottom: 6px;
}
.question-item .answer-input {
  margin-top: 6px;
}
.question-item.answered { background: rgba(45,106,48,0.06); border-color: rgba(45,106,48,0.25); }
.question-item.answered .answer-text {
  font-size: 12px;
  color: var(--success);
  font-style: italic;
}

/* ------------- modal ------------- */
.modal {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.4);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex; align-items: center; justify-content: center;
  z-index: 100;
}
.modal-card {
  background: var(--bg-elevated);
  border-radius: var(--radius-lg);
  padding: 24px;
  width: 480px;
  max-width: 90vw;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-overlay);
}
.modal-card h2 {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.022em;
  margin-bottom: 16px;
}
.modal-card label {
  display: block;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 12px;
  margin-bottom: 6px;
}
.modal-card .required { color: var(--danger); }
.modal-card input[type="file"] {
  font-size: 12px;
  color: var(--text-secondary);
}
.modal-card input[type="file"]::file-selector-button,
.modal-card input[type="file"]::-webkit-file-upload-button {
  font: inherit;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  border: none;
  background: var(--bg-panel);
  color: var(--text-primary);
  cursor: pointer;
  margin-right: 10px;
  transition: background 100ms;
}
.modal-card input[type="file"]::file-selector-button:hover,
.modal-card input[type="file"]::-webkit-file-upload-button:hover {
  background: var(--bg-hover);
}

.list-empty {
  padding: 16px;
  font-size: 12px;
  color: var(--text-secondary);
  text-align: center;
}
.modal-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  margin-top: 20px;
}
.modal-actions button {
  padding: 8px 14px;
  font-family: var(--sans);
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-primary);
  transition: background 100ms, opacity 100ms;
}
.modal-actions button[type="button"] { color: var(--text-secondary); }
.modal-actions button[type="button"]:hover { background: var(--bg-panel); color: var(--text-primary); }
.modal-actions button.primary {
  background: var(--text-primary);
  color: var(--bg-canvas);
  border-color: var(--text-primary);
}
.modal-actions button.primary:hover { background: var(--text-primary); color: var(--bg-canvas); opacity: 0.85; }

/* ------------- toast ------------- */
.toast {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: var(--text-primary);
  color: white;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  font-size: 12px;
  box-shadow: var(--shadow-overlay);
  z-index: 60;
  max-width: 480px;
  word-break: break-all;
}

/* ------------- shared mode adjustments ------------- */
.shared-mode #app { grid-template-columns: 1fr; }
.grid.no-inputs {
  grid-template-columns: 1fr;
  grid-template-areas:
    "writeup"
    "scenarios"
    "questions";
}