/* ---- Reset & Base ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:         #0f1117;
  --surface:    #1a1d27;
  --surface2:   #222636;
  --border:     #2e3347;
  --text:       #e2e8f0;
  --text-muted: #8892a4;
  --accent:     #3b82f6;
  --accent-hover: #2563eb;
  --positive:   #22c55e;
  --negative:   #ef4444;
  --warning:    #f59e0b;
  --badge-open:    #166534;
  --badge-closed:  #374151;
  --badge-expired: #78350f;
  --sidebar-w: 200px;
  --header-h:  52px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 14px;
  background: var(--bg);
  color: var(--text);
  display: flex;
  height: 100vh;
  overflow: hidden;
}

/* ---- Sidebar ---- */
#sidebar {
  width: var(--sidebar-w);
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  padding: 0 0 16px;
}

#logo {
  border-bottom: 1px solid var(--border);
  margin-bottom: 8px;
  overflow: hidden;
}
#logo img {
  display: block;
  width: 100%;
  height: auto;
}

#sidebar ul { list-style: none; padding: 0 8px; }
#sidebar ul li { margin-bottom: 2px; }

.nav-section {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text);
  padding: 18px 12px 5px;
}

.nav-section-gap { height: 6px; }

.nav-sub { padding-left: 20px; }

.nav-link {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 9px 12px;
  border-radius: 6px;
  text-decoration: none;
  color: var(--text-muted);
  font-size: 14px;
  transition: background 0.15s, color 0.15s;
}
.nav-link::before {
  content: '';
  display: inline-block;
  width: 12px;
  height: 9px;
  flex-shrink: 0;
  background: url('../images/nav-arrow.3.png') no-repeat center / contain;
  opacity: 0;
  transition: opacity 0.15s;
}
.nav-link.active::before { opacity: 1; }
.nav-link:hover  { background: var(--surface2); color: var(--text); }
.nav-link.active { background: var(--surface2); color: var(--text); font-weight: 600; }

#sidebar-footer {
  margin-top: auto;
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

/* ---- Main content ---- */
#content {
  flex: 1;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  position: relative;
}

/* ---- Topbar ---- */
#topbar {
  height: var(--header-h);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 16px;
  gap: 10px;
  flex-shrink: 0;
}

/* ---- Views ---- */
.view {
  display: none;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
  padding: 16px 20px;
}
.view.active-view { display: flex; }

.view-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 12px;
  flex-shrink: 0;
}
.view-header h2 { font-size: 20px; font-weight: 700; }

.toolbar { display: flex; gap: 8px; margin-left: auto; }

/* ---- Buttons ---- */
.btn {
  padding: 7px 14px;
  border: none;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s, opacity 0.15s;
}
.btn:active { opacity: 0.85; }
.btn-primary   { background: var(--accent);  color: #fff; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-secondary { background: var(--surface2); color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { border-color: var(--text-muted); }
.btn-danger    { background: #7f1d1d; color: #fca5a5; }
.btn-danger:hover { background: #991b1b; }
.btn-sm        { padding: 5px 10px; font-size: 12px; }
.btn-icon      { background: none; border: none; color: var(--text-muted); font-size: 18px; cursor: pointer; padding: 6px 10px; border-radius: 6px; }
.btn-icon:hover { background: var(--surface2); color: var(--text); }
.btn-close     { background: none; border: none; color: var(--text-muted); font-size: 20px; cursor: pointer; line-height: 1; padding: 4px; }
.btn-close:hover { color: var(--text); }

/* ---- Filter Bar ---- */
.filter-bar {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 8px;
  flex-shrink: 0;
}
.search-input {
  padding: 7px 12px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 13px;
  width: 280px;
}
.search-input:focus { outline: none; border-color: var(--accent); }
.toggle-label {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text-muted);
  font-size: 13px;
  cursor: pointer;
  user-select: none;
}

/* ---- Status Bar ---- */
.status-bar {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 8px;
  flex-shrink: 0;
  min-height: 16px;
}
.status-inline { font-size: 12px; margin-left: 10px; display: inline; }

/* ---- Summary Bar ---- */
.summary-bar {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 8px;
  flex-shrink: 0;
}

/* ---- Tabulator overrides ---- */
.tabulator {
  background: var(--surface) !important;
  border: 1px solid var(--border) !important;
  border-radius: 8px !important;
  font-size: 13px !important;
}
.tabulator .tabulator-header {
  background: var(--surface2) !important;
  border-bottom: 1px solid var(--border) !important;
}
.tabulator .tabulator-col-title { color: var(--text-muted) !important; font-weight: 600 !important; font-size: 12px !important; text-transform: uppercase; letter-spacing: 0.04em; }
.tabulator .tabulator-row { border-bottom: 1px solid var(--border) !important; }
.tabulator .tabulator-row:hover { background: var(--surface2) !important; }
.tabulator .tabulator-cell { color: var(--text) !important; padding: 7px 10px !important; }
.tabulator .tabulator-group { background: var(--surface2) !important; color: var(--text) !important; font-weight: 600 !important; }
.group-count { font-weight: 400; color: var(--text-muted); font-size: 12px; }

/* ---- Badges ---- */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.badge-open    { background: var(--badge-open);    color: #86efac; }
.badge-closed  { background: var(--badge-closed);  color: #9ca3af; }
.badge-expired { background: var(--badge-expired); color: #fcd34d; }

/* ---- P&L colors ---- */
.positive { color: var(--positive); }
.negative { color: var(--negative); }

/* ---- Modal ---- */
#modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 1000;
  align-items: center;
  justify-content: center;
}
.modal-content {
  background: #1e2130;
  border: 1px solid #4a5170;
  border-radius: 10px;
  box-shadow: 0 8px 40px rgba(0,0,0,0.7);
  width: 480px;
  max-width: 95vw;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.modal-medium { width: 520px; }
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.modal-header h3 { font-size: 16px; font-weight: 700; }
.modal-body { padding: 20px; overflow-y: auto; flex: 1; }
.modal-footer {
  padding: 14px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  flex-shrink: 0;
}

/* ---- Community notice ---- */
.community-notice {
  background: #1a2640;
  border: 1px solid #2e4a6e;
  border-radius: 6px;
  padding: 10px 14px;
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 14px;
}
.community-notice strong { color: var(--accent); }

/* ---- Upload ---- */
.upload-section { margin-bottom: 20px; }
.upload-label { display: block; font-weight: 600; margin-bottom: 4px; }
.upload-hint { font-size: 12px; color: var(--text-muted); margin-bottom: 8px; }
.file-input { width: 100%; background: var(--surface2); border: 1px solid var(--border); border-radius: 6px; padding: 8px; color: var(--text); font-size: 13px; }
.upload-status { margin-top: 10px; font-size: 13px; color: var(--text-muted); min-height: 20px; }

/* ---- Forms ---- */
.form-grid { display: flex; flex-direction: column; gap: 12px; }
.form-row { display: grid; grid-template-columns: 140px 1fr auto; align-items: center; gap: 10px; }
.form-row label { font-size: 13px; color: var(--text-muted); }
.form-row input, .form-row select {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  padding: 7px 10px;
  font-size: 13px;
  width: 100%;
}
.form-row input:focus, .form-row select:focus { outline: none; border-color: var(--accent); }
.form-error { color: var(--negative); font-size: 12px; min-height: 18px; }

/* ---- Settings ---- */
.settings-section { max-width: 640px; margin-bottom: 32px; }
.settings-section h3 { font-size: 15px; font-weight: 700; margin-bottom: 10px; padding-bottom: 8px; border-bottom: 1px solid var(--border); }
.settings-desc { font-size: 13px; color: var(--text-muted); margin-bottom: 14px; line-height: 1.5; }
.setting-input { background: var(--surface2); border: 1px solid var(--border); border-radius: 6px; color: var(--text); padding: 8px 12px; font-size: 13px; width: 360px; }
.settings-actions { display: flex; flex-direction: column; gap: 16px; }
.settings-action-row { display: flex; align-items: center; justify-content: space-between; gap: 20px; }

/* ---- Chat Panel ---- */
#chat-panel {
  position: fixed;
  right: -380px;
  top: var(--header-h);
  bottom: 0;
  width: 380px;
  background: var(--surface);
  border-left: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  z-index: 900;
  transition: right 0.25s ease;
}
#chat-panel.open { right: 0; }

#chat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  font-weight: 700;
  flex-shrink: 0;
}
#chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.chat-message { max-width: 90%; }
.chat-message.user { align-self: flex-end; }
.chat-message.assistant { align-self: flex-start; }
.chat-text {
  padding: 9px 13px;
  border-radius: 10px;
  font-size: 13px;
  line-height: 1.5;
  word-wrap: break-word;
}
.chat-message.user .chat-text     { background: var(--accent); color: #fff; }
.chat-message.assistant .chat-text { background: var(--surface2); color: var(--text); }

#chat-footer {
  padding: 12px 16px;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}
#chat-input {
  flex: 1;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  padding: 8px 12px;
  font-size: 13px;
  resize: none;
}
#chat-input:focus { outline: none; border-color: var(--accent); }

/* ---- Toast ---- */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 18px;
  font-size: 13px;
  z-index: 2000;
  animation: fadeInOut 3s ease forwards;
}
@keyframes fadeInOut {
  0%   { opacity: 0; transform: translateX(-50%) translateY(10px); }
  10%  { opacity: 1; transform: translateX(-50%) translateY(0); }
  80%  { opacity: 1; }
  100% { opacity: 0; }
}

/* ---- Placeholder ---- */
.placeholder-message {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex: 1;
  gap: 16px;
  color: var(--text-muted);
  font-size: 15px;
  text-align: center;
}

/* ---- Scrollbars ---- */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ---- Tabulator inline editor ---- */
.tabulator .tabulator-cell input,
.tabulator .tabulator-cell textarea,
.tabulator input.tabulator-editor {
  background: var(--surface2) !important;
  color: var(--text) !important;
  border: 1px solid var(--accent) !important;
  border-radius: 4px !important;
  padding: 2px 6px !important;
  font-size: 13px !important;
}

/* ---- Spread Finder modal ---- */
.modal-sf    { width: 560px; }
.modal-chart {
  width: 940px;
  max-width: 96vw;
  height: 96vh;
  max-height: 96vh;
}
.modal-chart .modal-body {
  height: calc(96vh - 62px) !important;
  padding: 16px !important;
}

.sf-section { margin-bottom: 20px; }

.sf-label {
  display: block;
  font-size: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 6px;
}

.sf-config-header { margin-bottom: 12px; font-size: 14px; font-weight: 700; color: var(--text); text-transform: none; letter-spacing: 0; }

.sf-select {
  width: 100%;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  padding: 8px 10px;
  font-size: 14px;
}

.sf-exp-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}
.sf-select-all { font-size: 13px; color: var(--accent); }
.sf-exp-count  { font-size: 12px; color: var(--text-muted); }

.sf-exp-list {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 4px;
  max-height: 180px;
  overflow-y: auto;
}

.sf-exp-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 12px;
  cursor: pointer;
  font-size: 14px;
  border-radius: 4px;
}
.sf-exp-item:hover { background: var(--surface); }
.sf-exp-item input { accent-color: var(--accent); width: 16px; height: 16px; }

.sf-config-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px 24px;
}

.sf-config-pair label {
  display: block;
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.sf-range-row {
  display: flex;
  align-items: center;
  gap: 8px;
}
.sf-to { font-size: 12px; color: var(--text-muted); }

.sf-input {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  padding: 7px 10px;
  font-size: 13px;
  width: 100%;
}
.sf-range-row .sf-input { width: 80px; }
.sf-input:focus { outline: none; border-color: var(--accent); }

/* ⓘ tooltip icon */
.sf-tip {
  display: inline-block;
  font-size: 12px;
  color: var(--text-muted);
  cursor: help;
  position: relative;
  margin-left: 2px;
  vertical-align: middle;
}
.sf-tip::after {
  content: attr(data-tip);
  position: absolute;
  bottom: calc(100% + 6px);
  left: 0;
  transform: none;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 10px;
  font-size: 12px;
  color: var(--text);
  white-space: normal;
  width: 220px;
  line-height: 1.5;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.15s;
  z-index: 2000;
  box-shadow: 0 4px 12px rgba(0,0,0,0.4);
}
.sf-tip:hover::after { opacity: 1; }
.sf-tip-right::after { left: auto; right: 0; }

/* ---- Option Prices page ---- */
.op-list { overflow-y: auto; flex: 1; }

.op-symbol-block {
  margin-bottom: 24px;
  max-width: 700px;
}

.op-symbol-header {
  font-size: 15px;
  font-weight: 700;
  color: var(--accent);
  padding: 6px 0 8px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 4px;
}

.op-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 7px 0;
  border-bottom: 1px solid var(--border);
}

.op-exp {
  width: 72px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  flex-shrink: 0;
}

.op-dates {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  flex: 1;
}

.date-chip {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 2px 8px;
  font-size: 12px;
  color: var(--text-muted);
  cursor: default;
}

.op-delete {
  margin-left: auto;
  flex-shrink: 0;
  opacity: 0.4;
}
.op-row:hover .op-delete { opacity: 1; }

.op-community-badge {
  margin-left: auto;
  flex-shrink: 0;
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  opacity: 0.6;
}

/* ---- Tabulator column calc footer ---- */
.tabulator .tabulator-calcs-bottom {
  background: var(--surface2) !important;
  border-top: 2px solid var(--border) !important;
}
.tabulator .tabulator-calcs-bottom .tabulator-cell {
  color: var(--text) !important;
  font-weight: 600 !important;
}

/* ---- Portfolio totals bar ---- */
.portfolio-totals { flex-shrink: 0; margin-top: 8px; }

.totals-grid {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.total-card {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 16px;
  min-width: 140px;
}

.total-card-accent {
  border-color: var(--accent);
}

.total-label {
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}

.total-value {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
}

.total-value.positive { color: var(--positive); }
.total-value.negative { color: var(--negative); }

.totals-note {
  font-size: 12px;
  color: var(--warning);
  margin-bottom: 8px;
}

/* ---- No-price indicator ---- */
.no-price { color: var(--text-muted); cursor: help; }

/* ---- Code ---- */
code { background: var(--surface2); padding: 2px 6px; border-radius: 4px; font-family: monospace; font-size: 12px; }

/* ---- Links ---- */
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }