html, body {
  height: 100%;
}

.app-shell {
  height: 100vh;
  overflow: hidden;
}

/* ---------- Top nav ---------- */

.topnav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 0 20px;
  border-bottom: 1px solid var(--border);
  background: rgba(17, 19, 24, 0.85);
  backdrop-filter: blur(10px);
  z-index: 100;
}

.topnav-logo {
  display: flex;
  align-items: center;
  gap: 9px;
  flex-shrink: 0;
  width: 224px;
}

.topnav-logo .mark {
  width: 26px;
  height: 26px;
  border-radius: 7px;
  background: linear-gradient(140deg, var(--accent), var(--purple));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 13px;
  color: #04130d;
}

.topnav-logo .name {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 16px;
}

.topnav-logo .name span {
  color: var(--accent);
}

.topnav-search {
  flex: 1;
  max-width: 440px;
  position: relative;
}

.topnav-search input {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: var(--font-ui);
  font-size: 13.5px;
  padding: 9px 14px 9px 36px;
  border-radius: var(--radius-md);
  outline: none;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.topnav-search input::placeholder {
  color: var(--text-faint);
}

.topnav-search input:focus {
  border-color: var(--accent);
  background: var(--surface-raised);
}

.topnav-search input.invalid {
  border-color: var(--red);
}

.topnav-search .icon {
  position: absolute;
  left: 13px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-faint);
  pointer-events: none;
}

.topnav-status {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-shrink: 0;
}

.live-indicator {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.topnav-clock {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-dim);
  min-width: 92px;
  text-align: right;
}

/* ---------- Sidebar ---------- */

.sidebar {
  position: fixed;
  top: 56px;
  left: 0;
  bottom: 0;
  width: 185px;
  border-right: 1px solid var(--border);
  background: var(--bg);
  display: flex;
  flex-direction: column;
  z-index: 90;
  transition: width 0.22s ease;
}

html.sidebar-collapsed .sidebar {
  width: 50px;
}

.sidebar-header {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding: 10px 10px 8px;
}

html.sidebar-collapsed .sidebar-header {
  justify-content: center;
  padding: 10px 0 8px;
}

.sidebar-toggle-btn {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-dim);
  cursor: pointer;
  transition: border-color 0.15s ease, color 0.15s ease;
}

.sidebar-toggle-btn:hover {
  border-color: var(--text-faint);
  color: var(--text);
}

.sidebar-header .sidebar-toggle-btn svg {
  transition: transform 0.22s ease;
}

html.sidebar-collapsed .sidebar-header .sidebar-toggle-btn svg {
  transform: rotate(180deg);
}

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: 4px 10px 14px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

html.sidebar-collapsed .sidebar-nav {
  padding: 4px 8px 14px;
  align-items: center;
}

.sidebar-item {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 9px 12px;
  border-radius: var(--radius-md);
  background: none;
  border: none;
  color: var(--text-dim);
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  text-align: left;
  width: 100%;
  min-width: 0;
  transition: background 0.15s ease, color 0.15s ease;
}

.sidebar-item svg {
  flex-shrink: 0;
  opacity: 0.85;
}

.sidebar-item span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

html.sidebar-collapsed .sidebar-item,
html.sidebar-collapsed .sidebar-folder-toggle {
  justify-content: center;
  padding: 9px;
  gap: 0;
  width: 32px;
}

html.sidebar-collapsed .sidebar-item span,
html.sidebar-collapsed .sidebar-folder-toggle span {
  display: none;
}

html.sidebar-collapsed .sidebar-folder-items {
  display: none;
}

.sidebar-item:hover {
  background: var(--surface);
  color: var(--text);
}

.sidebar-item.active {
  background: var(--accent-dim);
  color: var(--accent);
}

.sidebar-item.active svg {
  opacity: 1;
}

/* ---------- Sidebar folders ---------- */

.sidebar-folder {
  display: flex;
  flex-direction: column;
}

.sidebar-folder-toggle {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 9px 12px;
  border-radius: var(--radius-md);
  background: none;
  border: none;
  color: var(--text-dim);
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  text-align: left;
  width: 100%;
  transition: background 0.15s ease, color 0.15s ease;
}

.sidebar-folder-toggle svg:first-child {
  flex-shrink: 0;
  opacity: 0.85;
}

.sidebar-folder-toggle span:nth-of-type(1) {
  flex: 1;
}

.sidebar-folder-toggle:hover {
  background: var(--surface);
  color: var(--text);
}

.sidebar-folder-toggle .chevron {
  display: flex;
  flex-shrink: 0;
  transition: transform 0.2s ease;
  opacity: 0.6;
}

.sidebar-folder.open .sidebar-folder-toggle .chevron {
  transform: rotate(90deg);
}

.sidebar-folder-items {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.2s ease;
  overflow: hidden;
}

.sidebar-folder.open .sidebar-folder-items {
  grid-template-rows: 1fr;
}

.sidebar-folder-items-inner {
  min-height: 0;
  display: flex;
  flex-direction: column;
  gap: 1px;
  padding-left: 17px;
  margin-top: 2px;
}

.sidebar-subitem {
  display: flex;
  align-items: center;
  padding: 7px 12px 7px 16px;
  border-radius: var(--radius-md);
  background: none;
  border: none;
  border-left: 1px solid var(--border);
  color: var(--text-faint);
  font-family: var(--font-ui);
  font-size: 12.5px;
  font-weight: 500;
  cursor: pointer;
  text-align: left;
  white-space: nowrap;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.sidebar-subitem:hover {
  background: var(--surface);
  color: var(--text);
}

.sidebar-subitem.active {
  background: var(--accent-dim);
  color: var(--accent);
  border-left-color: var(--accent);
  font-weight: 600;
}

/* ---------- Main content ---------- */

.main-content {
  position: absolute;
  top: 56px;
  left: 185px;
  right: 0;
  bottom: 0;
  overflow-y: auto;
  transition: left 0.22s ease;
}

html.sidebar-collapsed .main-content {
  left: 50px;
}

.view {
  display: none;
}

.view.active {
  display: block;
  animation: view-fade-in 0.28s ease both;
}

@keyframes view-fade-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---------- Placeholder views ---------- */

.view.placeholder-view.active {
  height: calc(100vh - 56px);
  display: flex;
  align-items: center;
  justify-content: center;
}

.placeholder-card {
  text-align: center;
  max-width: 360px;
}

.placeholder-card .icon-circle {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 18px;
  color: var(--text-faint);
}

.placeholder-card h2 {
  font-size: 18px;
  margin-bottom: 8px;
}

.placeholder-card p {
  font-size: 13px;
  color: var(--text-dim);
  margin: 0;
}

.placeholder-card .pill {
  margin-top: 16px;
}

/* ---------- Dashboard overview grid ---------- */

.overview-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.1fr;
  gap: 16px;
  padding: 20px 24px 40px;
  align-items: start;
}

.overview-col {
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-width: 0;
}

.mini-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}

.mini-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px 0;
  margin-bottom: 12px;
}

.mini-panel-header h3 {
  font-size: 13px;
}

.mini-panel-header-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.mini-panel-body {
  padding: 0 16px 16px;
}

/* mini gauge */

.mini-gauge-panel .mini-panel-body {
  display: flex;
  align-items: center;
  gap: 16px;
}

.mini-gauge-wrap {
  flex-shrink: 0;
  width: 120px;
  text-align: center;
}

.mini-gauge-wrap canvas {
  width: 100%;
  height: auto;
}

.mini-gauge-score {
  margin-top: -24px;
}

.mini-gauge-score .value {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}

.mini-gauge-score .label {
  font-size: 9.5px;
  font-weight: 600;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-top: 2px;
}

.mini-factor-list {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.mini-factor-row {
  display: grid;
  grid-template-columns: 80px 1fr 28px;
  align-items: center;
  gap: 8px;
}

.mini-factor-name {
  font-size: 10.5px;
  color: var(--text-dim);
}

.mini-factor-track {
  height: 5px;
  background: var(--border);
  border-radius: 4px;
  overflow: hidden;
  display: block;
  position: relative;
}

.mini-factor-fill {
  display: block;
  height: 100%;
  border-radius: 4px;
}

.mini-factor-value {
  font-family: var(--font-mono);
  font-size: 10.5px;
  text-align: right;
}

/* mini gex */

#ov-gex-canvas {
  width: 100%;
  height: 160px;
  display: block;
}

.mini-gex-stats {
  display: flex;
  justify-content: space-between;
  margin-top: 10px;
  font-size: 11px;
  color: var(--text-faint);
}

.mini-gex-stats .value {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 13px;
}

/* mini table */

.mini-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 11.5px;
}

.mini-table th {
  text-align: left;
  font-size: 9.5px;
  font-weight: 600;
  color: var(--text-faint);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0 8px 6px;
  border-bottom: 1px solid var(--border);
}

.mini-table td {
  padding: 7px 8px;
  border-bottom: 1px solid var(--border);
  font-family: var(--font-mono);
  white-space: nowrap;
}

.mini-table tbody tr:last-child td {
  border-bottom: none;
}

/* mini signals */

.mini-signal-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 10px 12px;
  background: var(--surface-raised);
}

.mini-signal-card + .mini-signal-card {
  margin-top: 8px;
}

.mini-signal-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 5px;
}

.mini-signal-desc {
  font-size: 11px;
  color: var(--text-dim);
  line-height: 1.4;
  margin: 0;
}

/* mini vanna/charm */

.mini-vc-group + .mini-vc-group {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.mini-vc-title {
  font-size: 10px;
  font-weight: 600;
  color: var(--text-faint);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}

.mini-vc-row {
  display: grid;
  grid-template-columns: 40px 1fr;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}

.mini-vc-strike {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--text-dim);
}

.mini-vc-track {
  position: relative;
  height: 13px;
  background: var(--border);
  border-radius: 3px;
  overflow: hidden;
  display: block;
}

.mini-vc-fill {
  position: absolute;
  top: 1px;
  bottom: 1px;
  border-radius: 2px;
}

/* mini calendar */

.mini-calendar-row {
  display: grid;
  grid-template-columns: 42px 1fr auto;
  align-items: center;
  gap: 8px;
  padding: 7px 0;
  border-bottom: 1px solid var(--border);
}

.mini-calendar-row:last-child {
  border-bottom: none;
}

.mini-calendar-time {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--text-dim);
}

.mini-calendar-event {
  font-size: 11.5px;
}

.impact-dot-sm {
  width: 6px;
  height: 6px;
  border-radius: 50%;
}

/* mini heatmap */

.mini-heatmap-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 7px;
}

.mini-heat-cell {
  border-radius: var(--radius-sm);
  padding: 9px 8px;
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.mini-heat-cell .ticker {
  font-size: 10px;
  font-weight: 700;
  color: var(--text-dim);
}

.mini-heat-cell .change {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
}

/* mini vix */

#ov-vix-canvas {
  width: 100%;
  height: 90px;
  display: block;
}

/* ---------- GEX Levels view ---------- */

.gex-view-header {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 18px 24px 0;
}

.gex-view-header h2 {
  font-size: 17px;
}

.gex-view-header .symbol-tag {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 2px 9px;
  border-radius: 5px;
}

.last-updated {
  font-size: 11px;
}

.gex-view-header .last-updated {
  margin-left: auto;
  font-size: 12px;
}

/* ---------- Responsive ---------- */

@media (max-width: 1280px) {
  .overview-grid {
    grid-template-columns: 1.6fr 1fr;
  }
  .overview-col-3 {
    grid-column: span 2;
  }
}

@media (max-width: 980px) {
  .sidebar {
    width: 64px;
  }
  .sidebar-item span {
    display: none;
  }
  .sidebar-item {
    justify-content: center;
  }
  .main-content {
    left: 64px;
  }
  .topnav-logo {
    width: auto;
  }
}

@media (max-width: 860px) {
  .overview-grid {
    grid-template-columns: 1fr;
  }
  .overview-col-3 {
    grid-column: auto;
  }
  .mini-gauge-panel .mini-panel-body {
    flex-direction: column;
  }
  .topnav-search {
    max-width: 200px;
  }
}