/* ═══════════════════════════════════════════════════════════
   Layout — Body flex, Sidebar, Main, Panel, Overlay, Modals
   ═══════════════════════════════════════════════════════════ */

/* ─── Body: flex row ─── */

body {
  display: flex;
  position: relative;
}

/* ─── Auth Screen ─── */

.auth-screen {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--bg-0);
  display: flex;
  align-items: center;
  justify-content: center;
}

.auth-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  padding: 48px;
}

.auth-logo {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--text-primary);
}

.auth-subtitle {
  font-size: 0.846rem;
  color: var(--text-tertiary);
  margin-top: -8px;
}

.auth-form {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}

.auth-input {
  width: 220px;
  padding: 10px 14px;
  background: var(--bg-2);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.9rem;
  font-family: var(--font-sans);
  outline: none;
  transition: border-color var(--duration-fast);
}

.auth-input:focus {
  border-color: var(--accent-primary);
}

.auth-input::placeholder {
  color: var(--text-ghost);
}

.auth-btn {
  padding: 10px 20px;
  background: var(--accent-primary);
  color: #fff;
  border: none;
  border-radius: var(--radius-md);
  font-size: 0.846rem;
  font-weight: 600;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: opacity var(--duration-fast);
}

.auth-btn:hover {
  opacity: 0.85;
}

.auth-error {
  font-size: 0.769rem;
  color: var(--accent-red, #d45252);
}

/* ─── Sidebar ─── */

.sidebar {
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  width: var(--sidebar-width);
  background: var(--bg-1);
  border-right: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  z-index: 40;
  flex-shrink: 0;
  overflow: hidden;
}

.sidebar-top {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 12px 0 8px;
}

.sidebar-top::-webkit-scrollbar {
  width: 4px;
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 16px 12px;
}

.logo-mark {
  display: none;
}

.logo-text {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 0.15em;
}

/* Sidebar search button */

.sidebar-search {
  display: flex;
  align-items: center;
  gap: 8px;
  width: calc(100% - 24px);
  margin: 0 12px 8px;
  padding: 6px 10px;
  background: var(--bg-2);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  font-size: 0.846rem;
  color: var(--text-tertiary);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-in-out);
}

.sidebar-search:hover {
  border-color: var(--border-default);
  color: var(--text-secondary);
  background: var(--bg-3);
}

.sidebar-search svg {
  flex-shrink: 0;
  display: inline;
}

.sidebar-search span {
  flex: 1;
  text-align: left;
}

.sidebar-search kbd {
  margin-left: auto;
  font-size: 0.692rem;
  min-width: 18px;
  height: 18px;
  padding: 0 4px;
}

/* Sidebar sections */

.sidebar-section {
  padding: 0 8px;
  margin-bottom: 4px;
}

.sidebar-section-label {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 8px 4px;
  font-size: 0.692rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-tertiary);
  user-select: none;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: color var(--duration-fast);
}

.sidebar-section-label:hover {
  color: var(--text-secondary);
}

.sidebar-section-label svg:first-child {
  flex-shrink: 0;
  opacity: 0.5;
}

.sidebar-section-label span {
  flex: 1;
}

.section-chevron {
  flex-shrink: 0;
  opacity: 0.4;
  transition: transform var(--duration-normal);
}

.sidebar-section.collapsed .section-chevron {
  transform: rotate(-90deg);
}

.sidebar-section.collapsed .sidebar-item,
.sidebar-section.collapsed .sidebar-item-ghost,
.sidebar-section.collapsed #sidebar-phases,
.sidebar-section.collapsed #sidebar-saved-views {
  display: none;
}

/* Sidebar items (buttons) */

.sidebar-item {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 0 8px;
  height: 30px;
  border-radius: var(--radius-sm);
  font-size: 0.846rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-in-out);
  user-select: none;
  text-align: left;
}

.sidebar-item:hover {
  color: var(--text-primary);
  background: var(--bg-2);
}

.sidebar-item.active {
  color: var(--text-primary);
  background: var(--bg-3);
}

.sidebar-item svg {
  flex-shrink: 0;
  opacity: 0.5;
  display: inline;
}

.sidebar-item.active svg {
  opacity: 0.8;
}

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

.sidebar-count {
  font-size: 0.692rem;
  font-family: var(--font-mono);
  color: var(--text-tertiary);
  flex-shrink: 0;
  min-width: 18px;
  text-align: right;
}

.sidebar-phase-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

.phase-ring {
  flex-shrink: 0;
}

/* Sidebar ghost items (Import MD, New View) */

.sidebar-item-ghost {
  color: var(--text-tertiary);
}

.sidebar-item-ghost:hover {
  color: var(--text-secondary);
}

/* Sidebar bottom */

.sidebar-bottom {
  padding: 8px;
  border-top: 1px solid var(--border-subtle);
  flex-shrink: 0;
}

/* User switch */

.sidebar-user-switch {
  display: flex;
  gap: 4px;
  margin-bottom: 4px;
}

.user-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 1;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  font-size: 0.769rem;
  color: var(--text-tertiary);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-in-out);
}

.user-btn:hover {
  background: var(--bg-2);
  color: var(--text-secondary);
}

.user-btn.active {
  background: var(--bg-3);
  color: var(--text-primary);
}

/* ─── Main Area ─── */

.main {
  flex: 1;
  margin-left: var(--sidebar-width);
  display: flex;
  flex-direction: column;
  min-width: 0;
  height: 100vh;
}

/* Topbar */

.topbar {
  height: var(--topbar-height);
  min-height: var(--topbar-height);
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-0);
  z-index: 20;
  flex-shrink: 0;
}

.topbar-left {
  display: flex;
  align-items: baseline;
  gap: 10px;
  min-width: 0;
}

.topbar-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
}

.topbar-count {
  font-size: 0.769rem;
  font-family: var(--font-mono);
  color: var(--text-tertiary);
  white-space: nowrap;
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

/* View mode toggle buttons */

.topbar-view-modes {
  display: flex;
  align-items: center;
  background: var(--bg-2);
  border-radius: var(--radius-sm);
  padding: 2px;
  gap: 1px;
}

.view-mode-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  border-radius: var(--radius-xs);
  font-size: 0.769rem;
  font-weight: 500;
  color: var(--text-tertiary);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-in-out);
  white-space: nowrap;
}

.view-mode-btn:hover {
  color: var(--text-secondary);
}

.view-mode-btn.active {
  background: var(--bg-3);
  color: var(--text-primary);
  box-shadow: var(--shadow-sm);
}

.view-mode-btn svg {
  display: inline;
  flex-shrink: 0;
}

/* Filter bar */

.filterbar {
  height: var(--filterbar-height);
  min-height: var(--filterbar-height);
  padding: 0 20px;
  display: flex;
  align-items: center;
  gap: 6px;
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-0);
  z-index: 15;
  flex-shrink: 0;
  overflow-x: auto;
}

.filterbar::-webkit-scrollbar {
  display: none;
}

.filter-chips {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

.filter-sep {
  color: var(--text-ghost);
  font-size: 0.769rem;
  user-select: none;
}

.filter-active-pills {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: nowrap;
  overflow-x: auto;
  margin-left: 4px;
}

.filter-active-pills::-webkit-scrollbar {
  display: none;
}

.filter-right {
  margin-left: auto;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 6px;
}

.sort-label {
  font-size: 0.692rem;
  color: var(--text-tertiary);
  white-space: nowrap;
}

.sort-select {
  background: var(--bg-2);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 3px 24px 3px 8px;
  font-size: 0.769rem;
  color: var(--text-secondary);
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='8' height='5' viewBox='0 0 8 5' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1l3 3 3-3' stroke='%236A6864' stroke-width='1.2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 6px center;
  transition: all var(--duration-fast) var(--ease-in-out);
}

.sort-select:hover {
  border-color: var(--border-default);
}

.sort-select:focus {
  border-color: var(--accent-primary);
}

.sort-select option {
  background: var(--bg-2);
  color: var(--text-primary);
}

/* Content area */

.content {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  position: relative;
}

/* ─── Overlay (dark backdrop for panel) ─── */

.overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 50;
  opacity: 0;
  visibility: hidden;
  transition: all var(--duration-normal) var(--ease-in-out);
}

.overlay.open {
  opacity: 1;
  visibility: visible;
}

/* ─── Detail Panel (slide-out) ─── */

.panel {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: var(--panel-width);
  max-width: 100vw;
  background: var(--bg-1);
  border-left: 1px solid var(--border-subtle);
  z-index: 55;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform var(--duration-slow) var(--ease-out-expo);
  box-shadow: var(--shadow-xl);
}

.panel.open {
  transform: translateX(0);
}

.panel-header {
  height: var(--topbar-height);
  padding: 0 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid var(--border-subtle);
  flex-shrink: 0;
}

.panel-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.panel-nav-btn {
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--text-tertiary);
  transition: all var(--duration-fast) var(--ease-in-out);
}

.panel-nav-btn:hover {
  color: var(--text-secondary);
  background: var(--bg-3);
}

.panel-pos {
  font-size: 0.769rem;
  font-family: var(--font-mono);
  color: var(--text-tertiary);
  min-width: 40px;
  text-align: center;
}

.panel-identifier {
  font-size: 0.846rem;
  font-weight: 600;
  font-family: var(--font-mono);
  color: var(--text-secondary);
}

.panel-header-spacer {
  flex: 1;
}

.panel-close {
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--text-tertiary);
  transition: all var(--duration-fast) var(--ease-in-out);
}

.panel-close:hover {
  color: var(--text-primary);
  background: var(--bg-3);
}

/* Panel body: two-column layout */

.panel-body {
  flex: 1;
  display: flex;
  overflow: hidden;
}

.panel-content {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  min-width: 0;
}

.panel-properties {
  width: 180px;
  flex-shrink: 0;
  overflow-y: auto;
  padding: 16px;
  border-left: 1px solid var(--border-subtle);
  background: var(--bg-0);
}

/* ─── Command Palette ─── */

.cmd-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 100;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 20vh;
}

.cmd-palette {
  width: 560px;
  max-width: 90vw;
  max-height: 420px;
  background: var(--bg-2);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: cmdFadeIn var(--duration-normal) var(--ease-out-expo);
}

@keyframes cmdFadeIn {
  from {
    opacity: 0;
    transform: scale(0.96) translateY(-8px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.cmd-input-wrap {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.cmd-input-wrap svg {
  flex-shrink: 0;
  display: inline;
}

.cmd-input {
  flex: 1;
  background: transparent;
  font-size: 0.95rem;
  color: var(--text-primary);
  font-family: var(--font-sans);
}

.cmd-input::placeholder {
  color: var(--text-ghost);
}

.cmd-results {
  flex: 1;
  overflow-y: auto;
  max-height: 320px;
  padding: 6px;
}

/* Command palette result items (rendered by commands.js) */

.cmd-result-item,
.command-palette-item {
  padding: 8px 10px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: background var(--duration-fast);
  border-radius: var(--radius-sm);
  margin: 1px 0;
}

.cmd-result-item:hover,
.cmd-result-item.active,
.command-palette-item:hover,
.command-palette-item.active {
  background: var(--bg-3);
}

.cmd-result-title,
.command-palette-item-title {
  font-size: 0.846rem;
  color: var(--text-primary);
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.cmd-result-sub,
.command-palette-item-subtitle {
  font-size: 0.692rem;
  color: var(--text-tertiary);
  flex-shrink: 0;
}

.cmd-empty,
.command-palette-empty {
  padding: 24px;
  text-align: center;
  font-size: 0.846rem;
  color: var(--text-tertiary);
}

.command-palette-group-label {
  padding: 6px 10px 4px;
  font-size: 0.692rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-tertiary);
}

.cmd-footer {
  padding: 8px 16px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  gap: 16px;
  font-size: 0.692rem;
  color: var(--text-tertiary);
  flex-shrink: 0;
}

.cmd-footer span {
  display: flex;
  align-items: center;
  gap: 4px;
}

.cmd-footer kbd {
  font-size: 0.615rem;
  min-width: 16px;
  height: 16px;
  padding: 0 3px;
}

/* ─── Shortcuts Overlay ─── */

.shortcuts-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 100;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 15vh;
}

.shortcuts-modal {
  width: 560px;
  max-width: 90vw;
  background: var(--bg-2);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.shortcuts-modal h2 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.shortcuts-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.shortcut-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 6px 8px;
  border-radius: var(--radius-sm);
}

.shortcut-item kbd {
  min-width: 32px;
  text-align: center;
  padding: 3px 8px;
}

.shortcut-item span {
  font-size: 0.846rem;
  color: var(--text-secondary);
}

.shortcuts-close {
  align-self: flex-end;
  background: var(--bg-3);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  padding: 6px 16px;
  font-size: 0.846rem;
  color: var(--text-primary);
  cursor: pointer;
  font-family: var(--font-sans);
  transition: background var(--duration-fast);
}

.shortcuts-close:hover {
  background: var(--bg-0);
}

/* ─── Import Modal ─── */

.import-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 100;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 15vh;
}

.import-modal {
  width: 560px;
  max-width: 90vw;
  background: var(--bg-2);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.import-modal h2 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.import-desc {
  font-size: 0.846rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.import-desc code {
  font-family: var(--font-mono);
  font-size: 0.769rem;
  background: var(--bg-0);
  padding: 2px 6px;
  border-radius: var(--radius-xs);
  border: 1px solid var(--border-subtle);
}

.import-textarea {
  width: 100%;
  background: var(--bg-0);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  padding: 12px;
  font-family: var(--font-mono);
  font-size: 0.846rem;
  color: var(--text-primary);
  resize: vertical;
  transition: border-color var(--duration-fast);
}

.import-textarea:focus {
  border-color: var(--accent-primary);
}

.import-textarea::placeholder {
  color: var(--text-ghost);
}

.import-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

.import-status {
  font-size: 0.846rem;
  color: var(--accent-primary);
  font-family: var(--font-mono);
  padding: 8px 12px;
  background: rgba(94, 106, 210, 0.08);
  border-radius: var(--radius-md);
  border: 1px solid rgba(94, 106, 210, 0.15);
}

/* ─── Create Issue Modal ─── */

.create-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 100;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 15vh;
}

.create-modal {
  width: 560px;
  max-width: 90vw;
  background: var(--bg-2);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.create-title {
  width: 100%;
  background: transparent;
  border-bottom: 1px solid var(--border-default);
  padding: 8px 0;
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text-primary);
  font-family: var(--font-sans);
  transition: border-color var(--duration-fast);
}

.create-title::placeholder {
  color: var(--text-ghost);
}

.create-title:focus {
  border-bottom-color: var(--accent-primary);
}

.create-description {
  width: 100%;
  background: var(--bg-0);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  padding: 12px;
  font-family: var(--font-mono);
  font-size: 0.846rem;
  color: var(--text-primary);
  resize: vertical;
  transition: border-color var(--duration-fast);
}

.create-description:focus {
  border-color: var(--accent-primary);
}

.create-description::placeholder {
  color: var(--text-ghost);
}

.create-props {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.create-select {
  background: var(--bg-0);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  padding: 5px 10px;
  font-size: 0.769rem;
  color: var(--text-secondary);
  font-family: var(--font-sans);
  cursor: pointer;
  transition: all var(--duration-fast);
}

.create-select:focus {
  border-color: var(--accent-primary);
  color: var(--text-primary);
}

.create-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

/* ─── Filter Dropdown ─── */

.filter-dropdown {
  position: absolute;
  top: 0;
  left: 0;
  width: 220px;
  background: var(--bg-2);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  z-index: 50;
  overflow: hidden;
}

.filter-dropdown-header {
  padding: 10px 14px 8px;
  font-size: 0.692rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  border-bottom: 1px solid var(--border-subtle);
}

.filter-dropdown-body {
  padding: 6px;
  max-height: 260px;
  overflow-y: auto;
}