/* Layout styles - App shell, header, sidebar, content area */

/* ============================================
   App Layout Shell
   ============================================ */

.app-layout {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

/* ============================================
   Header
   ============================================ */

header {
  padding: 0 var(--sp-6);
  border-bottom: 1px solid var(--border-subtle);
  height: 4rem;
  display: flex;
  align-items: center;
  background: var(--surface-card);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.header-left {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  flex: 1;
}

.header-center {
  flex: 0 0 auto;
}

.header-plan-name {
  font-size: var(--text-base);
  font-weight: var(--fw-semibold);
  color: var(--text-main);
  max-width: 360px;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.header-right {
  display: flex;
  align-items: center;
  gap: var(--sp-1);
  flex: 1;
  justify-content: flex-end;
}

.header-divider {
  height: 1.5rem;
  width: 1px;
  background: var(--border-subtle);
  margin: 0 var(--sp-2);
}

.header-title {
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
}

.tagline {
  font-size: var(--text-2xs);
  color: var(--text-muted);
  font-weight: var(--fw-regular);
}

.eyebrow {
  display: none;
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: var(--sp-2);
  font-weight: var(--fw-semibold);
}

/* Logo Icon */
.logo-icon {
  width: 32px;
  height: 32px;
  background: var(--primary);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo-icon svg {
  width: 20px;
  height: 20px;
  stroke: white;
}

h1 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: var(--fw-bold);
  letter-spacing: -0.02em;
  line-height: 1.2;
}

h1 em {
  font-style: italic;
  color: var(--text-secondary);
}

.subtitle {
  display: none;
  margin-top: var(--sp-4);
  color: var(--text-muted);
  font-size: 1rem;
  max-width: 500px;
}

/* ============================================
   Main Grid Layout (legacy - kept for compatibility)
   ============================================ */

main:not(.app-main) {
  display: grid;
  grid-template-columns: 380px 1fr;
  min-height: calc(100vh - 4rem);
}

/* ============================================
   Sidebar
   ============================================ */

.sidebar,
.app-sidebar {
  width: 16rem;
  flex-shrink: 0;
  background: var(--sidebar-bg);
  border-right: 1px solid var(--sidebar-border);
  padding: 0;
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
}

/* Sidebar Brand Area */
.sidebar-brand {
  height: 4.5rem;
  padding: 0 var(--sp-6);
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--sidebar-divider);
  flex-shrink: 0;
}

.sidebar-logo {
  flex-shrink: 0;
  line-height: 0;
}

.sidebar-brand .logo-icon {
  width: 32px;
  height: 32px;
  background: var(--primary);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
}

.sidebar-brand .brand-name {
  font-size: var(--text-lg);
  font-weight: var(--fw-bold);
  color: var(--sidebar-text-active);
}

/* Sidebar Navigation */
.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: var(--sp-4) var(--sp-3);
}

.nav-section-label {
  padding: var(--sp-2) var(--sp-3);
  font-size: var(--text-xs);
  font-weight: var(--fw-bold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #9CA3AF;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-2) var(--sp-3);
  border-radius: var(--radius);
  font-size: 1rem; /* 16px, one point smaller than --text-base (17px) */
  font-weight: var(--fw-medium);
  color: var(--sidebar-text);
  text-decoration: none;
  transition: all var(--transition-base);
  cursor: pointer;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
}

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

.nav-item.active {
  background: var(--primary);
  color: white;
  font-weight: var(--fw-semibold);
  box-shadow: var(--shadow-primary);
}

.nav-item .material-symbols-outlined {
  font-size: 20px;
  font-variation-settings: 'wght' 300, 'FILL' 0, 'GRAD' 0, 'opsz' 20;
}

.nav-divider {
  height: 1px;
  background: var(--sidebar-divider);
  margin: var(--sp-2) var(--sp-3);
}

/* Pro Tip Card (sidebar bottom) */
.sidebar-tip {
  margin: var(--sp-3);
  padding: var(--sp-4);
  background: linear-gradient(135deg, #374151, #1F2937);
  border: 1px solid var(--sidebar-divider);
  border-radius: var(--radius-lg);
  font-size: var(--text-2xs);
  color: #D1D5DB;
}

.sidebar-tip .tip-label {
  font-size: var(--text-2xs);
  font-weight: var(--fw-bold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #9CA3AF;
  margin-bottom: var(--sp-2);
}

/* Legacy sidebar form support */
.sidebar form {
  flex: 1;
  overflow-y: scroll;
  padding: var(--sp-6) var(--sp-6) var(--sp-4) var(--sp-6);
}

.sidebar-footer {
  flex-shrink: 0;
  padding: var(--sp-6);
  background: var(--surface-card);
  border-top: 1px solid var(--border-subtle);
}

.sidebar-header {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  margin-bottom: var(--sp-8);
  padding-bottom: var(--sp-6);
  border-bottom: 1px solid var(--border-subtle);
}

.sidebar-header svg {
  width: 20px;
  height: 20px;
  color: var(--primary);
}

.sidebar-header span {
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  font-weight: var(--fw-semibold);
  color: var(--text-secondary);
}

/* Sidebar Tabs */
.sidebar-tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--border-subtle);
  background: var(--page-bg);
  margin: 0;
  padding: 0;
  position: sticky;
  top: 0;
  z-index: 10;
  flex-shrink: 0;
}

.sidebar-tab {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-1);
  padding: var(--sp-4) var(--sp-2) var(--sp-3);
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  font-family: var(--font-display);
  font-size: 0.65rem;
  font-weight: var(--fw-medium);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition-base);
}

.sidebar-tab svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
}

.sidebar-tab:hover {
  color: var(--text-secondary);
  background: rgba(0, 181, 119, 0.03);
}

.sidebar-tab.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
  background: var(--surface-card);
}

.sidebar-tab.active svg {
  stroke: var(--primary);
}

.sidebar-tab:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: -2px;
}

/* Tab Panels */
.sidebar-tab-panel {
  display: none;
}

.sidebar-tab-panel.active {
  display: block;
  animation: tabFadeIn 0.2s ease;
}

@keyframes tabFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* ============================================
   Content Area
   ============================================ */

.content,
.app-main {
  padding: var(--sp-6);
  overflow-y: auto;
  height: calc(100vh - 4rem);
  min-width: 0;
  max-width: 100%;
  box-sizing: border-box;
  background: var(--page-bg);
  flex: 1;
}

/* Content column (new layout) */
.app-content-col {
  display: flex;
  flex-direction: column;
  flex: 1;
  overflow: hidden;
}

.app-main > .container {
  max-width: 80rem;
  margin: 0 auto;
}

.charts-grid {
  display: grid;
  gap: var(--sp-6);
}

/* ============================================
   Monte Carlo Two-Column Layout
   ============================================ */

.mc-layout {
  display: flex;
  gap: var(--sp-6);
  align-items: flex-start;
  margin-bottom: var(--sp-6);
}

.mc-main {
  flex: 0 0 70%;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
}

.mc-sidebar {
  flex: 1;
  min-width: 0;
  position: sticky;
  top: var(--sp-6);
}

.mc-sidebar-inner {
  background: var(--surface-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--sp-5);
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
}

.mc-sidebar-title {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: var(--fw-bold);
  color: var(--text-main);
  margin: 0 0 var(--sp-1) 0;
  padding-bottom: var(--sp-3);
  border-bottom: 1px solid var(--border-subtle);
}

.mc-sidebar-tabs {
  display: flex;
  align-items: baseline;
  gap: 0;
  padding-bottom: var(--sp-3);
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: var(--sp-1);
}

.mc-sidebar-tab-btn {
  background: none;
  border: none;
  padding: 0 var(--sp-3);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: var(--fw-medium);
  color: var(--text-muted);
  cursor: pointer;
  line-height: 1.2;
  white-space: nowrap;
  transition: color 0.15s ease;
}

.mc-sidebar-tab-btn:first-child {
  padding-left: 0;
}

.mc-sidebar-tab-btn.active {
  color: var(--text-main);
  font-weight: var(--fw-bold);
}

.mc-sidebar-tab-btn:hover:not(.active) {
  color: var(--text-secondary);
}

.mc-sidebar-tab-panel {
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
}

.mc-sidebar-section {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
}

.mc-sidebar-section h4 {
  font-size: var(--text-xs);
  font-weight: var(--fw-bold);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin: 0;
}

.mc-sidebar-section p {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
}

.mc-sidebar-section em {
  color: var(--text-main);
  font-style: normal;
  font-weight: var(--fw-medium);
}

.mc-sidebar-section strong {
  color: var(--text-main);
  font-weight: var(--fw-semibold);
}

.mc-metric-glossary {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  margin: 0;
}

.mc-metric-glossary dt {
  font-size: var(--text-xs);
  font-weight: var(--fw-semibold);
  color: var(--text-main);
}

.mc-metric-glossary dd {
  font-size: var(--text-xs);
  color: var(--text-secondary);
  line-height: 1.5;
  margin: 0 0 var(--sp-1) 0;
}

.mc-sidebar-note {
  background: var(--page-bg);
  border-radius: var(--radius);
  padding: var(--sp-3);
  border-left: 3px solid var(--primary);
}

@media (max-width: 900px) {
  .mc-layout {
    flex-direction: column;
  }
  .mc-main {
    flex: none;
    width: 100%;
  }
  .mc-sidebar {
    position: static;
    width: 100%;
  }
}

/* ============================================
   Page Views (content switching)
   ============================================ */

.page-view {
  display: none;
}

.page-view.active {
  display: block;
  animation: pageFadeIn 0.2s ease;
}

@keyframes pageFadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--sp-6);
  gap: var(--sp-4);
}

.page-title {
  font-size: var(--text-2xl);
  font-weight: var(--fw-bold);
  color: var(--text-main);
  margin: 0;
}

.page-subtitle {
  font-size: var(--text-sm);
  color: var(--text-muted);
  margin: var(--sp-1) 0 0 0;
}

/* Empty state for pages like Roadmap */
.empty-state {
  text-align: center;
  padding: var(--sp-8) var(--sp-6);
  color: var(--text-muted);
}

.empty-state .material-symbols-outlined {
  font-size: 3rem;
  color: var(--primary);
  margin-bottom: var(--sp-4);
  display: block;
}

.empty-state h3 {
  font-size: var(--text-xl);
  color: var(--text-main);
  margin: 0 0 var(--sp-2) 0;
}

.empty-state p {
  max-width: 400px;
  margin: 0 auto;
  line-height: 1.5;
}

/* Mobile logo in header */
.header-mobile-logo {
  display: none;
  font-size: var(--text-lg);
  font-weight: var(--fw-bold);
  color: var(--text-main);
}

@media (max-width: 768px) {
  .header-mobile-logo {
    display: block;
  }
}

/* Icon buttons in header */
.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  padding: 0;
  border: none;
  background: transparent;
  border-radius: var(--radius-lg);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-base);
}

.btn-icon:hover {
  background: var(--page-bg);
  color: var(--text-main);
}

.btn-icon .material-symbols-outlined {
  font-size: 20px;
}

/* Header user section */
.header-user {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
}

.header-user-name {
  font-size: var(--text-sm);
  font-weight: var(--fw-medium);
  color: var(--text-secondary);
  display: none;
  white-space: nowrap;
}

@media (min-width: 1024px) {
  .header-user-name {
    display: block;
  }
}

.header-avatar {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  border: none;
  padding: 0;
  cursor: pointer;
  overflow: hidden;
  background: #009C65;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.header-avatar:hover {
  background: #007A4E;
}

.header-avatar-initials {
  font-size: 10px;
  font-weight: 700;
  color: #fff;
  line-height: 1;
  text-transform: uppercase;
  pointer-events: none;
  letter-spacing: 0.5px;
}

/* Sidebar logo */
.sidebar-logo {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sidebar-brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1;
  gap: 0;
}

.sidebar-brand-text .brand-name-text {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--sidebar-text-active);
  line-height: 1.2;
}

.sidebar-brand-text .brand-subtitle {
  font-size: 0.595rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.13em;
  color: var(--primary);
  margin-top: 2px;
}

[data-theme="light"] .sidebar-brand-text .brand-name-text {
  color: #0f172a;
}

/* Sidebar tip card enhancements */
.sidebar-tip-header {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  margin-bottom: var(--sp-2);
}

.sidebar-tip-header .material-symbols-outlined {
  font-size: 16px;
  color: var(--primary);
}

.sidebar-tip-label {
  font-size: var(--text-2xs);
  font-weight: var(--fw-bold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #9CA3AF;
}

.sidebar-tip-text {
  margin: 0 0 var(--sp-2) 0;
  line-height: 1.4;
}

.sidebar-tip-link {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-1);
  font-size: var(--text-2xs);
  font-weight: var(--fw-semibold);
  color: var(--primary);
  text-decoration: none;
}

.sidebar-tip-link:hover {
  text-decoration: underline;
}

.sidebar-tip-link .material-symbols-outlined {
  font-size: 14px;
}

/* Light theme sidebar overrides */
[data-theme="light"] .nav-item.active {
  background: rgba(0, 181, 119, 0.1);
  color: var(--primary-dark);
  border: 1px solid rgba(0, 181, 119, 0.1);
  box-shadow: none;
}

[data-theme="light"] .sidebar-tip {
  background: linear-gradient(135deg, #ecfdf5, #ffffff);
  border-color: var(--border-subtle);
  color: var(--text-secondary);
}

[data-theme="light"] .sidebar-tip .tip-label {
  color: var(--text-muted);
}

/* ============================================
   Optimize Page
   ============================================ */

.optimize-content {
  padding: var(--sp-6);
  height: calc(100vh - 12rem);
}

/* ── Optimize loading plan label ─────────────────────────── */
.optimize-loading-plan {
  margin: 0;
  font-size: 0.875rem;
  font-weight: 500;
}

.optimize-loading-plan.plan-match   { color: #10b981; }
.optimize-loading-plan.plan-mismatch { color: #d97706; }

[data-theme="dark"] .optimize-loading-plan.plan-match   { color: #34d399; }
[data-theme="dark"] .optimize-loading-plan.plan-mismatch { color: #fbbf24; }

/* ── Optimize results plan label ─────────────────────────── */
.optimize-results-plan {
  margin: 4px 0 0;
  font-size: 0.8125rem;
  font-weight: 500;
}

.optimize-results-plan.plan-match    { color: #10b981; }
.optimize-results-plan.plan-mismatch { color: #d97706; }

[data-theme="dark"] .optimize-results-plan.plan-match    { color: #34d399; }
[data-theme="dark"] .optimize-results-plan.plan-mismatch { color: #fbbf24; }

.optimize-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  gap: var(--sp-4);
}

.optimize-spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--border-subtle);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.optimize-empty {
  padding: var(--sp-8) var(--sp-6);
}

.optimize-empty-content {
  max-width: 640px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.optimize-empty-content h3 {
  color: var(--text-primary);
  margin-bottom: var(--sp-4);
}

.optimize-empty-content p {
  margin-bottom: var(--sp-3);
}

.optimize-empty-content p:last-child {
  margin-top: var(--sp-4);
  margin-bottom: 0;
  color: var(--text-primary);
  font-weight: 500;
}

.optimize-accordion-container {
  padding: var(--sp-6);
  max-width: 720px;
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
}

.optimize-accordion-section {
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.optimize-accordion-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--sp-4) var(--sp-5);
  background: var(--surface-card);
  border: none;
  cursor: pointer;
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: var(--fw-semibold);
  color: var(--text-main);
  text-align: left;
  transition: background 0.15s ease;
}

.optimize-accordion-btn:hover {
  background: var(--page-bg);
}

.optimize-accordion-icon {
  font-size: 20px;
  color: var(--text-muted);
  flex-shrink: 0;
}

.optimize-accordion-panel {
  padding: var(--sp-4) var(--sp-5) var(--sp-5);
  background: var(--surface-card);
  border-top: 1px solid var(--border-subtle);
}

.optimize-results {
  display: grid;
  grid-template-columns: 60% 40%;
  gap: var(--sp-6);
  height: 100%;
}

.optimize-list-pane,
.optimize-detail-pane {
  background: var(--surface-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.optimize-list-header,
.optimize-detail-header {
  padding: var(--sp-4);
  border-bottom: 1px solid var(--border-subtle);
  background: var(--page-bg);
}

.optimize-detail-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
}

.optimize-list-header h3,
.optimize-detail-header h3 {
  margin: 0;
  font-size: 1.125rem;
}

.optimize-list-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
}

.optimize-results-cancel-btn {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  font-size: 0.8125rem;
  flex-shrink: 0;
}
.optimize-results-cancel-btn .material-symbols-outlined {
  font-size: 16px;
}

.detail-apply-header-btn {
  flex-shrink: 0;
  padding: var(--sp-1) var(--sp-3);
  font-size: 0.8125rem;
  display: flex;
  align-items: center;
  gap: var(--sp-1);
}

.detail-apply-header-btn .material-symbols-outlined {
  font-size: 1rem;
}

.optimize-list-subtitle {
  margin: 0.25rem 0 0 0;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.optimize-strategy-list {
  flex: 1;
  overflow-y: auto;
  padding: var(--sp-3);
}

.optimize-strategy-card {
  padding: var(--sp-4);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  margin-bottom: var(--sp-3);
  cursor: pointer;
  transition: all var(--transition-base);
}

.optimize-strategy-card:hover {
  border-color: var(--primary);
  background: var(--page-bg);
}

.optimize-strategy-card.selected {
  background: var(--primary-bg);
  border-color: var(--primary);
  border-width: 2px;
}

.strategy-card-content {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-3);
}

.optimize-strategy-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 36px;
  background: var(--primary);
  color: white;
  border-radius: 50%;
  font-weight: 600;
  font-size: 1rem;
  flex-shrink: 0;
}

.strategy-card-info {
  flex: 1;
}

.strategy-card-title {
  margin-bottom: var(--sp-2);
  font-size: 0.9375rem;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.strategy-optimal-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.1rem 0.45rem;
  border-radius: 999px;
  font-size: 0.68rem;
  font-weight: 600;
  background: var(--primary-bg);
  color: var(--primary);
  border: 1px solid var(--primary);
  white-space: nowrap;
  flex-shrink: 0;
}

.strategy-alt-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.1rem 0.45rem;
  border-radius: 999px;
  font-size: 0.68rem;
  font-weight: 500;
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
  white-space: nowrap;
  flex-shrink: 0;
}

.optimize-strategy-card.non-optimal {
  opacity: 0.75;
  border-style: dashed;
}

.optimize-strategy-card.non-optimal:hover,
.optimize-strategy-card.non-optimal.selected {
  opacity: 1;
  border-style: solid;
}

.optimize-strategy-number.non-optimal {
  background: var(--text-secondary);
}

.strategy-card-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-3);
}

.metric-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.metric-item small {
  color: var(--text-secondary);
  font-size: 0.75rem;
}

.metric-item div {
  font-weight: 500;
  font-size: 0.875rem;
}

.optimize-detail-content {
  flex: 1;
  overflow-y: auto;
  padding: var(--sp-4);
}

.detail-section h4 {
  margin: 0 0 var(--sp-4) 0;
  font-size: 1.25rem;
}

.detail-group {
  margin-bottom: var(--sp-4);
}

.detail-group h5 {
  margin: 0 0 var(--sp-2) 0;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
  font-weight: 600;
}

.detail-param {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--sp-2) 0;
  border-bottom: 1px solid var(--border-subtle);
}

.detail-param:last-child {
  border-bottom: none;
}

.param-label {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.param-value {
  font-weight: 500;
  text-align: right;
}

.optimize-detail-empty {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  padding: var(--sp-2);
  color: var(--text-secondary);
}

.optimize-detail-empty h4 {
  font-size: var(--text-base);
  font-weight: var(--fw-bold);
  color: var(--text-main);
  margin: 0 0 var(--sp-1) 0;
}

.optimize-detail-empty p {
  font-size: var(--text-sm);
  line-height: 1.65;
  margin: 0;
}

.optimize-detail-callout {
  background: var(--page-bg);
  border-left: 3px solid var(--primary);
  border-radius: var(--radius);
  padding: var(--sp-3) var(--sp-4);
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
}

.optimize-detail-callout p {
  font-size: var(--text-sm);
  line-height: 1.65;
  margin: 0;
  color: var(--text-secondary);
}

.optimize-detail-closing {
  font-style: italic;
  color: var(--text-muted) !important;
}

/* ── Apply Strategy button ─────────────────────────────────── */

.detail-apply-section {
  padding: var(--sp-4);
  border-top: 1px solid var(--border-subtle);
  margin-top: var(--sp-2);
}

.detail-apply-btn {
  width: 100%;
  justify-content: center;
  gap: var(--sp-2);
}

/* ── Strategy comparison modal ─────────────────────────────── */

.strategy-apply-modal-content {
  max-width: 600px;
  width: 100%;
}

/* Compact the header/body/footer padding for this specific modal */
.strategy-apply-modal-content .modal-header {
  padding: var(--sp-4) var(--sp-5);
}

.strategy-apply-modal-content .modal-header h3 {
  font-size: 1rem;
}

.strategy-apply-modal-content .modal-body {
  padding: var(--sp-4) var(--sp-5);
}

.strategy-apply-modal-content .modal-footer {
  padding: var(--sp-3) var(--sp-5);
}

.strategy-apply-subtitle {
  color: var(--text-secondary);
  margin: 0 0 var(--sp-3) 0;
  font-size: 0.875rem;
}

.strategy-compare-table {
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 0;
}

.compare-header-row,
.compare-row {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  align-items: center;
}

.compare-header-row {
  background: var(--surface-secondary);
  padding: 5px var(--sp-3);
  font-size: 0.75rem;
  font-weight: var(--fw-semibold);
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.compare-row {
  padding: var(--sp-2) var(--sp-3);
  border-top: 1px solid var(--border-subtle);
}

.compare-metric-label {
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.compare-col-header {
  font-size: 0.75rem;
}

.compare-value {
  font-size: 0.875rem;
  font-weight: var(--fw-semibold);
  color: var(--text-main);
}

.compare-col-header.strategy-col,
.compare-value.strategy-col {
  color: var(--primary);
}

.compare-value.compare-better {
  color: #16a34a;
}

.compare-value.compare-worse {
  color: #dc2626;
}

.compare-group-label {
  font-size: 0.6875rem;
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
  margin: var(--sp-3) 0 var(--sp-1) 0;
}

.compare-group-label:first-of-type {
  margin-top: 0;
}

.compare-value.compare-unchanged {
  color: var(--text-secondary);
  font-weight: var(--fw-normal);
}

/* ── Strategy save options modal ───────────────────────────── */

.strategy-save-modal-content {
  max-width: 440px;
  width: 100%;
}

.save-mode-options {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  margin-top: var(--sp-4);
}

.save-mode-option {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-3);
  padding: var(--sp-3) var(--sp-4);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}

.save-mode-option:has(input:checked) {
  border-color: var(--primary);
  background: rgba(99, 102, 241, 0.05);
}

.save-mode-option input[type="radio"] {
  margin-top: 3px;
  flex-shrink: 0;
}

.save-mode-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-top: 2px;
}

.save-name-input {
  margin-top: var(--sp-2);
  width: 100%;
  padding: var(--sp-1) var(--sp-2);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  background: var(--surface-input, var(--surface-card));
  color: var(--text-main);
  font-size: 0.875rem;
  box-sizing: border-box;
}

/* ── Modal footer (shared) ─────────────────────────────────── */

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--sp-3);
  padding: var(--sp-4) var(--sp-6);
  border-top: 1px solid var(--border-subtle);
}

/* Info icon button */
.info-icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  margin-left: var(--sp-2);
  padding: 0;
  background: transparent;
  border: none;
  border-radius: 50%;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-base);
  vertical-align: middle;
}

.info-icon-btn:hover {
  background: var(--primary-bg);
  border-color: var(--primary);
  color: var(--primary);
}

.info-icon-btn .material-symbols-outlined {
  font-size: 16px;
}

/* Info modal specific styling */
.info-modal-content {
  max-width: 600px;
}

.info-modal-content .modal-body {
  line-height: 1.6;
}

.info-modal-content .modal-body p {
  margin-bottom: var(--sp-3);
}

.info-modal-content .modal-body p:last-child {
  margin-bottom: 0;
}

.info-highlight {
  padding: var(--sp-3);
  background: var(--primary-bg);
  border-left: 3px solid var(--primary);
  border-radius: var(--radius-md);
  font-style: italic;
  color: var(--text-secondary);
}