/**
 * Site Mechanic - Swiss-Minimal Design System
 *
 * Neue Grafik-inspired design tokens and components.
 * Import this file on every page before page-specific CSS.
 *
 * Fonts: Inter (body and headings), DM Serif Text for page-header__title only
 */

/* Google Fonts - DM Serif Text for headings */
@import url('https://fonts.googleapis.com/css2?family=DM+Serif+Text&display=swap');

/* ========================================
   CSS VARIABLES (Swiss-Minimal Tokens)
   ======================================== */
:root {
  /* Typography - Inter (body and headings), DM Serif Text for page titles */
  --font-sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --font-serif: "DM Serif Text", Georgia, serif;
  
  /* Colors - Swiss Minimal (Light Mode Default) */
  --color-bg: #F7F7F5;
  --color-surface: #FFFFFF;
  --color-border: #E6E6E4;
  --color-text: #242424;
  --color-heading: #1F1F1F;
  --color-muted: #606060;
  --color-accent: var(--accent-primary);
  --color-accent-hover: rgba(var(--accent-primary-rgb), 0.85);
  --color-accent-light: rgba(var(--accent-primary-rgb), 0.12);
  
  /* Semantic colors */
  --color-success: #0E7A3D;
  --color-warning: #B25000;
  --color-danger: #C41E3A;
  --color-info: #1E5AA8;
  
  /* 8pt Spacing System */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  
  /* Border radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  
  /* Layout */
  --max-width: 1120px;
  --footer-h: 56px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.08);
  --shadow-xl: 0 8px 24px rgba(0, 0, 0, 0.1);
  
  /* Transitions */
  --ease-out: cubic-bezier(0.33, 1, 0.68, 1);
  --duration-fast: 0.15s;
  --duration-normal: 0.2s;
  --duration-slow: 0.3s;
}

/* Dark mode overrides */
body:not(.white-theme):not(.light-theme) {
  --color-bg: #0A0A0A;
  --color-surface: #141414;
  --color-border: #2A2A2A;
  --color-text: #E8E8E8;
  --color-heading: #FFFFFF;
  --color-muted: #888888;
  --color-accent: var(--accent-primary);
  --color-accent-hover: rgba(var(--accent-primary-rgb), 0.85);
  --color-accent-light: rgba(var(--accent-primary-rgb), 0.12);
  --color-success: #17d247;
  --color-warning: #F59E0B;
  --color-danger: #EF4444;
  --color-info: #3B82F6;
}

/* ========================================
   BASE STYLES
   ======================================== */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.625;
  color: var(--color-text);
  background-color: var(--color-bg);
  margin: 0;
  padding: 0;
  text-align: left;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ========================================
   TYPOGRAPHY SCALE (Neue Grafik-inspired)
   ======================================== */

/* H1 - 52/56 */
h1, .h1 {
  font-family: var(--font-sans);
  font-size: 3.25rem;
  font-weight: 600;
  line-height: 1.077;
  color: var(--color-heading);
  margin: 0 0 var(--space-4) 0;
  letter-spacing: -0.02em;
}

/* H2 - 32/40 */
h2, .h2 {
  font-family: var(--font-sans);
  font-size: 2rem;
  font-weight: 600;
  line-height: 1.25;
  color: var(--color-heading);
  margin: 0 0 var(--space-4) 0;
  letter-spacing: -0.01em;
}

/* H3 - 22/30 */
h3, .h3 {
  font-family: var(--font-sans);
  font-size: 1.375rem;
  font-weight: 600;
  line-height: 1.364;
  color: var(--color-heading);
  margin: 0 0 var(--space-3) 0;
}

/* H4 - 18/26 */
h4, .h4 {
  font-family: var(--font-sans);
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1.444;
  color: var(--color-heading);
  margin: 0 0 var(--space-2) 0;
}

/* Body - 16/26, weight 400 */
p {
  font-size: 1rem;
  line-height: 1.625;
  margin: 0 0 var(--space-4) 0;
  color: var(--color-text);
}

/* Small - 13/20, weight 400 */
.text-sm, small {
  font-size: 0.8125rem;
  line-height: 1.538;
}

/* Micro labels - 12/16, weight 600, uppercase */
.text-micro, .label-micro {
  font-size: 0.75rem;
  font-weight: 600;
  line-height: 1.333;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-muted);
}

/* Tabular numbers for metrics */
.tabular-nums {
  font-variant-numeric: tabular-nums;
}

/* ========================================
   PAGE LAYOUT
   ======================================== */
.page-shell {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-6) var(--space-5);
  padding-bottom: var(--space-5);
  flex: 1 0 auto;
  background: transparent;
}

@media (max-width: 768px) {
  .page-shell {
    padding: var(--space-5) var(--space-4);
    padding-bottom: var(--space-6);
  }
}

@media (max-width: 480px) {
  .page-shell {
    padding: var(--space-4) var(--space-3);
    padding-bottom: var(--space-5);
  }
}

/* ========================================
   PAGE HEADER
   ======================================== */
.page-header {
  margin-bottom: var(--space-3);
}

.page-header__title {
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1.1;
  color: var(--color-heading);
  margin: 0 0 var(--space-2) 0;
  letter-spacing: -0.02em;
  text-align: left;
}

.page-header__subtitle {
  font-size: 1.0625rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--color-muted);
  margin: 0;
  max-width: 600px;
  text-align: left;
}

@media (max-width: 768px) {
  .page-header__title {
    font-size: 1.875rem;
  }
  
  .page-header__subtitle {
    font-size: 1rem;
  }
}

/* ========================================
   BREADCRUMB
   ======================================== */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.75rem;
  font-weight: 600;
  line-height: 1.333;
  letter-spacing: 0.02em;
  color: var(--color-muted);
  margin-bottom: var(--space-2);
  white-space: nowrap;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

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

.breadcrumb a {
  color: var(--color-muted);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-out);
}

.breadcrumb a:hover {
  color: var(--color-text);
}

.breadcrumb-sep {
  color: var(--color-border);
  -webkit-user-select: none;
  user-select: none;
}

.breadcrumb [aria-current="page"] {
  color: var(--color-text);
}

/* ========================================
   CARDS
   ======================================== */
.card {
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  margin-bottom: var(--space-4);
  box-shadow: var(--shadow-sm);
}

.card--elevated {
  box-shadow: var(--shadow-md);
}

.card--flush {
  padding: 0;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding-bottom: var(--space-3);
  margin-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-border);
}

.card-header--flush {
  padding: var(--space-4) var(--space-5);
  margin-bottom: 0;
}

.card-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-heading);
  margin: 0;
}

.card__title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-heading);
  margin: 0 0 var(--space-4) 0;
}

.card-body {
  color: var(--color-text);
}

.card-body--flush {
  padding: var(--space-5);
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-3);
  padding-top: var(--space-4);
  margin-top: var(--space-4);
  border-top: 1px solid var(--color-border);
}

/* ========================================
   BUTTONS
   ======================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.75rem 1.25rem;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  white-space: nowrap;
  text-decoration: none;
  transition: all var(--duration-fast) var(--ease-out);
}

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

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Primary button */
.btn-primary {
  background: linear-gradient(
    135deg,
    rgba(var(--accent-primary-rgb), 1),
    rgba(var(--accent-primary-rgb), 0.78)
  );
  color: var(--accent-primary-contrast, #000000) !important;
}

.btn-primary:hover:not(:disabled) {
  filter: brightness(0.95);
}

.btn-primary:active:not(:disabled) {
  transform: scale(0.98);
}

/* Secondary button */
.btn-secondary {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover:not(:disabled) {
  background: rgba(var(--accent-primary-rgb), 0.08);
  border-color: rgba(var(--accent-primary-rgb), 0.35);
  color: var(--accent-primary);
}

/* Ghost button */
.btn-ghost {
  background: transparent;
  color: var(--accent-primary);
  padding: 0.5rem 0.75rem;
}

.btn-ghost:hover:not(:disabled) {
  background: rgba(var(--accent-primary-rgb), 0.08);
}

/* Small button */
.btn-sm {
  padding: 0.5rem 0.875rem;
  font-size: 0.8125rem;
  border-radius: var(--radius-sm);
}

/* Large button */
.btn-lg {
  padding: 1rem 1.75rem;
  font-size: 1rem;
}

/* Icon-only button (legacy) */
.btn-icon {
  padding: 0.625rem;
  border-radius: var(--radius-sm);
}

/* Plain text button with icon */
.text-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0;
  min-width: unset;
  min-height: unset;
  background: none !important;
  border: none !important;
  box-shadow: none !important;
  outline: none !important;
  color: var(--color-muted);
  font-size: 0.875rem;
  font-family: inherit;
  cursor: pointer;
  transition: color var(--duration-fast);
}

.text-btn:hover,
.text-btn:focus,
.text-btn:active {
  background: none !important;
  border: none !important;
  box-shadow: none !important;
  outline: none !important;
  transform: none !important;
  color: var(--color-text);
}

.text-btn:focus-visible {
  outline: 2px solid var(--accent-primary) !important;
  outline-offset: 2px;
}

.text-btn svg {
  flex-shrink: 0;
}

/* ========================================
   FORM COMPONENTS
   ======================================== */
.form-row {
  margin-bottom: var(--space-4);
}

.form-row__label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-muted);
  margin-bottom: var(--space-2);
}

.form-row__group {
  display: flex;
  gap: var(--space-3);
  align-items: stretch;
}

.form-row__group .input {
  flex: 1;
  min-width: 0;
}

@media (max-width: 600px) {
  .form-row__group {
    flex-direction: column;
  }
}

.form-group {
  flex: 1;
}

.label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-muted);
  margin-bottom: var(--space-2);
}

.input {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.5;
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--duration-fast), box-shadow var(--duration-fast);
}

.input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-light);
}

.input::placeholder {
  color: var(--color-muted);
}

.input:disabled {
  background: var(--color-bg);
  cursor: not-allowed;
}

.helper-text {
  margin-top: var(--space-2);
  font-size: 0.8125rem;
  line-height: 1.5;
  color: var(--color-muted);
}

.helper-text--error {
  color: var(--color-danger);
}

/* Mode indicator */
.mode-indicator {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.mode-indicator__label {
  color: var(--color-muted);
}

.mode-indicator__value {
  font-weight: 600;
  color: var(--color-accent);
}

/* Select */
.select {
  appearance: none;
  padding-right: 2.5rem;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%23606060' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
}

/* ========================================
   PILLS / BADGES
   ======================================== */
.pill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 0.25rem 0.625rem;
  font-size: 0.75rem;
  font-weight: 600;
  line-height: 1.333;
  border-radius: 100px;
  white-space: nowrap;
}

.pill--success {
  background: rgba(14, 122, 61, 0.12);
  color: var(--color-success);
}

.pill--warning {
  background: rgba(178, 80, 0, 0.12);
  color: var(--color-warning);
}

.pill--danger {
  background: rgba(196, 30, 58, 0.12);
  color: var(--color-danger);
}

.pill--info {
  background: rgba(30, 90, 168, 0.12);
  color: var(--color-info);
}

.pill--neutral {
  background: var(--color-bg);
  color: var(--color-muted);
  border: 1px solid var(--color-border);
}

/* Dark mode pill adjustments */
body:not(.white-theme) .pill--success {
  background: rgba(34, 197, 94, 0.15);
}

body:not(.white-theme) .pill--warning {
  background: rgba(245, 158, 11, 0.15);
}

body:not(.white-theme) .pill--danger {
  background: rgba(239, 68, 68, 0.15);
}

body:not(.white-theme) .pill--info {
  background: rgba(59, 130, 246, 0.15);
}

/* ========================================
   TABLES (Swiss Minimal)
   ======================================== */
.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8125rem;
}

.table th {
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-muted);
  text-align: left;
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
}

.table th.text-right {
  text-align: right;
}

.table td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text);
  vertical-align: middle;
}

.table td.text-right {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.table tbody tr:hover {
  background: var(--color-accent-light);
}

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

/* ========================================
   ACCORDIONS
   ======================================== */
.accordion {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-surface);
}

.accordion-item {
  border-bottom: 1px solid var(--color-border);
}

.accordion-item:last-child {
  border-bottom: none;
}

.accordion-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--space-4) var(--space-5);
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 600;
  text-align: left;
  color: var(--color-heading);
  background: var(--color-surface);
  border: none;
  cursor: pointer;
  transition: background var(--duration-fast);
}

.accordion-trigger:hover {
  background: var(--color-bg);
}

.accordion-trigger:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: -2px;
}

.accordion-trigger__left {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.accordion-trigger__right {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.accordion-icon {
  width: 20px;
  height: 20px;
  transition: transform var(--duration-normal) var(--ease-out);
}

.accordion-item[open] .accordion-icon,
.accordion-item.open .accordion-icon {
  transform: rotate(180deg);
}

.accordion-panel {
  padding: var(--space-4) var(--space-5);
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
}

/* Native details/summary accordion */
details.accordion-item {
  border-bottom: 1px solid var(--color-border);
}

details.accordion-item:last-child {
  border-bottom: none;
}

details.accordion-item > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  background: var(--color-surface);
  transition: background var(--duration-fast);
}

details.accordion-item > summary::-webkit-details-marker {
  display: none;
}

details.accordion-item > summary:hover {
  background: var(--color-bg);
}

details.accordion-item[open] > summary {
  border-bottom: 1px solid var(--color-border);
}

details.accordion-item > .accordion-panel {
  border-top: none;
}

/* ========================================
   SCORE INDICATORS
   ======================================== */
.score {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.5rem;
  height: 2rem;
  padding: 0 var(--space-2);
  font-size: 0.875rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  border-radius: var(--radius-sm);
}

.score--excellent {
  background: rgba(14, 122, 61, 0.12);
  color: var(--color-success);
}

.score--good {
  background: rgba(30, 90, 168, 0.12);
  color: var(--color-info);
}

.score--warning {
  background: rgba(178, 80, 0, 0.12);
  color: var(--color-warning);
}

.score--critical {
  background: rgba(196, 30, 58, 0.12);
  color: var(--color-danger);
}

/* Dark mode scores */
body:not(.white-theme) .score--excellent {
  background: rgba(34, 197, 94, 0.15);
}

body:not(.white-theme) .score--good {
  background: rgba(59, 130, 246, 0.15);
}

body:not(.white-theme) .score--warning {
  background: rgba(245, 158, 11, 0.15);
}

body:not(.white-theme) .score--critical {
  background: rgba(239, 68, 68, 0.15);
}

/* ========================================
   METRIC CARDS (Dashboard)
   ======================================== */
.metric-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-4);
}

.metric-card {
  padding: var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  text-align: left;
}

.metric-card__value {
  font-size: 2rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--color-heading);
  margin-bottom: var(--space-1);
}

.metric-card__label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-muted);
}

/* ========================================
   FIXES LIST
   ======================================== */
.fixes-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.fix-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4);
  border-bottom: 1px solid var(--color-border);
}

.fix-item:last-child {
  border-bottom: none;
}

.fix-item__icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-size: 0.875rem;
}

.fix-item--critical .fix-item__icon {
  background: rgba(196, 30, 58, 0.12);
  color: var(--color-danger);
}

.fix-item--warning .fix-item__icon {
  background: rgba(178, 80, 0, 0.12);
  color: var(--color-warning);
}

.fix-item--info .fix-item__icon {
  background: rgba(30, 90, 168, 0.12);
  color: var(--color-info);
}

.fix-item__content {
  flex: 1;
  min-width: 0;
}

.fix-item__title {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-heading);
  margin: 0 0 var(--space-1) 0;
}

.fix-item__description {
  font-size: 0.8125rem;
  color: var(--color-muted);
  margin: 0;
  line-height: 1.5;
}

.fix-item__action {
  flex-shrink: 0;
}

/* Dark mode fix items */
body:not(.white-theme) .fix-item--critical .fix-item__icon {
  background: rgba(239, 68, 68, 0.15);
}

body:not(.white-theme) .fix-item--warning .fix-item__icon {
  background: rgba(245, 158, 11, 0.15);
}

body:not(.white-theme) .fix-item--info .fix-item__icon {
  background: rgba(59, 130, 246, 0.15);
}

/* ========================================
   UTILITY CLASSES
   ======================================== */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.hidden {
  display: none !important;
}

.text-center {
  text-align: center;
}

.text-right {
  text-align: right;
}

.text-muted {
  color: var(--color-muted);
}

.text-success {
  color: var(--color-success);
}

.text-warning {
  color: var(--color-warning);
}

.text-danger {
  color: var(--color-danger);
}

.flex {
  display: flex;
}

.flex-1 {
  flex: 1;
}

.items-center {
  align-items: center;
}

.justify-between {
  justify-content: space-between;
}

.gap-2 {
  gap: var(--space-2);
}

.gap-3 {
  gap: var(--space-3);
}

.gap-4 {
  gap: var(--space-4);
}

.mt-4 {
  margin-top: var(--space-4);
}

.mt-5 {
  margin-top: var(--space-5);
}

.mb-4 {
  margin-bottom: var(--space-4);
}

.mb-5 {
  margin-bottom: var(--space-5);
}

/* Text alignment - left by default */
.text-left {
  text-align: left;
}

/* Language selector - stays right-aligned */
.language-selector,
.language-selector-header {
  margin-left: auto;
  text-align: right;
}

/* ========================================
   RESULTS CONTAINER
   ======================================== */
.results-container {
  margin-top: var(--space-5);
}

/* Error message */
.error-message {
  padding: var(--space-4);
  background: rgba(196, 30, 58, 0.08);
  border: 1px solid rgba(196, 30, 58, 0.2);
  border-radius: var(--radius-md);
  color: var(--color-danger);
  font-size: 0.9375rem;
}

body:not(.white-theme) .error-message {
  background: rgba(239, 68, 68, 0.1);
  border-color: rgba(239, 68, 68, 0.25);
}

/* Reset styles when error-message contains an error-card */
.error-message:has(.error-card) {
  padding: 0;
  background: transparent;
  border: none;
  border-radius: 0;
}

/* ========================================
   MODE TABS
   ======================================== */
.tabs {
  display: flex;
  gap: var(--space-2);
  padding: var(--space-1);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-4);
  max-width: 100%;
  overflow-x: auto;
}

.tabs__item {
  flex: 1;
  min-width: 0;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 500;
  text-align: left;
  color: var(--color-muted);
  background: transparent;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--duration-fast);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.tabs__label {
  font-weight: 600;
  color: inherit;
}

.tabs__desc {
  font-size: 0.75rem;
  opacity: 0.7;
}

.tabs__time {
  font-size: 0.7rem;
  background: rgba(0, 0, 0, 0.15);
  padding: 2px 6px;
  border-radius: 10px;
  margin-top: 2px;
  display: inline-block;
  width: fit-content;
}

.tabs__item:hover {
  color: var(--color-text);
  background: var(--color-accent-light);
}

.tabs__item--active {
  background: var(--color-accent);
  color: var(--accent-primary-contrast, #000);
  box-shadow: var(--shadow-sm);
}

.tabs__item--active .tabs__time {
  background: rgba(0, 0, 0, 0.15);
}

body.white-theme .tabs__item--active .tabs__time {
  background: rgba(255, 255, 255, 0.25);
}

/* ========================================
   LOADING STATES
   ======================================== */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-bg) 25%,
    var(--color-border) 50%,
    var(--color-bg) 75%
  );
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s infinite;
  border-radius: var(--radius-sm);
}

@keyframes skeleton-loading {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

/* ========================================
   RESPONSIVE ADJUSTMENTS
   ======================================== */
@media (max-width: 768px) {
  h1, .h1 {
    font-size: 2.25rem;
  }
  
  h2, .h2 {
    font-size: 1.5rem;
  }
  
  h3, .h3 {
    font-size: 1.25rem;
  }
  
  .card {
    padding: var(--space-4);
  }
  
  .accordion-trigger {
    padding: var(--space-3) var(--space-4);
  }
  
  .accordion-panel {
    padding: var(--space-3) var(--space-4);
  }
  
  .metric-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .metric-grid {
    grid-template-columns: 1fr;
  }
  
  .tabs {
    flex-direction: column;
  }
}