/* ============================================================================
   CSS CUSTOM PROPERTIES (ROOT VARIABLES)
============================================================================ */

:root {
  /* ===== COLORS ===== */
  --color-background: rgba(252, 252, 249, 1);
  --color-surface: rgba(255, 255, 253, 1);
  --color-text: rgba(19, 52, 59, 1);
  --color-text-secondary: rgba(98, 108, 113, 1);
  --color-primary: rgba(33, 128, 141, 1);
  --color-primary-hover: rgba(29, 116, 128, 1);
  --color-primary-active: rgba(26, 104, 115, 1);
  --color-secondary: rgba(94, 82, 64, 0.12);
  --color-secondary-hover: rgba(94, 82, 64, 0.2);
  --color-secondary-active: rgba(94, 82, 64, 0.25);
  --color-border: rgba(94, 82, 64, 0.2);
  --color-btn-primary-text: rgba(252, 252, 249, 1);
  --color-card-border: rgba(94, 82, 64, 0.12);
  --color-card-border-inner: rgba(94, 82, 64, 0.12);
  --color-error: rgba(192, 21, 47, 1);
  --color-error-light: rgba(192, 21, 47, 0.1);
  --color-danger: rgba(192, 21, 47, 1);
  --color-success: rgba(33, 128, 141, 1);
  --color-success-light: rgba(33, 128, 141, 0.1);
  --color-warning: rgba(168, 75, 47, 1);
  --color-warning-light: rgba(168, 75, 47, 0.1);
  --color-info: rgba(98, 108, 113, 1);
  --color-info-light: rgba(98, 108, 113, 0.1);
  --color-primary-light: rgba(33, 128, 141, 0.1);
  --color-focus-ring: rgba(33, 128, 141, 0.4);
  --color-select-caret: rgba(19, 52, 59, 0.8);

  /* ===== RGB VERSIONS (For opacity control) ===== */
  --color-success-rgb: 33, 128, 141;
  --color-error-rgb: 192, 21, 47;
  --color-warning-rgb: 168, 75, 47;
  --color-info-rgb: 98, 108, 113;

  /* ===== COMMON STYLE PATTERNS ===== */
  --focus-ring: 0 0 0 3px var(--color-focus-ring);
  --focus-outline: 2px solid var(--color-primary);
  --status-bg-opacity: 0.15;
  --status-border-opacity: 0.25;
  --select-caret-light: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23134252' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  --select-caret-dark: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23f5f5f5' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");

  /* ===== TYPOGRAPHY ===== */
  --font-family-base: "FKGroteskNeue", "Geist", "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-family-mono: "Berkeley Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  --font-size-xs: 11px;
  --font-size-sm: 12px;
  --font-size-base: 14px;
  --font-size-md: 14px;
  --font-size-lg: 16px;
  --font-size-xl: 18px;
  --font-size-2xl: 20px;
  --font-size-3xl: 24px;
  --font-size-4xl: 30px;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 550;
  --font-weight-bold: 600;
  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --letter-spacing-tight: -0.01em;

  /* ===== SPACING ===== */
  --space-0: 0;
  --space-1: 1px;
  --space-2: 2px;
  --space-4: 4px;
  --space-6: 6px;
  --space-8: 8px;
  --space-10: 10px;
  --space-12: 12px;
  --space-16: 16px;
  --space-20: 20px;
  --space-24: 24px;
  --space-32: 32px;

  /* ===== BORDER RADIUS ===== */
  --radius-sm: 6px;
  --radius-base: 8px;
  --radius-md: 10px;
  --radius-lg: 12px;
  --radius-full: 9999px;

  /* ===== SHADOWS ===== */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.02);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.02);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.04), 0 2px 4px -1px rgba(0, 0, 0, 0.02);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.04), 0 4px 6px -2px rgba(0, 0, 0, 0.02);
  --shadow-inset-sm: inset 0 1px 0 rgba(255, 255, 255, 0.15), inset 0 -1px 0 rgba(0, 0, 0, 0.03);

  /* ===== ANIMATION ===== */
  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --ease-standard: cubic-bezier(0.16, 1, 0.3, 1);

  /* ===== LAYOUT ===== */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
}

/* ============================================================================
   RESIZEOBSERVER FIX
============================================================================ */

/* Fix för ResizeObserver-varningar */
.modal {
    contain: layout style paint;
}

/* Ytterligare ResizeObserver-fixar för dynamiska element */
.modal-content {
    contain: layout style paint;
}

.quiz-content {
    contain: layout style paint;
}

.question-container {
    contain: layout style paint;
}

.ai-generated-questions {
    contain: layout style paint;
}

.tab-content {
    contain: layout style paint;
}

/* ============================================================================
   DARK MODE SUPPORT
============================================================================ */

/* Auto Dark Mode (System Preference) */
@media (prefers-color-scheme: dark) {
  :root {
    --color-background: rgba(31, 33, 33, 1);
    --color-surface: rgba(38, 40, 40, 1);
    --color-text: rgba(245, 245, 245, 1);
    --color-text-secondary: rgba(167, 169, 169, 0.7);
    --color-primary: rgba(50, 184, 198, 1);
    --color-primary-hover: rgba(45, 166, 178, 1);
    --color-primary-active: rgba(41, 150, 161, 1);
    --color-secondary: rgba(119, 124, 124, 0.15);
    --color-secondary-hover: rgba(119, 124, 124, 0.25);
    --color-secondary-active: rgba(119, 124, 124, 0.3);
    --color-border: rgba(119, 124, 124, 0.3);
    --color-error: rgba(255, 84, 89, 1);
    --color-success: rgba(50, 184, 198, 1);
    --color-warning: rgba(230, 129, 97, 1);
    --color-info: rgba(167, 169, 169, 1);
    --color-focus-ring: rgba(50, 184, 198, 0.4);
    --color-btn-primary-text: rgba(19, 52, 59, 1);
    --color-card-border: rgba(119, 124, 124, 0.2);
    --color-card-border-inner: rgba(119, 124, 124, 0.15);
    --color-border-secondary: rgba(119, 124, 124, 0.2);
    --color-select-caret: rgba(245, 245, 245, 0.8);
    --shadow-inset-sm: inset 0 1px 0 rgba(255, 255, 255, 0.1), inset 0 -1px 0 rgba(0, 0, 0, 0.15);

    /* RGB versions for dark mode */
    --color-success-rgb: 50, 184, 198;
    --color-error-rgb: 255, 84, 89;
    --color-warning-rgb: 230, 129, 97;
    --color-info-rgb: 167, 169, 169;
  }
}

/* Manual Dark Mode (Data Attribute) */
[data-color-scheme="dark"] {
  --color-background: rgba(31, 33, 33, 1);
  --color-surface: rgba(38, 40, 40, 1);
  --color-text: rgba(245, 245, 245, 1);
  --color-text-secondary: rgba(167, 169, 169, 0.7);
  --color-primary: rgba(50, 184, 198, 1);
  --color-primary-hover: rgba(45, 166, 178, 1);
  --color-primary-active: rgba(41, 150, 161, 1);
  --color-secondary: rgba(119, 124, 124, 0.15);
  --color-secondary-hover: rgba(119, 124, 124, 0.25);
  --color-secondary-active: rgba(119, 124, 124, 0.3);
  --color-border: rgba(119, 124, 124, 0.3);
  --color-error: rgba(255, 84, 89, 1);
  --color-success: rgba(50, 184, 198, 1);
  --color-warning: rgba(230, 129, 97, 1);
  --color-info: rgba(167, 169, 169, 1);
  --color-focus-ring: rgba(50, 184, 198, 0.4);
  --color-btn-primary-text: rgba(19, 52, 59, 1);
  --color-card-border: rgba(119, 124, 124, 0.15);
  --color-card-border-inner: rgba(119, 124, 124, 0.15);
  --color-border-secondary: rgba(119, 124, 124, 0.2);
  --color-select-caret: rgba(245, 245, 245, 0.8);
  --shadow-inset-sm: inset 0 1px 0 rgba(255, 255, 255, 0.1), inset 0 -1px 0 rgba(0, 0, 0, 0.15);

  /* RGB versions for dark mode */
  --color-success-rgb: 50, 184, 198;
  --color-error-rgb: 255, 84, 89;
  --color-warning-rgb: 230, 129, 97;
  --color-info-rgb: 167, 169, 169;
}

/* Manual Light Mode (Data Attribute) */
[data-color-scheme="light"] {
  --color-background: rgba(252, 252, 249, 1);
  --color-surface: rgba(255, 255, 253, 1);
  --color-text: rgba(19, 52, 59, 1);
  --color-text-secondary: rgba(98, 108, 113, 1);
  --color-primary: rgba(33, 128, 141, 1);
  --color-primary-hover: rgba(29, 116, 128, 1);
  --color-primary-active: rgba(26, 104, 115, 1);
  --color-secondary: rgba(94, 82, 64, 0.12);
  --color-secondary-hover: rgba(94, 82, 64, 0.2);
  --color-secondary-active: rgba(94, 82, 64, 0.25);
  --color-border: rgba(94, 82, 64, 0.2);
  --color-btn-primary-text: rgba(252, 252, 249, 1);
  --color-card-border: rgba(94, 82, 64, 0.12);
  --color-card-border-inner: rgba(94, 82, 64, 0.12);
  --color-error: rgba(192, 21, 47, 1);
  --color-success: rgba(33, 128, 141, 1);
  --color-warning: rgba(168, 75, 47, 1);
  --color-info: rgba(98, 108, 113, 1);
  --color-focus-ring: rgba(33, 128, 141, 0.4);

  /* RGB versions for light mode */
  --color-success-rgb: 33, 128, 141;
  --color-error-rgb: 192, 21, 47;
  --color-warning-rgb: 168, 75, 47;
  --color-info-rgb: 98, 108, 113;
}

/* ============================================================================
   BASE STYLES AND RESET
============================================================================ */

html {
  font-size: var(--font-size-base);
  font-family: var(--font-family-base);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
}

*,
*::before,
*::after {
  box-sizing: inherit;
}

/* ============================================================================
   TYPOGRAPHY
============================================================================ */

h1, h2, h3, h4, h5, h6 {
  margin: 0;
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-tight);
  color: var(--color-text);
  letter-spacing: var(--letter-spacing-tight);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-md); }

p {
  margin: 0 0 var(--space-16) 0;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-standard);
}

a:hover {
  color: var(--color-primary-hover);
}

/* Code Elements */
code, pre {
  font-family: var(--font-family-mono);
  font-size: calc(var(--font-size-base) * 0.95);
  background-color: var(--color-secondary);
  border-radius: var(--radius-sm);
}

code {
  padding: var(--space-1) var(--space-4);
}

pre {
  padding: var(--space-16);
  margin: var(--space-16) 0;
  overflow: auto;
  border: 1px solid var(--color-border);
}

pre code {
  background: none;
  padding: 0;
}

/* ============================================================================
   BUTTONS
============================================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-8) var(--space-16);
  border-radius: var(--radius-base);
  font-size: var(--font-size-base);
  font-weight: 500;
  line-height: 1.5;
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-standard);
  border: none;
  text-decoration: none;
  position: relative;
}

.btn:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

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

/* Button Variants */
.btn--primary {
  background: var(--color-primary);
  color: var(--color-btn-primary-text);
}

.btn--primary:hover {
  background: var(--color-primary-hover);
}

.btn--primary:active {
  background: var(--color-primary-active);
}

.btn--secondary {
  background: var(--color-secondary);
  color: var(--color-text);
}

.btn--secondary:hover {
  background: var(--color-secondary-hover);
}

.btn--secondary:active {
  background: var(--color-secondary-active);
}

.btn--outline {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text);
}

.btn--outline:hover {
  background: var(--color-secondary);
}

.btn--danger {
  background: var(--color-danger);
  color: white;
}

.btn--danger:hover {
  background: #d32f2f;
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(211, 47, 47, 0.3);
}

.btn--danger:active {
  transform: translateY(0);
  box-shadow: 0 2px 4px rgba(211, 47, 47, 0.3);
}

/* Dark mode outline button fix */
[data-color-scheme="dark"] .btn--outline {
  border: 1px solid var(--color-border-secondary);
}

/* Button Sizes */
.btn--sm {
  padding: var(--space-4) var(--space-12);
  font-size: var(--font-size-sm);
  border-radius: var(--radius-sm);
}

.btn--lg {
  padding: var(--space-10) var(--space-20);
  font-size: var(--font-size-lg);
  border-radius: var(--radius-md);
}

.btn--full-width {
  width: 100%;
}

/* ============================================================================
   FORM ELEMENTS
============================================================================ */

.form-control {
  display: block;
  width: 100%;
  padding: var(--space-8) var(--space-12);
  font-size: var(--font-size-md);
  line-height: 1.5;
  color: var(--color-text);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  transition: border-color var(--duration-fast) var(--ease-standard),
              box-shadow var(--duration-fast) var(--ease-standard);
}

.form-control:focus {
  border-color: var(--color-primary);
  outline: var(--focus-outline);
}

/* Textarea Specific */
textarea.form-control {
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
}

/* Select Dropdown */
select.form-control {
  padding: var(--space-8) var(--space-12);
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background-image: var(--select-caret-light);
  background-repeat: no-repeat;
  background-position: right var(--space-12) center;
  background-size: 16px;
  padding-right: var(--space-32);
}

/* Select caret for dark mode */
@media (prefers-color-scheme: dark) {
  select.form-control {
    background-image: var(--select-caret-dark);
  }
}

[data-color-scheme="dark"] select.form-control {
  background-image: var(--select-caret-dark);
}

[data-color-scheme="light"] select.form-control {
  background-image: var(--select-caret-light);
}

/* Form Labels and Groups */
.form-label {
  display: block;
  margin-bottom: var(--space-8);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-sm);
}

.form-group {
  margin-bottom: var(--space-16);
}

/* ============================================================================
   CARD COMPONENT
============================================================================ */

.card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-card-border);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: box-shadow var(--duration-normal) var(--ease-standard);
}

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

.card__body {
  padding: var(--space-16);
}

.card__header,
.card__footer {
  padding: var(--space-16);
  border-bottom: 1px solid var(--color-card-border-inner);
}

/* ============================================================================
   STATUS INDICATORS
============================================================================ */

.status {
  display: inline-flex;
  align-items: center;
  padding: var(--space-6) var(--space-12);
  border-radius: var(--radius-full);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-sm);
}

.status--success {
  background-color: rgba(var(--color-success-rgb, 33, 128, 141), var(--status-bg-opacity));
  color: var(--color-success);
  border: 1px solid rgba(var(--color-success-rgb, 33, 128, 141), var(--status-border-opacity));
}

.status--error {
  background-color: rgba(var(--color-error-rgb, 192, 21, 47), var(--status-bg-opacity));
  color: var(--color-error);
  border: 1px solid rgba(var(--color-error-rgb, 192, 21, 47), var(--status-border-opacity));
}

.status--warning {
  background-color: rgba(var(--color-warning-rgb, 168, 75, 47), var(--status-bg-opacity));
  color: var(--color-warning);
  border: 1px solid rgba(var(--color-warning-rgb, 168, 75, 47), var(--status-border-opacity));
}

.status--info {
  background-color: rgba(var(--color-info-rgb, 98, 108, 113), var(--status-bg-opacity));
  color: var(--color-info);
  border: 1px solid rgba(var(--color-info-rgb, 98, 108, 113), var(--status-border-opacity));
}

/* ============================================================================
   LAYOUT AND CONTAINERS
============================================================================ */

.container {
  width: 100%;
  margin-right: auto;
  margin-left: auto;
  padding-right: var(--space-16);
  padding-left: var(--space-16);
}

@media (min-width: 640px) {
  .container { max-width: var(--container-sm); }
}
@media (min-width: 768px) {
  .container { max-width: var(--container-md); }
}
@media (min-width: 1024px) {
  .container { max-width: var(--container-lg); }
}
@media (min-width: 1280px) {
  .container { max-width: var(--container-xl); }
}

/* ============================================================================
   UTILITY CLASSES
============================================================================ */

/* Display */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.block { display: block; }
.hidden { display: none !important; }

/* Alignment */
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }

/* Spacing */
.gap-4 { gap: var(--space-4); }
.gap-8 { gap: var(--space-8); }
.gap-16 { gap: var(--space-16); }

.m-0 { margin: 0; }
.mt-8 { margin-top: var(--space-8); }
.mb-8 { margin-bottom: var(--space-8); }
.mx-8 { margin-left: var(--space-8); margin-right: var(--space-8); }
.my-8 { margin-top: var(--space-8); margin-bottom: var(--space-8); }

.p-0 { padding: 0; }
.py-8 { padding-top: var(--space-8); padding-bottom: var(--space-8); }
.px-8 { padding-left: var(--space-8); padding-right: var(--space-8); }
.py-16 { padding-top: var(--space-16); padding-bottom: var(--space-16); }
.px-16 { padding-left: var(--space-16); padding-right: var(--space-16); }

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

:focus-visible {
  outline: var(--focus-outline);
  outline-offset: 2px;
}

/* ============================================================================
   HEADER COMPONENT
============================================================================ */

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-20) 0;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-32);
}

.header h1 {
  color: var(--color-primary);
  font-size: var(--font-size-3xl);
  margin: 0;
}

.header-actions {
  display: flex;
  gap: var(--space-12);
}

/* ============================================================================
   LANDING PAGE
============================================================================ */

.landing-page {
  text-align: center;
  padding: var(--space-32) 0;
}

.landing-content h2 {
  margin-bottom: var(--space-16);
  color: var(--color-text);
}

.landing-content p {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-32);
}

.quiz-modes {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-24);
  max-width: 800px;
  margin: 0 auto;
}

.mode-card {
  text-align: center;
  transition: transform var(--duration-normal) var(--ease-standard);
}

.mode-card:hover {
  transform: translateY(-4px);
}

.mode-card h3 {
  color: var(--color-primary);
  margin-bottom: var(--space-12);
}

.mode-card p {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-20);
}

/* ============================================================================
   CHAPTER SELECTION
============================================================================ */

.chapter-selection {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--space-32) 0;
}

.chapter-selection-content {
  text-align: center;
}

.chapter-selection-content h2 {
  margin-bottom: var(--space-16);
  color: var(--color-text);
}

.chapter-selection-content p {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-32);
}

.chapter-options {
  display: grid;
  gap: var(--space-16);
  margin-bottom: var(--space-24);
}

.chapter-option {
  position: relative;
}

.chapter-option input[type="radio"] {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.chapter-label {
  display: block;
  padding: var(--space-16);
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-standard);
}

.chapter-label:hover {
  border-color: var(--color-primary);
  background: var(--color-secondary);
}

.chapter-option input[type="radio"]:checked + .chapter-label {
  border-color: var(--color-primary);
  background: rgba(var(--color-success-rgb), 0.1);
}

.chapter-info h3 {
  color: var(--color-primary);
  margin-bottom: var(--space-8);
}

.chapter-info p {
  color: var(--color-text-secondary);
  margin: 0;
}

/* Chapter Checkboxes */
.chapter-checkboxes {
  display: grid;
  gap: var(--space-12);
  margin-bottom: var(--space-24);
  padding: var(--space-16);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.chapter-checkbox {
  display: flex;
  align-items: center;
  gap: var(--space-12);
  padding: var(--space-12);
  background: var(--color-background);
  border-radius: var(--radius-base);
}

.chapter-checkbox input[type="checkbox"] {
  margin: 0;
}

.chapter-checkbox-label {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  cursor: pointer;
  flex: 1;
}

.chapter-color {
  width: 16px;
  height: 16px;
  border-radius: var(--radius-sm);
}

.chapter-checkbox-info {
  flex: 1;
}

.chapter-checkbox-info h4 {
  margin: 0;
  font-size: var(--font-size-base);
  color: var(--color-text);
}

.chapter-checkbox-info p {
  margin: 0;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.chapter-question-count {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-medium);
}

.chapter-selection-actions {
  display: flex;
  justify-content: center;
  gap: var(--space-16);
}

/* ============================================================================
   ADMIN SECTION
============================================================================ */

.admin-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-32) 0;
}

/* Admin Tabs */
.admin-tabs {
  display: flex;
  gap: var(--space-2);
  margin-bottom: var(--space-32);
  border-bottom: 1px solid var(--color-border);
}

.tab-btn {
  padding: var(--space-12) var(--space-20);
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  transition: all var(--duration-fast) var(--ease-standard);
}

.tab-btn:hover {
  color: var(--color-primary);
}

.tab-btn.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

.tab-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-24);
}

.tab-header h3 {
  margin: 0;
  color: var(--color-text);
}

.tab-header-actions {
  display: flex;
  gap: var(--space-12);
  align-items: center;
}

/* ============================================================================
   AI GENERATION
============================================================================ */

.ai-generation-controls {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-16);
  margin-bottom: var(--space-24);
  padding: var(--space-16);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.ai-generated-questions {
  margin-top: var(--space-24);
}

.ai-generated-questions h4 {
  margin-bottom: var(--space-16);
  color: var(--color-text);
}

.ai-question-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-16);
  margin-bottom: var(--space-12);
  position: relative;
}

.ai-question-item.generating {
  opacity: 0.7;
  pointer-events: none;
}

.ai-question-item.generating::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 24px;
  height: 24px;
  border: 2px solid var(--color-primary);
  border-top: 2px solid transparent;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

.ai-question-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-12);
}

.ai-question-meta {
  display: flex;
  gap: var(--space-12);
  align-items: center;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.ai-question-difficulty {
  padding: var(--space-2) var(--space-6);
  background: var(--color-secondary);
  border-radius: var(--radius-sm);
  font-weight: var(--font-weight-medium);
}

.ai-question-difficulty.easy { background: var(--color-success); color: white; }
.ai-question-difficulty.medium { background: var(--color-warning); color: white; }
.ai-question-difficulty.hard { background: var(--color-error); color: white; }

.ai-question-actions {
  display: flex;
  gap: var(--space-8);
}

.ai-question-text {
  margin-bottom: var(--space-12);
  font-weight: var(--font-weight-medium);
}

.ai-question-options {
  display: grid;
  gap: var(--space-8);
  margin-bottom: var(--space-12);
}

.ai-question-option {
  padding: var(--space-8) var(--space-12);
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.ai-question-option.correct {
  background: var(--color-success);
  color: white;
  border-color: var(--color-success);
}

.ai-question-option-letter {
  font-weight: var(--font-weight-bold);
  min-width: 20px;
}

.ai-question-explanation {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  font-style: italic;
  margin-top: var(--space-8);
  padding: var(--space-8);
  background: var(--color-background);
  border-radius: var(--radius-md);
}

/* AI Modal specific styles */
#ai-question-modal .option-group {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  margin-bottom: var(--space-8);
}

#ai-question-modal .option-label {
  font-weight: var(--font-weight-medium);
  min-width: 30px;
}

#ai-question-modal .option-input {
  flex: 1;
}

/* ============================================================================
   AI COSTS STYLES
============================================================================ */

.ai-costs-summary {
  margin-bottom: var(--space-24);
}

.cost-summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-16);
  margin-bottom: var(--space-24);
}

.cost-summary-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-20);
  text-align: center;
  transition: all 0.2s ease;
}

.cost-summary-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.cost-summary-item h4 {
  margin-bottom: var(--space-8);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.cost-amount {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
}

.ai-costs-chart {
  margin-bottom: var(--space-24);
}

.chart-container {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-20);
  min-height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-secondary);
}

.ai-costs-details h4 {
  margin-bottom: var(--space-16);
  color: var(--color-text);
}

.costs-filters {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--space-16);
  margin-bottom: var(--space-24);
  padding: var(--space-16);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  align-items: end;
}

.costs-list {
  display: grid;
  gap: var(--space-12);
}

.cost-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-16);
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: all 0.2s ease;
}

.cost-item:hover {
  background: var(--color-background);
  border-color: var(--color-primary);
}

.cost-item-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.cost-item-amount {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
}

.cost-item-details {
  display: flex;
  gap: var(--space-12);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.cost-item-provider {
  padding: var(--space-2) var(--space-6);
  background: var(--color-secondary);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.cost-item-timestamp {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

/* ============================================================================
   QUESTIONS LIST
============================================================================ */

.questions-list {
  display: grid;
  gap: var(--space-16);
}

.question-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-16);
}

.question-item-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-12);
}

.question-meta {
  display: flex;
  gap: var(--space-16);
  align-items: center;
}

.question-id {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-medium);
}

.question-type {
  padding: var(--space-4) var(--space-8);
  background: var(--color-secondary);
  color: var(--color-text);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
}

.question-chapter {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.question-chapter-color {
  width: 12px;
  height: 12px;
  border-radius: var(--radius-sm);
}

.question-actions {
  display: flex;
  gap: var(--space-8);
}

.question-text {
  color: var(--color-text);
  margin-bottom: var(--space-12);
}

.question-options {
  display: grid;
  gap: var(--space-8);
}

.option-item {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  padding: var(--space-8);
  background: var(--color-background);
  border-radius: var(--radius-base);
  color: var(--color-text) !important;
}

.option-item.correct {
  background: rgba(var(--color-success-rgb), 0.1);
  border-left: 3px solid var(--color-success);
}

.option-letter {
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
}

/* ============================================================================
   CHAPTERS LIST
============================================================================ */

.chapters-list {
  display: grid;
  gap: var(--space-16);
}

.chapter-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-16);
}

.chapter-item-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-12);
}

.chapter-item-info {
  display: flex;
  align-items: center;
  gap: var(--space-12);
}

.chapter-item-color {
  width: 24px;
  height: 24px;
  border-radius: var(--radius-sm);
}

.chapter-item-details h4 {
  margin: 0 0 var(--space-4) 0;
  color: var(--color-text);
}

.chapter-item-details p {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

.chapter-item-stats {
  display: flex;
  gap: var(--space-16);
}

.chapter-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
}

.chapter-stat-value {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
}

.chapter-stat span:last-child {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

/* Chapter Sub-items */
.chapter-subitem {
  margin-left: 32px;
  margin-top: 12px;
  background: var(--color-secondary);
}

/* ============================================================================
   STATISTICS
============================================================================ */

.statistics-content {
  display: grid;
  gap: var(--space-24);
}

.statistics-header {
  display: flex;
  flex-direction: column;
  gap: var(--space-20);
}

.statistics-actions {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  padding: var(--space-16);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.statistics-actions .btn {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  font-weight: var(--font-weight-medium);
}

.statistics-actions .btn-icon {
  font-size: var(--font-size-lg);
}

.stat-section h4 {
  margin-bottom: var(--space-16);
  color: var(--color-text);
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-16);
}

.stat-item {
  text-align: center;
  padding: var(--space-20);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.stat-value {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  margin-bottom: var(--space-8);
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Detaljerad statistik */
.statistics-sections {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: var(--space-24);
  margin-top: var(--space-24);
}

.statistics-section {
  background: var(--color-surface);
  padding: var(--space-20);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.statistics-section h4 {
  margin: 0 0 var(--space-16) 0;
  color: var(--color-text);
  font-size: var(--font-size-lg);
  border-bottom: 2px solid var(--color-border);
  padding-bottom: var(--space-8);
}

.question-stats-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-12);
}

.question-stat-item {
  padding: var(--space-12);
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all 0.2s ease;
}

.question-stat-item.clickable {
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.question-stat-item.clickable:hover {
  background: var(--color-primary-light);
  border-color: var(--color-primary);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.question-stat-item.clickable::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-primary);
  transform: scaleX(0);
  transition: transform 0.2s ease;
}

.question-stat-item.clickable:hover::before {
  transform: scaleX(1);
}

.question-stat-text {
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--space-8);
  color: var(--color-text);
  line-height: 1.4;
}

.question-stat-details {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-8);
  align-items: center;
}

.stat-badge {
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stat-badge--hard {
  background: var(--color-error-light);
  color: var(--color-error);
  border: 1px solid var(--color-error);
}

.stat-badge--easy {
  background: var(--color-success-light);
  color: var(--color-success);
  border: 1px solid var(--color-success);
}

.stat-badge--slow {
  background: var(--color-warning-light);
  color: var(--color-warning);
  border: 1px solid var(--color-warning);
}

.stat-badge--fast {
  background: var(--color-info-light);
  color: var(--color-info);
  border: 1px solid var(--color-info);
}

.stat-badge--incorrect {
  background: #ffebee;
  color: #d32f2f;
  border: 1px solid #d32f2f;
}

.stat-badge--edit {
  background: var(--color-primary-light);
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
  font-style: italic;
}

/* ============================================================================
   RESULTS LIST
============================================================================ */

.results-list {
  display: grid;
  gap: var(--space-16);
}

.result-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-16);
}

.result-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.result-header h4 {
  margin: 0;
  color: var(--color-text);
}

.result-score {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
}

.result-grade {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

/* ============================================================================
   QUIZ SECTION
============================================================================ */

.quiz-section {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--space-32) 0;
}

/* Quiz Header */
.quiz-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-32);
  padding: var(--space-20);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.quiz-info h2 {
  margin: 0 0 var(--space-8) 0;
  color: var(--color-text);
}

.quiz-progress {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

.progress-bar {
  width: 200px;
  height: 8px;
  background: var(--color-secondary);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--color-primary);
  transition: width var(--duration-normal) var(--ease-standard);
}

/* Timer */
.timer {
  text-align: center;
  padding: var(--space-12);
  background: var(--color-secondary);
  border-radius: var(--radius-lg);
}

.timer-text {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
}

/* Quiz Content */
.quiz-content {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-24);
}

.quiz-hint {
  margin-top: var(--space-16);
  margin-bottom: var(--space-8);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

/* Tona ned hint i mörkt läge (auto och manuellt) */
@media (prefers-color-scheme: dark) {
  .quiz-hint {
    color: rgba(167, 169, 169, 0.6);
  }
}

[data-color-scheme="dark"] .quiz-hint {
  color: rgba(167, 169, 169, 0.6);
}

@media (max-width: 420px) {
  .quiz-hint {
    font-size: 12px;
  }
}

.question-container {
  margin-bottom: var(--space-32);
}

.question-header {
  margin-bottom: var(--space-24);
}

.question-chapter-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-8);
  padding: var(--space-6) var(--space-12);
  background: var(--color-secondary);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  color: var(--color-text);
  margin-bottom: var(--space-16);
}

.question-chapter-badge-color {
  width: 12px;
  height: 12px;
  border-radius: var(--radius-sm);
}

.question-title {
  color: var(--color-text);
  margin-bottom: var(--space-16);
  line-height: var(--line-height-normal);
}

.question-image {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-base);
  margin-bottom: var(--space-16);
}

/* Quiz Options */
.option-button {
  display: flex;
  align-items: center;
  gap: var(--space-12);
  padding: var(--space-16);
  background: var(--color-background);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-base);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-standard);
  text-align: left;
  color: var(--color-text) !important;
  font-size: 1.08em;
  font-weight: 500;
}

.option-button:hover {
  border-color: var(--color-primary);
  background: var(--color-secondary);
}

.option-button.selected {
  border-color: var(--color-primary);
  background: rgba(var(--color-success-rgb), 0.1);
}

.option-button.correct {
  border-color: var(--color-success);
  background: rgba(var(--color-success-rgb), 0.15);
}

.option-button.incorrect {
  border-color: var(--color-error);
  background: rgba(var(--color-error-rgb), 0.15);
}

.option-letter {
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  min-width: 24px;
}

/* Text Answer */
.text-answer-container {
  display: flex;
  flex-direction: column;
  gap: var(--space-16);
}

.text-answer-input {
  width: 100%;
  min-height: 100px;
  padding: var(--space-12);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-base);
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  resize: vertical;
  transition: border-color var(--duration-fast) var(--ease-standard);
}

.text-answer-input:focus {
  border-color: var(--color-primary);
  outline: none;
}

.confirm-answer-btn {
  align-self: flex-start;
  opacity: 0;
  visibility: hidden;
  transition: all var(--duration-fast) var(--ease-standard);
}

.confirm-answer-btn.show {
  opacity: 1;
  visibility: visible;
}

.text-answer.hidden {
  display: none;
}

/* Quiz Actions */
.quiz-actions {
  display: flex;
  justify-content: space-between;
  gap: var(--space-16);
}

.quiz-actions button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ============================================================================
   FEEDBACK
============================================================================ */

.feedback {
  margin-top: var(--space-20);
  padding: var(--space-16);
  border-radius: var(--radius-base);
  border-left: 4px solid;
}

.feedback.correct {
  background: rgba(var(--color-success-rgb), 0.1);
  border-left-color: var(--color-success);
}

.feedback.incorrect {
  background: rgba(var(--color-error-rgb), 0.1);
  border-left-color: var(--color-error);
}

.feedback-title {
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-8);
  color: var(--color-text);
}

.feedback p {
  margin: 0 0 var(--space-8) 0;
  color: var(--color-text);
}

.feedback p:last-child {
  margin-bottom: 0;
}

/* ============================================================================
   RESULTS SECTION
============================================================================ */

.results-section {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--space-32) 0;
  text-align: center;
}

.results-header h2 {
  margin-bottom: var(--space-32);
  color: var(--color-text);
}

.results-content {
  margin-bottom: var(--space-32);
}

.results-summary {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-16);
  padding: var(--space-32);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.final-score {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
}

.final-grade {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
}

.results-actions {
  display: flex;
  justify-content: center;
  gap: var(--space-16);
}

/* ============================================================================
   MODALS
============================================================================ */

.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  contain: layout style paint;
}

.modal-content {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  max-width: 500px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-20);
  border-bottom: 1px solid var(--color-border);
}

.modal-header h3 {
  margin: 0;
  color: var(--color-text);
}

.modal-body {
  padding: var(--space-20);
}

.modal-actions {
  display: flex;
  gap: var(--space-12);
  justify-content: flex-end;
  margin-top: var(--space-20);
}

/* MCQ Options in Modal */
.mcq-options {
  margin-bottom: var(--space-16);
}

.options-container {
  display: grid;
  gap: var(--space-12);
}

.option-group {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.option-label {
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  min-width: 20px;
}

.option-input {
  flex: 1;
}

/* ============================================================================
   PAGINATION
============================================================================ */

.pagination-container {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 4px;
  margin-top: 24px;
  margin-bottom: 24px;
}

.pagination-btn {
  background: var(--color-surface);
  color: var(--color-primary);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-base);
  padding: 6px 14px;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  min-width: 38px;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-standard);
  box-shadow: none;
  margin: 0 2px;
}

.pagination-btn:hover,
.pagination-btn:focus-visible {
  background: var(--color-secondary);
  border-color: var(--color-primary);
  color: var(--color-primary-hover);
}

.pagination-btn.active,
.pagination-btn[aria-current="page"] {
  background: var(--color-primary);
  color: var(--color-btn-primary-text);
  border-color: var(--color-primary);
  cursor: default;
  pointer-events: none;
}

.pagination-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  background: var(--color-secondary);
}

/* ============================================================================
   TOAST NOTIFICATIONS
============================================================================ */

.toast-container {
  position: fixed;
  top: var(--space-20);
  right: var(--space-20);
  z-index: 1100;
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

.toast {
  padding: var(--space-12) var(--space-16);
  border-radius: var(--radius-base);
  color: white;
  font-weight: var(--font-weight-medium);
  min-width: 200px;
  opacity: 0;
  transform: translateX(100%);
  animation: slideIn 0.3s ease-out forwards, slideOut 0.3s ease-out 3.7s forwards;
}

.toast.success { background: var(--color-success); }
.toast.error { background: var(--color-error); }
.toast.warning { background: var(--color-warning); }
.toast.info { background: var(--color-info); }

@keyframes slideIn {
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideOut {
  to {
    opacity: 0;
    transform: translateX(100%);
  }
}

/* ============================================================================
   QUIZ SITE LOGIN
============================================================================ */

#quiz-site-login {
  background: rgba(33, 128, 141, 0.18);
  backdrop-filter: blur(3px);
}

#quiz-site-login-form {
  border: 1.5px solid var(--color-card-border, #ececec);
  box-shadow: 0 6px 38px 0 rgba(33,128,141,0.08);
}

#quiz-site-login input:focus {
  border-color: var(--color-primary);
  outline: 2px solid var(--color-primary);
}

/* Loading Spinner */
@keyframes spin { 
  100% { transform: rotate(360deg); } 
}

/* Question Count Inputs */
#fake-practice-question-count,
#practice-question-count {
  max-width: 400px;
  width: 100%;
  margin-left: auto;
  margin-right: auto;
  display: block;
}

/* ============================================================================
   FONT LOADING
============================================================================ */

@font-face {
  font-family: 'FKGroteskNeue';
  src: url('https://r2cdn.perplexity.ai/fonts/FKGroteskNeue.woff2') format('woff2');
}

/* ============================================================================
   RESPONSIVE DESIGN
============================================================================ */

/* Tablet and Mobile */
@media (max-width: 768px) {
  .container {
    padding: 0 var(--space-12);
  }
  
  .header {
    flex-direction: column;
    gap: var(--space-16);
    text-align: center;
  }
  
  .quiz-modes {
    grid-template-columns: 1fr;
  }
  
  .quiz-header {
    flex-direction: column;
    gap: var(--space-16);
  }
  
  .quiz-actions {
    flex-direction: column;
  }
  
  .results-actions {
    flex-direction: column;
  }
  
  .modal-content {
    width: 95%;
  }
  
  .tab-header {
    flex-direction: column;
    gap: var(--space-16);
  }
  
  .tab-header-actions {
    flex-direction: column;
    width: 100%;
  }
  
  .admin-tabs {
    flex-wrap: wrap;
  }
  
  .question-item-header {
    flex-direction: column;
    gap: var(--space-12);
    align-items: flex-start;
  }
  
  .chapter-item-header {
    flex-direction: column;
    gap: var(--space-12);
    align-items: flex-start;
  }
  
  .result-header {
    flex-direction: column;
    gap: var(--space-12);
    align-items: flex-start;
  }
  
  .toast-container {
    left: var(--space-12);
    right: var(--space-12);
  }
  
  .toast {
    min-width: auto;
  }
  
  .pagination-container {
    gap: 2px;
  }
  
  .pagination-btn {
    min-width: 25px;
    font-size: var(--font-size-sm);
    padding: 4px 10px;
  }
  
  #quiz-site-login-form {
    padding: 30px 10px 20px 10px;
  }
}

/* Mobile Only */
@media (max-width: 480px) {
  .option-group {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-4);
  }
  
  .chapter-selection-actions {
    flex-direction: column;
  }
  
  .modal-actions {
    flex-direction: column;
  }
  
  .stat-grid {
    grid-template-columns: 1fr;
  }

  /* =============================================================================
   STEG 7: LÄGG TILL DESSA CSS-STILAR I style.css
   Lägg till dessa LÄNGST NER i din style.css fil, precis innan avslutande }
============================================================================= */

/* ============================================================================
   SETTINGS FORM FÖRBÄTTRINGAR
============================================================================ */

.settings-form {
  max-width: 600px;
  display: flex;
  flex-direction: column;
  gap: var(--space-32);
}

.settings-section {
  padding: var(--space-20);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.settings-section h4 {
  margin: 0 0 var(--space-16) 0;
  color: var(--color-primary);
  font-size: var(--font-size-lg);
  border-bottom: 1px solid var(--color-border);
  padding-bottom: var(--space-8);
}

/* ============================================================================
   BETYGSGRÄNSER
============================================================================ */

.grade-thresholds {
  display: grid;
  gap: var(--space-12);
  margin-top: var(--space-16);
  padding: var(--space-16);
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
}

.grade-threshold-item {
  display: flex;
  align-items: center;
  gap: var(--space-12);
}

.grade-threshold-item .form-label {
  min-width: 150px;
  margin-bottom: 0;
  font-weight: var(--font-weight-medium);
}

.grade-threshold-item .form-control {
  max-width: 100px;
}

/* ============================================================================
   INAKTIVERAT TENTAMENLÄGE
============================================================================ */

.mode-card.disabled {
  position: relative;
  transition: all var(--duration-normal) var(--ease-standard);
}

.mode-card.disabled::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-background);
  opacity: 0.7;
  border-radius: var(--radius-lg);
  z-index: 1;
}

.mode-card.disabled .card__body {
  position: relative;
  z-index: 2;
}

.mode-card.disabled h3 {
  color: var(--color-text-secondary);
}

.mode-card.disabled p {
  color: var(--color-text-secondary);
}

.mode-card.disabled button {
  background: var(--color-secondary);
  color: var(--color-text-secondary);
  cursor: not-allowed;
  border: 1px solid var(--color-border);
}

/* Responsiv design för inställningar */
@media (max-width: 768px) {
  .grade-threshold-item {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-6);
  }
  
  .grade-threshold-item .form-label {
    min-width: auto;
  }
  
  .grade-threshold-item .form-control {
    max-width: 100%;
    width: 100%;
  }
}
}

/* ============================================================================
   UTVÄRDERINGSFORMULÄR
============================================================================ */

.evaluation-section {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--space-32) var(--space-16);
}

.evaluation-container {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-32);
  box-shadow: var(--shadow-md);
}

.evaluation-header {
  text-align: center;
  margin-bottom: var(--space-32);
}

.evaluation-header h2 {
  color: var(--color-primary);
  margin-bottom: var(--space-12);
}

.evaluation-header p {
  color: var(--color-text-secondary);
  font-size: var(--font-size-lg);
}

.evaluation-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-32);
}

.evaluation-section-block {
  padding: var(--space-24);
  background: var(--color-background);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.evaluation-section-block h3 {
  color: var(--color-primary);
  margin-bottom: var(--space-20);
  font-size: var(--font-size-xl);
  border-bottom: 2px solid var(--color-border);
  padding-bottom: var(--space-12);
}

/* Rating Groups */
.rating-group {
  margin-bottom: var(--space-24);
  padding: var(--space-16);
  background: var(--color-surface);
  border-radius: var(--radius-base);
  border: 1px solid var(--color-border);
}

.rating-group label {
  display: block;
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--space-12);
  color: var(--color-text);
  font-size: var(--font-size-md);
}

.rating-buttons {
  display: flex;
  gap: var(--space-8);
  margin-bottom: var(--space-12);
}

.rating-btn {
  width: 48px;
  height: 48px;
  border: 2px solid var(--color-border);
  background: var(--color-surface);
  border-radius: var(--radius-base);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-standard);
  color: var(--color-text);
}

.rating-btn:hover {
  background: var(--color-secondary);
  border-color: var(--color-primary);
  transform: scale(1.1);
}

.rating-btn.selected {
  background: var(--color-primary);
  color: var(--color-btn-primary-text);
  border-color: var(--color-primary);
  transform: scale(1.15);
}

.rating-btn.selected-1,
.rating-btn.selected-2 {
  background: var(--color-error);
  border-color: var(--color-error);
}

.rating-btn.selected-3 {
  background: var(--color-warning);
  border-color: var(--color-warning);
}

.rating-btn.selected-4,
.rating-btn.selected-5 {
  background: var(--color-success);
  border-color: var(--color-success);
}

.feedback-text {
  margin-top: var(--space-8);
  font-size: var(--font-size-sm);
}

.evaluation-actions {
  display: flex;
  justify-content: center;
  gap: var(--space-16);
  margin-top: var(--space-24);
}

/* ============================================================================
   UTVÄRDERINGAR I ADMIN
============================================================================ */


.evaluations-summary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-16);
  margin-bottom: var(--space-32);
}

.evaluation-stat-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-20);
  text-align: center;
}

.evaluation-stat-value {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  margin-bottom: var(--space-8);
}

.evaluation-stat-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.evaluations-list {
  display: grid;
  gap: var(--space-20);
}

.evaluation-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-24);
  transition: box-shadow var(--duration-normal) var(--ease-standard);
}

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

.evaluation-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--space-20);
  padding-bottom: var(--space-16);
  border-bottom: 1px solid var(--color-border);
}

.evaluation-card-info h4 {
  color: var(--color-text);
  margin: 0 0 var(--space-8) 0;
}

.evaluation-card-meta {
  display: flex;
  gap: var(--space-16);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

.evaluation-card-date {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.evaluation-ratings {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--space-12);
  margin-bottom: var(--space-20);
  padding: var(--space-16);
  background: var(--color-background);
  border-radius: var(--radius-base);
}

.evaluation-rating-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.evaluation-rating-value {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
}

.evaluation-rating-label {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  margin-top: var(--space-4);
}

.evaluation-feedback {
  display: grid;
  gap: var(--space-16);
}

.evaluation-feedback-item {
  padding: var(--space-12);
  background: var(--color-background);
  border-left: 3px solid var(--color-primary);
  border-radius: var(--radius-base);
}

.evaluation-feedback-item strong {
  display: block;
  color: var(--color-primary);
  margin-bottom: var(--space-8);
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.evaluation-feedback-item p {
  margin: 0;
  color: var(--color-text);
  line-height: 1.6;
}

.evaluation-recommend {
  display: inline-flex;
  align-items: center;
  gap: var(--space-8);
  padding: var(--space-8) var(--space-16);
  background: rgba(var(--color-success-rgb), 0.1);
  color: var(--color-success);
  border-radius: var(--radius-full);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-sm);
}

.evaluation-recommend.no {
  background: rgba(var(--color-error-rgb), 0.1);
  color: var(--color-error);
}

/* Responsiv design */
@media (max-width: 768px) {
  .evaluation-container {
    padding: var(--space-20);
  }
  
  .rating-buttons {
    justify-content: space-between;
  }
  
  .rating-btn {
    width: 42px;
    height: 42px;
    font-size: var(--font-size-base);
  }
  
  .evaluation-actions {
    flex-direction: column;
  }
  
  .evaluation-card-header {
    flex-direction: column;
    gap: var(--space-12);
  }
  
  .evaluation-ratings {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Star rating display (för visning i admin) */
.star-rating {
  display: inline-flex;
  gap: var(--space-2);
  color: #ffc107;
  font-size: var(--font-size-lg);
}

.star-rating .star {
  position: relative;
}

.star-rating .star.filled::before {
  content: "★";
}

.star-rating .star.empty::before {
  content: "☆";
  opacity: 0.3;
}


/* Lägg till i slutet av din style.css */
.toast-icon::before {
    margin-right: 8px;
    font-weight: bold;
}

.toast.success .toast-icon::before { content: '✅ '; }
.toast.error .toast-icon::before { content: '❌ '; }
.toast.warning .toast-icon::before { content: '⚠️ '; }
.toast.info .toast-icon::before { content: 'ℹ️ '; }

/* ============================================================================
   RANDARE-SPECIFIKA STILAR
============================================================================ */

/* Subtile randare-länk på startsidan */
.randare-link {
  margin-top: 40px;
  text-align: center;
}

.randare-link-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 12px 20px;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  text-decoration: none;
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-standard);
  backdrop-filter: blur(8px);
}

.randare-link-btn:hover {
  background: var(--color-surface);
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.randare-link-btn:active {
  transform: translateY(0);
}

.randare-link-icon {
  font-size: 16px;
  opacity: 0.8;
}

.randare-link-text {
  font-size: var(--font-size-sm);
}

.randare-link-arrow {
  font-size: 14px;
  opacity: 0.6;
  transition: transform var(--duration-normal) var(--ease-standard);
}

.randare-link-btn:hover .randare-link-arrow {
  transform: translateX(2px);
  opacity: 1;
}

/* Randare-meny */
.randare-menu-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 32px 16px;
}

.randare-menu-header {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 24px;
}

.back-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-standard);
}

.back-btn:hover {
  background: var(--color-surface);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.back-btn-icon {
  font-size: 16px;
}

.randare-menu-header .page-title {
  margin: 0;
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
}

.randare-menu-subtitle {
  text-align: center;
  color: var(--color-text-secondary);
  margin-bottom: 32px;
  font-size: var(--font-size-lg);
}

.randare-menu-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.randare-feature-card {
  text-align: center;
  transition: transform var(--duration-normal) var(--ease-standard);
}

.randare-feature-card:hover {
  transform: translateY(-2px);
}

.feature-icon {
  font-size: 48px;
  margin-bottom: 16px;
  display: block;
}

/* Admin randare-panel */
.randare-summary {
  margin-bottom: 32px;
  padding: 24px;
  background: var(--color-surface);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
}

.randare-summary h4 {
  margin: 0 0 16px 0;
  color: var(--color-primary);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
}

.randare-evaluations {
  margin-top: 24px;
}

.randare-evaluations h4 {
  margin: 0 0 16px 0;
  color: var(--color-text);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-medium);
}

/* Responsiv design för randare */
@media (max-width: 768px) {
  .randare-link {
    margin-top: 32px;
  }
  
  .randare-link-btn {
    padding: 10px 16px;
    gap: 8px;
  }
  
  .randare-link-text {
    font-size: var(--font-size-xs);
  }
  
  .randare-menu-content {
    padding: 24px 16px;
  }
  
  .randare-menu-header {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
  
  .randare-menu-header .page-title {
    font-size: var(--font-size-2xl);
  }
  
  .randare-menu-subtitle {
    font-size: var(--font-size-md);
  }
  
  .randare-menu-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  
  .feature-icon {
    font-size: 36px;
  }
  
  .randare-summary {
    padding: 16px;
    margin-bottom: 24px;
  }
  
  .randare-summary h4 {
    font-size: var(--font-size-lg);
  }
  
  .randare-evaluations h4 {
    font-size: var(--font-size-md);
  }
}

/* =============================================================================
   EVALUATION DELETE BUTTON STYLES
============================================================================ */

.evaluation-card .btn--danger {
    background: var(--color-danger) !important;
    color: white !important;
    border: none !important;
    padding: 8px 16px !important;
    border-radius: 6px !important;
    cursor: pointer !important;
    font-size: 14px !important;
    transition: all 0.2s ease !important;
    font-weight: 500 !important;
}

.evaluation-card .btn--danger:hover {
    background: #d32f2f !important;
    transform: translateY(-1px) !important;
    box-shadow: 0 4px 8px rgba(211, 47, 47, 0.3) !important;
}

.evaluation-card .btn--danger:active {
    transform: translateY(0) !important;
    box-shadow: 0 2px 4px rgba(211, 47, 47, 0.3) !important;
}

/* =============================================================================
   RECOMMENDATION BUTTONS STYLES
============================================================================ */

.recommend-buttons {
    display: flex;
    gap: 16px;
    margin-top: 8px;
}

.recommend-btn {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 20px 16px;
    border: 2px solid var(--color-border);
    border-radius: 12px;
    background: var(--color-background);
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 16px;
    font-weight: 500;
    color: var(--color-text);
}

.recommend-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.recommend-btn.recommend-yes:hover {
    border-color: var(--color-success);
    background: var(--color-success);
    color: white;
}

.recommend-btn.recommend-no:hover {
    border-color: #dc2626 !important;
    background: #dc2626 !important;
    color: white !important;
}

.recommend-btn.selected {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.recommend-btn.recommend-yes.selected {
    border-color: var(--color-success);
    background: var(--color-success);
}

.recommend-btn.recommend-no.selected {
    border-color: #dc2626 !important;
    background: #dc2626 !important;
    color: white !important;
}

.recommend-icon {
    font-size: 24px;
    line-height: 1;
}

.recommend-text {
    font-weight: 600;
}

/* Responsive design för rekommendationsknappar */
@media (max-width: 768px) {
    .recommend-buttons {
        flex-direction: column;
        gap: 12px;
    }
    
    .recommend-btn {
        flex-direction: row;
        justify-content: center;
        padding: 16px;
    }
    
    .recommend-icon {
        font-size: 20px;
    }
}