/* Variabile CSS */
:root {
  --color-text: #333;
  --color-heading: #1a1a1a;
  --color-accent: #8a6d3b;
  --color-accent-hover: #74592a;
  --color-accent-light: rgba(138, 109, 59, 0.1);
  --color-link: #0066cc;
  --color-link-hover: #004c99;
  --color-background: #f9f9f9;
  --color-card: #ffffff;
  --color-border: #e1e1e1;
  --color-border-light: #f0f0f0;
  --color-success: #2e7d32;
  --color-success-bg: #e8f5e9;
  --color-error: #c62828;
  --color-error-bg: #ffebee;
  --color-info: #0277bd;
  --color-info-bg: #e1f5fe;
  --color-warning: #e65100;
  --color-warning-bg: #fff3e0;
  
  --font-heading: 'Gloock', serif;
  --font-body: 'Lora', serif;
  --font-alt: 'Merriweather', serif;
  --font-sans: 'Source Sans 3', sans-serif;
  
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
  --shadow-focus: 0 0 0 3px rgba(138, 109, 59, 0.25);
  
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-pill: 9999px;
  
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 400ms ease;
  
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
}

/* Reset CSS */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* Base styles */
body {
  font-family: var(--font-sans);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-background);
  font-size: 16px;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.login-container {
  display: flex;
  flex-direction: column;
  flex: 1;
  justify-content: center;
  align-items: center;
  padding: var(--spacing-3xl) var(--spacing-lg);
  max-width: 500px;
  margin: 0 auto;
  width: 100%;
}

/* Typography */
h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  line-height: var(--line-height-heading);
  color: var(--color-heading);
  scroll-margin-top: 80px; /* For smooth scrolling to anchors */
} 



p {
  margin-bottom: var(--spacing-md);
}

a {
  color: var(--color-link);
  text-decoration: none;
  transition: color var(--transition-normal);
}

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

/* Branding */
.branding {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
  animation: fadeIn 0.8s ease;
}

.site-logo {
  font-family: var(--font-heading);
  font-size: 3.5rem;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: var(--spacing-sm);
  letter-spacing: 1px;
  line-height: 1.1;
}

.site-description {
  font-family: var(--font-alt);
  font-size: 1.1rem;
  color: #555;
  font-style: italic;
  font-weight: 300;
  max-width: 400px;
  margin: 0 auto var(--spacing-xl);
}

/* Authentication card */
.auth-card {
  width: 100%;
  background-color: var(--color-card);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: var(--spacing-2xl);
  transition: transform var(--transition-slow), box-shadow var(--transition-slow);
  animation: slideUp 0.6s ease;
}

.auth-title {
  text-align: center;
  font-size: 1.8rem;
  margin-bottom: var(--spacing-xl);
}

/* Form elements */
.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-group label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 500;
  color: var(--color-heading);
}

.form-control {
  width: 100%;
  padding: var(--spacing-md) var(--spacing-lg);
  font-size: 1rem;
  line-height: 1.5;
  color: var(--color-text);
  background-color: #fff;
  background-clip: padding-box;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.form-control:focus {
  border-color: var(--color-accent);
  outline: 0;
  box-shadow: var(--shadow-focus);
}

.form-check {
  display: flex;
  align-items: center;
  margin-bottom: var(--spacing-md);
}

.form-check-input {
  margin-right: var(--spacing-sm);
  width: 18px;
  height: 18px;
  cursor: pointer;
}

.form-check-label {
  cursor: pointer;
}

.form-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-lg);
}

.form-actions .form-check {
  margin-bottom: 0;
}

.forgot-password {
  font-size: 0.95rem;
}

.form-hint {
  text-align: center;
  font-size: 0.95rem;
  color: #666;
  margin-top: var(--spacing-xl);
}

/* Buttons */
.btn {
  display: inline-block;
  font-weight: 500;
  text-align: center;
  white-space: nowrap;
  vertical-align: middle;
  user-select: none;
  border: 1px solid transparent;
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: 1rem;
  line-height: 1.5;
  border-radius: var(--radius-sm);
  transition: all var(--transition-normal);
  cursor: pointer;
}

.btn-primary {
  color: white;
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  box-shadow: 0 2px 5px rgba(138, 109, 59, 0.2);
}

.btn-primary:hover {
  background-color: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 10px rgba(138, 109, 59, 0.3);
}

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

.btn-block {
  display: block;
  width: 100%;
}

/* Alert messages */
.alert {
  position: relative;
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  animation: fadeIn 0.3s ease;
}

.alert-success {
  color: var(--color-success);
  background-color: var(--color-success-bg);
  border-color: #c3e6cb;
}

.alert-danger {
  color: var(--color-error);
  background-color: var(--color-error-bg);
  border-color: #f5c6cb;
}

.alert-info {
  color: var(--color-info);
  background-color: var(--color-info-bg);
  border-color: #bee5eb;
}

/* Input group with icons */
.input-group {
  position: relative;
}

.input-icon {
  position: absolute;
  right: var(--spacing-md);
  top: 50%;
  transform: translateY(-50%);
  color: #777;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
  font-size: 1.1rem;
  transition: color var(--transition-normal);
}

.input-icon:hover {
  color: var(--color-accent);
}

.input-with-icon {
  padding-right: 40px;
}

/* Footer */
footer {
  background-color: white;
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.05);
  padding: var(--spacing-xl) 0;
  margin-top: auto;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.footer-links {
  display: flex;
  justify-content: center;
  list-style: none;
  flex-wrap: wrap;
  margin-bottom: var(--spacing-md);
}

.footer-links li {
  margin: 0 var(--spacing-md) var(--spacing-sm);
}

.footer-links a {
  color: #555;
  font-size: 0.95rem;
  transition: color var(--transition-normal);
}

.footer-links a:hover {
  color: var(--color-accent);
}

.copyright {
  color: #777;
  font-size: 0.9rem;
  text-align: center;
}

/* Modal */

.modal-open {
  overflow: hidden;
}
.modal-open .modal {
  overflow-x: hidden;
  overflow-y: auto;
}
.modal {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1050;
  display: none;
  width: 100%;
  height: 100%;
  overflow: hidden;
  outline: 0;
}
.modal-dialog {
  position: relative;
  width: auto;
  margin: 0.5rem;
  pointer-events: none;
}
.modal.fade .modal-dialog {
  transition: transform 0.3s ease-out;
  transform: translate(0, -50px);
}
@media (prefers-reduced-motion: reduce) {
  .modal.fade .modal-dialog {
    transition: none;
  }
}
.modal.show .modal-dialog {
  transform: none;
}
.modal.modal-static .modal-dialog {
  transform: scale(1.02);
}
.modal-dialog-scrollable {
  display: flex;
  max-height: calc(100% - 1rem);
}
.modal-dialog-scrollable .modal-content {
  max-height: calc(100vh - 1rem);
  overflow: hidden;
}
.modal-dialog-scrollable .modal-header,
.modal-dialog-scrollable .modal-footer {
  flex-shrink: 0;
}
.modal-dialog-scrollable .modal-body {
  overflow-y: auto;
}
.modal-dialog-centered {
  display: flex;
  align-items: center;
  min-height: calc(100% - 1rem);
}
.modal-dialog-centered::before {
  display: block;
  height: calc(100vh - 1rem);
  content: "";
}
.modal-dialog-centered.modal-dialog-scrollable {
  flex-direction: column;
  justify-content: center;
  height: 100%;
}
.modal-dialog-centered.modal-dialog-scrollable .modal-content {
  max-height: none;
}
.modal-dialog-centered.modal-dialog-scrollable::before {
  content: none;
}
.modal-content {
  position: relative;
  display: flex;
  flex-direction: column;
  width: 100%;
  pointer-events: auto;
  background-color: #fff;
  background-clip: padding-box;
  border: 1px solid rgba(0, 0, 0, 0.2);
  border-radius: 0.3rem;
  outline: 0;
}
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1040;
  width: 100vw;
  height: 100vh;
  background-color: #000;
}
.modal-backdrop.fade {
  opacity: 0;
}
.modal-backdrop.show {
  opacity: 0.5;
}
.modal-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: 1rem 1rem;
  border-bottom: 1px solid #E1E1F0;
  border-top-left-radius: calc(0.3rem - 1px);
  border-top-right-radius: calc(0.3rem - 1px);
}
.modal-header .close {
  padding: 1rem 1rem;
  margin: -1rem -1rem -1rem auto;
}
.modal-title {
  margin-bottom: 0;
  line-height: 1.5;
}
.modal-body {
  position: relative;
  flex: 1 1 auto;
  padding: 1rem;
}
.modal-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  padding: 0.75rem;
  border-top: 1px solid #E1E1F0;
  border-bottom-right-radius: calc(0.3rem - 1px);
  border-bottom-left-radius: calc(0.3rem - 1px);
}
.modal-footer > * {
  margin: 0.25rem;
}
.modal-scrollbar-measure {
  position: absolute;
  top: -9999px;
  width: 50px;
  height: 50px;
  overflow: scroll;
}
@media (min-width: 576px) {
  .modal-dialog {
    max-width: 500px;
    margin: 1.75rem auto;
  }

  .modal-dialog-scrollable {
    max-height: calc(100% - 3.5rem);
  }
  .modal-dialog-scrollable .modal-content {
    max-height: calc(100vh - 3.5rem);
  }

  .modal-dialog-centered {
    min-height: calc(100% - 3.5rem);
  }
  .modal-dialog-centered::before {
    height: calc(100vh - 3.5rem);
  }

  .modal-sm {
    max-width: 300px;
  }
}
@media (min-width: 992px) {
  .modal-lg,
.modal-xl {
    max-width: 800px;
  }
}
@media (min-width: 1200px) {
  .modal-xl {
    max-width: 1140px;
  }
}

/* Header */
header {
  background-color: white;
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
  position: sticky;
  top: 0;
  z-index: 100;
}    
.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-lg) 0;
}    
.site-logo {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  color: var(--color-heading);
  font-weight: 700;
  letter-spacing: 1px;
  line-height: 1.1;
}
.site-logo a {
  color: var(--color-heading);
  text-decoration: none;
  transition: color var(--transition-normal);
}
.site-logo a:hover {
  color: var(--color-accent);
}
    
/* User menu */
.user-menu {
  position: relative;
}    
.user-menu-button {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-pill);
  transition: background-color var(--transition-normal);
}    
.user-menu-button:hover {
  background-color: rgba(0,0,0,0.05);
}    
.user-avatar {
  width: 40px;
  height: 40px;
  background-color: var(--color-accent);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 1.1rem;
}    
.user-name {
  font-weight: 500;
}    
.user-dropdown {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  background-color: white;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  width: 240px;
  z-index: 100;
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transform-origin: top right;
  transition: opacity var(--transition-normal), transform var(--transition-normal), visibility var(--transition-normal);
}    
.user-dropdown.active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}    
.user-email {
  padding: var(--spacing-md) var(--spacing-lg);
  border-bottom: 1px solid var(--color-border-light);
  font-weight: 600;
  color: var(--color-accent);
  font-size: 0.9rem;
}    
.user-dropdown-menu {
  list-style: none;
}    
.user-dropdown-item {
  width: 100%;
  display: block;
}    
.user-dropdown-link {
  display: block;
  padding: var(--spacing-md) var(--spacing-lg);
  color: var(--color-text);
  transition: background-color var(--transition-normal);
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  font-size: 1rem;
  font-family: var(--font-sans);
  cursor: pointer;
}    
.user-dropdown-link:hover {
  background-color: #f5f5f5;
  color: var(--color-accent);
}    
.user-dropdown-link.logout {
  color: #d32f2f;
  border-top: 1px solid var(--color-border-light);
}    
.user-dropdown-link.logout:hover {
  background-color: #fff5f5;
}

 /* Back to contents link */
.back-to-contents {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  color: var(--color-accent);
  text-decoration: none;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 500;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-pill);
  background-color: white;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  margin: var(--spacing-lg) 0;
}
.back-to-contents:hover {
  transform: translateX(-5px);
  box-shadow: var(--shadow-md);
  color: var(--color-accent-hover);
}
.back-to-contents::before {
  content: "←";
  font-size: 0.9rem;
}

/* Reading progress */
.progress-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  z-index: 9999;
}
.progress-bar {
  height: 100%;
  background-color: var(--color-accent);
  width: 0;
  transition: width var(--transition-fast);
}

/* Main content */
main {
  flex: 1;
  padding: var(--spacing-2xl) 0;
}

/* Page title */
.page-title {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}
.page-title h1 {
  font-size: 2.5rem;
  color: var(--color-heading);
  margin-bottom: var(--spacing-md);
  font-family: var(--font-heading);
  position: relative;
  display: inline-block;
}
.page-title h1::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -10px;
  width: 60px;
  height: 3px;
  background-color: var(--color-accent);
  transform: translateX(-50%);
}
.page-subtitle {
  font-size: 1.2rem;
  color: #555;
  font-family: var(--font-alt);
  font-weight: 300;
  max-width: 600px;
  margin: 0 auto;
}
/* Chapter list */
.chapter-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--spacing-xl);
}

/* Chapter card */
.chapter-card {
  background-color: white;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  display: flex;
  flex-direction: column;
  height: 100%;
}    
.chapter-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}
.chapter-header {
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--color-border-light);
}
.chapter-number {
  display: inline-block;
  color: var(--color-accent);
  font-weight: 700;
  margin-bottom: var(--spacing-xs);
  font-size: 0.9rem;
  font-family: var(--font-sans);
}
.chapter-title {
  font-size: 1.4rem;
  font-family: var(--font-heading);
  margin-bottom: 0;
  position: relative;
  padding-right: 20px;
}    
.chapter-title a {
  color: var(--color-heading);
  display: block;
}    
.chapter-title a:hover {
  color: var(--color-accent);
}    
.chapter-title a::after {
  content: "→";
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  opacity: 0;
  transition: transform var(--transition-normal), opacity var(--transition-normal);
}    
.chapter-card:hover .chapter-title a::after {
  opacity: 1;
  transform: translate(5px, -50%);
}    
.chapter-description {
  padding: var(--spacing-md) var(--spacing-lg);
  font-size: 0.95rem;
  color: #666;
  flex-grow: 1;
}

.chapter-title h1 {
      font-size: 2.5rem;
      color: var(--color-heading);
      margin-bottom: var(--spacing-md);
      font-family: var(--font-heading);
      position: relative;
      padding-bottom: var(--spacing-md);
    }    
.chapter-title h1::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 80px;
  height: 3px;
  background: linear-gradient(to right, transparent, var(--color-accent), transparent);
  transform: translateX(-50%);
}    
.reading-time {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  color: var(--color-text-light);
  padding: var(--spacing-xs) var(--spacing-lg);
  background-color: #f5f5f5;
  border-radius: var(--radius-pill);
}    
.reading-time::before {
  content: "⏱️";
  margin-right: var(--spacing-xs);
}

/* Chapter footer */
.chapter-footer {
  padding: var(--spacing-md) var(--spacing-lg) var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

/* Material resources section */
.materials-wrapper {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-lg);
}    
.resources-section {
  flex: 1;
  min-width: 120px;
}
.resources-title {
  font-size: 0.9rem;
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
  color: #555;
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}
.worksheets-title::before {
  content: "📄";
  font-size: 1rem;
}
.assignment-title::before {
  content: "📝";
  font-size: 1rem;
}    
.worksheet-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}
.worksheet-link {
  background-color: #f5f5f5;
  color: var(--color-text);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-pill);
  font-size: 0.85rem;
  transition: all var(--transition-normal);
  border: 1px solid transparent;
}
.worksheet-link:hover {
  background-color: white;
  color: var(--color-accent);
  border-color: var(--color-accent-light);
  transform: translateY(-2px);
}
.assignment-link {
  display: inline-flex;
  align-items: center;
  background-color: var(--color-accent-light);
  color: var(--color-accent);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-pill);
  font-size: 0.85rem;
  transition: all var(--transition-normal);
  border: 1px solid transparent;
  font-weight: 500;
}
.assignment-link:hover {
  background-color: white;
  border-color: var(--color-accent);
  transform: translateY(-2px);
}
    
/* Time estimation indicator */
.time-indicator {
  margin-top: var(--spacing-sm);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: #f8f8f8;
  border-radius: var(--radius-pill);
  font-size: 0.85rem;
  color: #666;
  width: fit-content;
}    
.time-indicator-icon {
  color: var(--color-accent);
  font-size: 1rem;
}    
.time-indicator-label {
  font-weight: 500;
}
    
/* Toast notification */
.toast {
  position: fixed;
  top: 20px;
  right: 20px;
  padding: var(--spacing-md) var(--spacing-lg);
  background-color: white;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  z-index: 1000;
  opacity: 0;
  transform: translateY(-20px);
  transition: opacity var(--transition-normal), transform var(--transition-normal);
  max-width: 300px;
}    
.toast.show {
  opacity: 1;
  transform: translateY(0);
}    
.toast-icon {
  font-size: 1.2rem;
}    
.toast-text {
  font-size: 0.95rem;
  font-weight: 500;
}
    
/* Loader */
.loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background-color: transparent;
  z-index: 9999;
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}    
.loader::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 50%;
  background-color: var(--color-accent);
  animation: loading 1s infinite ease-in-out;
}    
.loader.active {
  opacity: 1;
  visibility: visible;
}


 /* Table of contents */
.toc {
  background-color: #f5f5f5;
  padding: var(--spacing-lg);
  margin: var(--spacing-md) 0 var(--spacing-xl);
  border-radius: var(--radius-md);
  border-left: 4px solid var(--color-accent);
  box-shadow: var(--shadow-sm);
}
.toc h2 {
  font-family: var(--font-sans);
  font-size: 1.2rem;
  margin-bottom: var(--spacing-md);
  font-weight: 600;
}
.toc ul {
  list-style: none;
  padding-left: var(--spacing-sm);
}
.toc li {
  margin-bottom: var(--spacing-sm);
  position: relative;
  padding-left: var(--spacing-lg);
}    
.toc li::before {
  content: ">";
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-size: 0.9rem;
  transition: transform var(--transition-normal);
}    
.toc li:hover::before {
  transform: translateX(3px);
}    
.toc a {
  color: var(--color-text);
  text-decoration: none;
  transition: color var(--transition-normal);
}    
.toc a:hover {
  color: var(--color-accent);
}

/* Lead paragraph */
.lead {
  font-size: 1.2rem;
  font-family: var(--font-alt);
  line-height: 1.6;
  margin-bottom: var(--spacing-2xl);
  color: var(--color-subheading);
  font-weight: 300;
  border-left: 3px solid var(--color-accent);
  padding-left: var(--spacing-lg);
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}
@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@keyframes loading {
      0% {
        left: -100%;
      }
      100% {
        left: 100%;
      }
    }

/* Media Queries */
@media (max-width: 992px) {
      .chapter-list {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
      }
    }
@media (max-width: 768px) {
  .login-container {
    padding: var(--spacing-xl) var(--spacing-md);
  }
  
  .site-logo {
    font-size: 2.8rem;
  }
  
  .site-description {
    font-size: 1rem;
  }
  
  .auth-card {
    padding: var(--spacing-xl);
  }
  
  .auth-title {
    font-size: 1.5rem;
  }
  
  .form-actions {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: var(--spacing-sm);
  }

  .page-title h1 {
      font-size: 2rem;
    }
    
    .page-subtitle {
      font-size: 1.1rem;
    }
    
    .chapter-list {
      grid-template-columns: 1fr;
      gap: var(--spacing-lg);
    }
    
    .materials-wrapper {
      flex-direction: column;
      gap: var(--spacing-md);
    }
}
@media (max-width: 480px) {
  .site-logo {
    font-size: 2.3rem;
  }

  .header-inner {
      padding: var(--spacing-md) 0;
    }
    
    .user-name {
      display: none;
    }
    
    .user-avatar {
      width: 35px;
      height: 35px;
      font-size: 0.9rem;
    }
    
    .page-title h1 {
      font-size: 1.8rem;
    }
  
  .auth-card {
    padding: var(--spacing-lg);
  }
  
  .footer-links {
    flex-direction: column;
    align-items: center;
  }
  
  .footer-links li {
    margin: var(--spacing-xs) 0;
  }
}

div.help-block {
  color: #a32929;
  padding:4px;
}
.form-group.has-error input {
    /* your styles here */
    border-color:#a32929;
}
input#loginform-email_code {
    text-align: center;
    font-size: 24px;
    padding: 10px;
}
input::placeholder {
  color: #aaa;
}
input#loginform-email_code:focus::placeholder {
  color: transparent;
}



.btn-access {
  display: inline-flex;
     background-color: var(--color-accent);
    border-radius: 9999px;
    color: #fff;
    /* padding: 0.5em; */
    padding: 5px 15px;
    font-weight: 500;
        transition: all var(--transition-normal);

}

.btn-access:hover {
  color:#fff;
  text-decoration:none;
  background-color: var(--color-accent-hover);
  transform: translateY(-2px);
}