/* ===================================================================
 *  Teacher / booking / library page styles.
 *
 *  Loaded on the public teacher + article pages (after index.css) and
 *  on the article/book/calendar management pages (after styles.css and
 *  dashboard.css). Both of those base sheets already declare the brand
 *  palette (--primary-color, --success, --warning, ...), the semantic
 *  tokens (--bg, --surface, --text, --border, --primary, --ring,
 *  --radius-*, --space-*) and the `*` / `body` / `[dir]` base rules.
 *
 *  This file therefore declares NEITHER: re-declaring them here made
 *  whichever sheet loaded first lose — most visibly in dark mode,
 *  where the light values were pinned back on and cards stayed white.
 *  What is left is the alias layer the rules below were written
 *  against, mapped onto the semantic tokens so it themes itself.
 * =================================================================== */

/* ===================================================================
 *  Alias layer — maps variable names used in this file onto the
 *  semantic tokens. On public pages index.css provides the semantic
 *  tokens; on app pages styles.css does.
 *
 *  DO NOT create circular remappings (e.g. --card-bg: var(--surface)
 *  when --surface itself resolves via --card-bg). That makes every
 *  var() that references the aliased name fall back to initial
 *  (transparent), breaking backgrounds everywhere.
 * =================================================================== */
:root {
  --shadow: rgba(32, 77, 72, 0.15);
  --hover-bg: #E8E9EB;
  --button-primary: #204d48;
  --button-secondary: #955f30;
}

[data-theme="dark"] {
  --shadow: rgba(0, 0, 0, 0.5);
  --hover-bg: #15212e;
  --button-primary: #5fbfb4;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 20px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--accent-primary);
}

.logo i {
  font-size: 2rem;
}

.nav-menu ul {
  display: flex;
  list-style: none;
  gap: 2rem;
}

.nav-menu a {
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 500;
  transition: color 0.3s ease;
  position: relative;
  padding: 0.5rem 0;
}

.nav-menu a:hover,
.nav-menu a.active {
  color: var(--accent-primary);
}

.nav-menu a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent-primary);
  transition: width 0.3s ease;
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
  width: 100%;
}

.nav-controls {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.lang-toggle,
.theme-toggle {
  background: var(--button-primary);
  color: #fff;
  border: none;
  padding: 0.5rem 1rem;
  border-radius: 25px;
  cursor: pointer;
  transition: all 0.3s ease;
  font-weight: 500;
}

.lang-toggle:hover,
.theme-toggle:hover {
  background: var(--button-secondary);
  transform: translateY(-2px);
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--text-primary);
  cursor: pointer;
}

/* Page Header Styles */
.page-header {
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  color: #fff;
  padding: 4rem 0;
  text-align: center;
}

.page-header-content h1 {
  font-size: 3rem;
  font-weight: bold;
  margin-bottom: 1rem;
}

.page-header-content p {
  font-size: 1.2rem;
  margin-bottom: 2rem;
  opacity: 0.9;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.library-stats {
  display: flex;
  justify-content: center;
  gap: 3rem;
  margin-top: 2rem;
}

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

.stat-number {
  display: block;
  font-size: 2.5rem;
  font-weight: bold;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 0.9rem;
  opacity: 0.8;
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  color: #fff;
  padding: 6rem 0;
  text-align: center;
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: bold;
  margin-bottom: 1.5rem;
  line-height: 1.2;
}

.hero-subtitle {
  font-size: 1.25rem;
  margin-bottom: 2.5rem;
  opacity: 0.9;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* Button Styles */
.btn {
  padding: 1rem 2rem;
  border: none;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  text-align: center;
}

.btn-primary {
  background: var(--button-primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-color);
  transform: translateY(-2px);
  box-shadow: 0 5px 15px var(--shadow);
}

.btn-secondary {
  background: transparent;
  color: #fff;
  border: 2px solid #fff;
}

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

.btn-outline {
  background: transparent;
  color: var(--accent-primary);
  border: 2px solid var(--accent-primary);
}

.btn-outline:hover {
  background: var(--accent-primary);
  color: #fff;
}

/* Section Styles */
.section-title {
  font-size: 2.5rem;
  text-align: center;
  margin-bottom: 3rem;
  color: var(--text-primary);
  font-weight: bold;
}

.section-footer {
  text-align: center;
  margin-top: 3rem;
}

/* Filter Styles */
.blog-filters,
.library-filters {
  padding: 2rem 0;
  background-color: var(--bg-secondary);
}

.filter-controls {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  align-items: center;
}

.search-box {
  position: relative;
  max-width: 400px;
  width: 100%;
}

.search-box i {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-secondary);
}

[dir="rtl"] .search-box i {
  left: auto;
  right: 1rem;
}

.search-box input {
  width: 100%;
  padding: 1rem 1rem 1rem 3rem;
  border: 2px solid var(--border-color);
  border-radius: 25px;
  background: var(--card-bg);
  color: var(--text-primary);
  font-size: 1rem;
  transition: all 0.3s ease;
}

[dir="rtl"] .search-box input {
  padding: 1rem 3rem 1rem 1rem;
}

.search-box input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(32, 77, 72, 0.1);
}

.category-filters {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
}

.filter-btn {
  padding: 0.75rem 1.5rem;
  border: 2px solid var(--border-color);
  background: var(--card-bg);
  color: var(--text-primary);
  border-radius: 25px;
  cursor: pointer;
  transition: all 0.3s ease;
  font-weight: 500;
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--primary-color);
  color: #fff;
  border-color: var(--primary-color);
}

.filter-groups {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  justify-content: center;
}

.filter-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  min-width: 150px;
}

.filter-group label {
  font-weight: 600;
  color: var(--text-primary);
}

.filter-group select {
  padding: 0.75rem;
  border: 2px solid var(--border-color);
  border-radius: 10px;
  background: var(--card-bg);
  color: var(--text-primary);
  cursor: pointer;
  transition: all 0.3s ease;
}

.filter-group select:focus {
  outline: none;
  border-color: var(--accent-primary);
}

/* Featured Article/Book Styles */
.featured-article,
.featured-books {
  padding: 4rem 0;
  background-color: var(--bg-primary);
}

.featured-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  max-width: 1000px;
  margin: 0 auto;
}

.featured-image {
  position: relative;
  border-radius: 15px;
  overflow: hidden;
}

.featured-image img {
  width: 100%;
  height: 400px;
  object-fit: cover;
}

.featured-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: var(--accent-secondary);
  color: #fff;
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-weight: 600;
  font-size: 0.875rem;
}

[dir="rtl"] .featured-badge {
  left: auto;
  right: 1rem;
}

.featured-content .article-category,
.featured-content .book-category {
  display: inline-block;
  background: var(--primary-color);
  color: #fff;
  padding: 0.5rem 1rem;
  border-radius: 15px;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.featured-content h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
  line-height: 1.3;
}

.featured-content p {
  color: var(--text-secondary);
  margin-bottom: 2rem;
  font-size: 1.1rem;
  line-height: 1.6;
}

.article-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.author-info {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.author-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
}

.author-name {
  font-weight: 600;
  color: var(--text-primary);
  display: block;
}

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

.article-stats {
  display: flex;
  gap: 1rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.article-stats span {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

/* Featured Books Slider */
.featured-books-slider {
  max-width: 1000px;
  margin: 0 auto;
}

.featured-book-card {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 3rem;
  align-items: start;
}

.book-cover {
  position: relative;
}

.book-cover img {
  width: 100%;
  border-radius: 10px;
  box-shadow: 0 10px 30px var(--shadow);
}

.book-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  padding: 0.5rem 1rem;
  border-radius: 15px;
  font-size: 0.875rem;
  font-weight: 600;
  color: #fff;
}

.book-badge.bestseller {
  background: var(--accent-secondary);
}

.book-badge.new {
  background: var(--accent-primary);
}

[dir="rtl"] .book-badge {
  right: auto;
  left: 1rem;
}

.book-info h3 {
  font-size: 1.8rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.book-author {
  color: var(--text-secondary);
  margin-bottom: 1rem;
  font-style: italic;
}

.book-rating {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.stars {
  display: flex;
  gap: 0.25rem;
  color: var(--accent-secondary);
}

.rating-score {
  font-weight: 600;
  color: var(--text-primary);
}

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

.book-description {
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.book-meta {
  display: flex;
  gap: 1rem;
  align-items: center;
  flex-wrap: wrap;
}

.book-level {
  padding: 0.25rem 0.75rem;
  border-radius: 15px;
  font-size: 0.875rem;
  font-weight: 600;
  color: #fff;
}

.book-level.beginner {
  background: var(--success);
}

.book-level.intermediate {
  background: var(--warning);
  color: #1f2429;
}

.book-level.advanced {
  background: var(--danger);
}

.book-pages,
.book-downloads {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

/* Articles Section */
.articles-section,
.blog-articles {
  padding: 6rem 0;
  background-color: var(--bg-secondary);
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
}

.article-card {
  background: var(--card-bg);
  border-radius: 15px;
  overflow: hidden;
  box-shadow: 0 5px 20px var(--shadow);
  transition: all 0.3s ease;
  cursor: pointer;
}

.article-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px var(--shadow);
}

.article-image {
  height: 200px;
  overflow: hidden;
}

.article-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.article-card:hover .article-image img {
  transform: scale(1.05);
}

.article-content {
  padding: 1.5rem;
}

.article-category {
  margin-bottom: 1rem;
}

.article-category span {
  background: var(--primary-color);
  color: #fff;
  padding: 0.25rem 0.75rem;
  border-radius: 15px;
  font-size: 0.875rem;
  font-weight: 600;
}

.article-content h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
  line-height: 1.4;
}

.article-content p {
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.read-time {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

/* E-books Section */
.ebooks-section,
.books-library {
  padding: 6rem 0;
  background-color: var(--bg-primary);
}

.ebooks-grid,
.books-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  min-height: 400px;
}

.ebook-card,
.book-card {
  text-align: center;
  transition: transform 0.3s ease;
}

.ebook-card:hover,
.book-card:hover {
  transform: translateY(-5px);
}

.ebook-cover,
.book-card .book-cover {
  position: relative;
  margin-bottom: 1rem;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 5px 20px var(--shadow);
}

.ebook-cover img,
.book-card .book-cover img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.book-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(93, 97, 105, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.book-card:hover .book-overlay {
  opacity: 1;
}

.btn-download,
.btn-preview {
  background: var(--primary-color);
  color: #fff;
  border: none;
  padding: 0.75rem;
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.3s ease;
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-download:hover,
.btn-preview:hover {
  background: var(--accent-color);
  transform: scale(1.1);
}

.ebook-info,
.book-card .book-info {
  padding: 0 1rem;
}

.ebook-info h3,
.book-card .book-info h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.ebook-rating,
.book-card .book-rating {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.ebook-rating .stars,
.book-card .book-rating .stars {
  display: flex;
  gap: 0.25rem;
  color: var(--accent-secondary);
}

.ebook-level,
.book-card .book-level {
  background: var(--primary-color);
  color: #fff;
  padding: 0.25rem 0.75rem;
  border-radius: 15px;
  font-size: 0.875rem;
  font-weight: 500;
}

/* Community Section */
.community-section {
  padding: 6rem 0;
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  color: #fff;
}

.community-section .section-title {
  color: #fff;
}

.community-description {
  text-align: center;
  font-size: 1.1rem;
  margin-bottom: 3rem;
  opacity: 0.9;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.community-buttons {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  max-width: 800px;
  margin: 0 auto;
}

.telegram-btn {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  background: rgba(242, 242, 241, 0.1);
  padding: 2rem;
  border-radius: 15px;
  text-decoration: none;
  color: #fff;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
}

.telegram-btn:hover {
  background: rgba(242, 242, 241, 0.2);
  transform: translateY(-3px);
}

.telegram-btn i {
  font-size: 3rem;
  opacity: 0.9;
}

.telegram-info h3 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.telegram-info p {
  opacity: 0.8;
  margin-bottom: 0.5rem;
}

.member-count {
  font-size: 0.875rem;
  opacity: 0.7;
  font-weight: 600;
}

/* Newsletter Section */
.newsletter-section {
  padding: 4rem 0;
  background: var(--bg-secondary);
  text-align: center;
}

.newsletter-content h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.newsletter-content p {
  color: var(--text-secondary);
  margin-bottom: 2rem;
  font-size: 1.1rem;
}

.newsletter-form {
  display: flex;
  gap: 1rem;
  max-width: 400px;
  margin: 0 auto;
}

.newsletter-form input {
  flex: 1;
  padding: 1rem;
  border: 2px solid var(--border-color);
  border-radius: 25px;
  background: var(--card-bg);
  color: var(--text-primary);
  font-size: 1rem;
}

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

/* Reading Progress Section */
.reading-progress {
  padding: 4rem 0;
  background: var(--bg-secondary);
}

.progress-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  max-width: 800px;
  margin: 0 auto;
}

.progress-card {
  background: var(--card-bg);
  padding: 2rem;
  border-radius: 15px;
  text-align: center;
  box-shadow: 0 5px 20px var(--shadow);
  transition: transform 0.3s ease;
}

.progress-card:hover {
  transform: translateY(-5px);
}

.progress-icon {
  background: var(--primary-color);
  color: #fff;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
  font-size: 1.5rem;
}

.progress-info h3 {
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.progress-number {
  font-size: 2rem;
  font-weight: bold;
  color: var(--primary-color);
  display: block;
  margin-bottom: 0.5rem;
}

.progress-info p {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

/* Load More Section */
.load-more-section {
  text-align: center;
  margin-top: 3rem;
}

/* Footer */
.footer {
  background-color: var(--bg-secondary);
  padding: 3rem 0 1rem;
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 3rem;
  margin-bottom: 2rem;
}

.footer-brand p {
  margin-top: 1rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.footer-links {
  display: flex;
  gap: 3rem;
}

.footer-section h4 {
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li {
  margin-bottom: 0.5rem;
}

.footer-section a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.3s ease;
}

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

.social-links {
  display: flex;
  gap: 1rem;
}

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--primary-color);
  color: #fff;
  border-radius: 50%;
  transition: all 0.3s ease;
}

.social-links a:hover {
  background: var(--accent-color);
  transform: translateY(-2px);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
  color: var(--text-secondary);
}

.footer-controls {
  display: flex;
  gap: 1rem;
}

/* Teacher Profile Styles */
.profile-section {
  padding: 4rem 0;
  background-color: var(--bg-primary);
}

.profile-layout {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 3rem;
  margin-bottom: 4rem;
}

/* Profile Sidebar */
.profile-sidebar {
  background: var(--card-bg);
  border-radius: 15px;
  padding: 2rem;
  box-shadow: 0 5px 20px var(--shadow);
  height: fit-content;
}

.profile-image-section {
  text-align: center;
  margin-bottom: 2rem;
}

.profile-image-container {
  position: relative;
  display: inline-block;
  margin-bottom: 1rem;
}

.profile-image {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--border-color);
  transition: all 0.3s ease;
}

.image-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(54, 69, 79, 0.8);
  border-radius: 50%;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(54, 69, 79, 0.8);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
  cursor: pointer;
}

.profile-image-container:hover .image-overlay {
  opacity: 1;
}

.change-image-btn {
  background: none;
  border: none;
  color: white;
  text-align: center;
  cursor: pointer;
  font-size: 0.875rem;
}

.change-image-btn i {
  display: block;
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.profile-stats {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.profile-stats .stat-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  background: var(--bg-secondary);
  border-radius: 10px;
}

.profile-stats .stat-item i {
  font-size: 1.5rem;
  color: var(--primary-color);
  width: 30px;
  text-align: center;
}

.profile-stats .stat-number {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--primary-color);
  display: block;
}

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

/* Profile Main Content */
.profile-main {
  background: var(--card-bg);
  border-radius: 15px;
  padding: 2rem;
  box-shadow: 0 5px 20px var(--shadow);
}

.profile-form-section h2 {
  color: var(--text-primary);
  margin-bottom: 2rem;
  font-size: 1.8rem;
}

.profile-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group label {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 0.9rem;
}

.form-group input,
.form-group textarea,
.form-group select {
  padding: 0.75rem;
  border: 2px solid var(--border-color);
  border-radius: 8px;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 1rem;
  transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(32, 77, 72, 0.1);
}

.password-input {
  position: relative;
}

.password-toggle {
  position: absolute;
  right: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0.25rem;
}

[dir="rtl"] .password-toggle {
  right: auto;
  left: 0.75rem;
}

/* Languages Section */
.languages-section {
  border-top: 1px solid var(--border-color);
  padding-top: 2rem;
  margin-top: 2rem;
}

.languages-section h3 {
  color: var(--text-primary);
  margin-bottom: 1rem;
  font-size: 1.3rem;
}

.languages-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 1rem;
}

.language-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  background: var(--bg-secondary);
  border-radius: 8px;
}

.language-info {
  display: flex;
  gap: 1rem;
  flex: 1;
}

.language-select,
.level-select {
  flex: 1;
  padding: 0.5rem;
  border: 1px solid var(--border-color);
  border-radius: 5px;
  background: var(--card-bg);
  color: var(--text-primary);
}

.remove-language-btn {
  background: var(--danger);
  color: white;
  border: none;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.remove-language-btn:hover {
  background: #c82333;
  transform: scale(1.1);
}

.add-language-btn {
  background: var(--button-primary);
  color: white;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: all 0.3s ease;
  font-weight: 500;
}

.add-language-btn:hover {
  background: var(--accent-color);
  transform: translateY(-2px);
}

.form-actions {
  display: flex;
  gap: 1rem;
  justify-content: flex-end;
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
}

/* Calendar Section */
.calendar-section {
  background: var(--card-bg);
  border-radius: 15px;
  padding: 2rem;
  box-shadow: 0 5px 20px var(--shadow);
}

.calendar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
}

.calendar-header h2 {
  color: var(--text-primary);
  font-size: 1.8rem;
}

.calendar-controls {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.calendar-nav-btn {
  background: var(--primary);
  color: var(--on-primary);
  border: 1px solid transparent;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-lg, 12px);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease, transform 0.15s ease, box-shadow 0.2s ease;
}

.calendar-nav-btn:hover {
  background: var(--primary-hover, var(--primary));
  transform: scale(1.06);
}

.calendar-nav-btn:focus-visible {
  outline: 3px solid var(--ring);
  outline-offset: 2px;
}

[dir="rtl"] .calendar-nav-btn > i {
  transform: scaleX(-1);
}

.current-week {
  font-weight: 600;
  color: var(--text-primary);
  min-width: 200px;
  text-align: center;
}

.calendar-container {
  overflow-x: auto;
  margin-bottom: 2rem;
  position: relative;
  -webkit-overflow-scrolling: touch;
}

.calendar-grid {
  --cal-col: minmax(56px, 1fr);
  display: grid;
  grid-template-columns: 80px repeat(7, var(--cal-col));
  gap: 1px;
  background: var(--border-color);
  border-radius: var(--radius-lg, 12px);
  overflow: hidden;
  min-width: max-content;
}

@media (max-width: 768px) {
  .calendar-grid { --cal-col: minmax(40px, 1fr); }
  .calendar-grid-wrap { overflow-x: auto; max-width: 100%; }
  .calendar-week-label { min-width: 0; flex: 1; }
}

.time-column {
  background: var(--bg-secondary);
}

.time-header {
  height: 50px;
  background: var(--primary-color);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
}

.time-slot {
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  color: var(--text-secondary);
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
}

.day-column {
  background: var(--card-bg);
}

.day-header {
  height: 50px;
  background: var(--primary-color);
  color: white;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-weight: 600;
}

.day-name {
  font-size: 0.875rem;
.calendar-slot {
  height: 30px;
  background: var(--card-bg);
  border-bottom: 1px solid var(--border-color);
  cursor: pointer;
  transition: background 0.2s ease, box-shadow 0.2s ease;
  position: relative;
}

.calendar-slot:hover {
  background: var(--hover-bg, var(--surface-2));
}

.calendar-slot:focus-visible {
  outline: 3px solid var(--ring);
  outline-offset: -3px;
  z-index: 2;
}

.calendar-slot.available {
  background: var(--success);
  cursor: pointer;
}

.calendar-slot.booked {
  background: linear-gradient(135deg, #e7716e 0%, #c0524f 100%);
  cursor: not-allowed;
  position: relative;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.22),
    0 1px 4px rgba(192, 82, 79, 0.18);
}

.calendar-slot.booked::after {
  content: "\f007";
  font-family: "Font Awesome 6 Free", "Font Awesome 5 Free", system-ui, sans-serif;
  font-weight: 900;
  color: #fff;
  position: absolute;
  top: 50%;
  inset-inline-start: 50%;
  transform: translate(-50%, -50%);
  font-size: 0.75rem;
  text-shadow: 0 1px 1px rgba(0, 0, 0, 0.22);
}

.calendar-slot.booked:hover {
  background: linear-gradient(135deg, #e7716e 0%, #c0524f 100%);
  transform: none;
}

.legend-color.booked {
  background: linear-gradient(135deg, #e7716e 0%, #c0524f 100%);
}

.calendar-slot.unavailable,
.calendar-slot.past {
  background: var(--border-strong, var(--surface-2));
  cursor: not-allowed;
}

.calendar-slot.past {
  opacity: 0.6;
}

.calendar-slot.past::after {
  content: "";
  position: absolute;
  inset-block-start: 50%;
  inset-inline: 18%;
  border-block-start: 1px solid currentColor;
  color: var(--text-muted);
  opacity: 0.5;
}

.calendar-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  justify-content: center;
  margin-bottom: 2rem;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.legend-color {
  width: 20px;
  height: 20px;
  border-radius: 4px;
}

.legend-color.available {
  background: var(--success);
}

.legend-color.unavailable {
  background: var(--border-strong, var(--surface-2));
}
  width: 20px;
  height: 20px;
  border-radius: 4px;
}

.legend-color.available {
  background: var(--success);
}

.legend-color.booked {
  background: linear-gradient(135deg, #e7716e 0%, #c0524f 100%);
}

.legend-color.unavailable {
  background: var(--border-strong, var(--surface-2));
}

.calendar-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
}

/* ===================================================================
 *  Session Type Tabs — pill-style Class / Placement selector
 * =================================================================== */
.session-type-tabs {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 4px;
  background: var(--surface-2, var(--bg-secondary));
  border-radius: var(--radius-lg, 12px);
  border: 1px solid var(--border-color);
  margin-bottom: var(--space-5, 1.5rem);
}

.session-tab {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2, 0.5rem);
  padding: 0.55rem 1.25rem;
  border: none;
  border-radius: calc(var(--radius-lg, 12px) - 4px);
  background: transparent;
  color: var(--text-secondary);
  font: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.2s ease,
              color 0.2s ease,
              box-shadow 0.2s ease;
  user-select: none;
}

.session-tab:hover {
  background: var(--surface-2);
  color: var(--text-primary);
}

.session-tab:focus-visible {
  outline: 2px solid var(--primary, var(--accent-primary));
  outline-offset: -2px;
  z-index: 1;
}

.session-tab.active,
.session-tab.active:hover {
  background: var(--card-bg);
  color: var(--accent-primary);
  box-shadow:
    0 1px 3px var(--shadow),
    0 2px 8px color-mix(in srgb, var(--shadow) 40%, transparent);
}

[data-theme="dark"] .session-tab.active,
[data-theme="dark"] .session-tab.active:hover {
  box-shadow:
    0 1px 2px rgba(0, 0, 0, 0.4),
    0 2px 6px rgba(0, 0, 0, 0.3);
}

/* ===================================================================
 *  Package Cards — Buy Package section
 * =================================================================== */
.package-section {
  margin-bottom: var(--space-5, 1.5rem);
}

.package-section h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 var(--space-4, 1rem);
}

.package-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4, 1rem);
}

@media (max-width: 640px) {
  .package-options {
    grid-template-columns: 1fr;
  }
}

.package-options > .package-card {
  display: flex;
  flex-direction: column;
  padding: var(--space-5, 1.5rem);
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg, 14px);
}

.package-options > .package-card h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 var(--space-4, 1rem);
}

.package-prices {
  display: flex;
  flex-direction: column;
  gap: var(--space-3, 0.75rem);
}

.package-item {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2, 0.5rem);
  padding: var(--space-3, 0.75rem);
  background: var(--surface-2, var(--bg-secondary));
  border-radius: var(--radius, 8px);
  cursor: pointer;
  transition: background 0.2s ease;
}

.package-item:hover {
  background: color-mix(in srgb, var(--accent-primary) 8%, var(--surface-2, var(--bg-secondary)));
}

.package-sessions {
  flex: 1;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
}

.package-price {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent-primary);
}

.package-savings {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--success, #2d9b73);
  background: color-mix(in srgb, var(--success, #2d9b73) 12%, transparent);
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  white-space: nowrap;
  width: 100%;
  text-align: center;
  margin-top: 0.25rem;
}

[data-theme="dark"] .package-savings {
  background: color-mix(in srgb, var(--success, #2d9b73) 18%, transparent);
}

/* ===================================================================
 *  Credits Banner — session credits available
 * =================================================================== */
.credits-banner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3, 0.75rem);
  padding: var(--space-3, 0.75rem) var(--space-5, 1.25rem);
  border-radius: var(--radius-lg, 12px);
  background: linear-gradient(
    135deg,
    color-mix(in srgb, var(--accent-primary) 10%, var(--card-bg)) 0%,
    color-mix(in srgb, var(--accent-primary) 4%, var(--card-bg)) 100%
  );
  border: 1px solid color-mix(in srgb, var(--accent-primary) 20%, var(--border-color));
  margin-bottom: var(--space-5, 1.5rem);
}

[data-theme="dark"] .credits-banner {
  background: linear-gradient(
    135deg,
    color-mix(in srgb, var(--accent-primary) 16%, var(--card-bg)) 0%,
    color-mix(in srgb, var(--accent-primary) 8%, var(--card-bg)) 100%
  );
}

.credits-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.85rem;
  background: color-mix(in srgb, var(--accent-primary) 14%, transparent);
  border-radius: 999px;
  color: var(--text-primary);
  font-size: 0.9rem;
  font-weight: 600;
}

.credits-badge i {
  color: var(--accent-primary);
  font-size: 1rem;
}

/* Animation Classes */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Loading Animation */
.loading {
  opacity: 0.7;
  pointer-events: none;
}

/* Smooth Scrolling */
html {
  scroll-behavior: smooth;
}

/* Hidden class for filtering */
.hidden {
  display: none !important;
}

/* Notification Styles */
.notification {
  position: fixed;
  top: 20px;
  right: 20px;
  background: var(--info);
  color: #fff;
  padding: 1rem 1.5rem;
  border-radius: 10px;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transform: translateX(100%);
  transition: transform 0.3s ease;
  z-index: 10000;
  box-shadow: 0 5px 20px var(--shadow);
}

.notification.show {
  transform: translateX(0);
}

.notification-success {
  background: var(--success);
}

.notification-error {
  background: var(--danger);
}

.notification-info {
  background: var(--info);
}

.notification-warning {
  background: var(--warning);
  color: #1f2429;
}

.header.scrolled {
  box-shadow: 0 5px 20px var(--shadow);
}

.language-changing,
.theme-changing {
  transition: all 0.3s ease;
}

.books-grid .book-card.hidden {
  display: none !important;
}

.tooltip {
  position: absolute;
  background: var(--secondary-color);
  color: #fff;
  padding: 0.5rem 1rem;
  border-radius: 5px;
  font-size: 0.875rem;
  opacity: 0;
  transform: translateY(5px);
  transition: all 0.3s ease;
  z-index: 10000;
  pointer-events: none;
}

.tooltip.show {
  opacity: 1;
  transform: translateY(0);
}

.tooltip::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 5px solid transparent;
  border-top-color: var(--secondary-color);
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn:disabled:hover {
  transform: none;
  box-shadow: none;
}

/* Smooth transitions for filtering */
.book-card {
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.book-card.hidden {
  opacity: 0;
  transform: scale(0.8);
}

/* Responsive Design for Profile */
@media (max-width: 1024px) {
  .profile-layout {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .profile-sidebar {
    order: 2;
  }

  .profile-main {
    order: 1;
  }
}

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

  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    box-shadow: 0 5px 20px var(--shadow);
    padding: 1rem;
  }

  .nav-menu.active {
    display: block;
  }

  .nav-menu ul {
    flex-direction: column;
    gap: 1rem;
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .page-header-content h1 {
    font-size: 2.5rem;
  }

  .library-stats {
    gap: 1.5rem;
  }

  .stat-number {
    font-size: 2rem;
  }

  .featured-card,
  .featured-book-card {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .articles-grid {
    grid-template-columns: 1fr;
  }

  .ebooks-grid,
  .books-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .filter-groups {
    flex-direction: column;
    align-items: center;
  }

  .category-filters {
    justify-content: center;
  }

  .community-buttons {
    grid-template-columns: 1fr;
  }

  .telegram-btn {
    flex-direction: column;
    text-align: center;
    gap: 1rem;
  }

  .newsletter-form {
    flex-direction: column;
  }

  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer-links {
    justify-content: center;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .calendar-header {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }

  .calendar-controls {
    justify-content: center;
  }

  .calendar-legend {
    flex-direction: column;
    align-items: center;
    gap: 1rem;
  }

  .calendar-actions {
    flex-direction: column;
  }

  .form-actions {
    flex-direction: column;
  }

  .language-info {
    flex-direction: column;
  }

  .profile-stats {
    flex-direction: row;
    justify-content: space-around;
  }

  .profile-stats .stat-item {
    flex-direction: column;
    text-align: center;
    flex: 1;
  }

  .notification {
    right: 10px;
    left: 10px;
    transform: translateY(-100%);
  }

  .notification.show {
    transform: translateY(0);
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 15px;
  }

  .hero {
    padding: 4rem 0;
  }

  .hero-title {
    font-size: 2rem;
  }

  .page-header-content h1 {
    font-size: 2rem;
  }

  .section-title {
    font-size: 2rem;
  }

  .ebooks-grid,
  .books-grid {
    grid-template-columns: 1fr;
  }

  .articles-grid {
    grid-template-columns: 1fr;
  }

  .library-stats {
    flex-direction: column;
    gap: 1rem;
  }

  .filter-groups {
    gap: 1rem;
  }

  .filter-group {
    min-width: 120px;
  }

  .profile-section {
    padding: 2rem 0;
  }

  .profile-sidebar,
  .profile-main,
  .calendar-section {
    padding: 1.5rem;
  }

  .profile-stats {
    flex-direction: column;
  }

  .calendar-container {
    margin: 0 -1.5rem;
    padding: 0 1.5rem;
  }
}

/* RTL Specific Styles */
[dir="rtl"] .nav-menu ul {
  direction: rtl;
}

[dir="rtl"] .hero-buttons {
  direction: rtl;
}

[dir="rtl"] .article-content,
[dir="rtl"] .ebook-info,
[dir="rtl"] .book-info,
[dir="rtl"] .telegram-info {
  text-align: right;
}

[dir="rtl"] .telegram-btn {
  flex-direction: row-reverse;
}

[dir="rtl"] .footer-content {
  direction: rtl;
}

[dir="rtl"] .social-links {
  direction: ltr;
}

[dir="rtl"] .article-meta,
[dir="rtl"] .book-meta {
  direction: rtl;
}

[dir="rtl"] .author-info {
  flex-direction: row-reverse;
}

/* Teacher Info Page Styles */
.teacher-info-section {
  padding: 2rem 0 4rem;
  background-color: var(--bg-primary);
}

.teacher-header {
  display: grid;
  grid-template-columns: 250px 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
  padding: 2rem;
  background: var(--card-bg);
  border-radius: 20px;
  box-shadow: 0 10px 30px var(--shadow);
}

.teacher-image-container {
  position: relative;
  text-align: center;
}

.teacher-image {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  object-fit: cover;
  border: 5px solid var(--primary-color);
  box-shadow: 0 10px 30px var(--shadow);
}

.teacher-status {
  position: absolute;
  bottom: 20px;
  right: 20px;
  background: var(--card-bg);
  padding: 0.5rem 1rem;
  border-radius: 20px;
  box-shadow: 0 5px 15px var(--shadow);
}

.status-indicator {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  font-weight: 600;
}

.status-indicator.online {
  color: var(--success);
}

.status-indicator.online::before {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--success);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
  100% {
    opacity: 1;
  }
}

.teacher-basic-info {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 1.5rem;
}

.teacher-name {
  font-size: 2.5rem;
  font-weight: bold;
  color: var(--text-primary);
  margin: 0;
}

.teacher-credentials {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.credential-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.credential-item i {
  color: var(--primary-color);
  font-size: 1.1rem;
}

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

.teacher-links {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.linkedin-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 500;
  transition: all 0.3s ease;
}

.linkedin-link:hover {
  color: var(--accent-color);
  transform: translateY(-2px);
}

.linkedin-link i {
  font-size: 1.2rem;
}

.book-lesson-btn {
  background: var(--primary-color);
  color: #fff;
  border: none;
  padding: 1rem 2rem;
  border-radius: 50px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.book-lesson-btn:hover {
  background: var(--accent-color);
  transform: translateY(-2px);
  box-shadow: 0 10px 25px var(--shadow);
}

.teacher-details {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 2rem;
  margin-bottom: 3rem;
}

/* Without an intro video the Introduction card is omitted, so the About
   card stretches across the full width instead of leaving a hole. */
.teacher-details .teacher-summary-card--wide {
  grid-column: 1 / -1;
}

.teacher-summary-card,
.teacher-bio-card,
.teacher-languages-card,
.teacher-reviews-card {
  background: var(--card-bg);
  border-radius: 15px;
  padding: 2rem;
  box-shadow: 0 5px 20px var(--shadow);
  margin-bottom: 2rem;
}

.teacher-summary-card h2,
.teacher-bio-card h2,
.teacher-languages-card h2,
.teacher-reviews-card h2 {
  color: var(--text-primary);
  margin-bottom: 1.5rem;
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.teacher-summary-card h2::before {
  content: "📋";
  font-size: 1.2rem;
}

.teacher-bio-card h2::before {
  content: "👨‍🏫";
  font-size: 1.2rem;
}

.teacher-languages-card h2::before {
  content: "🌍";
  font-size: 1.2rem;
}

.teacher-reviews-card h2::before {
  content: "⭐";
  font-size: 1.2rem;
}

.summary-content {
  font-size: 1.1rem;
  line-height: 1.7;
  color: var(--text-secondary);
  background: var(--bg-secondary);
  padding: 1.5rem;
  border-radius: 10px;
  border-left: 4px solid var(--primary-color);
  /* Keep line breaks from the bio textarea instead of collapsing them. */
  white-space: pre-line;
}

.bio-content {
  color: var(--text-secondary);
  line-height: 1.7;
}

.bio-content p {
  margin-bottom: 1.5rem;
}

.bio-content ul {
  margin: 1rem 0;
  padding-left: 2rem;
}

.bio-content li {
  margin-bottom: 0.5rem;
  position: relative;
}

.bio-content li::marker {
  color: var(--primary-color);
}

.languages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

.languages-grid .language-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  background: var(--bg-secondary);
  border-radius: 10px;
  transition: transform 0.3s ease;
}

.languages-grid .language-item:hover {
  transform: translateY(-2px);
}

.language-flag {
  font-size: 2rem;
}

.language-info {
  display: flex;
  flex-direction: column;
}

.language-name {
  font-weight: 600;
  color: var(--text-primary);
}

.language-level {
  font-size: 0.875rem;
  padding: 0.25rem 0.75rem;
  border-radius: 15px;
  color: #fff;
  font-weight: 500;
  width: fit-content;
  margin-top: 0.25rem;
}

.language-level.native {
  background: var(--primary-color);
}

.language-level.fluent {
  background: var(--success);
}

.language-level.intermediate {
  background: var(--warning);
  color: #1f2429;
}

.reviews-summary {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
  padding: 1.5rem;
  background: var(--bg-secondary);
  border-radius: 10px;
}

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

.rating-score {
  font-size: 3rem;
  font-weight: bold;
  color: var(--primary-color);
  line-height: 1;
}

.rating-stars {
  color: var(--warning);
  margin: 0.5rem 0;
}

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

.rating-breakdown {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.rating-bar {
  display: grid;
  grid-template-columns: 60px 1fr 40px;
  align-items: center;
  gap: 1rem;
  font-size: 0.875rem;
}

.bar {
  height: 8px;
  background: var(--border-color);
  border-radius: 4px;
  overflow: hidden;
}

.fill {
  height: 100%;
  background: var(--warning);
  transition: width 0.3s ease;
}

.reviews-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.review-item {
  padding: 1.5rem;
  background: var(--bg-secondary);
  border-radius: 10px;
  border-left: 4px solid var(--primary-color);
}

.review-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.reviewer-info {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.reviewer-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
}

.reviewer-name {
  font-weight: 600;
  color: var(--text-primary);
}

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

.review-rating {
  color: var(--warning);
}

.review-content {
  color: var(--text-secondary);
  line-height: 1.6;
}

.teacher-reviews-empty {
  padding: 2.25rem 1.5rem;
  text-align: center;
  display: grid;
  justify-items: center;
  gap: .65rem;
  background: var(--bg-secondary);
  border-radius: 10px;
}

.teacher-reviews-empty .empty-icon {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(32, 77, 72, 0.1);
  color: var(--primary-color);
  font-size: 1.35rem;
}

.teacher-reviews-empty h3,
.teacher-reviews-empty p {
  margin: 0;
}

.teacher-reviews-empty p {
  color: var(--text-secondary);
}

.availability-section {
  background: var(--card-bg);
  border-radius: 20px;
  padding: 2rem;
  box-shadow: 0 10px 30px var(--shadow);
}

.availability-header {
  text-align: center;
  margin-bottom: 2rem;
}

.availability-header h2 {
  color: var(--text-primary);
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.availability-header p {
  color: var(--text-secondary);
  font-size: 1.1rem;
}

.calendar-navigation {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 2rem;
  margin-bottom: 2rem;
}

/* Responsive Design for Teacher Info */
@media (max-width: 1024px) {
  .teacher-header {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 2rem;
  }

  .teacher-details {
    grid-template-columns: 1fr;
  }

  .teacher-credentials {
    justify-content: center;
  }

  .teacher-links {
    justify-content: center;
  }
}

@media (max-width: 768px) {
  .teacher-info-section {
    padding: 1rem 0 2rem;
  }

  .teacher-header,
  .teacher-summary-card,
  .teacher-bio-card,
  .teacher-languages-card,
  .teacher-reviews-card,
  .availability-section {
    padding: 1.5rem;
  }

  .teacher-name {
    font-size: 2rem;
  }

  .teacher-credentials {
    flex-direction: column;
    align-items: center;
    gap: 1rem;
  }
}


.reserve-modal {
  position: fixed;
  inset: 0;
  z-index: 9000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
}

.reserve-modal[hidden] {
  display: none;
}

.reserve-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(13, 22, 35, 0.55);
  backdrop-filter: blur(2px);
}

.reserve-modal__card {
  position: relative;
  width: min(420px, 100%);
  background: var(--surface, #fff);
  color: var(--text, #0d1623);
  border: 1px solid var(--border, rgba(13, 22, 35, 0.12));
  border-radius: 18px;
  padding: 1.6rem 1.5rem 1.4rem;
  box-shadow: var(--shadow-lg, 0 25px 60px rgba(13, 22, 35, 0.28));
  text-align: center;
  animation: reserveModalIn 0.18s ease-out;
}

@keyframes reserveModalIn {
  from { transform: translateY(8px) scale(0.98); opacity: 0; }
  to   { transform: translateY(0)    scale(1);    opacity: 1; }
}

.reserve-modal__x {
  position: absolute;
  top: 0.5rem;
  inset-inline-end: 0.5rem;
  background: transparent;
  border: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  color: var(--text-muted, #5b6878);
  cursor: pointer;
  font-size: 1rem;
  transition: background 0.15s ease, color 0.15s ease;
}

.reserve-modal__x:hover {
  background: var(--surface-2, rgba(13, 22, 35, 0.06));
  color: var(--text, #0d1623);
}

.reserve-modal__x:focus-visible {
  outline: 3px solid var(--ring);
  outline-offset: 2px;
}

.reserve-modal__icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 0.75rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: color-mix(in srgb, var(--primary, #2f7a66) 14%, transparent);
  color: var(--primary, #2f7a66);
  font-size: 1.4rem;
}

.reserve-modal__title {
  margin: 0 0 0.3rem;
  font-size: 1.15rem;
  color: var(--text, #0d1623);
}

.reserve-modal__subtitle {
  margin: 0 0 1rem;
  font-size: 0.92rem;
  color: var(--text-muted, #5b6878);
  line-height: 1.45;
}


.reserve-modal__session-type {
  display: inline-block;
  margin: 0 0 0.75rem;
  padding: 0.3rem 0.75rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-primary, #2f7a66);
  background: color-mix(in srgb, var(--accent-primary, #2f7a66) 10%, transparent);
  border-radius: 999px;
  white-space: nowrap;
}
.reserve-modal__meta {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  margin: 0 0 1.2rem;
  text-align: start;
}

[dir="rtl"] .reserve-modal__meta {
  text-align: right;
}

.reserve-modal__meta > div {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding: 0.55rem 0.8rem;
  background: var(--surface-2, rgba(13, 22, 35, 0.04));
  border-radius: 10px;
}

.reserve-modal__meta > div[hidden] {
  display: none;
}

.reserve-modal__label {
  margin: 0;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted, #5b6878);
}

.reserve-modal__value {
  margin: 0;
  font-weight: 600;
  color: var(--text, #0d1623);
  font-size: 0.98rem;
}

.reserve-modal__select {
  min-width: 7rem;
  border: 1px solid var(--border, rgba(13, 22, 35, 0.14));
  border-radius: 8px;
  background: var(--surface, #fff);
  color: var(--text, #0d1623);
  font: inherit;
  font-weight: 600;
  padding: 0.45rem 0.65rem;
}

[data-theme="dark"] .reserve-modal__select {
  background: #182536;
  border-color: rgba(255, 255, 255, 0.12);
  color: #e8eef3;
}

.reserve-modal__error {
  margin: 0 0 1rem;
  padding: 0.6rem 0.8rem;
  border-radius: 10px;
  background: color-mix(in srgb, var(--danger, #d44c47) 14%, transparent);
  color: var(--danger, #d44c47);
  font-size: 0.88rem;
  font-weight: 600;
}

.reserve-modal__actions {
  display: flex;
  gap: 0.6rem;
}

.reserve-modal__discount {
  margin: 0 0 1rem;
  text-align: start;
}

[dir="rtl"] .reserve-modal__discount {
  text-align: right;
}

.reserve-modal__discount[hidden] {
  display: none;
}

.reserve-modal__discount-row {
  display: flex;
  flex-wrap: nowrap;
  align-items: stretch;
  gap: 0.5rem;
  margin-top: 0.35rem;
}

.reserve-modal__discount-input {
  flex: 1 1 auto;
  width: auto;
  min-width: 0;
  margin-top: 0;
  border: 1px solid var(--border, rgba(13, 22, 35, 0.14));
  border-radius: 8px;
  background: var(--surface, #fff);
  color: var(--text, #0d1623);
  font: inherit;
  padding: 0.55rem 0.7rem;
}

[data-theme="dark"] .reserve-modal__discount-input {
  background: #182536;
  border-color: rgba(255, 255, 255, 0.12);
  color: #e8eef3;
}

.reserve-modal__discount-row .reserve-modal__btn {
  flex: 0 0 auto;
  width: auto;
  min-width: 7rem;
  height: auto;
  min-height: 42px;
  padding: 0 0.9rem;
}

.reserve-modal__discount-error {
  margin: 0.4rem 0 0;
  color: var(--danger, #d44c47);
  font-size: 0.82rem;
  font-weight: 600;
}

.reserve-modal__discount-error[hidden] {
  display: none;
}

.reserve-modal__price--original {
  text-decoration: line-through;
  color: var(--text-muted, #5b6878);
  font-weight: 500;
  margin-inline-end: 0.45rem;
}

.reserve-modal__meta > div[data-saved-row] .reserve-modal__value {
  color: var(--accent-primary, #2f7a66);
}

.reserve-modal__btn {
  flex: 1;
  height: 44px;
  border-radius: 12px;
  border: 0;
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 600;
  transition: transform 0.12s ease, background 0.15s ease, color 0.15s ease, box-shadow 0.15s ease;
}

.reserve-modal__btn:focus-visible {
  outline: 3px solid var(--ring);
  outline-offset: 2px;
}

.reserve-modal__btn:active {
  transform: translateY(1px);
}

.reserve-modal__btn--ghost {
  background: var(--surface-2, rgba(13, 22, 35, 0.06));
  color: var(--text, #0d1623);
}

.reserve-modal__btn--ghost:hover {
  background: color-mix(in srgb, var(--text, #0d1623) 10%, transparent);
}

.reserve-modal__btn--primary {
  background: var(--primary, #2f7a66);
  color: var(--on-primary, #fff);
}

.reserve-modal__btn--primary:hover {
  background: var(--primary-hover, var(--primary, #2f7a66));
}

.reserve-modal__btn[disabled] {
  opacity: 0.65;
  cursor: progress;
}

/* ===================================================================
 *  JS-built Session Tabs (.calendar-tabs)
 *  Matches the look of the old .session-type-tabs/.session-tab
 * =================================================================== */
.calendar-tabs {
  display: flex;
  gap: 4px;
  padding: 4px;
  background: var(--surface-2, var(--bg-secondary));
  border-radius: var(--radius-lg, 12px);
  border: 1px solid var(--border-color);
  margin-bottom: var(--space-5, 1.5rem);
}

.calendar-tabs__tab {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2, 0.5rem);
  padding: 0.55rem 1.25rem;
  border: none;
  border-radius: calc(var(--radius-lg, 12px) - 4px);
  background: transparent;
  color: var(--text-secondary);
  font: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
  user-select: none;
}

.calendar-tabs__tab:hover {
  background: var(--surface-2);
  color: var(--text-primary);
}

.calendar-tabs__tab:focus-visible {
  outline: 2px solid var(--primary, var(--accent-primary));
  outline-offset: -2px;
  z-index: 1;
}

.calendar-tabs__tab[aria-selected="true"],
.calendar-tabs__tab[aria-selected="true"]:hover {
  background: var(--card-bg);
  color: var(--accent-primary);
  box-shadow: 0 1px 3px var(--shadow), 0 2px 8px color-mix(in srgb, var(--shadow) 40%, transparent);
}

[data-theme="dark"] .calendar-tabs__tab[aria-selected="true"],
[data-theme="dark"] .calendar-tabs__tab[aria-selected="true"]:hover {
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 2px 6px rgba(0, 0, 0, 0.3);
}

/* ===================================================================
 *  JS-built Package Panel (.calendar-packages)
 * =================================================================== */
.calendar-packages {
  margin-bottom: var(--space-5, 1.5rem);
  padding: var(--space-5, 1.5rem);
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg, 14px);
}

.calendar-packages__title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 var(--space-4, 1rem);
  display: flex;
  align-items: center;
  gap: var(--space-2, 0.5rem);
}

.calendar-packages__title i {
  color: var(--accent-primary);
}

.calendar-packages__credits {
  margin-bottom: var(--space-4, 1rem);
  padding: var(--space-3, 0.75rem) var(--space-4, 1rem);
  background: color-mix(in srgb, var(--accent-primary) 8%, transparent);
  border-radius: var(--radius, 8px);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-primary);
}

.calendar-packages__options {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3, 0.75rem);
}

.calendar-packages__option {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2, 0.5rem);
  padding: var(--space-4, 1rem);
  background: var(--surface-2, var(--bg-secondary));
  border: 1px solid transparent;
  border-radius: var(--radius, 8px);
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.calendar-packages__option:hover {
  border-color: var(--accent-primary);
  background: color-mix(in srgb, var(--accent-primary) 6%, var(--surface-2, var(--bg-secondary)));
}

.calendar-packages__sessions {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
}

.calendar-packages__price {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent-primary);
}

.calendar-packages__free {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--success, #2d9b73);
}

.calendar-packages__discount {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--success, #2d9b73);
  background: color-mix(in srgb, var(--success, #2d9b73) 12%, transparent);
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  white-space: nowrap;
}

.calendar-packages__buy {
  margin-top: auto;
  padding: 0.45rem 1.25rem;
  font-size: 0.85rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius, 8px);
  background: var(--accent-primary);
  color: var(--on-primary, #fff);
  cursor: pointer;
  transition: opacity 0.2s ease;
}

.calendar-packages__buy:hover {
  opacity: 0.88;
}

@media (max-width: 640px) {
  .calendar-packages__options {
    grid-template-columns: 1fr;
  }
}