/* Modern Mobile-First CSS for Calligraphy App */

/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* Mobile-First Responsive Design */
html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--primary-font);
  background-color: var(--paper-color);
  color: var(--text-color);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Container Improvements */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 15px;
}

@media (min-width: 576px) {
  .container {
    padding: 0 20px;
  }
}

@media (min-width: 768px) {
  .container {
    padding: 0 30px;
  }
}

/* Modern Course Grid */
.course-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin: 2rem 0;
}

@media (min-width: 576px) {
  .course-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
  }
}

@media (min-width: 992px) {
  .course-grid {
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2.5rem;
  }
}

/* Enhanced Course Cards */
.course-card {
  background: var(--paper-dark);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid var(--border-color);
  position: relative;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.course-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
  border-color: var(--accent-gold);
}

.course-card-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: transform 0.3s ease;
}

@media (min-width: 768px) {
  .course-card-img {
    height: 220px;
  }
}

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

.course-card-body {
  padding: 1.5rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.course-card-title {
  font-family: 'Vazirmatn', serif;
  font-weight: 600;
  font-size: 1.2rem;
  color: var(--primary-color);
  margin-bottom: 1rem;
  line-height: 1.4;
}

@media (min-width: 768px) {
  .course-card-title {
    font-size: 1.3rem;
  }
}

.course-card-text {
  color: var(--text-color);
  margin-bottom: 1.5rem;
  flex-grow: 1;
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Course Statistics */
.course-stats {
  display: flex;
  justify-content: space-between;
  margin-bottom: 1rem;
  padding: 0.75rem;
  background-color: var(--light-bg);
  border-radius: 8px;
  border: 1px solid var(--border-color);
}

.course-stat {
  display: flex;
  align-items: center;
  font-size: 0.85rem;
  color: var(--text-muted);
  gap: 0.5rem;
}

.course-stat i {
  color: var(--accent-color);
  font-size: 0.9rem;
}

.course-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 1.5rem;
  background-color: var(--form-bg);
  border-top: 1px solid var(--border-color);
}

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

/* Course Ribbon for Free Videos */
.course-ribbon {
  position: absolute;
  top: 10px;
  right: 10px;
  z-index: 10;
}

.ribbon-text {
  background: linear-gradient(135deg, var(--accent-gold), var(--accent-color));
  color: var(--primary-color);
  padding: 0.4rem 0.8rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.ribbon-text i {
  font-size: 0.9rem;
}

/* Hero Section Improvements */
.hero-section {
  position: relative;
  padding: 3rem 0;
  background: linear-gradient(135deg, var(--light-bg) 0%, var(--paper-dark) 100%);
  border-radius: 20px;
  overflow: hidden;
  margin-bottom: 3rem;
  text-align: center;
}

@media (min-width: 768px) {
  .hero-section {
    padding: 5rem 0;
  }
}

.hero-content {
  position: relative;
  z-index: 10;
}

.hero-title {
  font-family: 'Vazirmatn', serif;
  font-weight: 700;
  font-size: 1.8rem;
  color: var(--primary-color);
  margin-bottom: 1.5rem;
  line-height: 1.3;
}

@media (min-width: 576px) {
  .hero-title {
    font-size: 2.2rem;
  }
}

@media (min-width: 768px) {
  .hero-title {
    font-size: 2.5rem;
  }
}

.hero-subtitle {
  font-size: 1rem;
  color: var(--text-color);
  margin-bottom: 2rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.6;
}

@media (min-width: 768px) {
  .hero-subtitle {
    font-size: 1.2rem;
  }
}

/* Page Headers */
.page-header {
  padding: 2.5rem 0;
  margin-bottom: 2rem;
  background: var(--paper-dark);
  border-radius: 16px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

@media (min-width: 768px) {
  .page-header {
    padding: 3.5rem 0;
  }
}

.page-title {
  font-size: 1.8rem;
  color: var(--primary-color);
  margin-bottom: 1rem;
  font-weight: 700;
}

@media (min-width: 768px) {
  .page-title {
    font-size: 2.5rem;
  }
}

.page-subtitle {
  color: var(--text-muted);
  font-size: 1rem;
  max-width: 600px;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .page-subtitle {
    font-size: 1.2rem;
  }
}

/* Social Icons in Header */
.social-icons-header {
  position: absolute;
  top: 1rem;
  left: 1rem;
  display: flex;
  gap: 0.5rem;
  z-index: 10;
}

.social-icon-header {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--accent-gold);
  color: var(--primary-color);
  border-radius: 50%;
  transition: all 0.3s ease;
  text-decoration: none;
}

.social-icon-header:hover {
  background: var(--primary-color);
  color: var(--accent-gold);
  transform: translateY(-2px);
}

/* Mobile Social Icons Adjustments */
@media (max-width: 768px) {
  .social-icons-header {
    position: static;
    justify-content: center;
    margin-bottom: 1.5rem;
    gap: 1rem;
    order: -1; /* Move before the main content */
  }
  
  .social-icon-header {
    width: 45px;
    height: 45px;
    font-size: 1.1rem;
  }
}

@media (max-width: 480px) {
  .social-icons-header {
    margin-bottom: 1rem;
    gap: 0.75rem;
  }
  
  .social-icon-header {
    width: 42px;
    height: 42px;
    font-size: 1rem;
  }
}

/* Pen Decoration */
.pen-decoration {
  color: var(--accent-gold);
  font-size: 2rem;
  margin: 1rem 0;
}

/* Button Improvements */
.btn {
  padding: 0.7rem 1.5rem;
  border-radius: 25px;
  font-weight: 500;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 0.95rem;
  min-height: 44px; /* Better touch target */
}

.btn:hover {
  transform: translateY(-2px);
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  color: var(--light-text);
  box-shadow: 0 4px 15px rgba(43, 29, 14, 0.3);
}

.btn-primary:hover {
  box-shadow: 0 6px 20px rgba(43, 29, 14, 0.4);
  color: var(--light-text);
}

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

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

.btn-gold {
  background: linear-gradient(135deg, var(--accent-gold), #e6b84d);
  color: var(--primary-color);
  box-shadow: 0 4px 15px rgba(212, 167, 70, 0.3);
}

.btn-gold:hover {
  box-shadow: 0 6px 20px rgba(212, 167, 70, 0.4);
  color: var(--primary-color);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
  min-height: 36px;
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.1rem;
  min-height: 52px;
}

/* Form Improvements */
.form-control, .form-select {
  padding: 0.75rem 1rem;
  border: 2px solid var(--border-color);
  border-radius: 8px;
  background: var(--form-bg);
  color: var(--text-color);
  font-size: 1rem;
  transition: all 0.3s ease;
  min-height: 48px; /* Better touch target */
}

.form-control:focus, .form-select:focus {
  border-color: var(--accent-gold);
  box-shadow: 0 0 0 3px rgba(212, 167, 70, 0.1);
  outline: none;
  background: var(--light-bg);
}

.form-label {
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: 0.5rem;
  font-size: 0.95rem;
}

/* Navigation Improvements */
.navbar-toggler {
  border: none;
  padding: 0.5rem;
  border-radius: 8px;
}

.navbar-toggler:focus {
  box-shadow: none;
}

/* Responsive Grid Layouts */
.row {
  margin-left: -15px;
  margin-right: -15px;
}

.row > * {
  padding-left: 15px;
  padding-right: 15px;
}

/* Card Enhancements */
.card {
  background: var(--paper-dark);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  margin-bottom: 1.5rem;
}

.card-header {
  background: var(--light-bg);
  border-bottom: 1px solid var(--border-color);
  padding: 1.25rem;
  border-radius: 12px 12px 0 0;
}

.card-body {
  padding: 1.5rem;
}

/* Alert Improvements */
.alert {
  border: none;
  border-radius: 10px;
  padding: 1rem 1.25rem;
  margin-bottom: 1.5rem;
  border-left: 4px solid;
}

.alert-success {
  background: rgba(40, 167, 69, 0.1);
  border-left-color: var(--success-color);
  color: var(--success-color);
}

.alert-info {
  background: rgba(32, 130, 122, 0.1);
  border-left-color: var(--turquoise);
  color: var(--turquoise);
}

.alert-warning {
  background: rgba(212, 167, 70, 0.1);
  border-left-color: var(--accent-gold);
  color: var(--accent-color);
}

.alert-danger {
  background: rgba(225, 77, 42, 0.1);
  border-left-color: #e14d2a;
  color: #e14d2a;
}

/* Filter Section */
.filters-container {
  background: var(--paper-dark);
  padding: 1.5rem;
  border-radius: 12px;
  margin-bottom: 2rem;
  border: 1px solid var(--border-color);
}

.filter-btn {
  background: var(--light-bg);
  border: 1px solid var(--border-color);
  color: var(--text-color);
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-size: 0.9rem;
  transition: all 0.3s ease;
  cursor: pointer;
  margin: 0.25rem;
}

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

/* Empty State */
.empty-state {
  text-align: center;
  padding: 3rem 2rem;
  color: var(--text-muted);
}

.empty-state-icon {
  font-size: 3rem;
  color: var(--accent-gold);
  margin-bottom: 1.5rem;
}

.empty-state-title {
  font-size: 1.5rem;
  color: var(--primary-color);
  margin-bottom: 1rem;
}

/* Utility Classes */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mt-5 { margin-top: 3rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.mb-5 { margin-bottom: 3rem; }

.p-1 { padding: 0.5rem; }
.p-2 { padding: 1rem; }
.p-3 { padding: 1.5rem; }
.p-4 { padding: 2rem; }
.p-5 { padding: 3rem; }

/* Responsive Utilities */
@media (max-width: 767px) {
  .d-md-none { display: none !important; }
  .d-sm-block { display: block !important; }
}

@media (min-width: 768px) {
  .d-md-block { display: block !important; }
  .d-sm-none { display: none !important; }
}

/* Print Styles */
@media print {
  .course-card {
    break-inside: avoid;
    margin-bottom: 1rem;
  }
  
  .btn {
    display: none;
  }
  
  .navbar {
    display: none;
  }
}  

/* Enhanced Mobile Navigation and Layout Improvements */

/* Mobile-First Navigation Enhancements */
@media (max-width: 992px) {
  /* Improve mobile navigation layout */
  .navbar-collapse {
    background-color: var(--paper-dark);
    border-radius: 12px;
    padding: 1.5rem;
    margin-top: 1rem;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    border: 1px solid var(--border-color);
  }

  .navbar-toggler {
    padding: 0.5rem 0.75rem;
    font-size: 1.25rem;
    border: 2px solid var(--accent-gold);
    border-radius: 8px;
    background-color: var(--paper-dark);
    color: var(--primary-color);
    transition: all 0.3s ease;
  }

  .navbar-toggler:focus {
    box-shadow: 0 0 0 0.25rem rgba(212, 167, 70, 0.25);
    outline: none;
  }

  .navbar-toggler:hover {
    background-color: var(--accent-gold);
    color: var(--primary-color);
  }

  /* Mobile Navigation Items */
  .navbar-nav {
    width: 100%;
  }

  .nav-item {
    margin: 0.3rem 0;
    width: 100%;
  }

  .nav-link {
    padding: 1rem 1.5rem !important;
    margin: 0 !important;
    border-radius: 10px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: flex-start !important;
    width: 100% !important;
    background-color: var(--light-bg) !important;
    border: 1px solid var(--border-color) !important;
    font-size: 1rem !important;
    font-weight: 500 !important;
    transition: all 0.3s ease !important;
    color: var(--text-color) !important;
    text-decoration: none !important;
    min-height: 52px !important;
  }

  .nav-link i {
    margin-left: 0.75rem;
    font-size: 1.1rem;
    color: var(--accent-color);
    width: 20px;
    text-align: center;
    flex-shrink: 0;
  }

  .nav-link:hover,
  .nav-link:focus {
    background-color: var(--accent-gold) !important;
    color: var(--primary-color) !important;
    border-color: var(--accent-gold) !important;
    transform: translateX(-3px) !important;
    text-decoration: none !important;
  }

  .nav-link:hover i,
  .nav-link:focus i {
    color: var(--primary-color) !important;
  }

  /* Special styling for admin dashboard link */
  .admin-dashboard-link {
    background-color: var(--primary-color) !important;
    color: var(--light-text) !important;
    border-color: var(--primary-color) !important;
  }

  .admin-dashboard-link:hover,
  .admin-dashboard-link:focus {
    background-color: var(--accent-color) !important;
    color: var(--light-text) !important;
    border-color: var(--accent-color) !important;
  }

  .admin-dashboard-link i {
    color: var(--light-text) !important;
  }

  .admin-dashboard-link:hover i,
  .admin-dashboard-link:focus i {
    color: var(--light-text) !important;
  }
}

@media (max-width: 768px) {
  /* Enhanced mobile styles for small tablets and phones */
  
  /* Container improvements */
  .container {
    padding-left: 15px;
    padding-right: 15px;
  }

  /* Navigation improvements */
  .navbar-collapse {
    padding: 1.25rem;
    margin-top: 0.75rem;
  }

  .nav-link {
    padding: 0.875rem 1.25rem !important;
    font-size: 0.95rem !important;
    min-height: 50px !important;
  }

  .nav-link i {
    font-size: 1rem;
    margin-left: 0.5rem;
  }

  /* Course grid improvements */
  .course-grid {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

  /* Course card improvements */
  .course-card {
    margin-bottom: 1.25rem;
  }

  .course-card-body {
    padding: 1.25rem;
  }

  .course-card-footer {
    padding: 1rem 1.25rem;
  }

  .course-card-title {
    font-size: 1.1rem;
    line-height: 1.4;
  }

  .course-card-text {
    font-size: 0.95rem;
    line-height: 1.6;
  }

  /* Button improvements */
  .btn {
    padding: 0.875rem 1.5rem;
    font-size: 1rem;
    min-height: 50px;
    border-radius: 8px;
  }

  .btn-sm {
    padding: 0.625rem 1rem;
    font-size: 0.9rem;
    min-height: 42px;
  }

  .btn-lg {
    padding: 1rem 2rem;
    font-size: 1.1rem;
    min-height: 56px;
  }

  /* Form improvements */
  .form-control, .form-select {
    padding: 0.875rem 1rem;
    font-size: 16px; /* Prevents zoom on iOS */
    min-height: 50px;
    border-radius: 8px;
  }

  .form-label {
    font-size: 1rem;
    margin-bottom: 0.5rem;
  }

  /* Hero section improvements */
  .hero-section {
    padding: 2.5rem 0;
    margin-bottom: 2rem;
  }

  .hero-title {
    font-size: 1.8rem;
    margin-bottom: 1.25rem;
  }

  .hero-subtitle {
    font-size: 1rem;
    margin-bottom: 1.5rem;
  }

  /* Page header improvements */
  .page-header {
    padding: 2rem 0;
    margin-bottom: 1.5rem;
  }

  .page-title {
    font-size: 1.8rem;
    margin-bottom: 0.75rem;
  }

  .page-subtitle {
    font-size: 1rem;
  }
}

@media (max-width: 480px) {
  /* Extra small screens - portrait phones */
  
  /* Container adjustments */
  .container {
    padding-left: 10px;
    padding-right: 10px;
  }

  /* Navigation for very small screens */
  .navbar-collapse {
    padding: 1rem;
    margin-top: 0.5rem;
  }

  .nav-link {
    padding: 0.75rem 1rem !important;
    font-size: 0.95rem !important;
    min-height: 48px !important;
  }

  .nav-link i {
    font-size: 0.95rem;
    margin-left: 0.5rem;
  }

  /* Course grid for very small screens */
  .course-grid {
    gap: 1rem;
    margin: 1.5rem 0;
  }

  .course-card-body {
    padding: 1rem;
  }

  .course-card-footer {
    padding: 0.875rem 1rem;
  }

  .course-card-title {
    font-size: 1rem;
  }

  .course-card-text {
    font-size: 0.9rem;
  }

  /* Button adjustments */
  .btn {
    padding: 0.75rem 1.25rem;
    font-size: 0.95rem;
    min-height: 48px;
  }

  .btn-sm {
    padding: 0.5rem 0.875rem;
    font-size: 0.85rem;
    min-height: 40px;
  }

  /* Form adjustments */
  .form-control, .form-select {
    padding: 0.75rem 1rem;
    font-size: 16px;
    min-height: 48px;
  }

  /* Typography adjustments */
  .hero-title {
    font-size: 1.6rem;
  }

  .hero-subtitle {
    font-size: 0.95rem;
  }

  .page-title {
    font-size: 1.5rem;
  }

  .page-subtitle {
    font-size: 0.95rem;
  }

  .section-title {
    font-size: 1.3rem;
  }

  /* Spacing adjustments for very small screens */
  .py-5 {
    padding-top: 2rem !important;
    padding-bottom: 2rem !important;
  }

  .mt-5 {
    margin-top: 2rem !important;
  }

  .mb-5 {
    margin-bottom: 2rem !important;
  }

  .hero-section {
    padding: 2rem 0;
    margin-bottom: 1.5rem;
  }

  .page-header {
    padding: 1.5rem 0;
    margin-bottom: 1.25rem;
  }
}

/* Landscape orientation adjustments */
@media (max-width: 767px) and (orientation: landscape) {
  .navbar-collapse {
    max-height: 70vh;
    overflow-y: auto;
  }

  .hero-section {
    padding: 1.5rem 0;
  }

  .page-header {
    padding: 1.5rem 0;
  }
}

/* Touch device optimizations */
@media (hover: none) and (pointer: coarse) {
  /* Touch-specific styles */
  .btn:hover {
    transform: none; /* Disable hover transforms on touch devices */
  }

  .course-card:hover {
    transform: none;
  }

  .nav-link:hover {
    transform: none !important;
  }

  /* Increase touch targets */
  .btn {
    min-height: 48px;
    padding: 0.75rem 1.5rem;
  }

  .form-control, .form-select {
    min-height: 48px;
  }

  .nav-link {
    min-height: 52px !important;
  }
}

/* High resolution displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  /* Optimize for retina displays */
  .course-card-img {
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
  }

  .btn {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }
}