/* Main Styles - Global Layout and Components */

:root {
  /* Color System */
  --color-primary: #3b82f6;
  --color-primary-dark: #2563eb;
  --color-primary-light: #93c5fd;
  
  --color-secondary: #14b8a6;
  --color-secondary-dark: #0f766e;
  --color-secondary-light: #5eead4;
  
  --color-accent: #f97316;
  --color-accent-dark: #ea580c;
  --color-accent-light: #fdba74;
  
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-error: #ef4444;
  
  /* Neutral Colors */
  --color-gray-50: #f9fafb;
  --color-gray-100: #f3f4f6;
  --color-gray-200: #e5e7eb;
  --color-gray-300: #d1d5db;
  --color-gray-400: #9ca3af;
  --color-gray-500: #6b7280;
  --color-gray-600: #4b5563;
  --color-gray-700: #374151;
  --color-gray-800: #1f2937;
  --color-gray-900: #111827;
  
  /* Background Colors */
  --bg-primary: #ffffff;
  --bg-secondary: var(--color-gray-50);
  --bg-surface: var(--color-gray-100);
  
  /* Text Colors */
  --text-primary: var(--color-gray-900);
  --text-secondary: var(--color-gray-700);
  --text-muted: var(--color-gray-500);
  
  /* Border Colors */
  --border-light: var(--color-gray-200);
  --border-medium: var(--color-gray-300);
  
  /* Spacing System (8px base) */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  
  /* Typography */
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  
  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  
  /* Transitions */
  --transition-fast: 0.15s ease-out;
  --transition-normal: 0.25s ease-out;
  --transition-slow: 0.35s ease-out;
}

/* Dark Mode Colors */
[data-theme="dark"] {
  --bg-primary: var(--color-gray-900);
  --bg-secondary: var(--color-gray-800);
  --bg-surface: var(--color-gray-700);
  
  --text-primary: var(--color-gray-100);
  --text-secondary: var(--color-gray-300);
  --text-muted: var(--color-gray-400);
  
  --border-light: var(--color-gray-700);
  --border-medium: var(--color-gray-600);
}

/* RTL Support */
.rtl {
  direction: rtl;
  text-align: right;
}

.rtl .nav-left {
  order: 3;
}

.rtl .nav-center {
  order: 2;
}

.rtl .nav-right {
  order: 1;
}

.rtl .nav-left .logo img {
  margin-right: 0;
  margin-left: 10px;
}

.rtl .feature-card,
.rtl .footer-content,
.rtl .hero {
  text-align: center;
}

/* RTL text for typing practice */
.rtl-text {
  direction: rtl;
  text-align: right;
}

.rtl-text #typingText,
.rtl-text #typingInput {
  text-align: right;
  font-family: 'Tahoma', 'Arial', sans-serif;
}

/* Arabic font optimization */
.lang-ar {
  font-family: 'Tahoma', 'Arial', sans-serif;
}

.lang-ar #typingText,
.lang-ar #typingInput {
  line-height: 1.6;
  letter-spacing: 0;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: 'Noto Sans', sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: var(--space-md);
}

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

p {
  margin-bottom: var(--space-md);
  line-height: 1.6;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-sm);
}

/* Header */
.header {
  background-color: var(--bg-primary);
  border-bottom: 1px solid var(--border-light);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
  height: 80px;
  display: flex;
  align-items: center;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-sm) var(--space-md);
  max-width: 100%;
  width: 100%;
  margin: 0 auto;
  height: 100%;
}

.nav-left .logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  margin: 0;
}

.nav-left .logo img {
  height: 40px;
  margin-right: 10px;
}

.nav-left .logo-text {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-primary);
}

.nav-center {
  display: flex;
  gap: var(--space-md);
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

/* Hero button specific styling */
.hero-buttons .nav-link {
  background-color: var(--color-primary);
  color: white;
  font-weight: 600;
  font-size: var(--font-size-lg);
  padding: var(--space-md) var(--space-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  z-index: 1;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(59, 130, 246, 0.4);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(59, 130, 246, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(59, 130, 246, 0);
  }
}

.hero-buttons .nav-link:hover {
  background-color: var(--color-primary-dark);
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  animation-play-state: paused;
}

.hero-buttons .nav-link:active {
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

/* Alternate colors for second and third buttons */
.hero-buttons .nav-link:nth-child(2) {
  background-color: var(--color-secondary);
  animation: pulse-secondary 2s infinite;
}

.hero-buttons .nav-link:nth-child(2):hover {
  background-color: var(--color-secondary-dark);
}

.hero-buttons .nav-link:nth-child(3) {
  background-color: var(--color-accent);
  animation: pulse-accent 2s infinite;
}

.hero-buttons .nav-link:nth-child(3):hover {
  background-color: var(--color-accent-dark);
}

@keyframes pulse-secondary {
  0% {
    box-shadow: 0 0 0 0 rgba(20, 184, 166, 0.4);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(20, 184, 166, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(20, 184, 166, 0);
  }
}

@keyframes pulse-accent {
  0% {
    box-shadow: 0 0 0 0 rgba(249, 115, 22, 0.4);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(249, 115, 22, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(249, 115, 22, 0);
  }
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-primary);
  background-color: var(--color-primary-light);
  background-color: rgba(59, 130, 246, 0.1);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.language-select {
  padding: clamp(0.15rem, 0.75vw, 0.35rem) clamp(0.35rem, 1.5vw, 0.75rem);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-size: clamp(0.75rem, 1.5vw, 0.875rem);
  cursor: pointer;
  transition: all var(--transition-fast);
  min-width: 70px;
}

.language-select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.theme-toggle {
  background: none;
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  padding: clamp(0.15rem, 0.75vw, 0.35rem);
  cursor: pointer;
  font-size: clamp(0.9rem, 1.8vw, 1.15rem);
  transition: all var(--transition-fast);
  min-width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.theme-toggle:hover {
  background-color: var(--bg-surface);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-xs) var(--space-md);
  font-size: var(--font-size-base);
  font-weight: 500;
  text-decoration: none;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  min-height: 38px;
}

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

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

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

.btn-secondary:hover {
  background-color: var(--color-secondary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

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

.btn-accent:hover {
  background-color: var(--color-accent-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

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

.btn-danger:hover {
  background-color: #dc2626;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-secondary-light) 100%);
  padding: clamp(1.5rem, 6vh, 3rem) 0;
  text-align: center;
}

.hero-content {
  max-width: min(800px, 90vw);
  margin: 0 auto;
  padding: 0 var(--space-sm);
}

.hero-title {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  color: var(--color-gray-900);
  margin-bottom: var(--space-sm);
}

.hero-subtitle {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: var(--color-gray-700);
  margin-bottom: var(--space-lg);
  line-height: 1.6;
}

.hero-buttons {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
  align-items: center;
}

/* Features Section */
.features {
  padding: clamp(1.5rem, 4vh, 3rem) 0;
  background-color: var(--bg-secondary);
}

.section-title {
  text-align: center;
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-bottom: var(--space-lg);
  color: var(--text-primary);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: clamp(0.5rem, 1.5vw, 1rem);
  align-items: start;
}

.feature-card {
  background-color: var(--bg-primary);
  padding: clamp(0.5rem, 2vw, 1.25rem);
  border-radius: var(--radius-lg);
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.feature-icon {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  margin-bottom: var(--space-sm);
  display: block;
}

.feature-card h3 {
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

.feature-card p {
  color: var(--text-secondary);
  margin-bottom: 0;
}

/* Footer */
.footer {
  background-color: var(--bg-surface);
  height: 50px; /* Further reduced fixed height */
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: var(--space-lg);
}

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

.footer-links {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
  margin-bottom: var(--space-sm);
  flex-wrap: wrap;
  align-items: center;
}

.footer-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: clamp(0.75rem, 1.5vw, 0.875rem);
  transition: color var(--transition-fast);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
}

.footer-link:hover {
  color: var(--color-primary);
  background-color: var(--bg-surface);
}

.footer-text {
  color: var(--text-muted);
  font-size: clamp(0.75rem, 1.5vw, 0.875rem);
  margin: 0;
}

/* Page Layout */
.page-main {
  min-height: calc(100vh - 80px);
  padding: var(--space-md) 0;
}

/* Adaptive page layout */
@media (max-height: 700px) {
  .page-main {
    min-height: calc(100vh - 60px);
    padding: var(--space-xs) 0;
  }
  
  .header {
    height: 60px;
  }
}

@media (min-height: 900px) {
  .page-main {
    padding: var(--space-lg) 0;
  }
}

.page-title {
  text-align: center;
  margin-bottom: var(--space-lg);
  color: var(--text-primary);
  font-size: clamp(1.5rem, 3vw, 2rem);
}

.content-section {
  margin-bottom: var(--space-md);
}

.content-section h3 {
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
}

.content-section p,
.content-section li {
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Forms */
.form-group {
  margin-bottom: var(--space-sm);
}

.form-group label {
  display: block;
  margin-bottom: calc(var(--space-xs) / 2);
  font-weight: 500;
  color: var(--text-primary);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: var(--space-sm);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-size: var(--font-size-base);
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-textarea {
  resize: vertical;
  min-height: 100px;
}

/* Lists */
.feature-list {
  list-style: none;
  padding-left: 0;
}

.feature-list li {
  padding: var(--space-xs) 0;
  padding-left: var(--space-xl);
  position: relative;
}

.feature-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-success);
  font-weight: bold;
}

.terms-list {
  list-style: none;
  padding-left: 0;
}

.terms-list li {
  padding: var(--space-sm) 0;
  padding-left: var(--space-xl);
  position: relative;
  color: var(--text-secondary);
}

.terms-list li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: bold;
}

/* Error 404 */
.error-404 {
  text-align: center;
  padding: var(--space-3xl) 0;
}

.error-icon {
  font-size: 4rem;
  margin-bottom: var(--space-lg);
}

.error-404 h2 {
  color: var(--text-primary);
  margin-bottom: var(--space-md);
}

.error-404 p {
  color: var(--text-secondary);
  margin-bottom: var(--space-xl);
  font-size: var(--font-size-lg);
}

/* Language-specific fonts */
.lang-hi,
.lang-hi * {
  font-family: 'Noto Sans Devanagari', 'Noto Sans', sans-serif !important;
}

.lang-ar,
.lang-ar *,
.lang-ur,
.lang-ur * {
  font-family: 'Noto Sans Arabic', 'Noto Sans', sans-serif !important;
  direction: rtl;
}

.lang-zh,
.lang-zh * {
  font-family: 'Noto Sans SC', 'Noto Sans', sans-serif !important;
}

.lang-ja,
.lang-ja * {
  font-family: 'Noto Sans JP', 'Noto Sans', sans-serif !important;
}

.lang-ko,
.lang-ko * {
  font-family: 'Noto Sans KR', 'Noto Sans', sans-serif !important;
}

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

.hidden { display: none !important; }
.visible { display: block !important; }

.fade-in {
  animation: fadeIn 0.3s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.slide-up {
  animation: slideUp 0.3s ease-out;
}

@keyframes slideUp {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* Contact Specific */
.contact-content {
  max-width: 600px;
  margin: 0 auto;
}

.contact-info {
  background-color: var(--bg-surface);
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-xl);
  text-align: center;
}

.contact-item {
  margin: var(--space-md) 0;
  color: var(--text-secondary);
}

.contact-form {
  background-color: var(--bg-primary);
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

/* Language Grid */
.languages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-sm);
  margin: var(--space-md) 0;
  align-items: stretch;
}

.language-item {
  background-color: var(--bg-surface);
  padding: var(--space-sm);
  border-radius: var(--radius-md);
  text-align: center;
  font-weight: 500;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
}

.language-item:hover {
  background-color: var(--color-primary-light);
  background-color: rgba(59, 130, 246, 0.1);
  transform: translateY(-2px);
}

/* Modal Base */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 1000;
  backdrop-filter: blur(4px);
}

.modal.show {
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.3s ease-out;
}

.modal-content {
  background-color: var(--bg-primary);
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  max-width: 500px;
  width: 90%;
  max-height: 80vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  animation: slideUp 0.3s ease-out;
}

.modal-buttons {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  margin-top: var(--space-lg);
  flex-wrap: wrap;
}

/* Achievement Toast */
.achievement-toast {
  position: fixed;
  top: 100px;
  right: var(--space-lg);
  background-color: var(--color-success);
  color: white;
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  z-index: 1001;
  transform: translateX(400px);
  transition: all var(--transition-normal);
}

.achievement-toast.show {
  transform: translateX(0);
}

.achievement-content {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: 500;
}

.achievement-icon {
  font-size: var(--font-size-lg);
}
/* Language-specific pages section */
.language-pages {
  padding: 3rem 0;
  background-color: var(--bg-secondary);
}

.language-pages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.language-card {
  background-color: var(--bg-primary);
  border-radius: 8px;
  padding: 1.5rem;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.language-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
}

.language-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.language-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.language-links {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.language-link {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s ease;
  padding: 0.5rem 0;
}

.language-link:hover {
  color: var(--accent-color);
  text-decoration: underline;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .language-pages-grid {
    grid-template-columns: 1fr;
  }
}