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

body {
  font-family: "Cairo", sans-serif;
  line-height: 1.6;
  color: #333;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
}

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

/* Header */
.header {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo i {
  font-size: 2rem;
  color: #667eea;
}

.logo h1 {
  font-size: 1.5rem;
  font-weight: 700;
  color: #333;
}

.nav {
  display: flex;
  gap: 2rem;
}

.nav-link {
  text-decoration: none;
  color: #666;
  font-weight: 500;
  transition: color 0.3s ease;
  position: relative;
}

.nav-link:hover,
.nav-link.active {
  color: #667eea;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: #667eea;
  transition: width 0.3s ease;
}

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

/* Hero Section */
.hero {
  padding: 120px 0 80px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  text-align: center;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-content {
  text-align: right;
}

.hero-title {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 1rem;
  line-height: 1.2;
}

.hero-description {
  font-size: 1.2rem;
  margin-bottom: 2rem;
  opacity: 0.9;
}

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

.hero-image {
  display: flex;
  justify-content: center;
  align-items: center;
}

.video-preview {
  background: rgba(255, 255, 255, 0.1);
  border: 2px dashed rgba(255, 255, 255, 0.3);
  border-radius: 20px;
  padding: 3rem;
  text-align: center;
  backdrop-filter: blur(10px);
}

.video-preview i {
  font-size: 4rem;
  margin-bottom: 1rem;
  opacity: 0.8;
}

.video-preview span {
  font-size: 1.1rem;
  opacity: 0.9;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 12px 24px;
  border: none;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.3s ease;
  font-family: "Cairo", sans-serif;
}

.btn-primary {
  background: linear-gradient(45deg, #667eea, #764ba2);
  color: white;
  box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.2);
  color: white;
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.3);
  border-color: rgba(255, 255, 255, 0.5);
}

.btn-large {
  padding: 16px 32px;
  font-size: 1.1rem;
}

.btn-success {
  background: linear-gradient(45deg, #28a745, #20c997);
  color: white;
  box-shadow: 0 4px 15px rgba(40, 167, 69, 0.4);
}

.btn-success:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(40, 167, 69, 0.6);
}

.btn-debug {
  background: linear-gradient(45deg, #6c757d, #495057);
  color: white;
  font-size: 0.9rem;
  padding: 8px 16px;
  margin: 0.25rem;
  box-shadow: 0 2px 8px rgba(108, 117, 125, 0.3);
}

.btn-debug:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(108, 117, 125, 0.5);
}

.error-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  margin-top: 1rem;
}

/* Upload Section */
.upload-section {
  padding: 80px 0;
  background: white;
}

.upload-container {
  max-width: 800px;
  margin: 0 auto;
  background: white;
  border-radius: 20px;
  padding: 3rem;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 1rem;
  color: #333;
}

.section-description {
  text-align: center;
  color: #666;
  margin-bottom: 3rem;
  font-size: 1.1rem;
}

.upload-form {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

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

.form-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  color: #333;
  font-size: 1.1rem;
}

.form-label i {
  color: #667eea;
}

.form-input {
  padding: 1rem;
  border: 2px solid #e1e5e9;
  border-radius: 10px;
  font-size: 1rem;
  transition: border-color 0.3s ease;
  font-family: "Cairo", sans-serif;
}

.form-input:focus {
  outline: none;
  border-color: #667eea;
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.file-info {
  font-size: 0.9rem;
  color: #666;
  margin-top: 0.5rem;
}

/* Fixed Assets Info */
.info-section {
  margin: 2rem 0;
}

.fixed-assets-info {
  background: linear-gradient(45deg, #f8f9fa, #e9ecef);
  border: 2px solid #dee2e6;
  border-radius: 15px;
  padding: 1.5rem;
  text-align: center;
}

.fixed-assets-info h3 {
  color: #495057;
  margin-bottom: 1rem;
  font-size: 1.2rem;
}

.fixed-assets-info h3 i {
  color: #667eea;
  margin-left: 0.5rem;
}

.asset-item {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin: 0.8rem 0;
  color: #6c757d;
  font-weight: 500;
}

.asset-item i {
  color: #28a745;
  font-size: 1.1rem;
}

/* Optional Label and Help Text */
.optional-label {
  font-size: 0.9rem;
  color: #6c757d;
  font-weight: 400;
  margin-right: 0.5rem;
}

.help-text {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.5rem;
  padding: 0.8rem;
  background: #e3f2fd;
  border: 1px solid #bbdefb;
  border-radius: 8px;
  font-size: 0.9rem;
  color: #1565c0;
}

.help-text i {
  color: #2196f3;
  font-size: 1rem;
}

/* Progress Bar */
.progress-container {
  margin-top: 2rem;
  text-align: center;
}

.progress-bar {
  width: 100%;
  height: 8px;
  background: #e1e5e9;
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 1rem;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(45deg, #667eea, #764ba2);
  width: 0%;
  transition: width 0.3s ease;
  border-radius: 4px;
}

.progress-text {
  color: #666;
  font-weight: 500;
}

/* Result Container */
.result-container {
  margin-top: 2rem;
  text-align: center;
}

.result-success {
  background: linear-gradient(45deg, #d4edda, #c3e6cb);
  border: 1px solid #c3e6cb;
  border-radius: 15px;
  padding: 2rem;
  color: #155724;
}

.result-success i {
  font-size: 3rem;
  margin-bottom: 1rem;
  color: #28a745;
}

.result-success h3 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.result-success p {
  margin-bottom: 1.5rem;
  opacity: 0.8;
}

/* Error Container */
.error-container {
  margin-top: 2rem;
  text-align: center;
}

.error-message {
  background: linear-gradient(45deg, #f8d7da, #f5c6cb);
  border: 1px solid #f5c6cb;
  border-radius: 15px;
  padding: 2rem;
  color: #721c24;
}

.error-message i {
  font-size: 3rem;
  margin-bottom: 1rem;
  color: #dc3545;
}

.error-message h3 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.error-message p {
  margin-bottom: 1.5rem;
  opacity: 0.8;
}

/* Detailed Error Display */
.error-main {
  font-size: 1.1rem;
  margin-bottom: 1rem;
  font-weight: 600;
}

.error-details {
  margin-top: 1rem;
  text-align: left;
}

.error-details details {
  background: rgba(0, 0, 0, 0.1);
  border-radius: 8px;
  padding: 0.5rem;
}

.error-details summary {
  cursor: pointer;
  font-weight: 500;
  padding: 0.5rem;
  color: #dc3545;
}

.error-details summary:hover {
  background: rgba(0, 0, 0, 0.1);
  border-radius: 4px;
}

.error-details pre {
  background: #2d3748;
  color: #e2e8f0;
  padding: 1rem;
  border-radius: 6px;
  overflow-x: auto;
  font-size: 0.85rem;
  line-height: 1.4;
  margin: 0.5rem 0;
  white-space: pre-wrap;
  word-wrap: break-word;
}

/* Features Section */
.features {
  padding: 80px 0;
  background: #f8f9fa;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.feature-card {
  background: white;
  padding: 2rem;
  border-radius: 15px;
  text-align: center;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.feature-icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(45deg, #667eea, #764ba2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
}

.feature-icon i {
  font-size: 2rem;
  color: white;
}

.feature-card h3 {
  font-size: 1.3rem;
  margin-bottom: 1rem;
  color: #333;
}

.feature-card p {
  color: #666;
  line-height: 1.6;
}

/* How It Works Section */
.how-it-works {
  padding: 80px 0;
  background: white;
}

.steps-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.step {
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
  padding: 2rem;
  background: #f8f9fa;
  border-radius: 15px;
  transition: transform 0.3s ease;
}

.step:hover {
  transform: translateY(-3px);
}

.step-number {
  width: 50px;
  height: 50px;
  background: linear-gradient(45deg, #667eea, #764ba2);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  flex-shrink: 0;
}

.step-content h3 {
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
  color: #333;
}

.step-content p {
  color: #666;
  line-height: 1.6;
}

/* Footer */
.footer {
  background: #2c3e50;
  color: white;
  padding: 60px 0 20px;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-section h3 {
  font-size: 1.3rem;
  margin-bottom: 1rem;
  color: #ecf0f1;
}

.footer-section p,
.footer-section li {
  color: #bdc3c7;
  line-height: 1.6;
}

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

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

.footer-section ul li a {
  color: #bdc3c7;
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-section ul li a:hover {
  color: #667eea;
}

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

.social-links a {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  text-decoration: none;
  transition: all 0.3s ease;
}

.social-links a:hover {
  background: #667eea;
  transform: translateY(-2px);
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: #bdc3c7;
}

/* Responsive Design */
@media (max-width: 768px) {
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
  }

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

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

  .nav {
    display: none;
  }

  .upload-container {
    padding: 2rem;
    margin: 0 1rem;
  }

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

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

  .steps-container {
    grid-template-columns: 1fr;
  }

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

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

  .hero {
    padding: 100px 0 60px;
  }

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

  .btn {
    padding: 10px 20px;
    font-size: 0.9rem;
  }

  .upload-container {
    padding: 1.5rem;
  }
}