:root {
  --primary-color: #000000;
  --secondary-color: #333333;
  --text-dark: #000000;
  --text-light: #ffffff;
  --bg-color: #f5f5f5;
  --border-color: #e0e0e0;
  --input-bg: #ffffff;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Times New Roman", Times, serif;
  background: var(--bg-color);
  min-height: 100vh;
  padding: 20px;
  color: var(--text-dark);
  overflow-x: hidden;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  align-items: start;
}

/* Form Panel */
.form-panel {
  background: white;
  border-radius: 8px;
  padding: 30px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  border: 1px solid var(--border-color);
}

.form-panel h1 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-dark);
}

.form-panel p {
  color: #666;
  margin-bottom: 30px;
  font-size: 0.95rem;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-dark);
  font-size: 0.9rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  font-family: "Times New Roman", Times, serif;
  font-size: 0.95rem;
  transition: border-color 0.2s ease;
  background: var(--input-bg);
}

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

.form-group textarea {
  resize: vertical;
  min-height: 60px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

/* Export Buttons */
.export-buttons {
  display: flex;
  gap: 15px;
  margin-top: 30px;
}

.btn {
  flex: 1;
  padding: 12px 24px;
  border: 1px solid var(--primary-color);
  border-radius: 4px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: "Times New Roman", Times, serif;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

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

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

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

.btn-image:hover {
  background: #f5f5f5;
}

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

/* Preview Panel */
.preview-panel {
  position: sticky;
  top: 20px;
}

.preview-label {
  text-align: center;
  color: var(--text-dark);
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 15px;
}

.a4-container {
  background: white;
  width: 210mm;
  height: 297mm;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  margin: 0 auto;
  border: 1px solid var(--border-color);
}

/* A4 Cover Page Content */
.cover-page {
  width: 100%;
  height: 100%;
  padding: 10mm 12mm;
  background: white;
  position: relative;
  display: flex;
  flex-direction: column;
}

/* Header with Logo */
.header-section {
  text-align: center;
  margin-bottom: 8mm;
  padding: 10px 10px 0 10px;
}

.university-logo {
  max-width: 100%;
  height: auto;
  max-height: 120px;
  object-fit: contain;
}

/* Department Banner */
.department-banner {
  background: #f0f0f0;
  color: var(--text-dark);
  padding: 8px 20px;
  text-align: center;
  font-size: 16pt;
  font-weight: 700;
  margin: 0 -12mm 8mm -12mm;
  border-top: 2px solid var(--text-dark);
  border-bottom: 2px solid var(--text-dark);
}

/* Course Section */
.course-section {
  margin-bottom: 8mm;
}

.course-info {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 11pt;
}

.info-row {
  display: flex;
  align-items: center;
  line-height: 1.6;
}

.info-label {
  font-weight: 700;
  min-width: 150px;
  color: var(--text-dark);
}

.info-separator {
  margin: 0 10px;
  font-weight: 700;
}

.info-value {
  flex: 1;
  background: #f9f9f9;
  padding: 4px 10px;
  border-radius: 3px;
  font-weight: 400;
  border: 1px solid #e8e8e8;
}

/* Submission Section */
.submission-section {
  margin-top: auto;
}

.submission-table {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--text-dark);
  font-size: 10pt;
}

.submission-table th {
  background: #f0f0f0;
  padding: 7px 8px;
  font-weight: 700;
  font-size: 11pt;
  border: 1px solid var(--text-dark);
  text-align: center;
}

.submission-table td {
  padding: 5px 8px;
  border: 1px solid var(--text-dark);
  font-weight: 600;
  line-height: 1.3;
}

.submission-table .field-label {
  font-weight: 700;
  width: 40%;
  background: #fafafa;
}

.submission-table .field-value {
  font-weight: 400;
}

/* Responsive Design */
@media (max-width: 1400px) {
  .a4-container {
    width: 190mm;
    height: 268.6mm;
  }
}

@media (max-width: 1200px) {
  .container {
    grid-template-columns: 1fr;
  }

  .preview-panel {
    position: relative;
    top: 0;
  }

  .a4-container {
    width: 100%;
    max-width: 600px;
    height: auto;
    aspect-ratio: 210 / 297;
    overflow: hidden;
  }

  .cover-page {
    transform: scale(1);
    transform-origin: top left;
  }
}

@media (max-width: 768px) {
  body {
    padding: 10px;
    overflow-x: hidden;
  }

  .container {
    gap: 20px;
    overflow-x: hidden;
  }

  .form-panel {
    padding: 20px;
  }

  .form-panel h1 {
    font-size: 1.5rem;
  }

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

  .export-buttons {
    flex-direction: column;
  }

  .a4-container {
    width: 100%;
    max-width: 100%;
    overflow: hidden;
  }
}

/* Print and Export Styles */
@media print {
  @page {
    size: A4;
    margin: 0;
  }

  body {
    background: white;
  }

  .form-panel,
  .preview-label {
    display: none;
  }

  .preview-panel {
    width: 210mm;
    height: 297mm;
  }

  .a4-container {
    box-shadow: none;
    border: none;
    page-break-after: always;
  }
}

/* Ensure consistent export on all devices */
@media screen and (max-width: 768px) {
  /* When generating PDF/image, force A4 dimensions */
  .cover-page {
    font-size: 11pt;
  }

  .department-banner {
    font-size: 16pt;
  }

  .submission-table {
    font-size: 10pt;
  }

  .submission-table th {
    font-size: 11pt;
  }

  .university-logo {
    max-height: 70px;
  }
}

/* Website Footer */
.website-footer {
  background: white;
  border-top: 1px solid var(--border-color);
  padding: 20px;
  margin-top: 40px;
  text-align: center;
}

.footer-content {
  max-width: 1400px;
  margin: 0 auto;
  font-size: 0.9rem;
  color: #666;
}

.footer-content .developed-by {
  color: #666;
  font-weight: 500;
  margin-right: 8px;
  font-style: italic;
}

.footer-content a {
  color: #0066cc;
  text-decoration: none;
  font-weight: 500;
  transition: all 0.2s ease;
  padding: 2px 6px;
  border-radius: 3px;
}

.footer-content a:hover {
  color: #004499;
  background: #f0f7ff;
}

.footer-content .separator {
  margin: 0 6px;
  color: #ccc;
  font-weight: 300;
}