:root {
  --bg: #f3f4f6;
  --card: #ffffff;
  --primary: #166534;
  --primary-hover: #14532d;
  --text: #1f2937;
  --muted: #6b7280;
  --border: #d1d5db;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(135deg, #e5f3e8, #f4f4f5);
  color: var(--text);
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px;
  display: grid;
  gap: 20px;
  grid-template-columns: 1fr 1fr;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

h1, h2 {
  margin: 0 0 10px;
}

.subtitle {
  color: var(--muted);
  margin: 0 0 16px;
}

.form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

label {
  font-weight: 600;
}

input, select, button {
  border-radius: 8px;
  border: 1px solid var(--border);
  padding: 10px 12px;
  font-size: 14px;
}

button {
  cursor: pointer;
  background: var(--primary);
  color: #fff;
  border: 0;
  font-weight: 600;
}

button:hover {
  background: var(--primary-hover);
}

.output-card {
  display: flex;
  flex-direction: column;
  min-height: 500px;
}

.output-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
  gap: 10px;
}

.actions {
  display: flex;
  gap: 8px;
}

#copy-btn, #export-docx-btn, #export-pdf-btn {
  width: 90px;
}

pre {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
  background: #f9fafb;
  border: 1px solid #e5e7eb;
  border-radius: 10px;
  padding: 14px;
  line-height: 1.55;
  flex: 1;
  font-family: "Times New Roman", serif;
  font-size: 12pt;
  background: #fff;
  border: 0;
  padding: 0;
}

.doc-preview {
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 10px;
  padding: 34px 40px;
  min-height: 100%;
  font-family: "Times New Roman", serif;
  color: #111827;
}

.doc-title, .doc-school, .doc-year {
  margin: 0;
  text-align: center;
}

.doc-title {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.4px;
}

.doc-school {
  margin-top: 4px;
  font-size: 35px;
  font-weight: 700;
}

.doc-year {
  margin-top: 4px;
  font-size: 12pt;
}

.meta-grid {
  margin-top: 16px;
  display: grid;
  grid-template-columns: 180px 1fr 140px 1fr;
  gap: 6px 10px;
  font-size: 12pt;
}

.section-title {
  margin: 16px 0 6px;
  font-size: 14pt;
  text-decoration: underline;
}

.section-note {
  margin: 0 0 12px;
  font-size: 12pt;
  font-style: italic;
}

@media print {
  body {
    background: #fff;
  }

  .card:first-child,
  .output-header {
    display: none;
  }

  .doc-preview {
    border: 0;
    box-shadow: none;
    padding: 0;
  }
}

@media (max-width: 900px) {
  .container {
    grid-template-columns: 1fr;
  }

  .output-card {
    min-height: 380px;
  }

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