* {
  box-sizing: border-box;
}

:root {
  --orange: #f95a0a;
  --purple: #2d236f;
  --purple-dark: #201755;
  --bg: #f4f6fb;
  --card: #ffffff;
  --line: #dde3ef;
  --text: #1f2937;
  --muted: #667085;
  --success-bg: #ecfdf3;
  --success-text: #166534;
  --danger-bg: #fef2f2;
  --danger-text: #b91c1c;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: linear-gradient(180deg, #f8faff 0%, #eef2f8 100%);
  color: var(--text);
}

.container {
  max-width: 980px;
  margin: 24px auto;
  background: var(--card);
  border: 1px solid #e7ebf4;
  border-radius: 24px;
  box-shadow: 0 22px 46px rgba(30, 41, 59, 0.12);
  overflow: hidden;
}

.hero {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 18px;
  align-items: center;
  padding: 24px 28px;
  background: linear-gradient(135deg, var(--purple-dark), var(--purple) 55%, var(--orange) 170%);
  color: #fff;
}

.hero img {
  width: 92px;
  height: 92px;
  object-fit: contain;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  padding: 8px;
}

.hero h1 {
  margin: 0 0 6px;
  font-size: 30px;
}

.hero p {
  margin: 0;
  line-height: 1.5;
  opacity: 0.95;
}

.main {
  display: block;
  padding: 22px;
}

.left-column {
  width: 100%;
}

.right-column {
  display: none;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 18px;
  margin-bottom: 16px;
}

.card h2,
.preview-section h3 {
  margin-top: 0;
}

.grid {
  display: grid;
  gap: 14px;
}

.grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.field label {
  display: block;
  font-weight: 700;
  margin-bottom: 7px;
  font-size: 14px;
}

.field input,
.field select {
  width: 100%;
  padding: 12px 13px;
  border: 1px solid #cfd7e6;
  border-radius: 12px;
  font-size: 15px;
  background: #fff;
}

.field input:focus,
.field select:focus {
  border-color: var(--purple);
  outline: 2px solid rgba(45, 35, 111, 0.1);
}

.hidden-field {
  position: absolute;
  left: -9999px;
}

.inline-actions,
.actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 14px;
}

.btn {
  border: 0;
  border-radius: 12px;
  padding: 12px 16px;
  font-weight: 700;
  cursor: pointer;
}

.btn.primary {
  background: var(--orange);
  color: #fff;
}

.btn.secondary {
  background: var(--purple);
  color: #fff;
}

.btn.tertiary {
  background: #eef2ff;
  color: var(--purple);
}

.helper {
  color: var(--muted);
  margin-top: 0;
}

.subject-list {
  display: grid;
  gap: 10px;
}

.subject-item {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 12px;
  border: 1px solid #e4e9f3;
  border-radius: 12px;
  background: #fafcff;
}

.subject-item.disabled {
  opacity: 0.55;
  background: #f3f5f9;
}

.subject-code {
  font-weight: 700;
  color: var(--purple);
}

.subject-name {
  line-height: 1.4;
}

.empty-state {
  color: var(--muted);
  padding: 14px;
  border: 1px dashed #d7deea;
  border-radius: 12px;
  background: #fafbff;
}

.preview-card {
  position: sticky;
  top: 18px;
  background: #fff;
}

.pdf-header {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 14px;
  align-items: center;
  border-bottom: 2px solid #ebeef6;
  padding-bottom: 14px;
}

.pdf-header img {
  width: 72px;
  height: 72px;
  object-fit: contain;
}

.preview-meta,
.preview-grid {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.preview-section {
  margin-top: 18px;
}

.preview-section h3 {
  margin: 0 0 10px;
  padding: 8px 12px;
  background: var(--purple);
  color: #fff;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .3px;
}

.preview-grid strong,
.preview-meta strong,
.preview-section strong {
  font-weight: 800;
  color: var(--text);
}

.preview-table {
  width: 100%;
  table-layout: fixed;
  border-collapse: collapse;
  font-size: 14px;
}

.preview-table th,
.preview-table td {
  border: 1px solid #dfe5f0;
  padding: 8px 9px;
  text-align: left;
  vertical-align: top;
}

.preview-table thead th {
  background: #eef2ff;
  color: var(--purple);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .3px;
}

.preview-table tbody tr:nth-child(even) td {
  background: #fafbff;
}

.preview-signatures {
  margin-top: 26px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
}

.preview-signatures .line {
  display: block;
  border-top: 1px solid #1f2937;
  margin-bottom: 8px;
  margin-top: 38px;
}

.message {
  margin-top: 18px;
  border-radius: 12px;
  padding: 12px 14px;
  font-weight: 700;
}

.message.success {
  background: var(--success-bg);
  color: var(--success-text);
}

.message.error {
  background: var(--danger-bg);
  color: var(--danger-text);
}

.hidden {
  display: none;
}

.declaration {
  color: var(--muted);
  line-height: 1.5;
}

@media (max-width: 1100px) {
  .preview-card {
    position: static;
  }
}

@media (max-width: 760px) {
  .hero,
  .grid.two,
  .grid.three,
  .preview-meta,
  .preview-grid,
  .preview-signatures {
    grid-template-columns: 1fr;
  }

  .container {
    margin: 0;
    border-radius: 0;
    max-width: 100%;
  }

  .main {
    padding: 14px;
  }
}

@media print {
  @page {
    size: A4 portrait;
    margin: 10mm;
  }

  html,
  body {
    width: 210mm;
    height: auto;
    margin: 0;
    padding: 0;
    background: #ffffff !important;
    color: #111827 !important;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 11px;
    -webkit-print-color-adjust: exact !important;
    print-color-adjust: exact !important;
  }

  body * {
    visibility: hidden;
  }

  .right-column,
  .right-column *,
  .preview-card,
  .preview-card * {
    visibility: visible;
  }

  .right-column {
    display: block !important;
    width: 100% !important;
  }

  .hero,
  .left-column,
  .actions,
  .message {
    display: none !important;
  }

  .container,
  .main,
  .card,
  .right-column,
  .preview-card {
    margin: 0 !important;
    padding: 0 !important;
    border: 0 !important;
    box-shadow: none !important;
    background: #fff !important;
    width: 100% !important;
    max-width: 100% !important;
  }

  .main {
    display: block !important;
  }

  .preview-card {
    display: block !important;
    position: absolute !important;
    left: 0;
    top: 0;
    width: 100% !important;
    padding: 0 !important;
  }

  .pdf-header {
    display: grid !important;
    grid-template-columns: 62px 1fr 190px !important;
    gap: 14px !important;
    align-items: center !important;
    border-bottom: 2px solid #d9deea !important;
    padding: 0 0 10px 0 !important;
    margin-bottom: 12px !important;
  }

  .pdf-header img {
    width: 58px !important;
    height: 58px !important;
    object-fit: contain !important;
  }

  .pdf-header h1 {
    margin: 0 0 4px 0 !important;
    font-size: 20px !important;
    font-weight: 800 !important;
    color: #1f1f1f !important;
  }

  .pdf-header p {
    margin: 0 !important;
    font-size: 11px !important;
    color: #4b5563 !important;
    line-height: 1.3 !important;
  }

  .preview-meta {
    display: grid !important;
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
    gap: 8px 18px !important;
    margin: 12px 0 14px 0 !important;
  }

  .preview-meta div {
    font-size: 11px !important;
    line-height: 1.3 !important;
    color: #111827 !important;
  }

  .preview-meta strong {
    font-weight: 800 !important;
    color: #111827 !important;
  }

  .preview-section {
    margin-top: 12px !important;
    page-break-inside: avoid !important;
  }

  .preview-section h3 {
    margin: 0 0 8px 0 !important;
    padding: 6px 10px !important;
    background: #2d236f !important;
    color: #ffffff !important;
    font-size: 12px !important;
    font-weight: 800 !important;
    text-transform: uppercase !important;
    letter-spacing: 0.4px !important;
    border-radius: 6px !important;
  }

  .preview-grid {
    display: grid !important;
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
    gap: 8px 18px !important;
    margin-bottom: 8px !important;
  }

  .preview-grid div,
  .preview-section p,
  .declaration {
    font-size: 11px !important;
    line-height: 1.35 !important;
    color: #111827 !important;
  }

  .preview-grid strong,
  .preview-section strong {
    font-weight: 800 !important;
    color: #111827 !important;
  }

  .preview-table {
    width: 100% !important;
    table-layout: fixed !important;
    border-collapse: collapse !important;
    margin-top: 6px !important;
    font-size: 10px !important;
    border: 1px solid #cfd7e6 !important;
  }

  .preview-table thead th {
    background: #eef2ff !important;
    color: #2d236f !important;
    font-weight: 800 !important;
    text-transform: uppercase !important;
    letter-spacing: 0.3px !important;
    border: 1px solid #cfd7e6 !important;
    padding: 6px 7px !important;
  }

  .preview-table tbody td {
    border: 1px solid #d9deea !important;
    padding: 6px 7px !important;
    line-height: 1.25 !important;
    vertical-align: top !important;
    color: #111827 !important;
    word-wrap: break-word !important;
  }

  .preview-table th:nth-child(1),
  .preview-table td:nth-child(1) {
    width: 14% !important;
    font-weight: 700 !important;
  }

  .preview-table th:nth-child(2),
  .preview-table td:nth-child(2) {
    width: 66% !important;
  }

  .preview-table th:nth-child(3),
  .preview-table td:nth-child(3) {
    width: 20% !important;
    text-align: center !important;
  }

  .preview-table tbody tr:nth-child(even) td {
    background: #fafbff !important;
  }

  .declaration {
    margin-top: 8px !important;
    color: #374151 !important;
  }

  .preview-signatures {
    display: grid !important;
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
    gap: 28px !important;
    margin-top: 20px !important;
    page-break-inside: avoid !important;
  }

  .preview-signatures .line {
    display: block !important;
    border-top: 1.5px solid #1f2937 !important;
    margin: 24px 0 6px 0 !important;
  }

  .preview-signatures div {
    font-size: 11px !important;
    color: #111827 !important;
  }

  .preview-signatures strong {
    font-weight: 800 !important;
  }
}