:root {
  --navy: #0d2538;
  --navy-strong: #061826;
  --ink: #172a37;
  --muted: #61707a;
  --paper: #fffdf7;
  --canvas: #e7e9e6;
  --line: #8e9a9d;
  --soft-line: #d3d8d4;
  --header: #d9ddda;
  --gold: #ad8b45;
  --danger: #8a2f2f;
  --danger-soft: #fff4f2;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--canvas);
}

* { box-sizing: border-box; }

body { margin: 0; min-width: 320px; }

button, input, textarea { font: inherit; }

button { cursor: pointer; }

.app-shell {
  width: min(1440px, 100%);
  margin: 0 auto;
  padding: 28px 30px 48px;
}

.utility-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  margin: 0 auto 18px;
  max-width: 1320px;
}

.utility-copy { display: flex; align-items: center; gap: 12px; min-width: 190px; }

.utility-kicker {
  color: var(--navy);
  font-size: 0.71rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.utility-status {
  color: var(--muted);
  border-left: 1px solid #aeb6b1;
  padding-left: 12px;
  font-size: 0.76rem;
}

.utility-actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 8px; }

.button {
  border: 1px solid var(--navy);
  border-radius: 0;
  min-height: 38px;
  padding: 8px 13px;
  color: var(--navy);
  background: transparent;
  font-size: 0.78rem;
  font-weight: 750;
  letter-spacing: 0.025em;
  transition: background 150ms ease, color 150ms ease, transform 150ms ease;
}

.button:hover { transform: translateY(-1px); }
.button:focus-visible, input:focus-visible, textarea:focus-visible { outline: 3px solid rgba(173, 139, 69, 0.45); outline-offset: 1px; }
.button-primary { color: #fff; background: var(--navy); }
.button-primary:hover { background: var(--navy-strong); }
.button-danger { border-color: var(--danger); color: var(--danger); }
.button-danger:hover { background: var(--danger-soft); }

.paper {
  position: relative;
  max-width: 1320px;
  margin: 0 auto;
  padding: 30px 30px 28px;
  background: var(--paper);
  box-shadow: 0 20px 40px rgba(32, 48, 50, 0.13), 0 1px 1px rgba(32, 48, 50, 0.12);
}

.paper::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 5px;
  background: var(--gold);
}

.paper-header {
  display: grid;
  grid-template-columns: 6px minmax(0, 1fr) auto;
  align-items: end;
  column-gap: 14px;
  margin: 4px 0 24px;
}

.header-rule { height: 52px; background: var(--navy); }
.document-label {
  margin: 0 0 5px;
  color: var(--gold);
  font-size: 0.69rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  color: var(--navy);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.55rem, 2.8vw, 2.25rem);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.02em;
  text-transform: uppercase;
}

.maximum-mark {
  align-self: center;
  margin: 0;
  color: var(--muted);
  font-size: 0.82rem;
  white-space: nowrap;
}

.maximum-mark strong { color: var(--navy); font-size: 1.1rem; }
.table-scroll { overflow-x: auto; border: 1px solid var(--line); }

.score-table {
  width: 100%;
  min-width: 1000px;
  border-collapse: collapse;
  table-layout: fixed;
}

.presentation-column { width: 34%; }
.score-column { width: 12%; }
.scientific-column { width: 15%; }
.total-column { width: 15%; }

.score-table th,
.score-table td { border-right: 1px solid var(--line); }
.score-table th:last-child,
.score-table td:last-child { border-right: 0; }

.score-table thead th {
  height: 102px;
  padding: 13px 12px;
  color: var(--navy);
  background: var(--header);
  border-bottom: 1px solid var(--line);
  font-size: 0.75rem;
  font-weight: 850;
  letter-spacing: 0.075em;
  line-height: 1.22;
  text-align: left;
  text-transform: uppercase;
  vertical-align: bottom;
}

.score-table thead th:not(:first-child) { text-align: center; }
.score-table .subhead { display: block; font-size: 0.66rem; font-weight: 700; letter-spacing: 0.07em; }
.score-table .mark { display: block; margin-top: 7px; color: var(--muted); font-size: 0.68rem; font-weight: 700; letter-spacing: 0.05em; }
.score-table .total-heading { background: #cbd1ce; }

.score-table tbody tr + tr td { border-top: 1px solid var(--line); }
.score-table tbody tr { height: 122px; }
.score-table td { padding: 12px; vertical-align: top; }

.presentation-cell { background: rgba(231, 234, 230, 0.34); }
.presentation-fields { display: grid; grid-template-columns: minmax(150px, 0.72fr) minmax(190px, 1.28fr); gap: 10px; height: 100%; }

.presenter-input,
.topic-input,
.score-input,
.signoff input {
  width: 100%;
  border: 0;
  color: var(--ink);
  background: transparent;
}

.presenter-input {
  min-width: 0;
  border-bottom: 1px solid var(--soft-line);
  align-self: start;
  padding: 8px 2px 7px;
  color: var(--navy);
  font-weight: 700;
}

.topic-input { min-width: 0; min-height: 73px; resize: vertical; padding: 7px 2px; line-height: 1.42; }
.presenter-input::placeholder, .topic-input::placeholder { color: #859198; opacity: 1; }

.score-cell { padding: 12px 10px !important; text-align: center; }
.score-input {
  height: 86px;
  padding: 12px 8px;
  border: 1px solid transparent;
  border-radius: 2px;
  background: transparent;
  color: var(--navy);
  font-size: 1.45rem;
  font-weight: 700;
  text-align: center;
}
.score-input:hover, .score-input:focus { border-color: #aeb7b3; background: #fff; }
.score-input.is-invalid { border-color: var(--danger); background: var(--danger-soft); color: var(--danger); }
.score-input::-webkit-outer-spin-button, .score-input::-webkit-inner-spin-button { margin: 0; -webkit-appearance: none; }
.score-input[type="number"] { appearance: textfield; -moz-appearance: textfield; }

.total-cell { padding-top: 29px !important; background: rgba(215, 221, 218, 0.52); text-align: center; }
.row-total { display: block; color: var(--navy); font-size: 2.05rem; font-weight: 800; line-height: 1; }
.out-of { display: block; margin-top: 7px; color: var(--muted); font-size: 0.7rem; font-weight: 750; letter-spacing: 0.07em; }

.signoff {
  display: grid;
  grid-template-columns: 1.35fr 1.15fr 0.7fr;
  gap: 28px;
  margin-top: 29px;
  padding-top: 16px;
  border-top: 3px solid var(--navy);
}

.signoff-item { display: grid; gap: 8px; }
.signoff label {
  color: var(--navy);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.signoff input { min-height: 34px; border-bottom: 1px solid var(--ink); padding: 5px 2px; }
.signoff input[type="date"] { color: var(--ink); }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 840px) {
  .app-shell { padding: 16px 0 30px; }
  .utility-bar { align-items: flex-start; flex-direction: column; padding: 0 16px; }
  .utility-actions { justify-content: flex-start; }
  .paper { padding: 24px 16px; box-shadow: 0 12px 30px rgba(32, 48, 50, 0.12); }
  .paper-header { grid-template-columns: 5px minmax(0, 1fr); }
  .maximum-mark { grid-column: 2; margin-top: 12px; }
  .signoff { grid-template-columns: 1fr; gap: 18px; }
}

@media print {
  @page { size: landscape; margin: 11mm; }
  :root { background: #fff; }
  body { background: #fff; }
  .app-shell { width: 100%; padding: 0; }
  .utility-bar { display: none; }
  .paper { max-width: none; padding: 0; box-shadow: none; }
  .paper::before { display: none; }
  .paper-header { margin-top: 0; margin-bottom: 12px; }
  .header-rule { height: 38px; }
  .score-table { min-width: 0; }
  .score-table thead th { height: 60px; padding: 7px; font-size: 0.59rem; }
  .score-table tbody tr { height: 73px; }
  .score-table td { padding: 5px; }
  .presentation-fields { gap: 4px; }
  .presenter-input { padding: 3px 0; font-size: 0.72rem; }
  .topic-input { min-height: 48px; padding: 3px 0; font-size: 0.72rem; resize: none; }
  .score-input { height: 50px; padding: 4px; font-size: 1rem; }
  .total-cell { padding-top: 16px !important; }
  .row-total { font-size: 1.35rem; }
  .signoff { margin-top: 16px; padding-top: 10px; }
  .signoff input { min-height: 25px; }
}