:root {
  --ink: #111827;
  --muted: #5d6878;
  --line: #dce3eb;
  --paper: #f5f7fb;
  --panel: #ffffff;
  --night: #101827;
  --blue: #2563eb;
  --cyan: #0891b2;
  --orange: #e76f3c;
  --green: #16815f;
  --red: #b42318;
  --yellow: #f4b63f;
  --shadow: 0 18px 48px rgba(17, 24, 39, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.55;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
}

button,
input,
select,
textarea {
  font: inherit;
}

.eval-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 74px;
  padding: 14px clamp(18px, 4vw, 52px);
  border-bottom: 1px solid rgba(220, 227, 235, 0.92);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(18px);
}

.eval-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  font-weight: 900;
}

.eval-brand img {
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: #ffffff;
  object-fit: cover;
}

.eval-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 6px;
  flex: 1 1 auto;
  overflow-x: auto;
}

.eval-nav a,
.logout-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 0 12px;
  border-radius: 8px;
  color: #263244;
  font-size: 0.9rem;
  font-weight: 850;
  white-space: nowrap;
}

.eval-nav a:hover,
.eval-nav a.active {
  background: #eaf1ff;
  color: var(--blue);
}

.logout-link {
  border: 1px solid var(--line);
  background: #ffffff;
}

.eval-main {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 34px 0 58px;
}

.eval-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  align-items: end;
  margin-bottom: 22px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--orange);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 10px;
  font-size: clamp(2.35rem, 6vw, 4.3rem);
  line-height: 0.95;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 12px;
  font-size: clamp(1.55rem, 3vw, 2.2rem);
  line-height: 1.05;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 8px;
  font-size: 1.04rem;
  line-height: 1.25;
}

.muted {
  color: var(--muted);
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 16px;
}

.span-4 {
  grid-column: span 4;
}

.span-5 {
  grid-column: span 5;
}

.span-6 {
  grid-column: span 6;
}

.span-7 {
  grid-column: span 7;
}

.span-8 {
  grid-column: span 8;
}

.span-12 {
  grid-column: span 12;
}

.panel,
.metric,
.question-row,
.exam-row {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 10px 32px rgba(17, 24, 39, 0.07);
}

.panel {
  padding: clamp(18px, 3vw, 28px);
}

.metric {
  padding: 18px;
}

.metric span {
  display: block;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
}

.metric strong {
  display: block;
  margin-top: 8px;
  font-size: 2rem;
  line-height: 1;
}

.button,
.link-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid transparent;
  border-radius: 8px;
  background: #ffffff;
  color: var(--ink);
  font-weight: 900;
  cursor: pointer;
}

.button.primary {
  background: var(--orange);
  color: #ffffff;
}

.button.blue {
  background: var(--blue);
  color: #ffffff;
}

.button.light {
  border-color: var(--line);
  background: #ffffff;
}

.button.danger {
  border-color: rgba(180, 35, 24, 0.2);
  background: #fff1f0;
  color: var(--red);
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 14px;
}

label {
  display: grid;
  gap: 7px;
  color: #253044;
  font-size: 0.9rem;
  font-weight: 850;
}

input,
select,
textarea {
  width: 100%;
  min-height: 42px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  color: var(--ink);
}

textarea {
  min-height: 112px;
  resize: vertical;
}

.field-span-2 {
  grid-column: span 2;
}

.field-span-3 {
  grid-column: span 3;
}

.field-span-4 {
  grid-column: span 4;
}

.field-span-6 {
  grid-column: span 6;
}

.field-span-8 {
  grid-column: span 8;
}

.field-span-12 {
  grid-column: span 12;
}

.dynamic-box {
  display: grid;
  gap: 12px;
  grid-column: span 12;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8fbff;
}

.option-row,
.pair-row,
.item-row,
.answer-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
}

.pair-row {
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) auto;
}

.item-row {
  grid-template-columns: 1.05fr 1fr 1fr 88px 96px auto auto auto;
  align-items: end;
}

.answer-row {
  grid-template-columns: 58px minmax(0, 1fr) 86px;
}

.pill {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 9px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: #344155;
  font-size: 0.78rem;
  font-weight: 850;
}

.question-list,
.exam-list {
  display: grid;
  gap: 12px;
}

.question-row,
.exam-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 14px;
  align-items: start;
  padding: 16px;
}

.question-row p,
.exam-row p {
  margin-bottom: 8px;
}

.mini-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.flash {
  width: min(1180px, calc(100% - 32px));
  margin: 16px auto 0;
  padding: 13px 16px;
  border-radius: 8px;
  font-weight: 850;
}

.flash.success {
  border: 1px solid rgba(22, 129, 95, 0.22);
  background: #ecfdf3;
  color: #05603a;
}

.flash.error {
  border: 1px solid rgba(180, 35, 24, 0.22);
  background: #fff1f0;
  color: var(--red);
}

.login-shell {
  min-height: calc(100vh - 74px);
  display: grid;
  place-items: center;
  padding: 32px 18px;
  background:
    linear-gradient(120deg, rgba(6, 10, 24, 0.9), rgba(9, 22, 48, 0.68)),
    url("https://images.unsplash.com/photo-1462331940025-496dfbfc7564?auto=format&fit=crop&w=1800&q=84")
      center / cover;
}

.login-panel {
  width: min(460px, 100%);
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.95);
  box-shadow: var(--shadow);
}

.print-area {
  width: min(920px, calc(100% - 32px));
  margin: 24px auto 64px;
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}

.print-header {
  display: grid;
  grid-template-columns: 70px minmax(0, 1fr);
  gap: 16px;
  align-items: center;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 2px solid #111827;
}

.print-header img {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  object-fit: cover;
}

.exam-question {
  break-inside: avoid;
  margin: 18px 0;
}

.exam-question img {
  max-width: 420px;
  margin: 10px 0;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.exam-options {
  display: grid;
  gap: 8px;
  margin-top: 10px;
}

.answer-lines {
  display: grid;
  gap: 9px;
  margin-top: 12px;
}

.answer-lines span {
  display: block;
  height: 24px;
  border-bottom: 1px solid #6b7280;
}

.answer-sheet {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 28px;
  margin-top: 18px;
}

.answer-sheet.scan-friendly {
  width: min(420px, 100%);
  grid-template-columns: 1fr;
}

.bubble-row {
  display: grid;
  grid-template-columns: 42px repeat(5, 42px);
  gap: 8px;
  align-items: center;
  min-height: 34px;
}

.bubble {
  display: inline-grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border: 2px solid #111827;
  border-radius: 50%;
  font-size: 0.72rem;
  font-weight: 900;
}

.scan-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  gap: 18px;
}

.scan-canvas-wrap {
  position: relative;
  overflow: auto;
  min-height: 320px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #0f172a;
}

#scan-canvas {
  display: block;
  max-width: 100%;
  height: auto;
}

.scan-controls {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.result-box {
  padding: 16px;
  border: 1px solid rgba(22, 129, 95, 0.22);
  border-radius: 8px;
  background: #ecfdf3;
}

.hidden {
  display: none !important;
}

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

  .eval-header,
  .button-row,
  .flash {
    display: none !important;
  }

  .print-area {
    width: 100%;
    margin: 0;
    padding: 0;
    border: 0;
    box-shadow: none;
  }

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

@media (max-width: 980px) {
  .eval-header {
    align-items: flex-start;
    flex-wrap: wrap;
  }

  .eval-nav {
    order: 3;
    width: 100%;
    justify-content: flex-start;
  }

  .eval-hero,
  .scan-layout {
    grid-template-columns: 1fr;
  }

  .span-4,
  .span-5,
  .span-6,
  .span-7,
  .span-8,
  .span-12,
  .field-span-2,
  .field-span-3,
  .field-span-4,
  .field-span-6,
  .field-span-8,
  .field-span-12 {
    grid-column: span 12;
  }

  .item-row,
  .question-row,
  .exam-row {
    grid-template-columns: 1fr;
  }

  .answer-sheet {
    grid-template-columns: 1fr;
  }
}