:root {
  color-scheme: light;
  --paper: #f2ecdd;
  --paper-deep: #e9e1cf;
  --ink: #191d18;
  --ink-soft: #3f463d;
  --muted: #6c7266;
  --rule: #cfc5ae;
  --rule-strong: #a89c82;
  --green: #1f5b3a;
  --green-deep: #143d27;
  --green-wash: #dce6d9;
  --red: #a63a2f;
  --red-wash: #ecd9d2;
  --code-bg: #171c17;
  --code-text: #ece6d6;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  --serif: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Palatino, Georgia, serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html {
  min-height: 100%;
}

body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  color: var(--ink);
  background-color: var(--paper);
  background-image:
    radial-gradient(1100px 620px at 12% -8%, #fbf7ec 0%, rgba(251, 247, 236, 0) 58%),
    repeating-linear-gradient(180deg, rgba(25, 29, 24, 0) 0 31px, rgba(25, 29, 24, 0.035) 31px 32px);
  font: 17px/1.55 var(--serif);
}

body::before {
  content: "";
  position: fixed;
  inset: 14px;
  border: 1px solid var(--rule-strong);
  pointer-events: none;
  z-index: 0;
}

::selection {
  background: var(--green-wash);
  color: var(--green-deep);
}

#app {
  position: relative;
  z-index: 1;
  width: min(980px, 100%);
  min-height: 100vh;
  margin: 0 auto;
  padding: 60px 30px 76px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.screen {
  width: 100%;
}

.eyebrow {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  margin: 0 0 38px;
  padding-bottom: 11px;
  border-bottom: 1px solid var(--rule);
  color: var(--muted);
  font: 600 10px/1.4 var(--mono);
  letter-spacing: 0.17em;
  text-transform: uppercase;
}

h1 {
  margin: 0 0 14px;
  font-size: clamp(2.5rem, 6.4vw, 4.3rem);
  line-height: 0.98;
  letter-spacing: -0.02em;
  font-weight: 600;
}

h1 em {
  font-style: italic;
  color: var(--green);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 7px;
  text-decoration-color: var(--green);
}

.lede {
  margin: 0 0 32px;
  max-width: 56ch;
  color: var(--ink-soft);
  font-size: 1.18rem;
}

.account {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 26px;
  padding: 5px 12px 5px 6px;
  border: 1px solid var(--rule-strong);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.4);
  color: var(--ink-soft);
  font: 500 11px/1 var(--mono);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.account-avatar {
  border-radius: 50%;
  filter: grayscale(0.15);
}

.link-btn {
  padding: 0;
  border: 0;
  background: none;
  color: var(--muted);
  font: inherit;
  text-decoration: underline;
  text-underline-offset: 3px;
  cursor: pointer;
}

.link-btn:hover {
  background: none;
  color: var(--ink);
}

.exam-meta {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin: 0 0 30px;
  border-top: 1px solid var(--rule-strong);
  border-bottom: 1px solid var(--rule);
}

.exam-meta div {
  padding: 12px 14px 14px 0;
  border-right: 1px solid var(--rule);
}

.exam-meta div:last-child {
  border-right: 0;
}

.exam-meta div + div {
  padding-left: 16px;
}

.exam-meta dt {
  color: var(--muted);
  font: 600 9.5px/1.4 var(--mono);
  letter-spacing: 0.17em;
  text-transform: uppercase;
}

.exam-meta dd {
  margin: 5px 0 0;
  font: 600 1.15rem/1.2 var(--serif);
}

.rules {
  counter-reset: rule;
  list-style: none;
  margin: 0 0 34px;
  padding: 0;
  display: grid;
  gap: 11px;
  max-width: 64ch;
}

.rules li {
  counter-increment: rule;
  position: relative;
  padding-left: 44px;
  color: var(--ink-soft);
}

.rules li::before {
  content: counter(rule, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0.16em;
  padding: 2px 6px;
  border: 1px solid var(--rule-strong);
  color: var(--green);
  font: 600 10px/1.5 var(--mono);
  letter-spacing: 0.08em;
}

.start-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

button {
  padding: 11px 18px;
  border: 1px solid var(--ink);
  border-radius: 2px;
  background: transparent;
  color: var(--ink);
  font: 600 11px/1 var(--mono);
  letter-spacing: 0.13em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
}

button:hover {
  background: var(--ink);
  color: var(--paper);
}

button:disabled {
  opacity: 0.4;
  cursor: default;
}

.primary {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
  box-shadow: 4px 4px 0 var(--green);
  padding: 14px 22px;
}

.primary:hover {
  background: var(--green-deep);
  border-color: var(--green-deep);
  box-shadow: 2px 2px 0 var(--green);
  transform: translate(2px, 2px);
}

button:focus-visible,
a:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 3px;
}

.auth-note {
  margin: 16px 0 0;
  color: var(--red);
  font: 500 12px/1.5 var(--mono);
  letter-spacing: 0.03em;
}

.fineprint {
  margin: 16px 0 0;
  color: var(--muted);
  font: 500 10.5px/1.6 var(--mono);
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

a {
  color: var(--green);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.fineprint a {
  color: var(--ink-soft);
}

/* Test screen */

#screen-test {
  display: flex;
  flex-direction: column;
}

.hud {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 0;
  border-top: 2px solid var(--ink);
  border-bottom: 1px solid var(--rule);
  color: var(--ink-soft);
  font: 600 10px/1.4 var(--mono);
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.hud .title {
  color: var(--ink);
  letter-spacing: 0.16em;
}

#candidate {
  max-width: 42%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

#timer {
  color: var(--ink);
  font: 600 19px/1 var(--mono);
  letter-spacing: 0.04em;
  font-variant-numeric: tabular-nums;
}

#timer.low {
  color: var(--red);
}

.proctor-note {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 9px 0 0;
  color: var(--muted);
  font: 500 10.5px/1.5 var(--mono);
  letter-spacing: 0.04em;
}

.proctor-note::before {
  content: "";
  flex: none;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 3px rgba(31, 91, 58, 0.14);
  animation: pulse 2.2s ease-in-out infinite;
}

.proctor-note.warn {
  color: var(--red);
}

.proctor-note.warn::before {
  background: var(--red);
  box-shadow: 0 0 0 3px rgba(166, 58, 47, 0.14);
  animation: none;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

.test-body {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 18px;
  align-items: start;
  margin-top: 18px;
}

#question-nav {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

#question-nav button {
  width: 44px;
  height: 44px;
  padding: 0;
  border-color: var(--rule-strong);
  border-radius: 2px;
  color: var(--ink-soft);
  font: 600 12px/1 var(--mono);
}

#question-nav button.answered {
  border-color: var(--green);
  background: var(--green-wash);
  color: var(--green-deep);
}

#question-nav button.active {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--paper);
  box-shadow: 3px 3px 0 var(--green);
}

#question-nav button.active:hover {
  background: var(--ink);
  color: var(--paper);
}

.challenge {
  position: relative;
  padding: 26px 26px 24px;
  border: 1px solid var(--rule-strong);
  background: rgba(255, 255, 255, 0.34);
  box-shadow: 7px 7px 0 rgba(25, 29, 24, 0.055);
}

.challenge::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 26px;
  right: 26px;
  height: 3px;
  background: var(--green);
}

.question-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--rule);
}

.question-number {
  color: var(--green);
  font: 600 9.5px/1.4 var(--mono);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.question-head h2 {
  margin: 0;
  font-size: 1.5rem;
  line-height: 1.1;
  letter-spacing: -0.01em;
  font-weight: 600;
  text-align: right;
}

#question-prompt {
  margin: 0 0 16px;
  max-width: 72ch;
  color: var(--ink-soft);
  font-size: 1.04rem;
}

#question-code {
  position: relative;
  margin: 0 0 18px;
  padding: 34px 20px 18px;
  overflow-x: auto;
  border: 1px solid var(--ink);
  background: var(--code-bg);
  color: var(--code-text);
  font: 13px/1.7 var(--mono);
  white-space: pre;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.04);
}

#question-code::before {
  content: "Java";
  position: absolute;
  top: 10px;
  left: 20px;
  color: #93a88f;
  font: 600 9px/1 var(--mono);
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

#question-options {
  display: grid;
  gap: 8px;
}

.option {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 14px;
  border: 1px solid var(--rule);
  background: rgba(255, 255, 255, 0.44);
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.option:hover {
  border-color: var(--ink);
  background: #fff;
}

.option input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.option-key {
  flex: none;
  width: 27px;
  height: 27px;
  display: grid;
  place-items: center;
  border: 1px solid var(--rule-strong);
  border-radius: 50%;
  background: var(--paper);
  color: var(--ink-soft);
  font: 600 11px/1 var(--mono);
}

.option-text {
  color: var(--ink);
  font-size: 1rem;
}

.option.selected {
  border-color: var(--green);
  background: var(--green-wash);
}

.option.selected .option-key {
  border-color: var(--green);
  background: var(--green);
  color: var(--paper);
}

.option:focus-within {
  outline: 2px solid var(--green);
  outline-offset: 2px;
}

.challenge-actions {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 22px;
  padding-top: 16px;
  border-top: 1px solid var(--rule);
}

.test-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--rule);
  color: var(--muted);
  font: 600 10px/1.5 var(--mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* Results */

.result-title-row {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 26px;
  margin-bottom: 10px;
}

.result-title-row h1 {
  margin: 0;
  font-size: clamp(3rem, 8vw, 5.4rem);
}

#results-title.fail {
  color: var(--red);
}

.stamp {
  display: inline-block;
  padding: 9px 13px;
  border: 3px double currentColor;
  color: var(--green);
  font: 700 11px/1 var(--mono);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  transform: rotate(-6deg);
  opacity: 0.85;
}

.stamp.fail {
  color: var(--red);
}

#results-summary {
  margin: 0 0 22px;
  max-width: 64ch;
  color: var(--ink-soft);
}

.certificate-link {
  display: inline-block;
  margin: 0 0 26px;
  padding-bottom: 2px;
  border-bottom: 1px solid currentColor;
  color: var(--green);
  font: 600 11px/1.4 var(--mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
}

#retry-btn {
  display: block;
  margin: 0 0 24px;
}

#results-list {
  list-style: none;
  margin: 0 0 30px;
  padding: 0;
  border-top: 1px solid var(--rule-strong);
}

.result {
  padding: 14px 0;
  border-bottom: 1px solid var(--rule);
}

.result-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.result-head .num {
  color: var(--muted);
  font: 600 10px/1 var(--mono);
  letter-spacing: 0.08em;
}

.result-head strong {
  flex: 1;
  font-size: 1.05rem;
  font-weight: 600;
}

.result-status {
  color: var(--green);
  font: 600 10px/1 var(--mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.result.fail .result-status {
  color: var(--red);
}

.result-detail {
  margin: 9px 0 0 22px;
  padding: 0 0 0 12px;
  list-style: none;
  display: grid;
  gap: 3px;
  border-left: 2px solid var(--red-wash);
  color: var(--muted);
  font-size: 0.9rem;
  overflow-wrap: anywhere;
}

.results-actions {
  display: flex;
  gap: 12px;
}

/* Hall of shame */

.record-page #app {
  min-height: auto;
}

.shame-wrap {
  position: relative;
  z-index: 1;
  width: min(760px, 100%);
  margin: 0 auto;
  padding: 64px 30px 80px;
}

.shame-head {
  margin-bottom: 30px;
}

.back-link {
  display: inline-block;
  margin-bottom: 30px;
  color: var(--muted);
  font: 600 10px/1.4 var(--mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
}

.back-link:hover {
  color: var(--ink);
}

.shame-head h1 {
  margin: 0 0 10px;
  font-size: clamp(2.6rem, 6vw, 3.8rem);
}

.shame-head .lede {
  margin: 0;
  font-size: 1.08rem;
}

.shame-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--rule-strong);
}

.shame-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--rule);
}

.shame-avatar {
  flex: none;
  border-radius: 50%;
  filter: grayscale(0.2);
}

.shame-who {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
}

.shame-who strong {
  font-size: 1.05rem;
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.shame-who span {
  color: var(--muted);
  font: 500 11px/1.5 var(--mono);
  letter-spacing: 0.02em;
}

.shame-tag {
  flex: none;
  padding: 3px 7px;
  border: 1px solid var(--red);
  color: var(--red);
  font: 700 9.5px/1.4 var(--mono);
  letter-spacing: 0.13em;
}

.shame-empty {
  margin: 0;
  padding: 22px 0;
  border-top: 1px solid var(--rule-strong);
  border-bottom: 1px solid var(--rule);
  color: var(--muted);
}

@media (max-width: 760px) {
  body::before {
    inset: 8px;
  }

  #app {
    padding: 44px 20px 60px;
  }

  .eyebrow {
    flex-direction: column;
    gap: 3px;
    margin-bottom: 30px;
  }

  .exam-meta {
    grid-template-columns: repeat(2, 1fr);
  }

  .exam-meta div:nth-child(2) {
    border-right: 0;
  }

  .exam-meta div:nth-child(3),
  .exam-meta div:nth-child(4) {
    border-top: 1px solid var(--rule);
  }

  .hud .title {
    display: none;
  }

  .test-body {
    grid-template-columns: 1fr;
  }

  #question-nav {
    flex-direction: row;
    flex-wrap: wrap;
  }

  #question-nav button {
    width: 38px;
    height: 38px;
  }

  .challenge {
    padding: 22px 18px;
  }

  .challenge::before {
    left: 18px;
    right: 18px;
  }

  .question-head {
    flex-direction: column;
    gap: 4px;
  }

  .question-head h2 {
    text-align: left;
  }

  .shame-wrap {
    padding: 48px 20px 64px;
  }

  .result-title-row {
    gap: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}