:root {
  color-scheme: light;
  --ink: #222820;
  --muted: #73786f;
  --paper: #f7f6f1;
  --card: #fffefa;
  --green: #355b48;
  --green-dark: #294a38;
  --green-light: #e7eee8;
  --orange: #e88b58;
  --line: #e8e7df;
  --red: #ad533e;
  font-family: "Segoe UI", Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(ellipse at 12% 8%, #eee9dc 0, transparent 30rem),
    var(--paper);
}

button, input { font: inherit; }
button { color: inherit; }

button:focus-visible, input:focus-visible {
  outline: 3px solid var(--orange);
  outline-offset: 3px;
}

.page {
  width: min(100% - 48px, 1060px);
  min-height: 100vh;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
}

.site-header {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 750;
  letter-spacing: -.04em;
  text-decoration: none;
}

.brand-mark {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  color: white;
  background: var(--green);
  border-radius: 11px;
  font-size: 19px;
}

.prototype-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 11px;
  color: #59645b;
  background: #edf0e9;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 650;
}

.status-dot, .open-status span {
  width: 7px;
  height: 7px;
  display: inline-block;
  background: #d39349;
  border-radius: 50%;
}

main { flex: 1; padding: 28px 0 42px; }

.prototype-notice {
  max-width: 800px;
  margin: 0 auto 27px;
  padding: 12px 15px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: #5e5b4c;
  background: #f2eee0;
  border: 1px solid #e8e2ce;
  border-radius: 12px;
  font-size: 13px;
  line-height: 1.5;
}

.prototype-notice p { margin: 0; }
.notice-icon {
  flex: 0 0 19px;
  width: 19px;
  height: 19px;
  display: grid;
  place-items: center;
  color: white;
  background: #9c8750;
  border-radius: 50%;
  font-size: 12px;
  font-weight: 750;
}

.role-switch {
  width: fit-content;
  margin: 0 auto 43px;
  padding: 4px;
  display: flex;
  gap: 3px;
  background: #eeece5;
  border-radius: 12px;
}

.role-button {
  min-height: 38px;
  padding: 0 20px;
  color: var(--muted);
  background: transparent;
  border: 0;
  border-radius: 9px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 650;
}

.role-button.active {
  color: var(--green-dark);
  background: white;
  box-shadow: 0 2px 6px rgb(46 44 35 / 8%);
}

.hidden { display: none !important; }

#teacher-view, #student-view { animation: arrive .25s ease both; }
@keyframes arrive { from { opacity: 0; transform: translateY(5px); } to { opacity: 1; transform: translateY(0); } }

.welcome-row {
  min-height: 255px;
  padding: 42px 50px;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #eaf0e8;
  border: 1px solid #e2e9df;
  border-radius: 24px;
}

.welcome-row::after {
  width: 360px;
  height: 360px;
  position: absolute;
  right: 3%;
  bottom: -240px;
  background: rgb(255 255 255 / 28%);
  border: 1px solid rgb(255 255 255 / 45%);
  border-radius: 50%;
  content: "";
}

.eyebrow {
  margin: 0;
  color: var(--green);
  font-size: 11px;
  font-weight: 750;
  letter-spacing: .13em;
  text-transform: uppercase;
}

h1 {
  margin: 12px 0 10px;
  font-size: clamp(36px, 5vw, 54px);
  letter-spacing: -.065em;
  line-height: 1.04;
}

.intro {
  max-width: 490px;
  margin: 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.65;
}

.welcome-art {
  width: 170px;
  height: 170px;
  flex: 0 0 170px;
  position: relative;
  margin-right: 22px;
  display: grid;
  place-items: center;
  background: #d9e5d9;
  border: 1px solid rgb(255 255 255 / 70%);
  border-radius: 50%;
  transform: rotate(-8deg);
}

.welcome-art span:nth-child(1), .welcome-art span:nth-child(3) {
  position: absolute;
  color: var(--orange);
  font-size: 25px;
}

.welcome-art span:nth-child(1) { top: 20px; right: 13px; }
.welcome-art span:nth-child(3) { bottom: 22px; left: 16px; font-size: 18px; }
.welcome-art span:nth-child(2) { color: var(--green); font-size: 80px; font-weight: 750; }

.section-heading, .editor-heading {
  margin: 39px 0 17px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.section-heading h2, .editor-heading h2, .join-card h2 {
  margin: 0;
  font-size: 21px;
  letter-spacing: -.04em;
}

.section-heading p, .editor-heading p {
  margin: 5px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.primary-button, .secondary-button {
  min-height: 46px;
  padding: 0 17px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 11px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
  transition: background .16s, color .16s, transform .16s;
}

.primary-button {
  color: white;
  background: var(--green);
  border: 1px solid var(--green);
}

.primary-button:hover { background: var(--green-dark); transform: translateY(-1px); }

.secondary-button {
  color: #465248;
  background: #fffefa;
  border: 1px solid var(--line);
}

.secondary-button:hover { background: #f5f4ee; }

.test-list { display: grid; gap: 13px; }

.test-card {
  padding: 20px 22px 15px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 17px;
  box-shadow: 0 5px 19px rgb(52 48 36 / 3%);
}

.test-card-main { display: flex; align-items: center; gap: 14px; }

.test-card-icon, .join-card-icon {
  width: 44px;
  height: 44px;
  flex: 0 0 44px;
  display: grid;
  place-items: center;
  color: var(--green);
  background: var(--green-light);
  border-radius: 13px;
  font-size: 19px;
}

.test-card-title { min-width: 0; flex: 1; }
.test-title-line { display: flex; align-items: center; flex-wrap: wrap; gap: 9px; }
.test-card-title h3 { margin: 0; font-size: 16px; letter-spacing: -.025em; }
.test-card-title p { margin: 5px 0 0; color: var(--muted); font-size: 12px; }

.sample-badge {
  padding: 4px 7px;
  color: #79653e;
  background: #f5f0e2;
  border-radius: 999px;
  font-size: 10px;
  font-weight: 700;
}

.open-status {
  padding: 7px 10px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: #77786e;
  background: #f1f0eb;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 650;
}

.open-status.is-open { color: #42634a; background: #eaf1e9; }
.open-status.is-open span { background: #5c9865; }
.open-status:not(.is-open) span { background: #96978d; }

.test-card-bottom {
  margin: 15px 0 0 58px;
  padding-top: 13px;
  display: flex;
  align-items: center;
  gap: 17px;
  border-top: 1px solid #f0eee8;
}

.share-code { display: grid; gap: 2px; }
.share-code span { color: #8a8b81; font-size: 9px; font-weight: 750; letter-spacing: .1em; }
.share-code strong { color: var(--green); font-size: 15px; letter-spacing: .12em; }
.test-meta { color: var(--muted); font-size: 12px; }
.test-actions { margin-left: auto; display: flex; align-items: center; gap: 12px; }
.small-button { min-height: 34px; padding: 0 11px; font-size: 11px; }
.text-button, .back-button {
  padding: 6px 0;
  color: var(--green);
  background: transparent;
  border: 0;
  cursor: pointer;
  font-size: 12px;
  font-weight: 700;
}

.text-button:hover, .back-button:hover { color: var(--green-dark); text-decoration: underline; }
.status-action { color: #73766e; }

.empty-state {
  padding: 42px 20px;
  text-align: center;
  background: var(--card);
  border: 1px dashed #d9d8cd;
  border-radius: 17px;
}

.empty-state-icon, .join-card-icon { margin: 0 auto 14px; }
.empty-state-icon { color: var(--green); font-size: 28px; }
.empty-state h3 { margin: 0; font-size: 18px; }
.empty-state p { margin: 7px 0 18px; color: var(--muted); font-size: 13px; }
.demo-reset-row { margin-top: 15px; display: flex; justify-content: flex-end; }
.demo-reset-row .text-button { color: #77786e; font-size: 11px; }

.panel {
  width: min(100%, 760px);
  margin: 0 auto;
  padding: clamp(24px, 5vw, 43px);
  background: var(--card);
  border: 1px solid #eeece4;
  border-radius: 22px;
  box-shadow: 0 16px 55px rgb(52 48 36 / 5%);
}

.panel > .back-button { margin-bottom: 28px; }
.panel > h1 { font-size: clamp(34px, 5vw, 46px); }
.panel > .intro { margin-bottom: 25px; }

.field-label {
  margin: 16px 0 7px;
  display: block;
  color: #454a42;
  font-size: 12px;
  font-weight: 700;
}

input[type="text"], input[type="number"] {
  width: 100%;
  min-height: 45px;
  padding: 10px 12px;
  color: var(--ink);
  background: white;
  border: 1px solid #deded5;
  border-radius: 9px;
}

input::placeholder { color: #a0a097; }

.editor-heading {
  margin: 30px 0 15px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.question-count-pill {
  padding: 7px 10px;
  color: #59645b;
  background: #edf0e9;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 650;
  white-space: nowrap;
}

.question-editor-list { display: grid; gap: 14px; }

.question-editor {
  min-width: 0;
  margin: 0;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 13px;
}

.question-editor-top { display: flex; align-items: center; justify-content: space-between; }
.question-editor legend { padding: 0; font-size: 14px; font-weight: 750; }
.remove-question { color: var(--red); background: transparent; border: 0; cursor: pointer; font-size: 11px; }
.question-editor .field-label { margin-top: 14px; }
.answer-instruction { display: flex; justify-content: space-between; }
.answer-instruction span { color: #99998f; font-size: 10px; font-weight: 500; }
.answer-editor-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 9px; }
.answer-editor-option { min-width: 0; position: relative; }
.answer-editor-option > input[type="radio"] { position: absolute; top: 15px; left: 12px; accent-color: var(--green); }
.answer-editor-option > input[type="text"] { padding-left: 35px; font-size: 12px; }

.question-settings { margin-top: 15px; display: flex; gap: 20px; }
.question-settings label { width: min(50%, 180px); display: grid; gap: 6px; color: #686d65; font-size: 11px; font-weight: 650; }
.input-with-suffix { display: flex; align-items: center; gap: 7px; color: var(--muted); }
.input-with-suffix input { max-width: 94px; min-height: 37px; }
.input-with-suffix span { font-size: 11px; font-weight: 500; }

.add-question-button { margin-top: 13px; }
.editor-actions { margin-top: 28px; display: flex; justify-content: flex-end; gap: 10px; }

.join-layout {
  max-width: 850px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr minmax(290px, 370px);
  align-items: center;
  gap: clamp(32px, 8vw, 86px);
}

.join-copy h1 { font-size: clamp(42px, 6vw, 60px); }
.join-copy .intro { max-width: 350px; }
.join-points { margin-top: 30px; display: grid; gap: 13px; }
.join-points > div { display: flex; align-items: center; gap: 11px; color: #50564e; font-size: 13px; }
.point-icon {
  width: 29px;
  height: 29px;
  display: grid;
  place-items: center;
  color: var(--green);
  background: #e8eee6;
  border-radius: 9px;
  font-size: 10px;
  font-weight: 750;
}

.join-card {
  padding: 28px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 19px;
  box-shadow: 0 15px 45px rgb(52 48 36 / 6%);
}

.join-card-icon { width: 43px; height: 43px; margin: 0 0 19px; font-size: 22px; }
.join-card h2 { font-size: 23px; }
.join-card > p:not(.form-message) { margin: 6px 0 17px; color: var(--muted); font-size: 13px; }
.join-card .field-label { margin-top: 14px; }
.join-card input { min-height: 47px; }
#join-code { text-transform: uppercase; letter-spacing: .1em; }
.full-width { width: 100%; margin-top: 16px; }
.form-message { margin: 12px 0 0; color: var(--red); font-size: 12px; line-height: 1.5; }

.ready-reminder {
  margin: 16px 0 22px;
  padding: 12px 14px;
  color: #626251;
  background: #f4f1e7;
  border-radius: 10px;
  font-size: 12px;
  line-height: 1.55;
}

.details { display: flex; flex-wrap: wrap; gap: 8px; }
.detail {
  padding: 8px 11px;
  color: #555a52;
  background: #f4f2eb;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 650;
}

.quiz-topline { margin-bottom: 12px; display: flex; justify-content: space-between; color: var(--muted); font-size: 12px; font-weight: 700; }
.progress-track, .timer-track { height: 7px; overflow: hidden; background: #eeece5; border-radius: 99px; }
.progress-bar, .timer-bar { width: 0; height: 100%; background: var(--green); border-radius: inherit; transition: width .2s linear; }
.timer-row { margin: 24px 0 7px; display: flex; justify-content: space-between; color: var(--muted); font-size: 12px; font-weight: 650; }
.timer-value { color: var(--green); font-weight: 750; font-variant-numeric: tabular-nums; }
.timer-bar { background: #719879; }
.timer-bar.timer-warning { background: var(--orange); }
.timer-warning-text { color: var(--red); }

.question-title {
  margin: 25px 0 8px;
  font-size: clamp(24px, 5vw, 32px);
  letter-spacing: -.04em;
  line-height: 1.2;
}

.question-copy { margin: 0 0 19px; color: var(--muted); font-size: 14px; }
.answers { display: grid; gap: 10px; }

.answer {
  width: 100%;
  min-height: 53px;
  padding: 11px 14px;
  display: flex;
  align-items: center;
  gap: 11px;
  color: var(--ink);
  text-align: left;
  background: white;
  border: 1px solid var(--line);
  border-radius: 11px;
  cursor: pointer;
  transition: border-color .15s, background .15s;
}

.answer:hover:not(:disabled) { border-color: #9baa9c; background: #fbfcf9; }
.answer:disabled { cursor: default; }
.answer-letter {
  width: 27px;
  height: 27px;
  flex: 0 0 27px;
  display: grid;
  place-items: center;
  color: var(--muted);
  background: #f3f1eb;
  border-radius: 8px;
  font-size: 11px;
  font-weight: 750;
}

.answer.correct { border-color: #7d9d83; background: var(--green-light); }
.answer.correct .answer-letter { color: white; background: var(--green); }
.answer.incorrect { border-color: #dcaa8e; background: #fbf0e9; }
.feedback { min-height: 20px; margin: 14px 0 9px; color: var(--green); font-size: 13px; font-weight: 650; }
.feedback.wrong { color: var(--red); }
.quiz-actions { display: flex; justify-content: flex-end; }

.result-icon {
  width: 56px;
  height: 56px;
  display: grid;
  place-items: center;
  color: #9b653a;
  background: #f6e8d8;
  border-radius: 17px;
  font-size: 27px;
}

.result-eyebrow { margin-top: 22px; }
.score-line { margin: 11px 0 23px; color: var(--muted); font-size: 17px; }
.score-line strong { color: var(--green); }
.result-details { margin-bottom: 22px; display: flex; flex-wrap: wrap; gap: 12px; }
.result-details > div { min-width: 135px; padding: 13px 15px; display: grid; gap: 3px; background: #f4f3ed; border-radius: 12px; }
.result-details strong { color: var(--green); font-size: 20px; }
.result-details span { color: var(--muted); font-size: 11px; }

.results-table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 12px; }
.results-table { width: 100%; border-collapse: collapse; text-align: left; }
.results-table th { padding: 12px 14px; color: #72766e; background: #f7f6f1; font-size: 10px; letter-spacing: .06em; text-transform: uppercase; }
.results-table td { padding: 13px 14px; border-top: 1px solid var(--line); font-size: 12px; white-space: nowrap; }
.results-table td strong { color: var(--green); }
.student-avatar { width: 27px; height: 27px; margin-right: 8px; display: inline-grid; place-items: center; color: var(--green); background: var(--green-light); border-radius: 50%; font-weight: 750; }
.score-percent { margin-left: 8px; color: var(--muted); font-size: 11px; }
.empty-message { padding: 22px; color: var(--muted); text-align: center; font-size: 13px; background: #f7f6f1; border-radius: 12px; }

.app-message {
  max-width: 760px;
  margin: 20px auto 0;
  padding: 12px 15px;
  color: #803e30;
  background: #fbefea;
  border: 1px solid #eed6cc;
  border-radius: 10px;
  font-size: 13px;
  line-height: 1.5;
}

footer { padding: 20px 0; color: #85877f; text-align: center; border-top: 1px solid var(--line); font-size: 11px; }

@media (max-width: 700px) {
  .page { width: min(100% - 30px, 1060px); }
  .welcome-row { min-height: 220px; padding: 32px; }
  .welcome-art { width: 125px; height: 125px; flex-basis: 125px; margin-right: 0; }
  .welcome-art span:nth-child(2) { font-size: 62px; }
  .test-card-bottom { margin-left: 0; flex-wrap: wrap; }
  .test-actions { width: 100%; margin: 3px 0 0; padding-top: 10px; justify-content: flex-start; border-top: 1px solid #f0eee8; }
  .join-layout { grid-template-columns: 1fr minmax(260px, 330px); gap: 24px; }
  .join-copy h1 { font-size: 46px; }
}

@media (max-width: 540px) {
  .page { width: min(100% - 24px, 1060px); }
  .site-header { min-height: 68px; }
  .prototype-label { padding: 7px 9px; font-size: 10px; }
  main { padding-top: 18px; }
  .prototype-notice { margin-bottom: 19px; padding: 10px 11px; font-size: 11px; }
  .role-switch { margin-bottom: 24px; }
  .role-button { padding: 0 16px; }
  .welcome-row { min-height: 0; padding: 27px 22px; }
  .welcome-art { width: 76px; height: 76px; flex-basis: 76px; }
  .welcome-art span:nth-child(2) { font-size: 42px; }
  .welcome-art span:nth-child(1) { top: 7px; right: 6px; font-size: 17px; }
  .welcome-art span:nth-child(3) { bottom: 7px; left: 7px; font-size: 13px; }
  h1 { font-size: 39px; }
  .welcome-row .intro { font-size: 13px; }
  .section-heading { align-items: flex-start; }
  .section-heading h2 { font-size: 18px; }
  .section-heading p { max-width: 190px; font-size: 11px; }
  .section-heading .primary-button { min-height: 40px; padding: 0 11px; font-size: 11px; white-space: nowrap; }
  .test-card { padding: 15px; }
  .test-card-title h3 { font-size: 14px; }
  .test-card-icon { width: 38px; height: 38px; flex-basis: 38px; }
  .open-status { padding: 6px 8px; font-size: 10px; }
  .test-card-bottom { gap: 12px; }
  .test-actions { gap: 13px; flex-wrap: wrap; }
  .panel { padding: 24px 19px; border-radius: 17px; }
  .join-layout { grid-template-columns: 1fr; gap: 26px; }
  .join-copy h1 { font-size: 43px; }
  .join-points { margin-top: 20px; grid-template-columns: 1fr; gap: 9px; }
  .join-card { padding: 23px; }
  .question-editor { padding: 13px; }
  .answer-editor-grid { grid-template-columns: 1fr; gap: 7px; }
  .answer-editor-option > input[type="text"] { min-height: 41px; }
  .question-settings { gap: 10px; }
  .editor-actions { justify-content: stretch; }
  .editor-actions button { flex: 1; }
  .results-table th, .results-table td { padding: 11px 9px; font-size: 10px; }
  .score-percent { margin-left: 4px; font-size: 9px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; }
}