:root {
  --toolbar: #294746;
  --toolbar-button: #355a58;
  --teal: #168d91;
  --teal-dark: #0b767a;
  --ink: #202527;
  --muted: #687276;
  --line: #d8dddd;
  --soft: #f4f7f7;
  --danger: #e3342f;
}

* { box-sizing: border-box; }
html, body { min-height: 100%; }
body {
  margin: 0;
  background: #fff;
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 16px;
}
button, input, textarea { font: inherit; }
button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 3px solid rgba(22, 141, 145, .28);
  outline-offset: 2px;
}

.toefl-toolbar {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: 10px 18px;
  background: var(--toolbar);
  color: #fff;
  border-bottom: 1px solid #183130;
}
.toefl-brand { display: flex; align-items: center; gap: 10px; min-width: 220px; }
.toefl-brand img {
  width: 42px;
  height: 42px;
  padding: 4px;
  border-radius: 7px;
  background: #fff;
  object-fit: contain;
}
.toefl-brand strong { display: block; font-size: 17px; letter-spacing: .05em; }
.toefl-brand span { display: block; margin-top: 2px; color: #d7e7e6; font-size: 11px; letter-spacing: .08em; }
.toefl-toolbar__actions { display: flex; align-items: center; gap: 8px; }
.exam-tool {
  min-width: 92px;
  min-height: 50px;
  padding: 0 18px;
  border: 1px solid rgba(255,255,255,.34);
  border-radius: 9px;
  background: var(--toolbar-button);
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
}
.exam-tool:hover { background: #406967; }
.exam-tool--primary { background: #fff; color: #315554; }
.exam-tool--primary:hover { background: #eef7f6; }
.exam-tool[hidden] { display: none; }

.toefl-statusbar {
  min-height: 38px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 0 18px;
  border-bottom: 2px solid var(--teal);
  background: #fafafa;
  font-size: 16px;
}
.status-divider { margin: 0 8px; color: #899194; }
.save-state {
  margin-left: 14px;
  color: #9a5b15;
  font-size: 12px;
  font-weight: 700;
}
.save-state.is-linked { color: var(--teal-dark); }
.timer-cluster { display: flex; align-items: center; gap: 13px; }
.timer-cluster strong { min-width: 78px; text-align: right; font-variant-numeric: tabular-nums; }
.timer-cluster button {
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--teal-dark);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
}

.audio-drawer {
  display: grid;
  grid-template-columns: minmax(180px, 1fr) minmax(320px, 620px);
  align-items: center;
  gap: 18px;
  padding: 11px 20px;
  border-bottom: 1px solid var(--line);
  background: var(--soft);
}
.audio-drawer[hidden] { display: none; }
.audio-drawer strong, .audio-drawer span { display: block; }
.audio-drawer span { margin-top: 4px; color: var(--muted); font-size: 12px; }
.audio-drawer audio { width: 100%; height: 36px; }

.toefl-stage {
  min-height: calc(100vh - 116px);
  padding: 54px 5vw 70px;
  background: #fff;
}
.question-shell { width: min(1180px, 100%); margin: 0 auto; }
.question-title {
  max-width: 860px;
  margin: 0 auto 40px;
  font-size: 22px;
  line-height: 1.45;
  text-align: center;
}
.question-directive {
  margin: 0 0 18px;
  color: var(--ink);
  font-size: 17px;
  font-weight: 700;
}
.question-source-number {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.reading-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(420px, .92fr);
  min-height: 600px;
  border: 1px solid #cfd5d5;
}
.reading-passage {
  max-height: calc(100vh - 200px);
  overflow: auto;
  padding: 42px 46px;
  border-right: 1px solid #cfd5d5;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 18px;
  line-height: 1.78;
  overflow-x: hidden;
  overflow-wrap: anywhere;
  white-space: pre-line;
}
.reading-question {
  padding: 42px 46px;
  overflow: auto;
}
.reading-question .question-title { margin: 0 0 28px; font-size: 19px; text-align: left; }

.option-list { display: grid; gap: 18px; max-width: 720px; margin: 0 auto; }
.reading-question .option-list { margin: 0; }
.option {
  display: grid;
  grid-template-columns: 23px 1fr;
  gap: 11px;
  align-items: start;
  cursor: pointer;
  line-height: 1.48;
}
.option input {
  width: 20px;
  height: 20px;
  margin: 1px 0 0;
  accent-color: var(--teal);
}
.option-key { margin-right: 4px; font-weight: 700; }

.listening-question { max-width: 900px; margin: 0 auto; }
.listening-question .question-title { margin-bottom: 54px; }
.listening-question .option-list { max-width: 620px; }

.fill-instructions { margin: 0 0 20px; color: var(--muted); line-height: 1.55; }
.fill-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px 16px; }
.fill-item { display: grid; grid-template-columns: 28px 1fr; align-items: center; gap: 8px; }
.fill-item span { color: var(--muted); font-weight: 700; text-align: right; }
.fill-item input {
  min-height: 42px;
  padding: 8px 10px;
  border: 1px solid #9ba5a6;
  border-radius: 2px;
  background: #fff;
}

.writing-shell { max-width: 980px; margin: 0 auto; }
.writing-shell > .question-title { margin-bottom: 45px; }
.dialogue-panel {
  display: grid;
  grid-template-columns: 78px 1fr;
  gap: 22px;
  align-items: center;
  width: min(800px, 100%);
  margin: 0 auto 30px;
}
.speaker-avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  object-fit: cover;
}
.speech-card {
  padding: 0;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.55;
}
.order-answer {
  min-height: 48px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding: 8px 0;
  border-bottom: 1px solid #555f61;
}
.order-placeholder { color: #8a9395; font-size: 15px; }
.word-bank {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  width: min(720px, 100%);
  margin: 38px auto 0;
}
.word-token {
  min-height: 38px;
  padding: 7px 15px;
  border: 1px solid #757f81;
  border-radius: 3px;
  background: #fff;
  color: var(--ink);
  cursor: pointer;
}
.word-token:hover { border-color: var(--teal); background: #f2fbfb; }
.word-token[disabled] { opacity: .32; cursor: default; }
.order-answer .word-token { border-color: var(--teal); background: #eefafa; }

.free-layout {
  display: grid;
  grid-template-columns: minmax(0, .92fr) minmax(460px, 1.08fr);
  min-height: 610px;
  border: 1px solid #cfd5d5;
}
.free-prompt {
  max-height: calc(100vh - 200px);
  overflow: auto;
  padding: 34px 38px;
  border-right: 1px solid #cfd5d5;
  line-height: 1.62;
  white-space: pre-wrap;
}
.free-editor { display: flex; flex-direction: column; padding: 34px 38px 18px; }
.free-editor textarea {
  width: 100%;
  flex: 1 1 auto;
  min-height: 430px;
  resize: none;
  padding: 16px;
  border: 1px solid #8e989a;
  line-height: 1.6;
}
.word-count { margin-top: 10px; color: var(--muted); font-size: 13px; text-align: right; }

.speaking-shell { max-width: 900px; margin: 0 auto; text-align: center; }
.speaking-shell .question-title { max-width: 760px; margin: 32px auto; line-height: 1.5; }
.speaking-context {
  max-width: 760px;
  margin: 18px auto;
  padding: 18px 22px;
  border: 1px solid #cfd5d5;
  background: #f6f8f8;
  color: var(--muted);
  line-height: 1.6;
}
.recording-panel {
  max-width: 620px;
  margin: 34px auto 0;
  padding: 28px;
  border: 1px solid #cfd5d5;
  border-radius: 12px;
  background: #fff;
}
.recording-status { margin-bottom: 18px; color: var(--teal-dark); font-weight: 800; }
.recording-actions { display: flex; justify-content: center; gap: 12px; }
.record-button {
  min-width: 150px;
  min-height: 44px;
  border: 0;
  border-radius: 6px;
  background: var(--teal);
  color: #fff;
  font-weight: 700;
  cursor: pointer;
}
.record-button--stop { background: var(--danger); }
.record-button[disabled] { opacity: .45; cursor: default; }
.recording-playback { width: 100%; margin-top: 22px; }
.recording-score {
  display: grid;
  gap: 5px;
  margin-top: 18px;
  padding: 14px 16px;
  border: 1px solid #b7d9d7;
  border-radius: 8px;
  background: #eef8f7;
  text-align: left;
}
.recording-score strong { color: var(--teal-dark); font-size: 18px; }
.recording-score span { color: var(--ink); font-size: 13px; line-height: 1.55; }
.recording-score--pending_review {
  border-color: #e2c989;
  background: #fff8e8;
}
.recording-note { margin: 18px 0 0; color: var(--muted); font-size: 13px; line-height: 1.55; }

.module-intro { max-width: 900px; margin: 70px auto 0; text-align: center; }
.module-intro__eyebrow {
  margin: 0 0 12px !important;
  color: var(--teal-dark) !important;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.module-intro h1 { margin: 0 0 20px; font-size: 24px; }
.module-intro p { max-width: 650px; margin: 0 auto 34px; color: var(--muted); line-height: 1.7; }
.start-button, .modal-button {
  min-width: 190px;
  min-height: 48px;
  padding: 0 24px;
  border: 0;
  border-radius: 8px;
  background: var(--teal);
  color: #fff;
  font-weight: 700;
  cursor: pointer;
}
.start-button:hover, .modal-button:hover { background: var(--teal-dark); }

.exam-modal[hidden] { display: none; }
.exam-modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(18, 25, 27, .48);
}
.exam-modal__card {
  width: min(520px, 100%);
  padding: 48px 56px;
  border-radius: 24px;
  background: #fff;
  box-shadow: 0 28px 80px rgba(0,0,0,.24);
  text-align: center;
}
.exam-modal__card--wide { width: min(760px, 100%); text-align: left; }
.exam-modal__card--alert { text-align: left; }
.exam-modal__card--report {
  width: min(900px, 100%);
  max-height: calc(100vh - 48px);
  overflow-y: auto;
  text-align: left;
}
.exam-modal__card h2 { margin: 0 0 24px; font-size: 22px; line-height: 1.45; }
.exam-modal__card p { color: var(--muted); line-height: 1.65; }
.exam-modal__card--alert .modal-button { display: block; margin: 34px auto 0; }
.modal-kicker { margin: 0 0 12px !important; color: var(--ink) !important; font-size: 19px; font-weight: 800; }
.exam-modal__card--alert .modal-kicker { color: var(--danger) !important; }
.modal-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 20px; }
.modal-close {
  min-height: 38px;
  padding: 0 15px;
  border: 1px solid #9aa4a6;
  border-radius: 5px;
  background: #fff;
  cursor: pointer;
}
.modal-button--link { display: inline-flex; align-items: center; justify-content: center; text-decoration: none; }
.review-grid { display: grid; grid-template-columns: repeat(8, minmax(0, 1fr)); gap: 9px; margin-top: 18px; }
.review-item {
  aspect-ratio: 1;
  border: 1px solid #9ba5a6;
  border-radius: 4px;
  background: #fff;
  color: var(--ink);
  font-weight: 700;
  cursor: pointer;
}
.review-item.is-answered { border-color: var(--teal); background: #e8f7f7; color: var(--teal-dark); }
.review-item.is-current { box-shadow: inset 0 0 0 2px var(--teal); }
.result-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
  margin: 24px 0;
}
.result-metric {
  padding: 16px 18px;
  border: 1px solid #d9e1e1;
  border-radius: 10px;
  background: #f7fafa;
}
.result-metric span, .result-breakdown__item span, .wrong-answer__heading span,
.wrong-answer__response span {
  display: block;
  color: var(--muted);
  font-size: 13px;
}
.result-metric strong { display: block; margin-top: 5px; font-size: 24px; }
.result-section { margin: 28px 0; }
.result-section h3 { margin: 0 0 12px; font-size: 17px; }
.result-breakdown { display: grid; gap: 9px; }
.result-breakdown__item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 13px 16px;
  border: 1px solid #d9e1e1;
  border-radius: 8px;
}
.result-breakdown__item b { color: var(--teal-dark); font-size: 18px; }
.wrong-answer-list { display: grid; gap: 14px; }
.wrong-answer {
  padding: 17px 18px;
  border: 1px solid #e2e5e5;
  border-radius: 10px;
  background: #fff;
}
.wrong-answer__heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}
.wrong-answer p { margin: 12px 0 !important; color: var(--ink) !important; }
.wrong-answer__response {
  display: grid;
  grid-template-columns: 76px 1fr;
  gap: 10px;
  padding: 8px 10px;
  border-radius: 6px;
}
.wrong-answer__response.is-wrong { background: #fff2f1; color: #9d2c24; }
.wrong-answer__response.is-correct { margin-top: 6px; background: #edf8f5; color: #176850; }
.exam-modal__card--report > .modal-button { margin-top: 6px; }

@media (max-width: 900px) {
  .toefl-toolbar { align-items: flex-start; flex-direction: column; }
  .toefl-toolbar__actions { width: 100%; overflow-x: auto; }
  .exam-tool { min-width: 82px; min-height: 44px; }
  .reading-layout, .free-layout { grid-template-columns: 1fr; }
  .reading-passage, .free-prompt { max-height: 42vh; border-right: 0; border-bottom: 1px solid #cfd5d5; }
  .free-editor textarea { min-height: 360px; }
  .audio-drawer { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  .toefl-stage { padding: 34px 18px 56px; }
  .toefl-statusbar { align-items: flex-start; flex-direction: column; padding: 9px 14px; }
  .reading-passage, .reading-question, .free-prompt, .free-editor { padding: 24px 22px; }
  .fill-grid { grid-template-columns: 1fr; }
  .dialogue-panel { grid-template-columns: 1fr; }
  .review-grid { grid-template-columns: repeat(5, minmax(0, 1fr)); }
  .exam-modal__card { padding: 36px 28px; }
  .wrong-answer__heading { align-items: flex-start; flex-direction: column; gap: 4px; }
  .wrong-answer__response { grid-template-columns: 1fr; gap: 3px; }
  .toefl-toolbar__actions { overflow: visible; }
  .exam-tool {
    flex: 1 1 0;
    min-width: 0;
    padding: 0 8px;
  }
}