.reading-container {
  font-family: 'Segoe UI', sans-serif;
  background-size: auto;
  background-position: center;
  background-attachment: fixed;
  width: 100%;
  height: 100%;
}

.main-container {
  width: 85%;
  margin: 5vh auto;
  border: 9px solid var(--main-accent-color);
  border-radius: 1.5vw;
  background: #fff;
  padding: 2vw;
  box-shadow: 0 .4vw 1vw rgba(0,0,0,.1);
  height: 76vh;
  position: relative;
  background: #fff;
  overflow: visible;
}

.intro-section.split {
  padding-inline: 1vw;
  display: block;
}

.split-shell {
  width: 100%;
  max-width: none;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(320px, 38%) 1fr;
  align-items: center;
}

.split-left {
  display: grid;
  place-items: center;
}

.intro-illustration {
  width: 60%;
}

.hero-title {
  font-size: 2.5vw;
  font-weight: 800;
  color: #006780;
  margin-bottom: 20px;
  font-family: raleway;
}

.hero-copy {
  font-size: 1.4vw;
  text-align: justify;
  margin-bottom: 3vw;
}

.form-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 12px;
}

.row-label {
  min-width: 140px;
  font-weight: 700;
  color: #006780;
  font-size: 1.3vw;
}

.input-wrap, .select-wrap {
  position: relative;
  flex: 1;
}

  .input-wrap input,
  .select-wrap select {
    width: 100%;
    min-width: 220px;
    font-size: 1.1rem;
    padding: 14px 44px 14px 40px;
    border-radius: 12px;
    border: 1px solid #cfe2e0;
    background: #fff;
    color: #0e3e45;
    outline: 0;
    transition: border-color .2s, box-shadow .2s;
    box-sizing: border-box;
  }

  .select-wrap select,
  .select-wrap option {
    font-size: 1.1rem;
  }

  .input-wrap input::placeholder {
    color: #93a3b8;
  }

  .input-wrap input:focus, .select-wrap select:focus {
    border-color: #009688;
    box-shadow: 0 0 0 3px rgba(0,150,136,.12);
  }

.icon-search, .icon-level {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  opacity: .8;
  pointer-events: none;
}

  .icon-search::before {
    content: "🔎";
    font-size: 16px;
  }

  .icon-level::before {
    content: "🎯";
    font-size: 16px;
  }

.badge {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 12px;
  padding: 4px 8px;
  border-radius: 999px;
  border: 1px solid #cfe2e0;
  background: #f7fcfb;
  color: #0e3e45;
}

  .badge[data-level="easy"] {
    border-color: #bfe6d8;
    color: #1b7f57;
    background: #ecfbf4;
  }

  .badge[data-level="medium"] {
    border-color: #c7e3f4;
    color: #0b74a6;
    background: #eef8ff;
  }

  .badge[data-level="hard"] {
    border-color: #f9dfc8;
    color: #b35a11;
    background: #fff3e9;
  }

.intro-section.split .suggestion-box {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  z-index: 20;
  width: 100%;
  max-height: 200px;
  overflow: auto;
  padding: 6px;
  border-radius: 12px;
  border: 1px solid #cfe2e0;
  background: #fff;
  box-shadow: 0 12px 28px rgba(0,0,0,.12);
}

  .intro-section.split .suggestion-box span {
    display: block;
    padding: 10px 12px;
    border-radius: 10px;
    cursor: pointer;
    color: #0e3e45;
  }

    .intro-section.split .suggestion-box span:hover,
    .intro-section.split .suggestion-box span.active {
      background: #f1fbfa;
    }

.input-wrap.clearable {
  position: relative;
}

.input-wrap .has-clear {
  padding-right: 44px;
}

.clear-btn {
  right: 12px;
  top: 4px;
  position: absolute;
  background: #009688;
  border: none;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2vw;
  color: black;
  cursor: pointer;
  z-index: 2010;
  box-shadow: 0 2px 8px rgba(93, 145, 195, 0.18);
  transition: background 0.2s, color 0.2s;
}

  .clear-btn:hover {
    background: white;
    color: black;
    border: 3px solid #009688;
  }

@media (max-width: 980px) {
  .split-shell {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .row-label {
    min-width: 110px;
  }
}

:root {
  --passage-font: 21px;
}

.reading-head {
  display: grid;
  grid-template-columns: 44px 1fr auto;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
}

.reading-title {
  margin: 0;
  text-align: center;
  color: #006780;
  font-size: clamp(20px, 2.2vw, 39px);
  letter-spacing: .3px;
  font-weight: 800;
}

.head-actions {
  display: flex;
  gap: 8px;
}

  .head-actions .icon-btn {
    background: #f7fcfb;
    border: 1px solid #cfe2e0;
    border-radius: 8px;
    padding: 0.4em 1.1em;
    font-size: 1.2vw;
    color: #009688;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s, color 0.15s;
    outline: none;
    min-width: 2.5em;
    min-height: 2.5em;
    display: flex;
    align-items: center;
    justify-content: center;
  }

    .head-actions .icon-btn:hover,
    .head-actions .icon-btn.active {
      background: #e0f7f4;
      border-color: #009688;
      color: #00695c;
    }

    .head-actions .icon-btn[aria-pressed="true"] {
      background: #b2dfdb;
      color: #004d40;
    }

.reading-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 4px 4px 12px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 13px;
  border: 1px solid #d9ecea;
  background: #f7fcfb;
  color: #0e3e45;
}

.chip-level[data-level="easy"] {
  border-color: #bfe6d8;
  background: #ecfbf4;
  color: #1b7f57;
}

.chip-level[data-level="medium"] {
  border-color: #c7e3f4;
  background: #eef8ff;
  color: #0b74a6;
}

.chip-level[data-level="hard"] {
  border-color: #f9dfc8;
  background: #fff3e9;
  color: #b35a11;
}

.passage-shell {
  position: relative;
  border: 1px solid #e7f1f0;
  border-radius: 14px;
  background: #f3efef;
  padding: 14px 16px;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.7);
  max-height: 43vh;
  overflow: auto;
  font-size: 1.4vw;
  line-height: 1.8;
}

  .passage-shell::-webkit-scrollbar {
    width: 12px;
  }

  .passage-shell::-webkit-scrollbar-thumb {
    background: #cfe2e0;
    border-radius: 10px;
    border: 3px solid #fff;
  }

  .passage-shell::-webkit-scrollbar-track {
    background: #f7fcfb;
  }

.passage-text {
  font-family: Georgia, "Times New Roman", serif;
  font-size: var(--passage-font);
  line-height: 1.5;
  color: #1e3a3f;
  text-align: left;
  hyphens: auto;
  white-space: pre-wrap;
  word-wrap: break-word;
}

  .passage-text span {
    transition: background-color 0.3s ease;
  }

  .passage-text .highlight {
    background-color: yellow;
  }

  .passage-text::first-letter {
    float: left;
    font-size: 2.6em;
    line-height: .9;
    padding-right: 6px;
    padding-top: 2px;
    color: #0f7f78;
    font-weight: 700;
  }

.reading-actions {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin-top: 30px;
}

.back {
  grid-column: 1 / 2;
}

@media (max-width: 720px) {
  .reading-title {
    font-size: 22px;
  }
}

.mcq-card {
  width: 100%;
  margin: 0;
  background: #fff;
  border: 1px solid #d9ecea;
  border-radius: 16px;
  padding: 16px;
  box-shadow: 0 10px 24px rgba(0,0,0,.06);
}

.mcq-card__header {
  display: grid;
  grid-template-columns: 44px 1fr 44px;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
  font-size: 2vw;
}

.mcq-card__title {
  margin: 0;
  text-align: center;
  color: #0e3e45;
  font-weight: 800;
  letter-spacing: .2px;
}

.mcq-card__actions {
  display: flex;
  justify-content: flex-end;
}

.quiz-pill {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid #e6f0ef;
  background: #f8fbfb;
  color: #0e3e45;
  font-size: 1.5vw;
}

.quiz-question-pill {
  margin-bottom: 3vw;
}

.qq-label {
  font-weight: 700;
  color: #0b74a6;
  white-space: nowrap;
}

.qq-text {
  flex: 1;
  line-height: 1.6;
}

.quiz-options {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

@media (max-width: 720px) {
  .quiz-options {
    grid-template-columns: 1fr;
  }
}

.quiz-option-pill {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid #dfe9e7;
  background: #ffffff;
  cursor: pointer;
  transition: box-shadow .15s, transform .05s, border-color .15s, background .15s;
}

  .quiz-option-pill:hover {
    box-shadow: 0 8px 18px rgba(0,0,0,.06);
    background: #f7fbfb;
  }

  .quiz-option-pill .slot {
    font-weight: 700;
    color: #0b74a6;
    min-width: 26px;
  }

  .quiz-option-pill .opt-text {
    color: #0e3e45;
  }

  .quiz-option-pill.is-selected {
    border-color: #a8d8d3;
    background: #eefaf8;
  }

  .quiz-option-pill.is-correct {
    border-color: #6cc090;
    background: #ecfbf4;
  }

  .quiz-option-pill.is-incorrect {
    border-color: #f2b0a9;
    background: #fff1ef;
  }

.visually-hidden {
  position: absolute !important;
  inset: auto auto auto auto !important;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(1px,1px,1px,1px);
  white-space: nowrap;
}

.answer-status {
  display: flex;
  flex-wrap: wrap;
  align-items: normal;
  gap: 8px;
  margin-top: 12px;
  justify-content: center;
  font-size: 1vw;
  margin-top: 2vw;
}

.status-chip {
  padding: 6px 10px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 12px;
}

  .status-chip.ok {
    background: #ecfbf4;
    color: #1b7f57;
    border: 1px solid #bfe6d8;
  }

  .status-chip.nope {
    background: #ffe9e7;
    color: #b1241a;
    border: 1px solid #f4b2ab;
  }

.status-help {
  color: #3a5b60;
}

.mcq-card__footer {
  display: flex;
  gap: 10px;
  justify-content: end;
  margin-top: 6vw;
  align-items: flex-end;
  justify-content: space-between;
}

.loader-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
}

.loader {
  font-size: 15px;
  width: 1.5em;
  height: 1.5em;
  border-radius: 50%;
  position: relative;
  text-indent: -9999em;
  animation: mulShdSpin 1.1s infinite ease;
  transform: translateZ(0);
}

@keyframes mulShdSpin {
  0%, 100% {
    box-shadow: 0em -3em 0em 0em #808080, 2.2em -2.2em 0 0em rgba(128, 128, 128, 0.2), 3em 0em 0 0em rgba(128, 128, 128, 0.2), 2.2em 2.2em 0 0em rgba(128, 128, 128, 0.2), 0em 3em 0 0em rgba(128, 128, 128, 0.2), -2.2em 2.2em 0 0em rgba(128, 128, 128, 0.2), -3em 0em 0 0em rgba(128, 128, 128, 0.5), -2.2em -2.2em 0 0em rgba(128, 128, 128, 0.7);
  }

  12.5% {
    box-shadow: 0em -3em 0em 0em rgba(128, 128, 128, 0.7), 2.2em -2.2em 0 0em #808080, 3em 0em 0 0em rgba(128, 128, 128, 0.2), 2.2em 2.2em 0 0em rgba(128, 128, 128, 0.2), 0em 3em 0 0em rgba(128, 128, 128, 0.2), -2.2em 2.2em 0 0em rgba(128, 128, 128, 0.2), -3em 0em 0 0em rgba(128, 128, 128, 0.2), -2.2em -2.2em 0 0em rgba(128, 128, 128, 0.5);
  }

  25% {
    box-shadow: 0em -3em 0em 0em rgba(128, 128, 128, 0.5), 2.2em -2.2em 0 0em rgba(128, 128, 128, 0.7), 3em 0em 0 0em #808080, 2.2em 2.2em 0 0em rgba(128, 128, 128, 0.2), 0em 3em 0 0em rgba(128, 128, 128, 0.2), -2.2em 2.2em 0 0em rgba(128, 128, 128, 0.2), -3em 0em 0 0em rgba(128, 128, 128, 0.2), -2.2em -2.2em 0 0em rgba(128, 128, 128, 0.2);
  }

  37.5% {
    box-shadow: 0em -3em 0em 0em rgba(128, 128, 128, 0.2), 2.2em -2.2em 0 0em rgba(128, 128, 128, 0.5), 3em 0em 0 0em rgba(128, 128, 128, 0.7), 2.2em 2.2em 0 0em #808080, 0em 3em 0 0em rgba(128, 128, 128, 0.2), -2.2em 2.2em 0 0em rgba(128, 128, 128, 0.2), -3em 0em 0 0em rgba(128, 128, 128, 0.2), -2.2em -2.2em 0 0em rgba(128, 128, 128, 0.2);
  }

  50% {
    box-shadow: 0em -3em 0em 0em rgba(128, 128, 128, 0.2), 2.2em -2.2em 0 0em rgba(128, 128, 128, 0.2), 3em 0em 0 0em rgba(128, 128, 128, 0.5), 2.2em 2.2em 0 0em rgba(128, 128, 128, 0.7), 0em 3em 0 0em #808080, -2.2em 2.2em 0 0em rgba(128, 128, 128, 0.2), -3em 0em 0 0em rgba(128, 128, 128, 0.2), -2.2em -2.2em 0 0em rgba(128, 128, 128, 0.2);
  }

  62.5% {
    box-shadow: 0em -3em 0em 0em rgba(128, 128, 128, 0.2), 2.2em -2.2em 0 0em rgba(128, 128, 128, 0.2), 3em 0em 0 0em rgba(128, 128, 128, 0.2), 2.2em 2.2em 0 0em rgba(128, 128, 128, 0.5), 0em 3em 0 0em rgba(128, 128, 128, 0.7), -2.2em 2.2em 0 0em #808080, -3em 0em 0 0em rgba(128, 128, 128, 0.2), -2.2em -2.2em 0 0em rgba(128, 128, 128, 0.2);
  }

  75% {
    box-shadow: 0em -3em 0em 0em rgba(128, 128, 128, 0.2), 2.2em -2.2em 0 0em rgba(128, 128, 128, 0.2), 3em 0em 0 0em rgba(128, 128, 128, 0.2), 2.2em 2.2em 0 0em rgba(128, 128, 128, 0.2), 0em 3em 0 0em rgba(128, 128, 128, 0.5), -2.2em 2.2em 0 0em rgba(128, 128, 128, 0.7), -3em 0em 0 0em #808080, -2.2em -2.2em 0 0em rgba(128, 128, 128, 0.2);
  }

  87.5% {
    box-shadow: 0em -3em 0em 0em rgba(128, 128, 128, 0.2), 2.2em -2.2em 0 0em rgba(128, 128, 128, 0.2), 3em 0em 0 0em rgba(128, 128, 128, 0.2), 2.2em 2.2em 0 0em rgba(128, 128, 128, 0.2), 0em 3em 0 0em rgba(128, 128, 128, 0.2), -2.2em 2.2em 0 0em rgba(128, 128, 128, 0.5), -3em 0em 0 0em rgba(128, 128, 128, 0.7), -2.2em -2.2em 0 0em #808080;
  }
}

.popup-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
}

.popup-content {
  background-color: #fff;
  padding: 2vw;
  border-radius: 0.5vw;
  box-shadow: 0 0.4vw 0.8vw rgba(0, 0, 0, 0.3);
  text-align: center;
  max-width: 40vw;
  width: 80%;
}

  .popup-content p {
    font-size: 1.4vw;
    color: #dc3545;
    margin-bottom: 1vw;
  }

@keyframes popupScale {
  from {
    transform: scale(.96);
    opacity: .85;
  }

  to {
    transform: scale(1);
    opacity: 1;
  }
}

.input-wrap.locked input {
  background: #f7f9fb;
  border-color: #dfe9e7;
  color: #93a3b8;
  cursor: not-allowed;
}

.input-wrap.locked .icon-search {
  opacity: .5;
}

.input-wrap.locked::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 12px;
  pointer-events: auto;
}

.field-hint {
  margin: 6px 2px 0;
  font-size: 12px;
  color: #738a95;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.lock-icon::before {
  content: "🔒";
  font-size: 14px;
  line-height: 1;
}

.input-wrap .has-clear {
  padding-right: 44px;
}


.icon-img {
  width: 4.5vw;
  cursor: pointer;
  transition: transform 0.3s;
}

  .icon-img:hover, .icon-img:focus {
    transform: scale(1.1);
  }


.passage-text .highlight {
  background-color: yellow;
}

.congrats-overlay {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
}

.congrats-card {
  text-align: center;
  margin: 47px auto;
  padding: 40px;
  background: white;
  border-radius: 15px;
  width: 70vw;
  height: 70vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  font-family: 'Pacifico', cursive;
  position: relative;
  z-index: 1;
  box-shadow: 0 .4vw 1vw rgba(0, 0, 0, .1);
  border: 9px solid var(--main-accent-color);
  top: 3vw;
}

  .congrats-card h2 {
    margin: 8px 0 6px;
    color: #0e3e45;
    font-weight: 800;
    color: #4ca1af;
    margin-bottom: 15px;
    font-size: 2.5vw;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    text-align: center;
  }

  .congrats-card p {
    margin: 0 0 16px;
    color: #0e3e45;
    margin-bottom: 15px;
    font-size: 2.5vw;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    text-align: center;
  }

.score-badge {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  margin-bottom: 10px;
  padding: 10px 14px;
  border-radius: 999px;
  background: #eef7f6;
  color: #0e3e45;
  font-weight: 800;
  margin-bottom: 15px;
  font-size: 2.5vw;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  text-align: center;
}

.user-guide-close-icon {
  right: -21px;
  top: -21px;
}