/* =========================================================
   PHANTOM MOUNTAIN — PHANTOM INDEX
   Clean reading layout
========================================================= */

:root {
  --phantom-content-width: 1200px;
  --phantom-muted: 0.52;
}

.phantom-index-page {
  min-height: 100vh;
  padding: 125px 150px 140px;
}

.phantom-index-title {
  position: fixed;
  top: 24px;
  left: 50%;
  z-index: 20;
  transform: translateX(-50%);
  text-align: center;
  pointer-events: none;
}

.phantom-index-title h1,
.phantom-index-title span {
  display: block;
  margin: 0;
  font: inherit;
  line-height: 1.5;
  letter-spacing: 0.06em;
}

.phantom-index-title span {
  opacity: var(--phantom-muted);
}

/* =========================================================
   NOVEL — CONTINUOUS PROSE
========================================================= */

.phantom-novel {
  width: min(100%, var(--phantom-content-width));
  margin: 0 auto;
  color: var(--text);
  text-align: left;
}

.novel-language-section {
  width: 100%;
  margin: 0 auto;
}

.novel-language-en {
  margin-top: 96px;
  opacity: 0.72;
}

.novel-flow {
  font: inherit;
  line-height: 1.65;
  word-break: keep-all;
  overflow-wrap: anywhere;
}

.novel-paragraph {
  margin: 0 0 34px;
  padding: 0;
  text-align: left;
  text-indent: 0;
}

.novel-paragraph:last-child {
  margin-bottom: 0;
}

.novel-prose {
  color: var(--text);
}

.response-button {
  display: inline;
  border: 0;
  padding: 0;
  margin: 0;
  color: var(--text);
  background: transparent;
  font: inherit;
  font-style: italic;
  line-height: inherit;
  text-align: inherit;
  cursor: pointer;
  transition: opacity 160ms ease;
}

.response-button:hover,
.response-button:focus-visible {
  opacity: 0.58;
  text-decoration: none;
}

.response-blank {
  display: inline-block;
  width: 58px;
  height: 1em;
  vertical-align: -0.12em;
  background: rgba(189, 189, 189, 0.16);
  font-style: normal;
}

/* =========================================================
   MODAL — ENGLISH ONLY
========================================================= */

body.phantom-modal-open {
  overflow: hidden;
}

.phantom-modal {
  position: fixed;
  inset: 0;
  z-index: 1200;
  display: none;
  overflow-y: auto;
  overscroll-behavior: contain;
}

.phantom-modal.is-open {
  display: block;
}

.phantom-modal-background {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
  padding: 0;
  background: rgba(12, 12, 12, 0.97);
}

.phantom-modal-close {
  position: fixed;
  top: 24px;
  right: 30px;
  z-index: 3;
  border: 0;
  padding: 0;
  color: inherit;
  background: transparent;
  font: inherit;
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
}

.phantom-modal-inner {
  position: relative;
  z-index: 1;
  width: min(820px, calc(100% - 100px));
  min-height: 100vh;
  margin: 0 auto;
  padding: 22px 0 30px;
  display: flex;
  flex-direction: column;
}

.phantom-modal-header {
  margin-bottom: 72px;
  text-align: center;
}

.phantom-modal-header h2,
.phantom-modal-header span {
  display: block;
  margin: 0;
  font: inherit;
  line-height: 1.15;
  letter-spacing: 0.04em;
}

.phantom-modal-header span {
  margin-top: 4px;
  opacity: var(--phantom-muted);
}

.phantom-survey {
  width: min(100%, 700px);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: 34px;
  row-gap: 28px;
  align-items: start;
  font-size: 10pt;
  line-height: 1.15;
}

.survey-item {
  min-width: 0;
  margin: 0;
  break-inside: avoid;
}

.survey-question-ko,
.survey-answer-ko {
  display: none;
}

.survey-question-en,
.survey-answer-en {
  margin: 0;
  font-size: 10pt;
  line-height: 1.15;
}

.survey-question-en {
  opacity: 0.48;
}

.survey-answer-en {
  margin-top: 9px;
  color: var(--text);
}

.survey-empty {
  opacity: 0.38;
}

.phantom-navigation {
  width: 100%;
  margin-top: auto;
  padding-top: 24px;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 48px;
  font-size: 10pt;
  line-height: 1.15;
}

.phantom-navigation button {
  border: 0;
  padding: 4px 8px;
  color: inherit;
  background: transparent;
  font: inherit;
  cursor: pointer;
  opacity: 0.62;
}

.phantom-navigation button:hover,
.phantom-navigation button:focus-visible {
  opacity: 1;
}

#phantom-counter {
  min-width: 72px;
  text-align: center;
  opacity: 0.7;
}

@media (max-width: 1280px) {
  .phantom-index-page {
    padding-right: 120px;
    padding-left: 120px;
  }
}

@media (max-width: 900px) {
  .phantom-index-page {
    padding-right: 70px;
    padding-left: 70px;
  }

  .phantom-survey {
    width: min(100%, 520px);
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .phantom-index-page {
    padding: 110px 24px 120px;
  }

  .phantom-index-title {
    top: 16px;
  }

  .novel-language-en {
    margin-top: 72px;
  }

  .phantom-modal-inner {
    width: calc(100% - 36px);
    padding-top: 16px;
  }

  .phantom-modal-close {
    top: 16px;
    right: 16px;
  }
}