/* ============================================================
 *  대학수학능력시험 사회탐구 영역(삼국지) 문제지 조판
 * ============================================================ */

:root {
  --paper: #ffffff;
  --ink: #111111;
  --ink-soft: #3a3a3a;
  --rule: #111111;
  --desk: #6f7378;
  --desk-2: #585c61;
  --accent: #14508c;
  --correct: #0b6b3a;
  --wrong: #b3261e;
  --serif: "Batang", "바탕", "BatangChe", "Nanum Myeongjo", "Noto Serif KR", serif;
  --sans: "Malgun Gothic", "맑은 고딕", "Noto Sans KR", sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: linear-gradient(160deg, var(--desk), var(--desk-2));
  color: var(--ink);
  font-family: var(--serif);
  -webkit-font-smoothing: antialiased;
}

.hidden { display: none !important; }

/* ---------------------- 공통 종이 ---------------------- */
.sheet {
  background: var(--paper);
  width: 210mm;
  max-width: 100%;
  margin: 0 auto 24px;
  padding: 18mm 16mm 14mm;
  box-shadow: 0 10px 30px rgba(0, 0, 0, .35);
  position: relative;
}

/* ---------------------- 표지 ---------------------- */
#cover-wrap {
  min-height: 100vh;
  padding: 32px 16px 64px;
}

.cover-head {
  text-align: center;
  letter-spacing: .02em;
}
.cover-year {
  font-size: 20px;
  margin: 0 0 2px;
  font-weight: 700;
}
.cover-title {
  font-size: 30px;
  font-weight: 700;
  margin: 0 0 18px;
  letter-spacing: .16em;
}

.cover-box {
  border: 3px double var(--rule);
  padding: 26px 20px;
  text-align: center;
  margin: 0 0 22px;
}
.cover-period {
  font-size: 19px;
  margin: 0 0 10px;
  letter-spacing: .1em;
}
.cover-subject {
  font-size: 40px;
  font-weight: 700;
  letter-spacing: .12em;
  margin: 0 0 8px;
}
.cover-scope {
  font-size: 17px;
  margin: 0;
  color: var(--ink-soft);
}
.cover-meta {
  display: flex;
  justify-content: center;
  gap: 26px;
  margin-top: 16px;
  font-size: 15px;
  border-top: 1px solid #999;
  padding-top: 12px;
}

.namebar {
  display: flex;
  gap: 14px;
  align-items: flex-end;
  border: 1px solid var(--rule);
  padding: 14px 16px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.namebar label { font-size: 16px; white-space: nowrap; }
.namebar input {
  font-family: var(--serif);
  font-size: 17px;
  border: none;
  border-bottom: 1px solid var(--rule);
  background: transparent;
  padding: 4px 6px;
  min-width: 150px;
  outline: none;
}
.namebar .code {
  margin-left: auto;
  font-size: 15px;
  letter-spacing: .05em;
}

.notice {
  border: 1px solid var(--rule);
  padding: 16px 18px 14px;
  margin-bottom: 22px;
}
.notice h3 {
  margin: 0 0 10px;
  font-size: 17px;
  letter-spacing: .1em;
}
.notice ol {
  margin: 0;
  padding-left: 20px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--ink-soft);
}
.notice ol strong { color: var(--ink); }

.opt-row {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  align-items: center;
  border: 1px dashed #999;
  padding: 12px 16px;
  margin-bottom: 22px;
  font-size: 14.5px;
  font-family: var(--sans);
}
.opt-row label { display: flex; align-items: center; gap: 6px; cursor: pointer; }

.btn {
  font-family: var(--serif);
  font-size: 18px;
  letter-spacing: .1em;
  padding: 13px 40px;
  border: 2px solid var(--rule);
  background: #fff;
  cursor: pointer;
  transition: background .15s, color .15s;
}
.btn:hover { background: var(--ink); color: #fff; }
.btn.small { font-size: 14px; padding: 7px 16px; border-width: 1px; letter-spacing: .04em; }
.btn.primary { background: var(--ink); color: #fff; }
.btn.primary:hover { background: #000; }

.cover-actions { text-align: center; }
.cover-foot {
  margin-top: 26px;
  padding-top: 12px;
  border-top: 1px solid #bbb;
  font-size: 12.5px;
  color: #666;
  line-height: 1.7;
  font-family: var(--sans);
}

/* ---------------------- 시험 상단바 ---------------------- */
#topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(20, 20, 20, .96);
  color: #fff;
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 9px 18px;
  font-family: var(--sans);
  font-size: 14px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, .4);
}
#topbar .subject { font-family: var(--serif); font-size: 16px; letter-spacing: .08em; }
#timer {
  font-family: "Consolas", monospace;
  font-size: 24px;
  letter-spacing: .05em;
  padding: 2px 12px;
  border: 1px solid #666;
  border-radius: 3px;
}
#timer.warn { color: #ffd166; border-color: #ffd166; }
#timer.danger { color: #ff6b6b; border-color: #ff6b6b; animation: blink 1s steps(2, start) infinite; }
@keyframes blink { 50% { opacity: .45; } }
#topbar .spacer { margin-left: auto; }
#progress { font-size: 13px; color: #cfcfcf; }
#topbar button {
  font-family: var(--sans);
  font-size: 13px;
  padding: 7px 16px;
  border: 1px solid #888;
  background: transparent;
  color: #fff;
  cursor: pointer;
}
#topbar button:hover { background: #fff; color: #111; }
#topbar button.submit { background: #b3261e; border-color: #b3261e; }
#topbar button.submit:hover { background: #fff; color: #b3261e; }

/* ---------------------- 시험 본문 배치 ---------------------- */
#exam-body {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  padding: 20px 16px 80px;
  justify-content: center;
}
#pages { flex: 0 1 auto; min-width: 0; }

/* ---------------------- 문제지 쪽 ---------------------- */
.page { padding-bottom: 12mm; }

.page-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  border-bottom: 2px solid var(--rule);
  padding-bottom: 5px;
  margin-bottom: 10px;
  font-size: 15px;
  letter-spacing: .08em;
}
.page-head .ph-left { font-weight: 700; }
.page-head .ph-right { font-size: 13px; color: #555; }

.page-foot {
  margin-top: 12px;
  border-top: 1px solid #999;
  padding-top: 6px;
  text-align: center;
  font-size: 13px;
  color: #444;
}

.cols {
  column-count: 2;
  column-gap: 9mm;
  column-rule: 1px solid #cfcfcf;
}
.q {
  break-inside: avoid;
  page-break-inside: avoid;
  margin: 0 0 9mm;
}

.q-head {
  display: flex;
  gap: 6px;
  align-items: baseline;
  font-size: 15.5px;
  line-height: 1.55;
  margin-bottom: 7px;
}
.q-no {
  font-weight: 700;
  font-size: 16.5px;
  flex: 0 0 auto;
}
.q-stem { flex: 1 1 auto; }
.q-stem u { text-underline-offset: 3px; }
.q-pt { font-size: 13.5px; white-space: nowrap; }

.passage {
  border: 1px solid var(--rule);
  padding: 9px 11px;
  margin: 0 0 8px;
  font-size: 14.5px;
  line-height: 1.8;
  text-align: justify;
}
.passage p { margin: 0 0 6px; }
.passage p:last-child { margin-bottom: 0; }
.passage .plabel { font-weight: 700; margin-right: 4px; }

.bogi {
  border: 1px solid var(--rule);
  margin: 0 0 8px;
  font-size: 14.5px;
  line-height: 1.85;
}
.bogi-title {
  text-align: center;
  border-bottom: 1px solid var(--rule);
  padding: 3px 0;
  font-size: 13.5px;
  letter-spacing: .5em;
  text-indent: .5em;
}
.bogi ul { list-style: none; margin: 0; padding: 8px 12px; }

.choices { list-style: none; margin: 0; padding: 0; }
.choices li {
  display: flex;
  gap: 6px;
  align-items: flex-start;
  font-size: 14.8px;
  line-height: 1.65;
  padding: 3px 5px;
  cursor: pointer;
  border-radius: 2px;
  transition: background .12s;
}
.choices li:hover { background: #f1f4f8; }
.choices li.sel { background: #e3ecf7; }
.choices .cno { flex: 0 0 auto; font-size: 15px; }
.choices li.sel .cno { font-weight: 700; }

/* 채점 후 표시 */
.choices li.is-answer { background: #e6f4ea; }
.choices li.is-answer .cno { color: var(--correct); font-weight: 700; }
.choices li.is-wrongpick { background: #fdecea; }
.choices li.is-wrongpick .cno { color: var(--wrong); font-weight: 700; }

/* ---------------------- OMR 답안지 ---------------------- */
#omr {
  flex: 0 0 auto;
  width: 232px;
  position: sticky;
  top: 62px;
  background: #fdf6e3;
  border: 2px solid #333;
  padding: 12px 12px 14px;
  box-shadow: 0 8px 22px rgba(0, 0, 0, .3);
  font-family: var(--sans);
}
#omr h4 {
  margin: 0 0 4px;
  font-family: var(--serif);
  font-size: 15px;
  letter-spacing: .18em;
  text-align: center;
}
#omr .omr-sub {
  text-align: center;
  font-size: 11px;
  color: #666;
  margin-bottom: 8px;
  border-bottom: 1px solid #bba;
  padding-bottom: 6px;
}
.omr-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 8px; }
.omr-row {
  display: flex;
  align-items: center;
  gap: 3px;
  padding: 1px 0;
}
.omr-row .n {
  width: 17px;
  text-align: right;
  font-size: 11px;
  color: #444;
  font-variant-numeric: tabular-nums;
}
.bub {
  width: 15px;
  height: 15px;
  border: 1px solid #7a7a6a;
  border-radius: 50%;
  font-size: 8.5px;
  line-height: 13px;
  text-align: center;
  color: #9a9a8a;
  cursor: pointer;
  background: #fffdf5;
  user-select: none;
}
.bub:hover { border-color: #333; }
.bub.on { background: #222; color: #222; border-color: #111; }
.omr-row.done .n { color: #111; font-weight: 700; }
.omr-legend { margin-top: 8px; font-size: 10.5px; color: #666; text-align: center; line-height: 1.6; }

#omr-toggle {
  display: none;
  position: fixed;
  right: 14px;
  bottom: 14px;
  z-index: 60;
  font-family: var(--sans);
  font-size: 13px;
  padding: 12px 18px;
  border: none;
  border-radius: 24px;
  background: #111;
  color: #fff;
  box-shadow: 0 6px 18px rgba(0, 0, 0, .4);
  cursor: pointer;
}

/* ---------------------- 성적표 ---------------------- */
#result-wrap { padding: 30px 16px 70px; }

.report-head {
  text-align: center;
  border-bottom: 3px double var(--rule);
  padding-bottom: 12px;
  margin-bottom: 18px;
}
.report-head .ry { font-size: 15px; margin: 0 0 4px; }
.report-head h2 {
  margin: 0;
  font-size: 27px;
  letter-spacing: .22em;
  font-weight: 700;
}

.id-table, .score-table, .cut-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14.5px;
  margin-bottom: 18px;
}
.id-table th, .id-table td,
.score-table th, .score-table td,
.cut-table th, .cut-table td {
  border: 1px solid #444;
  padding: 8px 10px;
  text-align: center;
}
.id-table th, .score-table th, .cut-table th {
  background: #efefef;
  font-weight: 700;
  letter-spacing: .05em;
}
.score-table td.big {
  font-size: 26px;
  font-weight: 700;
  font-family: var(--sans);
  padding: 12px 8px;
}
.score-table td.grade { color: var(--accent); font-size: 32px; }
.cut-table td.here { background: #fff3cd; font-weight: 700; }

.summary-line {
  font-size: 15px;
  line-height: 1.9;
  margin: 0 0 18px;
  padding: 12px 14px;
  border-left: 4px solid var(--ink);
  background: #f7f7f7;
}

.omr-review { display: flex; flex-wrap: wrap; gap: 5px; margin-bottom: 20px; }
.omr-review .cell {
  width: 40px;
  border: 1px solid #666;
  text-align: center;
  font-family: var(--sans);
  font-size: 11px;
  padding: 3px 0 4px;
  cursor: pointer;
}
.omr-review .cell .mk { display: block; font-size: 15px; line-height: 1.2; }
.omr-review .cell.ok { background: #e6f4ea; color: var(--correct); border-color: var(--correct); }
.omr-review .cell.no { background: #fdecea; color: var(--wrong); border-color: var(--wrong); }
.omr-review .cell.blank { background: #f0f0f0; color: #777; }

.sect-title {
  font-size: 19px;
  letter-spacing: .12em;
  border-bottom: 2px solid var(--rule);
  padding-bottom: 6px;
  margin: 26px 0 14px;
}

.sol {
  border: 1px solid #bbb;
  border-left: 5px solid #bbb;
  padding: 12px 14px;
  margin-bottom: 14px;
}
.sol.ok { border-left-color: var(--correct); }
.sol.no { border-left-color: var(--wrong); }
.sol-head {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: baseline;
  font-size: 14px;
  margin-bottom: 8px;
  font-family: var(--sans);
}
.sol-head .sno { font-family: var(--serif); font-size: 17px; font-weight: 700; }
.sol-head .tag {
  font-size: 11.5px;
  padding: 2px 8px;
  border-radius: 10px;
  background: #eee;
  color: #444;
}
.sol-head .tag.ok { background: #e6f4ea; color: var(--correct); }
.sol-head .tag.no { background: #fdecea; color: var(--wrong); }
.sol-head .src { margin-left: auto; font-size: 12px; color: #666; font-family: var(--serif); }

.sol .q-stem-r { font-size: 15px; margin-bottom: 8px; line-height: 1.6; }
.sol .passage { font-size: 13.8px; }
.sol .why-list { list-style: none; margin: 8px 0 0; padding: 0; font-size: 14px; }
.sol .why-list li {
  padding: 5px 8px;
  line-height: 1.65;
  border-bottom: 1px dotted #ddd;
  display: flex;
  gap: 7px;
}
.sol .why-list li:last-child { border-bottom: none; }
.sol .why-list .mark { flex: 0 0 auto; font-weight: 700; }
.sol .why-list li.a { background: #f2faf5; }
.sol .why-list li.a .mark { color: var(--correct); }
.sol .why-list li.p { background: #fdf3f2; }
.sol .why-list li.p .mark { color: var(--wrong); }
.sol .explain {
  margin-top: 10px;
  padding: 10px 12px;
  background: #f6f8fa;
  font-size: 14px;
  line-height: 1.8;
  text-align: justify;
}
.sol .explain b { letter-spacing: .05em; }
.sol .yeonui {
  margin-top: 8px;
  padding: 9px 12px;
  background: #fff7e6;
  border: 1px dashed #d9a441;
  font-size: 13.5px;
  line-height: 1.75;
}
.sol .yeonui b { color: #a2701a; }

.result-actions { text-align: center; margin-top: 30px; display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ---------------------- 반응형 ---------------------- */
@media (max-width: 1180px) {
  #omr {
    position: fixed;
    right: 10px;
    bottom: 66px;
    max-height: 72vh;
    overflow: auto;
    z-index: 55;
  }
  #omr.collapsed { display: none; }
  #omr-toggle { display: block; }
}

@media (max-width: 820px) {
  .sheet { padding: 12mm 8mm; }
  .cols { column-count: 1; column-rule: none; }
  .cover-subject { font-size: 30px; }
  .cover-title { font-size: 22px; }
  #exam-body { padding: 14px 8px 90px; }
  .id-table, .score-table, .cut-table { font-size: 12.5px; }
  .score-table td.big { font-size: 20px; }
  .score-table td.grade { font-size: 26px; }
}