:root { color-scheme: light; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; color: #182233; background: #f5f7fa; line-height: 1.65; }
* { box-sizing: border-box; }
body { margin: 0; }
a { color: inherit; }
:focus-visible { outline: 3px solid #2563eb; outline-offset: 3px; }
.skip-link { position: fixed; top: -100px; left: 16px; z-index: 10; padding: 10px 16px; background: #fff; }
.skip-link:focus { top: 12px; }
main { max-width: 1320px; margin: auto; padding: 18px 28px 72px; }
.page-head { display: flex; align-items: end; justify-content: space-between; gap: 32px; margin: 26px 0 24px; }
.eyebrow { margin: 0 0 5px; color: #2563eb; font-size: 13px; font-weight: 750; letter-spacing: .08em; }
h1 { margin: 0; font-size: clamp(27px, 4vw, 42px); line-height: 1.2; letter-spacing: -.035em; }
.head-note { max-width: 520px; margin: 0; color: #536174; font-size: 15px; }
.workspace { display: grid; grid-template-columns: 250px minmax(0, 1fr); gap: 24px; align-items: start; }
.role-panel { position: sticky; top: 16px; padding: 14px; background: #12233f; border-radius: 14px; color: #fff; box-shadow: 0 12px 32px rgba(15, 34, 62, .13); }
.role-panel > p { margin: 4px 8px 12px; color: #a9c4ef; font-size: 13px; font-weight: 700; }
.role-nav { display: grid; gap: 5px; }
.role-nav a { display: flex; justify-content: space-between; align-items: center; gap: 10px; min-height: 52px; padding: 9px 10px; border-radius: 9px; text-decoration: none; color: #dce8fa; }
.role-nav a:hover, .role-nav a[aria-current="true"] { background: #fff; color: #152744; }
.role-nav span { font-size: 14px; font-weight: 700; line-height: 1.35; }
.role-nav small { flex: 0 0 auto; color: #87a6d5; font-size: 11px; }
.content-panel { min-width: 0; }
.role-head { padding: 22px 24px; border: 1px solid #dfe5ed; border-radius: 14px 14px 0 0; background: #fff; }
.role-head h2 { margin: 0 0 6px; font-size: 24px; letter-spacing: -.02em; }
.role-head p { margin: 0; color: #5c6877; }
.group-tabs { display: flex; gap: 0; overflow-x: auto; padding: 0 12px; border: 1px solid #dfe5ed; border-top: 0; background: #fff; }
.group-tabs a { display: inline-flex; align-items: center; gap: 8px; min-height: 54px; padding: 12px; border-bottom: 3px solid transparent; color: #5b6674; font-size: 14px; font-weight: 700; text-decoration: none; white-space: nowrap; }
.group-tabs a[aria-current="page"] { border-bottom-color: #2563eb; color: #174da6; }
.group-tabs b { min-width: 22px; padding: 1px 6px; border-radius: 12px; background: #eef3fb; color: #456386; font-size: 12px; text-align: center; }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 20px; margin: 28px 0 14px; }
.section-head h2 { margin: 0 0 4px; font-size: 21px; }
.section-head p { margin: 0; color: #5e6875; font-size: 14px; }
.section-head > strong { flex: 0 0 auto; color: #385b8d; font-size: 13px; }
.case-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.case-card, .reference-card { display: flex; flex-direction: column; min-height: 270px; padding: 20px; border: 1px solid #dce2ea; border-radius: 12px; background: #fff; box-shadow: 0 5px 16px rgba(29, 44, 67, .045); }
.card-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; color: #697483; font-size: 12px; font-weight: 750; letter-spacing: .04em; }
mark { padding: 3px 8px; border-radius: 999px; background: #eaf1ff; color: #255796; font-size: 12px; letter-spacing: 0; }
.case-card h3, .reference-card h3 { margin: 14px 0; font-size: 19px; line-height: 1.45; letter-spacing: -.015em; }
dl { display: grid; gap: 12px; margin: 0; }
dl div { display: grid; grid-template-columns: 82px 1fr; gap: 8px; }
dt { color: #2d5a3f; font-size: 13px; font-weight: 750; }
dl div:last-child dt { color: #9a4b32; }
dd { margin: 0; color: #4e5967; font-size: 14px; }
.card-actions { display: flex; gap: 16px; margin-top: auto; padding-top: 18px; }
.card-actions a, .reference-card a { color: #174ea6; font-size: 14px; font-weight: 700; text-underline-offset: 3px; }
.reference-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.reference-card { min-height: 220px; border-top: 4px solid #d59b22; }
.reference-card > p:first-child { margin: 0; color: #9a6814; font-size: 12px; font-weight: 800; letter-spacing: .1em; }
.reference-card > p:not(:first-child) { color: #586474; }
.reference-card a { margin-top: auto; }
.boundary-note { margin-top: 22px; padding: 16px 18px; border-left: 3px solid #d59b22; background: #fff9eb; color: #625437; font-size: 14px; }
@media (max-width: 880px) { .workspace { grid-template-columns: 1fr; } .role-panel { position: static; } .role-nav { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 640px) { main { padding: 12px 16px 48px; } .page-head { display: block; } .head-note { margin-top: 12px; } .role-nav, .case-grid, .reference-grid { grid-template-columns: 1fr; } .role-panel { border-radius: 11px; } .role-nav a { min-height: 46px; } .section-head { align-items: start; } .case-card { min-height: 0; } dl div { grid-template-columns: 1fr; gap: 2px; } }
@media print { .dashboard-nav, .role-panel, .group-tabs, .skip-link, .card-actions { display: none; } main { max-width: none; padding: 0; } .workspace { display: block; } }

/* Claude·Codex 답안 비교 */
.compare-grid { display: grid; gap: 18px; }
.compare-notice { margin: 0; padding: 13px 16px; border: 1px solid #e4d7b4; border-left: 4px solid #b98900; border-radius: 10px; background: #fdf9ef; color: #5c4a1c; font-size: 13.5px; }
.compare-task { border: 1px solid #dce2ea; border-radius: 14px; background: #fff; box-shadow: 0 5px 16px rgba(29, 44, 67, .045); overflow: hidden; }
.compare-task-head { display: flex; align-items: end; justify-content: space-between; gap: 18px; padding: 20px 22px 17px; border-bottom: 1px solid #e6ebf2; background: #f8fafc; }
.compare-company { margin: 0 0 2px; color: #12233f; font-size: clamp(22px, 2.1vw, 27px); font-weight: 800; line-height: 1.2; letter-spacing: -.03em; }
.compare-task-head h3 { margin: 0; color: #4a5666; font-size: 14.5px; font-weight: 700; line-height: 1.4; letter-spacing: -.005em; }
.compare-source { margin: 0; flex: 0 0 auto; color: #7a8493; font-size: 12px; text-align: right; }
.compare-pair { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0; }
.compare-answer { display: flex; flex-direction: column; gap: 10px; padding: 18px 22px; min-width: 0; }
.compare-answer + .compare-answer { border-left: 1px solid #e6ebf2; }
.compare-answer.is-empty { align-items: center; justify-content: center; background: #fafbfc; }
.compare-none { margin: 0; padding: 10px 18px; border: 1px dashed #c7cfda; border-radius: 999px; color: #78828f; font-size: 13.5px; font-weight: 700; }
.compare-head { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.compare-head strong { padding: 3px 11px; border-radius: 999px; font-size: 13px; letter-spacing: .01em; }
.compare-answer[data-tool="claude"] .compare-head strong { background: #ece5fb; color: #4b2f95; }
.compare-answer[data-tool="codex"] .compare-head strong { background: #e2f0e8; color: #1f5b3c; }
.compare-head span { color: #4e5a69; font-size: 13px; font-weight: 700; }
.compare-indoc { margin: 0; padding: 8px 11px; border-radius: 8px; background: #eef3fb; color: #35538a; font-size: 12.5px; }
.compare-note { margin: 0; color: #4d5765; font-size: 13.5px; }
.compare-meta { display: grid; gap: 4px; margin: 0; }
.compare-meta div { grid-template-columns: 64px 1fr; gap: 8px; }
.compare-meta dt { color: #5b6674; font-size: 12.5px; }

.compare-meta dd { color: #3c4654; font-size: 12.5px; }
.compare-viewer { border: 1px solid #dce2ea; border-radius: 10px; background: #f3f5f8; overflow: hidden; }
.compare-viewer object { display: block; width: 100%; height: clamp(420px, 62vh, 820px); border: 0; }
.compare-viewer p { margin: 0; padding: 22px; color: #5b6674; font-size: 13.5px; text-align: center; }
.compare-actions { display: flex; flex-wrap: wrap; gap: 7px; }
.compare-actions a { padding: 7px 12px; border: 1px solid #c9d4e4; border-radius: 8px; background: #fff; color: #1f4c92; font-size: 13px; font-weight: 700; text-decoration: none; }
.compare-actions a:hover { background: #eef3fb; }
.compare-nomd { padding: 7px 12px; color: #8a929d; font-size: 13px; }
.compare-earlier { border-top: 1px dashed #dfe5ed; padding-top: 10px; }
.compare-earlier summary { color: #5b6674; font-size: 12.5px; font-weight: 700; cursor: pointer; }
.compare-earlier ul { display: grid; gap: 6px; margin: 10px 0 0; padding: 0; list-style: none; }
.compare-earlier li { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; font-size: 12.5px; color: #55606e; }
.compare-earlier li span { flex: 1 1 auto; min-width: 160px; }
.compare-earlier li a { padding: 3px 9px; border: 1px solid #d5dde8; border-radius: 6px; color: #1f4c92; font-weight: 700; text-decoration: none; }
@media (max-width: 1080px) {
  .compare-pair { grid-template-columns: 1fr; }
  .compare-answer + .compare-answer { border-left: 0; border-top: 1px solid #e6ebf2; }
  .compare-task-head { flex-direction: column; align-items: start; }
  .compare-source { text-align: left; }
}

/* 비교 탭 — 자료 묶음 구획 */
.compare-group { display: grid; gap: 14px; }
.compare-group + .compare-group { margin-top: 10px; }
.compare-group-head { padding: 4px 2px 0; }
.compare-group-head h3 { display: flex; align-items: center; gap: 9px; margin: 0 0 3px; font-size: 16px; letter-spacing: -.015em; }
.compare-group-head h3 b { min-width: 22px; padding: 1px 7px; border-radius: 12px; background: #12233f; color: #fff; font-size: 12px; text-align: center; }
.compare-group-head p { margin: 0; color: #6b7685; font-size: 13px; }

/* 참고자료 생성 탭 */
.ref-set { border: 1px solid #dce2ea; border-radius: 14px; background: #fff; box-shadow: 0 5px 16px rgba(29, 44, 67, .045); overflow: hidden; }
.ref-head { padding: 20px 22px 16px; border-bottom: 1px solid #e6ebf2; background: #f8fafc; }
.ref-tool { display: inline-block; margin: 0 0 7px; padding: 3px 11px; border-radius: 999px; font-size: 12.5px; font-weight: 750; letter-spacing: .02em; }
.ref-tool[data-tool="claude"] { background: #ece5fb; color: #4b2f95; }
.ref-tool[data-tool="codex"] { background: #e2f0e8; color: #1f5b3c; }
.ref-tool[data-tool="antlgo"] { background: #fdeee0; color: #8a4a12; }
.ref-head h3 { margin: 0 0 3px; font-size: clamp(20px, 1.9vw, 24px); font-weight: 800; letter-spacing: -.028em; line-height: 1.2; }
.ref-subject { margin: 0; color: #6b7685; font-size: 13px; }
.ref-body { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 0; }
.ref-body:not(:has(.ref-viewer)) { grid-template-columns: 1fr; }
.ref-text { display: grid; gap: 14px; align-content: start; padding: 18px 22px; min-width: 0; }
.ref-viewer { margin: 18px 22px 18px 0; }
.ref-meta { display: grid; gap: 10px; margin: 0; }
.ref-meta div { grid-template-columns: 78px 1fr; gap: 10px; }
.ref-meta dt { color: #2d5a3f; font-size: 12.5px; font-weight: 750; }
.ref-meta dd { margin: 0; color: #4d5765; font-size: 13.5px; }
.ref-files { display: grid; gap: 7px; margin: 0; padding: 0; list-style: none; }
.ref-files li { display: grid; grid-template-columns: 52px minmax(0, 1fr) auto; gap: 11px; align-items: center; padding: 9px 11px; border: 1px solid #e3e8ef; border-radius: 9px; background: #fbfcfd; }
.ref-kind { padding: 3px 0; border-radius: 6px; background: #12233f; color: #fff; font-size: 11px; font-weight: 750; text-align: center; letter-spacing: .03em; }
.ref-file { display: grid; min-width: 0; }
.ref-file b { font-size: 13.5px; }
.ref-file small { color: #6b7685; font-size: 12px; }
.ref-links { display: flex; gap: 6px; }
.ref-links a { padding: 5px 10px; border: 1px solid #c9d4e4; border-radius: 7px; background: #fff; color: #1f4c92; font-size: 12.5px; font-weight: 700; text-decoration: none; white-space: nowrap; }
.ref-links a:hover { background: #eef3fb; }
@media (max-width: 1080px) {
  .ref-body { grid-template-columns: 1fr; }
  .ref-viewer { margin: 0 22px 18px; }
  .ref-files li { grid-template-columns: 52px minmax(0, 1fr); }
  .ref-links { grid-column: 1 / -1; }
}