/* SSAMPIECE 제품 UI (Codex 디자인 시스템 v1 기반) — 학습지 인쇄 CSS 와 분리, .sn-app 범위 */
@import url("https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/pretendard.min.css");
* { box-sizing: border-box; }
[hidden] { display: none !important; }   /* 🔧 display 지정 요소도 hidden 이면 확실히 숨김 */
html, body { margin: 0; }
body.sn-app { background: var(--sn-bg); min-height: 100vh; word-break: keep-all; overflow-wrap: anywhere; }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--sn-focus); outline-offset: 2px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* 버튼·입력 */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; height: 40px; padding: 0 16px; border-radius: var(--sn-radius-control);
  border: 1px solid var(--sn-control-line); background: var(--sn-surface); color: var(--sn-ink); font: 600 14px/20px var(--sn-font); cursor: pointer;
  text-decoration: none; transition: background var(--sn-duration-fast); white-space: nowrap; }
.btn:hover { background: var(--sn-surface-muted); }
.btn[disabled] { opacity: .5; cursor: default; }
.btn-primary { background: var(--sn-primary); border-color: var(--sn-primary); color: #fff; }
.btn-primary:hover { background: var(--sn-primary-hover); }
.btn-ghost { border-color: transparent; background: transparent; }
.btn-danger { color: var(--sn-danger); border-color: var(--sn-danger); }
.field { display: grid; gap: 6px; }
.field label { font: 600 14px/20px var(--sn-font); }
.search { max-width: 280px; }
.field input, .search { height: 44px; border: 1px solid var(--sn-control-line); border-radius: var(--sn-radius-control); padding: 0 12px;
  font: 16px var(--sn-font); background: var(--sn-surface); color: var(--sn-ink); width: 100%; }
.help { color: var(--sn-text-secondary); font-size: 13px; }
.error { color: var(--sn-danger); font-size: 14px; min-height: 20px; }
.badge { display: inline-flex; align-items: center; gap: 4px; padding: 2px 10px; border-radius: 999px; font: 600 12px/18px var(--sn-font); white-space: nowrap; }
.badge-warn { background: var(--sn-warning-soft); color: var(--sn-warning); }
.badge-ok { background: var(--sn-primary-soft); color: var(--sn-primary); }
.badge-danger { background: var(--sn-danger-soft); color: var(--sn-danger); }
.badge-info { background: var(--sn-info-soft); color: var(--sn-info); }

/* 앱 틀: 왼쪽 내비 + 본문 */
.shell { display: grid; grid-template-columns: var(--sn-nav-width) 1fr; min-height: 100vh; }
.nav { border-right: 1px solid var(--sn-line); padding: 24px 20px; display: flex; flex-direction: column; gap: 6px; background: #faf9f6; }
.brand { display: flex; align-items: center; gap: 10px; margin-bottom: 36px; text-decoration: none; }
.brand-logo { display: block; height: 44px; width: auto; max-width: 100%; }
.login .brand-logo { height: 52px; }
.brand-mark { width: 32px; height: 32px; border-radius: 8px; background: var(--sn-primary); color: #fff; display: grid; place-items: center; font-weight: 900; }
.nav-label { font-size: 11px; letter-spacing: .12em; color: var(--sn-text-secondary); margin: 0 0 8px 14px; }
.nav a.item { display: flex; align-items: center; gap: 10px; padding: 12px 14px; border-radius: var(--sn-radius-card); text-decoration: none; color: var(--sn-text-secondary); font-weight: 600; }
.nav a.item[aria-current="page"] { background: var(--sn-primary-soft); color: var(--sn-primary); }
.nav .who { margin-top: auto; font-size: 13px; color: var(--sn-text-secondary); display: grid; gap: 8px; }
.topbar { height: 48px; border-bottom: 1px solid var(--sn-line); display: flex; align-items: center; justify-content: space-between; padding: 0 36px;
  font-size: 12px; color: var(--sn-text-secondary); }
.main { padding: 48px; max-width: 1200px; width: 100%; }
.eyebrow { font: 800 12px var(--sn-font); letter-spacing: .12em; color: var(--sn-primary); text-transform: uppercase; }
h1.display { font-size: 36px; line-height: 46px; letter-spacing: -.025em; margin: 8px 0; }
.lead { color: var(--sn-text-secondary); margin: 0; }
.head-row { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; flex-wrap: wrap; }

/* 이어서 준비하기 */
.hero { margin: 36px 0 48px; background: var(--sn-primary-soft); border: 1px solid #cfe7e1; border-radius: var(--sn-radius-panel); padding: 36px;
  display: flex; justify-content: space-between; gap: 24px; }
.hero h2 { font-size: 28px; line-height: 38px; margin: 10px 0 6px; }
.hero .meta { color: var(--sn-text-secondary); font-size: 14px; }
.hero .row { display: flex; gap: 12px; align-items: center; margin: 14px 0 22px; font-size: 14px; color: var(--sn-text-secondary); }
.paper { width: 210px; height: 250px; background: #fff; box-shadow: var(--sn-shadow-paper); transform: rotate(4deg); border-radius: 2px; padding: 22px 18px;
  flex: 0 0 auto; margin: -8px 0 -60px; }
.paper b { display: block; font-size: 13px; border-bottom: 2px solid var(--sn-ink); padding-bottom: 8px; margin-bottom: 12px; }
.paper i { display: block; height: 1px; background: var(--sn-line); margin: 9px 0; }

/* 목록 */
.list-head { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }
.list-head h2 { font-size: 20px; margin: 0; } .list-head h2 small { color: var(--sn-text-secondary); font-size: 14px; }
.tabs { display: flex; gap: 6px; margin: 20px 0 8px; flex-wrap: wrap; }
.tabs button { border: 1px solid transparent; background: none; border-radius: var(--sn-radius-control); padding: 8px 14px; font: 600 14px var(--sn-font);
  color: var(--sn-text-secondary); cursor: pointer; }
.tabs button[aria-pressed="true"] { background: var(--sn-surface); border-color: var(--sn-line); color: var(--sn-ink); }
.ws-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--sn-line); }
.ws-item { display: grid; grid-template-columns: 40px 1fr auto auto auto; gap: 20px; align-items: center; padding: 18px 0; border-bottom: 1px solid var(--sn-line); }
.ws-thumb { width: 40px; height: 52px; background: #fff; border: 1px solid var(--sn-line); border-radius: 2px; padding: 8px 6px; }
.ws-thumb::before { content: ""; display: block; height: 3px; width: 70%; background: var(--sn-primary); margin-bottom: 6px; }
.ws-item a.title { font-weight: 700; text-decoration: none; } .ws-item a.title:hover { text-decoration: underline; }
.ws-item .sub { color: var(--sn-text-secondary); font-size: 13px; }
.ws-item time { color: var(--sn-text-secondary); font-size: 13px; }
.empty { text-align: center; padding: 64px 24px; border: 1px dashed var(--sn-control-line); border-radius: var(--sn-radius-panel); background: var(--sn-surface); }
.empty h3 { margin: 0 0 6px; } .empty p { color: var(--sn-text-secondary); margin: 0 0 18px; }

/* 로그인 */
.login { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.card { background: var(--sn-surface); border: 1px solid var(--sn-line); border-radius: var(--sn-radius-panel); padding: 36px; width: min(440px, 100%); display: grid; gap: 18px; }
.card h1 { margin: 0; font-size: 28px; line-height: 38px; }
.dev-note { background: var(--sn-warning-soft); color: var(--sn-warning); border-radius: var(--sn-radius-control); padding: 10px 12px; font-size: 13px; }

/* 편집실 */
.editor { display: grid; grid-template-rows: 64px 48px 1fr; height: 100vh; }
.docbar { display: flex; align-items: center; gap: 16px; padding: 0 24px; border-bottom: 1px solid var(--sn-line); background: var(--sn-surface); }
.docbar h1 { font-size: 18px; margin: 0; flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.docbar .save { font-size: 13px; color: var(--sn-text-secondary); }
.toolbar { display: flex; align-items: center; gap: 12px; padding: 0 24px; border-bottom: 1px solid var(--sn-line); background: #faf9f6; }
.seg { display: inline-flex; border: 1px solid var(--sn-control-line); border-radius: var(--sn-radius-control); overflow: hidden; }
.seg button { border: 0; background: var(--sn-surface); padding: 6px 14px; font: 600 14px var(--sn-font); cursor: pointer; color: var(--sn-text-secondary); }
.seg button[aria-pressed="true"] { background: var(--sn-primary); color: #fff; }
.work { display: grid; grid-template-columns: 1fr var(--sn-inspector-width); min-height: 0; }
.canvas { position: relative; min-height: 0; background: #e9edf2; }
.canvas iframe { width: 100%; height: 100%; border: 0; display: block; }
.canvas .loading { position: absolute; inset: 0; display: grid; place-items: center; color: var(--sn-text-secondary); }
.inspector { border-left: 1px solid var(--sn-line); background: var(--sn-surface); overflow: auto; }
.insp-tabs { display: flex; border-bottom: 1px solid var(--sn-line); position: sticky; top: 0; background: var(--sn-surface); }
.insp-tabs button { flex: 1; border: 0; background: none; padding: 12px 8px; font: 600 14px var(--sn-font); color: var(--sn-text-secondary); cursor: pointer;
  border-bottom: 2px solid transparent; }
.insp-tabs button[aria-selected="true"] { color: var(--sn-primary); border-bottom-color: var(--sn-primary); }
.insp-body { padding: 16px; display: grid; gap: 12px; font-size: 14px; }
.issue { border-radius: var(--sn-radius-control); padding: 10px 12px; }
.issue.block { background: var(--sn-danger-soft); color: var(--sn-danger); } .issue.warn { background: var(--sn-warning-soft); color: var(--sn-warning); }
.issue small { display: block; opacity: .8; margin-top: 2px; }
.corr { border: 1px solid var(--sn-line); border-radius: var(--sn-radius-card); padding: 12px; display: grid; gap: 8px; }
.corr .diff { font-size: 14px; line-height: 1.7; }
.corr del { background: var(--sn-danger-soft); color: var(--sn-danger); text-decoration: line-through; padding: 0 2px; }
.corr ins { background: var(--sn-primary-soft); color: var(--sn-primary); text-decoration: none; padding: 0 2px; font-weight: 700; }
.corr .why { color: var(--sn-text-secondary); font-size: 13px; }
.corr .acts { display: flex; gap: 8px; }
.toast { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); background: var(--sn-ink); color: #fff; padding: 10px 18px; border-radius: 999px;
  font-size: 14px; z-index: var(--sn-z-toast); display: none; }
.toast.show { display: block; } .toast.err { background: var(--sn-danger); }

@media (max-width: 1023px) {
  .shell { grid-template-columns: 1fr; } .nav { flex-direction: row; flex-wrap: wrap; align-items: center; padding: 12px 16px; }
  .brand { margin: 0 16px 0 0; } .nav-label, .nav .who { display: none; }
  .main { padding: 24px 16px; } .paper { display: none; }
  .work { grid-template-columns: 1fr; grid-template-rows: 1fr 40vh; } .inspector { border-left: 0; border-top: 1px solid var(--sn-line); }
}
@media (max-width: 640px) {
  .ws-item { grid-template-columns: 1fr auto; } .ws-thumb, .ws-item time, .ws-item .go { display: none; }
  h1.display { font-size: 28px; line-height: 38px; } .hero { padding: 24px; }
  .docbar .save { display: none; }
}
.grow { flex: 1; }

/* 로그인·관리자 (T-04b) */
.btn-google { height: 48px; font-size: 15px; }
details summary { cursor: pointer; color: var(--sn-text-secondary); font-size: 14px; margin: 4px 0 12px; }
details[open] { display: grid; gap: 14px; }
.acts { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.admin-block { margin-top: 40px; } .admin-block h2 { font-size: 20px; margin: 0 0 12px; } .admin-block h2 small { color: var(--sn-text-secondary); font-size: 14px; }
.admin-row { grid-template-columns: 1fr auto auto; }
.table-wrap { overflow-x: auto; }
.admin-table { width: 100%; border-collapse: collapse; background: var(--sn-surface); border: 1px solid var(--sn-line); border-radius: var(--sn-radius-card); }
.admin-table th, .admin-table td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--sn-line); vertical-align: middle; font-size: 14px; }
.admin-table th { font-size: 13px; color: var(--sn-text-secondary); background: var(--sn-surface-muted); }
.admin-table .num { font-variant-numeric: tabular-nums; font-weight: 700; }
.admin-table .sub { color: var(--sn-text-secondary); font-size: 12px; }
.ledger { background: var(--sn-surface); border: 1px solid var(--sn-line); border-radius: var(--sn-radius-card); padding: 12px 12px 12px 36px; margin: 0; }
.ledger li { padding: 4px 0; font-size: 14px; }
dialog { border: 0; border-radius: var(--sn-radius-panel); box-shadow: var(--sn-shadow-overlay); padding: 0; width: min(420px, calc(100vw - 32px)); }
dialog::backdrop { background: rgb(32 43 40 / 40%); }
.grant { padding: 24px; display: grid; gap: 14px; } .grant h2 { margin: 0; font-size: 20px; }
.credit-chip { display: inline-flex; gap: 6px; align-items: center; font-size: 13px; }
.doc-symbol { height: 28px; width: auto; }

/* 교사 조사·둘러보기 (T-05b) */
.welcome { width: min(560px, 100%); }
.chips { border: 0; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.chips legend { font: 600 14px/20px var(--sn-font); margin-bottom: 8px; padding: 0; }
.chips legend small, .field label small { color: var(--sn-text-secondary); font-weight: 400; }
.chip { border: 1px solid var(--sn-control-line); background: var(--sn-surface); border-radius: 999px; padding: 6px 14px; font: 600 14px var(--sn-font); cursor: pointer; color: var(--sn-ink); }
.chip[aria-pressed="true"] { background: var(--sn-primary); border-color: var(--sn-primary); color: #fff; }
.toggle { font-size: 14px; color: var(--sn-text-secondary); display: inline-flex; gap: 6px; align-items: center; }
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 20px; margin-top: 16px; }
.ex-card { background: var(--sn-surface); border: 1px solid var(--sn-line); border-radius: var(--sn-radius-card); padding: 18px; display: grid; gap: 8px; align-content: start; }
.ex-card h3 { margin: 0; font-size: 16px; } .ex-card p { margin: 0; }
.ex-meta { font-size: 12px; color: var(--sn-primary); font-weight: 700; }
.ex-paper { height: 120px; background: #fff; border: 1px solid var(--sn-line); border-radius: 4px; padding: 14px; box-shadow: var(--sn-shadow-paper); }
.ex-paper b { display: block; font-size: 12px; border-bottom: 2px solid var(--sn-ink); padding-bottom: 6px; }
.preview-dialog { width: min(1180px, calc(100vw - 32px)); height: calc(100vh - 48px); max-width: none; }
.preview-dialog[open] { display: grid; grid-template-rows: auto 1fr; }
.pv-bar { display: flex; gap: 12px; align-items: center; padding: 12px 16px; border-bottom: 1px solid var(--sn-line); flex-wrap: wrap; }
.pv-bar h2 { font-size: 16px; margin: 0; flex: 1; min-width: 0; }
.preview-dialog iframe { width: 100%; height: 100%; border: 0; background: #e9edf2; }
.ws-del { color: var(--sn-text-secondary); }

/* IA v2 (T-30~35): 만들기 상자·내 템플릿·설정 */
.row { display: flex; gap: 8px; align-items: center; } .row.wrap { flex-wrap: wrap; }
.makebox { margin-top: 40px; background: var(--sn-surface); border: 1px solid var(--sn-line); border-radius: var(--sn-radius-card); padding: 20px; display: grid; gap: 12px;
  box-shadow: var(--sn-shadow-paper); }
.mk-head { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; } .mk-head h2 { margin: 0; font-size: 18px; flex: 1; }
.mk-tpl { font: 600 14px var(--sn-font); display: inline-flex; gap: 8px; align-items: center; }
.mk-tpl select, .settings select { height: 40px; border: 1px solid var(--sn-control-line); border-radius: var(--sn-radius-control); padding: 0 10px; font: 500 14px var(--sn-font); background: #fff; max-width: 360px; }
.makebox textarea { width: 100%; border: 1px solid var(--sn-control-line); border-radius: var(--sn-radius-control); padding: 12px; font: 400 15px/1.6 var(--sn-font); resize: vertical; box-sizing: border-box; }
.mk-foot { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.settings .admin-block { margin-top: 28px; display: grid; gap: 14px; }
.settings .admin-block h2 { margin: 0; font-size: 18px; }
.col-group { display: grid; gap: 12px; margin-top: 12px; } .col-group h3 { margin: 0; font-size: 15px; }
/* 편집실 머리말·직접 고치기 */
.insp-body input[type=text], .insp-body input[type=number], .insp-body textarea { width: 100%; box-sizing: border-box; border: 1px solid var(--sn-control-line); border-radius: var(--sn-radius-control); padding: 8px 10px; font: 400 14px/1.5 var(--sn-font); }
.insp-body textarea { resize: vertical; min-height: 56px; }
.insp-body .chips .chip { font-size: 13px; padding: 4px 10px; }
.edit-block { border: 1px solid var(--sn-line); border-radius: var(--sn-radius-card); padding: 10px 12px; display: grid; gap: 8px; }
.edit-block .kind { font-size: 12px; color: var(--sn-primary); font-weight: 700; }
.edit-block .locked { font-size: 12px; color: var(--sn-text-secondary); }
.edit-block label { display: grid; gap: 4px; font: 600 12px var(--sn-font); color: var(--sn-text-secondary); }
.edit-block .num { display: flex; gap: 8px; } .edit-block .num label { flex: 1; }
.sticky-save { position: sticky; bottom: 0; background: var(--sn-surface); padding: 12px 0 4px; border-top: 1px solid var(--sn-line); display: flex; gap: 8px; align-items: center; }
/* 자료 올리기 (T-09·T-10) */
.upload { display: grid; gap: 10px; } .upload-block { margin: 24px 0 8px; display: grid; gap: 10px; } .upload-block h2 { margin: 0; font-size: 18px; }
.up-result { display: grid; gap: 10px; border: 1px dashed var(--sn-control-line); border-radius: var(--sn-radius-card); padding: 14px; }
.up-result:empty { display: none; }
.up-head { display: flex; gap: 10px; align-items: baseline; flex-wrap: wrap; }
.chip.static { cursor: default; background: var(--sn-primary-soft); border-color: transparent; color: var(--sn-primary); }
.recs { display: grid; gap: 8px; }
.rec { display: grid; grid-template-columns: auto 1fr auto auto; gap: 10px; align-items: center; border: 1px solid var(--sn-line); border-radius: var(--sn-radius-control); padding: 8px 12px; }
.rec small { color: var(--sn-text-secondary); }