:root {
  --navy: #232683;          /* HCLT 로고 색 */
  --navy-dark: #1a1d66;
  --select-bg: #D9DEF7;     /* 선택한 칸 배경 */
  --hover-bg: #F0F2FC;
  --ink: #1b1d2e;
  --muted: #5d6178;
  --line: #cfd3e6;
  --line-strong: #232683;
  --bg: #f4f5fa;
  --card: #ffffff;
  --ok: #1d7a4a;
  --warn: #b25b00;
  --danger: #c0392b;
  --radius: 14px;
  --shadow: 0 6px 24px rgba(35, 38, 131, 0.08);
}

* { box-sizing: border-box; }

html { font-size: 18px; -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: "Pretendard Variable", Pretendard, -apple-system, "Malgun Gothic", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.5;
  word-break: keep-all;
  -webkit-font-smoothing: antialiased;
}

[hidden] { display: none !important; }

button { font: inherit; }

/* ───────── 버튼 ───────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 2px solid transparent;
  border-radius: 12px;
  padding: 12px 22px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s, transform 0.05s;
}
.btn:active:not(:disabled) { transform: translateY(1px); }
.btn:focus-visible, .opt:focus-visible, .resume-box:focus-visible { outline: 3px solid #8e96e8; outline-offset: 2px; }
.btn-primary { background: var(--navy); color: #fff; }
.btn-primary:hover:not(:disabled) { background: var(--navy-dark); }
.btn-secondary { background: #fff; color: var(--navy); border-color: var(--line); }
.btn-secondary:hover:not(:disabled) { border-color: var(--navy); }
.btn-danger { background: var(--danger); color: #fff; }
.btn:disabled { background: #d7d9e3; color: #8a8ea3; cursor: not-allowed; border-color: transparent; }
.btn-xl { font-size: 1.15rem; padding: 16px 30px; border-radius: 14px; }
.btn-xxl { font-size: 1.4rem; padding: 22px 56px; border-radius: 16px; }
.btn-block { width: 100%; }
.btn-row { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ───────── 상단 상태 표시 ───────── */
.status-bar {
  position: fixed;
  top: 12px;
  right: 16px;
  z-index: 50;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
  pointer-events: none;
}
.save-pill, .wake-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--line);
  color: var(--muted);
  box-shadow: var(--shadow);
  white-space: nowrap;
}
.save-pill:empty { display: none; }
.save-pill.saved { color: var(--ok); border-color: #b9dfc9; }
.save-pill.saving { color: var(--navy); }
.save-pill.offline { color: var(--warn); border-color: #f0cfa6; background: #fff8ef; }
.wake-pill { color: var(--navy); }
.timer-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 14px;
  border-radius: 999px;
  background: var(--select-bg);
  color: var(--navy);
  font-size: 1.05rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

/* ───────── 로그인 / 확인 ───────── */
.screen { min-height: 100vh; }

.center-card {
  max-width: 520px;
  margin: 0 auto;
  padding: 56px 24px;
  text-align: center;
}
.login-logo { width: 200px; height: auto; mix-blend-mode: multiply; }
.login-logo.small { width: 130px; }
.login-title { font-size: 2.2rem; color: var(--navy); margin: 8px 0 4px; }
.login-sub { color: var(--muted); margin: 0 0 28px; font-size: 1.05rem; }

.login-form {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px;
  text-align: left;
}
.field { display: block; margin-bottom: 18px; }
.field span { display: block; font-weight: 700; margin-bottom: 8px; font-size: 1.05rem; }
.field input {
  width: 100%;
  font: inherit;
  font-size: 1.3rem;
  padding: 14px 16px;
  border: 2px solid var(--line);
  border-radius: 12px;
  background: #fff;
  color: var(--ink);
}
.field input:focus { outline: none; border-color: var(--navy); box-shadow: 0 0 0 4px var(--select-bg); }
#in-code { letter-spacing: 0.5em; font-weight: 700; }
/* 시작 화면: 입력 영역은 가운데, 회사 로고·저작권은 화면 맨 아래 (스크롤 없이 보이게) */
#screen-login { display: flex; flex-direction: column; min-height: 100vh; min-height: 100dvh; }
#screen-login .center-card {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  width: 100%;
  padding: 12px 24px;
}
#screen-login .login-logo { width: 120px; align-self: center; }
#screen-login .login-title { margin: 6px 0 2px; font-size: 2rem; }
#screen-login .login-sub { margin-bottom: 16px; }
#screen-login .login-form { padding: 22px 24px; }
#screen-login .field { margin-bottom: 14px; }
#screen-login .field span { margin-bottom: 6px; }
#screen-login .field input { padding: 12px 16px; }
#screen-login .form-error { min-height: 0; margin: 0 0 10px; }
#screen-login .form-error:empty { margin: 0; }
.copyright {
  display: flex;
  flex-direction: column; /* 회사 로고를 저작권 문구 바로 위에 */
  align-items: flex-start;
  gap: 4px;
  padding: 0 20px 12px;
}
.copyright-logo { display: block; height: 22px; width: auto; }
.copyright p {
  margin: 0;
  font-size: 0.7rem;
  color: #a9adbf;
}

.form-error { color: var(--danger); font-weight: 600; min-height: 1.5em; margin: 0 0 12px; font-size: 0.95rem; }

.resume-box {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  margin-bottom: 18px;
  padding: 18px 22px;
  border: 2px solid var(--navy);
  border-radius: var(--radius);
  background: var(--select-bg);
  color: var(--navy);
  cursor: pointer;
  text-align: left;
}
.resume-label { font-size: 0.9rem; font-weight: 600; }
.resume-box strong { font-size: 1.2rem; flex: 1; }
.resume-arrow { font-size: 1.4rem; font-weight: 700; }

.confirm-title { font-size: 1.7rem; margin: 18px 0 24px; }
.confirm-title span { color: var(--navy); }
.confirm-list {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 8px 24px;
  margin: 0 0 28px;
  text-align: left;
}
.confirm-list div { display: flex; padding: 14px 0; border-bottom: 1px solid #eceef6; font-size: 1.1rem; }
.confirm-list div:last-child { border-bottom: 0; }
.confirm-list dt { width: 110px; color: var(--muted); }
.confirm-list dd { margin: 0; font-weight: 700; }

/* 날짜 선택 */
.ds-list { display: grid; gap: 12px; margin-bottom: 24px; }
.ds-loading { color: var(--muted); }
.ds-item {
  display: grid;
  gap: 4px;
  width: 100%;
  padding: 20px 24px;
  text-align: left;
  background: var(--card);
  border: 2px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  cursor: pointer;
  color: var(--ink);
  transition: border-color 0.12s, background 0.12s;
}
.ds-item:hover { border-color: var(--navy); background: var(--hover-bg); }
.ds-item.today { border-color: var(--navy); }
.ds-date { font-size: 1.35rem; font-weight: 800; color: var(--navy); display: flex; align-items: center; gap: 8px; }
.ds-today { font-size: 0.8rem; background: var(--navy); color: #fff; padding: 2px 10px; border-radius: 999px; }
.ds-meta { font-size: 1.05rem; }
.ds-status { font-size: 0.9rem; font-weight: 700; color: var(--muted); }
.ds-status.active { color: var(--navy); }
.ds-status.done { color: var(--ok); }

/* ───────── 소개 ───────── */
.intro { max-width: 980px; margin: 0 auto; padding: 48px 24px 64px; }
.intro-head { display: flex; gap: 28px; align-items: center; margin-bottom: 32px; }
.intro-logo { width: 130px; mix-blend-mode: multiply; flex-shrink: 0; }
.intro-hello { margin: 0; font-size: 1.1rem; color: var(--muted); }
.intro-hello strong { color: var(--navy); }
.intro-head h1 { font-size: 2.1rem; margin: 4px 0 6px; color: var(--navy); }
.intro-lead { margin: 0; font-size: 1.1rem; }

.steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }
.step {
  display: grid;
  grid-template-columns: 56px 1fr 300px;
  gap: 20px;
  align-items: center;
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px 26px;
  border: 2px solid transparent;
}
.step-important { border-color: var(--navy); }
.step-no {
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--navy);
  color: #fff;
  font-size: 1.4rem;
  font-weight: 800;
  display: grid;
  place-items: center;
}
.step-text h2 { margin: 0 0 6px; font-size: 1.25rem; }
.step-text p { margin: 0; color: #3b3f55; }
.step-text mark { background: var(--select-bg); color: var(--navy); padding: 0 4px; border-radius: 4px; }
.step-demo { display: flex; justify-content: center; }

.demo-row { display: grid; grid-template-columns: auto repeat(3, 1fr); gap: 6px; align-items: center; font-size: 0.72rem; width: 100%; }
.demo-name { font-weight: 700; padding-right: 4px; }
.demo-opt { border: 1px solid var(--line); border-radius: 8px; padding: 8px 4px; text-align: center; background: #fff; color: var(--muted); }
.demo-opt.selected { background: var(--select-bg); color: var(--navy); border: 2px solid var(--navy); font-weight: 800; }
.demo-total { display: flex; align-items: baseline; gap: 8px; border: 2px solid var(--navy); border-radius: 12px; padding: 8px 20px; }
.demo-total span { font-weight: 800; color: var(--navy); }
.demo-total b { font-size: 1.8rem; color: var(--navy); }
.demo-total small { color: var(--muted); }
.demo-btn { background: var(--navy); color: #fff; font-weight: 700; border-radius: 12px; padding: 12px 20px; }
.demo-save { padding: 14px 40px; font-size: 1.1rem; box-shadow: 0 0 0 5px var(--select-bg); }

.reassure {
  margin-top: 22px;
  padding: 8px 26px;
  color: var(--navy);
}
.reassure strong { font-size: 1.1rem; }
.reassure p { margin: 4px 0 0; color: var(--navy); }
.intro-actions { text-align: center; margin-top: 36px; }

/* ───────── 심사 화면 ───────── */
.judge { max-width: 1240px; margin: 0 auto; padding: 24px 28px 150px; }

.judge-head {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 24px;
  align-items: center;
}
.judge-logo { width: 116px; mix-blend-mode: multiply; }

.progress { display: flex; flex-wrap: wrap; gap: 6px; justify-content: center; align-items: center; }
.progress-text { font-weight: 800; color: var(--navy); margin-right: 8px; font-size: 1.05rem; }
.dot {
  width: 30px; height: 30px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 0.75rem;
  font-weight: 700;
  background: #fff;
  border: 2px solid var(--line);
  color: var(--muted);
}
.dot.done { background: var(--navy); border-color: var(--navy); color: #fff; }
.dot.current { border-color: var(--navy); color: var(--navy); background: var(--select-bg); transform: scale(1.12); }

.meta-table { border-collapse: collapse; min-width: 340px; font-size: 0.92rem; }
.meta-table th, .meta-table td {
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
  padding: 5px 16px;
  text-align: center;
  font-weight: 500;
  background: transparent;
}
.meta-table th { border-right: 1px solid var(--line-strong); color: var(--muted); width: 45%; }

.team-head { display: flex; gap: 20px; align-items: flex-start; margin: 22px 0 18px; }
.order-badge {
  flex-shrink: 0;
  background: var(--navy);
  color: #fff;
  font-weight: 800;
  font-size: 1.15rem;
  padding: 10px 18px;
  border-radius: 10px;
  margin-top: 4px;
}
.team-title { margin: 0 0 8px; color: var(--navy); font-size: 1.85rem; line-height: 1.3; font-weight: 800; }
.team-authors { margin: 0; color: #3b3f55; font-size: 0.95rem; }

/* 평가표: 칸 자체가 버튼 */
.rubric {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  border: 1px solid var(--line);
}
.rubric-row {
  display: grid;
  grid-template-columns: 64px 150px repeat(3, 1fr) 84px;
  align-items: stretch;
  border-bottom: 1px solid var(--line);
}
.rubric-row:last-child { border-bottom: 0; }
.rubric-row > * { border-right: 1px solid var(--line); }
.rubric-row > *:last-child { border-right: 0; }
.rubric-header { background: #f7f8fc; font-weight: 700; color: var(--muted); font-size: 0.92rem; }
.rubric-header span { padding: 12px 8px; text-align: center; }
.r-no, .r-name, .r-score { display: grid; place-items: center; text-align: center; padding: 10px 6px; }
.r-no { color: var(--muted); font-weight: 700; }
.r-name { font-weight: 800; font-size: 1.05rem; }
.r-score { font-weight: 800; font-size: 1.15rem; color: #b3b6c7; }
.r-score.filled { color: var(--navy); }

.opt {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 90px;
  padding: 12px;
  margin: 0;
  border: 0;
  border-right: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  cursor: pointer;
  text-align: center;
  transition: background 0.12s, box-shadow 0.12s;
}
.opt:hover { background: var(--hover-bg); }
.opt-desc { font-size: 1.02rem; line-height: 1.35; }
.opt-pts {
  font-size: 0.82rem;
  font-weight: 700;
  padding: 3px 12px;
  border-radius: 999px;
  background: #eef0f7;
  color: var(--muted);
}
.opt-check {
  position: absolute;
  top: 8px;
  right: 10px;
  width: 26px; height: 26px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 0.85rem;
  font-weight: 900;
  background: var(--navy);
  color: #fff;
  opacity: 0;
  transform: scale(0.6);
  transition: opacity 0.12s, transform 0.12s;
}
.opt.selected {
  background: var(--select-bg);
  color: var(--navy);
  box-shadow: inset 0 0 0 3px var(--navy);
}
.opt.selected .opt-desc { font-weight: 800; }
.opt.selected .opt-pts { background: var(--navy); color: #fff; }
.opt.selected .opt-check { opacity: 1; transform: scale(1); }

/* 하단 고정 바: 총점 + 다음 버튼 */
.judge-foot {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 24px;
  padding: 16px max(28px, calc((100vw - 1240px) / 2 + 28px));
  background: rgba(255, 255, 255, 0.96);
  border-top: 1px solid var(--line);
  box-shadow: 0 -6px 24px rgba(35, 38, 131, 0.06);
}
.foot-left { margin-right: auto; display: grid; gap: 6px; }
.foot-hint { margin: 0; color: var(--muted); font-size: 0.95rem; }
.judge-foot .status-bar { position: static; justify-content: flex-start; pointer-events: auto; }
.judge-foot .save-pill, .judge-foot .wake-pill { box-shadow: none; padding: 3px 10px; font-size: 0.75rem; }
.foot-hint b { color: var(--navy); }
.foot-hint .ok { color: var(--ok); font-weight: 700; }
.total-box {
  display: flex;
  align-items: baseline;
  gap: 10px;
  border: 2px solid var(--navy);
  border-radius: 12px;
  padding: 6px 22px;
  background: #fff;
}
.total-label { font-weight: 800; color: var(--navy); font-size: 1.15rem; }
.total-value { font-weight: 900; color: var(--navy); font-size: 2.1rem; min-width: 1.4em; text-align: center; }
.total-max { color: var(--muted); }

/* ───────── 심사표 확인 / 완료 ───────── */
.report-screen { max-width: 900px; margin: 0 auto; padding: 60px 20px 80px; }
.report-guide { text-align: center; margin-bottom: 24px; }
.report-guide h1 { color: var(--navy); font-size: 1.9rem; margin: 0 0 8px; }
.report-guide p { margin: 0; font-size: 1.05rem; }
.paper-wrap { overflow-x: auto; padding: 4px; }

.sign-panel {
  margin-top: 28px;
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 26px;
  text-align: center;
  border: 2px solid var(--navy);
}
.sign-panel h2 { margin: 0 0 4px; color: var(--navy); }
.sign-panel p { margin: 0 0 16px; color: var(--muted); }
.sign-pad-wrap { position: relative; margin-bottom: 18px; }
.sign-pad {
  display: block;
  width: 100%;
  height: 240px;
  border: 2px dashed #9aa0cc;
  border-radius: 12px;
  background:
    linear-gradient(transparent calc(100% - 60px), #c9cde6 calc(100% - 60px), #c9cde6 calc(100% - 58px), transparent calc(100% - 58px)),
    #fff;
  touch-action: none;
  cursor: crosshair;
}
.sign-guide {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: #aeb2cc;
  font-size: 1.4rem;
  font-weight: 700;
  pointer-events: none;
}

.done-box { text-align: center; margin-bottom: 28px; }
.done-box h1 { color: var(--navy); font-size: 2rem; margin: 12px 0 6px; }
.done-box p { margin: 0 0 6px; font-size: 1.1rem; }
.sync-note { font-weight: 700; margin: 10px 0 22px !important; color: var(--muted); }
.sync-note.ok { color: var(--navy); }
.sync-note.warn { color: var(--warn); }

/* ───────── 모달 / 토스트 ───────── */
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: rgba(20, 22, 60, 0.45);
  display: grid;
  place-items: center;
  padding: 20px;
}
.modal {
  width: min(520px, 100%);
  max-height: 90vh;
  overflow: auto;
  background: #fff;
  border-radius: 18px;
  padding: 30px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.25);
}
.modal h2 { margin: 0 0 16px; font-size: 1.4rem; color: var(--navy); }
.modal-body p { margin: 0 0 8px; }
.modal-actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 24px; }
.modal-actions .btn { font-size: 1.05rem; padding: 14px 24px; }
.modal-warn { background: #fff5f5; color: #8a2a20; padding: 12px 14px; border-radius: 10px; margin-top: 14px !important; }
.confirm-scores { width: 100%; border-collapse: collapse; font-size: 1.05rem; }
.confirm-scores th, .confirm-scores td { padding: 9px 4px; border-bottom: 1px solid #eceef6; }
.confirm-scores th { text-align: left; font-weight: 600; color: var(--muted); }
.confirm-scores td { text-align: right; font-weight: 800; color: var(--navy); }
.confirm-scores .sum th, .confirm-scores .sum td { border-bottom: 0; font-size: 1.2rem; color: var(--navy); font-weight: 900; }

.toast-box { position: fixed; bottom: 110px; left: 50%; transform: translateX(-50%); z-index: 200; display: grid; gap: 8px; width: min(560px, calc(100% - 32px)); }
.toast { background: var(--ink); color: #fff; padding: 14px 18px; border-radius: 12px; font-weight: 600; box-shadow: var(--shadow); }
.toast-error { background: var(--danger); }
.toast-ok { background: var(--ok); }

/* ───────── 좁은 화면 (태블릿 세로 / 휴대폰) ───────── */
@media (max-width: 900px) {
  html { font-size: 17px; }
  .step { grid-template-columns: 48px 1fr; }
  .step-demo { grid-column: 2; justify-content: flex-start; }
  .judge { padding: 64px 16px 190px; }
  .judge-head { grid-template-columns: auto 1fr; }
  .meta-table { grid-column: 1 / -1; width: 100%; min-width: 0; }
  .progress { justify-content: flex-end; }
  .team-head { flex-direction: column; gap: 10px; }
  .team-title { font-size: 1.5rem; }
  .rubric-header { display: none; }
  .rubric-row { grid-template-columns: repeat(3, 1fr); }
  .rubric-row > * { border-right: 0; }
  .r-no { display: none; }
  .r-name { grid-column: 1 / 3; justify-items: start; padding: 12px 14px; background: #f7f8fc; }
  .r-score { background: #f7f8fc; order: 1; }
  .opt { order: 2; min-height: 96px; border-right: 1px solid var(--line); }
  .opt:nth-last-child(2) { border-right: 0; }
  .judge-foot { flex-wrap: wrap; gap: 8px 10px; padding: 10px 14px; }
  .foot-left { width: 100%; margin-right: 0; display: grid; gap: 6px; }
  .foot-hint { font-size: 0.8rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
  .judge-foot .status-bar { flex-wrap: nowrap; align-items: center; }
  .judge-foot .wake-pill { display: none; }
  .judge-foot .timer-pill { font-size: 0.95rem; padding: 2px 12px; }
  .total-box { padding: 2px 14px; }
  .total-value { font-size: 1.6rem; }
  .judge-foot .btn { flex: 1; padding: 12px 14px; font-size: 1.05rem; white-space: nowrap; }
}
@media (max-width: 560px) {
  /* 상단 저장 표시가 제목을 가리지 않도록: 화면과 함께 스크롤되게 하고 그만큼 위를 띄움 */
  body > .status-bar { position: absolute; top: 10px; right: 10px; left: 10px; justify-content: center; }
  .intro, .report-screen { padding-top: 64px; }
  .report-guide h1, .done-box h1 { font-size: 1.5rem; }
  .report-guide p { font-size: 0.95rem; }
  .sign-panel { padding: 20px 14px; }
  /* 팝업 버튼 두 개를 좌우로 같은 폭으로 */
  .modal { padding: 24px 18px; }
  .modal-actions .btn { flex: 1 1 0; padding: 14px 8px; font-size: 1rem; }
  .intro-head { flex-direction: column; align-items: flex-start; }
  .opt-desc { font-size: 0.9rem; }
  .btn-xxl { width: 100%; padding: 20px; }
}