/* 실기 코스 시뮬레이터 (practical.html 전용 — .pr 안에서만) */
.pr {
  --pr-navy: #0B1A2E; --pr-cyan: #5EE1E6; --pr-amber: #FFB547; --pr-sky: #2F8BFF;
  --pr-ground: #F2F5F9; --pr-line: #D6E0EB; --pr-ink: #142235; --pr-sub: #4A5B70;
  --pr-sans: var(--sans-base); --pr-mono: var(--sans-base);
  font-family: var(--pr-sans); font-variant-numeric: tabular-nums; color: var(--pr-ink); padding-top: 22px; padding-bottom: 64px;
}
.pr .sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.pr button { font-family: inherit; }
.pr-grid { display: grid; grid-template-columns: minmax(0, 1fr) 400px; gap: 20px; align-items: start; }
.pr-left { position: sticky; top: calc(var(--hd-h, 64px) + 12px); min-width: 0; }

/* ── 3D 화면 */
.pr-stage { position: relative; height: max(440px, calc(100vh - var(--hd-h, 64px) - 250px)); height: max(440px, calc(100dvh - var(--hd-h, 64px) - 250px));
  border-radius: 18px; overflow: hidden; background: linear-gradient(#2f6fd0, #e6eff7); border: 1px solid var(--pr-line); box-shadow: 0 14px 40px rgba(11,26,46,.14); }
.pr-stage canvas { display: block; width: 100%; height: 100%; touch-action: none; outline: none; }
.pr-load { position: absolute; inset: 0; display: grid; place-items: center; padding: 20px; text-align: center; color: #fff; font-weight: 600;
  background: rgba(11,26,46,.72); font-size: 15px; }
.pr-load[hidden] { display: none; }

.pr-hud { position: absolute; inset: 10px 10px auto 10px; display: flex; gap: 10px; align-items: flex-start; pointer-events: none; font-family: var(--pr-mono); }
.pr-ins { background: rgba(8,20,38,.62); color: #e7f2ff; border: 1px solid rgba(255,255,255,.16); border-radius: 14px; padding: 9px 13px; min-width: 168px;
  display: grid; gap: 2px; font-size: 12px; -webkit-backdrop-filter: blur(12px) saturate(1.3); backdrop-filter: blur(12px) saturate(1.3); box-shadow: 0 8px 24px rgba(6,16,34,.22); }
.pr-ins > div { display: flex; align-items: baseline; gap: 8px; }
.pr-ins span { color: #8fb3d6; width: 30px; font-family: var(--pr-sans); font-size: 11.5px; }
.pr-ins b { color: var(--pr-cyan); font-size: 19px; font-weight: 600; min-width: 54px; text-align: right; font-variant-numeric: tabular-nums; }
.pr-ins i { font-style: normal; color: #9cb4cc; font-size: 11px; font-family: var(--pr-sans); }
.pr-ins b.warn { color: #ff8a7a; }
.pr-chips { margin-top: 4px; gap: 6px !important; }
.pr-chips em { font-style: normal; font-size: 11px; font-weight: 600; padding: 2px 8px; border-radius: 999px; letter-spacing: .04em; }
.pr-mode { background: rgba(94,225,230,.16); color: var(--pr-cyan); border: 1px solid rgba(94,225,230,.5); }
.pr-mode.atti { background: rgba(255,181,71,.2); color: var(--pr-amber); border-color: rgba(255,181,71,.7); }
.pr-arm { background: rgba(255,255,255,.08); color: #b8c7d8; border: 1px solid rgba(255,255,255,.2); font-family: var(--pr-sans); }
.pr-arm.on { background: rgba(80,220,140,.18); color: #7ff0b0; border-color: rgba(80,220,140,.6); }
.pr-stepbar { flex: 1; min-width: 0; background: rgba(8,20,38,.62); color: #fff; border-radius: 14px; padding: 10px 15px; font-family: var(--pr-sans);
  font-size: 14px; font-weight: 600; line-height: 1.45; border: 1px solid rgba(255,255,255,.16); box-shadow: inset 3px 0 0 var(--pr-amber), 0 8px 24px rgba(6,16,34,.22);
  -webkit-backdrop-filter: blur(12px) saturate(1.3); backdrop-filter: blur(12px) saturate(1.3); }
.pr-stepbar small { display: block; color: var(--pr-cyan); font-weight: 500; font-size: 12px; font-family: var(--pr-mono); }

.pr-call { position: absolute; left: 50%; top: 42%; transform: translate(-50%, -50%) scale(.9); opacity: 0; pointer-events: none;
  background: rgba(11,26,46,.88); color: var(--pr-amber); border: 2px solid var(--pr-amber); border-radius: 14px; padding: 10px 22px;
  font-size: 20px; font-weight: 700; white-space: nowrap; transition: opacity .25s, transform .25s; }
.pr-call.show { opacity: 1; transform: translate(-50%, -50%) scale(1); }
.pr-call.end { color: var(--pr-cyan); border-color: var(--pr-cyan); }
.pr-call.shout { color: #fff; background: rgba(200,40,30,.92); border-color: #fff; font-size: 34px; }

.pr-watch { position: absolute; left: 50%; bottom: 14px; transform: translateX(-50%); background: rgba(8,20,38,.66); -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px); color: #fff; border-radius: 14px;
  padding: 6px 18px 8px; text-align: center; font-family: var(--pr-mono); border: 1px solid rgba(255,255,255,.18); pointer-events: none; min-width: 150px; }
.pr-watch[hidden] { display: none; }
.pr-watch small { display: block; font-family: var(--pr-sans); font-size: 12px; color: #a9bfd6; }
.pr-watch b { font-size: 34px; font-weight: 600; font-variant-numeric: tabular-nums; color: var(--pr-amber); }
.pr-watch i { font-style: normal; font-size: 13px; color: #a9bfd6; margin-left: 4px; }
.pr-watch.ok { border-color: #50dc8c; } .pr-watch.ok b { color: #7ff0b0; }
.pr-watch.over { border-color: #ff7a6a; } .pr-watch.over b { color: #ff9a8a; }

.pr-legbtn { position: absolute; left: 10px; bottom: 10px; min-height: 34px; padding: 0 12px; border-radius: 10px; border: 1px solid rgba(255,255,255,.35);
  background: rgba(8,20,38,.62); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); color: #fff; font-size: 13px; font-weight: 600; cursor: pointer; }
.pr-legbtn:focus-visible, .pr-b:focus-visible, .pr-seg button:focus-visible, .pr-tabs button:focus-visible, .pr-mlist button:focus-visible, .pr-steps button:focus-visible {
  outline: 3px solid var(--pr-amber); outline-offset: 2px; }
.pr-legend { position: absolute; left: 10px; bottom: 52px; max-width: min(340px, calc(100% - 20px)); background: rgba(8,20,38,.82); -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px); border: 1px solid rgba(255,255,255,.14); color: #e7f2ff;
  border-radius: 12px; padding: 10px 14px; font-size: 12.5px; line-height: 1.55; }
.pr-legend[hidden] { display: none; }
.pr-legend ul { margin: 6px 0 0; padding: 0; list-style: none; display: grid; gap: 3px; }
.pr-legend .sw { display: inline-block; width: 16px; height: 0; margin-right: 7px; vertical-align: middle; border-top: 3px solid; }
.sw-ring { width: 12px !important; height: 12px !important; border: 2px solid var(--pr-cyan) !important; border-radius: 50%; margin-left: 2px; }
.sw-red { border-top-style: dashed !important; color: #ff4d3d; } .sw-redl { color: #ff4d3d; } .sw-or { color: #ff6a2b; } .sw-cy { color: var(--pr-cyan); }

/* ── 조작줄 */
.pr-ctrl { margin-top: 10px; background: #fff; border: 1px solid var(--pr-line); border-radius: 14px; padding: 10px 12px; display: grid; gap: 8px; }
.pr-row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.pr-b { min-height: 40px; padding: 0 14px; border-radius: 10px; border: 1px solid var(--pr-line); background: var(--pr-ground); color: var(--pr-ink);
  font-size: 14px; font-weight: 600; cursor: pointer; }
.pr-b:hover { border-color: var(--pr-sky); }
.pr-b[aria-pressed="true"] { background: var(--pr-navy); border-color: var(--pr-navy); color: var(--pr-cyan); }
.pr-play { background: var(--pr-amber); border-color: var(--pr-amber); color: var(--pr-navy); min-width: 112px; }
.pr-play:hover { border-color: var(--pr-navy); }
.pr-seg { display: inline-flex; border: 1px solid var(--pr-line); border-radius: 10px; overflow: hidden; margin-left: auto; }
.pr-seg button { min-height: 40px; min-width: 46px; border: 0; background: var(--pr-ground); font-family: var(--pr-mono); font-weight: 600; font-size: 14px; cursor: pointer; color: var(--pr-ink); }
.pr-seg button + button { border-left: 1px solid var(--pr-line); }
.pr-seg button[aria-pressed="true"] { background: var(--pr-navy); color: var(--pr-cyan); }
.pr-prog { display: flex; align-items: center; gap: 10px; }
.pr-prog input { flex: 1; accent-color: var(--pr-sky); min-width: 0; }
.pr-prog output, .pr-ref output { font-family: var(--pr-mono); font-size: 13px; color: var(--pr-sub); white-space: nowrap; }
.pr-ref { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; font-weight: 600; margin-right: auto; }
.pr-ref input { width: 120px; accent-color: var(--pr-amber); }
.pr-views .pr-b { flex: 1 1 auto; }

/* ── 오른쪽 안내 */
.pr-panel { display: grid; gap: 12px; min-width: 0; }
.pr-tabs { display: grid; grid-template-columns: 1fr 1fr; background: var(--pr-navy); border-radius: 12px; padding: 4px; gap: 4px; }
.pr-tabs button { min-height: 42px; border: 0; border-radius: 9px; background: transparent; color: #b9cbe0; font-size: 15px; font-weight: 700; cursor: pointer; }
.pr-tabs button[aria-selected="true"] { background: var(--pr-cyan); color: var(--pr-navy); }
.pr-order { margin: 0; font-size: 12.5px; color: var(--pr-sub); line-height: 1.6; }
.pr-mlist { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; counter-reset: m; }
.pr-mlist button { width: 100%; display: flex; align-items: center; gap: 10px; min-height: 44px; padding: 6px 12px; border-radius: 10px;
  border: 1px solid var(--pr-line); background: #fff; color: var(--pr-ink); font-size: 14.5px; font-weight: 600; text-align: left; cursor: pointer; }
.pr-mlist button:hover { border-color: var(--pr-sky); }
.pr-mlist .no { flex: none; width: 26px; height: 26px; border-radius: 8px; display: grid; place-items: center; background: var(--pr-ground);
  font-family: var(--pr-mono); font-size: 13px; color: var(--pr-sub); }
.pr-mlist .nm { flex: 1; min-width: 0; }
.pr-mlist .lk { flex: none; color: #8796a8; display: inline-flex; align-items: center; gap: 4px; font-size: 12px; font-weight: 500; }
.pr-mlist .fr { flex: none; font-size: 11px; font-weight: 600; color: #17663a; background: #ddf3e6; border-radius: 999px; padding: 1px 8px; }
.pr-mlist button[aria-current="true"] { background: var(--pr-navy); border-color: var(--pr-navy); color: #fff; }
.pr-mlist button[aria-current="true"] .no { background: var(--pr-amber); color: var(--pr-navy); }
.pr-mlist button[aria-current="true"] .lk { color: #b9cbe0; }

.pr-lock { background: #fff8eb; border: 1px solid #f3d29b; border-radius: 12px; padding: 12px 14px; font-size: 14px; line-height: 1.65; color: #5c3a00; }
.pr-lock b { display: block; color: #3d2800; }
.pr-lock .acts { display: flex; gap: 8px; margin-top: 8px; flex-wrap: wrap; }
.pr-lock a { display: inline-flex; align-items: center; min-height: 38px; padding: 0 14px; border-radius: 10px; font-weight: 700; text-decoration: none;
  background: var(--pr-navy); color: #fff; font-size: 14px; }
.pr-lock a + a { background: var(--pr-amber); color: var(--pr-navy); }

.pr-card { background: #fff; border: 1px solid var(--pr-line); border-radius: 14px; padding: 14px 16px; font-size: 14px; line-height: 1.65; }
.pr-card h2 { font-size: 18px; font-weight: 700; margin: 0 0 4px; }
.pr-card h3 { font-size: 13px; font-weight: 700; color: var(--pr-sub); margin: 14px 0 6px; letter-spacing: .02em; }
.pr-card ul { margin: 0; padding-left: 18px; }
.pr-card li + li { margin-top: 3px; }
.pr-cue { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 6px; }
.pr-cue span { font-size: 12.5px; border-radius: 999px; padding: 2px 10px; background: var(--pr-ground); border: 1px solid var(--pr-line); }
.pr-cue span b { color: #b35c00; }
.pr-steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 3px; counter-reset: st; }
.pr-steps li { counter-increment: st; }
.pr-steps button { width: 100%; display: flex; gap: 8px; text-align: left; border: 1px solid transparent; background: none; padding: 5px 8px; border-radius: 8px;
  font-size: 14px; line-height: 1.5; color: var(--pr-ink); cursor: pointer; }
.pr-steps button::before { content: counter(st); flex: none; width: 20px; height: 20px; margin-top: 1px; border-radius: 6px; display: grid; place-items: center;
  background: var(--pr-ground); font-family: var(--pr-mono); font-size: 11.5px; color: var(--pr-sub); }
.pr-steps button:hover { background: var(--pr-ground); }
.pr-steps .pre button { color: var(--pr-sub); font-style: italic; }
.pr-steps .ev button::after { content: '평가 시작'; flex: none; margin-left: auto; align-self: center; font-size: 10.5px; font-style: normal; font-weight: 700;
  color: #b35c00; background: #fff1d6; border-radius: 999px; padding: 0 7px; }
.pr-steps .on button { background: #e9f9fa; border-color: var(--pr-cyan); font-weight: 600; }
.pr-steps .on button::before { background: var(--pr-navy); color: var(--pr-cyan); }
.pr-note { margin-top: 10px; background: var(--pr-ground); border-left: 3px solid var(--pr-sky); border-radius: 8px; padding: 8px 12px; color: var(--pr-sub); font-size: 13px; }
.pr-judge { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.pr-judge th, .pr-judge td { border-top: 1px solid var(--pr-line); padding: 6px 4px; text-align: left; vertical-align: top; }
.pr-judge th { width: 38%; color: var(--pr-sub); font-weight: 600; }

.pr-fold summary { cursor: pointer; font-weight: 700; font-size: 15px; list-style: none; display: flex; justify-content: space-between; align-items: center; min-height: 28px; }
.pr-fold summary::-webkit-details-marker { display: none; }
.pr-fold summary::after { content: '+'; font-family: var(--pr-mono); color: var(--pr-sub); font-size: 18px; }
.pr-fold[open] summary::after { content: '−'; }
.pr-fold dl { margin: 8px 0 0; }
.pr-fold dt { font-weight: 700; margin-top: 8px; }
.pr-fold dd { margin: 2px 0 0; color: var(--pr-sub); }
.pr-fail { margin: 8px 0 0; padding-left: 20px; }
.pr-oral { display: block; padding: 12px 16px; border-radius: 14px; background: var(--pr-navy); color: #dce9f8; text-decoration: none; font-size: 14px; line-height: 1.55; }
.pr-oral b { color: var(--pr-cyan); }
.pr-oral:hover { color: #fff; }
.pr-src { margin: 18px 0 0; font-size: 12.5px; color: var(--pr-sub); line-height: 1.7; }

/* ── 태블릿·좁은 PC: 위아래로 */
@media (max-width: 1023px) {
  .pr-grid { grid-template-columns: minmax(0, 1fr); }
  .pr-left { position: static; }
  .pr-stage { height: 60vh; min-height: 360px; }
}
/* ── 휴대폰 */
@media (max-width: 640px) {
  .pr { padding-top: 12px; }
  .pr-stage { height: 58vh; height: 58svh; min-height: 300px; border-radius: 12px; }
  .pr-hud { inset: 6px 6px auto 6px; gap: 6px; flex-direction: column; align-items: stretch; }
  .pr-ins { grid-template-columns: repeat(3, auto) 1fr; min-width: 0; padding: 6px 8px; gap: 0 8px; align-items: center; }
  .pr-ins > div { flex-direction: column; gap: 0; align-items: flex-start; }
  .pr-ins span { width: auto; font-size: 10.5px; }
  .pr-ins b { font-size: 16px; min-width: 0; text-align: left; }
  .pr-ins i { font-size: 10px; }
  .pr-chips { margin-top: 0; flex-direction: column !important; align-items: flex-end !important; justify-self: end; gap: 3px !important; }
  .pr-stepbar { font-size: 12.5px; padding: 6px 10px; }
  .pr-call { font-size: 16px; padding: 8px 14px; white-space: normal; text-align: center; width: max-content; max-width: 86%; }
  .pr-call.shout { font-size: 28px; }
  .pr-watch { bottom: 8px; padding: 4px 12px 6px; min-width: 120px; }
  .pr-watch b { font-size: 26px; }
  .pr-legbtn { bottom: 8px; left: 8px; min-height: 40px; }
  .pr-steps button { min-height: 40px; align-items: center; padding: 6px 8px; }
  .pr-seg { margin-left: 0; }
  .pr-b { padding: 0 11px; font-size: 13.5px; }
  .pr-views { display: grid; grid-template-columns: 1fr 1fr; }
  .pr-ref input { width: 96px; }
}
@media (prefers-reduced-motion: reduce) { .pr-call { transition: none; } }