/* 타임 터널 (/grammar/tense/tunnel.jsp, 2026-10-18). js/ps2-tense-tunnel.js 가 만드는 화면. 로비 · 한 판(캔버스 + 안내) · 결과 */
#main .gi .tt { min-width: 0; --tt-ink: #0f172a; --tt-mute: #64748b; --tt-line: #e2e8f0; --tt-accent: #2563eb; --tt-glow: #22d3ee; margin: 0 0 28px; }
#main .gi .tt .tt-view[hidden] { display: none; }

/* 로비 */
#main .gi .tt .tt-hero { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 22px; align-items: center; padding: 22px; border-radius: 22px; color: #fff;
    background: radial-gradient(120% 90% at 50% 100%, #1e3a8a 0%, #0b1120 60%, #07101f 100%); box-shadow: 0 30px 60px -36px rgba(2, 6, 23, .9); overflow: hidden; }
#main .gi .tt .tt-hero__art { position: relative; height: 230px; border-radius: 16px; overflow: hidden; perspective: 600px;
    background: radial-gradient(60% 40% at 50% 42%, rgba(34, 211, 238, .45), rgba(34, 211, 238, 0) 70%), linear-gradient(#07101f, #1e3a8a 70%, #312e81); }
#main .gi .tt .tt-hero__art::before { content: ""; position: absolute; inset: 0; background: repeating-linear-gradient(0deg, rgba(255,255,255,0) 0 22px, rgba(255,255,255,.06) 22px 23px); mask: linear-gradient(transparent 30%, #000); animation: tt-road 1.1s linear infinite; }
@keyframes tt-road { to { background-position: 0 23px; } }
#main .gi .tt .tt-gate { position: absolute; top: 40%; left: 50%; display: grid; place-items: center; width: 98px; height: 78px; border: 3px solid var(--tt-glow); border-radius: 14px 14px 6px 6px;
    background: rgba(34, 211, 238, .12); box-shadow: 0 0 22px rgba(34, 211, 238, .55), inset 0 0 18px rgba(34, 211, 238, .25); transform: translate(-50%, 0) scale(.3); animation: tt-come 2.6s ease-in infinite; }
#main .gi .tt .tt-gate i { font-style: normal; font-weight: 800; font-size: 13px; color: #fff; padding: 3px 7px; border-radius: 6px; background: rgba(8, 10, 24, .8); }
#main .gi .tt .tt-gate.g1 { --dx: -120px; border-color: #60a5fa; box-shadow: 0 0 22px rgba(96, 165, 250, .6); }
#main .gi .tt .tt-gate.g2 { --dx: 0px; animation-delay: -.9s; }
#main .gi .tt .tt-gate.g3 { --dx: 120px; border-color: #c084fc; box-shadow: 0 0 22px rgba(192, 132, 252, .6); animation-delay: -1.8s; }
@keyframes tt-come { 0% { transform: translate(-50%, 0) scale(.18); opacity: 0; } 20% { opacity: 1; } 100% { transform: translate(calc(-50% + var(--dx)), 120px) scale(1.15); opacity: 0; } }
#main .gi .tt .tt-car { position: absolute; left: 50%; bottom: 14px; width: 56px; height: 40px; transform: translateX(-50%); background: linear-gradient(90deg, #cbd5e1, #fff, #cbd5e1);
    clip-path: polygon(50% 0, 78% 36%, 100% 74%, 90% 100%, 10% 100%, 0 74%, 22% 36%); filter: drop-shadow(0 8px 10px rgba(34, 211, 238, .6)); animation: tt-car 2.6s ease-in-out infinite; }
@keyframes tt-car { 0%, 100% { transform: translateX(-70%) rotate(-6deg); } 50% { transform: translateX(-30%) rotate(6deg); } }
#main .gi .tt .tt-hero__txt h2 { margin: 0 0 8px; font-size: clamp(20px, 2.6vw, 26px); line-height: 1.35; letter-spacing: -0.02em; color: #fff; }
#main .gi .tt .tt-hero__txt p { margin: 0 0 12px; font-size: 15px; line-height: 1.7; color: rgba(255, 255, 255, .82); }
#main .gi .tt .tt-how { margin: 0; padding: 0; list-style: none; display: grid; gap: 6px; font-size: 13.5px; color: rgba(255, 255, 255, .85); }
#main .gi .tt .tt-how kbd, #main .gi .tt .tt-tip kbd { display: inline-block; min-width: 22px; padding: 1px 7px; border-radius: 6px; border: 1px solid rgba(255,255,255,.35); background: rgba(255,255,255,.12); font: 700 12px/1.6 inherit; color: #fff; text-align: center; }
#main .gi .tt .tt-levels { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 12px; margin: 16px 0 10px; }
#main .gi .tt .tt-level { display: grid; align-content: start; gap: 8px; padding: 16px; border: 1px solid var(--tt-line); border-radius: 16px; background: #fff; box-shadow: 0 10px 24px rgba(15, 23, 42, .06); }
#main .gi .tt .tt-level.is-locked { opacity: .62; }
#main .gi .tt .tt-level h3 { display: flex; justify-content: space-between; align-items: center; gap: 8px; margin: 0; font-size: 16px; }
#main .gi .tt .tt-level h3 i { font-style: normal; color: #f59e0b; letter-spacing: 1px; font-size: 14px; }
#main .gi .tt .tt-level p { margin: 0; font-size: 13.5px; line-height: 1.6; color: var(--tt-mute); }
#main .gi .tt .tt-level__meta { display: flex; gap: 8px; flex-wrap: wrap; font-size: 12.5px; color: var(--tt-mute); }
#main .gi .tt .tt-level__box { padding: 0 8px; border-radius: 999px; background: #fef3c7; color: #92400e; font-weight: 700; }
#main .gi .tt .tt-level .gi-btn { justify-self: start; }
#main .gi .tt .tt-foot { display: flex; flex-wrap: wrap; gap: 10px 14px; align-items: center; font-size: 13px; color: var(--tt-mute); }
#main .gi .tt .tt-tool { padding: 6px 12px; border: 1px solid var(--tt-line); border-radius: 999px; background: #fff; font: 700 13px/1.4 inherit; color: var(--tt-ink); cursor: pointer; }

/* 한 판 */
#main .gi .tt .tt-stage { display: grid; gap: 10px; }
#main .gi .tt .tt-top { display: grid; gap: 8px; }
#main .gi .tt .tt-era { position: relative; display: grid; grid-template-columns: repeat(3, 1fr); height: 26px; border-radius: 999px; background: #0f172a; overflow: hidden; }
#main .gi .tt .tt-era i { z-index: 1; display: grid; place-items: center; font: 800 12px/1 inherit; color: rgba(255,255,255,.8); letter-spacing: .06em; font-style: normal; }
#main .gi .tt .tt-era b { position: absolute; left: 0; top: 0; bottom: 0; width: 0; background: linear-gradient(90deg, #f59e0b, #3b82f6 50%, #22d3ee); transition: width .35s linear; }
#main .gi .tt .tt-stats { display: flex; flex-wrap: wrap; gap: 6px 16px; align-items: center; font-size: 14px; color: var(--tt-mute); }
#main .gi .tt .tt-stats b { font-size: 18px; color: var(--tt-ink); font-variant-numeric: tabular-nums; display: inline-block; }
#main .gi .tt .tt-stats b.is-pop { animation: tt-pop .45s ease; }
@keyframes tt-pop { 30% { transform: scale(1.35); color: #16a34a; } }
#main .gi .tt .tt-combo.is-hot b { color: #ea580c; }
#main .gi .tt .tt-combo.is-hot::after { content: " 🔥"; }
#main .gi .tt .tt-hearts i { font-style: normal; color: #ef4444; font-size: 18px; margin-right: 2px; }
#main .gi .tt .tt-hearts i.is-off { color: #cbd5e1; }
#main .gi .tt .tt-wave { margin-left: auto; font-weight: 700; }
#main .gi .tt .tt-q { min-height: 74px; padding: 12px 16px; border-radius: 16px; background: #0f172a; color: #fff; text-align: center; }
#main .gi .tt .tt-sent { margin: 0; font: 800 clamp(17px, 2.4vw, 23px)/1.45 inherit; letter-spacing: -0.01em; }
#main .gi .tt .tt-sent mark { display: inline-block; min-width: 86px; padding: 0 10px; border-radius: 8px; background: rgba(255,255,255,.14); color: #fde68a; border: 1px dashed rgba(253, 230, 138, .6); }
#main .gi .tt .tt-sent mark.is-ok { background: #16a34a; color: #fff; border-style: solid; border-color: #16a34a; }
#main .gi .tt .tt-ko { display: block; margin-top: 4px; font-size: 14px; color: rgba(255,255,255,.78); }
#main .gi .tt .tt-ko--hint { color: rgba(255,255,255,.45); }
#main .gi .tt .tt-ko--why { color: #86efac; font-weight: 700; }
#main .gi .tt .tt-sky-wrap { position: relative; display: grid; justify-items: center; }
#main .gi .tt .tt-sky { display: block; width: 100%; border-radius: 18px; touch-action: none; cursor: pointer; box-shadow: 0 30px 60px -30px rgba(2, 6, 23, .8); user-select: none; -webkit-user-select: none; }
#main .gi .tt .tt-overlay { position: absolute; inset: 0; display: grid; place-items: center; padding: 12px; background: rgba(2, 6, 23, .55); border-radius: 18px; backdrop-filter: blur(2px); }
#main .gi .tt .tt-overlay[hidden] { display: none; }
#main .gi .tt .tt-card { width: min(560px, 100%); padding: 16px 18px; border-radius: 16px; background: #fff; color: var(--tt-ink); box-shadow: 0 30px 60px -20px rgba(2, 6, 23, .8); animation: tt-card .25s ease; }
@keyframes tt-card { from { transform: translateY(14px); opacity: 0; } }
#main .gi .tt .tt-card .tt-sent { color: var(--tt-ink); font-size: 18px; text-align: left; }
#main .gi .tt .tt-card .tt-sent mark { background: #e2e8f0; color: var(--tt-ink); border-color: #cbd5e1; }
#main .gi .tt .tt-card .tt-sent mark.is-ok { background: #16a34a; color: #fff; border-color: #16a34a; }
#main .gi .tt .tt-card__tag { display: inline-block; margin-bottom: 6px; padding: 2px 10px; border-radius: 999px; background: #fee2e2; color: #b91c1c; font-size: 12.5px; font-weight: 800; }
#main .gi .tt .tt-card__ko { margin: 4px 0 0; font-size: 14px; color: var(--tt-mute); }
#main .gi .tt .tt-card__why { margin: 8px 0 0; padding: 10px 12px; border-radius: 10px; background: #f0fdf4; color: #14532d; font-size: 15px; line-height: 1.6; font-weight: 600; }
#main .gi .tt .tt-card__mine { margin: 8px 0 0; font-size: 13.5px; color: #b91c1c; }
#main .gi .tt .tt-card__row { display: flex; justify-content: space-between; align-items: center; gap: 10px; margin-top: 12px; }
#main .gi .tt .tt-card__link { font-size: 13.5px; font-weight: 700; color: var(--tt-accent); }
#main .gi .tt .tt-ctl { display: grid; grid-template-columns: 56px 1fr 56px; gap: 8px; align-items: stretch; }
#main .gi .tt .tt-ctl__btn { height: 48px; border: 1px solid var(--tt-line); border-radius: 12px; background: #f8fafc; font: 800 20px/1 inherit; color: var(--tt-ink); cursor: pointer; touch-action: manipulation; }
#main .gi .tt .tt-ctl__btn:active { background: #e2e8f0; }
#main .gi .tt .tt-ctl__lanes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; }
#main .gi .tt .tt-ctl__lanes button { display: grid; place-items: center; min-height: 48px; padding: 4px 6px; border: 1px solid var(--tt-line); border-radius: 12px; background: #fff; font: 700 14px/1.3 inherit; color: var(--tt-mute); text-align: center; cursor: pointer; touch-action: manipulation; transition: background .15s, color .15s, box-shadow .15s; }
#main .gi .tt .tt-ctl__lanes button.is-on { background: #0f172a; color: #fff; border-color: #0f172a; }
#main .gi .tt .tt-ctl__lanes button.is-on::after { content: "▲ 가속"; display: block; font-size: 10.5px; font-weight: 800; color: #fde68a; letter-spacing: .02em; }
#main .gi .tt .tt-ctl__lanes button.is-locked { background: #ca8a04; border-color: #ca8a04; color: #fff; box-shadow: 0 0 0 3px rgba(250, 204, 21, .35); }
#main .gi .tt .tt-ctl__lanes button.is-locked::after { content: "확정"; color: #fff; }
#main .gi .tt .tt-tip { margin: 0; font-size: 12.5px; color: var(--tt-mute); text-align: center; }
#main .gi .tt .tt-tip kbd { border-color: var(--tt-line); background: #f1f5f9; color: var(--tt-ink); }

/* 결과 */
#main .gi .tt .tt-result__head { padding: 22px; border-radius: 20px; color: #fff; text-align: center; background: linear-gradient(135deg, #0f172a, #1e293b); }
#main .gi .tt .tt-result__head.is-win { background: radial-gradient(120% 100% at 50% 0, #1d4ed8 0%, #0f172a 70%); }
#main .gi .tt .tt-result__tag { display: inline-block; padding: 3px 12px; border-radius: 999px; background: rgba(255,255,255,.14); font-size: 13px; font-weight: 800; }
#main .gi .tt .tt-result__score { margin: 8px 0 0; }
#main .gi .tt .tt-result__score b { font-size: clamp(44px, 7vw, 64px); font-weight: 900; letter-spacing: -0.03em; font-variant-numeric: tabular-nums; }
#main .gi .tt .tt-result__score small { margin-left: 4px; font-size: 16px; color: rgba(255,255,255,.7); }
#main .gi .tt .tt-result__stars { font-size: 26px; color: #fbbf24; letter-spacing: 3px; }
#main .gi .tt .tt-result__row { display: grid; grid-template-columns: repeat(auto-fit, minmax(110px, 1fr)); gap: 8px; margin-top: 14px; }
#main .gi .tt .tt-result__row div { padding: 8px; border-radius: 12px; background: rgba(255,255,255,.08); }
#main .gi .tt .tt-result__row small { display: block; font-size: 12px; color: rgba(255,255,255,.7); }
#main .gi .tt .tt-result__row b { font-size: 18px; }
#main .gi .tt .tt-result__note { margin: 12px 0 0; font-size: 14px; color: #fde68a; }
#main .gi .tt .tt-result__sec { margin-top: 18px; }
#main .gi .tt .tt-result__sec h3 { margin: 0 0 8px; font-size: 17px; }
#main .gi .tt .tt-wrong { margin: 0; padding: 0; list-style: none; display: grid; gap: 8px; }
#main .gi .tt .tt-wrong li { display: grid; gap: 4px; padding: 12px 14px; border: 1px solid var(--tt-line); border-left: 4px solid #ef4444; border-radius: 12px; background: #fff; }
#main .gi .tt .tt-wrong .tt-sent { font-size: 16px; color: var(--tt-ink); text-align: left; }
#main .gi .tt .tt-wrong .tt-sent mark.is-ok { background: #16a34a; color: #fff; border-color: #16a34a; }
#main .gi .tt .tt-wrong__ko { font-size: 13.5px; color: var(--tt-mute); }
#main .gi .tt .tt-wrong__why { font-size: 14px; color: #14532d; font-weight: 600; }
#main .gi .tt .tt-wrong__link { justify-self: start; font-size: 13px; font-weight: 700; color: var(--tt-accent); }
#main .gi .tt .tt-skills { margin: 0; padding: 0; list-style: none; display: grid; gap: 6px; font-size: 14px; }
#main .gi .tt .tt-skills li { display: flex; justify-content: space-between; gap: 10px; padding: 8px 12px; border-radius: 10px; background: #f1f5f9; }
#main .gi .tt .tt-skills b { color: var(--tt-ink); }
#main .gi .tt .tt-result__cta { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }

@media (max-width: 760px) {
    #main .gi .tt .tt-hero { padding: 16px; }
    #main .gi .tt .tt-hero__art { height: 170px; }
    #main .gi .tt .tt-ctl { grid-template-columns: 48px 1fr 48px; }
    #main .gi .tt .tt-ctl__lanes button { font-size: 12.5px; }
    #main .gi .tt .tt-tip { display: none; }
}