/* 칼 꽂기 — 장르: 밤 서커스 과녁 · 보라 밤하늘 · 나무 통나무 · 강철 칼날 · 금색 글씨
 * 움직임: 첫 화면 통나무가 돌고 칼이 날아와 꽂힘 / 꽂히면 통나무가 살짝 튐 / 단계 깨면 통나무가 두 쪽으로 갈라져 떨어짐 / 부딪히면 칼이 빙글 튕겨 나가고 붉게 번쩍 */
:root {
  --night: #2a1d3a;
  --night-2: #120c1c;
  --wood: #b07a45;
  --gold: #f4d58d;
  --red: #ff6b5e;
  --cream: #fff6e6;
  --color-bg: var(--night-2);
  --color-text: var(--cream);
  --color-text-secondary: #c4b8d4;
  color-scheme: dark;
}
html, body { background: var(--night-2); color: var(--cream); }
body { background-image: radial-gradient(rgba(244, 213, 141, 0.18) 1px, transparent 1.5px); background-size: 34px 34px; }
.kn { max-width: 980px; margin: 0 auto; padding: 0 16px 40px; }
.kn-v { max-width: 440px; margin: 0 auto; padding-top: 14px; }

.kn-hero { position: relative; height: 210px; border: 2px solid var(--gold); border-radius: 16px; background: linear-gradient(var(--night), var(--night-2)); overflow: hidden; }
.kn-log { position: absolute; left: 50%; top: 22px; width: 104px; height: 104px; margin-left: -52px; border-radius: 50%; background: radial-gradient(circle, #8a5a2b 0 12%, var(--wood) 13% 30%, #8a5a2b 31% 33%, var(--wood) 34% 58%, #8a5a2b 59% 61%, var(--wood) 62% 88%, #6e4420 89%); animation: kn-spin 2.4s linear infinite; }
.kn-log i { position: absolute; left: 50%; top: 50%; width: 8px; height: 52px; margin-left: -4px; transform-origin: 50% 0; transform: rotate(var(--a)) translateY(40px); background: linear-gradient(#e6ebf0 0 45%, #2b2b33 45% 52%, #7a3b1e 52%); border-radius: 4px 4px 2px 2px; }
@keyframes kn-spin { to { transform: rotate(360deg); } }
.kn-throw { position: absolute; left: 50%; bottom: -60px; width: 8px; height: 52px; margin-left: -4px; background: linear-gradient(#e6ebf0 0 45%, #2b2b33 45% 52%, #7a3b1e 52%); border-radius: 4px 4px 2px 2px; animation: kn-up 2.4s 0.6s ease-in infinite; }
@keyframes kn-up { 0% { transform: none; opacity: 1; } 12% { transform: translateY(-118px); opacity: 1; } 13%, 100% { transform: translateY(-118px); opacity: 0; } }

.kn-title { margin: 18px 0 0; font: 900 44px/1.05 var(--font-sans); letter-spacing: -0.04em; }
.kn-lead { margin: 8px 0 0; font: 600 15px/23px var(--font-sans); color: var(--color-text-secondary); word-break: keep-all; }
.kn-chal { display: grid; gap: 6px; margin-top: 16px; padding: 12px 14px 14px; border: 2px dashed var(--gold); border-radius: 14px; background: var(--night); font: 600 14px/21px var(--font-sans); }
.kn-chal b { font: 900 18px/1.2 var(--font-sans); color: var(--gold); }
.kn-btns { display: grid; gap: 10px; margin-top: 16px; }
.kn-go { display: flex; align-items: center; gap: 12px; width: 100%; min-height: 58px; padding: 0 16px; border: 2px solid #000; border-radius: 14px; background: var(--gold); color: #2a1d06; box-shadow: 0 5px 0 #000; font: 800 16px/1.2 var(--font-sans); text-align: left; cursor: pointer; transition: transform 0.12s cubic-bezier(.34, 1.56, .64, 1), box-shadow 0.12s; }
.kn-go:active { transform: translateY(5px); box-shadow: 0 0 0 #000; }
.kn-go__k { padding: 6px 9px; border-radius: 9px; background: rgba(0, 0, 0, 0.14); font: 900 14px/1 var(--font-sans); white-space: nowrap; }
.kn-go--sub { background: var(--night); color: var(--cream); }
.kn-go--sub .kn-go__k { background: rgba(255, 255, 255, 0.1); color: var(--gold); }
.kn-rec { margin: 12px 0 0; font: 700 14px/20px var(--font-sans); color: var(--color-text-secondary); }

.kn-hud { display: grid; grid-template-columns: auto 1fr 44px; align-items: center; gap: 12px; margin-bottom: 8px; }
.kn-score { min-width: 48px; font: 900 34px/1 var(--font-sans); color: var(--gold); }
.kn-tip { font: 700 13px/1 var(--font-sans); color: var(--color-text-secondary); }
.kn-pause { width: 44px; height: 44px; border: 2px solid var(--gold); border-radius: 12px; background: var(--night); font: 900 16px/1 var(--font-sans); color: var(--cream); cursor: pointer; }
.kn-stage { position: relative; }
#cv { display: block; width: min(100%, calc((100dvh - 170px) * 360 / 560)); aspect-ratio: 360 / 560; height: auto; margin: 0 auto; border: 2px solid var(--gold); border-radius: 14px; touch-action: none; user-select: none; -webkit-user-select: none; cursor: pointer; }
.kn-pausebox { position: absolute; inset: 0; display: grid; place-content: center; gap: 10px; padding: 24px; border-radius: 14px; background: rgba(18, 12, 28, 0.92); text-align: center; }
.kn-pausebox b { font: 900 28px/1 var(--font-sans); }
.kn-pausebox span { font: 700 15px/22px var(--font-sans); color: var(--color-text-secondary); }

.kn-card { display: grid; justify-items: center; gap: 6px; padding: 20px 16px; border: 2px solid var(--gold); border-radius: 16px; background: var(--night); }
.kn-card__k { font: 800 13px/1 var(--font-sans); color: var(--color-text-secondary); }
.kn-card__n { margin: 0; font: 900 22px/1 var(--font-sans); }
.kn-card__n b { font-size: 64px; color: var(--gold); }
.kn-card__why { font: 800 14px/1 var(--font-sans); color: var(--red); }
.kn-line { margin: 14px 0 0; font: 700 15px/22px var(--font-sans); word-break: keep-all; }
.kn-coupon { display: grid; gap: 10px; margin-top: 12px; padding: 12px; border: 2px dashed #5a4a70; border-radius: 14px; }
.kn-coupon pre { margin: 0; white-space: pre-wrap; font: 600 13px/20px var(--font-sans); color: var(--color-text-secondary); }

.kn-doc { max-width: 640px; margin: 40px auto 0; }
.kn-doc h2 { font: 900 20px/1.3 var(--font-sans); }
.kn-doc p, .kn-doc summary { font: 500 14.5px/23px var(--font-sans); color: var(--color-text-secondary); }
.kn-doc summary { color: var(--cream); font-weight: 700; cursor: pointer; }
.rm *, .rm *::before, .rm *::after { animation: none !important; transition: none !important; }