/* 공명 인트로 — intro.js가 만드는 화면의 모양. 색은 v3 브리프 토큰을 그대로 쓴다. */
.ri {
  --ri-clay: #D97757; --ri-char: #141413; --ri-char-2: #1F1E1C; --ri-paper: #F4F1EA;
  --ri-mute: #A8A49B; --ri-tide: #2B6E69; --ri-tide-hi: #4FA39A;
  --ri-font: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  --ri-mono: ui-monospace, "SF Mono", Menlo, Consolas, "D2Coding", monospace;
  --ri-display: "Noto Serif KR", "Nanum Myeongjo", AppleMyungjo, Batang, serif;
  --ri-latin: "Instrument Serif", "Iowan Old Style", Georgia, serif;
  position: absolute; inset: 0; overflow: hidden;
  background: var(--ri-char); color: var(--ri-paper);
  font-family: var(--ri-font); line-height: 1.2;
  word-break: keep-all; overflow-wrap: anywhere;
  -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
  -webkit-tap-highlight-color: transparent;
}
.ri *, .ri *::before, .ri *::after { box-sizing: border-box; }
.ri-stage { position: absolute; inset: 0; user-select: none; -webkit-user-select: none; pointer-events: none; }
.ri-cv { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.ri-vig { position: absolute; inset: 0; background: radial-gradient(120% 95% at 50% 46%, transparent 52%, rgba(0, 0, 0, .5) 100%); }
.ri-grain {
  position: absolute; inset: -60px; opacity: .085; mix-blend-mode: overlay; will-change: transform;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='180' height='180'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1  0 0 0 0 1  0 0 0 0 1  0 0 0 1 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
}

/* 낱말 가리개: 바깥이 가리고 안쪽이 올라온다 */
.ri-w { display: inline-block; overflow: hidden; vertical-align: top; padding: .08em .02em .14em; margin: -.08em -.02em -.14em; }
.ri-w > span { display: inline-block; transform: translate3d(0, 110%, 0); will-change: transform; }

/* 1~2막 자막 */
.ri-cap { position: absolute; margin: 0; font-weight: 700; letter-spacing: -.02em; line-height: 1.25; text-wrap: balance; }
.ri-cap .ri-dim { color: var(--ri-mute); }
.ri-step { text-align: center; font-weight: 700; color: var(--ri-paper); }
.ri-step .ri-dim { color: var(--ri-clay); }

/* 기능 넷: 넓은 화면은 Planhat식 세로 탭 */
.ri-list { position: absolute; margin: 0; padding: 0 0 0 1.1em; }
.ri-li { position: relative; margin: 0 0 .62em; color: rgba(168, 164, 155, .4); will-change: color; }
.ri-li:last-child { margin-bottom: 0; }
.ri-num { display: block; margin: 0 0 .32em; font: 600 max(14px, .34em)/1.2 var(--ri-mono); letter-spacing: .1em; }
.ri-tt { display: block; font-weight: 800; letter-spacing: -.025em; line-height: 1.12; text-wrap: balance; }
.ri-mark { position: absolute; left: 0; top: 0; width: 3px; height: 100px; border-radius: 3px; background: var(--ri-clay); transform-origin: 0 0; box-shadow: 0 0 14px rgba(217, 119, 87, .55); }

/* 기능 넷: 세로 화면은 지금 기능만 크게 + 진행 막대 */
.ri-pt { position: absolute; }
.ri-pti { position: absolute; left: 0; right: 0; top: 0; }
.ri-pti .ri-num { color: var(--ri-mute); font-size: max(14px, .4em); margin-bottom: .45em; }
.ri-pti .ri-tt { color: var(--ri-paper); }
.ri-prog4 { position: absolute; left: 0; right: 0; display: flex; gap: 6px; }
.ri-prog4 > span { flex: 1; height: 3px; border-radius: 3px; background: rgba(244, 241, 234, .16); overflow: hidden; }
.ri-prog4 i { display: block; height: 100%; background: var(--ri-clay); transform-origin: 0 50%; transform: scaleX(0); }

/* 끝 화면 로고 묶음 */
.ri-lock { position: absolute; left: 0; right: 0; top: 0; text-align: center; pointer-events: none; }
.ri-name {
  display: inline-block; margin: 0; font-family: var(--ri-display); font-weight: 900; line-height: 1; letter-spacing: -.02em;
  color: var(--ri-paper); opacity: 0; text-shadow: 0 0 .4em rgba(217, 119, 87, .2); will-change: opacity, filter, transform;
}
.ri-en { display: block; margin: 0; font-family: var(--ri-latin); font-style: italic; font-weight: 400; line-height: 1.05; letter-spacing: .01em; color: rgba(244, 241, 234, .8); opacity: 0; }
.ri-tag { display: block; margin: 0 auto; padding: 0 16px; font-weight: 700; letter-spacing: -.02em; line-height: 1.3; color: var(--ri-paper); text-wrap: balance; }
.ri-tag .ri-dim { color: var(--ri-mute); }

.ri-sr { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }

/* 멈춤·건너뛰기 */
.ri-ctrl { position: absolute; right: max(16px, 1.6vw); bottom: max(16px, 1.6vw); z-index: 2; display: flex; gap: 8px; transition: opacity .35s, visibility 0s; }
.ri-btn {
  position: relative; display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-width: 48px; min-height: 48px; padding: 0 18px; overflow: hidden;
  border: 1px solid rgba(244, 241, 234, .22); border-radius: 999px;
  background: rgba(31, 30, 28, .66); -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
  color: var(--ri-paper); font: 600 16px/1 var(--ri-font); letter-spacing: -.01em; cursor: pointer;
  transition: background .15s, border-color .15s;
}
.ri-btn:hover { background: rgba(58, 56, 52, .82); border-color: rgba(244, 241, 234, .4); }
.ri-btn:focus-visible { outline: 3px solid var(--ri-clay); outline-offset: 3px; }
.ri-btn svg { width: 18px; height: 18px; flex: none; }
.ri-pause { padding: 0; }
.ri-bar { position: absolute; left: 16px; right: 16px; bottom: 7px; height: 2px; border-radius: 2px; background: rgba(244, 241, 234, .16); overflow: hidden; }
.ri-bar i { display: block; height: 100%; background: var(--ri-clay); transform-origin: 0 50%; transform: scaleX(0); }
.ri-done .ri-ctrl, .ri-noctrl .ri-ctrl { opacity: 0; visibility: hidden; transition: opacity .35s, visibility 0s .35s; }

/* 건너뛰기를 누르면 짧게 어두워졌다가 끝 화면이 밝아진다 */
.ri-flash .ri-stage { animation: ri-flash .5s cubic-bezier(.16, 1, .3, 1); }
@keyframes ri-flash { from { opacity: 0; } to { opacity: 1; } }