body {
    margin: 0;
    background: #ffffff;
    overflow: hidden; /* 필요하면 스크롤 막기 */
}

/* 위쪽 200px 박스 - 화면 상단에 고정 */
.top-box {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 25%;
    background: linear-gradient(to bottom, rgba(104, 104, 104, 0.7), rgba(255, 255, 255, 0));
    z-index: 20;

    display: flex;              /* 🔹 flex 컨테이너로 만들기 */
    flex-direction: column;     /* 위아래로 쌓기 (h1, h2) */
    justify-content: center;    /* 🔹 세로 가운데 정렬 */
    align-items: center;        /* 🔹 가로 가운데 정렬 */
}

.top-box h1 {
    margin: 0;
    padding: 0;
    font-size: clamp(24px, 4vw, 60px);
    color:#000000;
    text-align: center;
}

.top-box h2 {
    margin-top: 0;
    margin-bottom: 0;
    padding: 0;
    font-size: clamp(14px, 2vw, 32px);
    color:#000000;
    text-align: center;
}

/* 아래 고정 푸터 */
.bottom-box {
    position: fixed;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 15%;
    background: linear-gradient(to top, rgba(104, 104, 104, 0.5), rgba(255, 255, 255, 0));

    display: flex;
    justify-content: center;
    align-items: center;
}

/* 컨트롤 박스 스타일 */
.bottom-box .controls {
    background: rgba(255, 255, 255, 0.95);
    padding: 8px 12px;
    border-radius: 6px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
    font-family: system-ui;
    font-size: 13px;
}

/* 가운데 SVG 영역 - 화면 전체를 쓰면서 가운데 정렬 */
.stage-wrap {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;              /* 다시 전체 화면 기준 */
    display: flex;
    justify-content: center;
    align-items: center;
    background: #ffffff;
    z-index: 0;                  /* 맨 뒤 */
}

/* SVG 자체는 예전처럼 전체에 맞게 */
.stage {
    width: 100%;
    height: auto;
    max-height: 100vh;
    display: block;
}

/* 점(원) 스타일 */
.hold-dot {
    fill: rgb(0, 0, 0);
    stroke: #fff;
    stroke-width: 0;
    transition: transform 0.15s ease, fill 0.15s ease, stroke-width 0.15s ease;
}

/* 선 스타일 */
.attempt-line {
    stroke: #000000;
    stroke-width: 0.2;
    stroke-linecap: round;
    stroke-linejoin: round;
    fill: none;
    opacity: 0.5;
    transition: stroke 0.15s ease, stroke-width 0.15s ease, opacity 0.15s ease;
}

.bottom-info {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    font-size: 14px;
    color: #000;
    background: rgba(255, 255, 255, 0.9);
    padding: 6px 10px;
    border-radius: 6px;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.12);
    min-width: 220px;
    text-align: center;
}

.highlight {
    filter: drop-shadow(0 0 4px rgba(0, 0, 0, 0.15));
}

.attempt-line.highlight {
    stroke: #ff5a2f;
    stroke-width: 1.4;
    opacity: 1;
}

.hold-dot.highlight {
    fill: #ff5a2f;
    stroke: #ffffff;
    stroke-width: 1;
    transform: scale(2.2);
    transform-box: fill-box;
    transform-origin: center;
}

.tooltip {
    position: fixed;
    top: 0;
    left: 0;
    padding: 8px 10px;
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid rgba(0, 0, 0, 0.05);
    border-radius: 6px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    font-size: 12px;
    color: #111;
    pointer-events: none;
    z-index: 999;
    line-height: 1.4;
}