/* 마우스 DPI 측정(/tools/mouse-dpi/) 전용.
 * tools-bottleneck.css · tools-sensitivity.css · tools-measure.css 다음에 링크된다 — 토큰(--site-*, --bn-*)과
 * .bn·.bn-doc·.gs-cta·.sv-links·.sv-field·.mt-label·.mt-unit·.mt-stats·.mt-again·.mt-steps·.mt-pad-meter 를 그대로 쓴다.
 * 구조: 제목 → 거리 고르기 → 측정 무대(측정 칸 | 읽은 값) → 설명.
 * 어떤 문구를 보일지는 루트 .dp 의 data-state · data-* 플래그로 고른다(tools-dpi.js 가 바꾼다).
 * 모서리: 무대 20px · 칸 16px · 칩·버튼·입력 10px(다른 측정 도구와 같은 단계). 색은 토큰만.
 * ⚠ prefers-reduced-motion 은 CSS 전환만 끈다. 측정은 막지 않는다.
 */

/* ── 거리 고르기 ───────────────────────────────────────────────── */
.dp-opts { margin-top: 24px; display: flex; flex-wrap: wrap; gap: 14px 28px; align-items: flex-start; }
.dp-opt { margin: 0; padding: 0; border: 0; min-width: 0; }
.dp-opt[hidden] { display: none !important; }
.dp-opt legend { padding: 0; margin-bottom: 8px; font-size: .8125rem; font-weight: 600; color: var(--site-text-3); }
.dp-seg { display: flex; flex-wrap: wrap; gap: 6px; }
.dp-chip { position: relative; display: inline-flex; cursor: pointer; }
.dp-chip input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.dp-chip > span {
    display: inline-flex; align-items: center; min-height: 40px; padding: 9px 14px; border-radius: 10px;
    background: var(--site-surface-2); border: 1px solid transparent;
    font-size: .875rem; font-weight: 600; line-height: 1.35; color: var(--site-text-2); white-space: nowrap;
    transition: background-color .15s, border-color .15s, color .15s;
}
.dp-chip:hover > span { background: var(--site-surface-3); color: var(--site-text); }
.dp-chip input:checked + span { border-color: var(--site-accent); color: var(--site-text); }
.dp-chip input:focus-visible + span { outline: 2px solid var(--site-focus); outline-offset: 2px; }
.dp-chip:active > span { transform: translateY(1px); }
.dp-custom-row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.dp-field { width: 140px; }
.dp-field input { height: 48px; padding: 20px 12px 6px; }
.dp-field > label { position: absolute; left: 12px; top: 6px; font-size: .75rem; font-weight: 600; color: var(--site-text-3); pointer-events: none; }
.dp-help { margin-top: 6px !important; font-size: .8125rem; color: var(--site-text-3); }

/* ── 측정 무대 ─────────────────────────────────────────────────── */
.dp-stage {
    margin-top: 16px;
    display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: 16px; align-items: stretch;
}
.dp-pad {
    position: relative; min-height: clamp(300px, 32vw, 380px); border-radius: 20px; overflow: hidden;
    display: grid; place-items: center; padding: 28px 20px 40px; text-align: center;
    background: var(--site-bg-raise);
    border: 1px dashed var(--site-line-2);
    cursor: pointer; touch-action: none; user-select: none; -webkit-user-select: none;
    transition: border-color .2s;
}
.dp-pad:hover { border-color: var(--site-text-3); }
.dp-pad:focus-visible { outline: 2px solid var(--site-focus); outline-offset: 2px; }
.dp[data-state="running"] .dp-pad { border-style: solid; border-color: var(--site-accent); cursor: none; }
.dp[data-state="running"] .dp-pad:focus-visible { outline: none; }   /* 재는 동안은 테두리 색이 곧 초점 표시(두 겹 방지) */
.dp-pad-idle, .dp-pad-run { display: flex; flex-direction: column; align-items: center; gap: 8px; max-width: 340px; }
.dp-pad-idle .bi { font-size: 1.75rem; color: var(--site-text); }
.dp-pad-dist { font-size: clamp(2rem, 1.5rem + 2vw, 2.75rem); font-weight: 800; line-height: 1.1; letter-spacing: -.02em; color: var(--site-text); white-space: nowrap; }
.dp-pad-text { font-size: .9375rem; font-weight: 600; line-height: 1.55; color: var(--site-text-2); }
.dp-pad-count { font-size: clamp(3rem, 2rem + 4vw, 4.5rem); font-weight: 800; line-height: 1; letter-spacing: -.03em; color: var(--site-text); }
.dp-pad-run { display: none; }
.dp[data-state="running"] .dp-pad-run { display: flex; }
.dp[data-state="running"] .dp-pad-idle { display: none; }
.dp-meter { display: none; }
.dp[data-state="running"][data-meter] .dp-meter { display: block; }
.dp-meter span { transform: scaleX(0); }

/* ── 읽은 값 ───────────────────────────────────────────────────── */
.dp-read {
    min-width: 0; padding: clamp(22px, 3vw, 30px); border-radius: 20px;
    background: var(--site-surface); box-shadow: inset 0 1px 0 var(--site-line);
    display: flex; flex-direction: column; align-items: flex-start;
}
.dp-big {
    margin-top: 6px !important; display: flex; align-items: baseline; gap: 8px;
    font-size: clamp(3.25rem, 2.2rem + 4vw, 5rem); font-weight: 800; letter-spacing: -.035em; line-height: 1;
    color: var(--site-text-3); white-space: nowrap;
}
.dp-big > .bn-mono { font-family: var(--bn-mono); font-weight: 800; }
.dp[data-has] .dp-big { color: var(--site-text-2); }
.dp[data-state="done"] .dp-big { color: var(--bn-gpu); }
.dp-live { width: 100%; }

/* 상태 문구: 기본은 숨기고 상태·플래그에 맞는 줄만. */
.dp-msg { display: none; margin-top: 14px !important; font-size: .9375rem; line-height: 1.6; color: var(--site-text-2); max-width: 36em; }
.dp-msg--warn { color: var(--bn-warn); }
.dp-noscript { display: block; }
.dp[data-state="idle"] [data-for="idle"],
.dp[data-state="running"] [data-for="running"],
.dp[data-state="between"] [data-for="between"],
.dp[data-state="done"] [data-for="done"],
.dp[data-state="lockfail"] [data-for="lockfail"],
.dp[data-state="nosupport"] [data-for="nosupport"],
.dp:not([data-state="running"])[data-short] [data-for="short"],
.dp:not([data-state="running"])[data-cancel] [data-for="cancel"],
.dp[data-unverified]:not([data-state="running"]) [data-for="unverified"],
.dp[data-touch] [data-for="touch"],
.dp[data-disterr] [data-for="disterr"] { display: block; }

.dp-read > .mt-stats { margin-top: 20px; width: 100%; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.dp-read > .dp-sum { margin-top: 14px; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.dp-read .mt-stats dd { font-size: 1.125rem; }
.dp-claimed { margin-top: 18px; width: 100%; max-width: 220px; }
.dp-claimed input::placeholder { color: var(--site-text-3); opacity: 1; }
.dp-field.is-invalid input { border-color: var(--site-danger); }
html.dp-js .dp .mt-again { visibility: visible; }
html:not(.dp-js) .dp .mt-again { visibility: hidden; }

/* ── 반응형 ───────────────────────────────────────────────────── */
@media (max-width: 860px) {
    .dp-stage { grid-template-columns: minmax(0, 1fr); }
    .dp-pad { min-height: 260px; }
}
@media (max-width: 420px) {
    .dp-read .mt-stats dd { font-size: 1rem; }
    .dp-field { width: 120px; }
}
@media (prefers-reduced-motion: reduce) {
    .dp-chip > span, .dp-pad { transition: none !important; }
}