/* 冊子の厚みシミュレーター（/book/spine） */
.sp-grid { display: grid; grid-template-columns: minmax(260px, 340px) 1fr; gap: 20px; align-items: start; }
@media (max-width: 860px) { .sp-grid { grid-template-columns: 1fr; } }
.sp-form { padding: 18px; }
.sp-form label.field { margin-bottom: 12px; }
.sp-form select, .sp-form input[type="number"] { width: 100%; font-size: 15px; padding: 8px 10px; }
.sp-pages { display: flex; gap: 8px; align-items: center; }
.sp-pages input[type="number"] { width: 110px; }
.sp-pages input[type="range"] { flex: 1; accent-color: var(--accent); }
.sp-result { display: grid; gap: 14px; }
.sp-hero { padding: 20px 22px; display: grid; grid-template-columns: auto 1fr; gap: 18px; align-items: center; background: var(--accent-soft); border-color: transparent; }
.sp-hero .big { font-family: "Noto Serif JP", serif; font-size: 52px; line-height: 1; color: var(--accent-2); white-space: nowrap; }
.sp-hero .big small { font-size: 18px; margin-left: 4px; }
.sp-hero dl { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 4px 12px; font-size: 14px; }
.sp-hero dt { color: var(--ink-3); } .sp-hero dd { margin: 0; }
@media (max-width: 520px) { .sp-hero { grid-template-columns: 1fr; } .sp-hero .big { font-size: 44px; } }
.sp-two { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 700px) { .sp-two { grid-template-columns: 1fr; } }
.sp-box { padding: 16px 18px; }
.sp-box h2 { font-size: 16px; margin: 0 0 10px; }
.sp-tbl { width: 100%; border-collapse: collapse; font-size: 14px; }
.sp-tbl th { text-align: left; font-weight: 400; padding: 5px 6px 5px 0; white-space: nowrap; color: var(--ink-2); }
.sp-tbl td { padding: 5px 6px; white-space: nowrap; }
.sp-tbl td:last-child { width: 100%; }
.sp-tbl td i { display: block; height: 10px; background: #c9d6ea; border-radius: 3px; min-width: 2px; }
.sp-tbl tr.now th, .sp-tbl tr.now td { font-weight: 700; color: var(--accent-2); }
.sp-tbl tr.now td i { background: var(--accent); }
.real-wrap { display: grid; grid-template-columns: auto auto; justify-content: start; gap: 10px 14px; align-items: start; }
.real-wrap .note { grid-column: 1 / -1; margin: 0; }
.real-book { background: linear-gradient(90deg, #4d6a93, #2f5597 40%, #243f73); border-radius: 1px; position: relative; min-width: 2px; box-shadow: 2px 2px 6px rgba(0,0,0,.18); }
.real-book span { position: absolute; left: 100%; top: 0; margin-left: 6px; font-size: 12px; color: var(--ink-2); white-space: nowrap; }
.real-ruler { position: relative; width: 26px; border-left: 1px solid var(--ink-3); margin-left: 44px; }
.real-ruler i { position: absolute; left: 0; width: 8px; border-top: 1px solid var(--ink-3); }
.real-ruler i b { position: absolute; left: 10px; top: -8px; font-size: 10px; font-weight: 400; color: var(--ink-3); }
.sp-spread { display: grid; gap: 6px; font-size: 14px; }
.sp-spread b { font-size: 16px; }
.sp-fig { display: grid; grid-template-columns: 1fr auto 1fr; gap: 0; border: 1px solid var(--ink-3); overflow: hidden; margin: 0; font-size: 12px; text-align: center; aspect-ratio: 308 / 210; }
/* 塗り足し枠：外側の破線が塗り足し3mmの端、内側の実線が仕上がり線。長辺（高さ）が綴じ口になるよう縦長で描く */
.sp-bleed { position: relative; padding: 12px; border: 2px dashed #b25e00; border-radius: 3px; background: repeating-linear-gradient(45deg, #fff4e8 0 6px, #fde8d2 6px 12px); margin: 6px 0 4px; }
.sp-bleed::after { content: "塗り足し 3mm（断裁で切れる）"; position: absolute; right: 6px; top: -10px; background: #fff; color: #b25e00; font-size: 11px; padding: 0 4px; }
.sp-bleed .sp-fig { background: #fff; }
.sp-bleed-note { font-size: 12px; color: var(--ink-3); margin: 0 0 8px; }
.sp-fig > div { display: grid; place-items: center; }
.sp-fig .f4 { background: #f3efe6; } .sp-fig .f1 { background: #e8e1d2; } .sp-fig .sp { background: var(--accent); color: #fff; writing-mode: vertical-rl; padding: 0 2px; min-width: 14px; }

/* 表紙データを重ねて確認（2026-10-21） */
.cv-drop { border: 2px dashed var(--line); border-radius: 10px; padding: 16px; text-align: center; cursor: pointer; background: #fbfaf7; }
.cv-drop:hover, .cv-drop.over, .cv-drop:focus-visible { border-color: var(--accent); background: #fff; outline: none; }
.cv-drop b { display: block; font-size: 14px; } .cv-drop small { display: block; color: var(--ink-3); font-size: 12px; margin-top: 4px; }
.cv-items { list-style: none; padding: 0; margin: 10px 0 0; }
.cv-items li { display: flex; gap: 8px; align-items: flex-start; font-size: 14px; padding: 5px 0; border-bottom: 1px dashed var(--line); }
.cv-items li:last-child { border-bottom: 0; }
.cv-items .mark { flex: 0 0 22px; height: 22px; border-radius: 50%; display: grid; place-items: center; font-size: 12px; font-weight: 700; color: #fff; margin-top: 1px; }
.cv-items .mark.ok { background: var(--ok); } .cv-items .mark.warn { background: #d49b1a; } .cv-items .mark.ng { background: var(--ng); } .cv-items .mark.info { background: #8a94a6; }
.cv-wrap { margin: 10px 0 0; overflow: auto; }
.cv-wrap canvas { display: block; max-width: 100%; height: auto; border: 1px solid var(--line); background: #fff; box-shadow: var(--shadow); }
.cv-zoom { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin: 10px 0 0; font-size: 13px; }
.cv-zoom input[type=range] { width: 140px; }
.cv-zoom small { color: var(--ink-3); flex-basis: 100%; }
.cv-wrap { max-height: 80vh; cursor: grab; width: 100%; max-width: 100%; box-sizing: border-box; }
#cvBox { min-width: 0; }
.cv-wrap.dragging { cursor: grabbing; user-select: none; }
.cv-wrap canvas { max-width: none; }