/* =========================================================
   BAKI BAKI 合成 — ガラスヒビ加工ツール
   白ベース・グリッドデザイン
   ========================================================= */
:root{
  --bg:#eef2f7;            /* ページ地（グリッドの下地） */
  --grid:rgba(40,70,110,.06);
  --panel:#ffffff;         /* カード面 */
  --panel-2:#f6f9fc;       /* 一段沈んだ面 */
  --line:#dde5ee;          /* 罫線 */
  --line-soft:#e8eef5;
  --ink:#1d2b3a;           /* 主要テキスト */
  --ink-dim:#6a7a8c;       /* 補助テキスト */
  --accent:#2f9bd6;        /* ブランドのシアンブルー */
  --accent-deep:#1d6f97;
  --accent-ink:#15648c;    /* 明色背景上で読める濃いアクセント */
  --hot:#ff7a59;
  --glow:rgba(47,155,214,.30);
  --shadow:0 18px 40px -24px rgba(20,40,70,.45);
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{
  background:
    radial-gradient(1100px 640px at 72% -12%, rgba(47,155,214,.10), transparent 60%),
    radial-gradient(820px 560px at -8% 112%, rgba(255,122,89,.06), transparent 55%),
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px),
    var(--bg);
  background-size:auto,auto,44px 44px,44px 44px,auto;
  color:var(--ink);
  font-family:"Zen Kaku Gothic New",sans-serif;
  min-height:100vh;
  overflow-x:hidden;
}
.wrap{position:relative;z-index:1;max-width:1280px;margin:0 auto;padding:28px 22px 70px}

/* ---------- header ---------- */
header{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:22px}
.brand h1{
  font-family:"Orbitron","Zen Kaku Gothic New",sans-serif;font-weight:800;letter-spacing:.01em;
  font-size:clamp(24px,4.4vw,42px);line-height:1;
  color:var(--accent);
  text-shadow:0 2px 18px rgba(47,155,214,.22);
  display:flex;align-items:baseline;gap:.4em;
}
/* Orbitron と和文でメトリクスが異なり「合成」が下がって見えるため微調整 */
.brand h1 .jp{font-family:"Zen Kaku Gothic New",sans-serif;font-weight:700;color:var(--ink);
  line-height:1;transform:translateY(-0.06em)}
.brand .sub{margin-top:9px;color:var(--ink-dim);font-size:13px;letter-spacing:.02em}
.brand .sub b{color:var(--accent-ink);font-weight:600}
.tag{font-family:"DM Mono",monospace;font-size:11px;color:var(--ink-dim);border:1px solid var(--line);
  padding:6px 10px;border-radius:6px;background:var(--panel);white-space:nowrap;box-shadow:var(--shadow);
  display:inline-flex;align-items:center;gap:7px}
.tag .ico{width:14px;height:14px;color:var(--accent)}

.layout{display:grid;grid-template-columns:1fr 320px;gap:18px;align-items:start}
@media(max-width:880px){.layout{grid-template-columns:1fr}}
/* PC（2カラム時）：プレビュー列をスクロールに追従させる */
@media(min-width:881px){.stage-col{position:sticky;top:18px;align-self:start}}

/* ---------- stage (canvas) ---------- */
.stage{
  position:relative;border:1px solid var(--line);border-radius:12px;overflow:hidden;
  background:
    linear-gradient(#ffffff,#ffffff) padding-box,
    repeating-conic-gradient(#eef2f7 0% 25%, #f7fafc 0% 50%) 0/26px 26px;
  min-height:340px;display:flex;align-items:center;justify-content:center;
  box-shadow:inset 0 0 0 1px rgba(47,155,214,.05), var(--shadow);
}
#view{display:block;max-width:100%;height:auto;cursor:crosshair;touch-action:none;will-change:transform}
.drop-hint{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;color:var(--ink-dim);text-align:center;padding:20px;pointer-events:none;transition:.2s}
.drop-hint .ic{width:44px;height:44px;color:var(--accent);opacity:.85}
.drop-hint b{color:var(--ink);font-weight:600}
.stage.drag{outline:2px dashed var(--accent);outline-offset:-8px;background:
    linear-gradient(rgba(47,155,214,.06),rgba(47,155,214,.06)) padding-box,
    repeating-conic-gradient(#eef2f7 0% 25%, #f7fafc 0% 50%) 0/26px 26px;}
.crosshair-tip{position:absolute;left:12px;bottom:10px;font-family:"DM Mono",monospace;font-size:11px;
  color:var(--ink-dim);background:rgba(255,255,255,.82);border:1px solid var(--line);padding:4px 8px;border-radius:6px;
  pointer-events:none;backdrop-filter:blur(2px)}

/* ---------- control panel ---------- */
.panel{background:var(--panel);border:1px solid var(--line);
  border-radius:12px;padding:16px 16px 18px;box-shadow:var(--shadow)}
.panel h2{font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--accent-deep);
  font-family:"DM Mono",monospace;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.panel h2::before{content:"";width:6px;height:6px;background:var(--accent);border-radius:50%;box-shadow:0 0 8px var(--glow)}

.ctrl{margin-bottom:16px}
.ctrl .row{display:flex;justify-content:space-between;align-items:center;gap:8px;margin-bottom:7px}
.ctrl label{font-size:13px;color:var(--ink)}
.ctrl .rgt{display:flex;align-items:center;gap:7px;flex:none}
.ctrl .val{font-family:"DM Mono",monospace;font-size:12px;color:var(--accent-ink);background:#eef6fc;
  border:1px solid var(--line);padding:1px 7px;border-radius:5px;min-width:42px;text-align:center}
/* パラメーターのロック（ON＝シャッフルで固定） */
.lock{appearance:none;-webkit-appearance:none;border:1px solid var(--line);background:var(--panel);
  color:var(--ink-dim);width:24px;height:24px;border-radius:7px;padding:0;cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;transition:.15s;flex:none}
.lock svg{width:13px;height:13px}
.lock:hover{border-color:var(--accent);color:var(--accent-ink)}
.lock.on{background:var(--accent);border-color:var(--accent);color:#fff;
  box-shadow:0 0 0 3px rgba(47,155,214,.16)}
.ctrl.is-locked label{color:var(--accent-ink)}

/* 映り込み画像 */
.reflect-ctrl{margin-top:18px;padding-top:16px;border-top:1px solid var(--line-soft)}
.refl-buttons{display:flex;gap:6px;margin-top:10px}
.act.mini{font-family:"Zen Kaku Gothic New",sans-serif;font-size:12px;padding:8px 10px;border-radius:8px;
  border:1px solid var(--line);background:var(--panel-2);color:var(--ink);cursor:pointer;transition:.15s;
  display:inline-flex;align-items:center;justify-content:center;gap:6px;flex:1}
.act.mini .ico{width:15px;height:15px}
.act.mini:hover{border-color:var(--accent);color:var(--accent-ink);background:#f3fafe}
.act.mini.refl-clear{flex:0 0 auto;width:38px;color:var(--ink-dim)}
.ctrl-note{margin:9px 0 0;font-size:11px;line-height:1.6;color:var(--ink-dim)}
/* スライダー：現在値まで色が満ちるトラック＋白いつまみ（--p はJSで更新） */
input[type=range]{-webkit-appearance:none;appearance:none;width:100%;height:6px;border-radius:999px;outline:none;cursor:pointer;
  background:linear-gradient(90deg,var(--accent),var(--accent-deep)) no-repeat, var(--line);
  background-size:var(--p,0%) 100%;}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:18px;height:18px;border-radius:50%;
  background:#fff;border:2px solid var(--accent);cursor:pointer;
  box-shadow:0 2px 6px rgba(20,40,70,.22);transition:transform .12s ease, box-shadow .12s ease}
input[type=range]:hover::-webkit-slider-thumb{box-shadow:0 0 0 6px rgba(47,155,214,.12),0 2px 6px rgba(20,40,70,.22)}
input[type=range]:active::-webkit-slider-thumb{transform:scale(1.14);box-shadow:0 0 0 8px rgba(47,155,214,.16),0 3px 9px rgba(20,40,70,.3)}
input[type=range]:focus-visible::-webkit-slider-thumb{box-shadow:0 0 0 6px rgba(47,155,214,.2),0 2px 6px rgba(20,40,70,.22)}
input[type=range]::-moz-range-track{height:6px;border-radius:999px;background:var(--line)}
input[type=range]::-moz-range-progress{height:6px;border-radius:999px;background:linear-gradient(90deg,var(--accent),var(--accent-deep))}
input[type=range]::-moz-range-thumb{width:18px;height:18px;border:2px solid var(--accent);background:#fff;border-radius:50%;cursor:pointer;
  box-shadow:0 2px 6px rgba(20,40,70,.22);transition:transform .12s ease}
input[type=range]:active::-moz-range-thumb{transform:scale(1.14)}

/* ---------- color swatches ---------- */
.color-row{display:flex;align-items:center;gap:10px}
input[type=color]{-webkit-appearance:none;appearance:none;width:38px;height:30px;border:1px solid var(--line);
  border-radius:6px;background:none;padding:0;cursor:pointer}
input[type=color]::-webkit-color-swatch-wrapper{padding:3px}
input[type=color]::-webkit-color-swatch{border:none;border-radius:4px}
.sw-custom{position:relative;overflow:hidden;display:flex;align-items:center;justify-content:center;
  background:conic-gradient(from 0deg,#ff5470,#ffd166,#06d6a0,#118ab2,#9b5de5,#ff5470)}
.sw-custom input[type=color]{position:absolute;inset:0;width:100%;height:100%;opacity:0;border:none;cursor:pointer}
.sw-plus{position:relative;color:#fff;display:flex;pointer-events:none}
.sw-plus svg{width:14px;height:14px;filter:drop-shadow(0 1px 2px rgba(0,0,0,.5))}
.swatches{display:flex;gap:6px;flex-wrap:wrap}
.sw{width:24px;height:24px;border-radius:6px;border:1px solid rgba(20,40,70,.18);cursor:pointer;padding:0;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.4);transition:.12s}
.sw:hover{transform:scale(1.12);border-color:var(--accent)}

/* ---------- buttons ---------- */
.btns{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin-top:14px}
.btns .wide{grid-column:1/-1}
button.act{font-family:"Zen Kaku Gothic New",sans-serif;font-size:13px;padding:11px 10px;border-radius:9px;
  border:1px solid var(--line);background:var(--panel);color:var(--ink);cursor:pointer;transition:.15s;letter-spacing:.02em;
  display:inline-flex;align-items:center;justify-content:center;gap:7px;box-shadow:0 1px 2px rgba(20,40,70,.04)}
button.act .ico{width:16px;height:16px}
button.act:hover{border-color:var(--accent);color:var(--accent-ink);background:#f3fafe}
button.primary{grid-column:1/-1;background:var(--accent);color:#fff;
  border-color:var(--accent);font-weight:700;box-shadow:0 8px 18px -8px rgba(47,155,214,.7)}
button.primary:hover{filter:brightness(1.06);background:var(--accent);color:#fff}
button.act.subtle{color:var(--ink-dim);border-style:dashed;background:var(--panel)}
button.act.subtle:hover{color:var(--accent-ink);border-style:solid;border-color:var(--accent);background:#f3fafe}
button.act:disabled{opacity:.45;cursor:not-allowed}
button.act:disabled:hover{border-color:var(--line);color:#fff;background:var(--accent);filter:none}
.hidden-input{display:none}

/* =========================================================
   SEO / コンテンツエリア
   ========================================================= */
.content{position:relative;z-index:1;max-width:880px;margin:46px auto 0;padding:34px 30px 26px;
  border:1px solid var(--line);border-radius:14px;background:var(--panel);box-shadow:var(--shadow);
  color:#42526b;font-size:14.5px;line-height:1.9;}
@media(max-width:560px){.content{padding:26px 18px 22px}}
.content h2{color:#16222f;font-size:clamp(18px,4.4vw,22px);font-weight:700;letter-spacing:.01em;line-height:1.4;
  margin:36px 0 14px;display:flex;align-items:flex-start;gap:10px}
.content h2::before{content:"";flex:none;width:4px;height:1.1em;margin-top:.16em;border-radius:2px;
  background:linear-gradient(var(--accent),var(--accent-deep))}
.content h2:first-of-type{margin-top:0}
.content h3{color:var(--accent-deep);font-size:14px;font-weight:600;margin:22px 0 8px;
  font-family:"DM Mono",monospace;letter-spacing:.02em}
.content p{margin:0 0 12px}
.content p.lead{color:#16222f;font-size:15px}
.content strong{color:#15202d;font-weight:700}
.content a{color:var(--accent-ink)}
.steps{list-style:none;padding:0;margin:0 0 14px;counter-reset:st;display:grid;gap:10px}
.steps li{counter-increment:st;position:relative;padding:12px 14px 12px 54px;border:1px solid var(--line);
  border-radius:10px;background:var(--panel-2);color:var(--ink)}
.steps li::before{content:counter(st);position:absolute;left:13px;top:50%;transform:translateY(-50%);
  width:28px;height:28px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-family:"DM Mono",monospace;font-size:13px;color:#fff;background:var(--accent);font-weight:700}
.steps li b{color:var(--accent-ink);font-weight:600}
.feat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin:6px 0 10px}
.feat{border:1px solid var(--line);border-radius:10px;padding:14px 14px 14px 14px;background:var(--panel-2);
  display:flex;gap:11px}
.feat .fico{flex:none;width:34px;height:34px;border-radius:9px;display:flex;align-items:center;justify-content:center;
  background:#e7f4fb;color:var(--accent-deep)}
.feat .fico svg{width:18px;height:18px}
.feat b{display:block;color:var(--ink);font-size:14px;margin-bottom:4px}
.feat span{font-size:13px;line-height:1.7;color:#5d6b7e}
@media(max-width:560px){.feat-grid{grid-template-columns:1fr}}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin:4px 0 10px;padding:0;list-style:none}
.tags li{font-size:12.5px;color:var(--accent-ink);border:1px solid var(--line);border-radius:999px;
  padding:5px 12px;background:var(--panel-2)}
.uses{margin:0 0 14px;padding-left:1.25em}
.uses li{margin:0 0 7px}
.content details{border:1px solid var(--line);border-radius:10px;background:var(--panel-2);margin:0 0 10px;overflow:hidden}
.content summary{cursor:pointer;padding:13px 44px 13px 16px;color:var(--ink);font-weight:500;
  list-style:none;position:relative}
.content summary::-webkit-details-marker{display:none}
.content summary::after{content:"+";position:absolute;right:16px;top:50%;transform:translateY(-50%);
  color:var(--accent);font-family:"DM Mono",monospace;font-size:18px;transition:.2s}
.content details[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.content details p{margin:0;padding:0 16px 14px;font-size:13.5px;color:#5d6b7e}

/* ---------- サイトフッター（コンテナ外） ---------- */
.site-foot{margin:34px auto 0;max-width:880px;text-align:center;padding:6px 16px}
.site-foot .foot-tag{font-size:12.5px;color:#6a7a8c;margin:0 0 12px}
.site-foot .foot-links{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:10px;
  font-size:13px}
.site-foot .foot-links a{color:var(--accent-ink);text-decoration:none;padding:3px 4px;border-radius:5px;
  transition:.15s}
.site-foot .foot-links a:hover{color:var(--accent-deep);text-decoration:underline}
.site-foot .foot-links .sep{color:#c2ccd8;font-size:12px}

/* =========================================================
   保存モーダル
   ========================================================= */
.modal{position:fixed;inset:0;z-index:50;display:flex;align-items:center;justify-content:center;padding:18px;
  background:rgba(18,30,46,.55);backdrop-filter:blur(5px);
  opacity:0;visibility:hidden;pointer-events:none;transition:opacity .3s ease,visibility .3s}
.modal.show{opacity:1;visibility:visible;pointer-events:auto}
.modal-box{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:14px;
  max-width:94vw;max-height:90vh;display:flex;flex-direction:column;gap:11px;box-shadow:0 30px 70px -20px rgba(15,30,50,.55);
  transform:scale(.94) translateY(10px);opacity:.6;transition:transform .32s cubic-bezier(.2,.9,.3,1),opacity .32s ease}
.modal.show .modal-box{transform:none;opacity:1}
.modal-head{display:flex;align-items:center;justify-content:space-between;
  font-family:"DM Mono",monospace;font-size:12px;letter-spacing:.04em;color:var(--accent-deep)}
.modal-head button{background:none;border:1px solid var(--line);color:var(--ink);border-radius:8px;
  width:32px;height:32px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center}
.modal-head button svg{width:16px;height:16px}
.modal-head button:hover{border-color:var(--accent);color:var(--accent-ink)}
.modal-box img{max-width:100%;max-height:62vh;border-radius:8px;object-fit:contain;display:block;
  border:1px solid var(--line)}
.modal-tip{font-size:12.5px;color:var(--ink-dim);text-align:center;line-height:1.6}