:root{
  --font-sans:system-ui,-apple-system,"Segoe UI","Hiragino Kaku Gothic ProN","Yu Gothic UI","Yu Gothic","Meiryo",sans-serif;
  --font-serif:"Hiragino Mincho ProN","Yu Mincho","YuMincho","Noto Serif JP",serif;
  --paper:#f7f4ec;
  --paper-2:#fffdf8;
  --ink:#20242e;
  --ink-soft:#5b6070;
  --line:#d9d2c2;
  --line-strong:#26303f;
  --indigo:#1b3350;
  --indigo-2:#2b4a6f;
  --gold:#b8893f;
  --danger:#a64a3c;
  --shadow:0 10px 30px rgba(31,36,48,.10), 0 2px 6px rgba(31,36,48,.06);
  --radius:14px;

  /* 8テーマの色（和の落ち着いた色味） */
  --h0:#45688e; --l0:#e9eef4;
  --h1:#4f8a76; --l1:#e8f2ed;
  --h2:#b07d3f; --l2:#f6efe1;
  --h3:#9a5566; --l3:#f3e9ec;
  --h4:#6a5a9a; --l4:#edeaf3;
  --h5:#3f8a99; --l5:#e6f1f3;
  --h6:#8a7a3f; --l6:#f1efe1;
  --h7:#a85a44; --l7:#f4e8e3;
}

*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  font-family:var(--font-sans);
  color:var(--ink);
  background:
    radial-gradient(1200px 600px at 80% -10%, #fbf8f0 0%, transparent 60%),
    radial-gradient(1000px 500px at -10% 110%, #f1ece0 0%, transparent 55%),
    var(--paper);
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
}

/* ===== ヘッダー ===== */
.topbar{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px clamp(16px,4vw,40px);
  border-bottom:1px solid var(--line);
  background:rgba(255,253,248,.7);
  backdrop-filter:blur(6px);
  position:sticky;top:0;z-index:20;
}
.brand{display:flex;align-items:center;gap:14px;}
.brand-mark{
  font-family:var(--font-serif);font-weight:700;
  width:46px;height:46px;flex:0 0 46px;display:grid;place-items:center;
  color:#fff;font-size:26px;border-radius:12px;
  background:linear-gradient(145deg,var(--indigo-2),var(--indigo));
  box-shadow:var(--shadow);
}
.brand-text h1{font-family:var(--font-serif);font-size:21px;margin:0;letter-spacing:.04em;}
.brand-text p{margin:2px 0 0;font-size:12.5px;color:var(--ink-soft);}
.topbar-actions{display:flex;gap:8px;}
.ghost{
  font:inherit;font-size:13.5px;color:var(--ink);text-decoration:none;
  border:1px solid var(--line);background:var(--paper-2);
  padding:9px 14px;border-radius:10px;cursor:pointer;transition:.15s;
}
.ghost:hover{border-color:var(--indigo-2);color:var(--indigo);}

/* ===== レイアウト ===== */
.layout{
  max-width:980px;margin:0 auto;padding:clamp(18px,3vw,30px) clamp(14px,4vw,24px) 60px;
  display:flex;flex-direction:column;gap:22px;
}

/* ===== 入力パネル ===== */
.panel{
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px clamp(16px,3vw,24px);box-shadow:var(--shadow);
}
.field{display:block;}
.field-label{display:block;font-size:13.5px;font-weight:700;margin-bottom:8px;color:var(--ink);}
#center-input{
  width:100%;font:inherit;font-size:16px;line-height:1.6;resize:vertical;
  border:1.5px solid var(--line);border-radius:10px;padding:12px 14px;background:#fff;
  transition:border-color .15s, box-shadow .15s;
}
#center-input:focus{outline:none;border-color:var(--indigo-2);box-shadow:0 0 0 3px rgba(43,74,111,.12);}
.panel-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:14px;}
.primary{
  font:inherit;font-weight:700;font-size:15px;color:#fff;cursor:pointer;
  display:inline-flex;align-items:center;gap:9px;
  background:linear-gradient(145deg,var(--indigo-2),var(--indigo));
  border:none;border-radius:11px;padding:13px 22px;box-shadow:var(--shadow);
  transition:transform .12s, filter .15s;
}
.primary:hover{filter:brightness(1.08);}
.primary:active{transform:translateY(1px);}
.primary:disabled{filter:grayscale(.4) brightness(.95);cursor:wait;opacity:.8;}
.btn-icon{color:var(--gold);font-size:17px;}
.hint{font-size:12.5px;color:var(--ink-soft);}

/* ===== ボード ===== */
.board-wrap{
  position:relative;
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius);
  padding:clamp(14px,3vw,22px);box-shadow:var(--shadow);
}
.board-toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:16px;}
.chart-title-wrap{flex:1 1 240px;min-width:200px;}
#chart-title{
  width:100%;font:inherit;font-size:15px;font-weight:700;color:var(--ink);
  border:none;border-bottom:1.5px dashed var(--line);background:transparent;padding:6px 2px;
}
#chart-title:focus{outline:none;border-bottom-color:var(--indigo-2);}
.tool-buttons{display:flex;gap:7px;flex-wrap:wrap;}
.tool{
  font:inherit;font-size:13px;color:var(--ink);cursor:pointer;
  border:1px solid var(--line);background:var(--paper-2);border-radius:9px;padding:9px 13px;transition:.15s;
}
.tool:hover{border-color:var(--indigo-2);color:var(--indigo);background:#fff;}
.tool:disabled{opacity:.45;cursor:not-allowed;}
.tool.danger:hover{border-color:var(--danger);color:var(--danger);}

/* 9×9 グリッド */
.board{
  display:grid;grid-template-columns:repeat(9,1fr);
  border:2.5px solid var(--line-strong);border-radius:6px;overflow:hidden;
  background:#fff;aspect-ratio:1/1;
}
.cell{
  position:relative;border-right:1px solid var(--line);border-bottom:1px solid var(--line);
  min-width:0;padding:5px 4px;display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:clamp(7.5px,1.45vw,12.5px);line-height:1.25;overflow:hidden;cursor:text;
  word-break:break-word;transition:background .15s;
}
.cell:nth-child(9n){border-right:none;}
.cell:nth-child(n+73){border-bottom:none;}
/* 3×3 ブロックの太い区切り */
.cell.sep-right{border-right:2.5px solid var(--line-strong);}
.cell.sep-bottom{border-bottom:2.5px solid var(--line-strong);}

.cell:empty::before{content:attr(data-ph);color:#b9b2a2;font-size:.92em;}
.cell:focus{outline:none;background:#fffbe9;box-shadow:inset 0 0 0 2px var(--gold);z-index:3;}

/* 役割ごとの見た目 */
.cell.action{background:var(--cl,#fff);color:var(--ink);}
.cell.theme{
  background:var(--ch,var(--indigo-2));color:#fff;font-weight:700;
  font-size:clamp(8px,1.55vw,13px);letter-spacing:.01em;
}
.cell.goal{
  background:linear-gradient(150deg,var(--indigo-2),var(--indigo));color:#fff;
  font-family:var(--font-serif);font-weight:700;
  font-size:clamp(9px,1.8vw,15px);line-height:1.3;letter-spacing:.02em;padding:6px;
}
.cell.theme:empty::before,.cell.goal:empty::before{color:rgba(255,255,255,.7);}

/* テーマ再生成ボタン */
.regen{
  position:absolute;top:2px;right:2px;width:18px;height:18px;border-radius:50%;
  border:none;background:rgba(255,255,255,.85);color:var(--ink);
  font-size:12px;line-height:1;cursor:pointer;display:none;align-items:center;justify-content:center;
  box-shadow:0 1px 3px rgba(0,0,0,.25);z-index:4;padding:0;
}
.cell.theme:hover .regen,.cell.theme:focus-within .regen{display:flex;}
.regen:hover{background:#fff;transform:rotate(90deg);transition:transform .2s;}

.board-foot{font-size:12px;color:var(--ink-soft);text-align:center;margin:14px 0 0;}
.mini-regen{display:inline-grid;place-items:center;width:16px;height:16px;border-radius:50%;
  background:var(--indigo-2);color:#fff;font-size:10px;vertical-align:middle;}

/* ===== オーバーレイ ===== */
.overlay{position:fixed;inset:0;background:rgba(27,36,46,.42);backdrop-filter:blur(2px);
  display:grid;place-items:center;z-index:50;}
.overlay-card{background:var(--paper-2);padding:26px 34px;border-radius:16px;box-shadow:var(--shadow);
  display:flex;flex-direction:column;align-items:center;gap:14px;}
.overlay-card p{margin:0;font-size:14px;color:var(--ink);font-weight:500;}
.spinner{width:38px;height:38px;border-radius:50%;border:3.5px solid #e4ddcc;border-top-color:var(--indigo-2);
  animation:spin .9s linear infinite;}
@keyframes spin{to{transform:rotate(360deg);}}

/* ===== モーダル ===== */
.modal{position:fixed;inset:0;background:rgba(27,36,46,.45);display:grid;place-items:center;z-index:60;padding:16px;}
.modal-card{background:var(--paper-2);border-radius:16px;box-shadow:var(--shadow);width:min(520px,100%);
  max-height:82vh;display:flex;flex-direction:column;overflow:hidden;}
.modal-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--line);}
.modal-head h2{margin:0;font-size:16px;font-family:var(--font-serif);}
.modal-close{border:none;background:none;font-size:24px;line-height:1;cursor:pointer;color:var(--ink-soft);}
.modal-body{padding:14px 20px 20px;overflow:auto;}

.share-box{display:flex;gap:8px;margin:6px 0 4px;}
.share-box input{flex:1;font:inherit;font-size:13px;padding:10px;border:1px solid var(--line);border-radius:9px;background:#fff;}
.share-box button{white-space:nowrap;}

.mine-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px;}
.mine-item{display:flex;align-items:center;gap:10px;border:1px solid var(--line);border-radius:11px;padding:11px 13px;background:#fff;}
.mine-item .mi-main{flex:1;min-width:0;cursor:pointer;}
.mine-item .mi-title{font-weight:700;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.mine-item .mi-date{font-size:11.5px;color:var(--ink-soft);margin-top:2px;}
.mine-item .mi-del{border:none;background:none;color:var(--ink-soft);cursor:pointer;font-size:13px;padding:6px;border-radius:8px;}
.mine-item .mi-del:hover{color:var(--danger);background:#faf0ee;}
.mine-empty{font-size:13.5px;color:var(--ink-soft);text-align:center;padding:24px 0;}

/* ===== トースト ===== */
.toast{position:fixed;left:50%;bottom:28px;transform:translateX(-50%);
  background:var(--ink);color:#fff;font-size:13.5px;padding:11px 18px;border-radius:11px;
  box-shadow:var(--shadow);z-index:80;animation:toastin .2s ease;}
@keyframes toastin{from{opacity:0;transform:translate(-50%,8px);}to{opacity:1;transform:translate(-50%,0);}}

.sitefoot{text-align:center;font-size:12px;color:var(--ink-soft);padding:18px;border-top:1px solid var(--line);}
.sitefoot .dot{margin:0 8px;color:var(--line);}

/* 生成アニメ */
.cell.flip{animation:flip .5s ease both;}
@keyframes flip{0%{transform:rotateX(80deg);opacity:0;}100%{transform:rotateX(0);opacity:1;}}

/* ===== レスポンシブ ===== */
@media (max-width:560px){
  .brand-text p{display:none;}
  .board-foot{font-size:11px;}
}

/* ===== 印刷 ===== */
@media print{
  @page{size:landscape;margin:10mm;}
  .topbar,.panel,.board-toolbar,.board-foot,.sitefoot,.overlay,.modal,.toast,.regen{display:none !important;}
  body{background:#fff;}
  .layout{padding:0;max-width:none;}
  .board-wrap{border:none;box-shadow:none;padding:0;}
  .board{width:100%;max-width:240mm;margin:0 auto;}
  .cell.goal,.cell.theme{ -webkit-print-color-adjust:exact;print-color-adjust:exact;}
  .cell{ -webkit-print-color-adjust:exact;print-color-adjust:exact;}
}

/* 画像書き出し中はボタン類を隠す */
body.exporting .regen{display:none !important;}

/* ===== 生成中アニメーション（中心から波打つ） ===== */
.board.generating{pointer-events:none;}
.board.generating .cell{animation:cellPulse 1.5s ease-in-out infinite;animation-delay:var(--rd,0s);}
@keyframes cellPulse{
  0%,100%{box-shadow:inset 0 0 0 0 rgba(184,137,63,0);}
  50%{box-shadow:inset 0 0 16px 1px rgba(184,137,63,.5);background-color:#fff7e4;}
}
.gen-pill{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);z-index:6;pointer-events:none;
  background:rgba(255,253,248,.95);border:1px solid var(--line);border-radius:16px;
  padding:18px 26px;display:flex;flex-direction:column;align-items:center;gap:11px;box-shadow:var(--shadow);
}
.gen-pill .gp-mark{font-family:var(--font-serif);font-size:32px;color:var(--indigo);animation:gpFloat 1.7s ease-in-out infinite;}
@keyframes gpFloat{0%,100%{transform:translateY(0);opacity:.85;}50%{transform:translateY(-6px);opacity:1;}}
.gen-pill .gp-text{font-size:13.5px;font-weight:700;color:var(--ink);}
.gen-pill .gp-dots{display:flex;gap:5px;}
.gen-pill .gp-dots i{width:7px;height:7px;border-radius:50%;background:var(--indigo-2);display:block;animation:gpDot 1.2s ease-in-out infinite;}
.gen-pill .gp-dots i:nth-child(2){animation-delay:.18s;}
.gen-pill .gp-dots i:nth-child(3){animation-delay:.36s;}
@keyframes gpDot{0%,100%{opacity:.3;transform:scale(.8);}50%{opacity:1;transform:scale(1.2);}}

/* ===== 共有モーダル：SNSボタン ===== */
.share-lead{font-size:13.5px;color:var(--ink-soft);margin:0 0 10px;}
.share-preview{width:100%;border-radius:11px;border:1px solid var(--line);margin:0 0 12px;display:block;background:var(--indigo);min-height:120px;}
.sns-row{display:grid;grid-template-columns:repeat(2,1fr);gap:9px;margin:0 0 12px;}
.sns-btn{
  display:flex;align-items:center;justify-content:center;gap:8px;font:inherit;font-size:13.5px;font-weight:700;
  color:#fff;border:none;border-radius:11px;padding:12px;cursor:pointer;text-decoration:none;transition:filter .15s,transform .1s;
}
.sns-btn:hover{filter:brightness(1.08);}
.sns-btn:active{transform:translateY(1px);}
.sns-btn svg{width:18px;height:18px;fill:currentColor;flex:0 0 18px;}
.sns-x{background:#0f1419;}
.sns-line{background:#06c755;}
.sns-fb{background:#1877f2;}
.sns-img{background:var(--gold);}

/* ===== ティザー共有カード（OGP画像生成用・画面外） ===== */
#share-card{
  position:fixed;left:-99999px;top:0;width:1200px;height:630px;display:flex;overflow:hidden;
  background:linear-gradient(135deg,#264a78,#152843);color:#fff;font-family:var(--font-sans);
}
#share-card .sc-board{width:560px;height:630px;display:flex;align-items:center;justify-content:center;position:relative;padding:24px;flex:0 0 560px;}
#share-card .sc-grid{width:560px;height:560px;aspect-ratio:auto;box-shadow:0 18px 50px rgba(0,0,0,.45);}
#share-card .sc-grid .cell{font-size:11px;}
#share-card .sc-grid .cell:not(.center-block){opacity:.22;filter:blur(1.1px);}
#share-card .sc-grid .cell.center-block{box-shadow:inset 0 0 0 1px rgba(255,255,255,.18);}
#share-card .sc-board::after{content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(circle at 50% 50%,transparent 26%,rgba(21,40,67,.62) 74%);}
#share-card .sc-side{flex:1;padding:56px 52px;display:flex;flex-direction:column;justify-content:center;gap:15px;}
#share-card .sc-brand{font-family:var(--font-serif);font-size:27px;letter-spacing:.05em;opacity:.92;}
#share-card .sc-goal{font-family:var(--font-serif);font-size:40px;font-weight:700;line-height:1.32;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
#share-card .sc-sub{font-size:19px;line-height:1.6;opacity:.86;}
#share-card .sc-cta{margin-top:6px;font-size:21px;font-weight:700;color:#ffd9a0;}
#share-card .sc-url{font-size:18px;opacity:.72;letter-spacing:.04em;}

[hidden]{display:none!important}

/* 共有リンクの閲覧専用ビュー（?id= で開いたとき。共有チャートは絶対に変更させない） */
body.shared-view .panel{display:none;}
body.shared-view #btn-clear{display:none;}
body.shared-view .regen{display:none!important;}
body.shared-view .board-foot{display:none;}
body.shared-view .cell{cursor:default;}
.shared-note{margin:0 0 14px;padding:10px 14px;border:1px solid var(--line);background:var(--paper-2);border-radius:10px;font-size:13px;color:var(--ink-soft);display:flex;gap:12px;align-items:center;justify-content:space-between;flex-wrap:wrap;}
.shared-note a{color:var(--indigo);font-weight:700;text-decoration:none;white-space:nowrap;}
.shared-note a:hover{text-decoration:underline;}