:root{
  --bg:#f6f7fb;
  --panel:#ffffff;
  --ink:#172033;
  --muted:#687184;
  --line:#dfe5f0;
  --primary:#2563eb;
  --primary-dark:#1e40af;
  --danger:#dc2626;
  --soft:#eef4ff;
  --shadow:0 10px 30px rgba(15,23,42,.08);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Hiragino Sans","Yu Gothic",Meiryo,sans-serif;line-height:1.65}
a{color:var(--primary);text-decoration:none} a:hover{text-decoration:underline}
.topbar{position:sticky;top:0;z-index:10;background:rgba(255,255,255,.95);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:12px 24px}
.brand a{font-weight:800;color:var(--ink);font-size:18px;text-decoration:none}.nav{display:flex;gap:14px;align-items:center;flex-wrap:wrap}.nav a{font-size:14px;color:#334155}
.container{max-width:1180px;margin:0 auto;padding:24px}.hero,.story-title{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;margin-bottom:20px}.hero h1,.story-title h1{margin:0 0 6px;font-size:30px;line-height:1.25}.hero p{margin:0;color:var(--muted)}
.panel,.login-card{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:22px;box-shadow:var(--shadow);margin-bottom:20px}.panel.wide{max-width:100%}.panel-head{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:14px}.panel h1,.panel h2,.panel h3{margin-top:0}.panel h2{font-size:22px}.panel h3{font-size:16px;margin:18px 0 8px}.login-card{max-width:430px;margin:60px auto}
.stats-grid,.download-grid,.copy-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-bottom:20px}.copy-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.stat,.download-card,.copy-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px;box-shadow:var(--shadow)}.stat span,.download-card span,.copy-card span{display:block;color:var(--muted);font-size:13px}.stat strong{font-size:28px}.download-card,.copy-card{display:block;text-align:left;color:var(--ink);cursor:pointer}.download-card:hover,.copy-card:hover{border-color:#93c5fd;text-decoration:none}.primary-card{background:linear-gradient(135deg,#eff6ff,#fff)}.button-card{font:inherit;width:100%}
.grid-two{display:grid;grid-template-columns:1fr 1fr;gap:20px}.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:14px}table{width:100%;border-collapse:collapse;background:#fff}th,td{padding:12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}th{background:#f8fafc;font-size:13px;color:#475569;white-space:nowrap}td{font-size:14px}.strong{font-weight:700;color:var(--ink)}.small{font-size:12px}.muted{color:var(--muted)}.badge{display:inline-block;padding:3px 9px;border-radius:999px;background:var(--soft);color:#1d4ed8;font-size:12px;font-weight:700}.actions{display:flex;gap:8px;align-items:center}.wrap{flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--line);background:#fff;color:var(--ink);border-radius:12px;padding:9px 14px;font-weight:700;font-size:14px;cursor:pointer;text-decoration:none;white-space:nowrap}.btn:hover{text-decoration:none;border-color:#93c5fd}.btn.primary{background:var(--primary);border-color:var(--primary);color:#fff}.btn.primary:hover{background:var(--primary-dark)}.btn.ghost{background:#f8fafc}.btn.mini{font-size:12px;padding:5px 9px;border-radius:9px}.btn.danger{background:var(--danger);border-color:var(--danger);color:#fff}.back{display:inline-block;margin-bottom:6px;color:var(--muted);font-size:14px}
.form label{display:flex;flex-direction:column;gap:6px;font-weight:700}.form input,.form textarea,.form select{width:100%;border:1px solid var(--line);border-radius:12px;padding:10px 12px;font:inherit;background:#fff;color:var(--ink)}.form textarea{resize:vertical}.form.vertical{display:flex;flex-direction:column;gap:14px}.grid-form{display:grid;grid-template-columns:1fr 1fr;gap:16px}.span-2{grid-column:span 2}.form-actions{display:flex;gap:10px;margin-top:6px}.hint{font-size:12px;color:var(--muted);font-weight:400}.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono",monospace}
.text-block{background:#f8fafc;border:1px solid var(--line);border-radius:12px;padding:12px;white-space:pre-wrap;word-break:break-word;margin:0}.small-pre{max-height:260px;overflow:auto}.copy-area{width:100%;min-height:220px;border:1px solid var(--line);border-radius:14px;padding:12px;resize:vertical;background:#fbfdff;color:#111827}.copy-area.tall{min-height:360px}.meta{display:grid;grid-template-columns:140px 1fr;gap:8px 14px}.meta dt{font-weight:800;color:#475569}.meta dd{margin:0;word-break:break-word}.empty{text-align:center;padding:30px;color:var(--muted)}.danger-zone{margin:26px 0 40px;color:var(--muted)}.flash-wrap{margin-bottom:16px}.flash{padding:12px 14px;border-radius:12px;margin-bottom:10px;border:1px solid var(--line);background:#fff}.flash.success{background:#ecfdf5;border-color:#bbf7d0;color:#166534}.flash.error{background:#fef2f2;border-color:#fecaca;color:#991b1b}
@media(max-width:900px){.topbar{align-items:flex-start;flex-direction:column;gap:8px}.hero,.story-title,.panel-head{flex-direction:column}.stats-grid,.download-grid,.copy-grid,.grid-two{grid-template-columns:1fr}.grid-form{grid-template-columns:1fr}.span-2{grid-column:span 1}.container{padding:16px}.hero h1,.story-title h1{font-size:24px}.meta{grid-template-columns:1fr}.actions{width:100%}.btn{width:auto}}