/* site.css — ProofOfPen (paper/ink/verdigris per UX plan; single 720px breakpoint). */
:root{--paper:#FAFAF7;--ink:#1A1A18;--verdigris:#2E5E4E;--terra:#B4552D;--rule:#E8E6DF}
*{box-sizing:border-box}
body{margin:0;background:var(--paper);color:var(--ink);font:15px/1.6 system-ui,-apple-system,sans-serif}
main{max-width:760px;margin:0 auto;padding:16px 20px 90px}
.site-header nav{display:flex;gap:18px;padding:14px 20px;max-width:760px;margin:0 auto;border-bottom:1px solid var(--rule)}
.site-header a{color:var(--verdigris);text-decoration:none;font-weight:600}
.card{background:#fff;border:1px solid var(--rule);border-radius:10px;padding:16px 18px;margin:14px 0}
h1{font-size:1.35rem} h2{font-size:1.05rem}
.essay{white-space:pre-wrap;font:17px/1.7 Georgia,'Times New Roman',serif;min-height:60px}
.mono,pre{font-family:ui-monospace,'SF Mono',Menlo,monospace}
.small{font-size:13px;color:#666}
textarea,input[type=text],input:not([type]){font:16px/1.6 Georgia,serif;width:100%;padding:10px;border:1px solid var(--rule);border-radius:8px}
#editor{min-height:300px;resize:vertical}
button{font:inherit;background:var(--verdigris);color:#fff;border:0;border-radius:8px;padding:10px 16px;min-height:44px;cursor:pointer}
button.sec,button.tab{background:transparent;color:var(--verdigris);border:0;border-bottom:3px solid transparent}
button.tab.active{border-bottom-color:var(--verdigris)}
button:disabled{opacity:.5;cursor:default}
.row{display:flex;gap:10px;align-items:center;margin:10px 0;flex-wrap:wrap}
.row label{min-width:60px}
.actions{justify-content:space-between}
.status-strip{display:flex;align-items:center;gap:8px;font-size:13px;color:#555}
.dot{width:10px;height:10px;border-radius:50%;background:var(--verdigris);animation:pulse 1.6s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.3}}
.banner{padding:14px 18px;border-radius:8px;font-weight:600;margin:16px 0}
.banner.valid{background:var(--verdigris);color:#fff}
.banner.bad{background:var(--terra);color:#fff}
.warn{color:var(--terra)}
.tabs{display:flex;gap:4px;border-bottom:1px solid var(--rule);margin-bottom:12px}
.tabpane{display:flex;gap:10px;flex-wrap:wrap}
.tabpane textarea{flex:1 1 100%}
input[type=range]{width:100%}
.site-footer{text-align:center;padding:20px;color:#999;font-size:13px}
@media (max-width:720px){
  main{padding:12px 14px 130px}
  .actions{position:fixed;bottom:0;left:0;right:0;background:var(--paper);border-top:1px solid var(--rule);margin:0;padding:12px 14px;z-index:5}
  #finish{flex:1}
}

/* --- frontend refinements (capture/verify/p) --- */
.btn,.btn:visited{display:inline-block;font:inherit;font-weight:600;background:var(--verdigris);color:#fff;border:0;border-radius:8px;padding:10px 16px;min-height:44px;text-decoration:none;cursor:pointer}
button.sec,.sec{background:transparent;color:var(--ink);border:1px solid var(--rule)}
.warn-border{border-color:var(--terra);color:var(--terra)}
.dot.off{animation:none;background:#b9b6ad}
.banner.small{font-weight:400;background:#f3f1ea;color:#555}
.banner.bad.small{background:#f7e8e0;color:var(--terra)}
.burst-table{width:100%;border-collapse:collapse;font-size:13px;margin-top:8px}
.burst-table th{text-align:left;color:#666;font-weight:600;padding:4px 8px;border-bottom:1px solid var(--rule)}
.burst-table td{padding:6px 8px;border-bottom:1px solid var(--rule)}
.speedbar-wrap{background:#efede7;border-radius:999px;height:8px;min-width:80px}
.speedbar{height:100%;border-radius:999px;background:var(--verdigris)}
.speedbar.fast{background:var(--terra)}
.paste-note{color:#6b4f8a}
#toast{position:fixed;left:50%;bottom:72px;transform:translateX(-50%);background:var(--ink);color:#fff;font-weight:600;font-size:13px;padding:8px 16px;border-radius:999px;z-index:40;opacity:0;transition:opacity .2s;pointer-events:none}
#toast.show{opacity:1}
details.small{margin-top:10px} details summary{cursor:pointer;color:var(--verdigris)}
details p{color:#555;max-width:60ch}
.mono{font-family:ui-monospace,'SF Mono',Menlo,monospace}
@media (max-width:720px){
  .burst-table th:nth-child(3),.burst-table td:nth-child(3){display:none}
  #finish-card .row{flex-direction:column;align-items:stretch}
  #finish-card .btn,#finish-card button{width:100%}
}