:root {
  --bg: #f6f7fb; --surface: #ffffff; --text: #0f172a; --muted: #64748b; --border: #e2e8f0;
  --primary: #1d4ed8; --primary-ink: #ffffff; --primary-soft: #dbeafe;
  --ok: #15803d; --ok-soft: #dcfce7; --err: #b91c1c; --err-soft: #fee2e2; --warn: #a16207; --warn-soft: #fef9c3;
  --radius: 10px; --shadow: 0 1px 2px rgb(15 23 42 / .06), 0 4px 16px rgb(15 23 42 / .04);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1020; --surface: #121a2e; --text: #e2e8f0; --muted: #94a3b8; --border: #23304d;
    --primary: #3b82f6; --primary-soft: #1e3a8a55; --ok: #4ade80; --ok-soft: #14532d66;
    --err: #f87171; --err-soft: #7f1d1d66; --warn: #facc15; --warn-soft: #713f1266;
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 1.6rem; margin: .2rem 0 1rem; }
h2 { font-size: 1.1rem; margin: 0 0 .8rem; }
h3 { margin: 0 0 .4rem; }
code { font-family: ui-monospace, "JetBrains Mono", Menlo, monospace; font-size: .85em; }
.wrap { word-break: break-all; }
.mono { font-family: ui-monospace, Menlo, monospace; font-size: .85rem; }
.small { font-size: .82rem; } .muted { color: var(--muted); } .strong { font-weight: 600; }
.right { text-align: right; } .center { text-align: center; } .nowrap { white-space: nowrap; }
.mt { margin-top: 1rem; } .mb0 { margin-bottom: 0; }
.err { color: var(--err); }

.topbar { display: flex; align-items: center; gap: 1.5rem; padding: .7rem 1.5rem; background: var(--surface); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 10; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: .5rem; font-weight: 700; color: var(--text); font-size: 1.05rem; }
.topbar nav { display: flex; gap: 1.1rem; flex: 1; flex-wrap: wrap; }
.topbar nav a { color: var(--text); font-weight: 500; }
.me { display: flex; gap: .8rem; align-items: center; }
.pill { background: var(--primary); color: var(--primary-ink); border-radius: 99px; padding: 0 .45rem; font-size: .75rem; }

.container { max-width: 1100px; margin: 1.5rem auto; padding: 0 1rem; }
.container.wide { max-width: 1440px; }
.foot { text-align: center; color: var(--muted); font-size: .78rem; padding: 2rem 1rem; }

.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.25rem; box-shadow: var(--shadow); }
.card.narrow { max-width: 460px; margin: 2rem auto; }
.grid2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); gap: 1rem; }
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: .75rem; }
.row { display: flex; align-items: center; gap: .5rem; } .row.between { justify-content: space-between; margin-bottom: .5rem; }
.row.wrap { flex-wrap: wrap; } .gap { gap: .75rem; }
.stack { display: flex; flex-direction: column; gap: .8rem; }
.spacer { flex: 1; }

label { display: flex; flex-direction: column; gap: .25rem; font-size: .88rem; font-weight: 500; }
label.check { flex-direction: row; align-items: center; gap: .5rem; font-weight: 400; }
input, select, textarea { font: inherit; color: var(--text); background: var(--bg); border: 1px solid var(--border); border-radius: 8px; padding: .5rem .65rem; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--primary); outline-offset: -1px; }
input[type=color] { padding: 2px; height: 2.3rem; }
input[type=checkbox] { width: 1.05rem; height: 1.05rem; }
.otp { font-size: 1.4rem; letter-spacing: .4rem; text-align: center; font-family: ui-monospace, monospace; }
hr { border: 0; border-top: 1px solid var(--border); margin: .3rem 0; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: .35rem; font: inherit; font-weight: 500; padding: .5rem .95rem; border-radius: 8px; border: 1px solid var(--border); background: var(--surface); color: var(--text); cursor: pointer; text-decoration: none !important; }
.btn:hover { border-color: var(--primary); }
.btn.primary { background: var(--primary); color: var(--primary-ink); border-color: var(--primary); }
.btn.primary:hover { filter: brightness(1.08); }
.btn.danger { color: var(--err); border-color: var(--err); background: transparent; }
.btn.small { padding: .25rem .6rem; font-size: .82rem; }
.btn.big { padding: .8rem 1rem; font-size: 1.02rem; }
.btn:disabled { opacity: .6; cursor: not-allowed; }
button.link { background: none; border: 0; color: var(--muted); cursor: pointer; font: inherit; padding: 0; }

.alert { padding: .7rem 1rem; border-radius: 8px; margin-bottom: 1rem; border: 1px solid transparent; }
.alert.ok { background: var(--ok-soft); color: var(--ok); border-color: var(--ok); }
.alert.err { background: var(--err-soft); color: var(--err); border-color: var(--err); }
.alert.warn { background: var(--warn-soft); color: var(--warn); border-color: var(--warn); }
.note { background: var(--primary-soft); border-radius: 8px; padding: .6rem .9rem; margin-bottom: 1rem; }

.table { width: 100%; border-collapse: collapse; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.table th, .table td { padding: .65rem .8rem; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top; }
.table th { font-size: .78rem; text-transform: uppercase; letter-spacing: .03em; color: var(--muted); background: var(--bg); }
.table.compact th, .table.compact td { padding: .4rem .6rem; font-size: .86rem; }
tr.inactive, .inactive { opacity: .55; }
.empty { padding: 3rem; text-align: center; color: var(--muted); border: 2px dashed var(--border); border-radius: var(--radius); }

.badge { display: inline-block; font-size: .74rem; font-weight: 600; padding: .12rem .55rem; border-radius: 99px; background: var(--bg); border: 1px solid var(--border); white-space: nowrap; }
.badge.big { font-size: .9rem; padding: .3rem .8rem; }
.badge.pending { background: var(--warn-soft); color: var(--warn); border-color: transparent; }
.badge.signed { background: var(--ok-soft); color: var(--ok); border-color: transparent; }
.badge.rejected { background: var(--err-soft); color: var(--err); border-color: transparent; }
.badge.canceled { color: var(--muted); }

.filters { display: flex; justify-content: space-between; align-items: center; gap: 1rem; margin-bottom: 1rem; flex-wrap: wrap; }
.tabs { display: flex; gap: .25rem; background: var(--surface); border: 1px solid var(--border); border-radius: 9px; padding: .2rem; }
.tabs a { padding: .3rem .8rem; border-radius: 7px; color: var(--muted); font-weight: 500; }
.tabs a.active { background: var(--primary); color: var(--primary-ink); }
.tabs a:hover { text-decoration: none; }

.drop { border: 2px dashed var(--border); border-radius: var(--radius); padding: 2rem 1rem; text-align: center; cursor: pointer; color: var(--muted); position: relative; }
.drop.over, .drop:hover { border-color: var(--primary); color: var(--text); }
.drop input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }

.kv { display: grid; grid-template-columns: max-content 1fr; gap: .3rem 1rem; margin: 0 0 1rem; }
.kv dt { color: var(--muted); } .kv dd { margin: 0; }
.plain { list-style: none; padding: 0; margin: 0 0 1rem; display: flex; flex-direction: column; gap: .4rem; }
.certitem { border: 1px solid var(--border); border-radius: 8px; padding: .8rem; margin-bottom: .75rem; }
.qr { width: 200px; height: 200px; image-rendering: pixelated; background: #fff; padding: 6px; border-radius: 8px; }
pre { white-space: pre-wrap; word-break: break-all; margin: .3rem 0; }

/* Assinatura: visualizador + painel */
.signlayout { display: grid; grid-template-columns: 1fr 380px; gap: 1rem; align-items: start; }
.signpanel { position: sticky; top: 4.5rem; }
.viewer { overflow: auto; }
.viewer-bar { display: flex; align-items: center; gap: .5rem; margin-bottom: .5rem; }
.hint { margin-bottom: .6rem; }
.canvas-wrap { position: relative; margin: 0 auto; box-shadow: 0 2px 12px rgb(0 0 0 / .18); background: #fff; cursor: crosshair; }
.canvas-wrap canvas#page { display: block; }
.stampbox { position: absolute; outline: 2px dashed var(--primary); outline-offset: 1px; cursor: move; touch-action: none; background: rgb(255 255 255 / .6); }
.stampbox canvas { display: block; width: 100%; height: 100%; pointer-events: none; }
.handle { position: absolute; right: -7px; bottom: -7px; width: 14px; height: 14px; background: var(--primary); border: 2px solid #fff; border-radius: 50%; cursor: nwse-resize; }
[hidden] { display: none !important; }

.stamplayout { display: grid; grid-template-columns: 240px 1fr 380px; gap: 1rem; align-items: start; }
.preview { background: repeating-conic-gradient(var(--bg) 0 25%, var(--surface) 0 50%) 0 0/16px 16px; padding: 1rem; border-radius: 8px; display: flex; justify-content: center; }

.sigresult { border: 1px solid var(--border); border-left: 4px solid var(--ok); border-radius: 8px; padding: 1rem; margin: 1rem 0; }
.sigresult.bad { border-left-color: var(--err); }
.checks { list-style: none; padding: 0; margin: 0 0 .8rem; }
.checks li::before { content: "✔ "; color: var(--ok); font-weight: 700; }
.checks li.bad::before { content: "✘ "; color: var(--err); }
.checks li.warn::before { content: "! "; color: var(--warn); }

@media (max-width: 1000px) {
  .signlayout, .stamplayout { grid-template-columns: 1fr; }
  .signpanel { position: static; }
  .grid3 { grid-template-columns: 1fr 1fr; }
}