:root {
  --bg: #f4f1eb;
  --ink: #1c2430;
  --muted: #5c6672;
  --card: #fffdf8;
  --line: #d8d0c4;
  --accent: #1f5c4a;
  --accent-ink: #fff;
  --danger: #8b2e2e;
  --ok: #1f5c4a;
  --shadow: 0 10px 30px rgba(28, 36, 48, 0.06);
  --radius: 14px;
  --font: "Segoe UI", "Helvetica Neue", sans-serif;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background:
    radial-gradient(1200px 500px at 10% -10%, #e7efe9 0%, transparent 55%),
    radial-gradient(900px 400px at 100% 0%, #efe6d8 0%, transparent 50%),
    var(--bg);
  min-height: 100vh;
}
a { color: var(--accent); }
.wrap { width: min(1100px, calc(100% - 2rem)); margin: 0 auto; }
.top {
  border-bottom: 1px solid var(--line);
  background: rgba(255,253,248,0.85);
  backdrop-filter: blur(8px);
  position: sticky; top: 0; z-index: 10;
}
.top-inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: .9rem 0; }
.brand { font-weight: 700; text-decoration: none; color: var(--ink); letter-spacing: .01em; }
.nav { display: flex; gap: .5rem; align-items: center; }
.foot { padding: 2rem 0 3rem; color: var(--muted); font-size: .9rem; }

.page-head { margin: 1.5rem 0 1rem; }
h1 { margin: 0 0 .35rem; font-size: 1.7rem; }
h2 { margin: 0 0 .5rem; font-size: 1.1rem; }
.muted { color: var(--muted); }
.error { color: var(--danger); background: #f8eaea; padding: .75rem 1rem; border-radius: 10px; }
.ok { color: var(--ok); background: #e8f3ee; padding: .75rem 1rem; border-radius: 10px; }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.25rem;
  margin-bottom: 1rem;
}
.card.narrow { max-width: 420px; margin-inline: auto; margin-top: 2rem; }
.stack { display: grid; gap: .85rem; }
.grid-2 { display: grid; gap: 1rem; grid-template-columns: 1.2fr .8fr; }
@media (max-width: 800px) { .grid-2 { grid-template-columns: 1fr; } }

label { display: grid; gap: .35rem; font-size: .95rem; }
label.check {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  gap: .65rem;
  width: 100%;
}
label.check input[type="checkbox"] {
  width: 1.15rem;
  height: 1.15rem;
  min-width: 1.15rem;
  margin: .15rem 0 0;
  padding: 0;
  border: none;
  flex: 0 0 auto;
  accent-color: var(--accent);
}
label.check span,
label.check {
  text-align: left;
}
input, select, textarea, button {
  font: inherit;
}
input:not([type="checkbox"]):not([type="radio"]),
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: .65rem .75rem;
  background: #fff;
}
.row { display: flex; gap: .5rem; flex-wrap: wrap; align-items: center; }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  border: 0; border-radius: 999px;
  background: var(--accent); color: var(--accent-ink);
  padding: .65rem 1.1rem; text-decoration: none; cursor: pointer;
  font-weight: 600;
}
.btn.ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.btn.danger { background: var(--danger); }
.btn.danger.ghost { background: transparent; color: var(--danger); border-color: #e2b4b4; }

.table-wrap { overflow: auto; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; }
th, td { padding: .75rem .9rem; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { font-size: .8rem; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); }

.pill {
  display: inline-block; padding: .2rem .55rem; border-radius: 999px;
  font-size: .8rem; background: #eee; text-transform: uppercase;
}
.status-draft { background: #ece7df; }
.status-sent { background: #dceaf8; }
.status-signed { background: #d9efe4; }
.status-expired, .status-cancelled { background: #f3dede; }

.kv { list-style: none; padding: 0; margin: 0; display: grid; gap: .35rem; }
.kv li { display: flex; justify-content: space-between; gap: 1rem; border-bottom: 1px dashed var(--line); padding: .3rem 0; }
.kv span { color: var(--muted); }

.pdf-frame {
  width: 100%;
  height: min(70vh, 720px);
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
}
.sig-wrap {
  border: 1px dashed var(--line);
  border-radius: 12px;
  background: #fff;
  overflow: hidden;
  touch-action: none;
}
#sig-pad { width: 100%; height: 200px; display: block; }