:root {
  --bg: #f3f6f4;
  --panel: #ffffff;
  --line: #e5ece8;
  --text: #1b2721;
  --muted: #7b8b82;
  --green: #16a34a;
  --green-soft: #e8f8ee;
  --red: #e5484d;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(900px 500px at 50% -10%, #e6f7ec 0%, var(--bg) 60%);
  color: var(--text);
  font: 14px/1.55 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: 420px; margin: 0 auto; padding: 40px 18px 28px; }

.brand { display: flex; align-items: center; gap: 10px; margin-bottom: 18px; }
.mark {
  width: 36px; height: 36px; border-radius: 10px;
  background: linear-gradient(135deg, #22c55e, #0f9f4a);
  color: #fff; display: flex; align-items: center; justify-content: center;
}
.brand strong { display: block; font-size: 15px; }
.brand small { color: var(--muted); font-size: 12px; letter-spacing: .08em; }

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 20px;
  box-shadow: 0 1px 2px rgba(19,35,27,.04), 0 14px 40px -28px rgba(19,35,27,.25);
  margin-bottom: 14px;
}
.card h1 { margin: 0; font-size: 19px; }
.sub { color: var(--muted); font-size: 12.5px; margin: 4px 0 16px; }

.field { display: block; margin-bottom: 12px; }
.field > span { display: block; color: var(--muted); font-size: 12px; margin-bottom: 5px; }
.row { display: flex; gap: 8px; }
.row input { flex: 1; min-width: 0; }

input {
  width: 100%;
  height: 38px;
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 0 11px;
  font: inherit;
  font-size: 14px;
  color: var(--text);
  background: #fff;
}
input:focus { outline: 2px solid var(--green-soft); border-color: #b7e4c7; }

.btn {
  width: 100%;
  height: 38px;
  border: 1px solid var(--green);
  border-radius: 9px;
  background: var(--green);
  color: #fff;
  font: inherit;
  font-size: 14px;
  cursor: pointer;
  margin-top: 4px;
}
.btn:hover { background: #128a3f; }
.btn:disabled { opacity: .55; cursor: not-allowed; }
.btn.ghost {
  width: auto;
  flex: 0 0 auto;
  padding: 0 12px;
  background: #fff;
  color: #41524a;
  border-color: var(--line);
  margin: 0;
  white-space: nowrap;
}
.btn.ghost:hover { border-color: #b7e4c7; color: var(--green); background: #f8fbf9; }

.status { min-height: 20px; margin: 10px 0 0; font-size: 13px; color: var(--muted); }
.status.err { color: var(--red); }
.status.ok { color: var(--green); }

.hint { color: var(--muted); font-size: 11.5px; margin: 12px 0 0; }

.contributor { padding: 16px 20px; }
.linkbtn {
  border: 0;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 13px;
  padding: 0;
  cursor: pointer;
  text-decoration: underline;
}
.linkbtn:hover { color: var(--green); }
.contributor .sub { margin-top: 12px; }
.hidden { display: none; }

.foot { text-align: center; font-size: 12.5px; color: var(--muted); margin-top: 6px; }
a { color: var(--green); text-decoration: none; }
a:hover { text-decoration: underline; }