:root {
  --bg: #e8edf2;
  --card: #fff;
  --ink: #1c2430;
  --muted: #5b6775;
  --line: #d5dde5;
  --accent: #1f5f8b;
  --accent-hover: #184c6f;
  --err-bg: #f8e9e8;
  --err-ink: #7a2e28;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  font-family: "Segoe UI", system-ui, sans-serif;
  background: var(--bg);
  color: var(--ink);
}

.wrap {
  max-width: 420px;
  margin: 0 auto;
  padding: 48px 16px 32px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
}

.logo {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  font-size: 15px;
  display: grid;
  place-items: center;
}

.name { font-weight: 650; letter-spacing: 0.02em; }
.sub { font-size: 12px; color: var(--muted); }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 28px 24px 22px;
  box-shadow: 0 8px 24px rgba(28, 36, 48, 0.06);
}

h1 {
  margin: 0 0 8px;
  font-size: 20px;
  font-weight: 650;
}

.lead {
  margin: 0 0 22px;
  font-size: 13px;
  line-height: 1.45;
  color: var(--muted);
}

label {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 14px;
}

input {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 6px;
  font: inherit;
  color: var(--ink);
  background: #fbfcfd;
}

input:focus {
  outline: 2px solid #b9d4e8;
  border-color: var(--accent);
}

button {
  width: 100%;
  margin-top: 6px;
  padding: 11px 14px;
  border: 0;
  border-radius: 6px;
  background: var(--accent);
  color: #fff;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

button:hover { background: var(--accent-hover); }
button:disabled { opacity: 0.65; cursor: wait; }

.status {
  margin-top: 16px;
  padding: 12px 12px 11px;
  border-radius: 6px;
  background: var(--err-bg);
  color: var(--err-ink);
  font-size: 13px;
  line-height: 1.45;
}

.status .code {
  display: block;
  margin-top: 8px;
  font-size: 11px;
  color: #9a5b55;
}

footer {
  margin-top: 18px;
  text-align: center;
  font-size: 11px;
  color: var(--muted);
}