:root {
  --asf-green: #4d7f3a;
  --asf-leaf: #78a942;
  --asf-ink: #17221a;
  --asf-muted: #60705f;
  --asf-line: #dce5d8;
  --asf-bg: #f6f8f3;
  font-family: Inter, Segoe UI, system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--asf-ink);
  background: linear-gradient(135deg, #f7faf4 0%, #eef4eb 58%, #f9fbf7 100%);
}

.auth-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 32px 16px;
}

.auth-panel {
  width: min(440px, 100%);
  padding: 32px;
  background: #fff;
  border: 1px solid var(--asf-line);
  border-radius: 8px;
  box-shadow: 0 20px 60px rgba(36, 55, 35, .12);
}

.auth-logo {
  display: block;
  width: min(260px, 100%);
  height: auto;
  margin: 0 auto 10px;
}

h1 {
  margin: 28px 0 8px;
  font-size: 30px;
}

.muted {
  margin: 0 0 24px;
  color: var(--asf-muted);
  line-height: 1.5;
}

.auth-form {
  display: grid;
  gap: 16px;
  margin-top: 20px;
}

label {
  display: grid;
  gap: 7px;
  font-weight: 700;
}

input {
  width: 100%;
  min-height: 44px;
  padding: 10px 12px;
  color: var(--asf-ink);
  border: 1px solid var(--asf-line);
  border-radius: 6px;
  background: #fbfcfa;
}

button {
  min-height: 46px;
  border: 0;
  border-radius: 6px;
  color: #fff;
  background: var(--asf-green);
  font-weight: 800;
  cursor: pointer;
}

button:hover {
  background: #3f6f2f;
}

.text-link {
  display: inline-block;
  margin-top: 18px;
  color: var(--asf-green);
  font-weight: 700;
}

.flash {
  padding: 10px 12px;
  border-radius: 6px;
  margin: 16px 0;
}

.flash-error {
  background: #fff0f0;
  color: #9d1c1c;
}

.flash-success {
  background: #edf7e8;
  color: #315f27;
}

.qr {
  display: block;
  width: 220px;
  height: 220px;
  margin: 22px auto 14px;
}

.secret {
  padding: 10px;
  text-align: center;
  font-family: Consolas, monospace;
  background: var(--asf-bg);
  border-radius: 6px;
  word-break: break-all;
}