:root {
  --bg: #f7f8fb;
  --panel: #ffffff;
  --ink: #172033;
  --muted: #647085;
  --line: #dde3ee;
  --accent: #0f766e;
  --accent-strong: #0b5f58;
  --danger: #b42318;
  font-family: Inter, "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background: var(--bg);
}

button,
input {
  font: inherit;
}

.login-shell {
  min-height: calc(100vh - 164px);
  display: grid;
  place-items: center;
  padding: 24px;
}

.login-panel {
  width: min(420px, 100%);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 28px;
  box-shadow: 0 24px 70px rgba(16, 32, 38, .12);
}

.brand {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 26px;
}

.brand-mark {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  background: #24a891;
  color: #ffffff;
  display: grid;
  place-items: center;
  font-weight: 800;
}

h1,
p {
  margin: 0;
}

h1 {
  font-size: 22px;
}

.brand p {
  margin-top: 5px;
  color: var(--muted);
}

.login-form {
  display: grid;
  gap: 16px;
}

label {
  display: grid;
  gap: 7px;
}

label span {
  color: var(--muted);
  font-size: 13px;
}

input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 11px 12px;
}

button {
  border: 0;
  border-radius: 8px;
  min-height: 42px;
  color: #ffffff;
  background: var(--accent);
  cursor: pointer;
}

button:hover {
  background: var(--accent-strong);
}

.status {
  min-height: 20px;
  color: var(--danger);
  font-size: 14px;
}