:root {
  --bg-0: #f3f0e8;
  --bg-1: #fffaf0;
  --ink: #1c1c1c;
  --muted: #606060;
  --line: #d8d2c5;
  --card: #ffffffcc;
  --accent: #155e63;
  --accent-2: #ff7a18;
  --ok: #1f7a3f;
  --warn: #a2432a;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  min-height: 100vh;
}

.bg-grid {
  background:
    radial-gradient(circle at 15% 20%, #ffdcb8 0, transparent 32%),
    radial-gradient(circle at 88% 12%, #cce8ff 0, transparent 26%),
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 39px,
      rgba(0, 0, 0, 0.03) 40px
    ),
    linear-gradient(160deg, var(--bg-0), var(--bg-1));
  display: grid;
  place-items: center;
  padding: 24px;
}

.card {
  width: min(760px, 100%);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  backdrop-filter: blur(4px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.09);
  animation: rise 0.45s ease-out;
}

.login-card {
  max-width: 420px;
  padding: 28px;
}

.dashboard-card {
  padding: 26px;
}

h1 {
  margin: 0 0 12px;
  font-size: clamp(22px, 3vw, 34px);
  letter-spacing: 0.5px;
}

.muted {
  color: var(--muted);
  margin-bottom: 16px;
}

.error {
  color: #b00020;
  margin: 8px 0 14px;
}

label {
  font-weight: 600;
  display: block;
  margin-bottom: 6px;
}

input[type="password"],
input[type="number"],
input[type="text"] {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 15px;
  margin-bottom: 12px;
}

button {
  border: none;
  border-radius: 12px;
  padding: 10px 16px;
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  color: #fff;
  font-weight: 700;
  cursor: pointer;
}

button:hover {
  transform: translateY(-1px);
}

.ghost {
  background: #fff;
  color: var(--ink);
  border: 1px solid var(--line);
}

.header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.status {
  border: 1px dashed var(--line);
  border-radius: 12px;
  padding: 12px;
  margin: 14px 0 16px;
  display: grid;
  gap: 8px;
}

.ok {
  color: var(--ok);
  font-weight: 700;
}

.warn {
  color: var(--warn);
  font-weight: 700;
}

.switch-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 0;
}

.tip {
  color: var(--muted);
  font-size: 14px;
  margin-top: 10px;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 640px) {
  .dashboard-card,
  .login-card {
    padding: 18px;
  }
}