:root {
  --bg: #f4efe6;
  --card: #fffaf2;
  --ink: #1f2430;
  --muted: #636a76;
  --accent: #0b6e4f;
  --accent-soft: #d6f2e9;
  --warn: #8a2d3b;
  --border: #e7dccb;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Avenir Next", "PingFang SC", "Noto Sans SC", sans-serif;
  background:
    radial-gradient(circle at 20% 0%, #fff7e8 0%, transparent 40%),
    radial-gradient(circle at 80% 100%, #e8f6ff 0%, transparent 35%),
    var(--bg);
  color: var(--ink);
}

.container {
  max-width: 860px;
  margin: 0 auto;
  padding: 16px;
  display: grid;
  gap: 12px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px;
}

h1, h2 { margin: 0 0 10px; }
h1 { font-size: 1.3rem; }
h2 { font-size: 1.05rem; }
.muted { color: var(--muted); font-size: 0.92rem; margin: 0; }

.grid {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
}

label { display: grid; gap: 6px; font-size: 0.95rem; }
input, select, textarea, button {
  font: inherit;
}
input, select, textarea {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px 10px;
  background: #fff;
}

.actions {
  margin-top: 10px;
  display: flex;
  gap: 8px;
}
.actions.wrap { flex-wrap: wrap; }

button {
  border: none;
  border-radius: 10px;
  padding: 9px 12px;
  background: var(--accent);
  color: white;
}
button.ghost {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
}

.tip-box {
  margin-top: 10px;
  padding: 10px;
  border-radius: 10px;
  background: var(--accent-soft);
  min-height: 44px;
}

.log-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}
.log-list li {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px;
  font-size: 0.92rem;
}

.lock-screen {
  position: fixed;
  inset: 0;
  background: rgba(20, 24, 30, 0.7);
  display: grid;
  place-items: center;
  z-index: 99;
}
.hidden { display: none; }

@media (max-width: 640px) {
  .actions { flex-wrap: wrap; }
  button { width: 100%; }
}