:root {
  --bg: #f3f5f4;
  --ink: #1a2420;
  --muted: #6b776f;
  --line: #dde3df;
  --card: #ffffff;
  --accent: #1f6b4f;
  --sidebar: #15241e;
  font-family: "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}

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

[hidden] { display: none !important; }

.login-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    radial-gradient(800px 400px at 15% 0%, #d5ebdf, transparent 60%),
    radial-gradient(700px 400px at 90% 10%, #d8e4f0, transparent 55%),
    var(--bg);
}

.login-card {
  width: min(100%, 380px);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 28px 24px;
  box-shadow: 0 16px 40px rgba(21, 36, 30, 0.08);
}

.login-card h1 {
  margin: 0;
  font-size: 24px;
}

.login-card > p {
  margin: 6px 0 22px;
  color: var(--muted);
}

.login-card label {
  display: block;
  margin-bottom: 14px;
}

.login-card label span {
  display: block;
  margin-bottom: 6px;
  font-size: 13px;
  color: var(--muted);
}

.login-card input {
  width: 100%;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0 12px;
  font-size: 15px;
}

.captcha-row {
  display: grid;
  grid-template-columns: 1fr 120px;
  gap: 10px;
  align-items: center;
}

.captcha-row img {
  width: 120px;
  height: 40px;
  border-radius: 8px;
  border: 1px solid var(--line);
  cursor: pointer;
  background: #f5f7f6;
}

.login-card button {
  width: 100%;
  height: 44px;
  margin-top: 6px;
  border: 0;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
}

.app {
  display: grid;
  grid-template-columns: 220px 1fr;
  min-height: 100vh;
}

.sidebar {
  background: var(--sidebar);
  color: #fff;
  padding: 24px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.brand {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 18px;
  padding: 0 8px;
}

.nav-btn {
  text-align: left;
  border: 0;
  background: transparent;
  color: rgba(255, 255, 255, 0.72);
  padding: 10px 12px;
  border-radius: 10px;
  cursor: pointer;
  font-size: 14px;
}

.nav-btn.active,
.nav-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

.logout {
  margin-top: auto;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: transparent;
  color: #fff;
  border-radius: 999px;
  height: 40px;
  cursor: pointer;
}

.content {
  padding: 24px;
}

.toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.toolbar h2 {
  margin: 0;
  font-size: 22px;
}

.toolbar-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
}

.toolbar-actions input,
.toolbar-actions select {
  height: 36px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 10px;
  font-size: 13px;
  background: #fff;
}

.toolbar-actions input[type="search"] {
  min-width: 240px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 36px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  text-decoration: none;
  font-size: 13px;
  cursor: pointer;
}

.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.btn.danger {
  background: #fff5f4;
  border-color: #f0c7c2;
  color: #b42318;
}

.table-wrap {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 1100px;
  font-size: 13px;
}

th, td {
  padding: 12px 10px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  white-space: nowrap;
}

th {
  background: #f7faf8;
  font-weight: 600;
}

.empty {
  text-align: center;
  color: var(--muted);
  padding: 36px 12px !important;
}

.pager {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-top: 16px;
}

.pager button {
  height: 34px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  cursor: pointer;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  transform: translateX(-50%);
  padding: 10px 16px;
  border-radius: 999px;
  background: rgba(21, 36, 30, 0.92);
  color: #fff;
  font-size: 14px;
  z-index: 40;
}

@media (max-width: 900px) {
  .app {
    grid-template-columns: 1fr;
  }
  .sidebar {
    flex-direction: row;
    align-items: center;
    gap: 12px;
  }
  .brand { margin: 0; }
  .logout { margin-top: 0; margin-left: auto; }
  nav { display: none; }
}