/* ===================== UptimeSight 深色主题 ===================== */
:root {
  --bg: #0b1220;
  --bg-soft: #0e1626;
  --card: #121a2b;
  --card-hover: #16203a;
  --border: #1e293b;
  --border-strong: #2b3a55;
  --text: #e2e8f0;
  --muted: #8b98ad;
  --faint: #5c6b82;
  --green: #22c55e;
  --green-dim: rgba(34, 197, 94, 0.16);
  --red: #ef4444;
  --red-dim: rgba(239, 68, 68, 0.16);
  --amber: #f59e0b;
  --blue: #38bdf8;
  --radius: 12px;
}

* { box-sizing: border-box; }

/* 防止组件自身的 display 样式覆盖 hidden 属性 */
[hidden] { display: none !important; }

html, body {
  margin: 0;
  padding: 0;
  background:
    radial-gradient(1200px 500px at 80% -10%, rgba(56, 189, 248, 0.07), transparent 60%),
    radial-gradient(900px 400px at 10% 110%, rgba(34, 197, 94, 0.05), transparent 60%),
    var(--bg);
  color: var(--text);
  font-family: "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  min-height: 100vh;
}

a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 20px 24px 48px;
}

/* ---------------- 顶栏 ---------------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  background: rgba(11, 18, 32, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.brand { display: flex; align-items: center; gap: 12px; }
.brand h1 {
  font-size: 20px;
  margin: 0;
  letter-spacing: 0.5px;
  background: linear-gradient(90deg, #7dd3fc, #22c55e);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.brand-dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 10px var(--green);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.45; }
}

.topbar-right { display: flex; align-items: center; gap: 18px; }
.clock { font-variant-numeric: tabular-nums; color: var(--muted); font-size: 14px; }
.admin-link {
  color: var(--faint);
  font-size: 13px;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 4px 12px;
  transition: all 0.15s;
}
.admin-link:hover { color: var(--text); border-color: var(--border-strong); text-decoration: none; }

/* ---------------- 徽章 ---------------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 999px;
  white-space: nowrap;
}
.badge::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
.badge.up    { color: var(--green); background: var(--green-dim); }
.badge.down  { color: var(--red); background: var(--red-dim); }
.badge.warn  { color: var(--amber); background: rgba(245, 158, 11, 0.14); }
.badge.neutral { color: var(--muted); background: rgba(139, 152, 173, 0.12); }

/* ---------------- 统计卡片 ---------------- */
.stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 14px;
  margin: 20px 0 28px;
}
.stat-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
}
.stat-label { font-size: 13px; color: var(--muted); margin-bottom: 8px; }
.stat-value { font-size: 30px; font-weight: 700; font-variant-numeric: tabular-nums; }
.stat-value .stat-sub { font-size: 15px; color: var(--faint); font-weight: 400; }
#stat-down { color: var(--red); }

/* ---------------- 区块 ---------------- */
.section { margin-bottom: 32px; }
.section-title {
  font-size: 16px;
  margin: 0 0 14px;
  display: flex;
  align-items: baseline;
  gap: 10px;
}
.section-sub { font-size: 12px; color: var(--faint); font-weight: 400; }
.empty {
  padding: 32px;
  text-align: center;
  color: var(--muted);
  background: var(--card);
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius);
}

/* ---------------- 监控卡片 ---------------- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(330px, 1fr));
  gap: 14px;
}
.m-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px 14px;
  transition: border-color 0.15s, background 0.15s;
}
.m-card:hover { border-color: var(--border-strong); background: var(--card-hover); }
.m-card.is-down { border-color: rgba(239, 68, 68, 0.4); }

.m-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 10px; }
.m-name {
  font-size: 15px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.m-url {
  display: block;
  font-size: 12px;
  color: var(--faint);
  margin-top: 3px;
  max-width: 230px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.m-rt { text-align: right; white-space: nowrap; }
.m-rt b { font-size: 22px; font-weight: 700; font-variant-numeric: tabular-nums; }
.m-rt span { font-size: 12px; color: var(--faint); }
.m-rt .m-code { display: block; font-size: 11px; color: var(--faint); margin-top: 2px; }

.m-spark { width: 100%; height: 46px; margin: 10px 0 6px; display: block; }

.m-bars { display: flex; gap: 3px; align-items: flex-end; height: 26px; }
.m-bars span {
  flex: 1;
  min-width: 3px;
  border-radius: 2px;
  background: var(--green);
  cursor: default;
  transition: opacity 0.15s;
}
.m-bars span:hover { opacity: 0.7; }
.m-bars span.fail { background: var(--red); }
.m-bars span.none { background: #26324a; }

.m-foot {
  display: flex;
  justify-content: space-between;
  margin-top: 10px;
  font-size: 12px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

/* ---------------- 服务器指标 ---------------- */
.sys-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}
.sys-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
}
.sys-card-wide { grid-column: span 2; }
.sys-card-disk { grid-column: span 2; }
.sys-card-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 12px;
}
.sys-value { font-size: 13px; color: var(--muted); font-weight: 400; }
.sys-value b { color: var(--text); font-size: 18px; font-variant-numeric: tabular-nums; }
.sys-note { font-size: 12px; color: var(--faint); margin-top: 8px; }

.meter {
  height: 10px;
  background: #0d1524;
  border: 1px solid var(--border);
  border-radius: 999px;
  overflow: hidden;
}
.meter-fill {
  height: 100%;
  width: 0;
  border-radius: 999px;
  background: linear-gradient(90deg, #16a34a, #22c55e);
  transition: width 0.6s ease, background 0.6s ease;
}
.meter-fill.warn { background: linear-gradient(90deg, #d97706, #f59e0b); }
.meter-fill.crit { background: linear-gradient(90deg, #dc2626, #ef4444); }

.core-grid {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 6px;
  margin-top: 12px;
}
.core-grid .core { text-align: center; }
.core-grid .core-bar {
  height: 34px;
  background: #0d1524;
  border: 1px solid var(--border);
  border-radius: 4px;
  position: relative;
  overflow: hidden;
}
.core-grid .core-fill {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  background: linear-gradient(180deg, #34d399, #059669);
  transition: height 0.6s ease;
}
.core-grid .core-label { font-size: 10px; color: var(--faint); margin-top: 3px; }

.disk-row { margin-bottom: 12px; }
.disk-row:last-child { margin-bottom: 0; }
.disk-head {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  margin-bottom: 6px;
  font-variant-numeric: tabular-nums;
}
.disk-head .mount { color: var(--text); font-weight: 600; }
.disk-head .detail { color: var(--faint); font-size: 12px; }

#net-chart { width: 100%; height: 120px; display: block; }
.net-now { display: flex; gap: 14px; }
.net-up b, .net-down b { font-size: 15px; }
.net-up { color: #34d399; }
.net-down { color: #7dd3fc; }

.footer {
  text-align: center;
  color: var(--faint);
  font-size: 12px;
  padding: 24px 0 32px;
}

/* ---------------- 远程服务器卡片 ---------------- */
.sys-card-server { grid-column: span 1; }
.server-name { font-size: 15px; font-weight: 600; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.server-last { font-size: 12px; color: var(--faint); }
.server-meta {
  font-size: 12px;
  color: var(--faint);
  margin: -4px 0 12px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.srv-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  margin: 10px 0 6px;
}
.srv-label { color: var(--muted); }
.srv-foot {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}
.net-chart { width: 100%; height: 80px; display: block; margin-top: 8px; }
.core-extra { font-size: 10px; color: var(--faint); align-self: center; }

/* ---------------- 管理后台 ---------------- */
.panel { max-width: 1000px; margin: 0 auto; padding: 28px 24px 60px; }
.panel-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 22px;
  flex-wrap: wrap;
  gap: 12px;
}
.panel-head h1 { font-size: 22px; margin: 0; }
.panel-actions { display: flex; gap: 10px; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--border-strong);
  background: var(--bg-soft);
  color: var(--text);
  font-size: 13px;
  font-family: inherit;
  padding: 7px 14px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.15s;
}
.btn:hover { border-color: #3d517a; background: #16203a; }
.btn-primary {
  background: linear-gradient(135deg, #16a34a, #22c55e);
  border-color: transparent;
  color: #05230f;
  font-weight: 600;
}
.btn-primary:hover { filter: brightness(1.1); background: linear-gradient(135deg, #16a34a, #22c55e); }
.btn-danger { color: #fca5a5; border-color: rgba(239, 68, 68, 0.35); }
.btn-danger:hover { background: rgba(239, 68, 68, 0.12); border-color: var(--red); }
.btn-sm { padding: 4px 10px; font-size: 12px; border-radius: 6px; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* 表格 */
.table-wrap {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: auto;
}
table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
th, td { text-align: left; padding: 11px 16px; white-space: nowrap; }
thead th {
  color: var(--muted);
  font-weight: 600;
  font-size: 12px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-soft);
}
tbody tr { border-bottom: 1px solid rgba(30, 41, 59, 0.55); }
tbody tr:last-child { border-bottom: none; }
tbody tr:hover { background: var(--card-hover); }
td .url-cell {
  display: block;
  max-width: 300px;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--faint);
  font-size: 12px;
}
td .name-cell { font-weight: 600; }
.row-actions { display: flex; gap: 6px; }

/* 弹窗 */
.modal-mask {
  position: fixed;
  inset: 0;
  background: rgba(4, 8, 16, 0.72);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 20px;
}
.modal {
  background: var(--card);
  border: 1px solid var(--border-strong);
  border-radius: 14px;
  width: 100%;
  max-width: 460px;
  padding: 24px;
  max-height: 90vh;
  overflow: auto;
}
.modal h3 { margin: 0 0 18px; font-size: 17px; }
.modal .modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 22px;
}

/* 表单 */
.form-item { margin-bottom: 14px; }
.form-item label {
  display: block;
  font-size: 12.5px;
  color: var(--muted);
  margin-bottom: 6px;
}
.form-item input[type="text"],
.form-item input[type="url"],
.form-item input[type="password"],
.form-item input[type="number"] {
  width: 100%;
  background: var(--bg-soft);
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  color: var(--text);
  font-size: 14px;
  font-family: inherit;
  padding: 9px 12px;
  outline: none;
  transition: border-color 0.15s;
}
.form-item input:focus { border-color: var(--blue); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.switch { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text); cursor: pointer; }
.switch input { accent-color: var(--green); width: 16px; height: 16px; }

.form-error {
  color: #fca5a5;
  font-size: 12.5px;
  background: var(--red-dim);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: 8px;
  padding: 8px 12px;
  margin-bottom: 12px;
  display: none;
}
.form-error.show { display: block; }
.test-result {
  font-size: 12.5px;
  border-radius: 8px;
  padding: 8px 12px;
  margin-bottom: 12px;
  display: none;
}
.test-result.show { display: block; }
.test-result.ok { color: #86efac; background: var(--green-dim); }
.test-result.fail { color: #fca5a5; background: var(--red-dim); }

/* 登录页 */
.login-wrap {
  min-height: calc(100vh - 120px);
  display: flex;
  align-items: center;
  justify-content: center;
}
.login-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 36px 34px;
  width: 100%;
  max-width: 380px;
}
.login-card h2 { margin: 0 0 6px; font-size: 20px; }
.login-card .login-sub { color: var(--faint); font-size: 13px; margin-bottom: 24px; }
.login-card .btn-primary { width: 100%; justify-content: center; padding: 10px; font-size: 14px; }

/* Toast */
#toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: #1a2740;
  border: 1px solid var(--border-strong);
  color: var(--text);
  font-size: 13.5px;
  border-radius: 10px;
  padding: 10px 20px;
  opacity: 0;
  pointer-events: none;
  transition: all 0.25s;
  z-index: 200;
  max-width: 90vw;
}
#toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
#toast.err { border-color: rgba(239, 68, 68, 0.5); color: #fca5a5; }

/* ---------------- 后台标签页 ---------------- */
.tabs { display: flex; gap: 8px; margin-bottom: 18px; }
.tab-btn {
  border: 1px solid var(--border);
  background: var(--bg-soft);
  color: var(--muted);
  font-size: 14px;
  font-family: inherit;
  padding: 8px 20px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.15s;
}
.tab-btn.active {
  color: var(--text);
  border-color: var(--green);
  background: var(--green-dim);
  font-weight: 600;
}

.install-cmd {
  background: #0a101d;
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  padding: 12px;
  font-family: Consolas, "Courier New", monospace;
  font-size: 12.5px;
  color: #86efac;
  word-break: break-all;
  white-space: pre-wrap;
  user-select: all;
}
.install-note { font-size: 12px; color: var(--faint); margin-top: 10px; line-height: 1.7; }
.key-text {
  font-family: Consolas, "Courier New", monospace;
  font-size: 12.5px;
  color: var(--blue);
  word-break: break-all;
}

/* ---------------- 响应式 ---------------- */
@media (max-width: 720px) {
  .container { padding: 14px 14px 40px; }
  .topbar { padding: 12px 14px; }
  .sys-grid { grid-template-columns: 1fr; }
  .sys-card-wide, .sys-card-disk, .sys-card-server { grid-column: span 1; }
  .core-grid { grid-template-columns: repeat(4, 1fr); }
  .form-row { grid-template-columns: 1fr; }
  .clock { display: none; }
}