/* ============================================================
   DNS 域名解析服务器 · 管理后台样式（浅色主题）
   ============================================================ */

:root {
  --bg: #f4f6fa;
  --panel: #ffffff;
  --panel-2: #fbfcfe;
  --border: #e3e8ef;
  --border-strong: #cfd7e3;
  --text: #182030;
  --text-2: #4a5567;
  --muted: #7d8798;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --accent-soft: #edf3ff;
  --ok: #15803d;
  --ok-soft: #e9f8ee;
  --warn: #b45309;
  --warn-soft: #fdf4e3;
  --err: #c62828;
  --err-soft: #fdeeee;
  --purple: #6d28d9;
  --purple-soft: #f3eeff;
  --cyan: #0e7490;
  --cyan-soft: #e6f6fa;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 1px 2px rgba(16, 24, 40, .05), 0 1px 3px rgba(16, 24, 40, .04);
  --shadow-lg: 0 12px 32px rgba(16, 24, 40, .14);
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", "Microsoft YaHei", "PingFang SC", sans-serif;
  font-size: 14px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 { margin: 0; font-weight: 650; line-height: 1.3; }
p { margin: 0; }
a { color: var(--accent); text-decoration: none; }
code, .mono { font-family: var(--mono); font-size: 12.5px; }
.muted { color: var(--muted); }
.tiny { font-size: 12px; }
.small { font-size: 12.5px; }
.nowrap { white-space: nowrap; }
.right { text-align: right; }

/* ---------- 布局 ---------- */

.app { display: flex; min-height: 100vh; }

.sidebar {
  width: 232px;
  flex: 0 0 232px;
  background: var(--panel);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 18px 18px 16px;
  border-bottom: 1px solid var(--border);
}

.brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, #2563eb, #4f8ef7);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .04em;
  display: grid;
  place-items: center;
  flex: 0 0 38px;
}

.brand-text { display: flex; flex-direction: column; min-width: 0; }
.brand-text strong { font-size: 14px; }
.brand-text span { font-size: 11px; color: var(--muted); letter-spacing: .02em; }

.nav { padding: 12px 10px; display: flex; flex-direction: column; gap: 2px; flex: 1; overflow-y: auto; }

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-2);
  cursor: pointer;
  user-select: none;
  font-size: 13.5px;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  transition: background .12s, color .12s;
}
.nav-item:hover { background: #f1f4f9; color: var(--text); }
.nav-item.active { background: var(--accent-soft); color: var(--accent); font-weight: 600; }
.nav-item svg { width: 16px; height: 16px; flex: 0 0 16px; }
.nav-item .nav-badge {
  margin-left: auto;
  font-size: 11px;
  background: #eef1f6;
  color: var(--text-2);
  padding: 1px 7px;
  border-radius: 20px;
}
.nav-item.active .nav-badge { background: #dbe7ff; color: var(--accent); }

.sidebar-foot { padding: 12px 14px 16px; border-top: 1px solid var(--border); }
.sidebar-foot .pill { margin-bottom: 6px; }
#sideAddr { word-break: break-all; }

.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }

.topbar {
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  padding: 16px 26px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 20;
}
.topbar h1 { font-size: 18px; }
.topbar p { font-size: 12.5px; margin-top: 2px; }
.topbar-actions { display: flex; align-items: center; gap: 10px; }

.content { padding: 22px 26px 60px; max-width: 1320px; width: 100%; }

/* ---------- 基础组件 ---------- */

.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 20px;
  background: #f1f4f9;
  color: var(--text-2);
  font-size: 12px;
  font-weight: 550;
  white-space: nowrap;
}
.pill .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--muted); flex: 0 0 7px; }
.pill.ok { background: var(--ok-soft); color: var(--ok); }
.pill.ok .dot { background: var(--ok); box-shadow: 0 0 0 3px rgba(21,128,61,.14); }
.pill.warn { background: var(--warn-soft); color: var(--warn); }
.pill.warn .dot { background: var(--warn); }
.pill.err { background: var(--err-soft); color: var(--err); }
.pill.err .dot { background: var(--err); }

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
}
.card-head h3 { font-size: 14.5px; }
.card-head p { font-size: 12px; color: var(--muted); margin-top: 1px; }
.card-body { padding: 18px; }
.card-body.tight { padding: 0; }

.grid { display: grid; gap: 16px; }
.grid.c2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid.c3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid.c4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid.c5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
.stack { display: flex; flex-direction: column; gap: 16px; }
.row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.spacer { flex: 1; }

@media (max-width: 1080px) {
  .grid.c4, .grid.c5 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid.c3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 720px) {
  .sidebar { display: none; }
  .grid.c2, .grid.c3, .grid.c4, .grid.c5 { grid-template-columns: 1fr; }
  .content { padding: 16px; }
  .topbar { padding: 14px 16px; }
}

/* 指标卡 */
.metric { padding: 16px 18px; }
.metric .label { font-size: 12px; color: var(--muted); display: flex; align-items: center; gap: 6px; }
.metric .value { font-size: 26px; font-weight: 680; letter-spacing: -.01em; margin-top: 6px; font-variant-numeric: tabular-nums; }
.metric .foot { font-size: 11.5px; color: var(--muted); margin-top: 4px; }
.metric.accent .value { color: var(--accent); }
.metric.ok .value { color: var(--ok); }
.metric.purple .value { color: var(--purple); }
.metric.cyan .value { color: var(--cyan); }
.metric.warn .value { color: var(--warn); }

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  background: var(--accent);
  color: #fff;
  font-size: 13px;
  font-weight: 550;
  font-family: inherit;
  cursor: pointer;
  transition: background .12s, border-color .12s, color .12s, opacity .12s;
  white-space: nowrap;
}
.btn:hover { background: var(--accent-hover); }
.btn:disabled { opacity: .55; cursor: not-allowed; }
.btn.ghost { background: var(--panel); color: var(--text-2); border-color: var(--border-strong); }
.btn.ghost:hover { background: #f5f7fb; color: var(--text); }
.btn.danger { background: var(--panel); color: var(--err); border-color: #f0c4c4; }
.btn.danger:hover { background: var(--err-soft); }
.btn.sm { padding: 4px 10px; font-size: 12px; }
.btn.icon { padding: 5px 7px; }
.btn svg { width: 14px; height: 14px; }

/* 表单 */
label.field { display: block; margin-bottom: 14px; }
label.field > .lab { display: block; font-size: 12.5px; font-weight: 600; color: var(--text-2); margin-bottom: 5px; }
label.field > .hint { display: block; font-size: 11.5px; color: var(--muted); margin-top: 4px; }

input[type="text"], input[type="number"], select, textarea {
  width: 100%;
  padding: 8px 11px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: #fff;
  color: var(--text);
  font-family: inherit;
  font-size: 13.5px;
  outline: none;
  transition: border-color .12s, box-shadow .12s;
}
input:focus, select:focus, textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, .12);
}
input::placeholder, textarea::placeholder { color: #a8b1c1; }
textarea { resize: vertical; min-height: 68px; font-family: var(--mono); font-size: 12.5px; }
.inline-input { display: flex; gap: 8px; align-items: center; }
.inline-input input { flex: 1; }

.switch { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; user-select: none; font-size: 13px; color: var(--text-2); }
.switch input { display: none; }
.switch .track {
  width: 34px; height: 20px; border-radius: 20px; background: #d5dbe5;
  position: relative; transition: background .16s; flex: 0 0 34px;
}
.switch .track::after {
  content: ""; position: absolute; top: 2px; left: 2px; width: 16px; height: 16px;
  background: #fff; border-radius: 50%; transition: transform .16s; box-shadow: 0 1px 2px rgba(0,0,0,.2);
}
.switch input:checked + .track { background: var(--accent); }
.switch input:checked + .track::after { transform: translateX(14px); }

/* 表格 */
table { width: 100%; border-collapse: collapse; }
th {
  text-align: left;
  font-size: 11.5px;
  font-weight: 650;
  color: var(--muted);
  letter-spacing: .03em;
  padding: 10px 14px;
  background: var(--panel-2);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
td {
  padding: 10px 14px;
  border-bottom: 1px solid #eef1f6;
  font-size: 13px;
  vertical-align: middle;
}
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: #fafbfe; }
.table-wrap { overflow-x: auto; }
.table-empty { padding: 34px 18px; text-align: center; color: var(--muted); font-size: 13px; }

/* 类型徽标 */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 6px;
  font-family: var(--mono);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: .02em;
  background: #eef1f6;
  color: var(--text-2);
}
.badge.A { background: #e7f0ff; color: #1d4ed8; }
.badge.AAAA { background: var(--purple-soft); color: var(--purple); }
.badge.CNAME { background: var(--cyan-soft); color: var(--cyan); }
.badge.MX { background: #fdf1e3; color: #b45309; }
.badge.TXT { background: #eef1f6; color: #475569; }
.badge.NS { background: var(--ok-soft); color: var(--ok); }
.badge.SOA { background: #f3e8ff; color: #86198f; }
.badge.SRV { background: #e8f0fe; color: #1e40af; }
.badge.CAA { background: #fde8f0; color: #a21caf; }
.badge.PTR { background: #eafaf1; color: #0f766e; }
.badge.SPF { background: #eef1f6; color: #475569; }

.rcode { font-family: var(--mono); font-size: 11.5px; font-weight: 650; padding: 2px 7px; border-radius: 5px; }
.rcode.NOERROR { background: var(--ok-soft); color: var(--ok); }
.rcode.NXDOMAIN { background: var(--warn-soft); color: var(--warn); }
.rcode.SERVFAIL, .rcode.REFUSED, .rcode.FORMERR, .rcode.NOTIMP { background: var(--err-soft); color: var(--err); }

.tag {
  font-size: 11px; padding: 1px 7px; border-radius: 20px;
  background: #eef1f6; color: var(--text-2); font-weight: 550;
}
.tag.local { background: var(--ok-soft); color: var(--ok); }
.tag.forwarded { background: var(--accent-soft); color: var(--accent); }
.tag.cache { background: var(--cyan-soft); color: var(--cyan); }
.tag.error, .tag.servfail, .tag.refused { background: var(--err-soft); color: var(--err); }
.tag.nxdomain { background: var(--warn-soft); color: var(--warn); }

/* 区域选择条 */
.zone-tabs { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.zone-tab {
  padding: 7px 14px;
  border-radius: 20px;
  border: 1px solid var(--border-strong);
  background: var(--panel);
  color: var(--text-2);
  font-size: 13px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: inherit;
  transition: all .12s;
}
.zone-tab:hover { border-color: var(--accent); color: var(--accent); }
.zone-tab.active { background: var(--accent); border-color: var(--accent); color: #fff; }
.zone-tab.active .count { background: rgba(255,255,255,.25); color: #fff; }
.zone-tab .count { font-size: 11px; background: #eef1f6; padding: 0 6px; border-radius: 10px; }
.zone-tab .off { font-size: 10.5px; opacity: .7; }

/* 模态框 */
.modal-root { position: fixed; inset: 0; z-index: 100; display: none; }
.modal-root.open { display: block; }
.modal-mask { position: absolute; inset: 0; background: rgba(15, 23, 42, .42); backdrop-filter: blur(2px); }
.modal {
  position: relative;
  background: var(--panel);
  border-radius: 14px;
  width: min(560px, calc(100vw - 32px));
  max-height: calc(100vh - 64px);
  margin: 46px auto 0;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  animation: pop .16s ease-out;
}
@keyframes pop { from { transform: translateY(-8px); opacity: 0; } to { transform: none; opacity: 1; } }
.modal-head {
  padding: 16px 20px; border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
}
.modal-head h3 { font-size: 15px; }
.modal-head .x { background: none; border: none; cursor: pointer; color: var(--muted); font-size: 20px; line-height: 1; padding: 2px 6px; border-radius: 6px; }
.modal-head .x:hover { background: #f1f4f9; color: var(--text); }
.modal-body { padding: 20px; overflow-y: auto; }
.modal-foot { padding: 14px 20px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 10px; }

/* 提示条 */
.alert {
  padding: 11px 14px; border-radius: var(--radius-sm); font-size: 12.5px;
  display: flex; gap: 9px; align-items: flex-start; line-height: 1.55;
}
.alert.info { background: var(--accent-soft); color: #1e40af; }
.alert.warn { background: var(--warn-soft); color: #92400e; }
.alert.err { background: var(--err-soft); color: #991b1b; }
.alert.ok { background: var(--ok-soft); color: #14532d; }
.alert .ico { flex: 0 0 auto; font-weight: 700; }

/* Toast */
.toast-root { position: fixed; right: 20px; bottom: 20px; z-index: 200; display: flex; flex-direction: column; gap: 10px; align-items: flex-end; }
.toast {
  background: #101828; color: #fff; padding: 10px 16px; border-radius: 10px;
  font-size: 13px; box-shadow: var(--shadow-lg); animation: slidein .18s ease-out;
  max-width: 380px;
}
.toast.ok { background: #15803d; }
.toast.err { background: #b91c1c; }
@keyframes slidein { from { transform: translateX(16px); opacity: 0; } to { transform: none; opacity: 1; } }

/* 查询结果 */
.result-head { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.answer-list { display: flex; flex-direction: column; gap: 8px; margin-top: 12px; }
.answer-item {
  display: flex; align-items: center; gap: 10px;
  background: var(--panel-2); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 9px 12px;
}
.answer-item .val { font-family: var(--mono); font-size: 12.5px; word-break: break-all; flex: 1; }
.answer-item .ttl { font-size: 11px; color: var(--muted); white-space: nowrap; }

/* 日志 */
.log-table td { font-size: 12.5px; padding: 8px 12px; }
.log-table .mono { font-size: 12px; }
.log-live { display: inline-flex; align-items: center; gap: 5px; font-size: 12px; color: var(--ok); font-weight: 550; }
.log-live i { width: 6px; height: 6px; border-radius: 50%; background: var(--ok); animation: blink 1.4s infinite; }
@keyframes blink { 0%,100% { opacity: 1; } 50% { opacity: .25; } }

/* 代码块 */
pre.code {
  background: #0f172a; color: #dbe4f0; padding: 13px 15px; border-radius: var(--radius-sm);
  font-family: var(--mono); font-size: 12.5px; line-height: 1.75; overflow-x: auto; margin: 0;
  white-space: pre;
}
pre.code .cmt { color: #7f8ea5; }
pre.code .kw { color: #7dd3fc; }
.kv { display: grid; grid-template-columns: 120px 1fr; gap: 6px 14px; font-size: 13px; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; font-family: var(--mono); font-size: 12.5px; word-break: break-all; }

/* ============================================================
   多用户：登录 / 注册遮罩
   ============================================================ */

body.auth-lock { overflow: hidden; }
body.auth-lock .app { filter: blur(3px); pointer-events: none; user-select: none; }

.auth-root {
  position: fixed; inset: 0; z-index: 900;
  background: linear-gradient(160deg, #eef2f9 0%, #e3ebf7 55%, #dfe8f5 100%);
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
}

.auth-card {
  width: min(400px, calc(100vw - 32px));
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
  padding: 30px 30px 26px;
}

.auth-brand { text-align: center; margin-bottom: 20px; }
.auth-brand .brand-mark { margin: 0 auto 12px; }
.auth-brand h2 { font-size: 19px; }
.auth-brand p { margin-top: 4px; font-size: 12.5px; }

.auth-tabs {
  display: flex; background: var(--panel-2); border: 1px solid var(--border);
  border-radius: 10px; padding: 3px; margin-bottom: 18px;
}
.auth-tab {
  flex: 1; border: 0; background: transparent; padding: 8px 0; border-radius: 8px;
  font-size: 13.5px; font-weight: 600; color: var(--text-2); cursor: pointer;
}
.auth-tab.active { background: var(--panel); color: var(--accent); box-shadow: var(--shadow); }

.auth-submit { width: 100%; margin-top: 6px; padding: 10px 0; font-size: 14.5px; }
.auth-hint { margin-top: 14px; }

.user-box { display: inline-flex; align-items: center; gap: 8px; padding: 3px 4px 3px 12px; border: 1px solid var(--border); border-radius: 999px; background: var(--panel); }
.user-name { font-size: 12.5px; font-weight: 600; color: var(--text-2); }

/* ============================================================
   多用户：用户管理 & 接入指南
   ============================================================ */

.guide-step { display: flex; gap: 14px; padding: 10px 0; }
.guide-step + .guide-step { border-top: 1px dashed var(--border); }
.step-no {
  flex: 0 0 26px; height: 26px; border-radius: 50%;
  background: var(--accent-soft); color: var(--accent);
  display: inline-flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 13px; margin-top: 2px;
}

.ns-chip {
  display: inline-flex; align-items: center; gap: 8px;
  border: 1px solid var(--border); border-radius: 8px;
  background: var(--panel-2); padding: 6px 10px;
}
.ns-chip code { font-size: 13px; font-weight: 600; }