/* 管理后台。默认浅色，data-theme="dark" 切深色。 */

:root,
[data-theme="light"] {
  --bg: #f4f6fb;
  --side: #ffffff;
  --panel: #ffffff;
  --field: #f6f8fd;
  --border: #e6ebf6;
  --border-strong: #cfd8ea;
  --text: #1b2440;
  --text-soft: #46527a;
  --muted: #7d89a8;
  --accent: #4c6ef5;
  --accent-2: #7c5cf6;
  --accent-soft: #eef2ff;
  --ok: #0ea472;
  --ok-soft: #e6f8f1;
  --warn: #d18414;
  --warn-soft: #fff5e4;
  --danger: #e0455f;
  --danger-soft: #ffeef1;
  --shadow-sm: 0 1px 3px rgba(28, 44, 92, 0.07);
  --shadow: 0 8px 24px -10px rgba(28, 44, 92, 0.18);
  --shadow-lg: 0 26px 60px -22px rgba(28, 44, 92, 0.32);
}

[data-theme="dark"] {
  --bg: #0b1020;
  --side: #111a2f;
  --panel: #141d33;
  --field: #0e1729;
  --border: #26314f;
  --border-strong: #37456c;
  --text: #eaeffb;
  --text-soft: #b8c3de;
  --muted: #8b98b8;
  --accent: #7d9bff;
  --accent-2: #a98bff;
  --accent-soft: rgba(125, 155, 255, 0.14);
  --ok: #3ddba4;
  --ok-soft: rgba(61, 219, 164, 0.14);
  --warn: #f5b544;
  --warn-soft: rgba(245, 181, 68, 0.14);
  --danger: #ff7a8c;
  --danger-soft: rgba(255, 122, 140, 0.14);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
  --shadow: 0 10px 28px -12px rgba(0, 0, 0, 0.7);
  --shadow-lg: 0 30px 70px -26px rgba(0, 0, 0, 0.85);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; min-height: 100%; }
body {
  background: var(--bg); color: var(--text);
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Noto Sans CJK SC",
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 14px; line-height: 1.65; -webkit-font-smoothing: antialiased;
  transition: background .25s, color .25s;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* 布局 */
.layout {
  display: grid; grid-template-columns: 226px 1fr; min-height: 100vh;
  /* 侧栏 sticky + 100vh，页面比一屏长时它底下会露出空白，用背景把这一条补满 */
  background: linear-gradient(to right, var(--side) 226px, var(--bg) 226px);
}
.side {
  background: var(--side); border-right: 1px solid var(--border);
  padding: 22px 14px; position: sticky; top: 0; height: 100vh; overflow-y: auto;
}
.main svg, .side svg, .modal svg { width: 16px; height: 16px; flex-shrink: 0; }

.brand { display: flex; align-items: center; gap: 10px; padding: 0 8px 20px; }
.brand .logo {
  width: 34px; height: 34px; border-radius: 11px; flex-shrink: 0;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: grid; place-items: center; font-weight: 800; color: #fff; font-size: 15px;
  box-shadow: 0 6px 14px -6px var(--accent);
}
.brand b { font-size: 15px; font-weight: 700; letter-spacing: -.2px; }

.nav { display: flex; flex-direction: column; gap: 3px; }
.nav a {
  display: flex; align-items: center; gap: 10px; padding: 10px 12px;
  border-radius: 11px; color: var(--text-soft); font-size: 14px; font-weight: 500;
  text-decoration: none; transition: background .15s, color .15s;
}
.nav a:hover { background: var(--field); color: var(--text); text-decoration: none; }
.nav a.active { background: var(--accent-soft); color: var(--accent); font-weight: 650; }
.nav-sep { height: 1px; background: var(--border); margin: 10px 4px; }

.side-foot { margin-top: 18px; padding: 14px 12px 0; border-top: 1px solid var(--border); font-size: 12.5px; color: var(--muted); }
.theme-toggle {
  display: inline-flex; align-items: center; gap: 8px; margin-top: 12px;
  padding: 8px 12px; width: 100%; border-radius: 11px; cursor: pointer;
  background: var(--field); border: 1px solid var(--border);
  color: var(--text-soft); font-size: 13px; font-family: inherit;
  transition: background .15s;
}
.theme-toggle:hover { background: var(--accent-soft); color: var(--accent); }
[data-theme="light"] .theme-toggle .i-moon { display: block; }
[data-theme="light"] .theme-toggle .i-sun { display: none; }
[data-theme="dark"] .theme-toggle .i-moon { display: none; }
[data-theme="dark"] .theme-toggle .i-sun { display: block; }

.main { padding: 26px 30px 60px; min-width: 0; }
.page-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 22px; }
.page-head h1 { margin: 0 0 4px; font-size: 24px; font-weight: 750; letter-spacing: -.5px; }
.page-head p { margin: 0; color: var(--muted); font-size: 14px; }

/* 卡片 */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(176px, 1fr)); gap: 14px; margin-bottom: 24px; }
.card {
  background: var(--panel); border: 1px solid var(--border); border-radius: 16px;
  padding: 17px 19px; box-shadow: var(--shadow-sm);
  transition: transform .14s, box-shadow .18s;
}
.card:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.card .k { font-size: 13px; color: var(--muted); margin-bottom: 6px; }
.card .v { font-size: 29px; font-weight: 750; font-variant-numeric: tabular-nums; letter-spacing: -1px; line-height: 1.15; }
.card .s { font-size: 12.5px; color: var(--muted); margin-top: 5px; }
.card.ok .v { color: var(--ok); }
.card.warn .v { color: var(--warn); }
.card.danger .v { color: var(--danger); }

.box {
  background: var(--panel); border: 1px solid var(--border); border-radius: 16px;
  margin-bottom: 22px; overflow: hidden; box-shadow: var(--shadow-sm);
}
.box-head {
  display: flex; align-items: center; justify-content: space-between; gap: 14px; flex-wrap: wrap;
  padding: 16px 19px; border-bottom: 1px solid var(--border);
}
.box-head h2 { margin: 0; font-size: 16px; font-weight: 700; }
.box-head .sub { font-size: 12.5px; color: var(--muted); margin-top: 3px; }
.box-body { padding: 19px; }
.box-body.flush { padding: 0; }

/* 表格 */
.tbl { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.tbl th, .tbl td { padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--border); vertical-align: middle; }
.tbl th { color: var(--muted); font-weight: 600; font-size: 12.5px; white-space: nowrap; background: var(--field); }
.tbl tbody tr { transition: background .12s; }
.tbl tbody tr:hover { background: var(--field); }
.tbl tbody tr:last-child td { border-bottom: 0; }
.tbl .num { font-variant-numeric: tabular-nums; }
.tbl-scroll { overflow-x: auto; }
.empty { padding: 46px 20px; text-align: center; color: var(--muted); font-size: 14px; }

.tag { display: inline-block; padding: 4px 11px; border-radius: 999px; font-size: 12.5px; font-weight: 600; white-space: nowrap; }
.tag.ok { background: var(--ok-soft); color: var(--ok); }
.tag.warn { background: var(--warn-soft); color: var(--warn); }
.tag.err { background: var(--danger-soft); color: var(--danger); }
.tag.mute { background: var(--field); color: var(--muted); }
.tag.info { background: var(--accent-soft); color: var(--accent); }

/* 表单 */
label { font-size: 13px; color: var(--muted); display: block; margin-bottom: 6px; font-weight: 500; }
input[type=text], input[type=email], input[type=password], input[type=number], textarea, select {
  width: 100%; padding: 10px 13px; font-size: 13.5px; font-family: inherit; color: var(--text);
  background: var(--field); border: 1.5px solid transparent; border-radius: 11px;
  transition: border-color .15s, background .15s, box-shadow .15s;
}
input:focus, textarea:focus, select:focus {
  outline: none; background: var(--panel);
  border-color: var(--accent); box-shadow: 0 0 0 3.5px var(--accent-soft);
}
input::placeholder, textarea::placeholder { color: var(--muted); opacity: .85; }
textarea {
  resize: vertical; min-height: 116px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 12.5px; line-height: 1.75;
}
select { cursor: pointer; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(196px, 1fr)); gap: 15px; }
.form-row { display: flex; gap: 11px; align-items: flex-end; flex-wrap: wrap; }
.form-row > div { flex: 1 1 160px; min-width: 0; }
.check { display: inline-flex; align-items: center; gap: 8px; color: var(--text); font-size: 13.5px; cursor: pointer; font-weight: 500; }
.check input { width: auto; accent-color: var(--accent); }
input[type=checkbox] { accent-color: var(--accent); width: 15px; height: 15px; cursor: pointer; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  padding: 10px 17px; font-size: 13.5px; font-weight: 650; font-family: inherit;
  color: #fff; background: linear-gradient(100deg, var(--accent), var(--accent-2));
  border: 1.5px solid transparent; border-radius: 11px; cursor: pointer; white-space: nowrap;
  box-shadow: 0 6px 16px -8px var(--accent);
  transition: filter .15s, transform .1s, box-shadow .15s;
}
.btn:hover:not(:disabled) { filter: brightness(1.06); transform: translateY(-1px); text-decoration: none; }
.btn:active:not(:disabled) { transform: translateY(0); }
.btn:disabled { opacity: .5; cursor: not-allowed; box-shadow: none; }
.btn.ghost {
  background: var(--panel); border-color: var(--border-strong); color: var(--text-soft); box-shadow: none;
}
.btn.ghost:hover:not(:disabled) { background: var(--field); color: var(--text); filter: none; }
.btn.danger { background: var(--danger-soft); border-color: transparent; color: var(--danger); box-shadow: none; }
.btn.danger:hover:not(:disabled) { background: var(--danger); color: #fff; filter: none; }
.btn.sm { padding: 6px 12px; font-size: 12.5px; border-radius: 9px; }
.btn-group { display: flex; gap: 9px; flex-wrap: wrap; }

/* 分页 */
.pager { display: flex; gap: 7px; align-items: center; justify-content: center; padding: 16px; flex-wrap: wrap; }
.pager a, .pager > span {
  padding: 6px 12px; border-radius: 9px; font-size: 13px; color: var(--text-soft);
  border: 1px solid var(--border); text-decoration: none; background: var(--panel);
}
.pager a:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; }
.pager .cur { background: var(--accent); color: #fff; border-color: transparent; font-weight: 650; }
.pager .muted { border: 0; background: none; }

/* 弹层 */
.modal-mask {
  position: fixed; inset: 0; background: rgba(16, 24, 48, .5); backdrop-filter: blur(4px);
  display: none; align-items: center; justify-content: center; z-index: 60; padding: 20px;
}
.modal-mask.show { display: flex; animation: fade .16s ease; }
@keyframes fade { from { opacity: 0; } }
.modal {
  background: var(--panel); border: 1px solid var(--border); border-radius: 18px;
  width: 100%; max-width: 760px; max-height: 88vh; display: flex; flex-direction: column;
  box-shadow: var(--shadow-lg);
}
.modal.wide { max-width: 980px; }
/* 长邮箱会把表撑得超出弹窗，把右边的列挤没。 */
.modal .tbl td.ellip { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.modal .tbl[style*="fixed"] td { overflow: hidden; }
.modal .tbl[style*="fixed"] td .tag { max-width: 100%; overflow: hidden; text-overflow: ellipsis; }
.modal header { padding: 17px 20px; border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; }
.modal header h3 { margin: 0; font-size: 16.5px; font-weight: 700; }
.modal .body { padding: 20px; overflow-y: auto; }
.modal footer { padding: 15px 20px; border-top: 1px solid var(--border); display: flex; gap: 10px; justify-content: flex-end; background: var(--field); }
.modal .x {
  background: none; border: 0; color: var(--muted); font-size: 24px; cursor: pointer;
  line-height: 1; padding: 0 6px; border-radius: 8px; transition: color .15s;
}
.modal .x:hover { color: var(--danger); }

/* 提示条 */
#toast { position: fixed; right: 22px; bottom: 22px; z-index: 90; display: flex; flex-direction: column; gap: 10px; }
.toast {
  padding: 13px 17px; border-radius: 12px; font-size: 13.5px; max-width: 400px; font-weight: 500;
  background: var(--panel); border: 1px solid var(--border);
  box-shadow: var(--shadow-lg); animation: slide .2s ease;
}
.toast.ok { border-left: 4px solid var(--ok); color: var(--ok); }
.toast.err { border-left: 4px solid var(--danger); color: var(--danger); }
@keyframes slide { from { opacity: 0; transform: translateY(10px); } }

.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 12.5px; }
.muted { color: var(--muted); }
.small { font-size: 12.5px; }
.hidden { display: none !important; }
.nowrap { white-space: nowrap; }
.right { text-align: right; }
.warn-box {
  padding: 13px 16px; border-radius: 12px; font-size: 13px; line-height: 1.7;
  background: var(--warn-soft); color: var(--warn); margin-bottom: 15px;
}
.warn-box strong { font-weight: 700; }
.info-box-a { padding: 13px 16px; border-radius: 12px; font-size: 13px; background: var(--accent-soft); color: var(--accent); margin-bottom: 15px; }

/* 进度条 */
.progress { height: 6px; border-radius: 999px; background: var(--field); overflow: hidden; margin: 10px 0 4px; }
.progress > i { display: block; height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent-2)); transition: width .25s; }

/* 登录 */
.login-wrap {
  min-height: 100vh; display: grid; place-items: center; padding: 20px;
  background: radial-gradient(1000px 520px at 12% -8%, var(--accent-soft), transparent 62%),
              radial-gradient(880px 460px at 92% 108%, var(--ok-soft), transparent 60%), var(--bg);
}
.login-card {
  width: 100%; max-width: 388px; background: var(--panel); border: 1px solid var(--border);
  border-radius: 20px; padding: 36px 34px; box-shadow: var(--shadow-lg);
}
.login-card .logo {
  width: 48px; height: 48px; border-radius: 15px; margin: 0 auto 16px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: grid; place-items: center; font-weight: 800; color: #fff; font-size: 21px;
  box-shadow: 0 10px 22px -10px var(--accent);
}
.login-card h1 { margin: 0 0 6px; font-size: 21px; text-align: center; font-weight: 750; }
.login-card p.sub { margin: 0 0 26px; text-align: center; color: var(--muted); font-size: 13.5px; }
.login-card .field { margin-bottom: 16px; }
.login-card .btn { width: 100%; padding: 12px; margin-top: 8px; font-size: 14.5px; }
.login-err {
  padding: 11px 14px; border-radius: 11px; font-size: 13px; margin-bottom: 18px;
  background: var(--danger-soft); color: var(--danger);
}

@media (max-width: 880px) {
  .layout { grid-template-columns: 1fr; }
  .side { position: static; height: auto; }
  .nav { flex-direction: row; flex-wrap: wrap; }
  .nav a { flex: 1 1 auto; justify-content: center; }
  .nav-sep { display: none; }
  .main { padding: 18px 14px 50px; }
  .page-head h1 { font-size: 20px; }
}