@import url("https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@400;500;600;700&family=Plus+Jakarta+Sans:wght@400;500;600;700&display=swap");

:root {
  --bg: #0c1220;
  --bg-glow: radial-gradient(1200px 600px at 10% -10%, rgba(45, 212, 191, 0.12), transparent 55%),
    radial-gradient(900px 500px at 100% 0%, rgba(56, 189, 248, 0.1), transparent 50%),
    #0c1220;
  --surface: rgba(22, 32, 51, 0.92);
  --surface2: #1c2940;
  --line: rgba(148, 163, 184, 0.16);
  --text: #eef3f9;
  --muted: #93a4bc;
  --accent: #2dd4bf;
  --accent-2: #38bdf8;
  --accent-hover: #14b8a6;
  --accent-soft: rgba(45, 212, 191, 0.14);
  --success: #34d399;
  --danger: #f87171;
  --warn: #fbbf24;
  --radius: 14px;
  --radius-sm: 10px;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.28);
  --font: "Plus Jakarta Sans", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg-glow);
  color: var(--text);
  line-height: 1.55;
  min-height: 100vh;
}

a { color: var(--accent-2); text-decoration: none; }
a:hover { color: #7dd3fc; }

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

.sidebar {
  width: 248px;
  background: linear-gradient(180deg, rgba(18, 28, 46, 0.98), rgba(12, 18, 32, 0.98));
  border-right: 1px solid var(--line);
  padding: 1.35rem 0 1.5rem;
  flex-shrink: 0;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.sidebar .brand {
  padding: 0 1.25rem 0.35rem;
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.02em;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.sidebar .brand-sub {
  padding: 0 1.25rem 0.85rem;
  color: var(--muted);
  font-size: 0.75rem;
}

.lang-switch {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0 1.25rem 0.95rem;
  margin-bottom: 0.55rem;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.85rem;
}

.lang-switch a {
  color: var(--muted);
  text-decoration: none;
  padding: 0.15rem 0.4rem;
  border-radius: 6px;
}

.lang-switch a:hover,
.lang-switch a.active {
  color: var(--text);
  background: var(--accent-soft);
  text-decoration: none;
  font-weight: 600;
}

.auth-lang {
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 10;
  display: flex;
  gap: 0.4rem;
  align-items: center;
  color: var(--muted);
  font-size: 0.9rem;
}

.auth-lang a {
  color: var(--muted);
  text-decoration: none;
}

.auth-lang a:hover,
.auth-lang a.active {
  color: var(--text);
  font-weight: 600;
}

.sidebar nav a {
  display: block;
  margin: 0.15rem 0.75rem;
  padding: 0.55rem 0.85rem;
  color: var(--muted);
  text-decoration: none;
  border-radius: 10px;
  font-size: 0.92rem;
  font-weight: 500;
  transition: background 0.15s ease, color 0.15s ease;
}

.sidebar nav a:hover {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  text-decoration: none;
}

.sidebar nav a.active {
  background: var(--accent-soft);
  color: var(--accent);
  text-decoration: none;
}

.sidebar nav a.logout {
  margin-top: 1.25rem;
  color: #fca5a5;
}

.sidebar nav a.logout:hover {
  background: rgba(248, 113, 113, 0.12);
  color: #fecaca;
}

.main {
  flex: 1;
  padding: 1.75rem 2rem 2.5rem;
  max-width: 1180px;
}

.page-head {
  margin-bottom: 1.25rem;
}

.page-head h1 {
  font-size: 1.65rem;
  margin: 0 0 0.35rem;
  letter-spacing: -0.02em;
}

.page-head .hint {
  margin: 0;
  max-width: 52rem;
}

h1 { font-size: 1.5rem; margin-top: 0; }

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.25rem 1.35rem;
  margin-bottom: 1rem;
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
}

.card-title {
  margin: 0 0 0.85rem;
  font-size: 1rem;
  font-weight: 600;
}

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0.9rem;
  margin-bottom: 1rem;
}

.stat {
  position: relative;
  overflow: hidden;
  background: linear-gradient(160deg, rgba(28, 41, 64, 0.95), rgba(18, 28, 46, 0.95));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.1rem 1rem 1rem;
  text-align: left;
  box-shadow: var(--shadow);
}

.stat::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  opacity: 0.85;
}

.stat .num {
  font-size: 1.85rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  background: linear-gradient(90deg, #5eead4, #7dd3fc);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1.15;
}

.stat .label {
  color: var(--muted);
  font-size: 0.82rem;
  margin-top: 0.35rem;
  font-weight: 500;
}

.stat.stat-ok .num {
  background: none;
  -webkit-background-clip: unset;
  background-clip: unset;
  color: var(--success);
  font-size: 1.35rem;
  padding-top: 0.35rem;
}

.stat.stat-off .num {
  background: none;
  -webkit-background-clip: unset;
  background-clip: unset;
  color: var(--danger);
  font-size: 1.35rem;
  padding-top: 0.35rem;
}

label { display: block; margin: 0.75rem 0 0.35rem; color: var(--muted); font-size: 0.9rem; }

input[type="text"],
input[type="password"],
input[type="number"],
textarea,
select {
  width: 100%;
  max-width: 480px;
  padding: 0.6rem 0.8rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(148, 163, 184, 0.28);
  background: rgba(8, 12, 22, 0.65);
  color: var(--text);
  font-family: inherit;
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: rgba(45, 212, 191, 0.55);
  box-shadow: 0 0 0 3px rgba(45, 212, 191, 0.12);
}

.password-field {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  max-width: 480px;
}
.password-field input {
  flex: 1;
  max-width: none;
  margin: 0;
}
.password-field.inline {
  display: inline-flex;
  max-width: 320px;
  vertical-align: middle;
}
.btn-toggle-pwd {
  flex-shrink: 0;
  margin-top: 0;
  padding: 0.45rem 0.75rem;
  border-radius: 8px;
  border: 1px solid rgba(148, 163, 184, 0.28);
  background: var(--surface2);
  color: var(--text);
  cursor: pointer;
  font-size: 0.85rem;
  font-family: inherit;
}
.btn-toggle-pwd:hover { border-color: var(--accent); color: var(--accent); }

.totp-bind {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: flex-start;
  margin-top: 0.75rem;
}
.totp-qr {
  width: 180px;
  height: 180px;
  background: #fff;
  padding: 8px;
  border-radius: 8px;
}
.actions-cell form { margin-right: 0.35rem; }
.actions-cell .btn { margin-top: 0; }

textarea { min-height: 100px; max-width: 100%; }

.btn {
  display: inline-block;
  margin-top: 1rem;
  padding: 0.55rem 1.15rem;
  background: linear-gradient(135deg, var(--accent), #0ea5e9);
  color: #042f2e !important;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 650;
  font-family: inherit;
  text-decoration: none !important;
  box-shadow: 0 6px 16px rgba(14, 165, 233, 0.22);
}

.btn:hover {
  filter: brightness(1.05);
  text-decoration: none !important;
}

.btn-danger {
  background: linear-gradient(135deg, #f87171, #ef4444);
  color: #fff !important;
  box-shadow: 0 6px 16px rgba(239, 68, 68, 0.22);
}
.btn-sm { padding: 0.38rem 0.8rem; font-size: 0.85rem; margin-top: 0; }
.btn-ghost {
  background: transparent;
  color: var(--text) !important;
  border: 1px solid var(--line);
  box-shadow: none;
}
.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent) !important;
  filter: none;
}

.alert {
  padding: 0.8rem 1rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1rem;
  background: rgba(120, 53, 15, 0.35);
  border: 1px solid rgba(251, 191, 36, 0.35);
  color: #fef3c7;
}

.alert.ok {
  background: rgba(6, 78, 59, 0.35);
  border-color: rgba(52, 211, 153, 0.35);
  color: #bbf7d0;
}

.table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-sm);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

th, td {
  text-align: left;
  padding: 0.85rem 0.65rem;
  border-bottom: 1px solid var(--line);
  vertical-align: middle;
}

th {
  color: var(--muted);
  font-weight: 600;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

tbody tr {
  transition: background 0.12s ease;
}

tbody tr:hover {
  background: rgba(45, 212, 191, 0.05);
}

.auth-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.auth-card {
  width: 100%;
  max-width: 420px;
}

.hint { color: var(--muted); font-size: 0.85rem; margin-top: 0.25rem; }

.perm-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.perm-grid label { display: flex; align-items: center; gap: 0.5rem; margin: 0; color: var(--text); }

.check-inline {
  display: flex !important;
  align-items: center;
  gap: 0.45rem;
  margin: 0.75rem 0 !important;
  color: var(--text) !important;
  max-width: none;
}

.inline-form {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  align-items: flex-end;
}

.inline-form label {
  margin: 0 0 0.3rem;
}

.inline-form input,
.inline-form select {
  max-width: 220px;
  margin: 0;
}

.inline-form .btn { margin-top: 0; }

.toolbar-note {
  margin: 0 0 0.9rem;
}

.row-action {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  align-items: center;
}

.row-action select {
  max-width: 180px;
  margin: 0;
  padding: 0.35rem 0.5rem;
  font-size: 0.85rem;
}

.row-action .btn { margin-top: 0; }

/* Invite stats */
.invite-rank {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.7rem;
  height: 1.7rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
  background: rgba(148, 163, 184, 0.15);
  color: var(--muted);
}

.invite-rank.top1 { background: rgba(251, 191, 36, 0.2); color: #fbbf24; }
.invite-rank.top2 { background: rgba(148, 163, 184, 0.22); color: #e2e8f0; }
.invite-rank.top3 { background: rgba(217, 119, 6, 0.2); color: #fdba74; }

.user-cell {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}

.user-cell .name { font-weight: 600; }
.user-cell .sub { color: var(--muted); font-size: 0.78rem; }

.meter {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  min-width: 120px;
}

.meter-track {
  flex: 1;
  height: 7px;
  border-radius: 999px;
  background: rgba(148, 163, 184, 0.15);
  overflow: hidden;
}

.meter-fill {
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
}

.meter-val {
  font-weight: 700;
  min-width: 1.5rem;
  color: var(--text);
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  background: var(--accent-soft);
  color: #5eead4;
}

.link-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  align-items: center;
}

.link-actions code {
  display: block;
  max-width: 220px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 0.78rem;
  color: var(--muted);
}

.empty-state {
  text-align: center;
  padding: 2.5rem 1rem;
  color: var(--muted);
}

.empty-state strong {
  display: block;
  color: var(--text);
  margin-bottom: 0.35rem;
  font-size: 1.05rem;
}

@media (max-width: 860px) {
  .layout { flex-direction: column; }
  .sidebar {
    width: 100%;
    height: auto;
    position: relative;
    border-right: none;
    border-bottom: 1px solid var(--line);
  }
  .sidebar nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
    padding: 0 0.5rem 0.5rem;
  }
  .sidebar nav a {
    margin: 0;
    padding: 0.4rem 0.7rem;
    font-size: 0.85rem;
  }
  .main { padding: 1.25rem 1rem 2rem; }
}