/* 微社安防 - 深色高级 UI */
:root {
  --bg: #070b12;
  --bg2: #0b111c;
  --card: #101826;
  --card2: #152033;
  --border: rgba(148, 178, 255, .12);
  --border2: rgba(148, 178, 255, .2);
  --txt: #e8eefb;
  --txt2: #8fa3c4;
  --blue: #3d7bff;
  --cyan: #22d3ee;
  --green: #22c55e;
  --red: #ef4444;
  --grad: linear-gradient(135deg, #3d7bff 0%, #22d3ee 100%);
  --grad-soft: linear-gradient(135deg, rgba(61,123,255,.16), rgba(34,211,238,.10));
  --shadow: 0 12px 40px rgba(0, 0, 0, .5);
  --r: 16px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { height: 100%; }
body {
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(1200px 600px at 15% -10%, rgba(61,123,255,.14), transparent 60%),
    radial-gradient(900px 500px at 110% 10%, rgba(34,211,238,.08), transparent 55%),
    var(--bg);
  color: var(--txt);
  min-height: 100%;
}
.hidden { display: none !important; }
.view { min-height: 100vh; }

/* ---------- 按钮 ---------- */
.btn {
  border: 1px solid var(--border2);
  background: var(--card2);
  color: var(--txt);
  padding: 10px 18px;
  border-radius: 12px;
  font-size: 14px;
  cursor: pointer;
  transition: all .18s;
  font-weight: 500;
  white-space: nowrap;
}
.btn:hover { border-color: var(--blue); transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-primary { background: var(--grad); border: none; color: #fff; box-shadow: 0 6px 20px rgba(61,123,255,.35); }
.btn-primary:hover { filter: brightness(1.1); box-shadow: 0 8px 26px rgba(61,123,255,.45); }
.btn-ghost { background: transparent; border-color: var(--border); color: var(--txt2); }
.btn-ghost:hover { color: var(--txt); border-color: var(--border2); }
.btn-danger { background: rgba(239,68,68,.12); border-color: rgba(239,68,68,.4); color: #ff8b8b; }
.btn-block { width: 100%; }
.btn-sm { padding: 6px 12px; font-size: 13px; border-radius: 9px; }

/* ---------- 登录页 ---------- */
#view-auth { display: flex; align-items: center; justify-content: center; padding: 24px; }
.auth-card {
  width: 100%; max-width: 400px;
  background: linear-gradient(180deg, var(--card), rgba(16,24,38,.8));
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 36px 32px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(20px);
}
.auth-logo { text-align: center; margin-bottom: 22px; }
.auth-logo img { width: 76px; height: 76px; border-radius: 20px; box-shadow: 0 10px 30px rgba(61,123,255,.35); }
.auth-logo h1 { font-size: 26px; margin-top: 14px; letter-spacing: 2px; background: var(--grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.auth-sub { color: var(--txt2); font-size: 13px; margin-top: 6px; }
.auth-tabs { display: flex; background: var(--bg2); border-radius: 12px; padding: 4px; margin-bottom: 22px; }
.auth-tabs .tab { flex: 1; background: none; border: none; color: var(--txt2); padding: 10px; border-radius: 9px; cursor: pointer; font-size: 14px; font-weight: 600; transition: all .2s; }
.auth-tabs .tab.active { background: var(--grad); color: #fff; box-shadow: 0 4px 14px rgba(61,123,255,.35); }
.auth-form label { display: block; font-size: 13px; color: var(--txt2); margin-bottom: 14px; }
.auth-form input, .modal-body input {
  width: 100%; margin-top: 7px; padding: 12px 14px;
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: 11px; color: var(--txt); font-size: 15px; outline: none;
  transition: border .2s;
}
.auth-form input:focus, .modal-body input:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(61,123,255,.15); }
.auth-msg { color: var(--red); font-size: 13px; margin-top: 12px; min-height: 18px; text-align: center; }

/* ---------- 顶栏 ---------- */
.topbar {
  position: sticky; top: 0; z-index: 50;
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px 24px;
  background: rgba(7, 11, 18, .75);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.topbar-left, .topbar-right { display: flex; align-items: center; gap: 10px; }
.top-logo { width: 32px; height: 32px; border-radius: 9px; }
.top-title { font-size: 17px; font-weight: 700; letter-spacing: 1px; }
.top-badge { font-size: 11px; background: var(--grad-soft); border: 1px solid var(--border2); color: var(--cyan); padding: 3px 9px; border-radius: 20px; }
.top-user { color: var(--txt2); font-size: 14px; }

/* ---------- 容器 ---------- */
.container { max-width: 1200px; margin: 0 auto; padding: 28px 24px 60px; }
.page-head { display: flex; justify-content: space-between; align-items: flex-end; margin-bottom: 22px; gap: 16px; flex-wrap: wrap; }
.page-title { font-size: 22px; font-weight: 700; }
.page-sub { color: var(--txt2); font-size: 13px; margin-top: 6px; }

/* ---------- 设备卡片 ---------- */
.dev-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 18px; }
.dev-card {
  background: linear-gradient(160deg, var(--card), var(--card2));
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 20px;
  cursor: pointer;
  transition: all .2s;
  position: relative;
  overflow: hidden;
}
.dev-card::before { content: ''; position: absolute; inset: 0; background: var(--grad-soft); opacity: 0; transition: opacity .2s; }
.dev-card:hover { transform: translateY(-4px); border-color: var(--border2); box-shadow: var(--shadow); }
.dev-card:hover::before { opacity: 1; }
.dev-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; position: relative; }
.dev-icon { width: 46px; height: 46px; border-radius: 13px; background: var(--grad-soft); border: 1px solid var(--border2); display: flex; align-items: center; justify-content: center; font-size: 22px; }
.dev-online { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--txt2); }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--red); display: inline-block; box-shadow: 0 0 8px rgba(239,68,68,.8); }
.dot.on { background: var(--green); box-shadow: 0 0 8px rgba(34,197,94,.9); animation: pulse 1.6s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .5; } }
.dev-name { font-size: 16px; font-weight: 600; position: relative; }
.dev-code { font-family: "SF Mono", Menlo, monospace; font-size: 12.5px; color: var(--cyan); letter-spacing: 1px; margin-top: 6px; position: relative; }
.dev-foot { display: flex; justify-content: space-between; align-items: center; margin-top: 16px; position: relative; }
.dev-time { font-size: 12px; color: var(--txt2); }
.dev-actions { display: flex; gap: 8px; }

/* ---------- 空状态 ---------- */
.empty { text-align: center; padding: 80px 0; color: var(--txt2); }
.empty-icon { font-size: 52px; margin-bottom: 16px; opacity: .8; }
.empty p { font-size: 16px; color: var(--txt); }
.empty-sub { font-size: 13px; margin-top: 8px; }

/* ---------- 监控页 ---------- */
.monitor-wrap { display: grid; grid-template-columns: 1fr 340px; gap: 20px; align-items: start; }
@media (max-width: 900px) { .monitor-wrap { grid-template-columns: 1fr; } }
.video-box {
  position: relative; background: #000; border-radius: var(--r); overflow: hidden;
  border: 1px solid var(--border); aspect-ratio: 4/3; box-shadow: var(--shadow);
}
#mon-canvas { width: 100%; height: 100%; object-fit: contain; display: block; background: #000; }
.video-overlay {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
  background: rgba(0, 0, 0, .55); backdrop-filter: blur(3px);
}
.overlay-inner { text-align: center; color: var(--txt2); }
.overlay-icon { font-size: 44px; margin-bottom: 12px; }
.video-tag {
  position: absolute; top: 12px; left: 12px; display: flex; align-items: center; gap: 6px;
  background: rgba(0,0,0,.55); backdrop-filter: blur(8px);
  padding: 5px 11px; border-radius: 20px; font-size: 11.5px; color: #cfe0ff; letter-spacing: .5px;
}
.tag-logo { width: 16px; height: 16px; border-radius: 4px; }
.rec-badge {
  position: absolute; top: 12px; right: 12px; background: rgba(239,68,68,.9);
  color: #fff; font-size: 12px; padding: 5px 12px; border-radius: 20px; font-weight: 700;
  animation: pulse 1.2s infinite;
}
.ctrl-panel { display: flex; flex-direction: column; gap: 16px; }
.ctrl-group { background: linear-gradient(160deg, var(--card), var(--card2)); border: 1px solid var(--border); border-radius: var(--r); padding: 18px; }
.ctrl-title { font-size: 13px; color: var(--txt2); font-weight: 600; margin-bottom: 14px; letter-spacing: 1px; }
.ctrl-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.ctrl-btn {
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: 13px; padding: 13px 8px; color: var(--txt2);
  cursor: pointer; font-size: 12px; transition: all .18s; position: relative; font-family: inherit;
}
.ctrl-btn svg { width: 20px; height: 20px; }
.ctrl-btn:hover { border-color: var(--blue); color: var(--txt); transform: translateY(-2px); }
.ctrl-btn.on { background: var(--grad-soft); border-color: rgba(34,211,238,.5); color: var(--cyan); }
.ctrl-btn.wide { flex-direction: row; justify-content: center; gap: 8px; padding: 14px; }
.ctrl-btn.talk { background: var(--grad); border: none; color: #fff; font-weight: 600; }
.ctrl-btn.talk.active { background: var(--red); }
.sw { width: 30px; height: 16px; border-radius: 10px; background: var(--bg); border: 1px solid var(--border2); position: relative; transition: all .2s; }
.sw::after { content: ''; position: absolute; top: 1.5px; left: 2px; width: 11px; height: 11px; border-radius: 50%; background: var(--txt2); transition: all .2s; }
.sw.on { background: rgba(34,197,94,.35); border-color: var(--green); }
.sw.on::after { left: 15px; background: var(--green); }
.ctrl-val { font-size: 11px; color: var(--cyan); }
.talk-row { margin-top: 12px; }
.talk-hint { font-size: 11.5px; color: var(--txt2); text-align: center; margin-top: 8px; }

/* ---------- 管理后台 ---------- */
.stat-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 14px; margin-bottom: 28px; }
.stat-card { background: linear-gradient(160deg, var(--card), var(--card2)); border: 1px solid var(--border); border-radius: var(--r); padding: 18px 20px; }
.stat-num { font-size: 28px; font-weight: 800; background: var(--grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.stat-label { font-size: 12.5px; color: var(--txt2); margin-top: 6px; }
.admin-section { margin-bottom: 34px; }
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--r); background: var(--card); }
.tbl { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.tbl th { text-align: left; padding: 13px 14px; color: var(--txt2); font-size: 12px; border-bottom: 1px solid var(--border); white-space: nowrap; }
.tbl td { padding: 12px 14px; border-bottom: 1px solid rgba(148,178,255,.06); white-space: nowrap; }
.tbl tr:last-child td { border-bottom: none; }
.tbl tr:hover td { background: rgba(61,123,255,.05); }
.code-cell { font-family: "SF Mono", Menlo, monospace; color: var(--cyan); letter-spacing: .5px; }
.badge-role { padding: 3px 10px; border-radius: 16px; font-size: 11.5px; }
.badge-role.admin { background: var(--grad-soft); color: var(--cyan); border: 1px solid var(--border2); }
.badge-role.user { background: rgba(148,178,255,.08); color: var(--txt2); border: 1px solid var(--border); }
.tag-online { padding: 3px 10px; border-radius: 16px; font-size: 11.5px; }
.tag-online.on { background: rgba(34,197,94,.15); color: var(--green); }
.tag-online.off { background: rgba(239,68,68,.12); color: #ff8b8b; }

/* ---------- 弹窗 ---------- */
.modal-mask { position: fixed; inset: 0; background: rgba(4, 7, 12, .72); backdrop-filter: blur(6px); display: flex; align-items: center; justify-content: center; z-index: 100; padding: 20px; }
.modal { background: linear-gradient(170deg, var(--card2), var(--card)); border: 1px solid var(--border2); border-radius: 20px; width: 100%; max-width: 420px; box-shadow: var(--shadow); }
.modal-head { display: flex; justify-content: space-between; align-items: center; padding: 18px 22px; border-bottom: 1px solid var(--border); }
.modal-head h3 { font-size: 16px; }
.modal-close { background: none; border: none; color: var(--txt2); font-size: 22px; cursor: pointer; line-height: 1; }
.modal-close:hover { color: var(--txt); }
.modal-body { padding: 22px; }
.modal-body label { display: block; font-size: 13px; color: var(--txt2); margin-bottom: 16px; }
.code-body { text-align: center; }
.code-hint { color: var(--txt2); font-size: 13px; margin-bottom: 16px; }
.code-box { font-family: "SF Mono", Menlo, monospace; font-size: 19px; letter-spacing: 3px; color: var(--cyan); background: var(--bg2); border: 1px dashed var(--border2); border-radius: 12px; padding: 14px; margin-bottom: 18px; word-break: break-all; }
.qr-box { display: flex; justify-content: center; margin-bottom: 18px; }
.qr-box img, .qr-box canvas { border-radius: 10px; border: 1px solid var(--border2); background: #fff; padding: 8px; }
.code-actions { display: flex; gap: 10px; }
.code-actions .btn { flex: 1; }

/* ---------- Toast ---------- */
.toast {
  position: fixed; bottom: 30px; left: 50%; transform: translateX(-50%) translateY(20px);
  background: var(--card2); border: 1px solid var(--border2); color: var(--txt);
  padding: 12px 22px; border-radius: 12px; font-size: 14px; opacity: 0; pointer-events: none;
  transition: all .3s; z-index: 200; box-shadow: var(--shadow); max-width: 90vw;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast.err { border-color: rgba(239,68,68,.5); color: #ff8b8b; }