/* ==========================================================================
   Транспортная сеть филиалов — оформление
   ========================================================================== */

:root{
  --bg:#0b1017;
  --bg-2:#0f1620;
  --panel:#141c27;
  --panel-2:#1a2330;
  --line:#243040;
  --ink:#e8eef7;
  --dim:#8a9bb3;
  --acc:#3b82f6;
  --acc-2:#6366f1;
  --ok:#22c55e;
  --warn:#f59e0b;
  --err:#ef4444;
  --radius:14px;
  --shadow:0 10px 30px rgba(0,0,0,.45);
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font:15px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Inter,Arial,sans-serif;
  display:flex;flex-direction:column;min-height:100vh;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--acc);text-decoration:none}
h1,h2,h3{margin:0;font-weight:600;letter-spacing:-.2px}

/* ==========================================================================
   Страница входа
   ========================================================================== */
.login-body{
  background:
    radial-gradient(1100px 700px at 15% -10%, #16243a 0%, transparent 60%),
    radial-gradient(900px 600px at 110% 110%, #1b1f3a 0%, transparent 55%),
    var(--bg);
  /* Абсолютное центрирование вместо flex и grid.
     Те не зависят от наследования осей, но требуют аккуратности
     с шириной; абсолютное позиционирование работает предсказуемо. */
  position:relative;
  overflow:hidden;
  padding:0;
}

.login-bg{position:fixed;inset:0;overflow:hidden;pointer-events:none}
.orb{
  position:absolute;border-radius:50%;filter:blur(80px);opacity:.5;
  animation:drift 18s ease-in-out infinite;
}
.orb1{width:420px;height:420px;background:#2563eb;top:-120px;left:-100px}
.orb2{width:360px;height:360px;background:#7c3aed;bottom:-140px;right:-80px;animation-delay:-6s}
.orb3{width:300px;height:300px;background:#0ea5e9;top:40%;left:65%;animation-delay:-11s}
@keyframes drift{
  0%,100%{transform:translate(0,0) scale(1)}
  33%{transform:translate(40px,-30px) scale(1.08)}
  66%{transform:translate(-30px,25px) scale(.95)}
}

.login-wrap{
  position:absolute;
  top:50%;
  left:50%;
  transform:translate(-50%,-50%);
  z-index:1;
  width:460px;
  max-width:calc(100vw - 48px);
  /* Страница входа использует <main>, а для схемы есть общее правило
     main{display:grid; grid-template-columns:1fr 350px}. Без сброса
     карточка попадает в первую колонку и сжимается до десятков пикселей. */
  display:block;
  grid-template-columns:none;
  padding:0;
}
.login-card{
  background:linear-gradient(180deg, rgba(26,35,48,.94), rgba(18,25,35,.94));
  border:1px solid var(--line);
  border-radius:20px;
  padding:40px 38px 32px;
  box-shadow:var(--shadow);
  backdrop-filter:blur(12px);
  animation:card-in .5s cubic-bezier(.2,.8,.3,1);
}
@keyframes card-in{
  from{opacity:0;transform:translateY(14px) scale(.985)}
  to{opacity:1;transform:none}
}

/* логотип: белый штрих на прозрачном фоне */
.login-logo{display:flex;justify-content:center;margin-bottom:22px}
.login-logo img{width:158px;height:auto;display:block}

.login-card h1{
  font-size:22px;text-align:center;line-height:1.25;
  letter-spacing:-.3px;
}
.login-brand{
  margin:6px 0 0;text-align:center;font-size:15px;font-weight:600;
  letter-spacing:.4px;color:var(--acc);
  text-transform:uppercase;
}
.login-sub{margin:10px 0 26px;text-align:center;color:var(--dim);font-size:13.5px}

.login-error{
  background:rgba(239,68,68,.12);border:1px solid rgba(239,68,68,.35);
  color:#fca5a5;border-radius:10px;padding:10px 13px;font-size:13.5px;
  margin-bottom:18px;text-align:center;
}

.fld{display:block;margin-bottom:18px}
.fld span{display:block;font-size:13px;color:var(--dim);margin-bottom:8px}
.fld input{
  width:100%;padding:14px 16px;border-radius:12px;
  background:#0e1620;border:1px solid var(--line);color:var(--ink);
  font-size:15.5px;font-family:inherit;transition:border-color .18s, box-shadow .18s;
}
.fld input:focus{
  outline:none;border-color:var(--acc);
  box-shadow:0 0 0 3px rgba(59,130,246,.18);
}

.btn-primary{
  width:100%;margin-top:8px;padding:14px 16px;border:0;border-radius:12px;
  background:linear-gradient(135deg,var(--acc),var(--acc-2));
  color:#fff;font-size:15.5px;font-weight:600;font-family:inherit;cursor:pointer;
  transition:transform .12s, box-shadow .18s, filter .18s;
  box-shadow:0 6px 18px rgba(59,130,246,.28);
}
.btn-primary:hover{filter:brightness(1.07);box-shadow:0 8px 22px rgba(59,130,246,.38)}
.btn-primary:active{transform:translateY(1px)}

.login-note{
  margin:20px 0 0;text-align:center;color:var(--dim);font-size:12px;line-height:1.5;
}

/* ==========================================================================
   Шапка
   ========================================================================== */
.top{
  display:flex;justify-content:space-between;align-items:center;gap:20px;
  padding:14px 24px;background:var(--panel);border-bottom:1px solid var(--line);
}
.brand{display:flex;align-items:center;gap:13px}
.brand-logo img{height:32px;width:auto;display:block}
.brand-mark svg circle{fill:#2b3a4f}
.brand-mark svg circle.hub{fill:var(--acc)}
.brand-mark svg path{stroke:#38506e;stroke-width:3;stroke-linecap:round;fill:none}
.brand h1{font-size:18px}
.brand .sub{margin:2px 0 0;color:var(--dim);font-size:12.5px}

.top-right{display:flex;align-items:center;gap:20px}
.live{display:flex;align-items:center;gap:9px;color:var(--dim);font-size:13px}
.dot{
  width:9px;height:9px;border-radius:50%;background:var(--err);
  box-shadow:0 0 0 0 rgba(34,197,94,.55);
}
.dot.on{background:var(--ok);animation:pulse 2.4s infinite}
.dot.warn{background:var(--warn)}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(34,197,94,.5)}
  70%{box-shadow:0 0 0 9px rgba(34,197,94,0)}
  100%{box-shadow:0 0 0 0 rgba(34,197,94,0)}
}

.who{display:flex;align-items:center;gap:12px}
.who-name{color:var(--dim);font-size:13px}
.btn-ghost{
  background:transparent;border:1px solid var(--line);color:var(--dim);
  padding:7px 13px;border-radius:9px;font-size:13px;font-family:inherit;
  cursor:pointer;transition:all .16s;
}
.btn-ghost:hover{border-color:var(--acc);color:var(--ink)}

/* ==========================================================================
   Основная область
   ========================================================================== */
main{flex:1;display:grid;grid-template-columns:1fr 350px;gap:16px;padding:16px;min-height:0}
.board{
  position:relative;background:
    linear-gradient(var(--panel),var(--panel)) padding-box,
    linear-gradient(180deg,rgba(59,130,246,.12),transparent 40%) border-box;
  border:1px solid var(--line);border-radius:var(--radius);
  padding:8px;display:flex;flex-direction:column;min-height:0;
}
#topology{width:100%;flex:1;min-height:0}

.board-foot{
  display:flex;justify-content:space-between;align-items:center;gap:16px;
  padding:8px 10px 4px;flex-wrap:wrap;
}
.legend{display:flex;flex-wrap:wrap;gap:18px;color:var(--dim);font-size:12.5px}
.legend span{display:flex;align-items:center;gap:7px}
.sw{width:22px;height:4px;border-radius:2px;display:inline-block}
.sw.active{background:var(--ok)}
.sw.standby{background:var(--warn)}
.sw.down{background:var(--err)}
.sw.switched{background:var(--acc)}
.sw.cloud{background:#a78bfa}

/* ==========================================================================
   Боковая панель
   ========================================================================== */
.side{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:16px;overflow:auto;
}
.side h2{
  font-size:11.5px;text-transform:uppercase;letter-spacing:.8px;color:var(--dim);
  margin:18px 0 10px;font-weight:600;
}
.side h2:first-child{margin-top:0}

.links,.events{list-style:none;margin:0;padding:0}
.links li{
  display:flex;justify-content:space-between;align-items:center;gap:10px;
  padding:11px 13px;border-radius:10px;background:var(--panel-2);
  margin-bottom:8px;border-left:3px solid var(--line);
  transition:background .2s;
}
.links li.active{border-left-color:var(--ok)}
.links li.standby{border-left-color:var(--warn)}
.links li.down{border-left-color:var(--err);opacity:.72}
.links li.switched{border-left-color:var(--acc);animation:flash 1.8s ease-out 3}
@keyframes flash{
  0%,100%{background:var(--panel-2)}
  50%{background:#1e3557}
}
.links .t{font-weight:500;font-size:14px}
.links .m{color:var(--dim);font-size:12px;margin-top:2px}
.links .badge{
  font-size:10.5px;text-transform:uppercase;letter-spacing:.6px;
  color:var(--dim);white-space:nowrap;
}
.links li.active .badge{color:var(--ok)}
.links li.standby .badge{color:var(--warn)}
.links li.down .badge{color:var(--err)}

.events li{padding:9px 0;border-bottom:1px solid var(--line);font-size:13px}
.events li:last-child{border-bottom:0}
.events .when{color:var(--dim);font-size:11.5px;margin-top:2px}
.events .to{color:var(--acc)}
.muted{color:var(--dim);font-size:13px}

/* ==========================================================================
   Подвал и адаптив
   ========================================================================== */
.foot{padding:6px 24px 16px;color:var(--dim);font-size:12.5px}
.foot b{color:var(--ink);font-weight:600}

@media (max-width:1000px){
  main{grid-template-columns:1fr}
  .board{min-height:440px}
  .top{flex-wrap:wrap;gap:12px}
}

/* --- панель со списком роутеров ------------------------------------- */
.board { position: relative; }

/* Левая колонка панелей: роутеры сверху, версии снизу */
.panels {
  position: absolute;
  left: 14px;
  top: 14px;
  /* Оставляем место легенде и подвалу схемы, иначе панели наезжают на них */
  bottom: 64px;
  z-index: 5;
  width: 330px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  overflow-y: auto;
  scrollbar-width: thin;
  padding-right: 2px;
}

.panels .routers {
  position: static;
  left: auto;
  top: auto;
  width: auto;
}

.panels .versions {
  padding-bottom: 8px;
}

.vsum {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0 0 10px;
}

.vsum .chip {
  font-size: 11px;
  line-height: 1;
  padding: 4px 7px;
  border-radius: 999px;
  background: #1b2530;
  border: 1px solid #2a3743;
  color: #b9c6d4;
  white-space: nowrap;
}

.routers {
  position: absolute;
  left: 14px;
  top: 14px;
  z-index: 5;
  width: 330px;
  background: rgba(15, 21, 29, .9);
  border: 1px solid #24303d;
  border-radius: 12px;
  padding: 12px 14px 10px;
  backdrop-filter: blur(4px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, .35);
}

.routers h2 {
  margin: 0 0 10px;
  font-size: 10.5px;
  letter-spacing: .07em;
  text-transform: uppercase;
  color: #7f8fa3;
  font-weight: 600;
}

.routers table {
  border-collapse: collapse;
  width: 100%;
  table-layout: fixed;
}

.routers th {
  text-align: left;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: #6c7c90;
  font-weight: 600;
  padding: 6px 8px;
  border-bottom: 1px solid #2b3846;
  background: rgba(255, 255, 255, .03);
}

.routers th:last-child,
.routers td:last-child {
  text-align: right;
  width: 132px;
}

.routers td {
  padding: 7px 8px;
  font-size: 12px;
  color: #cfdae6;
  vertical-align: top;
  border-bottom: 1px solid #1c2632;
}

.routers tbody tr:last-child td {
  border-bottom: none;
}

.routers tbody tr:nth-child(even) {
  background: rgba(255, 255, 255, .022);
}

.routers tbody tr:hover td {
  background: rgba(88, 166, 255, .07);
}

.routers td.mono {
  font-family: ui-monospace, Consolas, monospace;
  font-size: 11.5px;
  color: #9fb2c8;
  white-space: nowrap;
}

.routers .lan {
  display: block;
  margin-top: 2px;
  font-family: ui-monospace, Consolas, monospace;
  font-size: 10.5px;
  color: #6c7c90;
}

.routers .st {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  margin-right: 7px;
  background: #5f6f82;
  vertical-align: middle;
}

.routers tr.ok .st { background: #22c55e; }
.routers tr.warn .st { background: #f59e0b; }
.routers tr.down .st { background: #ef4444; }