/* =========================================================
   NETASSET — NETWORK TOPOLOGY
   Page-specific styles ONLY

   IMPORTANT:
   Do not style .sidebar here.
   Sidebar comes from the shared NETASSET layout.
   ========================================================= */

/* =========================================================
   PAGE DESCRIPTION
   ========================================================= */

.topology-page-description {
  margin: 8px 0 0;

  color: #5f7898;

  font-size: 14px;
  line-height: 1.5;

  font-weight: 400;
}

/* =========================================================
   PAGE CONTENT
   ========================================================= */

.network-topology-page {
  padding-top: 28px;
  padding-bottom: 40px;

  display: flex;
  flex-direction: column;

  gap: 20px;
}

/* =========================================================
   CONTROL CARD
   ========================================================= */

.topology-control-card {
  background: #ffffff;

  border: 1px solid #d7e1ec;

  border-radius: 12px;

  overflow: hidden;
}

/* =========================================================
   TOOLBAR
   ========================================================= */

.topology-toolbar {
  min-height: 78px;

  padding: 14px 20px;

  display: flex;

  align-items: center;

  justify-content: space-between;

  gap: 20px;

  border-bottom: 1px solid #d7e1ec;
}

/* =========================================================
   SEARCH
   ========================================================= */

.topology-search {
  position: relative;

  width: 100%;

  max-width: 515px;
}

.topology-search-icon {
  position: absolute;

  left: 16px;
  top: 50%;

  transform: translateY(-50%);

  color: #50729a;

  font-size: 18px;

  pointer-events: none;

  line-height: 1;
}

.topology-search input {
  width: 100%;

  height: 48px;

  padding: 0 16px 0 44px;

  border: 1px solid #cfdce9;

  border-radius: 9px;

  outline: none;

  background: #ffffff;

  color: #0b2545;

  font-family: "Inter", sans-serif;

  font-size: 14px;

  transition:
    border-color 160ms ease,
    box-shadow 160ms ease;
}

.topology-search input::placeholder {
  color: #6681a3;
}

.topology-search input:focus {
  border-color: #13b8b1;

  box-shadow: 0 0 0 3px rgba(19, 184, 177, 0.1);
}

/* =========================================================
   FILTERS
   ========================================================= */

.topology-filter-group {
  display: flex;

  align-items: center;

  gap: 10px;

  flex-shrink: 0;
}

.topology-filter-group select {
  width: 180px;

  height: 48px;

  padding: 0 38px 0 16px;

  border: 1px solid #cfdce9;

  border-radius: 9px;

  background-color: #ffffff;

  color: #0b2545;

  font-family: "Inter", sans-serif;

  font-size: 14px;

  outline: none;

  cursor: pointer;

  transition:
    border-color 160ms ease,
    box-shadow 160ms ease;
}

.topology-filter-group select:focus {
  border-color: #13b8b1;

  box-shadow: 0 0 0 3px rgba(19, 184, 177, 0.1);
}

/* =========================================================
   STATISTICS
   ========================================================= */

.topology-stat-grid {
  display: grid;

  grid-template-columns: repeat(4, minmax(0, 1fr));

  background: #ffffff;
}

.topology-stat-card {
  min-height: 104px;

  padding: 22px 26px;

  display: flex;

  flex-direction: column;

  justify-content: center;

  border-right: 1px solid #d7e1ec;
}

.topology-stat-card:last-child {
  border-right: none;
}

.topology-stat-label {
  display: block;

  margin-bottom: 8px;

  color: #587799;

  font-family: "Inter", sans-serif;

  font-size: 11px;

  line-height: 1.4;

  font-weight: 600;

  letter-spacing: 0.09em;

  text-transform: uppercase;
}

.topology-stat-value {
  display: block;

  color: #071f3d;

  font-family: "Space Grotesk", sans-serif;

  font-size: 28px;

  line-height: 1;

  font-weight: 600;
}

/* =========================================================
   TOPOLOGY MAP CARD
   ========================================================= */

.topology-map-card {
  background: #ffffff;

  border: 1px solid #d7e1ec;

  border-radius: 12px;

  overflow: hidden;
}

/* =========================================================
   MAP HEADER
   ========================================================= */

.topology-map-header {
  min-height: 100px;

  padding: 24px 26px;

  display: flex;

  align-items: center;

  justify-content: space-between;

  gap: 20px;

  border-bottom: 1px solid #d7e1ec;
}

.topology-map-header h2 {
  margin: 0 0 6px;

  color: #081f3d;

  font-family: "Space Grotesk", sans-serif;

  font-size: 20px;

  line-height: 1.25;

  font-weight: 600;
}

.topology-map-header p {
  margin: 0;

  color: #617b9b;

  font-family: "Inter", sans-serif;

  font-size: 14px;

  line-height: 1.5;
}

.topology-map-header-actions {
  display: flex;

  align-items: center;

  gap: 8px;
}

.topology-header-btn {
  min-width: 70px;

  height: 40px;

  padding: 0 14px;

  border: 1px solid #cfdeec;

  border-radius: 8px;

  background: #ffffff;

  color: #183c62;

  font-family: "Inter", sans-serif;

  font-size: 13px;

  font-weight: 500;

  cursor: pointer;

  transition:
    border-color 160ms ease,
    background-color 160ms ease,
    color 160ms ease;
}

.topology-header-btn:hover {
  border-color: #13b8b1;

  background: #f0fbfa;

  color: #008e8a;
}

/* =========================================================
   CANVAS
   ========================================================= */

.topology-canvas {
  position: relative;

  min-height: 560px;

  overflow: hidden;

  background: #ffffff;

  isolation: isolate;
}

/* =========================================================
   GRID
   ========================================================= */

.topology-grid {
  position: absolute;

  inset: 0;

  z-index: 0;

  background-image:
    linear-gradient(to right, rgba(35, 81, 122, 0.065) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(35, 81, 122, 0.065) 1px, transparent 1px);

  background-size: 32px 32px;

  pointer-events: none;
}

/* =========================================================
   SVG LINKS
   ========================================================= */

.topology-links {
  position: absolute;

  inset: 0;

  width: 100%;
  height: 100%;

  z-index: 1;

  pointer-events: none;

  overflow: visible;
}

.topology-links line {
  stroke: #9eb5cb;

  stroke-width: 1.6;

  fill: none;
}

.topology-links path {
  stroke: #9eb5cb;

  stroke-width: 1.6;

  fill: none;
}

.topology-links marker path {
  fill: #9eb5cb;

  stroke: none;
}

/* =========================================================
   NODE CONTAINER
   ========================================================= */

.topology-nodes {
  position: absolute;

  inset: 0;

  z-index: 2;
}

/* =========================================================
   NODE
   ========================================================= */

.topology-node {
  position: absolute;

  width: 190px;

  min-height: 92px;

  padding: 14px 16px;

  background: #ffffff;

  border: 1px solid #cfddeb;

  border-radius: 10px;

  box-shadow: 0 3px 12px rgba(21, 54, 86, 0.07);

  cursor: grab;

  user-select: none;

  transition:
    border-color 160ms ease,
    box-shadow 160ms ease,
    transform 160ms ease;
}

.topology-node:hover {
  border-color: #13b8b1;

  box-shadow: 0 5px 18px rgba(21, 54, 86, 0.12);
}

.topology-node:active {
  cursor: grabbing;
}

/* =========================================================
   NODE HEADER
   ========================================================= */

.topology-node-header {
  display: flex;

  align-items: center;

  gap: 10px;

  margin-bottom: 10px;
}

.topology-node-icon {
  width: 30px;
  height: 30px;

  display: flex;

  align-items: center;
  justify-content: center;

  flex-shrink: 0;

  border-radius: 7px;

  background: #e7f8f7;

  color: #009e9a;

  font-family: "IBM Plex Mono", monospace;

  font-size: 10px;

  font-weight: 500;
}

.topology-node-type {
  color: #66809f;

  font-family: "Inter", sans-serif;

  font-size: 9px;

  line-height: 1.2;

  font-weight: 600;

  letter-spacing: 0.08em;

  text-transform: uppercase;
}

/* =========================================================
   NODE NAME
   ========================================================= */

.topology-node-name {
  margin: 0;

  color: #082241;

  font-family: "Space Grotesk", sans-serif;

  font-size: 14px;

  line-height: 1.35;

  font-weight: 600;
}

.topology-node-code {
  margin-top: 4px;

  color: #597898;

  font-family: "IBM Plex Mono", monospace;

  font-size: 11px;

  line-height: 1.4;
}

/* =========================================================
   NODE STATUS
   ========================================================= */

.topology-node-status {
  display: inline-flex;

  align-items: center;

  gap: 5px;

  margin-top: 9px;

  color: #07866f;

  font-size: 10px;

  font-weight: 600;
}

.topology-node-status::before {
  content: "";

  width: 6px;
  height: 6px;

  border-radius: 50%;

  background: #12ad82;
}

/* =========================================================
   EMPTY STATE
   ========================================================= */

.topology-empty-state {
  position: absolute;

  left: 50%;
  top: 50%;

  transform: translate(-50%, -50%);

  width: min(360px, calc(100% - 40px));

  display: flex;

  flex-direction: column;

  align-items: center;

  text-align: center;
}

.topology-empty-icon {
  width: 52px;
  height: 52px;

  margin-bottom: 16px;

  display: flex;

  align-items: center;
  justify-content: center;

  border: 1px solid #cfe0ec;

  border-radius: 12px;

  background: #f4f9fc;

  color: #0aa7a3;

  font-family: "Space Grotesk", sans-serif;

  font-size: 20px;

  font-weight: 600;
}

.topology-empty-state strong {
  margin-bottom: 6px;

  color: #102b4b;

  font-family: "Space Grotesk", sans-serif;

  font-size: 16px;

  font-weight: 600;
}

.topology-empty-state span {
  color: #6b84a0;

  font-family: "Inter", sans-serif;

  font-size: 13px;

  line-height: 1.5;
}

/* =========================================================
   ZOOM CONTROLS
   ========================================================= */

.topology-zoom-controls {
  position: absolute;

  left: 18px;
  top: 18px;

  z-index: 10;

  display: flex;

  flex-direction: column;

  gap: 6px;
}

.topology-zoom-controls button {
  width: 42px;
  height: 42px;

  display: flex;

  align-items: center;
  justify-content: center;

  border: 1px solid #cfdeec;

  border-radius: 8px;

  background: rgba(255, 255, 255, 0.96);

  color: #15395d;

  font-family: "Inter", sans-serif;

  font-size: 17px;

  font-weight: 500;

  box-shadow: 0 2px 7px rgba(20, 50, 80, 0.06);

  cursor: pointer;

  transition:
    border-color 160ms ease,
    color 160ms ease,
    background-color 160ms ease;
}

.topology-zoom-controls button:hover {
  border-color: #13b8b1;

  background: #f2fbfa;

  color: #008f8a;
}

.topology-zoom-controls button:last-child {
  margin-top: 2px;

  font-size: 12px;
}

/* =========================================================
   LEGEND
   ========================================================= */

.topology-legend {
  position: absolute;

  right: 18px;
  bottom: 18px;

  z-index: 10;

  min-width: 155px;

  padding: 14px 16px;

  border: 1px solid #d2dfeb;

  border-radius: 9px;

  background: rgba(255, 255, 255, 0.96);

  box-shadow: 0 3px 12px rgba(20, 50, 80, 0.06);
}

.topology-legend-title {
  margin-bottom: 10px;

  color: #597898;

  font-family: "Inter", sans-serif;

  font-size: 9px;

  font-weight: 600;

  letter-spacing: 0.09em;

  text-transform: uppercase;
}

.topology-legend-item {
  display: flex;

  align-items: center;

  gap: 8px;

  margin-top: 7px;

  color: #193b5e;

  font-family: "Inter", sans-serif;

  font-size: 11px;
}

.legend-dot {
  width: 8px;
  height: 8px;

  border-radius: 50%;

  flex-shrink: 0;
}

.legend-router {
  background: #0aa7a3;
}

.legend-switch {
  background: #4c76a3;
}

.legend-server {
  background: #765da8;
}

.legend-olt {
  background: #d58a34;
}

.legend-virtual {
  background: #4e9b72;
}

/* =========================================================
   MAP FOOTER
   ========================================================= */

.topology-map-footer {
  min-height: 48px;

  padding: 0 20px;

  display: flex;

  align-items: center;

  gap: 8px;

  border-top: 1px solid #d7e1ec;

  color: #68819e;

  font-family: "Inter", sans-serif;

  font-size: 12px;
}

.topology-footer-separator {
  color: #a6b8c9;
}

/* =========================================================
   FULLSCREEN
   ========================================================= */

.topology-map-card.is-fullscreen {
  position: fixed;

  inset: 0;

  z-index: 9999;

  border-radius: 0;

  border: none;

  display: flex;

  flex-direction: column;
}

.topology-map-card.is-fullscreen .topology-canvas {
  flex: 1;

  min-height: 0;
}

/* =========================================================
   RESPONSIVE
   ========================================================= */

@media (max-width: 1300px) {
  .topology-filter-group select {
    width: 155px;
  }

  .topology-search {
    max-width: 430px;
  }
}

@media (max-width: 1100px) {
  .topology-toolbar {
    align-items: stretch;

    flex-direction: column;
  }

  .topology-search {
    max-width: none;
  }

  .topology-filter-group {
    width: 100%;

    display: grid;

    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .topology-filter-group select {
    width: 100%;
  }
}

@media (max-width: 800px) {
  .topology-stat-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .topology-stat-card:nth-child(2) {
    border-right: none;
  }

  .topology-stat-card:nth-child(-n + 2) {
    border-bottom: 1px solid #d7e1ec;
  }

  .topology-filter-group {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .topology-map-header {
    align-items: flex-start;

    flex-direction: column;
  }

  .topology-canvas {
    min-height: 500px;
  }
}

@media (max-width: 560px) {
  .network-topology-page {
    padding-top: 18px;
  }

  .topology-toolbar {
    padding: 14px;
  }

  .topology-stat-card {
    padding: 18px;
  }

  .topology-stat-value {
    font-size: 24px;
  }

  .topology-map-header {
    padding: 20px;
  }

  .topology-filter-group {
    grid-template-columns: 1fr;
  }

  .topology-map-footer {
    padding: 12px 16px;

    align-items: flex-start;

    flex-direction: column;

    gap: 3px;
  }

  .topology-footer-separator {
    display: none;
  }
}