/* OCHP IT page — network topology, devices, ports, PoE, VLANs, WAN. Pairs with base.css. */

/* STATS */
.stats{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:.75rem;
  margin-top:3.5rem;
}
.stat{
  padding:1.25rem 1.4rem;background:var(--bg-1);border:1px solid var(--border-1);
  border-radius:var(--radius-lg);transition:all .25s cubic-bezier(.4,0,.2,1);
  position:relative;overflow:hidden;
}
.stat:hover{border-color:var(--border-2);transform:translateY(-3px);box-shadow:var(--shadow-md)}
.stat::before{
  content:'';position:absolute;inset:0;border-radius:var(--radius-lg);
  background:linear-gradient(135deg,transparent 60%,var(--accent,var(--purple)) 200%);
  opacity:.06;pointer-events:none;
}
.stat-num{font-size:2.25rem;font-weight:700;letter-spacing:-.03em;line-height:1;color:var(--accent,var(--text-1))}
.stat-label{font-size:12px;color:var(--text-3);margin-top:8px;font-weight:500;letter-spacing:.02em}

/* NAV */
nav{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.82);
  backdrop-filter:saturate(160%) blur(14px);-webkit-backdrop-filter:saturate(160%) blur(14px);
  border-bottom:1px solid var(--border-1);
}
.nav-inner{max-width:1100px;margin:0 auto;display:flex;gap:1.75rem;padding:0 1.5rem;overflow-x:auto;-ms-overflow-style:none;scrollbar-width:none}
.nav-inner::-webkit-scrollbar{display:none}
nav a{
  color:var(--text-2);text-decoration:none;padding:1.1rem 0;
  font-size:14px;font-weight:500;letter-spacing:-.005em;
  border-bottom:2px solid transparent;white-space:nowrap;
  transition:color .15s,border-color .15s;
}
nav a:hover{color:var(--text-1)}
nav a.active{color:var(--text-1);border-bottom-color:var(--blue)}

/* SECTIONS */
main{max-width:1100px;margin:0 auto;padding:5rem 1.5rem 2rem}
section{margin-bottom:7rem;scroll-margin-top:80px}
.section-head{margin-bottom:2.75rem;max-width:680px}
.section-eyebrow{
  display:flex;align-items:center;gap:14px;
  font-size:11px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;
  color:var(--text-3);margin-bottom:1.25rem;
}
.section-eyebrow::before{content:'';width:32px;height:1px;background:var(--gradient)}
h2{font-size:clamp(1.85rem,3.2vw,2.6rem);font-weight:700;letter-spacing:-.025em;line-height:1.15;margin-bottom:.85rem}
.section-sub{font-size:16px;color:var(--text-2);line-height:1.6}

/* TOPOLOGY FLOW DIAGRAM */
.flow-wrap{
  background:linear-gradient(180deg,var(--bg-1) 0%,#fafbfd 100%);
  border:1px solid var(--border-1);border-radius:var(--radius-xl);
  padding:1.5rem;margin-bottom:2rem;position:relative;overflow:hidden;
}
.flow-wrap::before{
  content:'';position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent 0%,var(--purple) 25%,var(--blue) 50%,var(--emerald) 75%,transparent 100%);
  opacity:.5;
}
.flow-head{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:1rem;gap:1rem;flex-wrap:wrap}
.flow-title{font-size:13px;font-weight:600;color:var(--text-1);letter-spacing:-.005em}
.flow-sub{font-size:12px;color:var(--text-3);margin-top:2px}
.flow-clear{
  font-size:11px;color:var(--text-3);background:var(--bg-2);
  border:1px solid var(--border-1);border-radius:100px;padding:5px 12px;
  cursor:pointer;font-family:inherit;letter-spacing:.04em;transition:all .15s;
  text-transform:uppercase;font-weight:600;
}
.flow-clear:hover{color:var(--text-1);border-color:var(--border-3)}
.flow-clear[data-active="true"]{color:var(--blue);border-color:rgba(37,99,235,.35);background:rgba(37,99,235,.06)}

.flow-svg{width:100%;height:auto;display:block;font-family:'Inter',sans-serif}
.flow-svg .bg-grid{opacity:.4}

.flow-edge{
  fill:none;stroke-linecap:round;
  transition:opacity .25s ease, stroke-width .2s ease;
  cursor:pointer;
}
.flow-edge.idle{opacity:.55}
.flow-edge.dim{opacity:.10}
.flow-edge.hot{opacity:1;filter:url(#net-glow)}

.flow-node-rect{
  transition:fill .2s ease, stroke .2s ease, opacity .25s ease;
  cursor:pointer;
}
.flow-node text{pointer-events:none;user-select:none}
.flow-node-title{font-size:13px;font-weight:600;fill:var(--text-1);letter-spacing:-.005em}
.flow-node-sub{font-size:10.5px;fill:var(--text-3);letter-spacing:.01em}
.flow-node-count{font-size:10px;font-weight:600;fill:var(--text-2);font-family:'JetBrains Mono',ui-monospace,monospace}
.flow-node.dim .flow-node-rect{opacity:.25}
.flow-node.dim text{opacity:.35}
.flow-node.hot .flow-node-rect{stroke-width:2}
.flow-node.selected .flow-node-rect{stroke-width:2.5}

.flow-col-label{
  font-size:10px;font-weight:600;fill:var(--text-3);
  letter-spacing:.18em;text-transform:uppercase;
}
.flow-port{fill:var(--text-3);transition:fill .2s, r .2s}
.flow-node.hot .flow-port,
.flow-node.selected .flow-port{fill:var(--text-1)}

.flow-tooltip{
  position:absolute;pointer-events:none;
  background:var(--bg-3);color:var(--text-1);
  padding:8px 12px;border-radius:8px;
  font-size:12px;font-weight:500;
  border:1px solid var(--border-2);box-shadow:var(--shadow-lg);
  opacity:0;transition:opacity .15s;
  z-index:20;white-space:nowrap;
}
.flow-tooltip.visible{opacity:1}
.flow-tooltip .tt-count{color:var(--blue);font-weight:700}

@media (max-width:760px){
  .flow-wrap{padding:1rem}
  .flow-node-title{font-size:11px}
  .flow-node-sub{font-size:9px}
}

/* DEVICE GRID */
.device-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:.85rem}

.device{
  background:linear-gradient(180deg,var(--bg-1) 0%,#fafbfd 100%);
  border:1px solid var(--border-1);border-radius:var(--radius-lg);
  padding:1.25rem 1.35rem;margin-bottom:.85rem;
  transition:border-color .2s,opacity .25s,transform .2s,box-shadow .25s;
  position:relative;overflow:hidden;
}
.device::before{
  content:'';position:absolute;top:0;left:0;width:3px;height:100%;
  background:var(--accent,var(--blue));opacity:.7;
}
.device:hover{border-color:var(--border-2)}
.device.hidden{display:none}
.device.hot{
  border-color:color-mix(in srgb,var(--accent,var(--blue)) 45%,transparent);
  box-shadow:0 0 0 1px color-mix(in srgb,var(--accent,var(--blue)) 18%,transparent),0 8px 24px rgba(15,23,42,.10);
}
.device-head{display:flex;justify-content:space-between;align-items:flex-start;gap:1rem;margin-bottom:.85rem}
.device-name{font-size:15px;font-weight:600;letter-spacing:-.01em;color:var(--text-1)}
.device-name .accent{color:var(--text-1)}
.device-name .sep{color:var(--text-3);margin:0 6px;font-weight:400}
.device-loc{font-size:12px;color:var(--text-3);margin-top:3px}
.device-tag{
  font-family:'JetBrains Mono',ui-monospace,monospace;font-size:10.5px;
  color:var(--text-2);background:var(--bg-2);padding:5px 9px;border-radius:6px;
  border:1px solid var(--border-1);white-space:nowrap;
}

/* STATUS PILL */
.status-pill{
  display:inline-flex;align-items:center;gap:6px;white-space:nowrap;
  padding:5px 10px;border-radius:100px;
  font-size:10.5px;font-weight:600;letter-spacing:.05em;text-transform:uppercase;
  border:1px solid var(--border-2);background:rgba(255,255,255,.6);
}
.status-pill .pulse{
  width:6px;height:6px;border-radius:50%;background:var(--text-3);
}
.status-pill.ok{color:var(--emerald);border-color:rgba(5,150,105,.30);background:rgba(5,150,105,.06)}
.status-pill.ok .pulse{background:var(--emerald);box-shadow:0 0 8px var(--emerald);animation:pulse-dot 2.4s infinite}
.status-pill.warn{color:var(--amber);border-color:rgba(217,119,6,.30);background:rgba(217,119,6,.06)}
.status-pill.warn .pulse{background:var(--amber);box-shadow:0 0 8px var(--amber)}
.status-pill.off{color:var(--rose);border-color:rgba(225,29,72,.30);background:rgba(225,29,72,.06)}
.status-pill.off .pulse{background:var(--rose)}

@keyframes pulse-dot{
  0%,100%{box-shadow:0 0 0 0 color-mix(in srgb,var(--emerald) 70%,transparent)}
  50%    {box-shadow:0 0 0 6px transparent}
}

/* KEY-VALUE ROW */
.kv-row{
  display:flex;gap:.5rem;flex-wrap:wrap;
  padding-top:.85rem;border-top:1px dashed var(--border-1);
}
.kv{
  display:inline-flex;align-items:center;gap:6px;
  font-size:11px;color:var(--text-2);
  background:var(--bg-2);border:1px solid var(--border-1);
  padding:4px 9px;border-radius:6px;
  font-family:'JetBrains Mono',ui-monospace,monospace;
}
.kv b{
  color:var(--text-3);font-weight:600;font-size:9.5px;
  letter-spacing:.1em;text-transform:uppercase;font-family:inherit;
}

/* SWITCH PORT GRID */
.ports{display:grid;grid-template-columns:repeat(8,1fr);gap:3px;margin-top:.5rem}
.port{
  height:50px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1px;
  padding:3px;
  font-family:'JetBrains Mono',ui-monospace,monospace;font-weight:600;
  background:var(--bg-2);border:1px solid var(--border-1);border-radius:5px;
  color:var(--text-3);position:relative;cursor:default;transition:all .12s;
  overflow:hidden;
}
.port-num{font-size:8.5px;font-weight:700;color:var(--text-2);line-height:1;letter-spacing:.02em}
.port-poe{
  position:absolute;top:5px;right:5px;
  width:14px;height:14px;
  color:var(--amber);opacity:.9;
  filter:drop-shadow(0 0 4px color-mix(in srgb,var(--amber) 50%,transparent));
  pointer-events:none;
}
.port[data-status="uplink"] .port-poe{
  color:var(--purple);opacity:.95;
  filter:drop-shadow(0 0 4px color-mix(in srgb,var(--purple) 60%,transparent));
}
.port[data-status="wired"] .port-poe{
  color:var(--cyan);opacity:.95;
  filter:drop-shadow(0 0 4px color-mix(in srgb,var(--cyan) 55%,transparent));
}
.port-lbl{
  font-size:9px;font-weight:500;line-height:1.05;
  max-width:100%;width:100%;text-align:center;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
  color:var(--text-1);
}
.port[data-status="wired"]{
  background:linear-gradient(135deg,rgba(8,145,178,.10),rgba(8,145,178,.04));
  border-color:rgba(8,145,178,.28);color:var(--cyan);
}
.port[data-status="wired"] .port-lbl{color:var(--cyan)}
.port[data-status="uplink"]{
  background:linear-gradient(135deg,rgba(124,58,237,.14),rgba(37,99,235,.08));
  border-color:rgba(124,58,237,.32);color:var(--purple);
}
.port[data-status="uplink"] .port-lbl{color:var(--purple)}
.port.sfp{background:repeating-linear-gradient(45deg,var(--bg-2) 0 5px,transparent 5px 10px);color:var(--text-3)}
.port:hover{transform:translateY(-1px);border-color:var(--border-3);z-index:2}
.port:hover::after{
  content:attr(data-tip);position:absolute;bottom:calc(100% + 6px);left:50%;
  transform:translateX(-50%);
  background:var(--bg-3);color:var(--text-1);padding:6px 10px;border-radius:6px;
  font-family:'Inter',sans-serif;font-size:11px;font-weight:500;
  white-space:nowrap;box-shadow:var(--shadow-md);z-index:10;pointer-events:none;
  border:1px solid var(--border-2);
}

/* VLAN CARDS */
.vlan-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:.85rem;margin-bottom:3rem}
.vlan-card{
  background:linear-gradient(180deg,var(--bg-1),#fafbfd);
  border:1px solid var(--border-1);border-radius:var(--radius-lg);
  padding:1.25rem 1.35rem;position:relative;overflow:hidden;
  transition:transform .25s,border-color .25s;
}
.vlan-card::before{
  content:'';position:absolute;top:0;left:0;right:0;height:3px;
  background:var(--accent,var(--blue));
}
.vlan-card::after{
  content:'';position:absolute;top:-40px;right:-40px;width:120px;height:120px;
  background:radial-gradient(circle,var(--accent,var(--blue)),transparent 70%);
  opacity:.08;pointer-events:none;
}
.vlan-card:hover{transform:translateY(-3px);border-color:var(--border-2)}
.vlan-head{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:8px}
.vlan-name{font-size:16px;font-weight:600;color:var(--text-1);letter-spacing:-.01em}
.vlan-type{
  font-size:10px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;
  color:var(--accent,var(--blue));
}
.vlan-subnet{
  font-family:'JetBrains Mono',ui-monospace,monospace;font-size:13px;font-weight:600;
  color:var(--text-2);margin-bottom:12px;letter-spacing:-.01em;
}
.vlan-meta{display:flex;gap:1rem;flex-wrap:wrap;font-size:11px;color:var(--text-2)}
.vlan-meta span{display:inline-flex;flex-direction:column;gap:1px}
.vlan-meta b{font-size:9.5px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--text-3)}

/* LEGEND */
.legend-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:.85rem;
  align-items:stretch;
}
@media (max-width:760px){.legend-grid{grid-template-columns:1fr}}
.legend-card{
  background:linear-gradient(180deg,var(--bg-1),#fafbfd);
  border:1px solid var(--border-1);border-radius:var(--radius-lg);
  padding:1.1rem 1.25rem 1.2rem;position:relative;overflow:hidden;
}
.legend-title{
  font-size:10.5px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;
  color:var(--text-3);margin-bottom:.85rem;
  padding-bottom:.65rem;border-bottom:1px solid var(--border-1);
}
.legend-list{list-style:none;display:flex;flex-direction:column;gap:9px}
.legend-list li{
  display:flex;align-items:center;gap:10px;
  font-size:13px;color:var(--text-2);line-height:1.4;
}
.legend-list li b{color:var(--text-1);font-weight:600;margin-right:2px}
.legend-icon{
  display:inline-flex;align-items:center;justify-content:center;
  width:26px;height:26px;flex-shrink:0;
  border-radius:6px;
}
.legend-icon svg{width:14px;height:14px}
.legend-icon.amber {background:rgba(217,119,6,.10);border:1px solid rgba(217,119,6,.30);color:var(--amber)}
.legend-icon.purple{background:rgba(124,58,237,.10);border:1px solid rgba(124,58,237,.30);color:var(--purple)}
.legend-icon.cyan  {background:rgba(8,145,178,.10);border:1px solid rgba(8,145,178,.30);color:var(--cyan)}
.legend-tag{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:62px;padding:4px 8px;flex-shrink:0;
  font-family:'JetBrains Mono',ui-monospace,monospace;
  font-size:10.5px;font-weight:700;letter-spacing:.04em;color:var(--text-1);
  background:var(--bg-2);border:1px solid var(--border-2);border-radius:6px;
  text-transform:uppercase;
}

/* FOOTER */
footer{
  max-width:1100px;margin:0 auto;padding:2.5rem 1.5rem 4rem;
  border-top:1px solid var(--border-1);color:var(--text-3);font-size:13px;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:1rem;align-items:center;
}
footer a{color:var(--text-2);text-decoration:none;border-bottom:1px solid var(--border-2);transition:color .15s,border-color .15s}
footer a:hover{color:var(--text-1);border-bottom-color:var(--blue)}

/* PRINT */
@media print{
  body{background:white;color:black}
  .hero::before,.hero::after,nav,footer{display:none}
  h1,.device-name,.vlan-name{color:black!important;-webkit-text-fill-color:black}
  .device,.vlan-card{break-inside:avoid;border-color:#ddd}
  section{margin-bottom:2rem;page-break-inside:avoid}
}