/* ============================================================
   Network feature pages — shared styles
   ============================================================ */

.nf-hero {
  padding-top: 88px; padding-bottom: 56px;
  border-bottom: 1px solid var(--line);
  background: radial-gradient(circle at 25% 0%, color-mix(in oklab, var(--accent) 7%, transparent), transparent 55%);
}
.nf-hero--compact { padding-bottom: 32px; }
.nf-hero__inner { max-width: 760px; }
.nf-hero__title {
  font-size: clamp(44px, 6.4vw, 74px); font-weight: 600;
  line-height: 0.98; letter-spacing: -0.03em; margin: 16px 0 18px;
}
.nf-hero__lede { font-size: 17px; color: var(--fg-1); max-width: 620px; line-height: 1.55; }
.nf-hero__cta { display: flex; gap: 10px; margin-top: 28px; flex-wrap: wrap; }

.nf-hero__metrics {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 0;
  margin-top: 40px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
}
.nf-hero__metric { padding: 18px 16px 18px 0; border-right: 1px solid var(--line); }
.nf-hero__metric:last-child { border-right: 0; }
.nf-hero__metric-v { font-size: 26px; font-weight: 600; color: var(--fg-0); white-space: nowrap; }
.nf-hero__metric-u { font-size: 12px; color: var(--fg-2); margin-left: 4px; font-weight: 500; }
.nf-hero__metric-l { font-size: 11px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--fg-3); margin-top: 4px; }
@media (max-width: 720px) {
  .nf-hero__metrics { grid-template-columns: repeat(2, 1fr); }
  .nf-hero__metric { border-bottom: 1px solid var(--line); }
  .nf-hero__metric:nth-child(2) { border-right: 0; }
  .nf-hero__metric:nth-last-child(-n+2) { border-bottom: 0; }
}

/* Card grid */
.nf-grid-3 {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
}
@media (max-width: 900px) { .nf-grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .nf-grid-3 { grid-template-columns: 1fr; } }
.nf-card { padding: 22px; display: flex; flex-direction: column; gap: 8px; }
.nf-card h4 { font-size: 17px; font-weight: 600; letter-spacing: -0.005em; }
.nf-card p { font-size: 13.5px; line-height: 1.55; margin: 0; }

.nf-bullets { display: flex; flex-direction: column; gap: 8px; margin-top: 12px; }
.nf-bullets li { font-size: 13.5px; color: var(--fg-1); padding-left: 16px; position: relative; }
.nf-bullets li::before { content: '✓'; position: absolute; left: 0; color: var(--accent); font-size: 11px; top: 2px; }

/* 400G platform */
.nf-platform__grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
}
@media (max-width: 900px) { .nf-platform__grid { grid-template-columns: 1fr; } }
.nf-platform__col { padding: 24px; }
.nf-platform__col h4 { font-size: 18px; font-weight: 600; margin-top: 6px; }

/* DDoS visualisation */
.nf-ddos-vis { padding-top: 32px; padding-bottom: 32px; }
.nf-ddos__diagram {
  display: grid; grid-template-columns: 1fr auto 1fr;
  gap: 24px; align-items: center;
  background: var(--bg-2); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 28px; min-height: 200px;
}
@media (max-width: 760px) { .nf-ddos__diagram { grid-template-columns: 1fr; } }
.nf-ddos__layer { display: flex; flex-direction: column; gap: 12px; }
.nf-ddos__lbl { font-size: 11px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--fg-3); }
.nf-ddos__pkts { display: flex; flex-wrap: wrap; gap: 6px; min-height: 60px; }
.nf-ddos__pkt {
  width: 14px; height: 14px; border-radius: 3px;
  background: var(--fg-3); opacity: 0.4;
  animation: nf-pkt 1.6s linear infinite;
}
.nf-ddos__pkt.is-good { background: var(--accent); opacity: 0.85; }
.nf-ddos__pkt.is-bad { background: #ff5070; opacity: 0.6; }
.nf-ddos__diagram.is-attack .nf-ddos__pkt.is-bad { animation-duration: 0.5s; opacity: 0.95; }
@keyframes nf-pkt {
  0% { transform: translateX(-10px); opacity: 0; }
  20% { opacity: 1; }
  100% { transform: translateX(20px); opacity: 0; }
}
.nf-ddos__filter {
  background: var(--bg-3); border: 1px solid var(--line-2);
  border-radius: var(--radius); padding: 16px 20px;
  display: flex; flex-direction: column; gap: 8px; min-width: 220px;
}
.nf-ddos__filter-label { font-size: 11px; letter-spacing: 0.12em; color: var(--accent); }
.nf-ddos__filter-stat { display: flex; flex-direction: column; gap: 4px; font-size: 13px; }
.nf-ddos__filter-stat > div { display: flex; justify-content: space-between; gap: 12px; }
.nf-ddos__caption { margin-top: 14px; font-size: 12px; }

/* DDoS stats */
.nf-stats__grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 1px; background: var(--line);
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
}
@media (max-width: 900px) { .nf-stats__grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .nf-stats__grid { grid-template-columns: 1fr; } }
.nf-stats__item { background: var(--bg-2); padding: 24px; }
.nf-stats__v { font-size: 28px; font-weight: 600; color: var(--accent); letter-spacing: -0.02em; }
.nf-stats__l { font-size: 13px; color: var(--fg-2); margin-top: 4px; }

/* BGP / ASN card */
.nf-asn__card { padding: 28px; }
.nf-asn__head { display: flex; flex-direction: column; gap: 4px; margin-bottom: 20px; }
.nf-asn__head h3 { font-size: 32px; font-weight: 600; color: var(--fg-0); letter-spacing: -0.01em; }
.nf-asn__grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px 32px;
  padding-top: 18px; border-top: 1px dashed var(--line);
}
@media (max-width: 700px) { .nf-asn__grid { grid-template-columns: 1fr 1fr; } }
.nf-asn__grid > div { display: flex; flex-direction: column; gap: 4px; font-size: 13px; }

/* Looking glass */
.nf-lg__shell { padding: 0; overflow: hidden; }
.nf-lg__form {
  display: grid; grid-template-columns: 200px 160px 1fr auto;
  gap: 12px; padding: 16px; background: var(--bg-3);
  border-bottom: 1px solid var(--line); align-items: end;
}
@media (max-width: 800px) { .nf-lg__form { grid-template-columns: 1fr 1fr; } }
.nf-lg__field { display: flex; flex-direction: column; gap: 6px; }
.nf-lg__field--grow { min-width: 0; }
.nf-lg__field label { font-size: 11px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--fg-3); }
.nf-lg__field select, .nf-lg__field input {
  background: var(--bg-1); border: 1px solid var(--line);
  border-radius: 8px; padding: 9px 12px; font-size: 13px;
  color: var(--fg-0); font-family: 'JetBrains Mono', monospace;
}
.nf-lg__field input:focus, .nf-lg__field select:focus { outline: 1px solid var(--accent); border-color: var(--accent); }

.nf-lg__out {
  background: #0b0d10; min-height: 380px; max-height: 480px;
  overflow: auto; font-family: 'JetBrains Mono', monospace;
}
.nf-lg__out-bar {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 16px; font-size: 12px;
  background: rgba(255,255,255,0.02);
  border-bottom: 1px solid var(--line); position: sticky; top: 0;
}
.nf-lg__dot { width: 8px; height: 8px; border-radius: 50%; }
.nf-lg__pre { padding: 16px; font-size: 12.5px; line-height: 1.6; color: var(--fg-1); margin: 0; white-space: pre; }
.nf-lg__pre .is-ok { color: var(--accent); }
.nf-lg__pre .is-best { color: var(--accent); font-weight: 500; }
.nf-lg__pre .is-dim { color: var(--fg-3); }
.nf-lg__cursor { display: inline-block; color: var(--accent); animation: nf-blink 1s steps(2) infinite; }
@keyframes nf-blink { 50% { opacity: 0; } }

.nf-lg__api { padding: 24px; }
.nf-lg__api pre {
  background: var(--bg-1); border: 1px solid var(--line);
  border-radius: 8px; padding: 16px;
  font-size: 12.5px; color: var(--fg-1); overflow-x: auto;
  margin: 0 0 16px 0; line-height: 1.6;
}

/* Availability */
.nf-avail__grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px;
}
@media (max-width: 800px) { .nf-avail__grid { grid-template-columns: repeat(2, 1fr); } }
.nf-avail__item {
  display: flex; align-items: center; gap: 14px; padding: 16px 18px;
}
.nf-avail__city { font-size: 15px; font-weight: 500; }
.nf-avail__status { font-size: 11px; margin-top: 2px; }
.nf-avail__status.is-ok { color: var(--accent); }
.nf-avail__status.is-off { color: var(--fg-3); }
.nf-avail__item.is-off { opacity: 0.55; }

/* CTA */
.nf-cta__inner {
  display: grid; grid-template-columns: minmax(0, 1fr) auto;
  gap: 32px; align-items: center; padding: 36px;
  background: linear-gradient(135deg, color-mix(in oklab, var(--accent) 8%, var(--bg-2)), var(--bg-2) 70%);
}
.nf-cta__inner h2 { font-size: 26px; line-height: 1.15; }
.nf-cta__inner p { margin: 6px 0 0; }
.nf-cta__actions { display: flex; gap: 10px; flex-wrap: wrap; }
@media (max-width: 760px) {
  .nf-cta__inner { grid-template-columns: 1fr; padding: 24px; }
}