:root {
  --bg: #08131a;
  --bg-soft: #10222d;
  --surface: #f4f8fb;
  --surface-muted: #e8f1f6;
  --text-main: #0f2733;
  --text-muted: #4a6776;
  --line: #bed3df;
  --brand: #0e7c86;
  --brand-strong: #085e68;
  --accent: #f18701;
  --shadow: 0 14px 28px rgba(9, 35, 47, 0.12);
  --radius: 18px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  background:
    radial-gradient(circle at 0 0, rgba(241, 135, 1, 0.24), transparent 32%),
    linear-gradient(180deg, #0c1b25 0%, #08131a 70%);
  font-family: "Trebuchet MS", "Segoe UI", "Franklin Gothic Medium", sans-serif;
  color: var(--text-main);
}

.layout {
  display: grid;
  grid-template-columns: 1fr;
  min-height: 100vh;
}

.sidebar {
  border-bottom: 1px solid rgba(190, 211, 223, 0.35);
  padding: 0.85rem 1rem;
  background: rgba(8, 42, 55, 0.66);
  backdrop-filter: blur(8px);
}

.sidebar-title {
  margin: 0;
  text-align: center;
  letter-spacing: 0.18em;
  font-size: 0.72rem;
  font-weight: 700;
  color: #d8ecf6;
}

.header {
  padding: 1.4rem 1rem 0.6rem;
}

.eyebrow {
  margin: 0;
  color: #c8dee8;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: 0.72rem;
  font-weight: 700;
}

.header h1 {
  margin: 0.35rem 0 0;
  line-height: 0.95;
  font-size: clamp(1.8rem, 8vw, 3.2rem);
  font-weight: 900;
  color: var(--surface);
  text-shadow: 0 4px 14px rgba(2, 15, 21, 0.55);
}

.header > p:last-child {
  margin: 0.65rem 0 0;
  color: #d9edf7;
  max-width: 62ch;
}

main {
  padding: 0.8rem 1rem 1.2rem;
  display: grid;
  gap: 1rem;
}

section {
  background: var(--surface);
  border: 1px solid rgba(190, 211, 223, 0.7);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1rem;
}

section h2 {
  margin: 0;
  color: var(--brand-strong);
  font-size: 1.02rem;
  letter-spacing: 0.02em;
}

.section-note {
  margin: 0.45rem 0 0.9rem;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.network-svg {
  width: 100%;
  overflow-x: auto;
}

svg {
  width: 100%;
  height: 180px;
}

.wave {
  stroke: #1898a2;
  stroke-width: 3;
}

.flow-line {
  stroke-dasharray: 10 10;
  animation: flow 1.1s linear infinite;
}

@keyframes flow {
  from {
    stroke-dashoffset: 0;
  }

  to {
    stroke-dashoffset: -40;
  }
}

.node {
  fill: var(--accent);
}

.pulse {
  animation: pulse 1.5s ease-out infinite;
  transform-origin: center;
}

@keyframes pulse {
  0% {
    r: 8;
    opacity: 1;
  }

  70% {
    r: 16;
    opacity: 0;
  }

  100% {
    r: 8;
    opacity: 0;
  }
}

.canvas-wrap {
  width: 100%;
}

canvas {
  display: block;
  width: 100%;
  height: auto;
  background: linear-gradient(180deg, var(--bg-soft), #0b1a23);
  border: 1px solid #1d3f50;
  border-radius: 12px;
}

.over {
  width: 100%;
  height: 215px;
  margin-top: 0.2rem;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #0b1a23;
}

.log-div {
  padding: 0.8rem;
}

.log-line {
  margin: 0 0 0.65rem;
  color: #e6f5ff;
  line-height: 1.5;
  overflow-wrap: anywhere;
}

.log-line strong {
  color: #7ed8df;
  margin-right: 0.25rem;
}

.over::-webkit-scrollbar {
  width: 10px;
}

.over::-webkit-scrollbar-track {
  background: #10222d;
}

.over::-webkit-scrollbar-thumb {
  background: #2d95a0;
  border-radius: 999px;
}

@media (min-width: 768px) {
  .header {
    padding: 2rem 1.5rem 1rem;
  }

  main {
    padding: 1rem 1.5rem 1.5rem;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .network {
    grid-column: 1 / -1;
  }
}

@media (min-width: 1024px) {
  .layout {
    grid-template-columns: 78px 1fr;
    grid-template-rows: auto 1fr;
  }

  .sidebar {
    grid-row: 1 / span 2;
    border-bottom: 0;
    border-right: 1px solid rgba(190, 211, 223, 0.35);
    writing-mode: vertical-lr;
    display: flex;
    justify-content: center;
  }

  .sidebar-title {
    font-size: 0.75rem;
    letter-spacing: 0.23em;
  }

  .header {
    padding: 2.2rem 2rem 1rem;
  }

  main {
    padding: 1rem 2rem 2rem;
  }
}