:root {
  --bg: #0f1115;
  --panel: #171a21;
  --panel-2: #1f2430;
  --text: #e8edf5;
  --muted: #a8b2c5;
  --accent: #ff5a4f;
  --accent-2: #ffd2ce;
  --border: #2a3140;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
/*
  =============================
  Accessibility: Focus Styles
  =============================
*/
:focus {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/*
  =============================
  End of File
  =============================
*/
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background: radial-gradient(circle at top left, #1a1f2b, var(--bg) 42%);
  color: var(--text);
}

.wrap {
  width: min(1100px, 92vw);
  margin: 0 auto;
  .system-diagram-section {
    /* Container for system diagram, for future extensibility */
  }
  padding: var(--space-lg) 0 var(--space-md);
}
    display: inline-block;
    padding: var(--system-label-padding);
    border-radius: var(--system-label-radius);
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(255, 255, 255, 0.05);
    color: var(--accent-2);
    font-size: 0.72rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

h1 {
    display: inline-flex;
    align-items: center;
    padding: var(--system-label-padding);
    border-radius: var(--system-label-radius);
    border: 1px dashed rgba(255, 255, 255, 0.16);
    color: rgba(232, 237, 245, 0.82);
    font-size: var(--system-font-size);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    background: rgba(255, 255, 255, 0.03);
/*
  text-decoration: none;
  border: 1px solid var(--accent);
    position: relative;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--system-gap);
  font-weight: 700;
}

.btn.alt {
  background: transparent;
  color: var(--accent-2);
}

.grid {
  margin-top: 22px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    /* Decorative only, hide from assistive tech */
    pointer-events: none;
    aria-hidden: true;
  gap: 14px;
}

    position: relative;
    z-index: 1;
    min-height: 120px;
    padding: var(--card-padding);
    border-radius: var(--card-radius);
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.09), rgba(255, 255, 255, 0.025));
    box-shadow: 0 16px 30px rgba(0, 0, 0, 0.22);
  margin: 0;
  font-size: var(--font-size-lg);
}

.card p {
  margin: var(--space-xs) 0 var(--space-sm);
  color: var(--muted);
  line-height: 1.55;
  font-size: var(--font-size-base);
    /* Decorative only, hide from assistive tech */
    pointer-events: none;
    aria-hidden: true;
}

.hero-panel {
  margin-top: var(--space-sm);
}

.audience-grid {
  margin-top: var(--space-sm);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-xs);
}

.mini-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-sm);
}

.mini-card h3 {
  margin: 0 0 8px;
  font-size: 1rem;
}

.mini-card p {
  margin: 0 0 10px;
  color: var(--muted);
  line-height: 1.55;
  font-size: 0.94rem;
}

.arch-diagram {
  position: relative;
  margin-top: 16px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 54px minmax(0, 1fr) 54px minmax(0, 1fr);
  gap: 14px;
  align-items: stretch;
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 18px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0.01)),
    radial-gradient(circle at top left, rgba(255, 90, 79, 0.14), transparent 34%),
    linear-gradient(180deg, rgba(13, 16, 23, 0.92), rgba(22, 27, 36, 0.92));
  overflow: hidden;
}

.arch-diagram::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 28px 28px;
  opacity: 0.35;
  pointer-events: none;
}

.arch-diagram::after {
  content: "SYSTEM ARCHITECTURE";
  position: absolute;
  top: 10px;
  right: 14px;
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  color: rgba(255, 210, 206, 0.72);
}

.arch-node {
  position: relative;
  z-index: 1;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.025));
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 16px;
  padding: 16px 16px 14px;
  min-height: 176px;
  box-shadow: 0 18px 36px rgba(0, 0, 0, 0.28);
}

.arch-node::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  border-radius: 16px 0 0 16px;
  background: linear-gradient(180deg, var(--accent), rgba(255, 210, 206, 0.45));
}

.arch-kicker {
  display: inline-block;
  margin-bottom: 10px;
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-2);
  padding: 4px 8px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
}

.arch-node strong {
  display: block;
  margin-bottom: 10px;
  font-size: 1.06rem;
  line-height: 1.3;
}

.arch-node p {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
  font-size: 0.94rem;
}

.arch-arrow {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 176px;
}

.arch-arrow::before {
  content: "";
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, rgba(255, 90, 79, 0.2), rgba(255, 90, 79, 0.92));
  box-shadow: 0 0 18px rgba(255, 90, 79, 0.24);
}

.arch-arrow::after {
  content: "";
  position: absolute;
  right: 2px;
  width: 12px;
  height: 12px;
  border-top: 2px solid var(--accent);
  border-right: 2px solid var(--accent);
  transform: rotate(45deg);
}

.arch-note {
  margin-top: 14px;
  color: var(--muted);
  line-height: 1.6;
  padding-left: 14px;
  border-left: 2px solid rgba(255, 90, 79, 0.45);
}

.system-diagram {
  position: relative;
  margin-top: 16px;
  padding: 20px;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background:
    radial-gradient(circle at top left, rgba(255, 90, 79, 0.14), transparent 28%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.01)),
    linear-gradient(180deg, #10151d, #171d27);
  overflow: hidden;
}

.system-diagram::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 30px 30px;
  opacity: 0.35;
  pointer-events: none;
}

.system-legend {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 14px;
}

.system-legend-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted);
  font-size: 0.78rem;
}

.system-legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
}

.system-lanes {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 12px;
  margin-bottom: 14px;
}

.system-lane {
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02));
}

.system-lane strong {
  display: block;
  margin-bottom: 6px;
  font-size: 0.95rem;
}

.system-lane p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
  font-size: 0.9rem;
}

.system-meta {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 14px;
}

.system-meta-item {
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.045);
}

.system-meta-label {
  display: block;
  margin-bottom: 4px;
  color: rgba(255, 210, 206, 0.82);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.system-meta-value {
  display: block;
  color: var(--text);
  font-size: 0.9rem;
}

.system-tier {
  position: relative;
  z-index: 1;
  margin-top: 14px;
  padding: 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.025);
}

.system-tier-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 12px;
}

.system-tier::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  border-radius: 18px 0 0 18px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.28));
}

.system-tier:first-child {
  margin-top: 0;
}

.system-tier-label {
  display: inline-block;
  padding: 5px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.05);
  color: var(--accent-2);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.system-boundary {
  display: inline-flex;
  align-items: center;
  padding: 5px 10px;
  border-radius: 999px;
  border: 1px dashed rgba(255, 255, 255, 0.16);
  color: rgba(232, 237, 245, 0.82);
  font-size: 0.73rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: rgba(255, 255, 255, 0.03);
}

.system-row {
  margin: 0 0 8px;
  font-size: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px;
}
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
  font-size: 0.93rem;
  left: 24px;
  right: 24px;
  top: 50%;
@media (max-width: 500px) {
  .system-row {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  .system-box {
    padding: 8px;
    min-height: 80px;
    font-size: 0.95rem;
  }
  .system-tier-label,
  .system-boundary {
    font-size: 0.65rem;
    padding: 4px 7px;
  }
}
  height: 2px;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.05), rgba(255, 90, 79, 0.35), rgba(255, 255, 255, 0.05));
  transform: translateY(-50%);
  box-shadow: 0 0 18px rgba(255, 90, 79, 0.15);
}

.system-box {
  position: relative;
  z-index: 1;
  min-height: 120px;
  padding: 14px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.09), rgba(255, 255, 255, 0.025));
  box-shadow: 0 16px 30px rgba(0, 0, 0, 0.22);
}

.system-box::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  border-radius: 14px 0 0 14px;
  background: linear-gradient(180deg, var(--accent), rgba(255, 210, 206, 0.45));
}

.system-box.client::before,
.system-legend-dot.client {
  background: linear-gradient(180deg, #4fc3ff, #89ddff);
}

.system-box.application::before,
.system-legend-dot.application {
  background: linear-gradient(180deg, #ff8a4f, #ffd2ce);
}

.system-box.data::before,
.system-legend-dot.data {
  background: linear-gradient(180deg, #57d6a4, #b9ffd9);
}

.system-box.integration::before,
.system-legend-dot.integration {
  background: linear-gradient(180deg, #f5c451, #fff0b3);
}

.system-box h3 {
  margin: 0 0 8px;
  font-size: 1rem;
}

.system-box p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
  font-size: 0.93rem;
}

.system-flow {
  position: relative;
  z-index: 1;
  margin: 10px auto 0;
  width: fit-content;
  max-width: 100%;
  padding: 7px 14px;
  border-radius: 999px;
  border: 1px solid rgba(255, 90, 79, 0.28);
  background: rgba(255, 90, 79, 0.08);
  color: var(--accent-2);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.system-flow strong {
  color: var(--text);
  font-weight: 700;
}

.system-flow span {
  color: var(--accent-2);
}

.system-footer {
  position: relative;
  z-index: 1;
  margin-top: 16px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
}

.system-footer-card {
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.035);
}

.system-footer-card strong {
  display: block;
  margin-bottom: 6px;
  font-size: 0.95rem;
}

.system-footer-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
  font-size: 0.9rem;
}

.system-steps {
  position: relative;
  z-index: 1;
  margin-top: 16px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
}

.system-step {
  position: relative;
  padding: 14px 14px 14px 52px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.035);
}

.system-step-number {
  position: absolute;
  left: 14px;
  top: 14px;
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--accent), #ff8a4f);
  color: white;
  font-size: 0.82rem;
  font-weight: 700;
}

.system-step strong {
  display: block;
  margin-bottom: 6px;
  font-size: 0.94rem;
}

.system-step p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
  font-size: 0.9rem;
}

.system-sidepanel {
  position: relative;
  z-index: 1;
  margin-top: 16px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
}

.system-sidepanel-card {
  padding: 14px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02));
}

.system-sidepanel-card strong {
  display: block;
  margin-bottom: 8px;
  font-size: 0.98rem;
}

.system-sidepanel-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
  font-size: 0.9rem;
}

.system-caption {
  position: relative;
  z-index: 1;
  margin-top: 14px;
  color: var(--muted);
  line-height: 1.6;
}

.system-diagram.compact {
  padding: 18px;
}

.system-diagram.compact .system-tier {
  margin-top: 0;
}

.system-diagram.compact .system-box {
  min-height: 136px;
}

.system-diagram.compact .system-flow {
  margin-top: 12px;
}

@media (max-width: 760px) {
  .arch-diagram {
    grid-template-columns: 1fr;
    padding: 16px;
  }

  .arch-arrow {
    min-height: 34px;
  }

  .arch-arrow::before {
    width: 2px;
    height: 100%;
    background: linear-gradient(180deg, rgba(255, 90, 79, 0.2), rgba(255, 90, 79, 0.92));
  }

  .arch-arrow::after {
    right: auto;
    bottom: 2px;
    border-top: 2px solid var(--accent);
    border-right: 2px solid var(--accent);
    transform: rotate(135deg);
  }

  .system-diagram {
    padding: 16px;
  }

  .system-tier {
    padding: 14px;
  }

  .system-diagram.compact {
    padding: 14px;
  }

  .system-legend {
    gap: 8px;
  }

  .system-meta {
    gap: 8px;
  }

  .system-lanes {
    gap: 10px;
  }

  .system-tier-head {
    align-items: flex-start;
  }

  .system-row.connected::before {
    display: none;
  }
}

.link {
  color: var(--accent-2);
  text-decoration: none;
  font-weight: 700;
}

footer {
  margin-top: 22px;
  color: #8f99ad;
  font-size: 0.9rem;
}

article.detail {
  margin-top: 18px;
  background: linear-gradient(180deg, var(--panel), var(--panel-2));
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px;
}

article.detail h2 {
  margin-top: 0;
}

ul.clean {
  margin: 10px 0 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.7;
}

code {
  color: #ffd7c9;
}