/* Hardware track-specific components. */
.hw-hero h1 span { background-image: linear-gradient(110deg, var(--amber), var(--cyan), var(--blue)); }
.hw-hero .hero-panel { transform: rotate(-1deg); }
.hw-kicker { color: var(--green); }
.hw-inline-label { color: var(--amber); font: 800 .68rem ui-monospace, monospace; letter-spacing: .1em; text-transform: uppercase; }
.hw-section-note { margin-top: 1rem; padding: 1rem 1.2rem; border-left: 3px solid var(--green); background: var(--surface-2); color: var(--muted); }
.hw-section-note b { color: var(--green); }

.hw-thinking-flow { margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.3rem; list-style: none; }
.hw-thinking-flow li { position: relative; min-height: 205px; padding: 1.1rem; display: flex; flex-direction: column; border: 1px solid var(--line); border-top: 3px solid var(--blue); border-radius: .8rem; background: var(--surface); }
.hw-thinking-flow li:nth-child(n+5) { border-top-color: var(--violet); }
.hw-thinking-flow li:not(:nth-child(4)):not(:last-child)::after { content: "→"; position: absolute; top: 50%; right: -.72rem; z-index: 1; color: var(--blue); transform: translate(50%, -50%); }
.hw-thinking-flow li:nth-child(4)::after { display: none; }
.hw-thinking-flow span { color: var(--amber); font: 800 .7rem ui-monospace, monospace; }
.hw-thinking-flow strong { margin: .9rem 0 .45rem; }
.hw-thinking-flow p { margin: 0; color: var(--muted); font-size: .8rem; }
.hw-thinking-flow small { margin-top: auto; padding-top: .8rem; color: var(--green); }

.hw-triangle-layout { display: grid; grid-template-columns: 1fr .9fr; gap: 1rem; align-items: stretch; }
.hw-triangle { position: relative; min-height: 470px; border: 1px solid var(--line); border-radius: 1rem; background: radial-gradient(circle at 50% 52%, rgba(104,167,255,.1), transparent 13rem), var(--surface); }
.hw-triangle::before, .hw-triangle::after { content: ""; position: absolute; top: 47%; left: 50%; width: 55%; height: 1px; background: color-mix(in srgb, var(--blue) 42%, var(--line)); transform-origin: left; }
.hw-triangle::before { transform: rotate(148deg); }
.hw-triangle::after { transform: rotate(32deg); }
.hw-metric { position: absolute; z-index: 2; width: 170px; min-height: 135px; padding: 1rem; display: grid; align-content: center; text-align: center; border: 1px solid var(--line); border-radius: .9rem; background: var(--surface-2); box-shadow: var(--shadow); }
.hw-metric b { color: var(--blue); font-size: 1.2rem; }
.hw-metric span { color: var(--muted); font-size: .76rem; }
.hw-metric small { margin-top: .4rem; color: var(--green); }
.hw-metric.hw-latency { top: 1.3rem; left: 50%; transform: translateX(-50%); }
.hw-metric.hw-throughput { bottom: 1.3rem; left: 1.3rem; }
.hw-metric.hw-bandwidth { right: 1.3rem; bottom: 1.3rem; }
.hw-triangle-center { position: absolute; top: 51%; left: 50%; z-index: 3; width: 145px; padding: .8rem; border: 1px solid color-mix(in srgb, var(--amber) 45%, var(--line)); border-radius: 50%; background: var(--bg); text-align: center; transform: translate(-50%, -50%); }
.hw-triangle-center b { display: block; color: var(--amber); }
.hw-triangle-center small { color: var(--muted); }
.hw-metric-rules { display: grid; gap: .7rem; }
.hw-metric-rules article { padding: 1.1rem; border-left: 3px solid var(--cyan); background: var(--surface); }
.hw-metric-rules article:nth-child(2) { border-left-color: var(--amber); }
.hw-metric-rules article:nth-child(3) { border-left-color: var(--violet); }
.hw-metric-rules article:nth-child(4) { border-left-color: var(--green); }
.hw-metric-rules strong { display: block; margin-bottom: .3rem; }
.hw-metric-rules p { margin: 0; color: var(--muted); font-size: .8rem; }
.hw-formula { color: var(--blue-2); font-family: ui-monospace, monospace; }

.hw-constraint-compass { display: grid; grid-template-columns: repeat(4, 1fr); gap: .75rem; }
.hw-constraint-compass article { min-height: 195px; padding: 1.1rem; display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: .8rem; background: var(--surface); }
.hw-constraint-compass article:nth-child(1) { border-top: 3px solid var(--blue); }
.hw-constraint-compass article:nth-child(2) { border-top: 3px solid var(--amber); }
.hw-constraint-compass article:nth-child(3) { border-top: 3px solid var(--green); }
.hw-constraint-compass article:nth-child(4) { border-top: 3px solid var(--violet); }
.hw-constraint-compass span { color: var(--amber); font: 800 .7rem ui-monospace, monospace; text-transform: uppercase; }
.hw-constraint-compass strong { margin: .75rem 0 .4rem; font-size: 1.1rem; }
.hw-constraint-compass p { margin: 0; color: var(--muted); font-size: .78rem; }
.hw-constraint-compass small { margin-top: auto; padding-top: .8rem; color: var(--green); }
.hw-tradeoff-line { margin-top: .8rem; padding: 1.1rem; display: grid; grid-template-columns: auto 1fr auto 1fr auto 1fr auto; gap: .7rem; align-items: center; border: 1px solid var(--line); border-radius: .8rem; background: var(--surface-2); text-align: center; }
.hw-tradeoff-line b { color: var(--blue); }
.hw-tradeoff-line i { color: var(--violet); font-style: normal; }
.hw-tradeoff-line span { color: var(--muted); font-size: .78rem; }

.hw-memory-layout { display: grid; grid-template-columns: .82fr 1.18fr; gap: 1rem; align-items: stretch; }
.hw-memory-pyramid { margin: 0; padding: 1.2rem; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); align-content: start; gap: .55rem; border: 1px solid var(--line); border-radius: 1rem; background: var(--surface-2); list-style: none; }
.hw-memory-pyramid li { min-height: 88px; padding: .8rem; display: grid; align-content: center; gap: .35rem; border: 1px solid var(--line); border-left: 3px solid var(--blue); border-radius: .65rem; background: var(--surface); }
.hw-memory-pyramid li:nth-child(3), .hw-memory-pyramid li:nth-child(4) { border-left-color: var(--cyan); }
.hw-memory-pyramid li:nth-child(5) { border-left-color: var(--amber); }
.hw-memory-pyramid li:nth-child(6) { border-left-color: var(--violet); }
.hw-memory-pyramid b { font-size: .84rem; }
.hw-memory-pyramid span { color: var(--muted); font-size: .68rem; }
.hw-memory-rules { display: grid; grid-template-columns: repeat(2, 1fr); gap: .7rem; }
.hw-memory-rules article { padding: 1rem; border: 1px solid var(--line); border-radius: .75rem; background: var(--surface); }
.hw-memory-rules span { color: var(--violet); font-size: .7rem; font-weight: 800; text-transform: uppercase; }
.hw-memory-rules strong { display: block; margin: .55rem 0 .35rem; }
.hw-memory-rules p { margin: 0; color: var(--muted); font-size: .77rem; }

.hw-roofline { margin-top: 1rem; padding: 1.3rem; display: grid; grid-template-columns: .72fr 1.28fr; gap: 2rem; border: 1px solid var(--line); border-radius: 1rem; background: var(--surface); }
.hw-roofline-copy p { color: var(--muted); font-size: .85rem; }
.hw-roofline-copy dl { margin: 1rem 0 0; display: grid; grid-template-columns: auto 1fr; gap: .45rem .8rem; }
.hw-roofline-copy dt { color: var(--blue); font-weight: 800; }
.hw-roofline-copy dd { margin: 0; color: var(--muted); font-size: .78rem; }
.hw-roofline-plot { position: relative; min-height: 320px; margin: 1rem 1rem 2.4rem 3.2rem; border-left: 2px solid var(--muted); border-bottom: 2px solid var(--muted); background: linear-gradient(rgba(104,167,255,.045) 1px, transparent 1px), linear-gradient(90deg, rgba(104,167,255,.045) 1px, transparent 1px); background-size: 20% 20%; }
.hw-roofline-plot::before { content: "attainable performance"; position: absolute; left: -3.3rem; top: 50%; color: var(--muted); font-size: .68rem; transform: rotate(-90deg) translateX(-50%); transform-origin: top left; }
.hw-roofline-plot::after { content: "arithmetic intensity →"; position: absolute; left: 50%; bottom: -2.1rem; color: var(--muted); font-size: .68rem; transform: translateX(-50%); }
.hw-roofline-bandwidth { position: absolute; left: 4%; bottom: 5%; width: 63%; height: 3px; background: var(--cyan); transform: rotate(-32deg); transform-origin: left; }
.hw-roofline-ceiling { position: absolute; top: 20%; right: 4%; width: 48%; height: 3px; background: var(--amber); }
.hw-roofline-label { position: absolute; padding: .28rem .45rem; border-radius: .35rem; background: var(--bg); font-size: .67rem; }
.hw-roofline-label.hw-memory-bound { left: 16%; bottom: 31%; color: var(--cyan); transform: rotate(-32deg); }
.hw-roofline-label.hw-compute-bound { top: 12%; right: 17%; color: var(--amber); }
.hw-roofline-dot { position: absolute; width: 13px; height: 13px; border: 3px solid var(--surface); border-radius: 50%; background: var(--violet); box-shadow: 0 0 0 2px var(--violet); }
.hw-roofline-dot.hw-dot-a { left: 28%; bottom: 26%; }
.hw-roofline-dot.hw-dot-b { left: 68%; top: 28%; background: var(--green); box-shadow: 0 0 0 2px var(--green); }
.hw-roofline-dot small { position: absolute; top: 14px; left: -12px; width: 95px; color: var(--muted); font-size: .62rem; }

.hw-choice-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: .7rem; }
.hw-choice-grid article { min-height: 225px; padding: 1.05rem; display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: .8rem; background: var(--surface); }
.hw-choice-grid span { color: var(--amber); font: 800 .68rem ui-monospace, monospace; text-transform: uppercase; }
.hw-choice-grid h3 { margin: .75rem 0 .45rem; }
.hw-choice-grid p { margin: 0; color: var(--muted); font-size: .78rem; }
.hw-choice-grid small { margin-top: auto; padding-top: .9rem; color: var(--green); }
.hw-dataflow-grid { margin-top: .8rem; display: grid; grid-template-columns: repeat(3, 1fr); gap: .7rem; }
.hw-dataflow-grid article { padding: 1.1rem; border-top: 3px solid var(--violet); background: var(--surface-2); }
.hw-dataflow-grid article:nth-child(2) { border-top-color: var(--cyan); }
.hw-dataflow-grid article:nth-child(3) { border-top-color: var(--green); }
.hw-dataflow-grid strong { display: block; }
.hw-dataflow-grid p { margin: .45rem 0; color: var(--muted); font-size: .78rem; }
.hw-dataflow-grid small { color: var(--blue-2); }

.hw-system-map { padding: 1.4rem; display: grid; grid-template-columns: 1fr auto 1.3fr auto 1fr; gap: .8rem; align-items: center; border: 1px solid var(--line); border-radius: 1rem; background: linear-gradient(145deg, var(--surface-2), var(--surface)); }
.hw-system-map > b { color: var(--blue); font-size: 1.35rem; }
.hw-map-stack { display: grid; gap: .55rem; }
.hw-map-node { padding: .9rem; border: 1px solid var(--line); border-radius: .65rem; background: var(--surface); text-align: center; }
.hw-map-node strong { display: block; }
.hw-map-node small { color: var(--muted); }
.hw-map-center { padding: 1.3rem; border: 1px solid color-mix(in srgb, var(--cyan) 45%, var(--line)); border-radius: .85rem; background: color-mix(in srgb, var(--cyan) 7%, var(--surface)); text-align: center; }
.hw-map-center span { color: var(--cyan); font: 800 .7rem ui-monospace, monospace; text-transform: uppercase; }
.hw-map-center strong { display: block; margin: .4rem 0; font-size: 1.15rem; }
.hw-map-center p { margin: 0; color: var(--muted); font-size: .75rem; }
.hw-io-grid { margin-top: .8rem; display: grid; grid-template-columns: repeat(3, 1fr); gap: .7rem; }
.hw-io-grid article { padding: 1rem; border-left: 3px solid var(--blue); background: var(--surface); }
.hw-io-grid article:nth-child(3n+2) { border-left-color: var(--amber); }
.hw-io-grid article:nth-child(3n) { border-left-color: var(--green); }
.hw-io-grid span { color: var(--violet); font-size: .68rem; font-weight: 800; text-transform: uppercase; }
.hw-io-grid strong { display: block; margin: .45rem 0; }
.hw-io-grid p { margin: 0; color: var(--muted); font-size: .77rem; }

.hw-physical-chain { margin: 0; padding: 0; display: grid; grid-template-columns: repeat(5, 1fr); gap: 1.2rem; list-style: none; }
.hw-physical-chain li { position: relative; min-height: 165px; padding: 1rem; display: flex; flex-direction: column; border-top: 3px solid var(--amber); background: var(--surface); }
.hw-physical-chain li:not(:last-child)::after { content: "→"; position: absolute; top: 50%; right: -.8rem; color: var(--amber); transform: translate(50%, -50%); }
.hw-physical-chain span { color: var(--amber); font: 800 .67rem ui-monospace, monospace; }
.hw-physical-chain strong { margin: .7rem 0 .35rem; }
.hw-physical-chain small { margin-top: auto; color: var(--muted); }
.hw-resilience-grid { margin-top: .8rem; display: grid; grid-template-columns: repeat(4, 1fr); gap: .7rem; }
.hw-resilience-grid article { padding: 1rem; border: 1px solid var(--line); border-radius: .75rem; background: var(--surface-2); }
.hw-resilience-grid span { color: var(--green); font-size: .68rem; font-weight: 800; text-transform: uppercase; }
.hw-resilience-grid strong { display: block; margin: .5rem 0; }
.hw-resilience-grid p { margin: 0; color: var(--muted); font-size: .77rem; }

.hw-bottleneck-table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 1rem; background: var(--surface); }
.hw-bottleneck-table { width: 100%; min-width: 900px; border-collapse: collapse; }
.hw-bottleneck-table caption { padding: 1rem; color: var(--muted); text-align: left; }
.hw-bottleneck-table th, .hw-bottleneck-table td { padding: .85rem 1rem; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.hw-bottleneck-table thead th { color: var(--amber); background: var(--surface-2); font-size: .76rem; letter-spacing: .08em; text-transform: uppercase; }
.hw-bottleneck-table tbody th { color: var(--text); background: transparent; font-size: .8rem; font-weight: 800; }
.hw-bottleneck-table td { color: var(--muted); font-size: .77rem; }
.hw-bottleneck-table tr:last-child th, .hw-bottleneck-table tr:last-child td { border-bottom: 0; }
.hw-diagnose-flow { margin-top: .8rem; padding: 1rem; display: grid; grid-template-columns: repeat(5, 1fr); gap: 1.1rem; border: 1px solid var(--line); border-radius: .8rem; background: var(--surface-2); }
.hw-diagnose-flow div { position: relative; padding: .8rem; background: var(--surface); }
.hw-diagnose-flow div:not(:last-child)::after { content: "→"; position: absolute; top: 50%; right: -.75rem; color: var(--blue); transform: translate(50%, -50%); }
.hw-diagnose-flow b { color: var(--blue); }
.hw-diagnose-flow small { display: block; color: var(--muted); }

.hw-case-brief { padding: clamp(1.2rem, 3vw, 2rem); display: grid; grid-template-columns: 1.15fr .85fr; gap: 2rem; align-items: center; border: 1px solid color-mix(in srgb, var(--amber) 38%, var(--line)); border-radius: 1rem; background: radial-gradient(circle at 90% 20%, rgba(243,180,81,.12), transparent 18rem), var(--surface); }
.hw-case-brief h3 { margin: .45rem 0; font-size: clamp(1.5rem, 3vw, 2.25rem); }
.hw-case-brief p { margin: 0; color: var(--muted); }
.hw-case-signals { margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: .45rem; list-style: none; }
.hw-case-signals li { padding: .5rem .7rem; border: 1px solid color-mix(in srgb, var(--amber) 35%, var(--line)); border-radius: 999px; background: color-mix(in srgb, var(--amber) 8%, transparent); font-size: .75rem; font-weight: 750; }
.hw-case-flow { margin: .8rem 0 0; padding: 1rem; display: grid; grid-template-columns: minmax(280px, .7fr) minmax(0, 1.3fr); gap: 1rem; align-items: stretch; border: 1px solid var(--line); border-radius: 1rem; background: var(--surface-2); }
.hw-case-flow-source { display: grid; grid-template-columns: 1fr auto 1fr; gap: .6rem; align-items: center; }
.hw-case-flow-source > i { color: var(--blue); font-style: normal; }
.hw-case-flow-branches { display: grid; gap: .7rem; }
.hw-case-branch { padding: .75rem; border: 1px solid var(--line); border-left: 3px solid var(--cyan); border-radius: .7rem; background: var(--surface); }
.hw-case-branch:last-child { border-left-color: var(--amber); }
.hw-case-branch > span { display: block; margin-bottom: .6rem; color: var(--green); font: 800 .66rem ui-monospace, monospace; letter-spacing: .06em; text-transform: uppercase; }
.hw-case-branch ol { margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .9rem; list-style: none; }
.hw-case-branch:last-child ol { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.hw-case-node, .hw-case-branch li { position: relative; min-height: 88px; padding: .7rem; display: grid; place-content: center; text-align: center; border: 1px solid var(--line); border-radius: .55rem; background: var(--surface); }
.hw-case-branch li:not(:last-child)::after { content: "→"; position: absolute; top: 50%; right: -.58rem; z-index: 1; color: var(--blue); transform: translate(50%, -50%); }
.hw-case-flow b { color: var(--blue); }
.hw-case-flow small { color: var(--muted); }
.hw-case-flow figcaption { grid-column: 1 / -1; color: var(--muted); font-size: .75rem; }
.hw-case-checkpoints { margin: .8rem 0 0; padding: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: .7rem; list-style: none; }
.hw-case-checkpoints > li { padding: 1.1rem; border: 1px solid var(--line); border-radius: .8rem; background: var(--surface); }
.hw-case-checkpoints header { display: flex; gap: .8rem; align-items: baseline; }
.hw-case-checkpoints header span { color: var(--amber); font: 800 .68rem ui-monospace, monospace; }
.hw-case-checkpoints p { color: var(--muted); font-size: .8rem; }
.hw-case-checkpoints details { border-top: 1px solid var(--line); }
.hw-case-checkpoints summary { padding-top: .75rem; color: var(--blue-2); cursor: pointer; font-weight: 750; }
.hw-case-checkpoints details div { padding-top: .65rem; color: var(--muted); font-size: .8rem; }
.hw-pressure-grid { margin-top: .8rem; display: grid; grid-template-columns: repeat(4, 1fr); gap: .7rem; }
.hw-pressure-grid article { padding: 1rem; border-top: 2px solid var(--violet); background: var(--surface-2); }
.hw-pressure-grid span { color: var(--violet); font-size: .7rem; font-weight: 800; text-transform: uppercase; }
.hw-pressure-grid p { margin: .45rem 0 0; color: var(--muted); font-size: .77rem; }

.hw-source-grid, .hw-track-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: .7rem; }
.hw-source-grid article, .hw-track-grid a { min-height: 170px; padding: 1rem; display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: .75rem; background: var(--surface); text-decoration: none; }
.hw-source-grid span, .hw-track-grid span { color: var(--amber); font: 800 .68rem ui-monospace, monospace; text-transform: uppercase; }
.hw-source-grid strong, .hw-track-grid strong { margin: .65rem 0 .4rem; }
.hw-source-grid p, .hw-track-grid small { margin: 0; color: var(--muted); font-size: .77rem; }
.hw-source-grid a { margin-top: auto; padding-top: .8rem; color: var(--blue-2); text-decoration: none; font-weight: 750; }
.hw-track-grid { margin-top: 1rem; }
.hw-track-grid a:hover { border-color: var(--blue); transform: translateY(-2px); }
nav a[aria-current="page"] { color: var(--text); }

@media (max-width: 1000px) {
  .hw-thinking-flow, .hw-choice-grid, .hw-constraint-compass, .hw-resilience-grid { grid-template-columns: repeat(2, 1fr); }
  .hw-thinking-flow li::after { display: none; }
  .hw-triangle-layout, .hw-memory-layout, .hw-roofline, .hw-case-brief { grid-template-columns: 1fr; }
  .hw-system-map { grid-template-columns: 1fr; }
  .hw-system-map > b { transform: rotate(90deg); text-align: center; }
  .hw-case-flow { grid-template-columns: 1fr; }
  .hw-source-grid, .hw-track-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 700px) {
  .hw-triangle { min-height: auto; padding: 1rem; display: grid; gap: .7rem; }
  .hw-triangle::before, .hw-triangle::after { display: none; }
  .hw-metric, .hw-metric.hw-latency, .hw-metric.hw-throughput, .hw-metric.hw-bandwidth, .hw-triangle-center { position: static; width: auto; min-height: auto; transform: none; }
  .hw-triangle-center { border-radius: .8rem; }
  .hw-tradeoff-line { grid-template-columns: 1fr; }
  .hw-tradeoff-line i { transform: rotate(90deg); }
  .hw-memory-rules, .hw-dataflow-grid, .hw-io-grid, .hw-case-checkpoints, .hw-pressure-grid { grid-template-columns: 1fr; }
  .hw-physical-chain, .hw-diagnose-flow { grid-template-columns: 1fr; }
  .hw-physical-chain li::after, .hw-diagnose-flow div::after { display: none; }
  .hw-case-flow-source, .hw-case-branch ol, .hw-case-branch:last-child ol { grid-template-columns: 1fr; }
  .hw-case-flow-source > i, .hw-case-branch li::after { display: none; }
}
@media (max-width: 520px) {
  .hw-thinking-flow, .hw-choice-grid, .hw-constraint-compass, .hw-resilience-grid, .hw-source-grid, .hw-track-grid, .hw-memory-pyramid { grid-template-columns: 1fr; }
  .hw-roofline-plot { min-height: 250px; margin-left: 2.6rem; }
}