:root {
  --bg:        #080808;
  --bg2:       #0d0d0d;
  --ir:        #c850ff;
  --ir-dim:    #6e1d96;
  --amber:     #ffb020;
  --amber-dim: #7a5000;
  --white:     #e8e8e8;
  --muted:     #555;
  --border:    #1f1f1f;
  --glow-ir:   0 0 18px #c850ff88, 0 0 60px #c850ff33;
  --glow-amb:  0 0 18px #ffb02088, 0 0 60px #ffb02033;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: var(--bg2);
}
::-webkit-scrollbar-thumb {
  background: var(--ir-dim);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--ir);
}
body {
  background: var(--bg);
  color: var(--white);
  font-family: 'DM Sans', sans-serif;
  overflow-x: hidden;
}

/* ─── SCANLINES ──────────────────────────────────────── */
body::before {
  content: '';
  position: fixed; inset: 0; z-index: 9000;
  pointer-events: none;
  background: repeating-linear-gradient(
    0deg, transparent, transparent 2px,
    rgba(0,0,0,.15) 2px, rgba(0,0,0,.15) 4px
  );
}

/* ─── NOISE ─────────────────────────────────────────── */
body::after {
  content: '';
  position: fixed; inset: 0; z-index: 8999;
  pointer-events: none;
  opacity: .04;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 200px;
}

/* ─── GRID BG ────────────────────────────────────────── */
.grid-bg {
  position: fixed; inset: 0; z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(200,80,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(200,80,255,.04) 1px, transparent 1px);
  background-size: 48px 48px;
  animation: grid-drift 30s linear infinite;
}
@keyframes grid-drift {
  from { background-position: 0 0; }
  to   { background-position: 48px 48px; }
}

/* ─── HERO ──────────────────────────────────────────── */
#hero {
  position: relative; z-index: 1;
  min-height: 100vh;
  min-height: 100svh;
  display: flex; flex-direction: column;
  justify-content: center; align-items: flex-start;
  padding: clamp(3rem, 4vh, 4rem) 10vw clamp(3rem, 4vh, 4rem);
  overflow: hidden;
}

#hero-three-bg {
  position: absolute; inset: 0; z-index: 0;
  pointer-events: none;
}

.hero-inner {
  position: relative; z-index: 1;
  display: flex; gap: 4vw;
  width: 100%; align-items: center;
}

.hero-text {
  flex: 1; min-width: 0;
}

.hero-panel {
  width: 600px; flex-shrink: 0;
  background: rgba(13,13,13,.85);
  border: 1px solid var(--border);
  backdrop-filter: blur(12px);
  border-radius: 10px;
  overflow: hidden;
  opacity: 0; animation: fade-up .9s .4s forwards;
}

.panel-tabs {
  display: flex; border-bottom: 1px solid var(--border);
  background: rgba(0,0,0,.3);
}
.panel-tab {
  flex: 1; font-family: 'Share Tech Mono', monospace;
  font-size: .7rem; letter-spacing: .12em;
  padding: .75rem .5rem; text-transform: uppercase;
  background: none; border: none; cursor: pointer;
  color: var(--muted); border-bottom: 2px solid transparent;
  transition: color .2s, border-color .2s, background .2s;
}
.panel-tab:hover { color: var(--white); background: rgba(200,80,255,.04); }
.panel-tab.active { color: var(--ir); border-bottom-color: var(--ir); }

.panel-content { height: 420px; overflow: hidden; position: relative; }
.tab-content {
  display: none; height: 100%;
  overflow-y: auto;
}
.tab-content.active { display: block; }
.tab-content::-webkit-scrollbar {
  width: 6px;
}
.tab-content::-webkit-scrollbar-track {
  background: var(--bg2);
}
.tab-content::-webkit-scrollbar-thumb {
  background: var(--ir-dim);
  border-radius: 3px;
}
.tab-content::-webkit-scrollbar-thumb:hover {
  background: var(--ir);
}
.tab-body {
  font-family: 'Share Tech Mono', monospace;
  font-size: .75rem; color: var(--muted); line-height: 1.7;
  padding: 1rem;
}

.bom-table { width: 100%; border-collapse: collapse; }
.bom-table th {
  font-size: .6rem; letter-spacing: .12em; text-transform: uppercase;
  color: var(--ir); text-align: left;
  padding: .35rem .5rem; border-bottom: 1px solid var(--border);
  font-weight: 400;
}
.bom-table td {
  padding: .3rem .5rem; border-bottom: 1px solid var(--border);
  color: var(--muted); font-size: .7rem;
}
.bom-table tr:hover td { color: var(--white); }
.bom-ref { color: var(--amber); }
.bom-val { color: var(--white); }

.tab-placeholder {
  height: 100%; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: .8rem;
  text-align: center; color: var(--muted);
  background: rgba(0,0,0,.3); border: 1px dashed var(--border2);
  border-radius: 6px; padding: 1rem;
}
.tab-placeholder i { font-size: 2rem; color: var(--ir-dim); display: block; }
.tab-placeholder .hint { font-size: .65rem; letter-spacing: .15em; text-transform: uppercase; opacity: .6; }

kicanvas-embed { display: block; width: 100%; height: 100%; }
.sch-toolbar {
  display: flex; align-items: center; gap: 6px;
  padding: 4px 10px;
  background: rgba(0,0,0,.3); border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.sch-btn {
  background: none; border: 1px solid var(--border); color: var(--muted);
  padding: 2px 6px; cursor: pointer; border-radius: 4px;
  display: inline-flex; align-items: center;
  font-size: .8rem; line-height: 1;
  transition: color .2s, border-color .2s;
}
.sch-btn:hover { color: var(--white); border-color: var(--ir); }
.sch-current {
  flex: 1; text-align: center;
  font-family: 'Share Tech Mono', monospace;
  font-size: .65rem; letter-spacing: .15em;
  color: var(--ir); text-transform: uppercase;
}

.hero-eyebrow {
  font-family: 'Share Tech Mono', monospace;
  font-size: .75rem; letter-spacing: .3em;
  color: var(--ir); text-transform: uppercase;
  margin-bottom: 1rem;
  opacity: 0; animation: fade-up .8s .2s forwards;
}
.hero-eyebrow::before { content: '> '; }

.hero-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(3.25rem, 9vw, 8rem);
  line-height: .86; letter-spacing: -.015em;
  color: var(--white);
  opacity: 0; animation: fade-up .9s .4s forwards;
}
.hero-title span { color: var(--ir); text-shadow: var(--glow-ir); }

.hero-sub {
  font-family: 'Share Tech Mono', monospace;
  font-size: clamp(.8rem, 1.5vw, 1.1rem);
  color: var(--muted);
  margin-top: 1rem; max-width: 480px; line-height: 1.65;
  opacity: 0; animation: fade-up .9s .6s forwards;
}

.hero-cta {
  margin-top: 2rem;
  display: flex; gap: 1rem; flex-wrap: wrap;
  opacity: 0; animation: fade-up .9s .8s forwards;
}

.hero-github {
  margin-top: 1rem;
  opacity: 0; animation: fade-up .9s 1.0s forwards;
}
.hero-github a {
  font-family: 'Share Tech Mono', monospace;
  font-size: .75rem; letter-spacing: .15em;
  color: var(--muted); text-decoration: none;
  display: inline-flex; align-items: center; gap: .5rem;
  transition: color .25s;
}
.hero-github a:hover { color: var(--ir); }
.hero-github a i { font-size: 1rem; }

.btn {
  font-family: 'Share Tech Mono', monospace;
  font-size: .85rem; letter-spacing: .12em;
  text-transform: uppercase; text-decoration: none;
  padding: .9rem 2.2rem; border: 1px solid;
  position: relative; overflow: hidden;
  transition: color .3s; display: inline-block;
}
.btn::before {
  content: '';
  position: absolute; inset: 0;
  transform: translateX(-100%);
  transition: transform .35s cubic-bezier(.4,0,.2,1);
}
.btn:hover::before { transform: translateX(0); }
.btn:hover { color: var(--bg); }
.btn-primary { border-color: var(--ir); color: var(--ir); box-shadow: var(--glow-ir); }
.btn-primary::before { background: var(--ir); }
.btn-ghost { border-color: var(--muted); color: var(--muted); }
.btn-ghost::before { background: var(--muted); }

@keyframes fade-up {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

.scroll-hint {
  position: absolute; bottom: 1.35rem; left: 50%;
  transform: translateX(-50%);
  font-family: 'Share Tech Mono', monospace;
  font-size: .65rem; letter-spacing: .25em;
  color: var(--muted);
  display: flex; flex-direction: column; align-items: center; gap: .6rem;
  animation: fade-up 1s 1.4s both;
}
.scroll-hint::after {
  content: '';
  width: 1px; height: 40px;
  background: linear-gradient(var(--ir), transparent);
  animation: line-drop 1.6s ease-in-out infinite;
}
@keyframes line-drop {
  0%,100% { transform: scaleY(0); transform-origin: top; }
  50%      { transform: scaleY(1); }
}

/* ─── SECTIONS ───────────────────────────────────────── */
section {
  position: relative; z-index: 1;
  padding: 8rem 10vw;
}
section + section { border-top: 1px solid var(--border); }

.section-label {
  font-family: 'Share Tech Mono', monospace;
  font-size: .7rem; letter-spacing: .35em;
  color: var(--ir); text-transform: uppercase;
  margin-bottom: 1rem;
  display: flex; align-items: center; gap: .8rem;
}
.section-label::after {
  content: ''; flex: 1; max-width: 80px;
  height: 1px; background: var(--ir-dim);
}

.section-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(2.5rem, 6vw, 5.5rem);
  line-height: 1; color: var(--white); margin-bottom: 2rem;
}

.reveal {
  opacity: 0; transform: translateY(40px);
  transition: opacity .7s cubic-bezier(.4,0,.2,1), transform .7s cubic-bezier(.4,0,.2,1);
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-left  { opacity: 0; transform: translateX(-50px); transition: opacity .7s .1s cubic-bezier(.4,0,.2,1), transform .7s .1s cubic-bezier(.4,0,.2,1); }
.reveal-left.visible  { opacity: 1; transform: translateX(0); }
.reveal-right { opacity: 0; transform: translateX(50px);  transition: opacity .7s .2s cubic-bezier(.4,0,.2,1), transform .7s .2s cubic-bezier(.4,0,.2,1); }
.reveal-right.visible { opacity: 1; transform: translateX(0); }

/* ─── TICKER ─────────────────────────────────────────── */
.ticker-wrap {
  overflow: hidden; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
  padding: 1rem 0; background: var(--bg2);
  position: relative; z-index: 1;
}
.ticker { display: flex; gap: 0; animation: ticker 24s linear infinite; white-space: nowrap; }
.ticker-item {
  font-family: 'Share Tech Mono', monospace;
  font-size: .75rem; letter-spacing: .15em;
  color: var(--muted); padding: 0 3rem; text-transform: uppercase;
}
.ticker-item span { color: var(--ir); margin-right: .6rem; }
@keyframes ticker {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ─── ARCHITECTURE ───────────────────────────────────── */
#architecture { background: var(--bg2); }

.arch-diagram {
  margin-top: 3rem;
  display: grid; grid-template-columns: 1fr 60px 1fr;
  gap: 0; align-items: center;
}
.arch-box {
  border: 1px solid var(--border); padding: 2rem;
  position: relative; background: var(--bg);
  transition: border-color .3s, box-shadow .3s;
}
.arch-box:hover { border-color: var(--ir); box-shadow: inset 0 0 30px rgba(200,80,255,.05), var(--glow-ir); }
.arch-box-title {
  font-family: 'Share Tech Mono', monospace;
  font-size: .65rem; letter-spacing: .25em;
  color: var(--ir); text-transform: uppercase; margin-bottom: 1rem;
}
.arch-box-title::before { content: '[ '; }
.arch-box-title::after  { content: ' ]'; }
.arch-item {
  font-family: 'Share Tech Mono', monospace;
  font-size: .8rem; color: var(--muted);
  padding: .4rem 0; border-bottom: 1px solid var(--border);
  transition: color .2s, padding-left .2s;
}
.arch-item:last-child { border-bottom: none; }
.arch-box:hover .arch-item { color: var(--white); }
.arch-box:hover .arch-item:hover { color: var(--ir); padding-left: .5rem; }
.arch-item::before { content: '→ '; color: var(--ir-dim); }

.arch-arrow {
  display: flex; flex-direction: column; align-items: center;
  gap: .7rem; font-family: 'Share Tech Mono', monospace;
  font-size: .6rem; color: var(--muted); letter-spacing: .18em; text-transform: uppercase;
}
.arch-arrow-line {
  width: 1px; height: 56px;
  background: linear-gradient(var(--ir), var(--ir-dim));
  position: relative; animation: data-flow 1.5s ease-in-out infinite;
}
@keyframes data-flow {
  0%,100% { opacity: .4; }
  50%      { opacity: 1;  }
}
.arch-arrow-line::after { content: none; }

.arch-bottom {
  margin-top: 2rem; border: 1px solid var(--ir-dim);
  padding: 1.5rem 2rem; background: rgba(200,80,255,.03);
  display: flex; align-items: center; gap: 2rem;
  position: relative; overflow: hidden;
}
.arch-bottom::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--ir), transparent);
  animation: sweep 3s ease-in-out infinite;
}
@keyframes sweep { from { transform: translateX(-100%); } to { transform: translateX(100%); } }

.ir-matrix-label { font-family: 'Bebas Neue', sans-serif; font-size: 1.4rem; color: var(--ir); letter-spacing: .05em; }
.ir-leds { display: flex; gap: 8px; flex-wrap: wrap; }
.ir-led {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--ir); box-shadow: var(--glow-ir);
  animation: led-blink 2s ease-in-out infinite;
}
.ir-led:nth-child(2n) { animation-delay: .3s; }
.ir-led:nth-child(3n) { animation-delay: .6s; }
.ir-led:nth-child(4n) { animation-delay: .9s; }
.ir-led:nth-child(5n) { animation-delay: 1.2s; }
@keyframes led-blink {
  0%,100% { opacity: .3; box-shadow: none; }
  50%      { opacity: 1;  box-shadow: var(--glow-ir); }
}

/* ─── FEATURES ───────────────────────────────────────── */
.features-grid {
  margin-top: 3rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}
.feature-card {
  background: var(--bg); padding: 2.5rem 2rem;
  position: relative; overflow: hidden;
  transition: background .3s;
}
.feature-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: var(--ir); transform: scaleX(0); transform-origin: left;
  transition: transform .4s cubic-bezier(.4,0,.2,1);
}
.feature-card:hover { background: rgba(200,80,255,.03); }
.feature-card:hover::before { transform: scaleX(1); }

.feature-icon {
  font-size: 1.4rem; margin-bottom: 1.2rem;
  color: var(--ir);
  filter: drop-shadow(0 0 8px var(--ir));
  display: block;
}
.feature-name { font-family: 'Bebas Neue', sans-serif; font-size: 1.3rem; color: var(--white); margin-bottom: .5rem; }
.feature-desc { font-size: .85rem; color: var(--muted); line-height: 1.7; }
.feature-num {
  position: absolute;
  bottom: 1.5rem;
  right: 1.5rem;
  font-family: 'Share Tech Mono', monospace;
  font-size: .6rem;
  color: var(--ir);
  letter-spacing: .2em;
  text-shadow: 0 0 4px rgba(200, 80, 255, 0.4);
}

/* ─── PROTOCOL ───────────────────────────────────────── */
#protocol { background: var(--bg2); }

.protocol-vis { margin-top: 3rem; font-family: 'Share Tech Mono', monospace; }
.proto-row { display: flex; align-items: center; gap: 1rem; margin-bottom: 1.8rem; }
.proto-label { font-size: .7rem; color: var(--muted); letter-spacing: .15em; text-transform: uppercase; width: 80px; flex-shrink: 0; text-align: right; }
.proto-bar-wrap { flex: 1; height: 32px; position: relative; background: rgba(255,255,255,.03); border: 1px solid var(--border); overflow: hidden; }
.proto-bar {
  height: 100%; background: linear-gradient(90deg, var(--ir), var(--ir-dim));
  width: 0; transition: width 1.2s cubic-bezier(.4,0,.2,1); position: relative;
}
.proto-bar::after {
  content: ''; position: absolute; top: 0; right: 0; bottom: 0; width: 2px;
  background: #fff; box-shadow: 0 0 8px #fff;
  animation: bar-pulse 1s ease-in-out infinite;
}
@keyframes bar-pulse { 0%,100% { opacity: 0; } 50% { opacity: 1; } }
.proto-bar-wrap.animate .proto-bar { width: var(--w); }
.proto-val { font-size: .75rem; color: var(--ir); width: 100px; flex-shrink: 0; }

.waveform-wrap { margin-top: 3rem; border: 1px solid var(--border); padding: 2rem; background: var(--bg); overflow: hidden; position: relative; }
.waveform-label { font-size: .65rem; letter-spacing: .2em; color: var(--muted); text-transform: uppercase; margin-bottom: 1.5rem; }
.waveform-label span { color: var(--ir); }
.waveform-svg { width: 100%; overflow: hidden; }

/* ─── SETUP ──────────────────────────────────────────── */
.setup-steps { margin-top: 3rem; counter-reset: step; display: grid; grid-template-columns: 1fr 1fr; gap: 0 2rem; }
.setup-col-header {
  padding-bottom: .75rem; margin-bottom: 0;
  font-family: 'Share Tech Mono', monospace;
  font-size: .65rem; letter-spacing: .35em;
  color: var(--ir); text-transform: uppercase; text-align: center;
  border-bottom: 1px solid var(--border);
}
.setup-col-header:first-child { grid-column: 1; grid-row: 1; }
.setup-col-header:last-child  { grid-column: 2; grid-row: 1; }
.step { display: grid; grid-template-columns: 60px 1fr; gap: 1.5rem; padding: 2rem 0; border-bottom: 1px solid var(--border); position: relative; }
.step:nth-child(3) { grid-column: 1; grid-row: 2; }
.step:nth-child(4) { grid-column: 1; grid-row: 3; }
.step:nth-child(5) { grid-column: 2; grid-row: 2; }
.step:nth-child(6) { grid-column: 2; grid-row: 3; }
.step-num { font-family: 'Bebas Neue', sans-serif; font-size: 3rem; line-height: 1; color: var(--ir); opacity: .3; transition: opacity .3s; }
.step:hover .step-num { opacity: 1; }
.step-content h3 { font-family: 'Bebas Neue', sans-serif; font-size: 1.5rem; color: var(--white); margin-bottom: .5rem; }
.step-content p { font-size: .9rem; color: var(--muted); line-height: 1.7; }
.step-tag { font-family: 'Share Tech Mono', monospace; font-size: .65rem; letter-spacing: .2em; background: rgba(200,80,255,.1); border: 1px solid var(--ir-dim); color: var(--ir); padding: .15rem .6rem; display: inline-block; margin-bottom: .6rem; }

/* ─── CODE ───────────────────────────────────────────── */
.code-block {
  background: #0a0a0a; border: 1px solid var(--border);
  padding: 1.5rem 2rem; margin-top: 1rem;
  font-family: 'Share Tech Mono', monospace;
  font-size: .8rem; color: #888; line-height: 1.8;
  position: relative; overflow: hidden;
}
.code-block::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, var(--ir-dim), transparent);
}
.code-c { color: var(--muted); }
.code-k { color: var(--amber); }
.code-s { color: var(--ir); }
.code-v { color: #79c0ff; }
.code-n { color: var(--white); }

/* ─── WARNING ────────────────────────────────────────── */
#warning { background: rgba(255,176,32,.04); border-top: 1px solid var(--amber-dim); border-bottom: 1px solid var(--amber-dim); }
.warning-inner { display: flex; gap: 2rem; align-items: flex-start; }
.warning-icon { font-size: 2rem; flex-shrink: 0; color: var(--amber); filter: drop-shadow(var(--glow-amb)); animation: warn-pulse 2s ease-in-out infinite; }
@keyframes warn-pulse {
  0%,100% { filter: drop-shadow(0 0 8px #ffb02088); }
  50%      { filter: drop-shadow(0 0 24px #ffb020cc); }
}
.warning-text h3 { font-family: 'Bebas Neue', sans-serif; font-size: 1.6rem; color: var(--amber); letter-spacing: .05em; margin-bottom: .6rem; }
.warning-text p { font-family: 'Share Tech Mono', monospace; font-size: .8rem; color: var(--muted); line-height: 1.8; max-width: 600px; }

/* ─── FOOTER ─────────────────────────────────────────── */
footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 1rem;
  padding: 4rem 2rem;
}

.footer-logo {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 2rem;
  color: var(--ir);
  text-shadow: var(--glow-ir);
  letter-spacing: .05em;
}

.footer-meta {
  font-family: 'Share Tech Mono', monospace;
  font-size: .7rem;
  color: var(--muted);
  line-height: 2;
}

.footer-meta a {
  color: var(--ir);
  text-decoration: none;
}

.footer-meta a:hover {
  text-decoration: underline;
}

.footer-github {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .6rem;
  font-family: 'Share Tech Mono', monospace;
  font-size: .75rem;
  color: var(--muted);
  text-decoration: none;
  border: 1px solid var(--border);
  padding: .6rem 1.2rem;
  transition: border-color .3s, color .3s;
}

.footer-github:hover {
  border-color: var(--ir);
  color: var(--ir);
}

.footer-github i {
  font-size: 1.1rem;
}

/* ─── RESPONSIVE ─────────────────────────────────────── */
@media (max-width: 1050px) {
  .hero-inner { flex-direction: column; }
  .hero-panel { width: 100%; margin-top: 2rem; }
  .panel-content { height: 280px; }
}

@media (max-width: 900px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .setup-steps {
    grid-template-columns: 1fr;
  }
  .setup-col-header { grid-column: auto; grid-row: auto; }
  .step { grid-column: auto; grid-row: auto; }
  .step:last-child { border-bottom: none; }
}

@media (max-width: 600px) {
  .features-grid {
    grid-template-columns: 1fr;
  }
  section {
    padding: 5rem 6vw;
  }
  #hero {
    padding: 4.5rem 6vw 5rem;
    min-height: auto;
  }
  .arch-diagram {
    grid-template-columns: 1fr;
  }
  .arch-arrow {
    transform: rotate(90deg);
    margin: 1rem auto;
  }
  footer {
    flex-direction: column;
    align-items: center;
  }
  .warning-inner {
    flex-direction: column;
  }
  .scroll-hint {
    display: none;
  }
  .hero-cta {
    flex-direction: column;
  }
  .hero-cta .btn {
    width: 100%;
    text-align: center;
  }
  .hero-sub {
    max-width: 100%;
  }
  .panel-content {
    height: 240px;
  }
  .tab-body {
    padding: 0.75rem;
    font-size: .65rem;
  }
  .bom-table th,
  .bom-table td {
    padding: .25rem .4rem;
  }
  .protocol-vis {
    overflow-x: auto;
  }
  .proto-row {
    gap: 0.5rem;
  }
  .proto-label {
    width: 60px;
    font-size: .6rem;
  }
  .proto-val {
    width: 80px;
    font-size: .6rem;
  }
  .proto-bar-wrap {
    height: 24px;
  }
  .code-block {
    padding: 1rem;
    font-size: .7rem;
    overflow-x: auto;
  }
  .feature-card {
    padding: 2rem 1.5rem;
  }
  .feature-name {
    font-size: 1.1rem;
  }
  .feature-desc {
    font-size: .8rem;
  }
  .section-label::after {
    max-width: 40px;
  }
  .arch-bottom {
    flex-direction: column;
    gap: 1rem;
    padding: 1rem;
  }
  .ir-matrix-label {
    font-size: 1.1rem;
  }
  .waveform-wrap {
    padding: 1rem;
  }
  .ticker-item {
    font-size: .65rem;
    padding: 0 2rem;
  }
}

@media (max-width: 480px) {
  section {
    padding: 4rem 5vw;
  }
  #hero {
    padding: 3.5rem 5vw 4rem;
  }
  .panel-content {
    height: 200px;
  }
  .panel-tab {
    font-size: .6rem;
    padding: .6rem .3rem;
  }
  .hero-cta .btn {
    font-size: .75rem;
    padding: .75rem 1.5rem;
  }
  .hero-eyebrow {
    font-size: .65rem;
  }
  .hero-github a {
    font-size: .65rem;
  }
  .step {
    grid-template-columns: 40px 1fr;
    gap: 1rem;
    padding: 1.5rem 0;
  }
  .step-num {
    font-size: 2rem;
  }
  .step-content h3 {
    font-size: 1.2rem;
  }
  .step-content p {
    font-size: .8rem;
  }
  .feature-card {
    padding: 1.5rem 1rem;
  }
  .feature-icon {
    font-size: 1.1rem;
    margin-bottom: 1rem;
  }
  .feature-num {
    display: none;
  }
  .code-block {
    font-size: .65rem;
    padding: .75rem;
  }
}