/* Service, project and blog pages. Each service page has its own theme
   (scoped by the body class: pg--design, pg--rec, pg--rds, pg--proto,
   pg--emb, pg--fpd). Shared bits first. */

.pg-hero { position: relative; padding: 140px 0 80px; overflow-x: clip; }
.pg-hero__grid { display: grid; grid-template-columns: 1fr 1.05fr; gap: 56px; align-items: center; }
.pg-hero__narrow { max-width: 760px; }
.pg-hero__narrow--center { margin: 0 auto; text-align: center; }
.pg-hero__narrow--center .actions, .pg-hero__narrow--center .pg-kicker { justify-content: center; }
.pg-hero h1 { font-size: clamp(36px, 5.2vw, 60px); }
.pg-crumb { margin: 0 0 22px; font: 500 13px var(--font-mono); color: var(--muted); }
.pg-crumb a { color: var(--muted); text-decoration: none; }
.pg-crumb a:hover { color: var(--copper-hi); }
.pg-crumb span { margin: 0 8px; opacity: 0.5; }
.pg-kicker { display: flex; align-items: center; gap: 12px; margin: 0 0 16px; font: 500 13px var(--font-mono); letter-spacing: 0.12em; color: var(--copper-hi); }
.pg-lead { margin: 20px 0 0; font-size: 18px; color: var(--muted); }
.pg-note { display: flex; gap: 14px; align-items: flex-start; margin: 32px 0 0; padding: 16px 20px; border-radius: 8px; border: 1px solid rgba(255, 178, 107, 0.3); background: rgba(255, 178, 107, 0.05); color: var(--text); }
.pg-note b { flex: none; display: grid; place-items: center; width: 22px; height: 22px; border-radius: 50%; background: var(--copper-hi); color: #1a1206; font: 700 13px var(--font-mono); }
.pg-note--inline { margin-top: 20px; }
.pg-others { border-top: 1px solid var(--line); }
.others { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; margin-top: 30px; }
.other {
  position: relative; display: grid; gap: 6px; padding: 22px 18px 18px; border-radius: 8px; text-decoration: none;
  background: linear-gradient(180deg, var(--package-2), var(--package)); box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.07);
  transition: box-shadow 0.3s, transform 0.3s;
}
.other:hover { transform: translateY(-3px); box-shadow: 0 0 0 1px rgba(255, 178, 107, 0.55); }
.other__ref { position: absolute; top: -22px; left: 0; }
.other__code { font: 500 11.5px var(--font-mono); color: var(--copper-hi); letter-spacing: 0.1em; }
.other__title { font-size: 17px; font-weight: 600; line-height: 1.25; }
.other__arrow { color: var(--muted); font-family: var(--font-mono); }
/* Shared reveal for page blocks */
[data-inview] [style*="--i"] { opacity: 0; transform: translateY(8px); transition: opacity 0.45s, transform 0.45s; transition-delay: calc(var(--i) * 0.09s + 0.1s); }
[data-inview].is-in [style*="--i"] { opacity: 1; transform: none; }

/* ============ 01 · PCB Design — exploded layer stack ============ */
.stack { position: relative; height: 420px; perspective: 1400px; }
.stack__layer {
  position: absolute; left: 8%; right: 8%; top: 32%; height: 52%;
  transform: rotateX(58deg) rotateZ(-38deg) translateZ(0);
  transform-style: preserve-3d;
  transition: transform 1.1s cubic-bezier(0.2, 0.8, 0.2, 1);
  transition-delay: calc(0.15s + var(--i) * 0.08s);
  border-radius: 10px;
}
/* [data-inview] reveal is not wanted for the layers themselves */
.stack [style*="--i"] { opacity: 1; }
.stack.is-in .stack__layer { transform: rotateX(58deg) rotateZ(-38deg) translateZ(calc((1.5 - var(--i)) * 70px)); }
.stack__layer svg { display: block; width: 100%; height: 100%; border-radius: 10px; }
.stack__layer--silk svg { background: rgba(7, 16, 12, 0.15); outline: 1px solid rgba(233, 239, 233, 0.25); }
.stack__layer--fcu svg { background: rgba(200, 52, 52, 0.08); outline: 1px solid rgba(200, 52, 52, 0.5); }
.stack__layer--core svg { background: linear-gradient(135deg, #5c5a2a, #3d3e1c); outline: 1px solid #7b7a3c; }
.stack__layer--bcu svg { background: rgba(77, 127, 196, 0.12); outline: 1px solid rgba(77, 127, 196, 0.55); }
.stack__name {
  position: absolute; right: -8px; top: 50%; transform: translate(100%, -50%) rotateZ(38deg) rotateX(-58deg);
  font: 700 12px var(--font-mono); letter-spacing: 0.08em; color: var(--silk); white-space: nowrap;
}
.ly-silk { fill: none; stroke: #f2eecc; stroke-width: 2; }
.ly-silk-t { font: 700 13px var(--font-mono); fill: #f2eecc; }
.ly-cu { fill: none; stroke: #e05050; stroke-width: 4; stroke-linecap: round; stroke-linejoin: round; }
.ly-cu--b { stroke: #6a9ce0; }
.ly-pad { fill: #e05050; }
.ly-weave { stroke: rgba(255, 255, 210, 0.08); stroke-width: 1; }
.ly-pour { fill: rgba(77, 127, 196, 0.08); }
.ly-via { fill: #0d0d0d; stroke: #d7b45a; stroke-width: 2; }

.layers-grid, .files-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 56px; align-items: start; }
.files-grid { grid-template-columns: 1.2fr 1fr; align-items: center; }
.kpanel { border-radius: 8px; overflow: hidden; border: 1px solid rgba(255, 255, 255, 0.1); background: #1c1f22; font-family: var(--font-mono); }
.kpanel__bar { display: flex; gap: 2px; background: #15171a; }
.kpanel__bar span { padding: 9px 16px; font-size: 12px; color: var(--muted); }
.kpanel__bar span:first-child { background: #1c1f22; color: var(--silk); }
.kpanel__row { display: grid; grid-template-columns: 18px 22px 120px 1fr; gap: 12px; align-items: center; padding: 14px 16px; border-top: 1px solid rgba(255, 255, 255, 0.05); }
.kpanel__row:hover { background: rgba(255, 255, 255, 0.03); }
.kpanel__sw { width: 16px; height: 16px; border-radius: 3px; background: var(--c); box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.5); }
.kpanel__eye { width: 20px; fill: none; stroke: var(--muted); stroke-width: 1.4; }
.kpanel__name { font-size: 14px; color: var(--silk); }
.kpanel__text { font: 15px var(--font-sans); color: var(--muted); }

.tree { padding: 28px; border-radius: 10px; background: #0a0d0c; border: 1px solid var(--line); font-family: var(--font-mono); font-size: 14px; }
.tree__root { margin: 0 0 10px; color: var(--copper-hi); font-weight: 700; }
.tree__row { display: grid; grid-template-columns: 28px 170px 1fr; gap: 8px; padding: 6px 0; }
.tree__branch { color: #4d5a53; }
.tree__name { color: var(--silk); }
.tree__text { font: 14.5px var(--font-sans); color: var(--muted); }

.flow { list-style: none; padding: 0; margin: 24px 0 0; display: grid; grid-template-columns: repeat(4, 1fr); counter-reset: f; }
.flow li { position: relative; padding: 24px 24px 24px 0; border-top: 2px solid #3d2b1c; }
.flow li::before { content: ""; position: absolute; top: -2px; left: 0; height: 2px; width: 0; background: var(--copper-hi); transition: width 0.6s; transition-delay: calc(var(--i) * 0.3s + 0.2s); }
.flow.is-in li::before { width: 100%; }
.flow__n { font: 700 13px var(--font-mono); color: var(--copper-hi); }
.flow h3 { font-size: 21px; margin-top: 10px; }
.flow p { color: var(--muted); margin: 8px 0 0; font-size: 15.5px; }

/* ============ 02 · Recreation — scanner HUD ============ */
.pg--rec .pg-hero { padding-bottom: 40px; }
.hud { position: relative; margin-top: 48px; padding: 52px 28px 28px; border-radius: 6px; background: rgba(93, 255, 157, 0.025); border: 1px solid rgba(93, 255, 157, 0.15); }
.hud .art { max-width: 880px; margin: 0 auto; }
.hud__c { position: absolute; width: 22px; height: 22px; border: 2px solid var(--led); }
.hud__c--tl { top: -1px; left: -1px; border-right: 0; border-bottom: 0; }
.hud__c--tr { top: -1px; right: -1px; border-left: 0; border-bottom: 0; }
.hud__c--bl { bottom: -1px; left: -1px; border-right: 0; border-top: 0; }
.hud__c--br { bottom: -1px; right: -1px; border-left: 0; border-top: 0; }
.hud__bar { position: absolute; top: 16px; left: 28px; right: 28px; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; font: 500 12px var(--font-mono); letter-spacing: 0.12em; color: rgba(93, 255, 157, 0.75); }
.hud__bar b { color: var(--led); }
.hud__rec { animation: hud-rec 1.4s steps(1) infinite; }
@keyframes hud-rec { 50% { opacity: 0.35; } }
.hud__xhair { position: absolute; inset: 0; pointer-events: none; background:
  linear-gradient(90deg, transparent calc(50% - 0.5px), rgba(93, 255, 157, 0.12) calc(50% - 0.5px), rgba(93, 255, 157, 0.12) calc(50% + 0.5px), transparent calc(50% + 0.5px)),
  linear-gradient(0deg, transparent calc(50% - 0.5px), rgba(93, 255, 157, 0.12) calc(50% - 0.5px), rgba(93, 255, 157, 0.12) calc(50% + 0.5px), transparent calc(50% + 0.5px)); }
.log-grid { display: grid; grid-template-columns: 1fr 1.6fr; gap: 56px; align-items: start; }
.log { list-style: none; margin: 0; padding: 22px 26px; border-radius: 8px; background: #050a07; border: 1px solid rgba(93, 255, 157, 0.15); font-family: var(--font-mono); font-size: 14px; }
.log li { display: grid; grid-template-columns: 70px 96px 1fr; gap: 10px; padding: 9px 0; border-bottom: 1px dashed rgba(93, 255, 157, 0.1); }
.log li:last-child { border-bottom: 0; }
.log__time { color: #4d6a58; }
.log__tag { color: var(--led); font-weight: 700; }
.log__text { font: 15px var(--font-sans); color: var(--text); }
.netlist { width: 100%; margin-top: 32px; border-collapse: collapse; font-size: 16px; }
.netlist th { text-align: left; padding: 10px 16px; font: 700 11px var(--font-mono); letter-spacing: 0.16em; text-transform: uppercase; color: var(--silk-dim); border-bottom: 1px solid var(--line); }
.netlist td { padding: 15px 16px; border-bottom: 1px solid var(--line); }
.netlist td:first-child { width: 80px; font: 700 13px var(--font-mono); color: var(--led); }
.netlist__ok { width: 40px; color: var(--led); text-align: right; }
.tape { display: grid; gap: 14px; margin-top: 32px; }
.tape p { position: relative; display: flex; gap: 14px; align-items: center; margin: 0; padding: 16px 20px 16px 26px; border-radius: 6px; background: rgba(255, 211, 107, 0.06); border: 1px solid rgba(255, 211, 107, 0.3); overflow: hidden; }
.tape p::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 8px; background: repeating-linear-gradient(45deg, #ffd36b 0 6px, #1a1606 6px 12px); }
.tape b { color: #ffd36b; font-family: var(--font-mono); }

/* ============ 03 · Redesign — before/after ============ */
.cmp { position: relative; aspect-ratio: 4 / 3; border-radius: 12px; border: 1px solid var(--line); background: rgba(255, 255, 255, 0.015); overflow: hidden; user-select: none; }
.cmp__img { position: absolute; inset: 0; width: 100%; height: 100%; }
.cmp__img--a { clip-path: inset(0 calc(100% - var(--pos)) 0 0); }
.cmp__img--b { clip-path: inset(0 0 0 var(--pos)); }
.cmp__tag { font: 700 12px var(--font-mono); fill: var(--silk-dim); letter-spacing: 0.06em; }
.cmp__line { position: absolute; top: 0; bottom: 0; left: var(--pos); width: 2px; margin-left: -1px; background: var(--copper-hi); pointer-events: none; }
.cmp__line i { position: absolute; top: 50%; left: 50%; width: 36px; height: 36px; margin: -18px 0 0 -18px; border-radius: 50%; background: var(--copper-hi); box-shadow: 0 0 0 6px rgba(255, 178, 107, 0.2); }
.cmp__line i::before { content: "‹ ›"; position: absolute; inset: 0; display: grid; place-items: center; font: 700 15px var(--font-mono); color: #1a1206; }
.cmp__lbl { position: absolute; top: 14px; padding: 3px 9px; border-radius: 3px; font: 700 12px var(--font-mono); letter-spacing: 0.1em; background: rgba(0, 0, 0, 0.5); }
.cmp__lbl--a { left: 14px; color: var(--red); }
.cmp__lbl--b { right: 14px; color: var(--led); }
.cmp__range { position: absolute; inset: 0; width: 100%; height: 100%; margin: 0; opacity: 0; cursor: ew-resize; }
.cmp:focus-within .cmp__line i { box-shadow: 0 0 0 6px rgba(255, 178, 107, 0.45); }
.diff-grid { display: grid; grid-template-columns: 1fr 1.5fr; gap: 56px; align-items: start; }
.diff { padding: 20px 0; border-radius: 8px; background: #0a0d0c; border: 1px solid var(--line); font: 14px var(--font-mono); overflow: hidden; }
.diff__file { margin: 0 0 10px; padding: 0 20px 12px; color: var(--muted); border-bottom: 1px solid var(--line); line-height: 1.7; }
.diff__line { display: grid; grid-template-columns: 34px 22px 1fr; margin: 0; padding: 6px 20px 6px 8px; font: 15px var(--font-sans); }
.diff__n { font: 12px var(--font-mono); color: #4d5a53; text-align: right; padding-right: 12px; align-self: center; }
.diff__op { font: 700 14px var(--font-mono); }
.diff__line--del { background: rgba(255, 107, 107, 0.08); }
.diff__line--del .diff__op { color: var(--red); }
.diff__line--del { text-decoration: line-through; text-decoration-color: rgba(255, 107, 107, 0.5); color: #e2b6b6; }
.diff__line--add { background: rgba(93, 255, 157, 0.07); }
.diff__line--add .diff__op { color: var(--led); }
.diff__line--mod { background: rgba(255, 178, 107, 0.06); }
.diff__line--mod .diff__op { color: var(--copper-hi); }
.ecos { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 36px; }
.eco { position: relative; padding: 24px; border-radius: 6px; background: #f2efe6; color: #1d1f1c; box-shadow: 0 16px 30px rgba(0, 0, 0, 0.4); }
.eco:nth-child(odd) { transform: rotate(-0.6deg); }
.eco:nth-child(even) { transform: rotate(0.5deg); }
.ecos.is-in .eco:nth-child(odd) { transform: rotate(-0.6deg); }
.ecos.is-in .eco:nth-child(even) { transform: rotate(0.5deg); }
.eco__id { margin: 0 0 6px; font: 700 12px var(--font-mono); letter-spacing: 0.1em; color: #8a5a2a; }
.eco h3 { font-size: 21px; }
.eco p:not(.eco__id) { margin: 8px 0 34px; font-size: 15px; color: #4a4d48; }
.eco__stamp { position: absolute; right: 14px; bottom: 12px; padding: 2px 8px; border: 2px solid #2e8b57; border-radius: 3px; font: 700 11px var(--font-mono); letter-spacing: 0.12em; color: #2e8b57; transform: rotate(-8deg); opacity: 0.85; }

/* ============ 04 · Prototype — oscilloscope ============ */
.scope { display: grid; grid-template-columns: 1fr 150px; gap: 14px; padding: 16px; border-radius: 16px; background: linear-gradient(180deg, #1d2321, #121615); box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.08), 0 30px 60px rgba(0, 0, 0, 0.5); }
.scope__screen { position: relative; aspect-ratio: 400 / 260; border-radius: 6px; background: #031009; box-shadow: inset 0 0 40px rgba(93, 255, 157, 0.08); overflow: hidden; }
.scope__screen svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.scope__screen .a-wave { stroke-width: 2.5; vector-effect: non-scaling-stroke; }
.scope__axis { stroke: rgba(93, 255, 157, 0.22); vector-effect: non-scaling-stroke; }
.scope__screen .a-grid { vector-effect: non-scaling-stroke; }
.scope__trig { position: absolute; top: 8px; left: 10px; font: 700 11px var(--font-mono); color: var(--copper-hi); }
.scope__side { display: flex; flex-direction: column; gap: 8px; }
.scope__ro { display: grid; margin: 0; padding: 8px 10px; border-radius: 4px; background: #0a0d0c; border: 1px solid rgba(255, 255, 255, 0.08); }
.scope__ro span { font: 700 10.5px var(--font-mono); letter-spacing: 0.12em; color: var(--muted); }
.scope__ro b { font: 500 16px var(--font-mono); color: var(--copper-hi); }
.scope__ro:nth-child(2) b { color: var(--cyan); }
.scope__knobs { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: auto; justify-items: center; }
.scope__knobs i { width: 42px; height: 42px; border-radius: 50%; background: radial-gradient(circle at 35% 30%, #39403d, #0d100f 70%); box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.1), 0 3px 6px rgba(0, 0, 0, 0.6); position: relative; }
.scope__knobs i::after { content: ""; position: absolute; top: 5px; left: 50%; width: 2px; height: 10px; margin-left: -1px; background: var(--silk); }
.seq-grid, .report-grid { display: grid; grid-template-columns: 1fr 1.5fr; gap: 56px; align-items: start; }
.report-grid { grid-template-columns: 1.1fr 1fr; align-items: center; }
.seq { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.seq li { display: grid; grid-template-columns: 14px 34px 1fr auto; gap: 14px; align-items: center; padding: 16px 20px; border-radius: 8px; background: linear-gradient(180deg, var(--package-2), var(--package)); box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.07); }
.seq h3 { font-size: 18px; }
.seq p { margin: 2px 0 0; color: var(--muted); font-size: 15px; }
.seq__led { width: 12px; height: 12px; border-radius: 50%; background: #1d2a22; transition: background 0.3s, box-shadow 0.3s; transition-delay: calc(var(--i) * 0.35s + 0.4s); }
.seq.is-in .seq__led { background: var(--led); box-shadow: 0 0 10px var(--led); }
.seq__n { font: 700 13px var(--font-mono); color: var(--muted); }
.seq__st { font: 700 12px var(--font-mono); letter-spacing: 0.1em; color: var(--led); opacity: 0; transition: opacity 0.3s; transition-delay: calc(var(--i) * 0.35s + 0.5s); }
.seq.is-in .seq__st { opacity: 1; }
.paper { position: relative; padding: 36px 36px 40px; border-radius: 4px; background: #f4f1e8; color: #222; box-shadow: 0 30px 60px rgba(0, 0, 0, 0.5); transform: rotate(-1.2deg); font-family: var(--font-mono); }
.paper__h { margin: 0 0 6px; font-size: 15px; font-weight: 700; letter-spacing: 0.1em; }
.paper__meta { margin: 0 0 20px; padding-bottom: 14px; border-bottom: 2px solid #222; font-size: 12.5px; color: #555; }
.paper ol { margin: 0; padding-left: 22px; display: grid; gap: 12px; font: 16px var(--font-sans); }
.paper__stamp { position: absolute; right: 26px; bottom: 22px; padding: 4px 14px; border: 3px solid #2e8b57; border-radius: 4px; font: 700 20px var(--font-mono); letter-spacing: 0.16em; color: #2e8b57; transform: rotate(-12deg) scale(1.6); opacity: 0; transition: transform 0.35s cubic-bezier(0.3, 1.6, 0.5, 1) 0.6s, opacity 0.2s 0.6s; }
.paper.is-in .paper__stamp { opacity: 0.85; transform: rotate(-12deg) scale(1); }

/* ============ 05 · Embedded — IDE + pinout ============ */
.ide { border-radius: 10px; overflow: hidden; background: #0b0e0d; box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.09), 0 30px 60px rgba(0, 0, 0, 0.5); font-family: var(--font-mono); }
.ide__bar { display: flex; align-items: center; gap: 7px; padding: 10px 14px; background: #121615; border-bottom: 1px solid rgba(255, 255, 255, 0.06); }
.ide__bar i { width: 10px; height: 10px; border-radius: 50%; background: #3a403d; }
.ide__bar i:nth-child(1) { background: #ff6b6b; } .ide__bar i:nth-child(2) { background: #ffd36b; } .ide__bar i:nth-child(3) { background: #5dff9d; }
.ide__bar span { margin-left: 10px; font-size: 12px; color: var(--muted); }
.ide__code { margin: 0; padding: 16px 0; font: 13px/1.65 var(--font-mono); color: #cfd8d2; overflow-x: auto; }
.ide__ln { display: block; padding-right: 16px; opacity: 0; animation: ln-in 0.25s ease forwards; animation-delay: calc(var(--i) * 0.07s + 0.2s); }
.ide__ln u { display: inline-block; width: 40px; padding-right: 14px; text-align: right; text-decoration: none; color: #3d4742; user-select: none; }
.ide__code b { font-weight: 500; }
.ide__code .k { color: var(--copper-hi); } .ide__code .f { color: #ffe08a; } .ide__code .s { color: #8fe3a8; } .ide__code .c { color: #5f6e66; } .ide__code .n { color: var(--cyan); }
@keyframes ln-in { from { opacity: 0; transform: translateX(-4px); } to { opacity: 1; transform: none; } }
.ide__term { padding: 12px 16px 14px; background: #050706; border-top: 1px solid rgba(255, 255, 255, 0.06); font-size: 12.5px; }
.ide__term p { margin: 0; color: #8fe3a8; opacity: 0; animation: ln-in 0.2s ease forwards; animation-delay: calc(var(--i) * 0.28s + 1.4s); white-space: pre; }
.ide__term p.cmd { color: var(--silk); }
.ide__cur span { display: inline-block; width: 8px; height: 14px; vertical-align: -2px; background: var(--copper-hi); animation: caret-b 1s steps(1) infinite; }
@keyframes caret-b { 50% { opacity: 0; } }
.pinout { display: grid; grid-template-columns: 1fr 240px 1fr; gap: 0 56px; align-items: center; margin-top: 48px; }
.pinout__col { display: grid; gap: 18px; }
.pin { position: relative; padding: 18px 20px; border-radius: 8px; background: linear-gradient(180deg, var(--package-2), var(--package)); box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.07); }
.pin__id { font: 700 12px var(--font-mono); color: var(--copper-hi); letter-spacing: 0.08em; }
.pin h3 { font-size: 19px; margin-top: 4px; }
.pin p { margin: 4px 0 0; color: var(--muted); font-size: 15px; }
.pin__wire { position: absolute; top: 50%; right: -56px; width: 56px; height: 2px; background: #3d2b1c; }
.pinout__col--r .pin__wire { right: auto; left: -56px; }
.pin__wire::after { content: ""; position: absolute; inset: 0; background: var(--copper-hi); transform: scaleX(0); transform-origin: right; transition: transform 0.5s; transition-delay: calc(var(--i) * 0.12s + 0.5s); }
.pinout__col--r .pin__wire::after { transform-origin: left; }
.pinout.is-in .pin__wire::after { transform: scaleX(1); }
.mcu {
  position: relative; aspect-ratio: 1; display: grid; place-content: center; text-align: center; gap: 2px; border-radius: 8px;
  background: linear-gradient(135deg, #1b201e, #0b0d0c); box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.1), 0 30px 60px rgba(0, 0, 0, 0.5);
  font-family: var(--font-mono);
}
.mcu::before, .mcu::after { content: ""; position: absolute; background: repeating-linear-gradient(90deg, var(--gold) 0 6px, transparent 6px 15px); left: 14px; right: 14px; height: 12px; }
.mcu::before { top: -12px; } .mcu::after { bottom: -12px; }
.pinout__chip { position: relative; padding: 0 12px; }
.pinout__chip::before, .pinout__chip::after { content: ""; position: absolute; top: 14px; bottom: 14px; width: 12px; background: repeating-linear-gradient(180deg, var(--gold) 0 6px, transparent 6px 15px); }
.pinout__chip::before { left: 0; } .pinout__chip::after { right: 0; }
.mcu b { font-size: 26px; letter-spacing: 0.1em; }
.mcu span { font-size: 12px; color: var(--muted); }
.mcu small { margin-top: 10px; font-size: 11px; color: var(--silk-dim); }
.mcu__dot { position: absolute; top: 16px; left: 16px; width: 10px; height: 10px; border-radius: 50%; background: #2a302d; }
.ticks { list-style: none; padding: 0; margin: 56px 0 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px 32px; }
.ticks li { position: relative; padding-left: 30px; }
.ticks li::before { content: "✓"; position: absolute; left: 0; top: 0; font-family: var(--font-mono); color: var(--led); }

/* ============ 06 · Full product — stage-gate road ============ */
.road { position: relative; list-style: none; padding: 0; margin: 72px 0 0; display: grid; grid-template-columns: repeat(6, 1fr); }
.road::before, .road::after { content: ""; position: absolute; top: 9px; left: calc(100% / 12); right: calc(100% / 12); height: 3px; border-radius: 2px; }
.road::before { background: #3d2b1c; }
.road::after { background: linear-gradient(90deg, var(--copper-hi), #ffe3bf); transform: scaleX(0); transform-origin: left; transition: transform 2.6s cubic-bezier(0.4, 0, 0.2, 1) 0.3s; }
.road.is-in::after { transform: scaleX(1); }
.road__gate { position: relative; display: grid; justify-items: center; gap: 6px; text-align: center; }
.road [style*="--i"] { opacity: 1; transform: none; }
.road__dot { position: relative; z-index: 1; width: 22px; height: 22px; border-radius: 4px; border: 2px solid var(--gold); background: var(--mask); transition: background 0.3s, box-shadow 0.3s; transition-delay: calc(var(--i) * 0.45s + 0.4s); }
.road.is-in .road__dot { background: var(--copper-hi); box-shadow: 0 0 14px var(--copper-hi); }
.road__id { margin-top: 8px; font: 700 12px var(--font-mono); color: var(--silk-dim); }
.road__t { font-size: 15px; font-weight: 600; }
.gates { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 40px; }
.gate { position: relative; padding: 26px; border-radius: 10px; background: linear-gradient(180deg, var(--package-2), var(--package)); box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.07); }
.gate__id { margin: 0 0 6px; font: 700 13px var(--font-mono); color: var(--copper-hi); }
.gate h3 { font-size: 21px; }
.gate p:not(.gate__id) { margin: 8px 0 0; color: var(--muted); font-size: 15.5px; }
.gate__lock { position: absolute; top: 20px; right: 20px; display: grid; place-items: center; width: 26px; height: 26px; border-radius: 50%; border: 1.5px solid rgba(93, 255, 157, 0.5); color: var(--led); font-size: 13px; }
.blocks-grid { display: grid; grid-template-columns: 1fr 1.4fr; gap: 56px; align-items: center; }
.blockdia svg { width: 100%; height: auto; display: block; }
.bd-link { fill: none; stroke: var(--copper-hi); stroke-width: 2; }
.bd-block rect { fill: #121614; stroke: rgba(255, 255, 255, 0.16); }
.bd-block text { font: 600 12.5px var(--font-mono); fill: var(--silk); }
.bd-block--mcu rect { fill: #1d1710; stroke: var(--copper-hi); stroke-width: 2; }

/* ============ Projects & blog ============ */
.filters { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 32px; }
.filters button { padding: 8px 14px; border-radius: 4px; border: 1px solid rgba(255, 255, 255, 0.14); background: transparent; color: var(--muted); font: 500 13px var(--font-mono); cursor: pointer; }
.filters button[aria-pressed="true"] { border-color: var(--copper-hi); color: var(--silk); background: rgba(255, 178, 107, 0.08); }
.empty { margin-top: 40px; padding: 48px 32px; border-radius: 12px; border: 1px dashed rgba(255, 255, 255, 0.16); text-align: center; }
.empty h2 { font-size: 26px; }
.empty p { color: var(--muted); margin: 10px auto 24px; max-width: 480px; }
.case { max-width: 860px; }
.case__cover { margin: 40px 0 0; border-radius: 12px; overflow: hidden; border: 1px solid var(--line); }
.case__cover img { display: block; width: 100%; height: auto; }
.case__meta { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 20px; margin: 32px 0 0; padding: 22px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.case__meta dt { font: 700 11px var(--font-mono); letter-spacing: 0.16em; text-transform: uppercase; color: var(--silk-dim); }
.case__meta dd { margin: 6px 0 0; }
.case__meta a { color: var(--copper-hi); text-decoration: none; }
.prose { margin-top: 40px; font-size: 18px; line-height: 1.75; }
.prose h2 { font-size: 30px; margin: 48px 0 14px; }
.prose h3 { font-size: 22px; margin: 36px 0 10px; }
.prose p, .prose ul, .prose ol { margin: 0 0 18px; color: #cdd6d0; }
.prose a { color: var(--copper-hi); }
.prose img { display: block; width: 100%; height: auto; margin: 28px 0; border-radius: 10px; border: 1px solid var(--line); }
.prose code { font: 0.88em var(--font-mono); padding: 2px 6px; border-radius: 4px; background: rgba(255, 255, 255, 0.06); }
.prose pre { padding: 18px 20px; border-radius: 8px; background: #0a0d0c; border: 1px solid var(--line); overflow-x: auto; }
.prose pre code { padding: 0; background: none; }
.prose table { width: 100%; border-collapse: collapse; margin: 0 0 18px; font-size: 16px; }
.prose th, .prose td { padding: 10px 12px; border-bottom: 1px solid var(--line); text-align: left; }
.prose blockquote { margin: 0 0 18px; padding: 4px 20px; border-left: 3px solid var(--copper-hi); color: var(--muted); }
.back { display: inline-block; margin-bottom: 24px; font: 500 13px var(--font-mono); color: var(--muted); text-decoration: none; }
.back:hover { color: var(--copper-hi); }
.posts { display: grid; gap: 14px; margin-top: 40px; }
.post-row { display: grid; grid-template-columns: 120px 1fr auto; gap: 24px; align-items: baseline; padding: 22px 0; border-bottom: 1px solid var(--line); text-decoration: none; }
.post-row:hover h3 { color: var(--copper-hi); }
.post-row time { font: 13px var(--font-mono); color: var(--muted); }
.post-row h3 { font-size: 21px; transition: color 0.2s; }
.post-row p { margin: 6px 0 0; color: var(--muted); font-size: 15.5px; }
.post-row span { font: 13px var(--font-mono); color: var(--copper-hi); }

/* ============ Responsive ============ */
@media (max-width: 1080px) {
  .others { grid-template-columns: repeat(3, 1fr); row-gap: 34px; }
  .ecos { grid-template-columns: repeat(2, 1fr); }
  .road { grid-template-columns: repeat(3, 1fr); row-gap: 28px; }
  .road::before, .road::after { display: none; }
}
@media (max-width: 900px) {
  .pg-hero__grid, .layers-grid, .files-grid, .log-grid, .diff-grid, .seq-grid, .report-grid, .blocks-grid { grid-template-columns: 1fr; gap: 36px; }
  .files-grid .tree, .report-grid .paper { order: 1; }
  .stack { height: 340px; }
  .flow { grid-template-columns: repeat(2, 1fr); }
  .gates { grid-template-columns: repeat(2, 1fr); }
  .pinout { grid-template-columns: 1fr; gap: 18px; }
  .pinout__chip { order: -1; max-width: 220px; margin: 0 auto 18px; width: 100%; }
  .pin__wire { display: none; }
}
@media (max-width: 640px) {
  .pg-hero { padding: 110px 0 56px; }
  .pg-lead { font-size: 16.5px; }
  .others { grid-template-columns: 1fr 1fr; gap: 30px 12px; }
  .stack { height: 260px; }
  .stack__name { font-size: 10px; }
  .kpanel__row { grid-template-columns: 16px 1fr; }
  .kpanel__eye { display: none; }
  .kpanel__text { grid-column: 1 / -1; }
  .tree { padding: 20px 16px; font-size: 13px; }
  .tree__row { grid-template-columns: 22px 1fr; }
  .tree__text { grid-column: 2; font-size: 14px; }
  .flow, .gates, .ecos, .ticks { grid-template-columns: 1fr; }
  .hud { padding: 64px 10px 12px; }
  .hud__bar { left: 14px; right: 14px; font-size: 10.5px; gap: 4px 12px; }
  .log { padding: 14px 16px; }
  .log li { grid-template-columns: 1fr; gap: 2px; }
  .log__time { display: none; }
  .netlist td { padding: 12px 8px; }
  .netlist td:first-child { width: 48px; }
  .scope { grid-template-columns: 1fr; }
  .scope__side { flex-direction: row; flex-wrap: wrap; }
  .scope__ro { flex: 1 1 30%; }
  .scope__knobs { display: none; }
  .seq li { grid-template-columns: 12px 1fr auto; padding: 14px 16px; }
  .seq__n { display: none; }
  .paper { padding: 26px 22px 64px; }
  .ide__code { font-size: 11.5px; }
  .ide__ln u { width: 30px; padding-right: 10px; }
  .road { grid-template-columns: repeat(2, 1fr); }
  .post-row { grid-template-columns: 1fr; gap: 6px; }
}
@media (prefers-reduced-motion: reduce) {
  [data-inview] [style*="--i"], .ide__ln, .ide__term p { opacity: 1 !important; transform: none !important; animation: none !important; transition: none !important; }
  .stack__layer { transition: none; }
  .hud__rec, .ide__cur span { animation: none; }
}