/* ==========================================================================
   dawg4037.com
   Direction: technical spec sheet. Light chassis-grey field, dark instrument
   panels, one semantic status colour. Type: IBM Plex (Condensed / Sans / Mono).
   ========================================================================== */

:root {
  /* Field — cool chassis grey, not cream, not black */
  --field:      #E3E6E8;
  --field-alt:  #ECEEEF;
  --paper:      #F7F8F8;

  /* Ink */
  --ink:        #12171B;
  --ink-2:      #4A555D;
  --ink-3:      #7C888F;

  /* Rails and rules */
  --rule:       #C3CACE;
  --rule-hard:  #A6B0B6;

  /* Chassis — the dark instrument panels */
  --chassis:    #171C21;
  --chassis-2:  #232A31;

  /* Status — semantic only. Never decorative. */
  --link:       #2E8B60;   /* link up */
  --link-glow:  #59C48F;
  --amber:      #C98A12;   /* negotiating */

  --shadow:     0 1px 0 #FFFFFF inset, 0 1px 2px rgba(18,23,27,.10);

  --wrap: 1120px;
}

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

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation: none !important; transition: none !important; }
}

body {
  margin: 0;
  background: var(--field);
  color: var(--ink);
  font-family: "IBM Plex Sans", system-ui, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 28px; }

a { color: inherit; }

.skip {
  position: absolute; left: -9999px;
}
.skip:focus {
  left: 12px; top: 12px; z-index: 99;
  background: var(--ink); color: var(--paper);
  padding: 10px 16px; border-radius: 2px;
}

:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 3px;
}

/* --------------------------------------------------------------- topbar */
.topbar {
  border-bottom: 1px solid var(--rule-hard);
  background: var(--field-alt);
  position: sticky; top: 0; z-index: 20;
}
.topbar-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px; min-height: 66px;
}
.wordmark { text-decoration: none; display: flex; flex-direction: column; line-height: 1.15; }
.wordmark-name {
  font-family: "IBM Plex Mono", monospace;
  font-weight: 600; font-size: 18px; letter-spacing: .02em;
}
.wordmark-sub {
  font-family: "IBM Plex Mono", monospace;
  font-size: 10px; letter-spacing: .16em; text-transform: uppercase;
  color: var(--ink-3);
}
.nav { display: flex; align-items: center; gap: 26px; }
.nav a {
  text-decoration: none;
  font-size: 14px; font-weight: 500;
  color: var(--ink-2);
  padding: 4px 0;
  border-bottom: 1px solid transparent;
}
.nav a:hover { color: var(--ink); border-bottom-color: var(--ink); }
.nav .nav-cta {
  border: 1px solid var(--rule-hard);
  border-radius: 2px;
  padding: 6px 14px;
  background: var(--paper);
  color: var(--ink);
}
.nav .nav-cta:hover { background: var(--ink); color: var(--paper); border-color: var(--ink); }

/* --------------------------------------------------------------- hero */
.hero { padding: 76px 0 64px; }

.eyebrow {
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px; letter-spacing: .1em; text-transform: uppercase;
  color: var(--ink-3);
  margin: 0 0 26px;
}
.status-ok { color: var(--link); font-weight: 600; }

.hero-title {
  font-family: "IBM Plex Sans Condensed", sans-serif;
  font-weight: 700;
  font-size: clamp(40px, 6.4vw, 76px);
  line-height: 1.02;
  letter-spacing: -.02em;
  margin: 0 0 24px;
  max-width: 15ch;
}
.hero-title em {
  font-style: normal;
  color: var(--ink-2);
}

.hero-lede {
  max-width: 58ch;
  font-size: 19px;
  color: var(--ink-2);
  margin: 0 0 44px;
}

/* ---- SIGNATURE: the faceplate ---- */
.faceplate {
  position: relative;
  background: linear-gradient(180deg, var(--chassis-2) 0%, var(--chassis) 100%);
  border: 1px solid #0B0E11;
  border-radius: 4px;
  padding: 20px 30px;
  display: flex; align-items: center; gap: 34px; flex-wrap: wrap;
  box-shadow: 0 10px 30px rgba(18,23,27,.22), 0 1px 0 rgba(255,255,255,.10) inset;
}
.screw {
  position: absolute; width: 9px; height: 9px; border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, #6D767C, #363D43);
  box-shadow: 0 1px 1px rgba(0,0,0,.5);
}
.screw-tl { top: 9px;  left: 9px; }
.screw-bl { bottom: 9px; left: 9px; }
.screw-tr { top: 9px;  right: 9px; }
.screw-br { bottom: 9px; right: 9px; }

.faceplate-brand { display: flex; flex-direction: column; padding-left: 8px; }
.fp-model {
  font-family: "IBM Plex Mono", monospace;
  font-weight: 600; font-size: 17px; letter-spacing: .06em;
  color: #E8ECEE;
}
.fp-class {
  font-family: "IBM Plex Mono", monospace;
  font-size: 10px; letter-spacing: .14em; text-transform: uppercase;
  color: #6E7A82;
}

.faceplate-ports { display: flex; gap: 12px; margin-left: auto; }
.port {
  display: flex; flex-direction: column; align-items: center; gap: 5px;
  cursor: default;
}
.led {
  width: 6px; height: 6px; border-radius: 50%;
  background: #39424A;
}
.led-on {
  background: var(--link-glow);
  box-shadow: 0 0 6px var(--link-glow);
  animation: flicker 2.6s infinite;
}
.led-amber {
  background: var(--amber);
  box-shadow: 0 0 6px var(--amber);
  animation: flicker 1.1s infinite;
}
@keyframes flicker {
  0%, 88%, 100% { opacity: 1; }
  92%           { opacity: .35; }
}
.jack {
  width: 30px; height: 24px;
  border-radius: 2px;
  background: linear-gradient(180deg, #0C0F12, #1A2026);
  border: 1px solid #39424A;
  position: relative;
}
.jack::after {
  content: "";
  position: absolute; top: -1px; left: 50%; transform: translateX(-50%);
  width: 10px; height: 7px;
  background: #39424A;
  border-radius: 0 0 2px 2px;
}
.port-no {
  font-family: "IBM Plex Mono", monospace;
  font-size: 9px; color: #6E7A82; letter-spacing: .06em;
}
.port:hover .jack { border-color: var(--link-glow); }

.faceplate-readout {
  width: 100%;
  display: flex; justify-content: space-between; align-items: baseline;
  border-top: 1px solid #2C343A;
  margin-top: 4px; padding-top: 12px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
}
.fp-hint { color: #58626A; letter-spacing: .1em; text-transform: uppercase; font-size: 10px; }
.fp-out  { color: var(--link-glow); }

.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 36px; }

.btn {
  display: inline-block;
  font-family: "IBM Plex Mono", monospace;
  font-size: 13px; letter-spacing: .04em;
  text-decoration: none;
  padding: 13px 24px;
  border: 1px solid var(--rule-hard);
  border-radius: 2px;
  background: var(--paper);
  color: var(--ink);
  transition: background .15s, color .15s, border-color .15s;
}
.btn:hover { border-color: var(--ink); }
.btn-primary { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.btn-primary:hover { background: var(--chassis-2); }

/* --------------------------------------------------------------- units */
.unit { border-top: 1px solid var(--rule-hard); padding: 68px 0; }
.unit:nth-of-type(even) { background: var(--field-alt); }
.unit-last { padding-bottom: 84px; }

.unit-inner { display: grid; grid-template-columns: 132px 1fr; gap: 36px; }

.unit-rail {
  display: flex; flex-direction: column; gap: 4px;
  border-right: 1px solid var(--rule);
  padding-top: 6px;
}
.u-no {
  font-family: "IBM Plex Mono", monospace;
  font-size: 30px; font-weight: 600; line-height: 1;
  color: var(--ink);
}
.u-name {
  font-family: "IBM Plex Mono", monospace;
  font-size: 10px; letter-spacing: .16em; text-transform: uppercase;
  color: var(--ink-3);
}

.unit-title {
  font-family: "IBM Plex Sans Condensed", sans-serif;
  font-weight: 700;
  font-size: clamp(26px, 3vw, 34px);
  letter-spacing: -.01em;
  line-height: 1.15;
  margin: 0 0 10px;
}
.unit-lede { color: var(--ink-2); margin: 0 0 34px; max-width: 62ch; }

/* --------------------------------------------------------------- cards */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}
.card {
  position: relative;
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: 3px;
  padding: 24px;
  box-shadow: var(--shadow);
}
.card h3 {
  font-family: "IBM Plex Sans Condensed", sans-serif;
  font-size: 19px; font-weight: 700;
  margin: 0 0 10px;
}
.card p { margin: 0; font-size: 15.5px; color: var(--ink-2); }

.card-project { padding-top: 30px; }
.card-state {
  position: absolute; top: 12px; right: 14px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 10px; letter-spacing: .12em; text-transform: uppercase;
  display: flex; align-items: center; gap: 6px;
}
.card-state::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%;
}
.state-live { color: var(--link); }
.state-live::before { background: var(--link); box-shadow: 0 0 5px var(--link); }
.state-wip  { color: var(--amber); }
.state-wip::before  { background: var(--amber); box-shadow: 0 0 5px var(--amber); }

.tags {
  list-style: none; display: flex; flex-wrap: wrap; gap: 6px;
  margin: 16px 0 0; padding: 0;
}
.tags li {
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px; color: var(--ink-3);
  border: 1px solid var(--rule);
  border-radius: 2px;
  padding: 3px 8px;
  background: var(--field-alt);
}

/* --------------------------------------------------------------- spec table */
.spec-table { margin: 0; }
.spec-row {
  display: grid; grid-template-columns: 260px 1fr; gap: 24px;
  padding: 16px 0;
  border-top: 1px solid var(--rule);
  align-items: baseline;
}
.spec-row:last-child { border-bottom: 1px solid var(--rule); }
.spec-row dt {
  font-family: "IBM Plex Sans Condensed", sans-serif;
  font-weight: 700; font-size: 18px;
  display: flex; align-items: baseline; gap: 10px;
}
.spec-idx {
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px; font-weight: 500; color: var(--ink-3);
}
.spec-row dd { margin: 0; color: var(--ink-2); font-size: 15.5px; }

/* --------------------------------------------------------------- posts */
.post-list { list-style: none; margin: 0; padding: 0; }
.post-list li { border-top: 1px solid var(--rule); }
.post-list li:last-child { border-bottom: 1px solid var(--rule); }
.post-list a {
  display: grid;
  grid-template-columns: 92px minmax(190px, 260px) 1fr 28px;
  gap: 24px; align-items: baseline;
  padding: 20px 8px;
  text-decoration: none;
  transition: background .15s, padding .15s;
}
.post-list a:hover { background: var(--paper); padding-left: 16px; }
.post-list time {
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px; color: var(--ink-3); letter-spacing: .04em;
}
.post-title {
  font-family: "IBM Plex Sans Condensed", sans-serif;
  font-weight: 700; font-size: 19px;
}
.post-desc { color: var(--ink-2); font-size: 15px; }
.post-go { color: var(--ink-3); text-align: right; }
.post-list a:hover .post-go { color: var(--ink); }

/* --------------------------------------------------------------- footer */
.foot {
  border-top: 1px solid var(--rule-hard);
  background: var(--chassis);
  color: #8A959C;
  padding: 26px 0;
}
.foot-inner {
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px; letter-spacing: .04em;
}
.foot-mid { color: #59636A; }

/* --------------------------------------------------------------- responsive */
@media (max-width: 860px) {
  .nav { gap: 16px; }
  .nav a:not(.nav-cta) { display: none; }
  .unit-inner { grid-template-columns: 1fr; gap: 20px; }
  .unit-rail {
    flex-direction: row; align-items: baseline; gap: 10px;
    border-right: 0; border-bottom: 1px solid var(--rule);
    padding-bottom: 8px;
  }
  .u-no { font-size: 20px; }
  .spec-row { grid-template-columns: 1fr; gap: 6px; }
  .post-list a { grid-template-columns: 1fr; gap: 6px; padding: 18px 8px; }
  .post-go { display: none; }
  .faceplate { gap: 20px; padding: 18px 20px; }
  .faceplate-ports { margin-left: 0; flex-wrap: wrap; }
  .foot-inner { justify-content: flex-start; flex-direction: column; gap: 6px; }
}

/* --------------------------------------------------------------- subpages */
.hero-tight { padding: 56px 0 64px; }
.hero-title-sm { font-size: clamp(36px, 4.6vw, 54px); max-width: 20ch; }
.hero-tight .hero-lede { margin-bottom: 40px; }

/* --------------------------------------------------------------- article */
.post { padding: 56px 0 84px; }
.post-head { border-bottom: 1px solid var(--rule-hard); padding-bottom: 26px; margin-bottom: 34px; }
.post-head time {
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px; letter-spacing: .1em; text-transform: uppercase;
  color: var(--ink-3);
}
.post-head h1 {
  font-family: "IBM Plex Sans Condensed", sans-serif;
  font-weight: 700;
  font-size: clamp(32px, 4.4vw, 50px);
  line-height: 1.08; letter-spacing: -.015em;
  margin: 10px 0 0;
}
.prose { max-width: 68ch; }
.prose p { color: var(--ink-2); margin: 0 0 20px; }
.prose h2 {
  font-family: "IBM Plex Sans Condensed", sans-serif;
  font-size: 24px; margin: 36px 0 12px; color: var(--ink);
}
.prose a { color: var(--ink); text-decoration-color: var(--rule-hard); text-underline-offset: 3px; }
.prose a:hover { text-decoration-color: var(--ink); }
.prose code {
  font-family: "IBM Plex Mono", monospace; font-size: .9em;
  background: var(--paper); border: 1px solid var(--rule);
  border-radius: 2px; padding: 1px 5px;
}
.draft {
  border: 1px dashed var(--rule-hard);
  background: var(--paper);
  border-radius: 3px;
  padding: 20px 22px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 13px; color: var(--ink-3);
  margin: 0 0 28px;
}

/* --------------------------------------------------------------- 404 */
.notfound { padding: 110px 0 130px; text-align: center; }
.notfound h1 {
  font-family: "IBM Plex Mono", monospace;
  font-size: clamp(56px, 12vw, 120px); margin: 0; letter-spacing: -.02em;
}
.notfound p { color: var(--ink-2); margin: 12px 0 30px; }