/* adamshonting.com — techspec / schematic lane */

:root {
  --paper:     oklch(0.965 0.006 230);
  --paper-2:   oklch(0.945 0.010 230);
  --ink:       oklch(0.18 0.06 235);
  --ink-soft:  oklch(0.42 0.05 235);
  --ink-faint: oklch(0.62 0.04 235);
  --line:      oklch(0.52 0.07 235);
  --line-faint: oklch(0.82 0.025 230);
  --rule:      oklch(0.65 0.07 235);
  --accent:    oklch(0.55 0.16 28);
  --accent-deep: oklch(0.44 0.18 25);
  --signal-bg: color-mix(in oklch, var(--accent) 16%, var(--paper));

  --mono: "Geist Mono", ui-monospace, "Cascadia Code", monospace;
  --sans: "Hanken Grotesk", system-ui, -apple-system, sans-serif;

  --wrap: 1180px;
  --gutter: clamp(1.25rem, 5vw, 3.5rem);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-variant-numeric: tabular-nums;
}

a { color: var(--ink); text-decoration: none; border-bottom: 1px solid var(--line); }
a:hover { color: var(--accent); border-color: var(--accent); }
ul, dl, ol { margin: 0; padding: 0; }

.skip { position: absolute; left: -9999px; top: 0; background: var(--ink); color: var(--paper); padding: 0.6rem 1rem; z-index: 30; }
.skip:focus { left: 0; }

/* ---- title block (top + bottom) ---- */
.title-block {
  font-family: var(--mono);
  font-size: 11px; font-weight: 500;
  color: var(--ink); text-transform: uppercase; letter-spacing: 0.1em;
  display: grid; grid-template-columns: 1fr auto auto auto;
  gap: clamp(0.75rem, 2vw, 1.75rem); align-items: baseline;
  padding: 14px clamp(1rem, 4vw, 2rem);
  border-bottom: 1.5px solid var(--ink);
  background: var(--paper);
  position: sticky; top: 0; z-index: 10;
}
.title-block .pill {
  display: inline-flex; align-items: center; gap: 5px;
  background: var(--signal-bg);
  color: var(--accent-deep);
  padding: 2px 8px;
}
.title-block .pill::before { content: "●"; }
.title-block a { border-bottom: none; color: var(--ink); }
.title-block a:hover { color: var(--accent); }
.title-block .sep { color: var(--ink-faint); }

/* ---- shared section frame ---- */
.fig-label {
  font-family: var(--mono);
  font-size: 12px; font-weight: 600;
  color: var(--accent-deep); text-transform: uppercase; letter-spacing: 0.14em;
  margin: clamp(4rem, 8vw, 7rem) 0 clamp(1rem, 2vw, 1.5rem);
  display: flex; gap: 12px; align-items: baseline;
}
.fig-label::after {
  content: ""; flex: 1; height: 1px; background: var(--accent); opacity: 0.4;
}
.fig-label .fig { color: var(--accent); }
.fig-label .meta { color: var(--ink-faint); font-weight: 500; }

.section-rule {
  border-top: 1.5px solid var(--ink);
  margin: 0 var(--gutter);
}

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

/* ---- hero (FIG. 0) ---- */
.hero { padding-top: clamp(2.5rem, 6vw, 4rem); padding-bottom: clamp(2rem, 5vw, 4rem); }
.hero__grid {
  display: grid; grid-template-columns: 1.15fr 1fr;
  gap: clamp(2rem, 5vw, 4.5rem); align-items: start;
}
@media (max-width: 880px) { .hero__grid { grid-template-columns: 1fr; } }

.hero__title {
  font-family: var(--mono); font-weight: 700;
  font-size: clamp(2.4rem, 5.4vw, 4.4rem);
  line-height: 1.02; letter-spacing: -0.025em;
  color: var(--ink); margin: 0;
}
.hero__title .em { color: var(--accent); }
.hero__title .cur {
  display: inline-block;
  color: var(--accent);
  margin-left: 4px;
  animation: blink 1.1s steps(1) infinite;
}
@media (prefers-reduced-motion: reduce) { .hero__title .cur { animation: none; } }
@keyframes blink { 50% { opacity: 0; } }

.hero__lead {
  font-family: var(--sans); font-weight: 400;
  font-size: clamp(1.05rem, 1.5vw, 1.25rem); line-height: 1.5;
  color: var(--ink); max-width: 42ch; margin: 1.5rem 0 0;
}
.hero__cta {
  display: flex; gap: 0.75rem; flex-wrap: wrap;
  margin-top: clamp(1.5rem, 3vw, 2.25rem);
  font-family: var(--mono); font-size: 12.5px;
  text-transform: uppercase; letter-spacing: 0.1em;
}
.hero__cta a {
  display: inline-flex; align-items: center;
  padding: 0.7rem 1.1rem;
  border: 1.5px solid var(--ink); color: var(--ink);
  transition: background 200ms cubic-bezier(.22,1,.36,1), color 200ms;
  font-weight: 500;
}
.hero__cta a:hover { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.hero__cta a.primary { background: var(--ink); color: var(--paper); }
.hero__cta a.primary:hover { background: var(--accent); border-color: var(--accent); color: var(--paper); }

/* ---- numbered callouts ---- */
.callouts {
  font-family: var(--mono); font-size: 13px; line-height: 1.6;
  border: 1.5px solid var(--ink);
  padding: clamp(1rem, 2vw, 1.5rem);
  background: color-mix(in oklch, var(--paper) 92%, transparent);
}
.callouts__title {
  font-size: 11px; font-weight: 600;
  color: var(--ink-faint); text-transform: uppercase; letter-spacing: 0.14em;
  border-bottom: 1px solid var(--line); padding-bottom: 8px; margin-bottom: 10px;
  display: flex; justify-content: space-between;
}
.callouts .row {
  display: grid; grid-template-columns: 1.6rem 1fr;
  gap: 12px; padding: 6px 0;
  border-bottom: 1px dotted var(--line-faint);
}
.callouts .row:last-child { border-bottom: none; }
.callouts .num {
  color: var(--paper); background: var(--ink);
  width: 1.5rem; height: 1.5rem; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 10px; font-weight: 700;
}
.callouts .label {
  color: var(--ink-soft); font-size: 10.5px; text-transform: uppercase; letter-spacing: 0.12em;
  margin-bottom: 2px;
}
.callouts .val { color: var(--ink); }
.callouts .val a { color: var(--ink); border-bottom: 1px solid var(--line); }

/* ---- system diagram (FIG. 1) ---- */
.system { margin-top: clamp(1.5rem, 3vw, 2rem); }
.system__frame {
  border: 1.5px solid var(--ink);
  padding: clamp(1.25rem, 3vw, 2.25rem);
  background: color-mix(in oklch, var(--paper) 94%, transparent);
}
.system__frame svg { width: 100%; height: auto; display: block; }
.system__caption {
  font-family: var(--mono); font-size: 11px;
  color: var(--ink-soft); text-transform: uppercase; letter-spacing: 0.12em;
  margin-top: 14px; text-align: center;
}

/* ---- project rows (SECTION B) ---- */
.projects { list-style: none; }
.project {
  border-top: 1px solid var(--line-faint);
  padding-block: clamp(2rem, 4vw, 3rem);
}
.project__head {
  display: flex; justify-content: space-between; align-items: baseline;
  font-family: var(--mono);
  font-size: 12px; font-weight: 600;
  color: var(--accent-deep); text-transform: uppercase; letter-spacing: 0.12em;
  margin-bottom: 1rem;
}
.project__head .fig { color: var(--accent); }
.project__head .status {
  font-family: var(--mono); font-size: 10.5px; font-weight: 600;
  color: var(--accent-deep);
  background: var(--signal-bg);
  padding: 2px 8px;
}

.project__body {
  display: grid; grid-template-columns: 1.05fr 1fr;
  gap: clamp(1.5rem, 4vw, 3rem); align-items: center;
}
.project:not(.project--media) .project__body { grid-template-columns: 1fr; }
@media (max-width: 760px) { .project__body { grid-template-columns: 1fr; } }

.project__media { margin: 0; }
.project__media img {
  width: 100%; height: auto; display: block;
  border: 1.5px solid var(--ink);
  box-shadow: 8px 8px 0 0 var(--paper-2), 8px 8px 0 1.5px var(--ink);
}

@media (min-width: 761px) {
  .project:nth-of-type(even) .project__body { direction: rtl; }
  .project:nth-of-type(even) .project__body > * { direction: ltr; }
}

.project__title {
  font-family: var(--mono); font-weight: 700;
  font-size: clamp(1.6rem, 2.6vw, 2.1rem); letter-spacing: -0.015em;
  margin: 0 0 0.4rem; color: var(--ink); text-transform: uppercase;
}
.project__what {
  font-family: var(--sans); font-weight: 400;
  font-size: 1.02rem; line-height: 1.55; color: var(--ink);
  margin: 0.5rem 0 0; max-width: 56ch;
}
.project__meta {
  font-family: var(--mono); font-size: 11px;
  color: var(--ink-soft); text-transform: uppercase; letter-spacing: 0.08em;
  margin-top: 1rem; line-height: 1.7;
}
.project__meta .k { color: var(--ink-faint); margin-right: 6px; }
.project__link {
  display: inline-block; margin-top: 1.1rem;
  font-family: var(--mono); font-size: 12.5px; font-weight: 500;
  color: var(--ink); border: 1.5px solid var(--ink); padding: 8px 14px;
  text-transform: uppercase; letter-spacing: 0.1em;
}
.project__link:hover { background: var(--accent); color: var(--paper); border-color: var(--accent); }

/* ---- more builds (SECTION C) ---- */
.builds {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 0 clamp(2rem, 4vw, 3.5rem);
}
@media (max-width: 760px) { .builds { grid-template-columns: 1fr; } }
.build {
  padding-block: 1.4rem; border-top: 1px solid var(--line-faint);
  display: grid; grid-template-columns: 2.6rem 1fr; gap: 14px;
}
.build .fig {
  font-family: var(--mono); font-size: 11px; font-weight: 700;
  color: var(--accent); text-transform: uppercase; letter-spacing: 0.08em;
  padding-top: 4px;
}
.build dt {
  font-family: var(--mono); font-size: 1rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.02em;
}
.build dt .tag {
  font-family: var(--mono); font-size: 9.5px; font-weight: 700;
  color: var(--ink-faint); border: 1px solid var(--line);
  padding: 1px 6px; letter-spacing: 0.08em; margin-left: 6px; vertical-align: middle;
}
.build dd { margin: 0.4rem 0 0; color: var(--ink); font-size: 0.96rem; line-height: 1.5; }

/* ---- operator track (SECTION D) ---- */
.operator { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(1.5rem, 3vw, 2.5rem); }
@media (max-width: 760px) { .operator { grid-template-columns: 1fr; } }
.op {
  border: 1.5px solid var(--ink); padding: clamp(1rem, 2vw, 1.5rem);
  background: color-mix(in oklch, var(--paper) 94%, transparent);
}
.op__fig {
  font-family: var(--mono); font-size: 11px; font-weight: 600;
  color: var(--accent); text-transform: uppercase; letter-spacing: 0.12em;
  margin-bottom: 8px; display: block;
}
.op__title { font-family: var(--mono); font-size: 1.05rem; font-weight: 700; text-transform: uppercase; margin: 0 0 4px; }
.op__role { font-family: var(--mono); font-size: 11px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--ink-soft); margin: 0 0 10px; }
.op__years { font-family: var(--mono); font-size: 10.5px; color: var(--accent-deep); float: right; }
.op__text { font-family: var(--sans); font-size: 0.96rem; line-height: 1.55; color: var(--ink); margin: 0; }

/* ---- contact (SECTION E) ---- */
.contact-grid {
  display: grid; grid-template-columns: 1.2fr 1fr;
  gap: clamp(1.5rem, 4vw, 3rem); align-items: start;
}
@media (max-width: 760px) { .contact-grid { grid-template-columns: 1fr; } }
.contact-lead {
  font-family: var(--sans); font-size: clamp(1.05rem, 1.5vw, 1.2rem); line-height: 1.55;
  max-width: 50ch;
}
.contact-spec {
  font-family: var(--mono); font-size: 13px; line-height: 1.7;
  border: 1.5px solid var(--ink); padding: clamp(1rem, 2vw, 1.5rem);
}
.contact-spec dt {
  color: var(--ink-faint); text-transform: uppercase; font-size: 10.5px; letter-spacing: 0.12em; padding-top: 8px;
}
.contact-spec dd { margin: 0 0 6px; color: var(--ink); }
.contact-spec dd a { color: var(--ink); border-bottom: 1px solid var(--line); }

/* ---- reveal motion ---- */
[data-reveal] {
  opacity: 0; transform: translateY(10px);
  transition: opacity 0.8s cubic-bezier(.22,1,.36,1), transform 0.8s cubic-bezier(.22,1,.36,1);
}
[data-reveal].is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  [data-reveal] { opacity: 1; transform: none; transition: none; }
}

/* ---- bottom title block ---- */
.foot {
  font-family: var(--mono);
  font-size: 11px; color: var(--ink); text-transform: uppercase; letter-spacing: 0.1em;
  border-top: 1.5px solid var(--ink);
  display: grid; grid-template-columns: 1fr auto auto auto;
  gap: clamp(0.75rem, 2vw, 1.75rem); align-items: baseline;
  padding: 14px clamp(1rem, 4vw, 2rem);
  margin-top: clamp(4rem, 8vw, 6rem);
}
.foot .sep { color: var(--ink-faint); }