/* Soldermask green, silkscreen white and ENIG gold; light theme is white soldermask. */
:root {
  color-scheme: dark;
  --bg: #0e2a21;
  --sunk: #0a211a;
  --surface: #123429;
  --line: rgba(231, 240, 233, 0.13);
  --line-strong: rgba(231, 240, 233, 0.26);
  --text: #edf2ec;
  --muted: #a3b9ae;
  --accent: #d9b25a;
  --accent-ink: #1d1705;
  --trace: #19463a;
  --via: #235a48;
  --shadow: rgba(0, 10, 6, 0.5);
  --media-glow: rgba(255, 255, 255, 0.05);

  --amber: #ffb547;
  --glass: #07120e;

  --font-display: "Michroma", "Eurostile", "Arial", sans-serif;
  --font-body: "Barlow", system-ui, sans-serif;
  --font-cond: "Barlow Semi Condensed", "Barlow", system-ui, sans-serif;

  --gutter: clamp(16px, 4vw, 40px);
  --radius: 6px;
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    color-scheme: light;
    --bg: #eef2ee;
    --sunk: #e0e8e2;
    --surface: #fbfcfa;
    --line: rgba(14, 42, 33, 0.13);
    --line-strong: rgba(14, 42, 33, 0.28);
    --text: #0f2a21;
    --muted: #4b6358;
    --accent: #8a6410;
    --accent-ink: #fffaf0;
    --trace: #d4ded8;
    --via: #c0cfc6;
    --shadow: rgba(14, 42, 33, 0.18);
    --media-glow: rgba(255, 255, 255, 0.7);
  }
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #eef2ee;
  --sunk: #e0e8e2;
  --surface: #fbfcfa;
  --line: rgba(14, 42, 33, 0.13);
  --line-strong: rgba(14, 42, 33, 0.28);
  --text: #0f2a21;
  --muted: #4b6358;
  --accent: #8a6410;
  --accent-ink: #fffaf0;
  --trace: #d4ded8;
  --via: #c0cfc6;
  --shadow: rgba(14, 42, 33, 0.18);
  --media-glow: rgba(255, 255, 255, 0.7);
}

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

[hidden] {
  display: none !important;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: 96px;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent);
}

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

svg {
  display: block;
}

.wrap {
  width: 100%;
  max-width: 1240px;
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: 8px;
  left: 8px;
  z-index: 20;
  padding: 8px 14px;
  background: var(--accent);
  color: var(--accent-ink);
  border-radius: var(--radius);
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: none;
}

/* ------------------------------------------------------------------ hero */

.hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(72px, 11vw, 136px) clamp(56px, 8vw, 104px);
}

.hero-traces {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  -webkit-mask-image: linear-gradient(90deg, transparent 18%, #000 62%);
  mask-image: linear-gradient(90deg, transparent 18%, #000 62%);
}

.hero-traces .traces {
  fill: none;
  stroke: var(--trace);
  stroke-width: 5;
  stroke-linejoin: round;
}

.hero-traces .vias {
  fill: var(--bg);
  stroke: var(--via);
  stroke-width: 4;
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(40px, 6vw, 88px);
  align-items: center;
}

.hero-name {
  margin: 0 0 0.3em;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(2.5rem, 7.2vw, 5.4rem);
  line-height: 1.05;
  letter-spacing: -0.01em;
}

.hero-role {
  margin: 0 0 0.9rem;
  font-family: var(--font-cond);
  font-weight: 600;
  font-size: clamp(1.25rem, 2.2vw, 1.55rem);
  line-height: 1.25;
}

.hero-intro {
  max-width: 34em;
  margin: 0 0 2rem;
  color: var(--muted);
  font-size: 1.125rem;
}

.hero-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 18px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: transparent;
  color: var(--text);
  font: 500 1rem/1.2 var(--font-body);
  text-decoration: none;
  cursor: pointer;
  transition: border-color 0.15s, background-color 0.15s;
}

.button svg {
  width: 18px;
  height: 18px;
}

.button:hover {
  border-color: var(--accent);
}

.button-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-ink);
}

.button-primary:hover {
  background: color-mix(in srgb, var(--accent) 86%, var(--text));
}

.theme-toggle {
  position: absolute;
  top: 20px;
  right: var(--gutter);
  z-index: 2;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  padding: 0;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--text);
  cursor: pointer;
}

.theme-toggle:hover {
  border-color: var(--accent);
}

.theme-toggle svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
}

.theme-toggle[data-mode="dark"] .icon-moon,
.theme-toggle[data-mode="light"] .icon-sun {
  display: none;
}

/* The instrument display: a bezel with four screws around an amber readout. */
.display {
  position: relative;
  margin: 0;
  padding: 22px;
  border-radius: 10px;
  background:
    radial-gradient(circle at 11px 11px, #6f7571 0 3px, #2a2f2c 3.5px 4.5px, transparent 5px),
    radial-gradient(circle at calc(100% - 11px) 11px, #6f7571 0 3px, #2a2f2c 3.5px 4.5px, transparent 5px),
    radial-gradient(circle at 11px calc(100% - 11px), #6f7571 0 3px, #2a2f2c 3.5px 4.5px, transparent 5px),
    radial-gradient(circle at calc(100% - 11px) calc(100% - 11px), #6f7571 0 3px, #2a2f2c 3.5px 4.5px, transparent 5px),
    linear-gradient(160deg, #3a403c, #1c201e 55%, #151816);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.12),
    inset 0 -1px 0 rgba(0, 0, 0, 0.5),
    0 24px 48px -12px var(--shadow);
}

.display-glass {
  position: relative;
  min-height: 11.5em;
  padding: 20px 22px;
  border-radius: 4px;
  background:
    repeating-linear-gradient(0deg, rgba(0, 0, 0, 0.22) 0 1px, transparent 1px 3px),
    radial-gradient(120% 90% at 30% 20%, #0d1f18, var(--glass));
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.05), inset 0 10px 30px rgba(0, 0, 0, 0.7);
  color: var(--amber);
  font-family: var(--font-cond);
  font-weight: 500;
  font-size: clamp(0.98rem, 1.7vw, 1.2rem);
  line-height: 1.5;
  letter-spacing: 0.035em;
  font-variant-numeric: tabular-nums;
  text-shadow: 0 0 7px rgba(255, 181, 71, 0.45);
  overflow-wrap: break-word;
}

.line {
  margin: 0;
}

.line-query {
  color: color-mix(in srgb, var(--amber) 62%, transparent);
}

.line-reply {
  margin-bottom: 0.55em;
}

.nowrap,
.line-reply a {
  white-space: nowrap;
}

.line-reply a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 181, 71, 0.35);
}

.line-reply a:hover {
  border-bottom-color: var(--amber);
}

.prompt {
  opacity: 0.7;
}

.cursor {
  display: inline-block;
  width: 0.6em;
  height: 1.05em;
  vertical-align: -0.15em;
  background: var(--amber);
  box-shadow: 0 0 8px rgba(255, 181, 71, 0.6);
  animation: blink 1.1s steps(1) infinite;
}

.display-glass .pending,
.display-glass .line.is-hidden {
  visibility: hidden;
}

@keyframes blink {
  50% {
    opacity: 0;
  }
}

/* Hidden until app.js starts typing; revealed anyway if the script never runs. */
@media (prefers-reduced-motion: no-preference) {
  .js .display-glass:not(.is-playing) .line {
    visibility: hidden;
    animation: reveal 0s 2.5s forwards;
  }
}

@keyframes reveal {
  to {
    visibility: visible;
  }
}

/* --------------------------------------------------------------- toolbar */

.projects:focus {
  outline: none;
}

.toolbar {
  position: relative;
  z-index: 5;
  border-block: 1px solid var(--line);
  background: var(--bg);
}

.toolbar-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 24px;
  padding-block: 14px;
}

.projects-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.15rem;
  line-height: 1.2;
}

.filters,
.controls {
  display: none;
}

.js .filters,
.js .controls {
  display: flex;
}

.filters {
  gap: 6px;
  min-width: 0;
  margin: 0;
  padding: 0;
  border: 0;
  overflow-x: auto;
  scrollbar-width: none;
}

.chip {
  position: relative;
  flex: none;
}

.chip input {
  position: absolute;
  inset: 0;
  margin: 0;
  opacity: 0;
  cursor: pointer;
}

.chip > span {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 6px 12px;
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  color: var(--text);
  font-family: var(--font-cond);
  font-weight: 500;
  font-size: 0.98rem;
  line-height: 1.3;
  white-space: nowrap;
  transition: border-color 0.15s, background-color 0.15s;
}

.chip:hover > span {
  border-color: var(--accent);
}

.chip input:checked + span {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-ink);
}

.chip input:focus-visible + span {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.chip-count {
  font-variant-numeric: tabular-nums;
  opacity: 0.72;
}

.controls {
  gap: 10px;
  margin-left: auto;
}

.search {
  position: relative;
}

.search svg {
  position: absolute;
  top: 50%;
  left: 11px;
  width: 16px;
  height: 16px;
  translate: 0 -50%;
  fill: none;
  stroke: var(--muted);
  stroke-width: 1.6;
  stroke-linecap: round;
  pointer-events: none;
}

.search input,
.sort select {
  height: 38px;
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  background: var(--sunk);
  color: var(--text);
  font: 400 1rem/1 var(--font-body);
}

.search input {
  width: 220px;
  padding: 0 12px 0 34px;
}

.search input::placeholder {
  color: var(--muted);
}

.sort select {
  padding: 0 10px;
  cursor: pointer;
}

.search input:hover,
.sort select:hover {
  border-color: var(--accent);
}

@media (min-width: 900px) {
  .toolbar {
    position: sticky;
    top: 0;
    background: color-mix(in srgb, var(--bg) 88%, transparent);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
  }
}

/* ------------------------------------------------------------------ grid */

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 320px), 1fr));
  gap: 22px;
  margin: 0;
  padding: 28px 0 80px;
  list-style: none;
}

.card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  overflow: hidden;
  transition: border-color 0.2s;
}

.card:hover {
  border-color: color-mix(in srgb, var(--accent) 65%, transparent);
}

.card:has(.card-title a:focus-visible) {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.card-media {
  position: relative;
  display: grid;
  place-items: center;
  aspect-ratio: 16 / 10;
  border-bottom: 1px solid var(--line);
  background: radial-gradient(90% 80% at 50% 40%, var(--media-glow), transparent 70%), var(--sunk);
  overflow: hidden;
}

.card-media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
}

.card-media[data-fit="render"] img {
  padding: 7% 8%;
  object-fit: contain;
  object-position: center;
  filter: drop-shadow(0 12px 14px var(--shadow));
}

.card-media[data-fit="portrait"] img {
  top: 8%;
  left: 50%;
  width: auto;
  max-width: 70%;
  height: 84%;
  translate: -50% 0;
  border-radius: 10px;
  object-fit: contain;
  box-shadow: 0 12px 26px var(--shadow), 0 0 0 1px var(--line);
}

/* Hardware cards carry the gold fingers of a eurocard edge connector. */
.card[data-category="hardware"] .card-media::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  width: 44%;
  height: 5px;
  translate: -50% 0;
  background: repeating-linear-gradient(90deg, var(--accent) 0 5px, transparent 5px 9px);
  opacity: 0.85;
}

/* No preview image: the project becomes a QFP package marked with its initials. */
.package {
  position: relative;
  display: grid;
  place-items: center;
  width: 30%;
  aspect-ratio: 1;
  border-radius: 5px;
  background: linear-gradient(145deg, #2b312e, #151917);
  box-shadow: 0 10px 20px var(--shadow), inset 0 1px 0 rgba(255, 255, 255, 0.08);
  color: #c9d2cd;
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2.2vw, 1.5rem);
  letter-spacing: 0.06em;
}

.package::before {
  content: "";
  position: absolute;
  inset: -11px;
  --pins: repeating-linear-gradient(90deg, #b9b4a4 0 4px, transparent 4px 11px);
  --pins-v: repeating-linear-gradient(180deg, #b9b4a4 0 4px, transparent 4px 11px);
  background:
    var(--pins) center top / 72% 11px no-repeat,
    var(--pins) center bottom / 72% 11px no-repeat,
    var(--pins-v) left center / 11px 72% no-repeat,
    var(--pins-v) right center / 11px 72% no-repeat;
}

.package::after {
  content: "";
  position: absolute;
  top: 12%;
  left: 12%;
  width: 9%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.45);
  box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.6);
}

.card-body {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: 10px;
  padding: 16px 18px;
}

.card-title {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 10px;
  margin: 0;
  font-family: var(--font-cond);
  font-weight: 600;
  font-size: 1.3rem;
  line-height: 1.2;
  overflow-wrap: anywhere;
}

.card-title a {
  color: inherit;
  text-decoration: none;
}

.card-title a:focus-visible {
  outline: none;
}

.card-title a::after {
  content: "";
  position: absolute;
  inset: 0;
}

.badge {
  padding: 1px 7px;
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  color: var(--muted);
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.78rem;
}

.card-fork {
  position: relative;
  z-index: 1;
  margin: -4px 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.card-desc {
  display: -webkit-box;
  margin: 0;
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.5;
  overflow: hidden;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 2px 0 0;
  padding: 0;
  list-style: none;
}

.tags li {
  padding: 1px 8px;
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  color: var(--muted);
  font-family: var(--font-cond);
  font-weight: 500;
  font-size: 0.86rem;
}

.card-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 16px;
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.9rem;
}

.card-meta {
  display: inline-flex;
  align-items: center;
  gap: 14px;
}

.stars {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.stars svg {
  width: 13px;
  height: 13px;
}

.card-links {
  position: relative;
  z-index: 1;
  display: flex;
  gap: 16px;
}

.card-links a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 500;
  text-decoration: none;
}

.card-links a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.card-links svg {
  width: 15px;
  height: 15px;
}

.empty {
  padding: 48px 0 96px;
  text-align: center;
  color: var(--muted);
}

.empty p {
  margin: 0 0 16px;
  font-size: 1.1rem;
}

/* ---------------------------------------------------------------- footer */

.footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.95rem;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 24px;
  padding-block: 28px 40px;
}

.footer p {
  margin: 0;
}

/* ---------------------------------------------------------------- layout */

@media (max-width: 860px) {
  .hero-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-traces {
    -webkit-mask-image: linear-gradient(180deg, transparent 30%, #000 85%);
    mask-image: linear-gradient(180deg, transparent 30%, #000 85%);
  }

  .display {
    max-width: 560px;
  }
}

@media (max-width: 640px) {
  .projects-title {
    width: 100%;
  }

  .filters {
    margin-inline: calc(var(--gutter) * -1);
    padding-inline: var(--gutter);
    width: calc(100% + var(--gutter) * 2);
  }

  .controls {
    width: 100%;
    margin-left: 0;
  }

  .search {
    flex: 1;
  }

  .search input {
    width: 100%;
  }
}

::view-transition-group(*) {
  animation-duration: 0.28s;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}