@import url("https://fonts.googleapis.com/css2?family=Share+Tech+Mono&family=Noto+Sans+JP:wght@400;500;700;900&display=swap");

:root {
  --bg: #070b12;
  --bg-deep: #0a1018;
  --ink: #c5d4e0;
  --ink-strong: #e8f4ff;
  --muted: #7a93a8;
  --line: rgba(94, 234, 212, 0.22);
  --accent: #5eead4;
  --accent-dim: rgba(94, 234, 212, 0.12);
  --led: #c8ff3d;
  --led-dim: rgba(200, 255, 61, 0.12);
  --led-glow: 0 0 8px rgba(200, 255, 61, 0.55), 0 0 22px rgba(200, 255, 61, 0.25);
  --accent-glow: 0 0 10px rgba(94, 234, 212, 0.45), 0 0 28px rgba(94, 234, 212, 0.18);
  --surface: rgba(94, 234, 212, 0.04);
  --max: 42rem;
  --font: "Noto Sans JP", "Hiragino Sans", "Yu Gothic UI", Meiryo, sans-serif;
  --mono: "Share Tech Mono", ui-monospace, Consolas, monospace;
  --grid-a: rgba(94, 234, 212, 0.055);
  --grid-b: rgba(200, 255, 61, 0.03);
}

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

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--ink);
  background:
    radial-gradient(ellipse 70% 45% at 15% -5%, rgba(200, 255, 61, 0.07), transparent 55%),
    radial-gradient(ellipse 55% 40% at 95% 5%, rgba(94, 234, 212, 0.1), transparent 50%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-deep) 100%);
  position: relative;
  overflow-x: hidden;
}

/* Grid overlay — soft on mobile, stronger on desktop */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--grid-a) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-a) 1px, transparent 1px),
    linear-gradient(var(--grid-b) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-b) 1px, transparent 1px);
  background-size: 48px 48px, 48px 48px, 12px 12px, 12px 12px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 30%, #000 25%, transparent 85%);
  opacity: 0.7;
}

@media (min-width: 1024px) {
  :root {
    --grid-a: rgba(94, 234, 212, 0.09);
    --grid-b: rgba(200, 255, 61, 0.045);
  }

  body::before {
    background-size: 56px 56px, 56px 56px, 14px 14px, 14px 14px;
    opacity: 1;
  }
}

/* Slow scan line */
body::after {
  content: "";
  position: fixed;
  top: -100%;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0.35;
  z-index: 1;
  pointer-events: none;
  animation: scan 7s linear infinite;
}

@keyframes scan {
  0% { top: -5%; }
  100% { top: 105%; }
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  color: var(--led);
}

.site-shell {
  position: relative;
  z-index: 2;
}

.container {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

.site-header {
  padding: 1.1rem 0 0;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.header-inner-end {
  justify-content: flex-end;
}

.brand {
  color: var(--ink-strong);
  font-weight: 700;
  letter-spacing: 0.04em;
  font-size: 0.95rem;
}

.brand:hover {
  color: var(--led);
  text-decoration: none;
}

.status-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--led);
  border: 1px solid rgba(200, 255, 61, 0.4);
  background: var(--led-dim);
  padding: 0.28rem 0.7rem;
  animation: pulse-border 2.2s ease-in-out infinite;
}

.status-dot {
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--led);
  box-shadow: var(--led-glow);
  animation: pulse-dot 1.8s ease-in-out infinite;
}

.status-unknown {
  color: var(--muted);
  border-color: rgba(122, 147, 168, 0.45);
  background: rgba(122, 147, 168, 0.08);
  animation: none;
  box-shadow: none;
}

.status-unknown .status-dot {
  background: #6b7c8d;
  box-shadow: none;
  animation: blink-unknown 2.8s steps(1, end) infinite;
}

@keyframes blink-unknown {
  0%, 100% { opacity: 0.35; }
  50% { opacity: 0.9; }
}

@keyframes pulse-border {
  0%, 100% { box-shadow: 0 0 4px rgba(200, 255, 61, 0.25); }
  50% { box-shadow: var(--led-glow); }
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.65; transform: scale(0.85); }
}

.hero {
  padding: 3.25rem 0 2.25rem;
}

@media (min-width: 1024px) {
  .hero {
    padding-top: 4.25rem;
  }
}

.hero-meta {
  margin: 0 0 1.1rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: rgba(94, 234, 212, 0.65);
}

.brand-hero-row {
  --brand-qr-size: clamp(2.55rem, 8.5vw, 3.35rem);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--brand-qr-size);
  margin: 0 0 0.85rem;
}

.brand-hero {
  margin: 0 0 0.85rem;
  font-size: clamp(2.6rem, 9vw, 3.75rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1.05;
  color: var(--ink-strong);
  text-shadow: 0 0 28px rgba(94, 234, 212, 0.25);
}

.brand-hero-row .brand-hero {
  margin: 0;
}

.brand-qrs {
  display: inline-flex;
  align-items: center;
  gap: calc(var(--brand-qr-size) / 2);
}

.brand-qr {
  position: relative;
  display: grid;
  place-items: center;
  width: var(--brand-qr-size);
  height: var(--brand-qr-size);
  padding: 0.18rem;
  background: #f4f8fb;
  border: 1px solid rgba(94, 234, 212, 0.35);
  color: #0a1018;
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.2), var(--accent-glow);
  transition: transform 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}

.brand-qr:hover {
  color: #0a1018;
  text-decoration: none;
  border-color: rgba(200, 255, 61, 0.65);
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.2), var(--led-glow);
  transform: translateY(-1px);
}

.brand-qr-image {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.brand-qr-mark {
  position: absolute;
  inset: 50%;
  width: 28%;
  height: 28%;
  transform: translate(-50%, -50%);
  display: grid;
  place-items: center;
  background: #f4f8fb;
  border-radius: 0.12rem;
  color: #0a1018;
  pointer-events: none;
}

.brand-qr-mark svg {
  width: 78%;
  height: 78%;
  display: block;
}

.lead {
  margin: 0 0 1.75rem;
  color: var(--muted);
  font-size: 1.05rem;
  max-width: 28rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  padding: 0.55rem 1.2rem;
  border-radius: 0.2rem;
  background: var(--led);
  color: #0a1208;
  font-weight: 700;
  letter-spacing: 0.02em;
  box-shadow: var(--led-glow);
  transition: transform 0.15s ease, box-shadow 0.15s ease, filter 0.15s ease;
}

.button:hover {
  color: #0a1208;
  text-decoration: none;
  filter: brightness(1.05);
  box-shadow: 0 0 12px rgba(200, 255, 61, 0.7), 0 0 32px rgba(200, 255, 61, 0.35);
  transform: translateY(-1px);
}

.button-ghost {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--line);
  box-shadow: none;
}

.button-ghost:hover {
  background: var(--accent-dim);
  color: var(--ink-strong);
  border-color: rgba(94, 234, 212, 0.5);
  box-shadow: var(--accent-glow);
  filter: none;
  transform: translateY(-1px);
}

.section-label {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 0 0 0.65rem;
}

.section-label-spaced {
  /* 余白は見出しの上側だけ増やす（下は詰め気味） */
  margin-top: 0;
  margin-bottom: 0.55rem;
  padding-top: 3.5rem;
}

.section-label .tag {
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.16em;
  color: var(--led);
  border: 1px solid rgba(200, 255, 61, 0.35);
  background: var(--led-dim);
  padding: 0.2rem 0.55rem;
}

.section-label h2 {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.85rem;
  font-weight: 400;
  letter-spacing: 0.16em;
  color: var(--ink-strong);
}

.project-static {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 1.05rem 0.2rem 1.05rem 0.75rem;
  border-left: 2px solid transparent;
  opacity: 0.72;
}

.activity {
  padding: 0.5rem 0 1.5rem;
}

.contrib-link {
  display: block;
  color: inherit;
}

.contrib-link:hover {
  text-decoration: none;
}

.contrib-frame {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  padding: 1rem 0.85rem;
  border: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.28);
  border-left: 2px solid rgba(200, 255, 61, 0.55);
}

.contrib-link:hover .contrib-frame {
  border-color: rgba(94, 234, 212, 0.45);
  box-shadow: var(--accent-glow);
}

.contrib-chart {
  display: block;
  width: max(100%, 36rem);
  height: auto;
  /* CSS-only darken: white empty cells tone down; greens also dim a bit */
  filter:
    brightness(0.52)
    contrast(1.28)
    saturate(1.45)
    drop-shadow(0 0 10px rgba(200, 255, 61, 0.18));
}

.contrib-note {
  margin: 0.55rem 0 0;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.media-block {
  padding: 0.5rem 0 1.5rem;
}

.media-figure {
  margin: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
}

.media-image {
  display: block;
  width: auto;
  max-width: min(100%, 28rem);
  height: auto;
  margin-inline: auto;
  image-rendering: auto;
}

.project-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.project-list li {
  border-bottom: 1px solid var(--line);
}

.project-list a {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 1.05rem 0.2rem 1.05rem 0.75rem;
  color: inherit;
  border-left: 2px solid transparent;
  transition: border-color 0.15s ease, background 0.15s ease, transform 0.15s ease;
}

.project-list a:hover {
  text-decoration: none;
  border-left-color: var(--led);
  background: var(--surface);
  transform: translateX(3px);
}

.project-list a:hover .project-name {
  color: var(--led);
}

.project-id {
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  color: rgba(94, 234, 212, 0.55);
}

.project-name {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--ink-strong);
}

.project-desc {
  color: var(--muted);
  font-size: 0.95rem;
}

.hero-compact {
  padding-bottom: 1.5rem;
}

.brand-hero-sm {
  font-size: clamp(1.6rem, 5vw, 2.35rem);
  letter-spacing: -0.02em;
  line-height: 1.25;
}

.memo-body {
  padding: 0.5rem 0 4rem;
}

.memo-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 3px solid rgba(200, 255, 61, 0.55);
  padding: 1.35rem 1.25rem 1.5rem;
}

.memo-meta {
  margin: 0 0 1.25rem;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: rgba(94, 234, 212, 0.55);
}

.memo-h {
  margin: 1.35rem 0 0.55rem;
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0.14em;
  color: var(--led);
}

.memo-h:first-of-type {
  margin-top: 0;
}

.memo-card p {
  margin: 0 0 0.85rem;
  color: var(--ink);
  line-height: 1.8;
}

.memo-card p:last-child {
  margin-bottom: 0;
}

.memo-list {
  margin: 0 0 0.5rem;
  padding: 0;
  list-style: none;
}

.memo-list li {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.35rem 0.85rem;
  padding: 0.45rem 0 0.45rem 1rem;
  color: var(--ink);
  border-bottom: 1px solid rgba(94, 234, 212, 0.1);
  font-family: var(--mono);
  font-size: 0.88rem;
  letter-spacing: 0.02em;
}

.memo-list li::before {
  content: ">";
  position: absolute;
  left: 0;
  color: rgba(200, 255, 61, 0.55);
}

.memo-list li:last-child {
  border-bottom: none;
}

.memo-spec {
  flex: 1 1 12rem;
  min-width: 0;
  user-select: text;
}

.memo-ext {
  flex: 0 0 auto;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--accent);
  border-bottom: 1px solid rgba(94, 234, 212, 0.35);
}

.memo-ext:hover {
  color: var(--led);
  border-bottom-color: rgba(200, 255, 61, 0.55);
  text-decoration: none;
}

.memo-pre {
  margin: 0;
  padding: 0.9rem 1rem;
  overflow-x: auto;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(94, 234, 212, 0.18);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 0.82rem;
  line-height: 1.7;
  white-space: pre-wrap;
}

.memo-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.memo-table {
  width: 100%;
  border-collapse: collapse;
  /* Share Tech Mono は表だと詰まりやすいので、システム等幅寄りにする */
  font-family: Consolas, "Cascadia Mono", "Segoe UI Mono", ui-monospace, monospace;
  font-size: 0.88rem;
  letter-spacing: 0.02em;
}

.memo-table th,
.memo-table td {
  padding: 0.55rem 0.65rem;
  text-align: left;
  border-bottom: 1px solid rgba(94, 234, 212, 0.12);
  vertical-align: top;
  font-family: inherit;
  font-size: inherit;
}

.memo-table th {
  color: var(--led);
  font-weight: 400;
  letter-spacing: 0.1em;
  border-bottom-color: rgba(200, 255, 61, 0.35);
  white-space: nowrap;
}

.memo-table td {
  color: var(--ink);
}

.memo-table td:last-child {
  text-align: right;
  white-space: nowrap;
  color: var(--ink-strong);
}

.memo-table td:nth-last-child(2) {
  text-align: right;
  white-space: nowrap;
  color: var(--ink-strong);
}

.memo-table th:last-child,
.memo-table td:last-child {
  text-align: right;
  width: 3.5rem;
}

.memo-pn {
  color: var(--ink-strong);
  letter-spacing: 0.04em;
  user-select: all;
}

.memo-table tbody tr:last-child td {
  border-bottom: none;
}

.memo-table tbody tr:hover td {
  background: rgba(94, 234, 212, 0.04);
}

.contact {
  padding: 0 0 3rem;
}

.contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.contact-list li {
  border-bottom: 1px solid var(--line);
}

.contact-link {
  display: flex;
  align-items: baseline;
  gap: 0.85rem;
  padding: 0.95rem 0.2rem 0.95rem 0.75rem;
  color: inherit;
  border-left: 2px solid transparent;
  transition: border-color 0.15s ease, background 0.15s ease, transform 0.15s ease;
}

.contact-link:hover {
  text-decoration: none;
  border-left-color: var(--led);
  background: var(--surface);
  transform: translateX(3px);
}

.contact-id {
  flex: 0 0 3.5rem;
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  color: rgba(94, 234, 212, 0.55);
}

.contact-name {
  font-family: var(--mono);
  font-size: 0.92rem;
  color: var(--ink-strong);
  letter-spacing: 0.02em;
}

.contact-link:hover .contact-name {
  color: var(--led);
}

.about-body {
  padding: 0 0 3rem;
}

.about-prose {
  margin: 0 0 0.5rem;
  max-width: 36rem;
}

.about-prose p {
  margin: 0 0 1rem;
  color: var(--ink);
}

.about-address {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  margin: 0;
  padding: 0.95rem 0.2rem 0.95rem 0.75rem;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  border-left: 2px solid var(--led);
  font-style: normal;
  font-family: var(--mono);
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--ink-strong);
  letter-spacing: 0.02em;
}

.about-address-name {
  margin-bottom: 0.35rem;
  color: var(--led);
  letter-spacing: 0.08em;
}

.lang-nav {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
}

.lang-sep {
  color: var(--muted);
  opacity: 0.6;
}

.lang-link {
  color: var(--muted);
}

.lang-link:hover,
.lang-link.is-current {
  color: var(--led);
  text-decoration: none;
}

.footer-row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
}

.footer-nav {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 0.85rem 1.1rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
}

.footer-nav a {
  color: var(--muted);
}

.footer-nav a:hover {
  color: var(--led);
  text-decoration: none;
}

.site-footer {
  padding: 2rem 0 2.5rem;
  color: var(--muted);
  font-size: 0.8rem;
  font-family: var(--mono);
  letter-spacing: 0.06em;
}

.site-footer p {
  margin: 0;
}