/* ==========================================================
   AYXR — minimal monochrome tech aesthetic
   ========================================================== */

:root {
  --bg: #000000;
  --bg-soft: #0a0a0a;
  --fg: #ffffff;
  --fg-dim: #888888;
  --fg-dimmer: #555555;
  --line: #1a1a1a;
  --line-strong: #2a2a2a;
  --accent: #ffffff;
  --grid-line: rgba(255,255,255,0.025);
  --logo-glow: rgba(255,255,255,0.08);
  --header-bg: rgba(0,0,0,0.7);
  --noise-blend: overlay;
  --gutter: clamp(20px, 4vw, 48px);
  --max: 1280px;
  --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --sans: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

[data-theme="light"] {
  --bg: #ffffff;
  --bg-soft: #f6f6f6;
  --fg: #000000;
  --fg-dim: #6a6a6a;
  --fg-dimmer: #a0a0a0;
  --line: #ececec;
  --line-strong: #d4d4d4;
  --accent: #000000;
  --grid-line: rgba(0,0,0,0.035);
  --logo-glow: rgba(0,0,0,0.06);
  --header-bg: rgba(255,255,255,0.75);
  --noise-blend: multiply;
}

html { background: var(--bg); color: var(--fg); }

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--mono);
  font-size: 15px;
  line-height: 1.6;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  min-height: 100vh;
}

a {
  color: inherit;
  text-decoration: none;
  transition: opacity 0.18s ease, color 0.18s ease;
}

a:hover { opacity: 0.7; }

img, svg { display: block; max-width: 100%; }

/* ---------- background grid + noise ---------- */

.grid-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(to right, var(--grid-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-line) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 85%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 85%);
}

.noise {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  opacity: 0.04;
  mix-blend-mode: var(--noise-blend);
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px var(--gutter);
  border-bottom: 1px solid var(--line);
  background: var(--header-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.brand { display: flex; align-items: center; }
.brand-logo {
  height: 36px;
  width: auto;
  transition: transform 0.4s cubic-bezier(.2,.8,.2,1);
}
.brand:hover .brand-logo { transform: translateX(2px); }

.nav { display: flex; gap: 10px; align-items: center; }
.nav-link {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  padding: 6px 10px;
  border: 1px solid transparent;
  transition: border-color 0.18s ease, background 0.18s ease;
  white-space: nowrap;
}
.nav-link:hover {
  opacity: 1;
  border-color: var(--line-strong);
  background: var(--bg-soft);
}
.nav-link.is-active { border-color: var(--fg); }
.nav-bracket { color: var(--fg-dim); transition: color 0.18s ease; }
.nav-link:hover .nav-bracket,
.nav-link.is-active .nav-bracket { color: var(--fg); }

/* ---------- main / sections ---------- */

.main {
  position: relative;
  z-index: 2;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.section { padding: 100px 0; border-top: 1px solid var(--line); position: relative; }
.section:first-of-type { border-top: 0; }

.section-head {
  display: flex;
  align-items: baseline;
  gap: 20px;
  margin-bottom: 48px;
}
.section-num {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--fg-dim);
  letter-spacing: 0.1em;
}
.section-title {
  font-family: var(--mono);
  font-size: clamp(20px, 2.5vw, 28px);
  font-weight: 500;
  letter-spacing: -0.01em;
  margin: 0;
}

.dim { color: var(--fg-dim); }
.small { font-size: 13px; }

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

.hero {
  position: relative;
  padding: clamp(60px, 12vh, 140px) 0 80px;
  border-bottom: 1px solid var(--line);
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  font-size: 12px;
  color: var(--fg-dim);
  letter-spacing: 0.05em;
  margin-bottom: clamp(40px, 8vh, 80px);
}
.hero-meta-item { display: inline-flex; align-items: center; gap: 8px; }

.status-dot {
  display: inline-block;
  width: 6px; height: 6px;
  background: var(--fg);
  border-radius: 50%;
  box-shadow: 0 0 8px rgba(255,255,255,0.6);
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.45; transform: scale(0.85); }
}

.hero-logo-wrap {
  position: relative;
  margin-bottom: 48px;
}
.hero-logo {
  width: 100%;
  max-width: 680px;
  height: auto;
  filter: drop-shadow(0 0 60px var(--logo-glow));
}

/* logo theme swap */
.logo-light { display: none; }
[data-theme="light"] .logo-dark { display: none; }
[data-theme="light"] .logo-light { display: block; }
.brand .logo-light, .brand .logo-dark { display: none; }
.brand .logo-dark { display: block; }
[data-theme="light"] .brand .logo-dark { display: none; }
[data-theme="light"] .brand .logo-light { display: block; }

.hero-tagline {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--mono);
  font-size: clamp(16px, 2vw, 22px);
  margin-bottom: 48px;
  min-height: 1.6em;
}
.prompt { color: var(--fg-dim); }
.typed { white-space: pre; }
.cursor {
  display: inline-block;
  width: 0.55em;
  margin-left: 2px;
  animation: blink 1.05s steps(1) infinite;
  color: var(--fg);
}
@keyframes blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

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

/* ---------- buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 14px;
  padding: 12px 18px;
  border: 1px solid var(--fg);
  background: var(--fg);
  color: var(--bg);
  transition: transform 0.2s cubic-bezier(.2,.8,.2,1), background 0.2s ease, color 0.2s ease;
}
.btn:hover {
  opacity: 1;
  transform: translateY(-2px);
  background: var(--bg);
  color: var(--fg);
}
.btn-ghost {
  background: transparent;
  color: var(--fg);
}
.btn-ghost:hover {
  background: var(--fg);
  color: var(--bg);
}

/* theme toggle */
.theme-toggle {
  font-family: var(--mono);
  font-size: 13px;
  background: transparent;
  border: 1px solid var(--line-strong);
  color: var(--fg);
  padding: 6px 10px;
  cursor: pointer;
  margin-left: 8px;
  transition: border-color 0.18s ease, background 0.18s ease;
  line-height: 1;
}
.theme-toggle:hover {
  border-color: var(--fg);
  background: var(--bg-soft);
}
.theme-toggle .tt-dark { display: inline; }
.theme-toggle .tt-light { display: none; }
[data-theme="light"] .theme-toggle .tt-dark { display: none; }
[data-theme="light"] .theme-toggle .tt-light { display: inline; }
.btn-big {
  font-size: 15px;
  padding: 16px 24px;
  margin-top: 24px;
}

/* ---------- cards ---------- */

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.card {
  position: relative;
  padding: 32px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255,255,255,0.015), transparent 50%);
  transition: border-color 0.25s ease, transform 0.25s ease, background 0.25s ease;
  overflow: hidden;
}
.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(800px 200px at var(--mx, 50%) var(--my, 50%), rgba(255,255,255,0.04), transparent 60%);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}
.card:hover {
  border-color: var(--line-strong);
  transform: translateY(-3px);
}
.card:hover::before { opacity: 1; }

.card-tag {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--fg-dim);
  margin-bottom: 20px;
  padding: 3px 8px;
  border: 1px solid var(--line-strong);
}
.card-title {
  font-family: var(--sans);
  font-size: 26px;
  font-weight: 500;
  letter-spacing: -0.015em;
  margin: 0 0 14px;
}
.card-text { color: var(--fg-dim); margin: 0 0 20px; }
.card-list {
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: 13px;
  color: var(--fg);
}
.card-list li {
  padding: 8px 0;
  border-top: 1px solid var(--line);
  display: flex;
  align-items: center;
}
.card-list li::before {
  content: "+";
  margin-right: 12px;
  color: var(--fg-dim);
}

/* ---------- principles ---------- */

.principles {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 0;
  border: 1px solid var(--line);
}
.principle {
  padding: 32px;
  border-right: 1px solid var(--line);
  transition: background 0.25s ease;
}
.principle:last-child { border-right: 0; }
.principle:hover { background: var(--bg-soft); }
.principle-num {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--fg-dim);
  letter-spacing: 0.1em;
  margin-bottom: 18px;
}
.principle h3 {
  font-family: var(--sans);
  font-size: 22px;
  font-weight: 500;
  margin: 0 0 10px;
}
.principle p { color: var(--fg-dim); margin: 0; font-size: 14px; }

@media (max-width: 720px) {
  .principle { border-right: 0; border-bottom: 1px solid var(--line); }
  .principle:last-child { border-bottom: 0; }
}

/* ---------- code block ---------- */

.codeblock {
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.7;
  padding: 24px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-left: 2px solid var(--fg);
  overflow-x: auto;
  margin: 0 0 16px;
  white-space: pre;
  color: var(--fg);
}
.codeblock .kw { color: #c0c0c0; }
.codeblock .var { color: #ffffff; }
.codeblock .fn { color: #ffffff; }
.codeblock .str { color: #9a9a9a; }
.codeblock .dim { color: var(--fg-dimmer); }

/* ---------- cta block ---------- */

.cta-block { padding: 20px 0 0; }

/* ---------- page (about / contact) ---------- */

.page {
  padding: clamp(60px, 10vh, 100px) 0 60px;
}
.page-head {
  display: flex;
  align-items: baseline;
  gap: 20px;
  margin-bottom: 56px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
}
.page-title {
  font-family: var(--mono);
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 500;
  letter-spacing: -0.02em;
  margin: 0;
}

.page-body > * + * { margin-top: 64px; }
.page-body > p { margin-top: 16px; }
.page-body > p + p { margin-top: 12px; }

/* about / contact shared */

.about-hero, .contact-hero { margin-bottom: 64px; }
.about-kicker {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--fg-dim);
  letter-spacing: 0.1em;
  margin-bottom: 24px;
}
.about-h2 {
  font-family: var(--sans);
  font-size: clamp(26px, 3.5vw, 40px);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin: 0 0 24px;
  max-width: 820px;
}
.about-lede {
  font-family: var(--mono);
  font-size: clamp(15px, 1.4vw, 17px);
  color: var(--fg-dim);
  line-height: 1.7;
  margin: 0;
  max-width: 720px;
}

.kv-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0;
  border: 1px solid var(--line);
}
.kv {
  padding: 22px 24px;
  border-right: 1px solid var(--line);
}
.kv:last-child { border-right: 0; }
.kv-label {
  font-size: 11px;
  color: var(--fg-dim);
  letter-spacing: 0.12em;
  text-transform: lowercase;
  margin-bottom: 8px;
}
.kv-value {
  font-family: var(--mono);
  font-size: 15px;
}

@media (max-width: 720px) {
  .kv { border-right: 0; border-bottom: 1px solid var(--line); }
  .kv:last-child { border-bottom: 0; }
}

.about-section { margin-top: 64px; }

.two-col {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 40px;
}
.col-title {
  font-family: var(--sans);
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -0.01em;
  margin: 0 0 12px;
}
.two-col p { color: var(--fg-dim); margin: 0; }

.num-list {
  list-style: none;
  padding: 0;
  margin: 0;
  border-top: 1px solid var(--line);
}
.num-list li {
  display: flex;
  gap: 24px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}
.num-list .num {
  font-family: var(--mono);
  color: var(--fg-dim);
  font-size: 13px;
  letter-spacing: 0.1em;
  flex-shrink: 0;
  width: 36px;
}
.num-list strong { font-weight: 500; color: var(--fg); }
.num-list span:not(.num) { color: var(--fg-dim); }

.team-lede {
  font-size: 15px;
  color: var(--fg-dim);
  max-width: 720px;
  margin: 0;
}

/* contact */

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 0;
  border: 1px solid var(--line);
  margin-bottom: 64px;
}
.contact-card {
  padding: 32px;
  border-right: 1px solid var(--line);
  transition: background 0.25s ease;
  display: block;
}
.contact-card:last-child { border-right: 0; }
a.contact-card:hover { opacity: 1; background: var(--bg-soft); }

.contact-label {
  font-size: 11px;
  color: var(--fg-dim);
  letter-spacing: 0.12em;
  margin-bottom: 18px;
}
.contact-value {
  font-family: var(--mono);
  font-size: 18px;
  margin-bottom: 12px;
  word-break: break-word;
}
.contact-hint {
  font-size: 13px;
  color: var(--fg-dim);
  line-height: 1.6;
}

@media (max-width: 720px) {
  .contact-card { border-right: 0; border-bottom: 1px solid var(--line); }
  .contact-card:last-child { border-bottom: 0; }
}

.legal { padding-top: 32px; border-top: 1px solid var(--line); margin-top: 80px; }

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

.site-footer {
  position: relative;
  z-index: 2;
  max-width: var(--max);
  margin: 80px auto 0;
  padding: 48px var(--gutter) 32px;
  border-top: 1px solid var(--line);
}

.footer-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 32px;
  margin-bottom: 32px;
}
.footer-col { font-size: 13px; }
.footer-col > div + div, .footer-col > a { margin-top: 6px; display: block; }
.footer-label {
  font-size: 11px;
  color: var(--fg-dim);
  letter-spacing: 0.12em;
  margin-bottom: 12px;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  color: var(--fg-dim);
}

/* ---------- responsive nav ---------- */

@media (max-width: 540px) {
  .site-header { padding: 14px 20px; }
  .brand-logo { height: 28px; }
  .nav { gap: 4px; }
  .nav-link { padding: 5px 7px; font-size: 12px; }
}

/* ---------- reduced motion ---------- */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .cursor { animation: none; opacity: 1; }
  .status-dot { animation: none; }
}