/* ============================================================
   MICROFLUIDITY LTD — STYLES
   ============================================================ */

/* -------- TOKENS ------------------------------------------- */

:root {
  /* Color */
  --bg: #000000;
  --bg-elevated: #0d0d0d;
  --fg: #f0f0f0;
  --fg-muted: #9a9a9a;
  --fg-dim: #5a5a5a;
  --accent: #4a9eff;
  --accent-soft: rgba(74, 158, 255, 0.16);
  --accent-glow: rgba(74, 158, 255, 0.45);
  --rule: rgba(255, 255, 255, 0.08);
  --rule-strong: rgba(255, 255, 255, 0.18);

  /* Type */
  --font-mono: "Space Mono", ui-monospace, "SF Mono", "Cascadia Mono",
               "Liberation Mono", Menlo, Consolas, monospace;

  /* Spacing scale (8pt-ish) */
  --s-1: 0.25rem;
  --s-2: 0.5rem;
  --s-3: 0.75rem;
  --s-4: 1rem;
  --s-5: 1.5rem;
  --s-6: 2rem;
  --s-7: 3rem;
  --s-8: 4rem;
  --s-9: 6rem;

  /* Layout */
  --max-w: 980px;
  --header-h: 64px;

  /* Motion */
  --ease: cubic-bezier(0.2, 0.6, 0.2, 1);
}

/* -------- RESET -------------------------------------------- */

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

html {
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 1rem);
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  /* Subtle film-grain via SVG noise — adds texture without being noisy */
  background-image:
    radial-gradient(ellipse 80% 60% at 50% 0%, rgba(74, 158, 255, 0.04), transparent 60%),
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='180' height='180'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0  0 0 0 0 0  0 0 0 0 0  0 0 0 0.045 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
  background-attachment: fixed;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

a {
  color: var(--accent);
  text-decoration: none;
  text-underline-offset: 0.25em;
  transition: color 120ms var(--ease), opacity 120ms var(--ease);
}

a:hover,
a:focus-visible {
  color: var(--fg);
}

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

/* -------- A11Y UTILITIES ----------------------------------- */

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

.skip-link {
  position: absolute;
  top: 0;
  left: 1rem;
  background: var(--accent);
  color: var(--bg);
  padding: 0.5rem 1rem;
  z-index: 100;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transform: translateY(-150%);
  transition: transform 120ms var(--ease);
}

.skip-link:focus {
  transform: translateY(0.5rem);
  color: var(--bg);
}

/* -------- HEADER / NAV ------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-h);
  background: #000;
/*
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(12px) saturate(150%);
  -webkit-backdrop-filter: blur(12px) saturate(150%);
*/
  border-bottom: 1px solid var(--rule);
}

.site-nav {
  height: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--s-5);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-5);
}

.wordmark {
  color: var(--fg);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.wordmark span {
  color: var(--accent);
  font-weight: 400;
}

.nav-list {
  display: flex;
  gap: var(--s-5);
  align-items: center;
}

.nav-list a {
  color: var(--fg-muted);
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.nav-list a:hover,
.nav-list a:focus-visible {
  color: var(--fg);
}

/* -------- MAIN / HERO -------------------------------------- */

main {
  flex: 1;
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--s-5);
}

.hero {
  text-align: center;
  padding: clamp(var(--s-7), 8vw, var(--s-9)) 0 var(--s-7);
}

.company-name {
  font-size: clamp(1.75rem, 6vw, 3.25rem);
  font-weight: 500;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  margin: 0;
  line-height: 1.1;
  /* opening reveal */
  animation: fadeUp 600ms var(--ease) both;
}

.tagline {
  margin: var(--s-3) 0 0;
  color: var(--accent);
  font-size: clamp(0.875rem, 2.4vw, 1.125rem);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  animation: fadeUp 600ms var(--ease) 120ms both;
}

.tagline .cursor {
  display: inline-block;
  margin-left: 0.15em;
  animation: blink 1.05s steps(1) infinite;
  color: var(--accent);
}

@keyframes blink {
  0%, 49% { opacity: 1; }
  50%, 100% { opacity: 0; }
}

.hero-figure {
  margin: var(--s-6) auto 0;
  max-width: 720px;
  animation: fadeUp 800ms var(--ease) 200ms both;
}

.hero-image {
  width: 100%;
  height: auto;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .company-name,
  .tagline,
  .hero-figure {
    animation: none;
  }
  .tagline .cursor {
    animation: none;
    opacity: 0.6;
  }
  html {
    scroll-behavior: auto;
  }
}

/* -------- PRODUCTS ----------------------------------------- */

.products {
  padding: var(--s-7) 0 var(--s-8);
/*
  border-top: 1px dashed var(--rule);
*/
}

.section-label {
  font-size: 0.8125rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  color: var(--fg-dim);
  text-transform: uppercase;
  margin: 0 0 var(--s-5);
}

.section-label span {
  color: var(--accent);
}

.product-list {
  display: flex;
  flex-direction: column;
  gap: var(--s-6);
}

.product-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--s-3);
}

.product-card {
  position: relative;
  display: block;
  width: 100%;
  max-width: 580px;
  border-radius: 12px;
  overflow: hidden;
  /* The image carries the visual; we add a focus ring + glow on interaction */
  box-shadow: 0 0 0 1px var(--rule);
  transition:
    transform 220ms var(--ease),
    box-shadow 220ms var(--ease);
  will-change: transform;
}

.product-card:hover,
.product-card:focus-visible {
  transform: translateY(-2px) scale(1.015);
/*
  box-shadow:
    0 0 0 1px var(--accent-glow),
    0 12px 40px -8px var(--accent-glow);
*/
}

.product-card-image {
  width: 100%;
  height: auto;
  display: block;
}

.product-card-indicator {
  display: none;
  position: absolute;
  top: 8px;
  right: 8px;
  background: var(--accent);
  color: #000;
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  padding: 0.35em 0.6em;
  border-radius: 3px;
  opacity: 0;
  transform: translateY(-4px);
  transition:
    opacity 200ms var(--ease),
    transform 220ms var(--ease);
  pointer-events: none;
  /* tiny shadow for separation against the card's dark background */
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.6);
}

.product-card:hover .product-card-indicator,
.product-card:focus-visible .product-card-indicator {
  opacity: 1;
  transform: translateY(0);
}

/* On small screens the card is short — keep indicator readable */
@media (max-width: 480px) {
  .product-card-indicator {
    font-size: 0.5625rem;
    padding: 0.3em 0.5em;
  }
}

/* Touch devices: indicator always visible (no hover) */
@media (hover: none) {
  .product-card-indicator {
    opacity: 0.85;
    transform: translateY(0);
  }
}

.product-description {
  margin: 0;
  color: var(--fg-muted);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-align: center;
}

/* -------- FOOTER ------------------------------------------- */

.site-footer {
  border-top: 1px solid var(--rule);
  padding: var(--s-6) var(--s-5) var(--s-5);
  text-align: center;
  margin-top: var(--s-7);
}

.footer-nav ul {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  column-gap: var(--s-3);
}

.footer-nav a {
  color: var(--fg-muted);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.footer-nav a:hover,
.footer-nav a:focus-visible {
  color: var(--fg);
}

.footer-nav .sep {
  user-select: none;
  color: var(--accent);
  font-size: 18px;
}

.copyright {
  margin: var(--s-5) 0 0;
  color: var(--fg-dim);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* On very narrow screens, drop separator dots and stack */
@media (max-width: 420px) {
  .footer-nav .sep {
    display: none;
  }
  .footer-nav ul {
    gap: 0 var(--s-4);
  }
}

/* -------- CONTENT PAGES ------------------------------------ */

.content {
  max-width: 720px;
  margin: 0 auto;
  padding: var(--s-7) 0 var(--s-8);
}

.content h1 {
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  font-weight: 700;
  letter-spacing: 0.02em;
  margin: 0 0 var(--s-2);
}

.content .eyebrow {
  display: block;
  color: var(--accent);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: var(--s-2);
}

.content .lede {
  color: var(--fg-muted);
  font-size: 1rem;
  margin: 0 0 var(--s-6);
  padding-bottom: var(--s-5);
  border-bottom: 1px dashed var(--rule);
}

.content h2 {
  font-size: 1.125rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin: var(--s-7) 0 var(--s-3);
  color: var(--fg);
}

.content h2::before {
  content: "[M] ";
  color: var(--accent);
  font-weight: 400;
}

.content h3 {
  font-size: 0.9375rem;
  letter-spacing: 0.04em;
  margin: var(--s-5) 0 var(--s-2);
  color: var(--fg);
}

.content p,
.content li {
  color: var(--fg);
  font-size: 0.9375rem;
  line-height: 1.75;
}

.content ul.bulleted {
  list-style: none;
  padding-left: 0;
  margin: var(--s-3) 0;
}

.content ul.bulleted li {
  position: relative;
  padding-left: 1.5em;
  margin-bottom: var(--s-2);
}

.content ul.bulleted li::before {
  content: "›";
  position: absolute;
  left: 0;
  color: var(--accent);
}

.content a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-color: var(--accent-soft);
  text-decoration-thickness: 1px;
}

.content a:hover,
.content a:focus-visible {
  color: var(--fg);
  text-decoration-color: var(--fg);
}

.content .meta {
  color: var(--fg-dim);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-top: var(--s-7);
  padding-top: var(--s-4);
  border-top: 1px dashed var(--rule);
}

.content blockquote {
  margin: var(--s-5) 0;
  padding: var(--s-4) var(--s-5);
  border-left: 2px solid var(--accent);
  background: var(--accent-soft);
  color: var(--fg);
  font-style: italic;
}

/* -------- 404 ---------------------------------------------- */

.notfound {
  text-align: center;
  padding: var(--s-9) var(--s-5);
}

.notfound .code {
  font-size: clamp(3rem, 12vw, 6rem);
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.04em;
  line-height: 1;
}

.notfound p {
  color: var(--fg-muted);
  margin: var(--s-4) 0 var(--s-6);
}

/* -------- RESPONSIVE TWEAKS -------------------------------- */

@media (max-width: 600px) {
  .site-nav {
    padding: 0 var(--s-4);
    gap: var(--s-3);
  }
  .nav-list {
    gap: var(--s-3);
  }
  .nav-list a {
    font-size: 0.6rem;
    margin-bottom: 5px;
    display: inline-block;
  }
  .wordmark {
    font-size: 0.8125rem;
  }
  main {
    padding: 0 var(--s-4);
  }
}

@media (max-width: 380px) {
  /* Tighten the brand-mark on the smallest phones to avoid wrapping */
  .wordmark span {
    display: none;
  }
}