:root {
  --mint: #39d39f;
  --mint-deep: #12805f;
  --navy: #0d1b2a;
  --slate: #23304a;
  --cool: #a9b1bc;
  --light: #e8ecf1;
  --white: #fff;
  --display: "Avenir Next", Avenir, "Helvetica Neue", Arial, sans-serif;
  --sans: Inter, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--navy); }
body { margin: 0; background: var(--white); color: var(--navy); font-family: var(--sans); }
a { color: inherit; }
.skip-link { position: fixed; top: -5rem; left: 1rem; z-index: 100; padding: .8rem 1rem; background: var(--mint); color: var(--navy); }
.skip-link:focus { top: 1rem; }

.site-header {
  position: absolute; z-index: 20; inset: 0 0 auto; display: flex; align-items: center; justify-content: space-between;
  padding: clamp(1.4rem, 3vw, 2.8rem) clamp(1.3rem, 4vw, 4.8rem); color: var(--white);
}
.logo { display: inline-flex; align-items: center; gap: .9rem; text-decoration: none; }
.logo-copy { font: 500 clamp(1.05rem, 1.4vw, 1.45rem)/.9 var(--display); letter-spacing: -.035em; }
.dot-mark {
  width: 2.1rem; aspect-ratio: 1; display: block;
  background-image: radial-gradient(circle, var(--mint) 0 1.45px, transparent 1.7px);
  background-size: 7px 7px;
}
.site-header nav, .site-footer nav { display: flex; align-items: center; gap: clamp(1.1rem, 2.5vw, 2.8rem); }
.site-header nav a, .site-footer nav a {
  font-size: .66rem; letter-spacing: .06em; text-transform: uppercase; text-decoration: none;
  text-underline-offset: .45rem;
}
.site-header nav a:hover, .site-header nav a:focus-visible, .site-footer nav a:hover, .site-footer nav a:focus-visible { text-decoration: underline; text-decoration-color: var(--mint); }
.menu-toggle { display: none; border: 1px solid rgba(255,255,255,.4); background: transparent; color: white; padding: .6rem .75rem; text-transform: uppercase; letter-spacing: .12em; font: 600 .62rem var(--sans); }

.hero { position: relative; min-height: 100svh; overflow: hidden; display: flex; align-items: center; color: var(--white); background: var(--navy); }
.hero-media { position: absolute; inset: 0; background: url("assets/fylux-living-system.webp") center / cover no-repeat; animation: system-breathe 18s ease-in-out infinite alternate; }
.hero-media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, var(--navy) 0%, rgba(13,27,42,.98) 24%, rgba(13,27,42,.55) 48%, rgba(13,27,42,.02) 76%); }
.hero-copy { position: relative; z-index: 2; width: min(48rem, 58%); padding: 10rem 2rem 7rem clamp(1.5rem, 6vw, 7rem); }
.hero h1 { margin: 0 0 2rem; font: 500 clamp(3.5rem, 6.5vw, 7.6rem)/.94 var(--display); letter-spacing: -.055em; }
.hero-copy > p { max-width: 38rem; margin: 0 0 2.3rem; color: #e7edf2; font-size: clamp(1rem, 1.35vw, 1.24rem); line-height: 1.55; }
.text-link, .narava-link { display: inline-flex; gap: 1.2rem; align-items: center; padding: .5rem 0 .75rem; border-bottom: 1px solid var(--mint); text-decoration: none; font-size: .73rem; letter-spacing: .06em; text-transform: uppercase; }
.text-link span, .narava-link span { font-size: 1.3rem; transition: transform .25s ease; }
.text-link:hover span, .text-link:focus-visible span, .narava-link:hover span, .narava-link:focus-visible span { transform: translateX(.35rem); }
.signal-line { position: absolute; z-index: 2; left: 2.5%; right: 50%; bottom: 2rem; height: 1px; background: rgba(57,211,159,.55); }
.signal-line span { position: absolute; top: -4px; left: 30%; width: 9px; height: 9px; border-radius: 50%; background: var(--mint); animation: signal-travel 6s ease-in-out infinite alternate; }

.manifesto { min-height: 54vh; display: grid; grid-template-columns: 1.25fr .75fr; gap: 8vw; align-items: center; padding: clamp(5rem, 10vw, 11rem) clamp(1.5rem, 6vw, 7rem); border-bottom: 1px solid var(--light); }
.manifesto h2, .future h2, .careers h2 { margin: 0; font: 500 clamp(2.8rem, 5vw, 6rem)/.98 var(--display); letter-spacing: -.05em; }
.manifesto > p { margin: 0; max-width: 32rem; padding-left: 2rem; border-left: 1px solid var(--mint); font-size: clamp(1.05rem, 1.5vw, 1.3rem); line-height: 1.55; }

.thesis { display: grid; grid-template-columns: 15% 1fr; gap: 3rem; padding: clamp(4rem, 7vw, 7rem) clamp(1.5rem, 6vw, 7rem); }
.section-label { margin: 0; color: var(--navy); font-size: .72rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; }
.principles { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(2rem, 5vw, 6rem); }
.principle { position: relative; padding-top: 1.4rem; border-top: 1px solid var(--mint); }
.principle > span { position: absolute; top: -2rem; font-size: .72rem; }
.principle h3 { margin: .2rem 0 1.6rem; font: 500 clamp(1.7rem, 2.7vw, 3rem)/.98 var(--display); letter-spacing: -.045em; }
.principle p { margin: 0; max-width: 28ch; color: var(--slate); font-size: .92rem; line-height: 1.65; }

.science { position: relative; min-height: 58vw; max-height: 56rem; overflow: hidden; background: var(--navy); }
.science-image { position: absolute; inset: 0; background: url("assets/fylux-living-system.webp") 65% 50% / cover no-repeat; }
.science-image::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 60%, rgba(13,27,42,.7)); }
.grid-field { position: absolute; inset: 0; opacity: .18; background-image: linear-gradient(rgba(57,211,159,.32) 1px, transparent 1px), linear-gradient(90deg, rgba(57,211,159,.32) 1px, transparent 1px); background-size: 5rem 5rem; mask-image: linear-gradient(90deg, transparent, #000); animation: grid-drift 24s linear infinite; }

.practices { min-height: 70vh; display: grid; grid-template-columns: 44% 56%; background: var(--white); }
.practice-copy { padding: clamp(4rem, 8vw, 9rem) clamp(1.5rem, 6vw, 7rem); }
.practice-copy h2 { margin: 2.4rem 0 1.5rem; color: #896449; font: 400 clamp(2.8rem, 5vw, 5.8rem)/.95 Georgia, serif; letter-spacing: -.045em; }
.practice-copy > p:not(.section-label) { max-width: 30rem; font-size: 1rem; line-height: 1.65; }
.narava-link { margin-top: 1.4rem; color: #896449; border-color: #896449; }
.practice-art { position: relative; overflow: hidden; background: #f6f3ec; }
.practice-art::before { content: ""; position: absolute; inset: 0; background: url("assets/narava-skin-study.webp") 72% 62% / cover no-repeat; }
.paper { position: absolute; border-radius: 48% 52% 45% 55%; border: 1px solid rgba(137,100,73,.25); }
.paper-one { width: 50%; height: 70%; left: -18%; top: 10%; background: rgba(246,243,236,.78); transform: rotate(20deg); }
.paper-two { width: 45%; height: 65%; right: -12%; bottom: -20%; background: rgba(231,226,216,.4); transform: rotate(-18deg); }
.paper-three { width: 35%; height: 40%; right: 5%; top: -15%; background: rgba(139,144,126,.12); }

.future { position: relative; min-height: 66vh; overflow: hidden; display: grid; grid-template-columns: 48% 52%; align-items: center; padding: 6rem clamp(1.5rem, 6vw, 7rem); }
.future-grid { position: absolute; inset: 0 52% 0 0; background-image: radial-gradient(circle, var(--mint) 0 1.2px, transparent 1.6px); background-size: 15px 15px; opacity: .75; transform: perspective(600px) rotateX(62deg) translateY(18%); transform-origin: bottom; }
.future-copy { grid-column: 2; padding-left: 4vw; }
.future h2 { max-width: 10ch; font-size: clamp(3rem, 5.5vw, 6.5rem); }
.future p { max-width: 38rem; margin: 2.4rem 0 0; padding-top: 1.5rem; border-top: 1px solid var(--mint); font-size: 1.05rem; line-height: 1.65; }

.careers { min-height: 64vh; padding: clamp(5rem, 9vw, 10rem) clamp(1.5rem, 6vw, 7rem); color: var(--white); background: var(--slate); }
.careers .section-label { color: var(--mint); }
.careers h2 { max-width: 13ch; margin-top: 2rem; }
.careers > p:last-child { max-width: 36rem; margin: 2.5rem 0 0; color: #d9e0e7; line-height: 1.6; }

.site-footer { position: relative; display: grid; grid-template-columns: 1fr auto; gap: 3rem; padding: 4rem clamp(1.5rem, 5vw, 6rem) 3rem; color: var(--white); background: var(--navy); }
.site-footer > div > p { margin: 1rem 0 0; color: var(--cool); font-size: .72rem; }
.copyright { grid-column: 1 / -1; margin: 2rem 0 0; padding-top: 1.5rem; border-top: 1px solid rgba(169,177,188,.3); color: var(--cool); font-size: .67rem; text-transform: uppercase; letter-spacing: .08em; }

.reveal { opacity: 0; transform: translateY(22px); transition: opacity .9s ease, transform .9s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

@keyframes system-breathe { to { transform: scale(1.045) translateX(-.5%); } }
@keyframes signal-travel { to { left: 90%; } }
@keyframes grid-drift { to { background-position: 5rem 5rem; } }

@media (max-width: 820px) {
  .site-header { align-items: flex-start; }
  .menu-toggle { display: block; }
  .site-header nav { position: absolute; right: 1.3rem; top: 5.5rem; display: none; width: min(18rem, calc(100vw - 2.6rem)); flex-direction: column; align-items: stretch; gap: 0; padding: 1rem; background: rgba(13,27,42,.97); border: 1px solid rgba(57,211,159,.35); }
  .site-header nav.is-open { display: flex; }
  .site-header nav a { padding: .85rem; border-bottom: 1px solid rgba(255,255,255,.1); }
  .hero-copy { width: 100%; padding: 9rem 1.5rem 6rem; }
  .hero h1 { max-width: 8ch; font-size: clamp(3.6rem, 15vw, 6.6rem); }
  .hero-media { background-position: 67% center; }
  .hero-media::after { background: linear-gradient(90deg, var(--navy), rgba(13,27,42,.7) 60%, rgba(13,27,42,.12)); }
  .manifesto { min-height: auto; grid-template-columns: 1fr; gap: 3rem; padding: 6rem 1.5rem; }
  .manifesto > p { padding: 1.5rem 0 0; border-left: 0; border-top: 1px solid var(--mint); }
  .thesis { grid-template-columns: 1fr; padding: 5rem 1.5rem; }
  .principles { grid-template-columns: 1fr; gap: 4.5rem; }
  .principle p { max-width: 42rem; }
  .science { min-height: 75svh; }
  .science-image { background-position: 61% 50%; }
  .practices { grid-template-columns: 1fr; }
  .practice-art { min-height: 68svh; }
  .practice-copy { padding: 5rem 1.5rem; }
  .future { grid-template-columns: 1fr; padding: 6rem 1.5rem; }
  .future-grid { inset: 0; opacity: .22; }
  .future-copy { grid-column: 1; padding: 0; }
  .site-footer { grid-template-columns: 1fr; }
  .site-footer nav { flex-wrap: wrap; justify-content: flex-start; gap: 1.5rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}