:root {
  --navy: #03243d;
  --navy-deep: #011927;
  --cyan: #08bec6;
  --cyan-soft: #75e1df;
  --signal: #c9342b;
  --paper: #f6f8f7;
  --white: #fff;
  --mist: #dce5e3;
  --muted: #64757e;
  --line-dark: rgba(3, 36, 61, .17);
  --line-light: rgba(255, 255, 255, .18);
  --pad: clamp(1.25rem, 4vw, 4.75rem);
  --display: "Helvetica Neue", Arial, sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--paper); }
body { margin: 0; overflow-x: hidden; color: var(--navy); background: var(--paper); font-family: var(--display); font-size: 16px; line-height: 1.5; }
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
img { display: block; max-width: 100%; }
::selection { color: var(--white); background: var(--signal); }

.skip-link { position: fixed; top: -5rem; left: 1rem; z-index: 100; padding: .8rem 1rem; color: var(--white); background: var(--signal); }
.skip-link:focus { top: 1rem; }

.site-header { position: fixed; inset: 0 0 auto; z-index: 50; display: flex; align-items: center; justify-content: space-between; height: 76px; padding: 0 var(--pad); color: var(--navy); border-bottom: 1px solid transparent; transition: background .35s, border-color .35s, box-shadow .35s; }
.site-header.scrolled { background: rgba(246, 248, 247, .88); border-color: var(--line-dark); box-shadow: 0 8px 40px rgba(3, 36, 61, .04); backdrop-filter: blur(18px); }
.brand { position: relative; z-index: 3; display: inline-flex; gap: .65rem; align-items: center; font-size: 1rem; font-weight: 700; letter-spacing: -.025em; text-decoration: none; }
.brand img { width: 34px; height: 34px; }
.site-nav { display: flex; align-items: center; gap: clamp(1rem, 2.2vw, 2.5rem); font-family: var(--mono); font-size: .66rem; letter-spacing: .11em; text-transform: uppercase; }
.site-nav a { position: relative; text-decoration: none; }
.site-nav a:not(.nav-cta)::after { content: ""; position: absolute; right: 100%; bottom: -.35rem; left: 0; height: 1px; background: var(--cyan); transition: right .25s; }
.site-nav a:hover::after, .site-nav a:focus-visible::after { right: 0; }
.nav-cta { display: inline-flex; gap: 2.5rem; padding: .78rem 1rem; color: var(--white); background: var(--navy); }
.language-switcher { display: inline-flex; padding: 2px; border: 1px solid var(--line-dark); }
.language-switcher button { min-width: 2.5rem; padding: .42rem .5rem; color: var(--muted); background: transparent; border: 0; font: inherit; font-size: .61rem; letter-spacing: .06em; cursor: pointer; }
.language-switcher button[aria-pressed="true"] { color: var(--white); background: var(--navy); }
.menu-toggle { display: none; color: inherit; background: none; border: 0; font: inherit; }

.hero { position: relative; min-height: 100svh; display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(420px, .9fr); gap: clamp(2.5rem, 4vw, 5rem); align-items: center; padding: 7.5rem var(--pad) 3.5rem; overflow: hidden; background: var(--paper); isolation: isolate; }
.hero::before { content: ""; position: absolute; z-index: -2; inset: 0; opacity: .64; background-image: linear-gradient(rgba(3, 36, 61, .045) 1px, transparent 1px), linear-gradient(90deg, rgba(3, 36, 61, .045) 1px, transparent 1px); background-size: 64px 64px; mask-image: linear-gradient(to bottom, black 0 82%, transparent); }
.hero::after { content: ""; position: absolute; z-index: -1; top: -30%; left: 40%; width: 65vw; aspect-ratio: 1; border-radius: 50%; background: radial-gradient(circle, rgba(8, 190, 198, .1), transparent 63%); }
.hero-copy { position: relative; z-index: 2; }
.eyebrow, .section-index, .kicker, .stage-top, .stage-bottom, .status, .equations span, .chip-label, .lab-head, .lab-scale, .footer-meta, .footer-copy { font-family: var(--mono); font-size: .65rem; letter-spacing: .12em; text-transform: uppercase; }
.eyebrow { display: flex; gap: .75rem; align-items: center; margin: 0 0 clamp(2rem, 4vw, 4rem); color: var(--signal); }
.eyebrow::before { content: ""; width: 2.2rem; height: 2px; background: currentColor; }
.hero h1 { max-width: 800px; margin: 0; font-size: clamp(4rem, 6.25vw, 7.5rem); font-weight: 520; letter-spacing: -.07em; line-height: .84; }
.hero h1 em { color: var(--cyan); font-family: Georgia, serif; font-weight: 400; }
.hero-lede { max-width: 640px; margin: clamp(2rem, 3.5vw, 3.4rem) 0 0; padding-top: 1.15rem; color: #425a65; border-top: 1px solid var(--line-dark); font-size: clamp(1rem, 1.25vw, 1.25rem); }
.hero-actions { display: flex; gap: 2rem; align-items: center; margin-top: 2.25rem; }
.button-primary { display: inline-flex; gap: 3.5rem; justify-content: space-between; min-width: 275px; padding: 1rem 1.15rem; color: var(--white); background: var(--navy); border: 1px solid var(--navy); font-family: var(--mono); font-size: .66rem; letter-spacing: .08em; text-decoration: none; text-transform: uppercase; transition: color .2s, background .2s, transform .2s; }
.button-primary:hover, .button-primary:focus-visible { color: var(--navy); background: var(--cyan-soft); transform: translateY(-2px); }
.status { display: inline-flex; gap: .6rem; align-items: center; color: var(--muted); }
.status i, .live i { width: 7px; height: 7px; background: var(--cyan); border-radius: 50%; box-shadow: 0 0 0 5px rgba(8, 190, 198, .12); animation: pulse 2.4s ease-in-out infinite; }

.field-stage { position: relative; align-self: center; justify-self: end; aspect-ratio: 1; width: min(100%, 580px); overflow: hidden; color: var(--white); background: var(--navy-deep); border: 1px solid rgba(3, 36, 61, .2); box-shadow: 0 26px 70px rgba(3, 36, 61, .14); }
#field-canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.stage-top, .stage-bottom { position: absolute; z-index: 5; right: 1rem; left: 1rem; display: flex; justify-content: space-between; color: rgba(255, 255, 255, .62); }
.stage-top { top: 1rem; }
.stage-bottom { bottom: 1rem; }
.live { display: flex; gap: .5rem; align-items: center; color: var(--cyan-soft); }
.brand-strip { display: flex; gap: 2rem; align-items: center; justify-content: space-between; min-height: 132px; padding: 1rem var(--pad); background: var(--white); border-top: 1px solid var(--line-dark); border-bottom: 1px solid var(--line-dark); }
.brand-lockup { display: inline-flex; gap: 1rem; align-items: center; color: var(--navy); }
.brand-lockup img { width: clamp(48px, 5vw, 68px); height: auto; }
.brand-lockup strong { font-size: clamp(2rem, 4vw, 3.8rem); font-weight: 650; letter-spacing: -.055em; }
.brand-strip p { max-width: 460px; margin: 0; color: var(--muted); font-size: .9rem; }
.brand-strip p span { margin-right: 1.1rem; color: var(--signal); font-family: var(--mono); font-size: .62rem; letter-spacing: .12em; }

.section-pad { padding: clamp(5rem, 8vw, 8rem) var(--pad); }
.section-index { color: #73858d; }
.kicker { color: var(--signal); line-height: 1.7; }
.thesis { display: grid; grid-template-columns: .7fr 3fr 1.15fr; gap: clamp(2rem, 5vw, 6rem); color: var(--white); background: var(--navy); }
.thesis-copy h2 { max-width: 1120px; margin: 2rem 0 0; font-size: clamp(3rem, 5.1vw, 6rem); font-weight: 500; letter-spacing: -.055em; line-height: .96; }
.thesis-copy h2 em { color: var(--cyan-soft); font-family: Georgia, serif; font-weight: 400; }
.thesis-note { align-self: end; margin: 0; color: #bcc9cc; font-size: .95rem; }

.architecture { color: var(--navy); background: var(--white); }
.section-heading { display: grid; grid-template-columns: .85fr 1.6fr; gap: 4rem; align-items: end; margin-bottom: clamp(4rem, 8vw, 8rem); }
.section-heading h2, .control-copy h2, .proof-title h2 { margin: 0; font-size: clamp(3.4rem, 6vw, 7rem); font-weight: 500; letter-spacing: -.064em; line-height: .86; }
.section-heading .kicker { margin-top: 3rem; }
.architecture-diagram { display: grid; grid-template-columns: 1.15fr .85fr; gap: clamp(3rem, 8vw, 9rem); align-items: center; }
.diagram-chip { position: relative; min-height: 590px; overflow: hidden; background: #eaf0ef; border: 1px solid var(--line-dark); }
.chip-grid { position: absolute; inset: 0; opacity: .72; background-image: radial-gradient(circle, rgba(3,36,61,.2) 1px, transparent 1px), linear-gradient(45deg, transparent 48%, rgba(8,190,198,.16) 49% 51%, transparent 52%), linear-gradient(-45deg, transparent 48%, rgba(8,190,198,.16) 49% 51%, transparent 52%); background-size: 38px 38px, 152px 152px, 152px 152px; transform: perspective(800px) rotateX(62deg) rotateZ(45deg) scale(1.5); }
.diagram-chip::before, .diagram-chip::after { display: none; }
.wave { position: absolute; inset: 10%; border: 0; opacity: .34; }
.wave::before, .wave::after { display: none; }
.wave-x { background: repeating-linear-gradient(90deg, rgba(8,190,198,.58) 0 2px, transparent 2px 38px); mask-image: linear-gradient(to bottom, transparent, black 18% 82%, transparent); }
.wave-y { background: repeating-linear-gradient(0deg, rgba(8,190,198,.58) 0 2px, transparent 2px 38px); mask-image: linear-gradient(to right, transparent, black 18% 82%, transparent); }
.chip-ion { position: absolute; z-index: 3; left: 50%; top: 44%; width: 18px; height: 18px; background: var(--signal); border: 5px solid var(--white); border-radius: 50%; transform: translate(-50%, -50%); box-shadow: 0 0 0 1px var(--signal), 0 14px 28px rgba(3,36,61,.22); }
.chip-ion::after { content: "ION"; position: absolute; top: 25px; left: 50%; color: var(--navy); font-family: var(--mono); font-size: .56rem; letter-spacing: .14em; transform: translateX(-50%); }
.chip-label { position: absolute; z-index: 4; padding: .4rem .55rem; color: var(--white); background: var(--navy); }
.label-drive { top: 1rem; left: 1rem; }
.label-null { right: 1rem; bottom: 1rem; background: var(--cyan); }
.label-dc { left: 1rem; bottom: 1rem; color: var(--navy); background: var(--white); border: 1px solid var(--navy); }
.architecture-steps { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line-dark); }
.architecture-steps li { display: grid; grid-template-columns: 3.5rem 1fr; gap: 1.2rem; padding: 2.2rem 0; border-bottom: 1px solid var(--line-dark); }
.architecture-steps li > span { padding-top: .35rem; color: var(--signal); font-family: var(--mono); font-size: .65rem; }
.architecture-steps h3 { margin: 0 0 .8rem; font-size: clamp(2rem, 3vw, 3.4rem); font-weight: 500; letter-spacing: -.045em; line-height: 1; }
.architecture-steps p { max-width: 500px; margin: 0; color: var(--muted); }

.control { display: grid; grid-template-columns: .95fr 1.05fr; gap: clamp(3rem, 8vw, 10rem); align-items: center; color: var(--white); background: var(--navy-deep); }
.control-copy h2 { margin: 2.3rem 0; }
.control-intro { max-width: 620px; color: #afc0c5; font-size: 1.08rem; }
.equations { margin-top: 4rem; border-top: 1px solid var(--line-light); }
.equations > div { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; padding: 1.25rem 0; border-bottom: 1px solid var(--line-light); }
.equations span { color: #718d97; }
.equations strong { font-size: clamp(1.3rem, 2vw, 2.2rem); font-weight: 400; }
.phase-lab { padding: 1rem; background: rgba(255,255,255,.025); border: 1px solid var(--line-light); }
.lab-head { display: flex; justify-content: space-between; padding: .4rem 0 1rem; color: #92a7ae; }
.lab-head output { color: var(--cyan-soft); }
.lab-head output[data-state="unlocked"] { color: #ff8b7f; }
#phase-canvas { display: block; width: 100%; aspect-ratio: 1; background: #00121c; }
.axis-controls { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-top: 1rem; }
.axis-controls fieldset { min-width: 0; margin: 0; padding: .9rem; border: 1px solid var(--line-light); }
.axis-controls legend { padding: 0 .35rem; color: var(--cyan-soft); font-family: var(--mono); font-size: .68rem; letter-spacing: .12em; }
.control-label { display: flex; justify-content: space-between; gap: .8rem; align-items: baseline; margin-bottom: .5rem; }
.control-label label { color: #91a9b2; font-family: var(--mono); font-size: .68rem; letter-spacing: .08em; text-transform: uppercase; }
.control-label output { color: var(--white); font-family: var(--mono); font-size: .72rem; }
.frequency-label { margin-top: 1rem; }
.phase-lab input { width: 100%; accent-color: var(--cyan); }
.lab-scale { display: flex; justify-content: space-between; margin-top: .35rem; color: #718d97; }
.field-readout { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; margin-top: 1rem; background: var(--line-light); border: 1px solid var(--line-light); }
.field-readout > span { padding: .7rem .55rem; color: #91a9b2; background: var(--navy-deep); font-family: var(--mono); font-size: .66rem; white-space: nowrap; }
.field-readout output { color: var(--cyan-soft); }
.frequency-actions { display: grid; grid-template-columns: auto 1fr; gap: 1rem; align-items: center; margin-top: 1rem; }
.frequency-actions button { padding: .72rem .85rem; color: var(--navy); background: var(--cyan-soft); border: 0; font-family: var(--mono); font-size: .62rem; letter-spacing: .08em; cursor: pointer; }
.frequency-actions p { margin: 0; color: #91a9b2; font-size: .78rem; }
.frequency-actions p[data-state="unlocked"] { color: #ff9a91; }

.advantages { color: var(--navy); background: var(--paper); }
.advantages-intro { display: grid; grid-template-columns: .7fr 2.2fr 1fr; gap: clamp(2rem, 5vw, 6rem); align-items: end; }
.advantages-intro h2 { margin: 0; font-size: clamp(3.3rem, 5.5vw, 6.4rem); font-weight: 500; letter-spacing: -.06em; line-height: .91; }
.advantages-intro h2 em { color: var(--signal); font-family: Georgia, serif; font-weight: 400; }
.advantages-intro > p { margin: 0; color: var(--muted); }
.advantages-grid { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 6rem; border-top: 1px solid var(--line-dark); border-left: 1px solid var(--line-dark); }
.advantage-card { min-height: 340px; display: flex; flex-direction: column; padding: 1.35rem; border-right: 1px solid var(--line-dark); border-bottom: 1px solid var(--line-dark); }
.advantage-card > span { color: var(--signal); font-family: var(--mono); font-size: .65rem; }
.advantage-card h3 { margin: auto 0 1.2rem; font-size: clamp(1.7rem, 2.4vw, 2.7rem); font-weight: 500; letter-spacing: -.045em; line-height: .95; }
.advantage-card p { margin: 0; color: var(--muted); font-size: .9rem; }
.advantages-caveat { max-width: 980px; margin: 2rem 0 0 auto; padding-left: 1rem; color: var(--muted); border-left: 2px solid var(--signal); }

.proof { display: grid; grid-template-columns: .6fr 1.5fr; gap: 4rem; color: var(--white); background: var(--navy); }
.proof-title { grid-column: 2; }
.proof-title h2 { margin-top: 2rem; }
.proof-list { grid-column: 2; display: grid; grid-template-columns: 1fr 1fr; margin-top: 4rem; border-top: 1px solid var(--line-light); border-left: 1px solid var(--line-light); }
.proof-list article { min-height: 265px; display: flex; flex-direction: column; padding: 1.3rem; border-right: 1px solid var(--line-light); border-bottom: 1px solid var(--line-light); }
.proof-list article > span { color: var(--cyan-soft); font-family: var(--mono); font-size: .65rem; }
.proof-list h3 { margin: auto 0 1.2rem; font-size: clamp(1.8rem, 3vw, 3rem); font-weight: 500; letter-spacing: -.045em; line-height: .95; }
.proof-list p { max-width: 420px; margin: 0; color: #afc0c5; }

.contact { position: relative; min-height: 85svh; display: grid; grid-template-columns: .6fr 2.2fr; overflow: hidden; color: var(--navy); background: var(--cyan-soft); }
.contact-copy { position: relative; z-index: 2; align-self: center; }
.contact-copy h2 { margin: 2rem 0 4rem; font-size: clamp(4.5rem, 10vw, 11rem); font-weight: 500; letter-spacing: -.077em; line-height: .76; }
.contact-actions { display: flex; gap: 3rem; align-items: center; }
.text-link { display: inline-flex; gap: 2rem; justify-content: space-between; padding-bottom: .45rem; border-bottom: 1px solid; font-family: var(--mono); font-size: .66rem; letter-spacing: .08em; text-decoration: none; text-transform: uppercase; }
.text-link:hover, .text-link:focus-visible { color: var(--signal); }
.contact-mark { position: absolute; right: -11vw; top: 50%; width: min(55vw, 760px); opacity: .09; transform: translateY(-50%); }
.contact-mark img { width: 100%; height: auto; }

.site-footer { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 2rem; align-items: end; padding: 2.5rem var(--pad); color: var(--white); background: var(--navy-deep); border-top: 1px solid var(--line-light); }
.footer-meta { display: flex; flex-direction: column; gap: .5rem; color: #79929b; }
.footer-copy { display: flex; justify-content: space-between; color: #79929b; }
.footer-copy a { text-decoration: none; }

.reveal { opacity: 0; transform: translateY(22px); transition: opacity .55s, transform .55s cubic-bezier(.2, .8, .2, 1); }
.reveal.is-visible { opacity: 1; transform: none; }

@keyframes pulse { 50% { opacity: .34; transform: scale(.76); } }

@media (max-width: 1080px) {
  .hero { grid-template-columns: 1fr; padding-top: 8.5rem; }
  .field-stage { justify-self: auto; width: min(76vw, 620px); margin: 1rem 0 1rem auto; }
  .thesis { grid-template-columns: 1fr 3fr; }
  .thesis-note { grid-column: 2; max-width: 620px; }
  .architecture-diagram { grid-template-columns: 1fr; }
  .diagram-chip { min-height: 70vw; }
  .control { grid-template-columns: 1fr; }
  .phase-lab { width: min(78vw, 680px); margin-left: auto; }
  .advantages-intro { grid-template-columns: 1fr 3fr; }
  .advantages-intro > p { grid-column: 2; max-width: 620px; }
  .advantages-grid { grid-template-columns: 1fr 1fr; }
  .proof { grid-template-columns: 1fr 3fr; }
  .site-footer { grid-template-columns: 1fr 1fr; }
  .footer-copy { grid-column: 1 / -1; }
}

@media (max-width: 720px) {
  .site-header { height: 66px; }
  .menu-toggle { position: relative; z-index: 3; display: flex; gap: .65rem; align-items: center; font-family: var(--mono); font-size: .65rem; text-transform: uppercase; }
  .menu-toggle span { margin-right: 28px; }
  .menu-toggle i { position: absolute; right: 0; width: 20px; height: 1px; background: currentColor; transition: transform .25s; }
  .menu-toggle i:nth-of-type(1) { top: -3px; }
  .menu-toggle i:nth-of-type(2) { top: 4px; }
  .menu-toggle[aria-expanded="true"] i:nth-of-type(1) { transform: translateY(3.5px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] i:nth-of-type(2) { transform: translateY(-3.5px) rotate(-45deg); }
  .site-nav { position: fixed; inset: 0; z-index: 2; display: flex; flex-direction: column; align-items: flex-start; justify-content: center; width: 100vw; height: 100dvh; gap: 1.4rem; padding: 6rem var(--pad); color: var(--white); background: var(--navy-deep); font-size: clamp(2rem, 10vw, 3.8rem); transform: translateX(100%); transition: transform .4s cubic-bezier(.2,.8,.2,1); }
  .site-nav.open { transform: none; }
  .site-nav .nav-cta { margin-top: 1.5rem; color: var(--navy); background: var(--cyan-soft); font-size: .7rem; }
  .site-nav .language-switcher { margin-top: 1rem; border-color: rgba(255,255,255,.3); }
  .site-nav .language-switcher button { min-width: 4.4rem; color: #9eb2b8; }
  .site-nav .language-switcher button[aria-pressed="true"] { color: var(--navy); background: var(--cyan-soft); }
  .site-header.menu-open { color: var(--white); background: transparent; border-color: transparent; box-shadow: none; backdrop-filter: none; }

  .hero { padding-top: 8.2rem; }
  .hero h1 { font-size: clamp(2.8rem, 14vw, 4.8rem); line-height: .86; }
  .hero-actions { align-items: flex-start; flex-direction: column; }
  .field-stage { width: 100%; margin: 1rem 0 4.6rem; }
  .brand-strip { align-items: flex-start; flex-direction: column; min-height: 0; padding-top: 1.25rem; padding-bottom: 1.25rem; }
  .brand-lockup img { width: 48px; }
  .stage-top, .stage-bottom { font-size: .52rem; }

  .section-pad { padding-top: 5.5rem; padding-bottom: 5.5rem; }
  .thesis, .section-heading, .advantages-intro, .proof, .contact { grid-template-columns: 1fr; }
  .thesis-copy, .thesis-note, .advantages-intro h2, .advantages-intro > p, .proof-title, .proof-list, .contact-copy { grid-column: auto; }
  .thesis-copy h2 { font-size: clamp(2.8rem, 13vw, 4.7rem); }
  .section-heading { align-items: start; }
  .section-heading h2 { font-size: clamp(3.4rem, 16vw, 5.5rem); }
  .diagram-chip { min-height: 115vw; }
  .phase-lab { width: 100%; margin-left: 0; }
  .axis-controls, .frequency-actions { grid-template-columns: 1fr; }
  .field-readout { grid-template-columns: 1fr 1fr; }
  .equations > div { align-items: flex-start; flex-direction: column; }
  .advantages-grid { grid-template-columns: 1fr; }
  .advantage-card { min-height: 270px; }
  .proof-title h2 { font-size: 15vw; }
  .proof-list { grid-template-columns: 1fr; }
  .proof-list article { min-height: 250px; }
  .contact { min-height: auto; }
  .contact-copy h2 { font-size: 20vw; }
  .contact-actions { align-items: flex-start; flex-direction: column; }
  .contact-mark { right: -45vw; width: 120vw; }
  .site-footer { grid-template-columns: 1fr; }
  .footer-copy, .footer-meta { grid-column: auto; }
}

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