:root {
  --d1: #ff3b24;
  --d1-bright: #ff6049;
  --d1-deep: #8f160b;
  --d1-dark: #150706;
  --ink: #151516;
  --muted: #6e6e76;
  --paper: #f7f5f1;
  --white: #ffffff;
  --line: rgba(21, 21, 22, .12);
  --display: "Space Grotesk", sans-serif;
  --body: "Inter", sans-serif;
  --shadow: 0 25px 80px rgba(30, 10, 7, .12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 126px; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: var(--body); line-height: 1.7; overflow-x: hidden; }
a { color: inherit; text-decoration: none; }
img, canvas, svg { max-width: 100%; }
button, input { font: inherit; }
.container { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }

.site-header { position: fixed; inset: 0 0 auto; z-index: 1000; background: rgba(10, 8, 8, .78); border-bottom: 1px solid rgba(255,255,255,.09); backdrop-filter: blur(18px); transition: .3s ease; }
.site-header.scrolled { background: rgba(10, 8, 8, .95); box-shadow: 0 15px 40px rgba(0,0,0,.2); }
.navbar { width: min(1380px, calc(100% - 36px)); min-height: 82px; margin: auto; display: flex; align-items: center; gap: 34px; }
.logo { margin-right: auto; }
.logo a { display: flex; align-items: baseline; gap: 11px; color: #fff; }
.logo-main { font: 700 1.8rem/1 var(--display); letter-spacing: -.06em; }
.logo-sub { font-size: .68rem; letter-spacing: .16em; text-transform: uppercase; opacity: .7; }
.nav-menu { display: flex; align-items: center; gap: 23px; margin: 0; padding: 0; list-style: none; }
.nav-menu a { position: relative; color: rgba(255,255,255,.72); font-size: .78rem; font-weight: 600; }
.nav-menu a::after { content: ""; position: absolute; left: 0; bottom: -9px; width: 0; height: 2px; background: var(--d1); transition: width .25s ease; }
.nav-menu a:hover, .nav-menu a.active { color: #fff; }
.nav-menu a:hover::after, .nav-menu a.active::after { width: 100%; }
.download-btn { padding: 11px 16px; color: #fff; border: 1px solid rgba(255,255,255,.2); border-radius: 999px; font-size: .75rem; font-weight: 700; white-space: nowrap; }
.download-btn:hover { border-color: var(--d1); background: rgba(255,59,36,.12); }
.nav-toggle { display: none; color: #fff; background: transparent; border: 0; font-size: 1.35rem; }

.dimension-hero { position: relative; min-height: 100vh; padding: 145px 0 88px; display: grid; align-items: center; color: #fff; background: radial-gradient(circle at 74% 35%, rgba(255,59,36,.17), transparent 27%), linear-gradient(145deg, #090707 0%, #170908 60%, #090707 100%); overflow: hidden; }
.quantum-grid { position: absolute; inset: 0; opacity: .17; background-image: linear-gradient(rgba(255,255,255,.07) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.07) 1px, transparent 1px); background-size: 58px 58px; mask-image: linear-gradient(to bottom, black, transparent 90%); }
.hero-orb { position: absolute; border-radius: 50%; filter: blur(2px); pointer-events: none; }
.orb-one { width: 560px; height: 560px; right: -260px; top: -220px; border: 1px solid rgba(255,96,73,.25); box-shadow: inset 0 0 100px rgba(255,59,36,.06); }
.orb-two { width: 760px; height: 760px; left: -600px; bottom: -500px; border: 1px solid rgba(255,255,255,.08); }
.hero-layout { position: relative; display: grid; grid-template-columns: 1.02fr .98fr; gap: 72px; align-items: center; }
.eyebrow, .section-kicker { color: var(--d1-bright); font-size: .73rem; font-weight: 800; letter-spacing: .21em; }
.eyebrow { display: flex; align-items: center; gap: 12px; margin-bottom: 20px; }
.eyebrow span { display: inline-grid; place-items: center; width: 34px; height: 34px; color: #fff; border: 1px solid rgba(255,255,255,.22); border-radius: 50%; }
.hero-copy h1 { margin: 0; font: 700 clamp(4rem, 7.5vw, 7.7rem)/.86 var(--display); letter-spacing: -.075em; }
.hero-copy h1 em { color: var(--d1); font-style: normal; }
.hero-lead { max-width: 660px; margin: 28px 0 0; color: rgba(255,255,255,.72); font-size: 1.04rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 49px; padding: 0 21px; border: 1px solid transparent; border-radius: 5px; cursor: pointer; font-size: .82rem; font-weight: 800; transition: transform .22s ease, box-shadow .22s ease, background .22s ease; }
.btn:hover { transform: translateY(-2px); }
.btn-primary { color: #fff; background: var(--d1); box-shadow: 0 12px 32px rgba(255,59,36,.22); }
.btn-primary:hover { background: var(--d1-bright); box-shadow: 0 16px 40px rgba(255,59,36,.3); }
.btn-ghost { color: #fff; border-color: rgba(255,255,255,.18); background: rgba(255,255,255,.035); }
.hero-facts { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; margin-top: 47px; background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.1); }
.hero-facts div { padding: 14px 12px; background: rgba(8,7,7,.7); }
.hero-facts strong, .hero-facts span { display: block; }
.hero-facts strong { color: rgba(255,255,255,.42); font-size: .62rem; letter-spacing: .15em; text-transform: uppercase; }
.hero-facts span { margin-top: 4px; font-size: .78rem; font-weight: 700; }
.hero-visual { position: relative; border: 1px solid rgba(255,255,255,.13); border-radius: 10px; background: linear-gradient(180deg, rgba(255,255,255,.055), rgba(255,255,255,.015)); box-shadow: 0 45px 100px rgba(0,0,0,.4); overflow: hidden; }
.visual-header { display: flex; justify-content: space-between; padding: 15px 18px; border-bottom: 1px solid rgba(255,255,255,.1); color: rgba(255,255,255,.55); font-size: .63rem; font-weight: 800; letter-spacing: .16em; }
.live-dot { color: #fff; }
.live-dot::before { content: ""; display: inline-block; width: 7px; height: 7px; margin-right: 7px; background: var(--d1); border-radius: 50%; box-shadow: 0 0 12px var(--d1); }
#dimensionCanvas { display: block; width: 100%; aspect-ratio: 1.3; }
.visual-caption { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 20px; padding: 14px 18px 18px; color: rgba(255,255,255,.42); border-top: 1px solid rgba(255,255,255,.08); font-size: .7rem; }
.visual-caption p { margin: 0; text-align: center; }
.visual-caption span { color: var(--d1); font: 700 1rem var(--display); }
.scroll-indicator { position: absolute; left: 50%; bottom: 24px; width: 26px; height: 42px; border: 1px solid rgba(255,255,255,.25); border-radius: 20px; transform: translateX(-50%); }
.scroll-indicator span { position: absolute; top: 8px; left: 50%; width: 4px; height: 7px; background: var(--d1); border-radius: 3px; transform: translateX(-50%); animation: scrollDot 1.7s infinite; }
@keyframes scrollDot { 0% { opacity: 0; transform: translate(-50%,0); } 25% { opacity: 1; } 100% { opacity: 0; transform: translate(-50%,17px); } }

.dimension-nav { position: sticky; top: 82px; z-index: 50; color: #fff; background: #171313; border-bottom: 1px solid rgba(255,255,255,.08); }
.dimension-nav-inner { display: flex; gap: 5px; align-items: center; overflow-x: auto; scrollbar-width: none; }
.dimension-nav-inner::-webkit-scrollbar { display: none; }
.dimension-nav a { flex: 0 0 auto; padding: 15px 14px; color: rgba(255,255,255,.56); font-size: .68rem; font-weight: 700; letter-spacing: .06em; }
.dimension-nav a:hover, .dimension-nav a.active { color: #fff; background: rgba(255,59,36,.12); }

.section { padding: 112px 0; }
.section-heading { max-width: 790px; margin-bottom: 52px; }
.section-heading h2, .concept-copy h2 { margin: 7px 0 17px; font: 700 clamp(2.4rem, 5vw, 4.6rem)/.98 var(--display); letter-spacing: -.055em; }
.section-heading p, .concept-copy > p { color: var(--muted); }
.section-kicker { margin: 0; }
.overview { background: #fff; }
.profile-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.profile-card { min-height: 300px; padding: 29px; border: 1px solid var(--line); background: #fff; transition: .28s ease; }
.profile-card:hover { transform: translateY(-7px); border-color: rgba(255,59,36,.45); box-shadow: var(--shadow); }
.profile-card i { color: var(--d1); font-size: 1.35rem; }
.profile-card > span { display: block; margin-top: 49px; color: var(--d1); font-size: .63rem; font-weight: 800; letter-spacing: .17em; }
.profile-card h3 { margin: 8px 0 12px; font: 700 1.35rem/1.2 var(--display); }
.profile-card p { margin: 0; color: var(--muted); font-size: .88rem; }

.split-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 86px; align-items: center; }
.split-layout.reverse > :first-child { order: 2; }
.concept-copy { max-width: 570px; }
.feature-list { margin: 28px 0 0; padding: 0; list-style: none; }
.feature-list li { display: flex; gap: 15px; padding: 14px 0; border-bottom: 1px solid var(--line); font-weight: 650; }
.feature-list span { color: var(--d1); font-size: .68rem; letter-spacing: .1em; }
.math-panel { min-height: 450px; padding: 30px; display: flex; flex-direction: column; justify-content: center; background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow); }
.panel-label { margin-bottom: 62px; color: var(--muted); font-size: .64rem; font-weight: 800; letter-spacing: .18em; }
.number-line { position: relative; height: 95px; margin: 0 34px 40px; }
.number-line .line { position: absolute; top: 48px; left: 0; right: 0; height: 2px; background: linear-gradient(90deg, var(--d1-deep), var(--d1), var(--d1-deep)); }
.number-line .line::after { content: ""; position: absolute; right: -1px; top: -5px; border-left: 10px solid var(--d1-deep); border-top: 6px solid transparent; border-bottom: 6px solid transparent; }
.infinity { position: absolute; top: 66px; color: var(--muted); font: 700 1rem var(--display); }
.infinity.left { left: -24px; }.infinity.right { right: -29px; }
.point { position: absolute; top: 42px; width: 13px; height: 13px; background: var(--d1); border: 3px solid #fff; border-radius: 50%; box-shadow: 0 0 0 1px var(--d1), 0 0 20px rgba(255,59,36,.38); transform: translateX(-50%); }
.point span { position: absolute; top: -33px; left: 50%; color: var(--ink); font-size: .72rem; transform: translateX(-50%); }
.p1 { left: 17%; }.p2 { left: 39%; }.p3 { left: 63%; }.p4 { left: 84%; }
.equation-block { font-size: 1.25rem; text-align: center; }
.equation-block.large { font-size: 1.65rem; }
.panel-note { margin: 20px auto 0; max-width: 430px; color: var(--muted); font-size: .82rem; text-align: center; }

.dark-section { color: #fff; background: #120b0a; }
.dark-section .concept-copy > p, .dark-section .section-heading > p:last-child { color: rgba(255,255,255,.58); }
.dark-section .math-panel { background: #1b1110; border-color: rgba(255,255,255,.11); box-shadow: none; }
.dark-section .panel-label { color: rgba(255,255,255,.42); }
.equation-divider { width: 54px; height: 1px; margin: 18px auto; background: var(--d1); }
.motion-track { display: flex; align-items: center; justify-content: center; margin: 36px 0 25px; }
.motion-node { display: grid; place-items: center; width: 47px; height: 47px; color: rgba(255,255,255,.55); border: 1px solid rgba(255,255,255,.18); border-radius: 50%; transition: .3s ease; }
.motion-node.active { color: #fff; border-color: var(--d1); background: var(--d1); box-shadow: 0 0 30px rgba(255,59,36,.35); }
.motion-line { width: 70px; height: 2px; background: rgba(255,255,255,.12); overflow: hidden; }
.motion-line span { display: block; width: 0; height: 100%; background: var(--d1); transition: width .4s ease; }
.motion-line.active span { width: 100%; }
.mini-btn { align-self: center; padding: 9px 14px; color: #fff; background: transparent; border: 1px solid rgba(255,255,255,.18); border-radius: 4px; cursor: pointer; font-size: .72rem; font-weight: 700; }
.quote-card { position: relative; margin: 27px 0; padding: 20px 22px 20px 53px; border-left: 3px solid var(--d1); background: rgba(255,255,255,.045); }
.quote-card i { position: absolute; left: 19px; top: 23px; color: var(--d1); }
.quote-card p { margin: 0; font: 600 1.12rem var(--display); }

.energy-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.formula-card { position: relative; min-height: 230px; padding: 31px; background: #fff; border: 1px solid var(--line); overflow: hidden; }
.formula-card.primary-formula { color: #fff; background: var(--d1); border-color: var(--d1); }
.formula-number { position: absolute; right: 24px; top: 19px; color: rgba(21,21,22,.15); font: 700 3rem var(--display); }
.primary-formula .formula-number { color: rgba(255,255,255,.22); }
.formula-card p { margin: 0; color: var(--muted); font-size: .74rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.primary-formula p { color: rgba(255,255,255,.72); }
.formula-display { display: grid; min-height: 145px; place-items: center; font-size: 1.15rem; }
.interpretation-banner { display: flex; gap: 17px; margin-top: 18px; padding: 20px 23px; border: 1px solid rgba(255,59,36,.2); background: rgba(255,59,36,.055); }
.interpretation-banner i { margin-top: 5px; color: var(--d1); }
.interpretation-banner p { margin: 0; color: var(--muted); font-size: .87rem; }

.force-section { color: #fff; background: linear-gradient(125deg, #2a0805, #100807 70%); }
.force-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: 90px; align-items: center; }
.force-section .concept-copy > p { color: rgba(255,255,255,.62); }
.force-symbol { position: relative; aspect-ratio: 1; display: grid; place-items: center; }
.gluon-core { position: relative; z-index: 3; display: grid; place-items: center; width: 96px; height: 96px; color: #fff; background: var(--d1); border-radius: 50%; box-shadow: 0 0 65px rgba(255,59,36,.55); font: 700 3rem var(--display); }
.gluon-ring { position: absolute; width: 75%; height: 35%; border: 1px solid rgba(255,96,73,.45); border-radius: 50%; }
.ring-a { transform: rotate(25deg); animation: orbitA 7s linear infinite; }
.ring-b { transform: rotate(-55deg); animation: orbitB 9s linear infinite; }
.force-symbol > span { position: absolute; bottom: 10%; font-size: .62rem; font-weight: 800; letter-spacing: .22em; color: rgba(255,255,255,.4); }
@keyframes orbitA { to { transform: rotate(385deg); } }
@keyframes orbitB { to { transform: rotate(-415deg); } }
.force-specs { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; margin: 29px 0; background: rgba(255,255,255,.12); }
.force-specs div { padding: 17px; background: rgba(255,255,255,.045); }
.force-specs span, .force-specs strong { display: block; }
.force-specs span { color: rgba(255,255,255,.4); font-size: .62rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.force-specs strong { margin-top: 4px; }
.equation-strip { padding: 13px; overflow-x: auto; border: 1px solid rgba(255,255,255,.13); background: rgba(0,0,0,.18); text-align: center; }
.small-copy { font-size: .78rem !important; }

.beings-section { background: #fff; }
.particle-system { position: relative; aspect-ratio: 1.15; min-height: 430px; border: 1px solid var(--line); background: radial-gradient(circle, rgba(255,59,36,.12), transparent 42%), #171111; overflow: hidden; }
.particle { position: absolute; z-index: 3; display: grid; place-items: center; color: #fff; background: var(--d1); border: 1px solid rgba(255,255,255,.4); border-radius: 50%; box-shadow: 0 0 35px rgba(255,59,36,.48); font: 700 1.3rem var(--display); }
.particle-a { left: 18%; top: 28%; width: 74px; height: 74px; }
.particle-b { left: 53%; top: 16%; width: 58px; height: 58px; background: #fff; color: var(--d1); }
.particle-c { right: 15%; bottom: 25%; width: 82px; height: 82px; }
.binding-line { position: absolute; height: 2px; background: linear-gradient(90deg, transparent, var(--d1), transparent); transform-origin: left center; }
.line-a { left: 27%; top: 35%; width: 32%; transform: rotate(-14deg); }
.line-b { left: 58%; top: 25%; width: 31%; transform: rotate(63deg); }
.line-c { left: 27%; top: 37%; width: 55%; transform: rotate(31deg); }
.particle-label { position: absolute; left: 24px; bottom: 21px; color: rgba(255,255,255,.42); font-size: .62rem; font-weight: 800; letter-spacing: .18em; }
.text-link { display: inline-flex; align-items: center; gap: 9px; margin-top: 16px; color: var(--d1-deep); font-size: .78rem; font-weight: 800; }

.gemespasys-layout { display: grid; grid-template-columns: 1.05fr .95fr; gap: 72px; align-items: center; }
.matrix-card { position: relative; aspect-ratio: 1; padding: 45px 30px 30px 45px; background: #1c1312; border: 1px solid rgba(255,255,255,.1); }
.matrix-grid { display: grid; grid-template-columns: repeat(6, 1fr); grid-template-rows: repeat(6, 1fr); width: 100%; height: 100%; border-top: 1px solid rgba(255,255,255,.16); border-left: 1px solid rgba(255,255,255,.16); }
.matrix-cell { border-right: 1px solid rgba(255,255,255,.16); border-bottom: 1px solid rgba(255,255,255,.16); }
.matrix-axis { position: absolute; display: flex; color: rgba(255,255,255,.42); font-size: .62rem; font-weight: 700; }
.matrix-axis.top { left: 45px; right: 30px; top: 19px; justify-content: space-around; }
.matrix-axis.side { top: 45px; bottom: 30px; left: 18px; flex-direction: column; justify-content: space-around; }
.matrix-path { position: absolute; left: 45px; right: 30px; top: 45px; bottom: 30px; width: calc(100% - 75px); height: calc(100% - 75px); overflow: visible; }
.matrix-path path { fill: none; stroke: var(--d1); stroke-width: 5; stroke-linecap: round; stroke-dasharray: 11 12; filter: drop-shadow(0 0 7px rgba(255,59,36,.8)); animation: dash 9s linear infinite; }
@keyframes dash { to { stroke-dashoffset: -230; } }
.equation-card-simple { padding: 21px; border: 1px solid rgba(255,255,255,.12); background: rgba(255,255,255,.04); }
.equation-card-simple span { color: var(--d1-bright); font-size: .62rem; font-weight: 800; letter-spacing: .15em; }
.gem-copy > p { color: rgba(255,255,255,.58); }
.variable-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 25px; }
.variable-grid div { padding: 15px; background: rgba(255,255,255,.045); }
.variable-grid strong, .variable-grid span { display: block; }
.variable-grid strong { color: var(--d1-bright); }
.variable-grid span { color: rgba(255,255,255,.45); font-size: .72rem; }

.gravity-section { background: linear-gradient(180deg, #f7f5f1, #eee9e2); }
.gravity-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.gravity-card { padding: 31px; background: #fff; border: 1px solid var(--line); }
.gravity-icon { display: grid; place-items: center; width: 66px; height: 66px; color: #fff; background: var(--d1); border-radius: 50%; font: 700 2rem var(--display); box-shadow: 0 10px 35px rgba(255,59,36,.23); }
.gravity-card h3 { margin: 27px 0 10px; font: 700 1.35rem var(--display); }
.gravity-card p { color: var(--muted); font-size: .87rem; }
.mini-equation { margin-top: 25px; padding: 10px; background: var(--paper); text-align: center; }

.calculator-section { color: #fff; background: #110a09; }
.calculator-layout { display: grid; grid-template-columns: 1fr .9fr; gap: 90px; align-items: center; }
.calculator-section .concept-copy > p { color: rgba(255,255,255,.56); }
.calculator-card { padding: 31px; border: 1px solid rgba(255,255,255,.12); background: #1c1211; box-shadow: 0 35px 90px rgba(0,0,0,.26); }
.calculator-card label { display: block; margin: 13px 0 7px; color: rgba(255,255,255,.62); font-size: .72rem; font-weight: 700; }
.calculator-card input { width: 100%; padding: 12px 13px; color: #fff; background: rgba(255,255,255,.045); border: 1px solid rgba(255,255,255,.13); border-radius: 4px; outline: none; }
.calculator-card input:focus { border-color: var(--d1); box-shadow: 0 0 0 3px rgba(255,59,36,.1); }
.calculator-card .btn { width: 100%; margin-top: 22px; border: 0; }
.calculator-result { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; margin-top: 18px; background: rgba(255,255,255,.1); }
.calculator-result div { padding: 15px; background: rgba(255,255,255,.04); }
.calculator-result span, .calculator-result strong { display: block; }
.calculator-result span { color: rgba(255,255,255,.4); font-size: .62rem; font-weight: 800; text-transform: uppercase; }
.calculator-result strong { margin-top: 5px; font-size: .78rem; word-break: break-word; }
.form-error { min-height: 20px; margin: 9px 0 0; color: #ff8d7d; font-size: .72rem; }

.research-note { padding: 55px 0; color: #fff; background: var(--d1-deep); }
.note-inner { display: grid; grid-template-columns: auto 1fr; gap: 22px; align-items: start; }
.note-inner > i { font-size: 1.7rem; }
.note-inner h2 { margin: 0 0 7px; font: 700 1.3rem var(--display); }
.note-inner p { margin: 0; color: rgba(255,255,255,.72); font-size: .86rem; }
.dimension-pagination { padding: 42px 0; background: #fff; }
.pagination-inner { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 20px; }
.pagination-link { display: flex; flex-direction: column; }
.pagination-link.next { text-align: right; }
.pagination-link span { color: var(--muted); font-size: .65rem; font-weight: 700; text-transform: uppercase; }
.pagination-link strong { font: 700 1rem var(--display); }
.pagination-link.next strong { color: var(--d1-deep); }
.pagination-link.disabled { opacity: .35; pointer-events: none; }
.dimension-dots { display: flex; gap: 8px; }
.dimension-dots span { display: grid; place-items: center; width: 29px; height: 29px; border: 1px solid var(--line); border-radius: 50%; font-size: .66rem; font-weight: 700; }
.dimension-dots span.active { color: #fff; background: var(--d1); border-color: var(--d1); }
.site-footer { padding: 33px 0; color: rgba(255,255,255,.62); background: #0b0808; }
.footer-inner { display: flex; justify-content: space-between; align-items: center; gap: 30px; font-size: .72rem; }
.footer-inner div { display: flex; align-items: baseline; gap: 10px; }
.footer-inner strong { color: #fff; font: 700 1.35rem var(--display); }
.footer-inner span { font-size: .62rem; letter-spacing: .1em; text-transform: uppercase; }
.footer-inner a { color: #fff; }


.reveal {
    opacity: 0;
    transform: translateY(26px);
    transition:
        opacity 0.75s ease,
        transform 0.75s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 1100px) {
  .nav-menu, .download-btn { display: none; }
  .nav-toggle { display: block; }
  .nav-menu.open { position: absolute; display: flex; top: 82px; left: 0; right: 0; padding: 20px; flex-direction: column; align-items: flex-start; background: #100c0c; border-top: 1px solid rgba(255,255,255,.1); }
  .hero-layout { grid-template-columns: 1fr; }
  .hero-visual { max-width: 720px; }
  .profile-grid { grid-template-columns: 1fr 1fr; }
  .force-layout, .gemespasys-layout, .calculator-layout { gap: 50px; }
}

@media (max-width: 820px) {
  .section { padding: 82px 0; }
  .hero-copy h1 { font-size: clamp(3.8rem, 16vw, 6.2rem); }
  .hero-facts { grid-template-columns: 1fr 1fr; }
  .split-layout, .force-layout, .gemespasys-layout, .calculator-layout { grid-template-columns: 1fr; gap: 44px; }
  .split-layout.reverse > :first-child { order: initial; }
  .concept-copy { max-width: none; }
  .force-symbol { max-width: 560px; width: 100%; margin: auto; }
  .gravity-grid { grid-template-columns: 1fr; }
  .pagination-inner { grid-template-columns: 1fr 1fr; }
  .dimension-dots { display: none; }
}

@media (max-width: 580px) {
  .container { width: min(100% - 26px, 1180px); }
  .navbar { width: calc(100% - 24px); }
  .logo-sub { display: none; }
  .dimension-hero { padding-top: 125px; }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .hero-facts, .profile-grid, .energy-layout, .force-specs, .variable-grid, .calculator-result { grid-template-columns: 1fr; }
  .math-panel, .formula-card, .gravity-card, .calculator-card { padding: 22px; }
  .number-line { margin-inline: 20px; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
  .section-heading h2, .concept-copy h2 { font-size: 2.55rem; }
}

@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; }
}
/* ===== UNIVERSAL HEADER LOCK ===== */
.dimension-one-page .site-header{background:rgba(8,8,8,.84)!important;border-bottom:1px solid rgba(255,255,255,.12)!important}
.dimension-one-page .navbar{width:min(1380px,calc(100% - 42px))!important;min-height:82px!important;gap:32px!important}
.dimension-one-page .logo-main{font-family:"Space Grotesk",sans-serif!important;font-size:1.8rem!important}
.dimension-one-page .logo-sub{font-family:"Inter",sans-serif!important;font-size:.66rem!important}
.dimension-one-page .nav-menu{gap:23px!important}.dimension-one-page .nav-menu a{font-family:"Inter",sans-serif!important;font-size:.78rem!important}.dimension-one-page .nav-menu a::after{background:#ff3b24!important}.dimension-one-page .download-btn{padding:11px 17px!important;font-size:.75rem!important}

/* =========================================================
   DIMENSION ONE — INTERACTION UPGRADE
========================================================= */


/* =========================================================
   PAGE PROGRESS
========================================================= */

.d1-page-progress {

    position: fixed;

    top: 0;
    right: 0;

    z-index: 2000;

    width: 3px;
    height: 0;

    pointer-events: none;

    background: var(--d1);

    box-shadow:
        0 0 10px
        rgba(255,59,36,.65);

}


/* =========================================================
   HERO — EXTRA DEPTH
========================================================= */

.dimension-hero::after {

    content: "";

    position: absolute;

    inset: 0;

    pointer-events: none;

    background:

        radial-gradient(
            circle
            at
            var(--hero-x,72%)
            var(--hero-y,38%),

            rgba(255,59,36,.075),

            transparent 24%
        );

    z-index: 0;

}


.hero-copy,
.hero-visual {

    z-index: 2;

}


.hero-copy {

    transform:
        translate(
            var(--hero-shift-x,0),
            var(--hero-shift-y,0)
        );

    transition:
        transform .18s ease-out;

}


/* =========================================================
   HERO TITLE
========================================================= */

.hero-copy h1 em {

    position: relative;

    text-shadow:

        0 0 12px
        rgba(255,59,36,.28),

        0 0 38px
        rgba(255,59,36,.12);

}


/* =========================================================
   HERO FACTS
========================================================= */

.hero-facts div {

    position: relative;

    overflow: hidden;

    transition:

        background .25s ease,
        transform .25s ease;

}


.hero-facts div::after {

    content: "";

    position: absolute;

    left: 0;
    bottom: 0;

    width: 100%;
    height: 2px;

    background: var(--d1);

    transform:
        scaleX(0);

    transform-origin:
        left;

    transition:
        transform .3s ease;

}


.hero-facts div:hover {

    transform:
        translateY(-3px);

    background:
        rgba(255,59,36,.09);

}


.hero-facts div:hover::after {

    transform:
        scaleX(1);

}


/* =========================================================
   HERO CANVAS CONTROL
========================================================= */

.visual-controls {

    display: inline-flex;

    align-items: center;

    gap: 7px;

}


.visual-control {

    display: inline-grid;

    place-items: center;

    width: 27px;
    height: 27px;

    padding: 0;

    color:
        rgba(255,255,255,.65);

    background:
        transparent;

    border:
        1px solid
        rgba(255,255,255,.14);

    border-radius: 50%;

    cursor: pointer;

    font-size: .64rem;

    transition:

        color .2s ease,
        border-color .2s ease,
        background .2s ease;

}


.visual-control:hover {

    color: #fff;

    border-color: var(--d1);

    background:
        rgba(255,59,36,.10);

}


/* =========================================================
   INTERACTIVE CARD SPOTLIGHT
========================================================= */

.profile-card,
.formula-card,
.gravity-card,
.matrix-card,
.calculator-card {

    position: relative;

    overflow: hidden;

}


.profile-card::before,
.formula-card::before,
.gravity-card::before,
.calculator-card::before {

    content: "";

    position: absolute;

    inset: 0;

    z-index: 0;

    pointer-events: none;

    opacity: 0;

    background:

        radial-gradient(
            330px circle
            at
            var(--mouse-x,50%)
            var(--mouse-y,50%),

            rgba(255,59,36,.085),

            transparent 48%
        );

    transition:
        opacity .25s ease;

}


.profile-card:hover::before,
.formula-card:hover::before,
.gravity-card:hover::before,
.calculator-card:hover::before {

    opacity: 1;

}


.profile-card > *,
.formula-card > *,
.gravity-card > *,
.calculator-card > * {

    position: relative;

    z-index: 2;

}


/* =========================================================
   PROFILE CARDS
========================================================= */

.profile-card {

    transform-style:
        preserve-3d;

}


.profile-card i {

    transition:

        transform .3s ease,
        filter .3s ease;

}


.profile-card:hover i {

    transform:
        scale(1.12)
        rotate(-6deg);

    filter:
        drop-shadow(
            0 0 8px
            rgba(255,59,36,.28)
        );

}


/* =========================================================
   NUMBER LINE — INTERACTIVE STATES
========================================================= */

.point {

    cursor: pointer;

    transition:

        transform .25s ease,
        box-shadow .25s ease,
        background .25s ease;

}


.point:hover,
.point.point-selected {

    transform:
        translateX(-50%)
        scale(1.45);

    background: #ffffff;

    box-shadow:

        0 0 0 2px
        var(--d1),

        0 0 28px
        rgba(255,59,36,.58);

}


.point span {

    transition:

        color .25s ease,
        transform .25s ease;

}


.point:hover span,
.point.point-selected span {

    color: var(--d1-deep);

    transform:
        translateX(-50%)
        translateY(-3px);

}


.number-line-readout {

    min-height: 42px;

    margin-top: 18px;

    padding:
        11px 14px;

    color: var(--muted);

    background: var(--paper);

    border:
        1px solid var(--line);

    font-size: .72rem;

    text-align: center;

}


.number-line-readout strong {

    color: var(--d1-deep);

}


/* =========================================================
   FEATURE LIST
========================================================= */

.feature-list li {

    position: relative;

    transition:

        padding-left .25s ease,
        opacity .25s ease;

}


.feature-list li:hover {

    padding-left: 9px;

}


.feature-list:hover li:not(:hover) {

    opacity: .42;

}


/* =========================================================
   MOTION SECTION
========================================================= */

.motion-node {

    cursor: pointer;

}


.motion-node:hover {

    border-color: var(--d1);

    transform:
        scale(1.08);

}


.motion-status {

    min-height: 25px;

    margin-top: 12px;

    color:
        rgba(255,255,255,.47);

    font-size: .68rem;

    text-align: center;

    letter-spacing: .05em;

}


/* =========================================================
   ENERGY EQUATIONS
========================================================= */

.formula-card {

    cursor: pointer;

    transition:

        transform .28s ease,
        border-color .28s ease,
        box-shadow .28s ease,
        opacity .28s ease;

}


.formula-card:hover {

    transform:
        translateY(-6px);

    border-color:
        rgba(255,59,36,.42);

    box-shadow:
        var(--shadow);

}


.formula-card.energy-focus {

    transform:
        translateY(-7px);

}


.energy-layout:hover
.formula-card:not(:hover) {

    opacity: .55;

}


/* =========================================================
   COPY FORMULA BUTTON
========================================================= */

.d1-copy-equation {

    position: absolute;

    top: 17px;
    left: 17px;

    z-index: 8;

    min-height: 31px;

    padding:
        0 10px;

    display: inline-flex;

    align-items: center;

    gap: 6px;

    color: var(--muted);

    background:
        rgba(255,255,255,.7);

    border:
        1px solid var(--line);

    cursor: pointer;

    opacity: 0;

    font-size: .61rem;

    font-weight: 800;

    transition:

        opacity .25s ease,
        transform .25s ease,
        color .25s ease,
        border-color .25s ease;

}


.formula-card:hover
.d1-copy-equation {

    opacity: 1;

}


.d1-copy-equation:hover {

    color: var(--d1-deep);

    border-color:
        rgba(255,59,36,.45);

    transform:
        translateY(-2px);

}


.primary-formula
.d1-copy-equation {

    color:
        rgba(255,255,255,.72);

    background:
        rgba(0,0,0,.12);

    border-color:
        rgba(255,255,255,.23);

}


/* =========================================================
   STRONG FORCE
========================================================= */

.force-symbol {

    cursor: pointer;

}


.force-symbol::after {

    content:
        "CLICK FIELD TO PULSE";

    position: absolute;

    bottom: 4%;

    color:
        rgba(255,255,255,.22);

    font-size: .53rem;

    font-weight: 800;

    letter-spacing: .14em;

    transition:
        opacity .25s ease;

}


.force-symbol:hover::after {

    color:
        rgba(255,255,255,.48);

}


.gluon-core {

    transition:

        transform .35s ease,
        box-shadow .35s ease;

}


.force-symbol:hover
.gluon-core {

    transform:
        scale(1.07);

}


.force-symbol.force-pulse
.gluon-core {

    transform:
        scale(1.22);

    box-shadow:

        0 0 35px
        rgba(255,255,255,.30),

        0 0 110px
        rgba(255,59,36,.78);

}


.force-specs div {

    cursor: default;

    transition:

        background .25s ease,
        transform .25s ease;

}


.force-specs div:hover {

    transform:
        translateY(-3px);

    background:
        rgba(255,59,36,.10);

}


/* =========================================================
   PARTICLE BEINGS
========================================================= */

.particle {

    cursor: pointer;

    transition:

        transform .3s ease,
        box-shadow .3s ease,
        filter .3s ease;

}


.particle:hover,
.particle.particle-active {

    transform:
        scale(1.18);

    box-shadow:

        0 0 30px
        rgba(255,255,255,.22),

        0 0 65px
        rgba(255,59,36,.65);

}


.particle-system
.particle-inspector {

    position: absolute;

    right: 20px;
    bottom: 18px;

    z-index: 8;

    max-width: 260px;

    padding:
        10px 13px;

    color:
        rgba(255,255,255,.62);

    background:
        rgba(0,0,0,.35);

    border:
        1px solid
        rgba(255,255,255,.10);

    font-size: .67rem;

    backdrop-filter:
        blur(8px);

}


/* =========================================================
   GEMESPASYS MATRIX
========================================================= */

.matrix-cell {

    position: relative;

    cursor: pointer;

    transition:

        background .2s ease,
        box-shadow .2s ease;

}


.matrix-cell:hover {

    background:
        rgba(255,59,36,.20);

}


.matrix-cell.matrix-active {

    background:
        rgba(255,59,36,.48);

    box-shadow:

        inset 0 0 12px
        rgba(255,96,73,.30);

}


.matrix-cell::after {

    content: "";

    position: absolute;

    left: 50%;
    top: 50%;

    width: 4px;
    height: 4px;

    border-radius: 50%;

    background: #fff;

    opacity: 0;

    transform:
        translate(-50%,-50%);

}


.matrix-cell.matrix-active::after {

    opacity: .85;

}


.matrix-readout {

    margin-top: 15px;

    min-height: 38px;

    padding:
        9px 12px;

    color:
        rgba(255,255,255,.48);

    border:
        1px solid
        rgba(255,255,255,.09);

    font-size: .67rem;

}


.matrix-readout strong {

    color: var(--d1-bright);

}


/* =========================================================
   GRAVITY CARDS
========================================================= */

.gravity-card {

    cursor: pointer;

    transition:

        transform .28s ease,
        opacity .28s ease,
        border-color .28s ease,
        box-shadow .28s ease;

}


.gravity-card:hover {

    transform:
        translateY(-7px);

    border-color:
        rgba(255,59,36,.42);

    box-shadow:
        var(--shadow);

}


.gravity-grid:hover
.gravity-card:not(:hover) {

    opacity: .46;

}


.gravity-icon {

    transition:

        transform .3s ease,
        color .3s ease;

}


.gravity-card:hover
.gravity-icon {

    transform:
        scale(1.1);

    color: var(--d1);

}


/* =========================================================
   CALCULATOR
========================================================= */

.calculator-card input {

    transition:

        border-color .25s ease,
        box-shadow .25s ease,
        background .25s ease;

}


.calculator-card input:focus {

    border-color: var(--d1);

    box-shadow:

        0 0 0 3px
        rgba(255,59,36,.10);

}


.calculator-result div {

    transition:
        background .25s ease;

}


.calculator-result div:hover {

    background:
        rgba(255,59,36,.09);

}


.calculator-result strong {

    transition:
        color .25s ease;

}


.calculation-flash {

    animation:
        resultFlash .65s ease;

}


@keyframes resultFlash {

    0% {

        background:
            rgba(255,59,36,.28);

    }

    100% {

        background:
            transparent;

    }

}


/* =========================================================
   SECTION ENTRY LINE
========================================================= */

.section-heading h2,
.concept-copy h2 {

    position: relative;

}


.section-heading h2::after,
.concept-copy h2::after {

    content: "";

    display: block;

    width: 0;
    height: 2px;

    margin-top: 20px;

    background: var(--d1);

    transition:
        width .7s ease;

}


.section-heading.section-line-active h2::after,
.concept-copy.section-line-active h2::after {

    width: 72px;

}


/* =========================================================
   CURRENT SECTION NAV INDICATOR
========================================================= */

.dimension-nav a {

    position: relative;

}


.dimension-nav a::after {

    content: "";

    position: absolute;

    left: 14px;
    right: 14px;
    bottom: 7px;

    height: 1px;

    background: var(--d1);

    opacity: 0;

    transform:
        scaleX(0);

    transition:

        opacity .25s ease,
        transform .25s ease;

}


.dimension-nav a.active::after {

    opacity: 1;

    transform:
        scaleX(1);

}


/* =========================================================
   RESPONSIVE
========================================================= */

@media (max-width: 900px) {

    .d1-copy-equation {

        opacity: 1;

    }

}


@media (max-width: 580px) {

    .particle-system
    .particle-inspector {

        left: 18px;
        right: 18px;

        max-width: none;

    }

}


/* =========================================================
   REDUCED MOTION
========================================================= */

@media
(prefers-reduced-motion: reduce) {

    .hero-copy {

        transform: none !important;

    }

}