/* ============================================
   MAINFRAME — Design System
   Inspired by lusion.co
   ============================================ */

:root {
  /* Colors */
  --color-primary: #0A84FF;
  --color-secondary: #8D9BB5;
  --color-accent: #00F076;
  --color-dark: #0C0C0F;
  --color-light: #F4F5F7;
  --color-mid: #2A2D35;
  --color-text-light: #EAEDF2;
  --color-text-muted: #4a5060;

  /* Typography */
  --font-display: 'Sora', sans-serif;
  --font-body: 'DM Sans', sans-serif;

  /* Fluid font scale — landonorris pattern */
  --design-width: 1440;
  --design-unit: 16;
  --min-vw: 375px;
  --max-vw: 1920px;
  --fluid-container: clamp(var(--min-vw), 100vw, var(--max-vw));
  --fluid-font: calc(var(--fluid-container) / var(--design-width) * var(--design-unit));

  /* Animation system — landonorris pattern */
  --cubic-default: cubic-bezier(0.65, 0.05, 0, 1);
  --cubic-out: cubic-bezier(0.16, 1, 0.3, 1);
  --cubic-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-default: 0.75s;
  --duration-fast: 0.4s;
  --duration-slow: 1.2s;
  --animation-default: var(--duration-default) var(--cubic-default);
  --animation-fast: var(--duration-fast) var(--cubic-default);
  --animation-spring: 0.6s var(--cubic-spring);

  /* Legacy aliases */
  --ease-smooth: var(--cubic-default);
  --ease-out: var(--cubic-out);
  --duration: var(--duration-default);

  /* Border radius scale */
  --radius-sm: 0.5rem;
  --radius-md: 1rem;
  --radius-lg: 2rem;

  /* Layout */
  --nav-height: 72px;
  --gap: 1.25rem;
  --section-pad: clamp(180px, 26vh, 340px);
  --content-max: 1200px;
  --content-narrow: 800px;
}

/* ============================================
   RESET & BASE
   ============================================ */

*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

html.lenis, html.lenis body {
  height: auto;
}

.lenis.lenis-smooth {
  scroll-behavior: auto !important;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.7;
  color: var(--color-text-light);
  background: var(--color-dark);
  overflow-x: hidden;
}

/* Cool gradient backdrop — fixed ambient mesh behind the whole site
   (shows through the transparent hero canvas and all dark sections) */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(58% 48% at 16% 6%, rgba(10, 132, 255, 0.22), transparent 60%),
    radial-gradient(52% 44% at 87% 2%, rgba(124, 92, 255, 0.18), transparent 60%),
    radial-gradient(72% 66% at 80% 84%, rgba(0, 240, 118, 0.10), transparent 66%),
    radial-gradient(54% 52% at 24% 94%, rgba(255, 46, 110, 0.09), transparent 62%),
    linear-gradient(165deg, #0b0d18 0%, #0a0a10 56%, #07070b 100%);
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: inherit;
  border: none;
  background: none;
  cursor: pointer;
  color: inherit;
}

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

ul {
  list-style: none;
}

::selection {
  background: var(--color-primary);
  color: #fff;
}

/* ============================================
   PRELOADER
   ============================================ */

#loader {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: var(--color-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.8s var(--ease-smooth), visibility 0.8s;
  overflow: hidden;
}

#loader.loaded {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

/* Scan line — uses transform instead of top for GPU compositing */
.loader-scanline {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-primary), var(--color-accent), transparent);
  opacity: 0.6;
  will-change: transform;
  animation: scanline 2.5s linear infinite;
  z-index: 2;
}

@keyframes scanline {
  0% { transform: translateY(0); }
  100% { transform: translateY(100vh); }
}

/* Background grid — static opacity, no animation */
.loader-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(10, 132, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(10, 132, 255, 0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  opacity: 0.4;
}

/* Content */
.loader-inner {
  text-align: center;
  width: 320px;
  position: relative;
  z-index: 3;
}

/* Logo mark in loader */
.loader-logo-mark {
  margin-bottom: 28px;
  display: flex;
  justify-content: center;
}

.loader-mark-svg {
  overflow: visible;
}

.loader-piece {
  transform-box: fill-box;
  transform-origin: center;
  will-change: transform, opacity;
  animation: loaderAssemble 1.2s cubic-bezier(.34,1.4,.5,1) both;
  animation-delay: calc(var(--idx, 0) * 60ms);
}

@keyframes loaderAssemble {
  0%   { transform: translate(var(--dx,0), var(--dy,0)) scale(.4); opacity: 0; }
  60%  { opacity: 1; }
  100% { transform: translate(0,0) scale(1); opacity: 1; }
}

.loader-ping {
  transform-box: fill-box;
  transform-origin: center;
  will-change: transform, opacity;
  animation: loaderPing 2.2s cubic-bezier(0, 0, 0.2, 1) infinite;
  animation-delay: 1s;
}

.loader-ping-dot {
  transform-box: fill-box;
  transform-origin: center;
  will-change: opacity;
  animation: loaderDotBreathe 1.2s ease-in-out infinite;
  animation-delay: 1s;
}

@keyframes loaderPing {
  0%   { transform: scale(1); opacity: 0.7; }
  100% { transform: scale(2.5); opacity: 0; }
}

@keyframes loaderDotBreathe {
  0%, 100% { opacity: 0.4; }
  50%      { opacity: 0.7; }
}

/* Brand text */
.loader-brand {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 2rem;
  letter-spacing: 0.2em;
  margin-bottom: 40px;
  position: relative;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Status text */
.loader-status {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.25em;
  color: var(--color-primary);
  margin-bottom: 24px;
  opacity: 0.9;
  min-height: 1.2em;
}

/* Progress bar */
.loader-bar-track {
  width: 100%;
  height: 2px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 2px;
  overflow: visible;
  margin-bottom: 16px;
  position: relative;
}

.loader-bar {
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  border-radius: 2px;
  transition: width 0.15s linear;
  position: relative;
}

/* Meta row */
.loader-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.loader-percent {
  font-family: 'Courier New', monospace;
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--color-accent);
  letter-spacing: 0.1em;
}

.loader-label {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: rgba(255, 255, 255, 0.2);
}

/* HUD corners */
.loader-corners {
  position: absolute;
  inset: 24px;
  pointer-events: none;
  z-index: 1;
}

.corner {
  position: absolute;
  width: 20px;
  height: 20px;
}

.corner::before,
.corner::after {
  content: '';
  position: absolute;
  background: rgba(10, 132, 255, 0.2);
}

.corner::before {
  width: 100%;
  height: 1px;
}

.corner::after {
  width: 1px;
  height: 100%;
}

.corner-tl { top: 0; left: 0; }
.corner-tl::before { top: 0; left: 0; }
.corner-tl::after { top: 0; left: 0; }

.corner-tr { top: 0; right: 0; }
.corner-tr::before { top: 0; right: 0; }
.corner-tr::after { top: 0; right: 0; }

.corner-bl { bottom: 0; left: 0; }
.corner-bl::before { bottom: 0; left: 0; }
.corner-bl::after { bottom: 0; left: 0; }

.corner-br { bottom: 0; right: 0; }
.corner-br::before { bottom: 0; right: 0; }
.corner-br::after { bottom: 0; right: 0; }

/* ============================================
   NAVIGATION
   ============================================ */

.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(24px, 4vw, 48px);
  transition: background 0.5s var(--ease-smooth);
}

.site-nav.scrolled {
  background: rgba(12, 12, 15, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

/* Nav theme switching */
.site-nav,
[data-nav-theme="dark"] ~ .site-nav {
  color: var(--color-text-light);
}

.site-nav.nav-light {
  color: var(--color-dark);
}

.site-nav.nav-light.scrolled {
  background: rgba(244, 245, 247, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.nav-logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: opacity var(--duration-fast) var(--ease-smooth);
  background: linear-gradient(
    90deg,
    var(--color-primary),
    var(--color-accent),
    var(--color-primary),
    var(--color-accent)
  );
  background-size: 300% 100%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: brandColorShift 4s ease-in-out infinite;
}

.nav-logo:hover {
  opacity: 0.7;
}

.nav-logo:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 4px;
  border-radius: 2px;
}

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-link {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.9rem;
  letter-spacing: 0.02em;
  position: relative;
  transition: opacity var(--duration-fast) var(--ease-smooth);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--color-primary);
  transition: width var(--duration-fast) var(--ease-smooth);
}

.site-nav.nav-light .nav-link::after {
  background: var(--color-primary);
}

.nav-link:hover {
  opacity: 0.7;
}

.nav-link:hover::after {
  width: 100%;
}

.nav-link:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 4px;
  border-radius: 2px;
}

.nav-cta {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-primary);
  transition: opacity var(--duration-fast) var(--ease-smooth);
}

.nav-cta:hover {
  opacity: 0.7;
}

.nav-cta:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 4px;
  border-radius: 2px;
}

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  width: 28px;
  padding: 4px 0;
}

.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: currentColor;
  transition: transform var(--duration-fast) var(--ease-smooth),
              opacity var(--duration-fast) var(--ease-smooth);
}

.nav-toggle.active span:first-child {
  transform: translateY(4px) rotate(45deg);
}

.nav-toggle.active span:last-child {
  transform: translateY(-4px) rotate(-45deg);
}

/* Mobile menu */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 999;
  background: var(--color-dark);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--duration) var(--ease-smooth),
              visibility var(--duration);
}

.mobile-menu.active {
  opacity: 1;
  visibility: visible;
}

.mobile-link {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 2rem;
  color: var(--color-text-light);
  transition: opacity var(--duration-fast) var(--ease-smooth);
}

.mobile-link:hover {
  opacity: 0.6;
}

.mobile-cta {
  color: var(--color-primary);
  font-size: 1.2rem;
  margin-top: 16px;
}

@keyframes brandColorShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

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

.hero {
  position: relative;
  width: 100%;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

#hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 1000px;
  padding: 0 clamp(24px, 4vw, 48px);
  perspective: 1100px;
}

.hero-logo-mark {
  margin-bottom: 20px;
  display: flex;
  justify-content: center;
}

.hero .section-label {
  color: var(--color-primary);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  margin-bottom: 32px;
  opacity: 0.9;
}

.hero-heading {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.6rem, 6vw, 5.8rem);
  line-height: 1.04;
  letter-spacing: -0.03em;
  color: var(--color-text-light);
  text-shadow: 0 0 90px rgba(10, 132, 255, 0.22);
  text-wrap: balance;
  transform-style: preserve-3d;
  will-change: transform;
}

.hero-heading .word {
  display: inline-block;
  vertical-align: top;
  margin-right: 0.25em;
  transform-style: preserve-3d;
}

.scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  opacity: 0.6;
  transition: opacity var(--duration) var(--ease-smooth);
}

.scroll-indicator.hidden {
  opacity: 0;
  pointer-events: none;
}

.scroll-text {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-primary);
}

.scroll-arrow {
  color: var(--color-primary);
}

.scroll-arrow {
  animation: bounceArrow 2s var(--ease-out) infinite;
}

@keyframes bounceArrow {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(8px); }
}

/* ============================================
   SECTIONS — SHARED
   ============================================ */

.section {
  padding: var(--section-pad) 0;
}

.section-inner {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 clamp(24px, 4vw, 48px);
}

.section-center {
  text-align: center;
}

.section-dark {
  background: transparent;
  color: var(--color-text-light);
}

.section-light {
  background: var(--color-light);
  color: var(--color-dark);
}

.section-label {
  display: block;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  margin-bottom: 28px;
}

.section-dark .section-label {
  color: var(--color-primary);
}

.section-light .section-label {
  color: var(--color-primary);
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

.heading-xl {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.2rem, 5.2vw, 4.6rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 40px;
  text-wrap: balance;
}

.heading-lg {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.2rem, 4.5vw, 3.6rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin-bottom: 28px;
}

.section-dark .heading-lg {
  color: var(--color-text-light);
  text-shadow: 0 0 60px rgba(10, 132, 255, 0.12);
}

.body-text {
  font-size: 1.1rem;
  line-height: 1.75;
  max-width: var(--content-narrow);
  margin-bottom: 32px;
}

.section-dark .body-text {
  color: #a0a8b8;
}

.section-light .body-text {
  color: var(--color-text-muted);
}

.body-sub {
  margin-bottom: 56px;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-primary);
  transition: opacity var(--duration-fast) var(--ease-smooth);
}

.text-link:hover {
  opacity: 0.7;
}

.text-link:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 4px;
  border-radius: 2px;
}

.text-link .arrow {
  transition: transform var(--duration-fast) var(--ease-smooth);
}

.text-link:hover .arrow {
  transform: translateX(4px);
}

/* ============================================
   PROJECT GRID
   ============================================ */

.project-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 48px 40px;
  margin-bottom: 64px;
}

.project-card {
  display: block;
  text-decoration: none;
  color: inherit;
  transition: transform var(--duration) var(--ease-smooth);
}

.project-card:hover {
  transform: translateY(-4px);
}

.project-card:active {
  transform: translateY(-2px);
}

/* When a project card is tilt-enabled, the FX layer owns its
   transform (perspective rotate); suppress the plain translate
   hover/active so the two don't fight. The lift is provided by
   the elevated shadow + Z-depth on the inner media instead. */
.project-card.fx-tilt:hover,
.project-card.fx-tilt:active {
  transform: perspective(900px) rotateX(var(--rx)) rotateY(var(--ry));
}

.project-img-wrap {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 18px;
  border: 1px solid rgba(10, 132, 255, 0.1);
  transition: box-shadow var(--duration) var(--ease-smooth);
}

.project-card:hover .project-img-wrap {
  box-shadow: 0 8px 40px rgba(10, 132, 255, 0.1);
}

.project-img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  transition: transform var(--duration) var(--ease-smooth);
}

.project-overlay {
  position: absolute;
  inset: 0;
  background: rgba(10, 132, 255, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--duration-fast) var(--ease-smooth);
}

.project-overlay span {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  color: #fff;
  padding: 10px 24px;
  border: 1.5px solid rgba(255, 255, 255, 0.4);
  border-radius: 8px;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.project-card:hover .project-img {
  transform: scale(1.05);
}

.project-card:hover .project-overlay {
  opacity: 1;
}

.project-card:focus-visible .project-img-wrap {
  outline: 2px solid var(--color-primary);
  outline-offset: 4px;
}

.project-card:active .project-img {
  transform: scale(1.02);
}

.project-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.35rem;
  margin-bottom: 6px;
  color: var(--color-text-light);
}

.project-tags {
  font-size: 0.8rem;
  color: var(--color-secondary);
  letter-spacing: 0.02em;
}

/* ============================================
   INTERACTIVE PARTICLE MARQUEE
   ============================================ */

.particle-text-section {
  position: relative;
  width: 100%;
  height: clamp(180px, 30vh, 320px);
  background: var(--color-dark);
  overflow: hidden;
  border-top: 1px solid rgba(0, 240, 118, 0.08);
  border-bottom: 1px solid rgba(0, 240, 118, 0.08);
}

#particle-text-canvas {
  display: block;
  width: 100%;
  height: 100%;
  cursor: none;
}

.particle-text-hint {
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  pointer-events: none;
}

.particle-text-hint span {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--color-primary);
  opacity: 0.5;
}

/* ============================================
   INTERACTIVE 3D PHYSICS — TORUS PLAYGROUND
   ============================================ */

.physics-section {
  position: relative;
  width: 100%;
  height: 100vh;
  min-height: 600px;
  background: var(--color-dark);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

#physics-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  cursor: default;
}

.physics-overlay {
  position: relative;
  z-index: 1;
  text-align: center;
  pointer-events: none;
  padding: 0 clamp(24px, 4vw, 48px);
}

.physics-heading {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 4.5vw, 3.6rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--color-text-light);
  text-shadow: 0 2px 40px rgba(0, 0, 0, 0.6);
  margin-bottom: 20px;
}

.physics-hint {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--color-primary);
  opacity: 0.5;
}

/* ============================================
   STORY SCROLL — FLOW ART
   ============================================ */

.flow-art {
  width: 100%;
  overflow-x: hidden;
}

.flow-section {
  position: relative;
  min-height: 100vh;
  width: 100%;
  overflow: hidden;
}

.flow-inner {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 1.5rem;
  min-height: 100vh;
  padding: clamp(2rem, 8vw, 4rem) 4vw 4vw;
  will-change: transform;
  transform-origin: bottom left;
}

.flow-label {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
}

.flow-rule {
  border: none;
  height: 1px;
  margin: 2vw 0;
}

.flow-rule-light {
  background: rgba(255, 255, 255, 0.25);
}

.flow-rule-dark {
  background: rgba(12, 12, 15, 0.25);
}

.flow-heading {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(3.5rem, 12vw, 14rem);
  line-height: 0.85;
  text-transform: uppercase;
  letter-spacing: -0.03em;
}

.flow-body {
  max-width: 50ch;
  font-family: var(--font-body);
  font-size: clamp(1rem, 2.5vw, 2rem);
  font-weight: 400;
  line-height: 1.6;
}

.flow-cols {
  display: flex;
  flex-wrap: wrap;
  gap: 3vw;
}

.flow-col-item {
  flex: 1;
  min-width: 180px;
}

.flow-col-title {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 8px;
}

.flow-col-desc {
  font-family: var(--font-body);
  font-size: clamp(0.85rem, 1.3vw, 1.05rem);
  line-height: 1.6;
  opacity: 0.75;
}

@media (max-width: 768px) {
  .flow-heading {
    font-size: clamp(2.5rem, 14vw, 5rem);
  }

  .flow-cols {
    flex-direction: column;
    gap: 24px;
  }
}

/* ============================================
   PHILOSOPHY (Light Section)
   ============================================ */

.philosophy {
  padding-bottom: clamp(60px, 8vh, 100px);
}

.philosophy .heading-xl {
  color: var(--color-dark);
  max-width: 900px;
  margin-bottom: 64px;
}

.text-gradient-dark {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.philosophy-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  margin-bottom: 80px;
}

.philosophy-col .body-text {
  max-width: 520px;
  color: var(--color-text-muted);
}

.philosophy-col .body-text + .body-text {
  margin-top: 20px;
}

.philosophy-values {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.value-item {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 20px;
  align-items: start;
  padding: 24px 0;
  border-top: 1px solid rgba(10, 132, 255, 0.12);
  transition: opacity var(--animation-fast);
}

.value-item:last-child {
  border-bottom: 1px solid rgba(10, 132, 255, 0.12);
}

.value-item:hover {
  opacity: 0.8;
}

.value-number {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.75rem;
  color: var(--color-primary);
  letter-spacing: 0.05em;
  min-width: 28px;
  padding-top: 2px;
}

.value-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-dark);
  margin-bottom: 6px;
  letter-spacing: -0.01em;
}

.value-desc {
  font-family: var(--font-body);
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--color-text-muted);
}

.philosophy-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  padding-top: 48px;
  padding-bottom: 16px;
  border-top: 1px solid rgba(10, 132, 255, 0.08);
}

.stat-item {
  text-align: center;
}

.stat-number {
  display: block;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.8rem, 5vw, 4.5rem);
  color: var(--color-dark);
  letter-spacing: -0.04em;
  line-height: 1.0;
  margin-bottom: 10px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-text-muted);
}

/* ============================================
   SERVICES (Light Section)
   ============================================ */

.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin-top: 40px;
}

.service-tab {
  border-top: 1px solid rgba(10, 132, 255, 0.1);
}

.service-tab:last-child {
  border-bottom: 1px solid rgba(10, 132, 255, 0.1);
}

.service-tab.active {
  border-left: 3px solid var(--color-primary);
  padding-left: 16px;
}

.service-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  padding: 28px 0;
  font-size: 1rem;
  transition: opacity var(--duration-fast) var(--ease-smooth);
}

.service-trigger:hover {
  opacity: 0.6;
}

.service-trigger:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: -2px;
  border-radius: 2px;
}

.service-letter {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.8rem;
  color: var(--color-primary);
  width: 48px;
  flex-shrink: 0;
  letter-spacing: 0.05em;
}

.service-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.35rem;
  color: var(--color-dark);
  flex-grow: 1;
  text-align: left;
}

.service-toggle {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.5rem;
  color: var(--color-secondary);
  transition: transform var(--duration-fast) var(--ease-smooth);
}

.service-tab.active .service-toggle {
  transform: rotate(45deg);
}

.service-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--duration) var(--ease-smooth),
              padding var(--duration) var(--ease-smooth);
}

.service-tab.active .service-content {
  max-height: 300px;
  padding-bottom: 24px;
}

.service-content ul {
  padding-left: 48px;
}

.service-content li {
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-text-muted);
  padding: 6px 0;
}

/* ============================================
   CTA SECTION + LAMP EFFECT
   ============================================ */

.cta-section {
  position: relative;
  padding: clamp(100px, 16vh, 200px) 0;
  overflow: hidden;
  min-height: 80vh;
  display: flex;
  align-items: flex-start;
  justify-content: center;
}

.cta-content {
  position: relative;
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  /* Drop below the lamp's light line so it's lit from above, not bisected */
  margin-top: clamp(240px, 38vh, 420px);
}

.cta-section .heading-xl {
  margin-bottom: 32px;
}

/* --- Lamp --- */

.lamp {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}

.lamp-glow-area {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  transform: scaleY(1.25);
  transform-origin: top center;
}

.lamp-cone {
  position: absolute;
  top: 0;
  height: 14rem;
  width: 15rem;
  opacity: 0.5;
  transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1),
              opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.lamp.lamp-active .lamp-cone {
  width: 30rem;
  opacity: 1;
}

.lamp-cone-left {
  right: 50%;
  background: conic-gradient(from 70deg at center top, var(--color-primary), transparent 40%);
  mask-image:
    linear-gradient(to right, transparent, white 10rem),
    linear-gradient(to top, transparent, white 10rem);
  mask-composite: intersect;
  -webkit-mask-image:
    linear-gradient(to right, transparent, white 10rem),
    linear-gradient(to top, transparent, white 10rem);
  -webkit-mask-composite: source-in;
}

.lamp-cone-right {
  left: 50%;
  background: conic-gradient(from 250deg at center top, transparent 60%, var(--color-accent));
  mask-image:
    linear-gradient(to left, transparent, white 10rem),
    linear-gradient(to top, transparent, white 10rem);
  mask-composite: intersect;
  -webkit-mask-image:
    linear-gradient(to left, transparent, white 10rem),
    linear-gradient(to top, transparent, white 10rem);
  -webkit-mask-composite: source-in;
}

.lamp-blur-bg {
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 12rem;
  transform: translateY(3rem) scaleX(1.5);
  background: var(--color-dark);
  filter: blur(40px);
}

.lamp-blur-mid {
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 12rem;
  background: transparent;
  opacity: 0.1;
  backdrop-filter: blur(12px);
}

.lamp-orb {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 28rem;
  height: 9rem;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: var(--color-primary);
  opacity: 0;
  filter: blur(60px);
  transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.lamp.lamp-active .lamp-orb {
  opacity: 0.35;
}

.lamp-orb-soft {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 8rem;
  height: 9rem;
  transform: translate(-50%, calc(-50% - 1.5rem));
  border-radius: 50%;
  background: var(--color-accent);
  opacity: 0;
  filter: blur(40px);
  transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1),
              opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.lamp.lamp-active .lamp-orb-soft {
  width: 16rem;
  opacity: 0.4;
}

.lamp-line {
  position: absolute;
  top: 50%;
  left: 50%;
  height: 2px;
  width: 15rem;
  transform: translate(-50%, -3.5rem);
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  opacity: 0;
  transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1),
              opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.lamp.lamp-active .lamp-line {
  width: 30rem;
  opacity: 1;
}

.lamp-ceiling {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: calc(50% - 6.5rem);
  background: var(--color-dark);
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 18px 42px;
  border-radius: 10px;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: transform var(--duration-fast) var(--ease-smooth),
              box-shadow var(--duration-fast) var(--ease-smooth);
}

.btn:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 4px;
}

.btn:active {
  transform: scale(0.97);
}

.btn-primary {
  background: linear-gradient(180deg, #3D9EFF 0%, #0A84FF 40%, #0070E0 100%);
  color: #fff;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.15) inset,
              0 4px 16px rgba(10, 132, 255, 0.3);
}

.btn-primary:hover {
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.15) inset,
              0 8px 24px rgba(10, 132, 255, 0.4);
  transform: translateY(-1px);
}

.btn-accent {
  background: linear-gradient(180deg, #5FFF9F 0%, #00F076 40%, #00CC62 100%);
  color: var(--color-dark);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.2) inset,
              0 4px 16px rgba(0, 240, 118, 0.25);
}

.btn-accent:hover {
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.2) inset,
              0 8px 24px rgba(0, 240, 118, 0.35);
  transform: translateY(-1px);
}

/* ============================================
   FOOTER
   ============================================ */

.site-footer {
  background: var(--color-dark);
  border-top: 1px solid rgba(10, 132, 255, 0.1);
  padding: 80px 0 40px;
}

.footer-top {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 clamp(24px, 4vw, 48px);
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 64px;
}

.footer-logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.2rem;
  letter-spacing: 0.12em;
  display: block;
  margin-bottom: 8px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.footer-tagline {
  font-size: 0.9rem;
  color: var(--color-secondary);
}

.footer-heading {
  display: block;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.footer-nav a,
.footer-contact a,
.footer-social a {
  display: block;
  font-size: 0.9rem;
  color: var(--color-text-light);
  padding: 4px 0;
  transition: opacity var(--duration-fast) var(--ease-smooth);
}

.footer-nav a:hover,
.footer-contact a:hover,
.footer-social a:hover {
  opacity: 0.6;
}

.footer-nav a:focus-visible,
.footer-contact a:focus-visible,
.footer-social a:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 4px;
  border-radius: 2px;
}

.footer-bottom {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 24px clamp(24px, 4vw, 48px) 0;
  border-top: 1px solid rgba(10, 132, 255, 0.08);
  font-size: 0.8rem;
  color: var(--color-secondary);
}

/* ============================================
   BRAND COLOR ACCENTS
   ============================================ */

.text-gradient {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ============================================
   CROSS / PLUS DECORATORS — lusion.co pattern
   ============================================ */

.cross {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  position: relative;
  flex-shrink: 0;
  opacity: 0.35;
}

.cross::before,
.cross::after {
  content: '';
  position: absolute;
  background: currentColor;
}

.cross::before {
  width: 1px;
  height: 100%;
}

.cross::after {
  width: 100%;
  height: 1px;
}

/* ============================================
   CHAR ROLLUP REVEAL — lusion.co signature
   ============================================ */

.rollup-line {
  display: block;
}

.rollup-word {
  display: inline-block;
  white-space: nowrap;
}

.rollup-char {
  display: inline-block;
  opacity: 0;
  will-change: transform, opacity;
}

@media (prefers-reduced-motion: reduce) {
  .rollup-char { opacity: 1 !important; transform: none !important; }
}

/* ============================================
   SCROLL PROGRESS INDICATOR — lusion.co style
   ============================================ */

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  width: 100%;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--color-primary, #0A84FF), var(--color-accent, #00F076));
  z-index: 9999;
  pointer-events: none;
  will-change: transform;
}

/* ============================================
   OUR APPROACH — animated process timeline
   ============================================ */

.approach-flow {
  position: relative;
  margin-top: clamp(56px, 9vh, 110px);
}

.approach-track {
  position: absolute;
  top: 7px;
  left: 0;
  right: 0;
  height: 1px;
  background: rgba(141, 155, 181, 0.18);
  overflow: visible;
}

.approach-track-fill {
  position: absolute;
  inset: 0;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  box-shadow: 0 0 16px rgba(10, 132, 255, 0.45);
}

.approach-pulse {
  position: absolute;
  top: 50%;
  left: 0;
  width: 7px;
  height: 7px;
  margin: -3.5px 0 0 -3.5px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 12px 2px rgba(0, 240, 118, 0.7);
  opacity: 0;
}

.approach-flow.is-active .approach-pulse {
  animation: approachPulse 3.4s var(--cubic-default) 1s infinite;
}

@keyframes approachPulse {
  0%   { left: 0;   opacity: 0; }
  8%   { opacity: 1; }
  92%  { opacity: 1; }
  100% { left: 100%; opacity: 0; }
}

.approach-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(20px, 3vw, 48px);
}

.approach-step {
  position: relative;
  padding-right: clamp(8px, 1.5vw, 24px);
}

.approach-step-dot {
  display: block;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: var(--color-dark);
  border: 1px solid rgba(141, 155, 181, 0.4);
  position: relative;
  z-index: 1;
  transition: border-color var(--animation-fast), box-shadow var(--animation-fast), background-color var(--animation-fast);
}

.approach-flow.is-active .approach-step-dot {
  background: var(--color-primary);
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(10, 132, 255, 0.14), 0 0 14px rgba(10, 132, 255, 0.5);
}
.approach-flow.is-active .approach-step:last-child .approach-step-dot {
  background: var(--color-accent);
  border-color: var(--color-accent);
  box-shadow: 0 0 0 4px rgba(0, 240, 118, 0.14), 0 0 14px rgba(0, 240, 118, 0.5);
}

.approach-step-no {
  display: block;
  margin-top: 22px;
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--color-secondary);
}

.approach-step-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.15rem, 1.6vw, 1.5rem);
  letter-spacing: -0.02em;
  color: var(--color-text-light);
  margin: 10px 0 12px;
}

.approach-step-text {
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--color-secondary);
  max-width: 26ch;
}

@media (max-width: 880px) {
  .approach-track { display: none; }
  .approach-steps { grid-template-columns: 1fr 1fr; gap: 36px 24px; }
}

@media (max-width: 520px) {
  .approach-steps { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .approach-track-fill { transform: scaleX(1); }
  .approach-flow .approach-pulse { animation: none; }
}

/* ============================================
   HERO BOTTOM BAR — lusion.co style
   ============================================ */

.hero-bottom-bar {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(16px, 3vw, 40px);
  height: 48px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.hero-bottom-bar .cross {
  color: var(--color-primary);
  opacity: 0.4;
}

.hero-scroll-ticker {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--color-primary);
  opacity: 0.6;
  display: flex;
  align-items: center;
  gap: 16px;
}

.hero-scroll-ticker .ticker-arrow {
  display: inline-block;
  animation: bounceArrow 2s var(--cubic-out) infinite;
}

/* ============================================
   MARQUEE BAND
   ============================================ */

.marquee-band {
  width: 100%;
  overflow: hidden;
  background: var(--color-dark);
  border-top: 1px solid rgba(10, 132, 255, 0.08);
  border-bottom: 1px solid rgba(10, 132, 255, 0.08);
  padding: 18px 0;
  position: relative;
}

.marquee-band::before,
.marquee-band::after {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  width: 80px;
  z-index: 2;
  pointer-events: none;
}

.marquee-band::before {
  left: 0;
  background: linear-gradient(to right, var(--color-dark), transparent);
}

.marquee-band::after {
  right: 0;
  background: linear-gradient(to left, var(--color-dark), transparent);
}

.marquee-track {
  display: flex;
  width: max-content;
  animation: marqueeScroll 28s linear infinite;
  will-change: transform;
}

.marquee-track:hover {
  animation-play-state: paused;
}

@keyframes marqueeScroll {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.marquee-item {
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 0 28px;
  white-space: nowrap;
}

.marquee-text {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--color-text-light);
  opacity: 0.5;
}

.marquee-dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--color-primary);
  opacity: 0.6;
  flex-shrink: 0;
}

.marquee-accent {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 1;
}

/* ============================================
   REVEAL ANIMATION SETUP
   ============================================ */

.reveal-el {
  will-change: transform, opacity;
}

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

@media (max-width: 1024px) {
  .project-grid {
    gap: 24px;
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
}

@media (max-width: 768px) {
  :root {
    --nav-height: 60px;
  }

  .nav-links,
  .nav-cta {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .hero {
    min-height: 500px;
  }

  .hero-heading {
    font-size: clamp(1.8rem, 7vw, 2.8rem);
  }

  .hero-content {
    padding: 0 24px;
  }

  .project-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .physics-section {
    height: 80vh;
    min-height: 500px;
  }

  .physics-heading {
    font-size: clamp(1.4rem, 6vw, 2rem);
  }

  .philosophy-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .philosophy-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .services-grid {
    margin-top: 24px;
  }

  .service-letter {
    width: 36px;
    font-size: 1.2rem;
  }

  .service-content ul {
    padding-left: 36px;
  }

  .cta-section .heading-xl {
    font-size: clamp(1.6rem, 6vw, 2.4rem);
  }
}

@media (max-width: 480px) {
  .hero-heading {
    font-size: 1.6rem;
  }

  .heading-xl {
    font-size: 1.5rem;
  }

  .heading-lg {
    font-size: 1.3rem;
  }

  .btn {
    padding: 14px 28px;
    font-size: 0.9rem;
  }
}

/* ============================================================
   FX LAYER — 21st.dev-inspired components, re-built vanilla.
   ============================================================ */

@property --beam-angle {
  syntax: '<angle>';
  inherits: false;
  initial-value: 0deg;
}

.btn-beam {
  position: relative;
  isolation: isolate;
  overflow: visible;
}

.btn-beam::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1.5px;
  background: conic-gradient(
    from var(--beam-angle),
    transparent 0deg,
    transparent 300deg,
    var(--color-primary) 330deg,
    var(--color-accent) 350deg,
    #ffffff 360deg
  );
  -webkit-mask:
    linear-gradient(#000 0 0) content-box,
    linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask:
    linear-gradient(#000 0 0) content-box,
    linear-gradient(#000 0 0);
  mask-composite: exclude;
  pointer-events: none;
  opacity: 0.9;
  animation: beamSpin 4s linear infinite;
}

.btn-beam::after {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  background: conic-gradient(
    from var(--beam-angle),
    transparent 0deg,
    transparent 320deg,
    rgba(10, 132, 255, 0.55) 345deg,
    rgba(0, 240, 118, 0.55) 360deg
  );
  filter: blur(7px);
  opacity: 0.55;
  z-index: -1;
  pointer-events: none;
  animation: beamSpin 4s linear infinite;
}

@keyframes beamSpin {
  to { --beam-angle: 360deg; }
}

.btn-beam:hover::before { opacity: 1; }
.btn-beam:hover::after { opacity: 0.8; }

@media (prefers-reduced-motion: reduce) {
  .btn-beam::before,
  .btn-beam::after { animation: none; }
}

@supports not (background: conic-gradient(from var(--beam-angle), red, blue)) {
  .btn-beam::before {
    background: linear-gradient(120deg, var(--color-primary), var(--color-accent));
    opacity: 0.5;
    animation: none;
  }
  .btn-beam::after { display: none; }
}

/* ---------- SHIMMER TEXT ---------- */

.shimmer-text {
  background: linear-gradient(
    100deg,
    currentColor 0%,
    currentColor 40%,
    rgba(255, 255, 255, 0.95) 50%,
    currentColor 60%,
    currentColor 100%
  );
  background-size: 220% 100%;
  background-position: 130% 0;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: var(--color-dark);
  animation: shimmerSweep 4.5s var(--cubic-out) infinite;
}

.shimmer-text--light { color: var(--color-text-light); }

@keyframes shimmerSweep {
  0%   { background-position: 130% 0; }
  45%  { background-position: -30% 0; }
  100% { background-position: -30% 0; }
}

@media (prefers-reduced-motion: reduce) {
  .shimmer-text { animation: none; -webkit-text-fill-color: currentColor; }
}

/* ---------- SPOTLIGHT + 3D TILT CARDS ---------- */

.fx-tilt {
  --rx: 0deg;
  --ry: 0deg;
  transform: perspective(900px) rotateX(var(--rx)) rotateY(var(--ry));
  transform-style: preserve-3d;
  transition: transform 0.5s var(--cubic-out);
  will-change: transform;
}

.fx-tilt.is-tilting {
  transition: transform 0.12s linear;
}

.fx-spot {
  --mx: 50%;
  --my: 50%;
  position: relative;
}

.fx-spot .fx-spot-glow {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.4s var(--cubic-out);
  background: radial-gradient(
    240px circle at var(--mx) var(--my),
    rgba(10, 132, 255, 0.34),
    rgba(0, 240, 118, 0.12) 42%,
    transparent 70%
  );
  mix-blend-mode: screen;
  z-index: 3;
}

.fx-spot:hover .fx-spot-glow,
.fx-spot.is-tilting .fx-spot-glow { opacity: 1; }

.fx-spot .fx-spot-border {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.4s var(--cubic-out);
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-mask:
    radial-gradient(160px circle at var(--mx) var(--my), #000 0%, transparent 70%) padding-box,
    radial-gradient(160px circle at var(--mx) var(--my), #000 0%, transparent 70%);
  -webkit-mask-composite: xor;
  mask:
    radial-gradient(160px circle at var(--mx) var(--my), #000 0%, transparent 70%) padding-box,
    radial-gradient(160px circle at var(--mx) var(--my), #000 0%, transparent 70%);
  mask-composite: exclude;
  z-index: 4;
}

.fx-spot:hover .fx-spot-border,
.fx-spot.is-tilting .fx-spot-border { opacity: 0.9; }

.fx-tilt [data-depth] {
  transform: translateZ(var(--z, 0px));
  transition: transform 0.5s var(--cubic-out);
  transform-style: preserve-3d;
}

@media (prefers-reduced-motion: reduce), (hover: none), (pointer: coarse) {
  .fx-tilt { transform: none !important; }
  .fx-tilt [data-depth] { transform: none !important; }
}

/* ---------- ANIMATED BEAM DIAGRAM ---------- */

.beam-diagram {
  position: relative;
  width: 100%;
  max-width: 560px;
  margin: 8px 0 56px;
  aspect-ratio: 560 / 220;
}

.beam-diagram svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
}

.beam-path-bg {
  fill: none;
  stroke: rgba(141, 155, 181, 0.18);
  stroke-width: 1.4;
}

.beam-path-fg {
  fill: none;
  stroke-width: 1.8;
  stroke-linecap: round;
}

.beam-node {
  position: absolute;
  transform: translate(-50%, -50%);
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 15px;
  border-radius: 999px;
  background: rgba(18, 19, 24, 0.9);
  border: 1px solid rgba(141, 155, 181, 0.18);
  box-shadow: 0 8px 30px -12px rgba(0, 0, 0, 0.8),
              0 0 0 1px rgba(10, 132, 255, 0.05) inset;
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--color-text-light);
  white-space: nowrap;
  z-index: 2;
}

.beam-node-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-primary);
  box-shadow: 0 0 10px 1px rgba(10, 132, 255, 0.7);
  flex-shrink: 0;
}

.beam-node--accent .beam-node-dot {
  background: var(--color-accent);
  box-shadow: 0 0 10px 1px rgba(0, 240, 118, 0.7);
}

.beam-node--hub {
  padding: 12px 20px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.06em;
  background: rgba(12, 12, 15, 0.95);
  border-color: rgba(10, 132, 255, 0.4);
  box-shadow: 0 10px 40px -10px rgba(10, 132, 255, 0.5),
              0 0 0 1px rgba(10, 132, 255, 0.12) inset;
}

.beam-hub-orbit {
  position: absolute;
  inset: -14px;
  border-radius: 999px;
  border: 1px dashed rgba(141, 155, 181, 0.22);
  animation: orbitSpin 14s linear infinite;
  pointer-events: none;
}

.beam-hub-orbit::before {
  content: '';
  position: absolute;
  top: -3px;
  left: 50%;
  width: 6px;
  height: 6px;
  margin-left: -3px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 10px 1px rgba(0, 240, 118, 0.8);
}

@keyframes orbitSpin {
  to { transform: rotate(360deg); }
}

@media (prefers-reduced-motion: reduce) {
  .beam-hub-orbit { animation: none; }
}

@media (max-width: 560px) {
  .beam-diagram { display: none; }
}

/* ---------- METEORS BACKGROUND ---------- */

.meteor-layer {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
  -webkit-mask-image: radial-gradient(ellipse 90% 80% at 50% 40%, #000 35%, transparent 85%);
  mask-image: radial-gradient(ellipse 90% 80% at 50% 40%, #000 35%, transparent 85%);
}

.work {
  position: relative;
}

.work .section-inner {
  position: relative;
  z-index: 1;
}

.meteor-layer--work {
  bottom: auto;
  height: clamp(420px, 52vh, 640px);
  -webkit-mask-image:
    radial-gradient(ellipse 80% 90% at 50% 30%, #000 30%, transparent 80%),
    linear-gradient(to bottom, #000 55%, transparent 92%);
  -webkit-mask-composite: source-in;
  mask-image:
    radial-gradient(ellipse 80% 90% at 50% 30%, #000 30%, transparent 80%),
    linear-gradient(to bottom, #000 55%, transparent 92%);
  mask-composite: intersect;
}

.meteor {
  position: absolute;
  top: -10%;
  width: 2px;
  height: 2px;
  border-radius: 50%;
  background: var(--color-secondary);
  box-shadow: 0 0 7px 1px rgba(141, 155, 181, 0.7);
  opacity: 0;
  transform: rotate(var(--angle, 215deg)) translateX(0);
  animation: meteorFall var(--dur, 6s) var(--delay, 0s) linear infinite;
}

.meteor::before {
  content: '';
  position: absolute;
  top: 50%;
  right: 1px;
  width: var(--tail, 70px);
  height: 1px;
  transform: translateY(-50%);
  background: linear-gradient(90deg, rgba(141, 155, 181, 0.8), transparent);
}

.meteor--blue { background: var(--color-primary); box-shadow: 0 0 8px 1px rgba(10, 132, 255, 0.8); }
.meteor--blue::before { background: linear-gradient(90deg, rgba(10, 132, 255, 0.85), transparent); }

@keyframes meteorFall {
  0%   { opacity: 0; transform: rotate(var(--angle, 215deg)) translateX(0); }
  8%   { opacity: 1; }
  90%  { opacity: 1; }
  100% { opacity: 0; transform: rotate(var(--angle, 215deg)) translateX(var(--travel, 900px)); }
}

@media (prefers-reduced-motion: reduce) {
  .meteor-layer { display: none; }
}