/* ============================================
   MODERN Demo — 2026 Design System
   ============================================ */

@layer reset, tokens, base, components, utilities;

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

  html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: clip;
    max-width: 100%;
    overscroll-behavior-x: none;
    touch-action: pan-y pinch-zoom;
  }

  @media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after {
      animation-duration: 0.01ms !important;
      animation-iteration-count: 1 !important;
      transition-duration: 0.01ms !important;
    }
  }

  img, svg { display: block; max-width: 100%; }
  button { font: inherit; cursor: pointer; border: none; background: none; }
  a { color: inherit; text-decoration: none; }
}

@layer tokens {
  :root {
    --accent: #6366f1;
    --accent-rgb: 99, 102, 241;
    --accent-glow: rgba(var(--accent-rgb), 0.4);
    --accent-secondary: #06b6d4;
    --accent-tertiary: #a855f7;

    --bg-deep: #030014;
    --bg-surface: rgba(255, 255, 255, 0.03);
    --bg-glass: rgba(255, 255, 255, 0.05);
    --border-glass: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(255, 255, 255, 0.15);

    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;

    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;

    --blur: 20px;
    --anim-speed: 1;

    --header-h: 72px;
    --max-w: 1200px;
    --section-gap: clamp(4rem, 10vw, 8rem);
  }
}

@layer base {
  body {
    font-family: var(--font-sans);
    background: var(--bg-deep);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: clip;
    max-width: 100%;
    overscroll-behavior-x: none;
    touch-action: pan-y pinch-zoom;
    min-height: 100dvh;
    position: relative;
  }

  main {
    overflow-x: clip;
    max-width: 100%;
  }

  ::selection {
    background: var(--accent);
    color: white;
  }
}

/* ---- Aurora Background ---- */
.aurora {
  position: fixed;
  inset: 0;
  z-index: -2;
  overflow: clip;
  pointer-events: none;
  clip-path: inset(0);
}

.aurora__blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
  animation: aurora-drift calc(20s / var(--anim-speed)) ease-in-out infinite alternate;
}

.aurora__blob--1 {
  width: 60vw;
  height: 60vw;
  top: -20%;
  left: -10%;
  background: radial-gradient(circle, var(--accent) 0%, transparent 70%);
}

.aurora__blob--2 {
  width: 50vw;
  height: 50vw;
  top: 40%;
  right: -15%;
  background: radial-gradient(circle, var(--accent-secondary) 0%, transparent 70%);
  animation-delay: -7s;
}

.aurora__blob--3 {
  width: 40vw;
  height: 40vw;
  bottom: -10%;
  left: 30%;
  background: radial-gradient(circle, var(--accent-tertiary) 0%, transparent 70%);
  animation-delay: -14s;
}

@keyframes aurora-drift {
  0% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(5%, 3%) scale(1.05); }
  66% { transform: translate(-3%, 5%) scale(0.95); }
  100% { transform: translate(2%, -2%) scale(1.02); }
}

#particles {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
}

/* ---- Cursor Glow ---- */
.cursor-glow {
  position: fixed;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(var(--accent-rgb), 0.12) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
  transform: translate(-50%, -50%);
  transition: opacity 0.3s;
  opacity: 0;
}

body:hover .cursor-glow {
  opacity: 1;
}

@media (pointer: coarse) {
  .cursor-glow { display: none; }
}

/* ---- Header ---- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem clamp(1.5rem, 4vw, 3rem);
  height: var(--header-h);
  background: rgba(3, 0, 20, 0.6);
  backdrop-filter: blur(var(--blur));
  -webkit-backdrop-filter: blur(var(--blur));
  border-bottom: 1px solid var(--border-glass);
  transition: background 0.3s;
}

.header--scrolled {
  background: rgba(3, 0, 20, 0.85);
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: 0.05em;
}

.logo__mark {
  color: var(--accent);
  font-size: 1.2rem;
  display: inline-block;
  animation: logo-spin calc(8s / var(--anim-speed)) linear infinite;
}

@keyframes logo-spin {
  0% { transform: rotateY(0deg); }
  100% { transform: rotateY(360deg); }
}

.nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav__link {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: color 0.2s, background 0.2s;
}

.nav__link:hover {
  color: var(--text-primary);
  background: var(--bg-glass);
}

.nav__link--cta {
  margin-left: 0.5rem;
  background: var(--accent);
  color: white !important;
}

.nav__link--cta:hover {
  background: color-mix(in srgb, var(--accent) 85%, white);
  box-shadow: 0 0 24px var(--accent-glow);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 0.5rem;
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

.menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---- Hero ---- */
.hero {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: calc(var(--header-h) + 2rem) clamp(1.5rem, 4vw, 3rem) 2rem;
  max-width: min(calc(var(--max-w) + 4rem), 100%);
  margin: 0 auto;
  position: relative;
  overflow-x: clip;
  width: 100%;
}

.hero__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
  width: 100%;
  max-width: 100%;
  min-width: 0;
}

.hero__content {
  text-align: left;
  min-width: 0;
  max-width: 100%;
}

.hero__visual {
  position: relative;
  height: clamp(320px, 50vh, 520px);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  max-width: 100%;
  min-width: 0;
}

.hero__3d-wrap {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 280px;
  border-radius: var(--radius-xl);
  background: radial-gradient(ellipse at center, rgba(var(--accent-rgb), 0.08) 0%, transparent 70%);
  border: 1px solid var(--border-glass);
  overflow: hidden;
}

#hero-3d {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

.hero__orbit {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(var(--accent-rgb), 0.15);
  pointer-events: none;
}

.hero__orbit--1 {
  inset: 10%;
  animation: orbit-spin calc(20s / var(--anim-speed)) linear infinite;
}

.hero__orbit--2 {
  inset: 20%;
  animation: orbit-spin calc(15s / var(--anim-speed)) linear infinite reverse;
  border-color: rgba(6, 182, 212, 0.15);
}

.hero__orbit--3 {
  inset: 30%;
  animation: orbit-spin calc(25s / var(--anim-speed)) linear infinite;
  border-color: rgba(168, 85, 247, 0.15);
}

@keyframes orbit-spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.hero__float-card {
  position: absolute;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1.25rem;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
  backdrop-filter: blur(12px);
  animation: float calc(4s / var(--anim-speed)) ease-in-out infinite;
  white-space: nowrap;
  width: max-content;
  max-width: calc(100% - 1rem);
  z-index: 10;
  overflow: hidden;
  text-overflow: ellipsis;
}

.hero__float-card--1 {
  top: 10%;
  right: 0;
  animation-delay: 0s;
}

.hero__float-card--2 {
  bottom: 15%;
  left: 0;
  animation-delay: -2s;
}

.hero__float-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent-glow);
}

.hero__float-dot--cyan {
  background: var(--accent-secondary);
  box-shadow: 0 0 8px rgba(6, 182, 212, 0.5);
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

/* ---- Marquee ---- */
.marquee {
  margin-top: 3rem;
  width: 100%;
  max-width: 100%;
  overflow-x: clip;
  overflow-y: hidden;
  contain: paint;
  position: relative;
  mask-image: linear-gradient(90deg, transparent, black 10%, black 90%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, black 10%, black 90%, transparent);
}

.marquee__track {
  display: flex;
  gap: 3rem;
  width: max-content;
  animation: marquee calc(30s / var(--anim-speed)) linear infinite;
  will-change: transform;
}

.marquee__track span {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  white-space: nowrap;
}

@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  backdrop-filter: blur(12px);
  max-width: 100%;
  flex-wrap: wrap;
  justify-content: center;
  text-align: center;
}

.pulse {
  width: 8px;
  height: 8px;
  background: #22c55e;
  border-radius: 50%;
  animation: pulse calc(2s / var(--anim-speed)) ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}

.hero__title {
  font-size: clamp(2.5rem, 8vw, 5.5rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
}

.hero__line {
  display: block;
}

.hero__line--gradient,
.text-gradient {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-secondary) 50%, var(--accent-tertiary) 100%);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero__line--shimmer {
  animation: gradient-shift calc(6s / var(--anim-speed)) ease infinite;
}

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

.hero__line[data-split] .char {
  display: inline-block;
  opacity: 0;
  transform: translateY(40px) rotateX(-40deg);
  animation: char-reveal 0.6s ease forwards;
  animation-delay: calc(var(--char-i) * 0.04s + 0.3s);
}

@keyframes char-reveal {
  to {
    opacity: 1;
    transform: translateY(0) rotateX(0);
  }
}

.hero__subtitle {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: var(--text-secondary);
  max-width: 520px;
  margin-bottom: 2.5rem;
  line-height: 1.7;
}

.hero__actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
  position: relative;
  overflow: hidden;
}

.btn__shine {
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, transparent 40%, rgba(255,255,255,0.25) 50%, transparent 60%);
  transform: translateX(-100%);
  animation: btn-shine calc(3s / var(--anim-speed)) ease-in-out infinite;
}

@keyframes btn-shine {
  0%, 80%, 100% { transform: translateX(-100%); }
  40% { transform: translateX(100%); }
}

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

.btn--primary {
  background: var(--accent);
  color: white;
  box-shadow: 0 4px 24px var(--accent-glow);
}

.btn--primary:hover {
  box-shadow: 0 8px 32px var(--accent-glow);
  transform: translateY(-2px);
}

.btn--ghost {
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  color: var(--text-primary);
  backdrop-filter: blur(12px);
}

.btn--ghost:hover {
  border-color: var(--border-hover);
  background: rgba(255, 255, 255, 0.08);
}

.btn--sm {
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
}

.hero__stats {
  display: flex;
  gap: clamp(1.5rem, 4vw, 3rem);
  flex-wrap: wrap;
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 1rem 1.25rem;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  backdrop-filter: blur(12px);
  transition: transform 0.3s, border-color 0.3s;
}

.stat:hover {
  border-color: var(--border-hover);
}

.stat__value {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  background: linear-gradient(180deg, var(--text-primary), var(--text-secondary));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat__suffix {
  font-size: 1rem;
  color: var(--text-muted);
  margin-top: -0.25rem;
}

.stat__label {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* ---- Sections ---- */
.section {
  padding: var(--section-gap) clamp(1.5rem, 4vw, 3rem);
  max-width: var(--max-w);
  margin: 0 auto;
  overflow-x: clip;
  width: 100%;
}

.section__header {
  text-align: center;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

.section__tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: 1rem;
}

.section__title {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.section__desc {
  margin-top: 1rem;
  color: var(--text-secondary);
  font-size: 1rem;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

/* ---- 3D Showcase ---- */
.section--showcase {
  position: relative;
}

.showcase {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 2rem;
  align-items: center;
}

.showcase__canvas-wrap {
  position: relative;
  height: clamp(360px, 50vh, 480px);
  border-radius: var(--radius-xl);
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  overflow: hidden;
  backdrop-filter: blur(var(--blur));
}

#showcase-3d {
  width: 100%;
  height: 100%;
  display: block;
}

.showcase__glow {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 60%, rgba(var(--accent-rgb), 0.15) 0%, transparent 60%);
  pointer-events: none;
}

.showcase__label {
  position: absolute;
  bottom: 1.25rem;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  padding: 0.35rem 1rem;
  background: rgba(0, 0, 0, 0.5);
  border-radius: 100px;
  border: 1px solid var(--border-glass);
  transition: opacity 0.3s, transform 0.3s;
}

.showcase__controls {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.showcase__btn {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.25rem;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  text-align: left;
  transition: all 0.3s;
  backdrop-filter: blur(12px);
}

.showcase__btn:hover {
  border-color: var(--border-hover);
  color: var(--text-primary);
  transform: translateX(4px);
}

.showcase__btn--active {
  border-color: var(--accent);
  color: var(--text-primary);
  background: rgba(var(--accent-rgb), 0.1);
  box-shadow: 0 0 24px rgba(var(--accent-rgb), 0.15);
}

.showcase__btn-icon {
  font-size: 1.25rem;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(var(--accent-rgb), 0.15);
  border-radius: var(--radius-sm);
  color: var(--accent);
}

/* ---- Bento Grid ---- */
.bento {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.bento__card {
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  backdrop-filter: blur(var(--blur));
  -webkit-backdrop-filter: blur(var(--blur));
  transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s;
  overflow: hidden;
  position: relative;
  transform-style: preserve-3d;
  will-change: transform;
}

.bento__card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(600px circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(var(--accent-rgb), 0.08), transparent 40%);
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
}

.bento__card:not([data-tilt]):hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.bento__card[data-tilt]:hover {
  border-color: var(--border-hover);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.bento__card:hover::before { opacity: 1; }

.bento__card--large {
  grid-column: span 2;
  grid-row: span 2;
}

.bento__card--wide {
  grid-column: span 2;
}

.bento__icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(var(--accent-rgb), 0.15);
  border-radius: var(--radius-sm);
  margin-bottom: 1.25rem;
  color: var(--accent);
}

.bento__icon svg {
  width: 22px;
  height: 22px;
}

.bento__icon--spin svg {
  animation: icon-float calc(3s / var(--anim-speed)) ease-in-out infinite;
}

@keyframes icon-float {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-4px) rotate(5deg); }
}

.bento__card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.bento__card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.bento__visual--layers {
  margin-top: 1.5rem;
  height: 120px;
  position: relative;
  perspective: 600px;
}

.layer {
  position: absolute;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-glass);
  transition: transform 0.4s ease;
}

.layer--1 {
  inset: 0 20% 30% 0;
  background: linear-gradient(135deg, rgba(var(--accent-rgb), 0.3), transparent);
}

.layer--2 {
  inset: 15% 10% 15% 10%;
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.2), transparent);
}

.layer--3 {
  inset: 30% 0 0 20%;
  background: linear-gradient(135deg, rgba(168, 85, 247, 0.2), transparent);
}

.layer--4 {
  inset: 5% 5% 5% 5%;
  background: linear-gradient(135deg, rgba(244, 114, 182, 0.15), transparent);
  animation: layer-pulse calc(3s / var(--anim-speed)) ease-in-out infinite;
}

@keyframes layer-pulse {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

.bento__card--large:hover .layer--1 { transform: translateZ(30px) rotateX(5deg); }
.bento__card--large:hover .layer--2 { transform: translateZ(60px) rotateX(5deg); }
.bento__card--large:hover .layer--3 { transform: translateZ(90px) rotateX(5deg); }
.bento__card--large:hover .layer--4 { transform: translateZ(120px) rotateX(5deg); }

.progress-bars {
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.progress-bar {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.progress-bar span { min-width: 100px; }

.progress-bar__track {
  flex: 1;
  height: 6px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 100px;
  overflow: hidden;
}

.progress-bar__fill {
  height: 100%;
  width: var(--w);
  background: linear-gradient(90deg, var(--accent), var(--accent-secondary));
  border-radius: 100px;
  transform-origin: left;
  animation: fill-bar 1.2s ease forwards;
}

@keyframes fill-bar {
  from { transform: scaleX(0); }
  to { transform: scaleX(1); }
}

/* ---- Tech Grid ---- */
.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
}

.tech-item {
  padding: 1.5rem;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  backdrop-filter: blur(12px);
  transition: border-color 0.3s, transform 0.2s;
  position: relative;
  overflow: hidden;
}

.tech-item::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: conic-gradient(from var(--angle, 0deg), transparent, var(--accent), transparent 30%);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.3s;
}

.tech-item:hover::before {
  opacity: 1;
  animation: border-spin calc(3s / var(--anim-speed)) linear infinite;
}

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

@keyframes border-spin {
  to { --angle: 360deg; }
}

.tech-item:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.tech-item code {
  display: block;
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.tech-item span {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* ---- Demo Panel ---- */
.demo-panel {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 2rem;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-xl);
  padding: 2rem;
  backdrop-filter: blur(var(--blur));
}

.demo-panel__controls {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.control {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.control input[type="color"] {
  width: 100%;
  height: 44px;
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
  background: transparent;
  cursor: pointer;
}

.control input[type="range"] {
  -webkit-appearance: none;
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 100px;
  outline: none;
}

.control input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  background: var(--accent);
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 0 12px var(--accent-glow);
}

.demo-panel__preview {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 280px;
}

.preview-card {
  width: 100%;
  max-width: 360px;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: filter 0.3s;
}

.preview-card__header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid var(--border-glass);
}

.preview-dots {
  display: flex;
  gap: 5px;
}

.preview-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
}

.preview-dots span:first-child { background: #ef4444; }
.preview-dots span:nth-child(2) { background: #eab308; }
.preview-dots span:nth-child(3) { background: #22c55e; }

.preview-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.preview-card__body {
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.preview-block {
  height: 40px;
  background: rgba(var(--accent-rgb), 0.2);
  border-radius: var(--radius-sm);
  transition: background 0.3s;
}

.preview-block--hero {
  height: 80px;
  background: linear-gradient(135deg, rgba(var(--accent-rgb), 0.4), rgba(6, 182, 212, 0.2));
}

.preview-blocks {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
}

/* ---- CTA ---- */
.section--cta {
  padding-bottom: var(--section-gap);
}

.cta-card {
  text-align: center;
  padding: clamp(2.5rem, 6vw, 4rem);
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-xl);
  backdrop-filter: blur(var(--blur));
  position: relative;
  overflow: hidden;
}

.cta-card::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: conic-gradient(from 0deg, transparent, rgba(var(--accent-rgb), 0.05), transparent 25%);
  animation: cta-spin calc(10s / var(--anim-speed)) linear infinite;
  pointer-events: none;
}

@keyframes cta-spin {
  to { transform: rotate(360deg); }
}

.cta-card h2,
.cta-card > p,
.cta-form,
.cta-form__status {
  position: relative;
  z-index: 1;
}

.cta-card h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1rem;
}

.cta-card > p {
  color: var(--text-secondary);
  max-width: 480px;
  margin: 0 auto 2rem;
}

.cta-form {
  display: flex;
  gap: 0.75rem;
  max-width: 440px;
  margin: 0 auto;
  flex-wrap: wrap;
  justify-content: center;
}

.cta-form input[type="email"] {
  flex: 1;
  min-width: 200px;
  padding: 0.875rem 1.25rem;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s;
}

.cta-form input[type="email"]:focus {
  border-color: var(--accent);
}

.cta-form__status {
  margin-top: 1rem;
  font-size: 0.9rem;
  color: #22c55e;
  min-height: 1.4em;
}

/* ---- Footer ---- */
.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  padding: 2rem clamp(1.5rem, 4vw, 3rem);
  border-top: 1px solid var(--border-glass);
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer__links {
  display: flex;
  gap: 1.5rem;
}

.footer__links a {
  transition: color 0.2s;
}

.footer__links a:hover {
  color: var(--text-primary);
}

/* ---- Reveal Animations ---- */
[data-reveal] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
  transition-delay: calc(var(--delay, 0) * 0.1s);
}

[data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}

[data-reveal-scale] {
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-reveal-scale].revealed {
  opacity: 1;
  transform: scale(1);
}

/* ---- Responsive ---- */
@media (max-width: 900px) {
  .hero__grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero__content {
    text-align: center;
  }

  .hero__actions {
    justify-content: center;
  }

  .hero__stats {
    justify-content: center;
  }

  .stat {
    align-items: center;
  }

  .hero__visual {
    order: -1;
    width: 100%;
    height: auto;
    min-height: 0;
    margin-bottom: 0.5rem;
  }

  .hero__3d-wrap {
    min-height: clamp(220px, 55vw, 320px);
    aspect-ratio: 4 / 3;
    height: auto;
  }

  .hero__float-card {
    font-size: 0.7rem;
    padding: 0.4rem 0.85rem;
  }

  .hero__float-card--1 { right: 0.5rem; top: 0.75rem; }
  .hero__float-card--2 { left: 0.5rem; bottom: 0.75rem; }

  .showcase {
    grid-template-columns: 1fr;
  }

  .showcase__controls {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .showcase__btn {
    flex: 1 1 calc(50% - 0.5rem);
  }

  .bento {
    grid-template-columns: 1fr 1fr;
  }

  .bento__card--large {
    grid-column: span 2;
    grid-row: span 1;
  }

  .bento__card--wide {
    grid-column: span 2;
  }

  .demo-panel {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .hero {
    min-height: auto;
    padding-top: calc(var(--header-h) + env(safe-area-inset-top, 0px) + 1rem);
    padding-bottom: 2rem;
  }

  .hero__grid {
    gap: 1.25rem;
  }

  .hero__visual {
    margin-bottom: 0;
  }

  .hero__3d-wrap {
    min-height: 240px;
    aspect-ratio: 1 / 1;
    max-height: 72vw;
  }

  .hero__float-card {
    display: none;
  }

  .marquee {
    margin-top: 2rem;
  }

  .hero__orbit--3 {
    display: none;
  }

  .liquid-glass--panel {
    padding: 1.25rem;
  }

  .hero__stats {
    gap: 0.75rem;
  }

  .stat.liquid-glass {
    flex: 1 1 calc(33% - 0.5rem);
    min-width: 0;
    padding: 0.75rem 0.5rem;
  }

  .stat__value {
    font-size: 1.5rem;
  }

  .nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    padding: 1rem;
    background: rgba(3, 0, 20, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-glass);
    transform: translateY(-120%);
    opacity: 0;
    transition: transform 0.3s, opacity 0.3s;
    pointer-events: none;
  }

  .nav--open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav__link {
    width: 100%;
    text-align: center;
    padding: 0.75rem;
  }

  .nav__link--cta {
    margin-left: 0;
    margin-top: 0.5rem;
  }

  .menu-toggle {
    display: flex;
  }

  .bento {
    grid-template-columns: 1fr;
  }

  .bento__card--large,
  .bento__card--wide {
    grid-column: span 1;
  }

  .footer {
    flex-direction: column;
    text-align: center;
  }
}