/* ==========================================================================
   PLUS CHRONOMTER — LAYOUT & STRUCTURAL STYLES
   ========================================================================== */

/* Page Wrapper */
.site-wrapper {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Container — Expansive High-Impact Layout (1720px) */
.container {
  width: 100%;
  max-width: 1720px;
  margin: 0 auto;
  padding: 0 32px;
}

.container-wide {
  width: 100%;
  max-width: 1720px;
  margin: 0 auto;
  padding: 0 32px;
}

/* --------------------------------------------------------------------------
   Top Industrial Telemetry HUD Bar
   -------------------------------------------------------------------------- */
.top-hud-bar {
  background: rgba(3, 7, 18, 0.9);
  border-bottom: 1px solid var(--border-subtle);
  padding: 6px 24px;
  font-size: 0.78rem;
  font-family: var(--font-mono);
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
  z-index: 100;
  backdrop-filter: blur(8px);
  transition: background-color var(--transition-normal);
}

[data-theme="light"] .top-hud-bar {
  background: rgba(255, 255, 255, 0.92);
  border-bottom-color: rgba(15, 23, 42, 0.08);
}

.hud-telemetry-strip {
  display: flex;
  align-items: center;
  gap: 20px;
  overflow-x: auto;
  white-space: nowrap;
}

.hud-ticker-item {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-secondary);
}

.hud-ticker-item strong {
  color: var(--text-white);
  font-weight: 600;
}

.hud-pulse-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--color-status-active);
  box-shadow: 0 0 10px var(--color-status-active);
  animation: pulseGlow 1.8s infinite ease-in-out;
}

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

.hud-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.hud-btn {
  background: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  padding: 2px 10px;
  border-radius: var(--radius-xs);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition-fast);
}

.hud-btn:hover {
  color: var(--color-laser-cyan);
  border-color: var(--color-laser-cyan);
  background: var(--color-laser-cyan-dim);
}

/* --------------------------------------------------------------------------
   Main Navigation
   -------------------------------------------------------------------------- */
.main-header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: rgba(7, 13, 29, 0.85);
  backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--border-subtle);
  transition: var(--transition-normal);
}

[data-theme="light"] .main-header {
  background: rgba(255, 255, 255, 0.88);
  border-bottom-color: rgba(15, 23, 42, 0.08);
}

.main-header.scrolled {
  background: rgba(3, 7, 18, 0.95);
  border-bottom-color: var(--border-cyan);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.7);
}

[data-theme="light"] .main-header.scrolled {
  background: rgba(255, 255, 255, 0.98);
  border-bottom-color: rgba(8, 52, 172, 0.2);
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  color: var(--text-white);
}

.brand-logo-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--color-brand-blue) 0%, #1e40af 100%);
  border: 1px solid var(--border-cyan);
  box-shadow: 0 0 15px rgba(8, 52, 172, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #00f0ff;
  font-weight: 800;
  font-size: 1.3rem;
  font-family: var(--font-display);
}

[data-theme="light"] .brand-logo-icon {
  color: #ffffff;
  box-shadow: 0 4px 15px rgba(8, 52, 172, 0.35);
}

.brand-name {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  color: var(--text-white);
}

.brand-title span {
  color: var(--color-brand-blue-light);
}

[data-theme="dark"] .brand-title span {
  color: var(--color-laser-cyan);
}

.brand-subtitle {
  font-size: 0.7rem;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav-menu {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 32px;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 6px;
  position: relative;
  padding: 6px 0;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: linear-gradient(90deg, var(--color-brand-blue), var(--color-laser-cyan));
  transition: width 0.25s ease;
}

.nav-link:hover {
  color: var(--color-brand-blue);
}

[data-theme="dark"] .nav-link:hover {
  color: var(--text-white);
}

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

.nav-cta-group {
  display: flex;
  align-items: center;
  gap: 14px;
}

.mobile-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--text-white);
  padding: 8px;
  border-radius: var(--radius-xs);
  cursor: pointer;
}

/* --------------------------------------------------------------------------
   Hero Section
   -------------------------------------------------------------------------- */
.hero-section {
  position: relative;
  padding: 90px 0 110px;
  overflow: hidden;
  background: radial-gradient(circle at 50% 20%, rgba(8, 52, 172, 0.18) 0%, rgba(3, 7, 18, 0) 70%);
  transition: background var(--transition-normal);
}

[data-theme="light"] .hero-section {
  background: radial-gradient(circle at 50% 20%, rgba(8, 52, 172, 0.08) 0%, rgba(248, 250, 252, 0) 70%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 56px;
  align-items: center;
}

.hero-badge-live {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 16px;
  background: rgba(8, 52, 172, 0.06);
  border: 1px solid var(--border-cyan);
  border-radius: var(--radius-pill);
  font-size: 0.82rem;
  font-family: var(--font-mono);
  color: var(--color-brand-blue);
  margin-bottom: 24px;
  box-shadow: 0 2px 10px rgba(8, 52, 172, 0.1);
}

[data-theme="dark"] .hero-badge-live {
  background: rgba(0, 240, 255, 0.08);
  color: var(--color-laser-cyan);
  box-shadow: 0 0 20px rgba(0, 240, 255, 0.15);
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4.4rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: var(--text-white);
  margin-bottom: 24px;
}

.hero-title-highlight {
  background: linear-gradient(135deg, var(--color-brand-blue) 20%, var(--color-laser-cyan) 80%, #1d4ed8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

[data-theme="dark"] .hero-title-highlight {
  background: linear-gradient(135deg, #ffffff 30%, var(--color-laser-cyan) 80%, #60a5fa 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-description {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 720px;
  margin-bottom: 38px;
  line-height: 1.7;
}

.hero-cta-bar {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.hero-stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  padding-top: 32px;
  border-top: 1px solid var(--border-subtle);
}

.hero-stat-card {
  display: flex;
  flex-direction: column;
}

.hero-stat-num {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--text-white);
  line-height: 1.1;
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.hero-stat-num span {
  color: var(--color-brand-blue);
  font-size: 1.4rem;
}

[data-theme="dark"] .hero-stat-num span {
  color: var(--color-laser-cyan);
}

.hero-stat-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* Hero Showcase Visual */
.hero-visual-wrapper {
  position: relative;
}

.hero-preview-card {
  position: relative;
  background: var(--bg-surface);
  border: 1px solid var(--border-cyan);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg), var(--shadow-glow-blue);
  transform: perspective(1000px) rotateY(-4deg) rotateX(3deg);
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.hero-preview-card:hover {
  transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
}

.hero-preview-card img {
  width: 100%;
  height: auto;
  display: block;
}

.hero-floating-hud {
  position: absolute;
  backdrop-filter: var(--glass-blur);
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(8, 52, 172, 0.25);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  box-shadow: 0 12px 32px rgba(15, 23, 42, 0.12), 0 2px 8px rgba(8, 52, 172, 0.08);
  display: flex;
  align-items: center;
  gap: 14px;
  z-index: 10;
  animation: floatHUD 4s ease-in-out infinite alternate;
}

[data-theme="dark"] .hero-floating-hud {
  background: rgba(7, 13, 29, 0.85);
  border-color: var(--border-cyan);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), var(--shadow-glow-cyan);
}

.hero-hud-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 2px;
}

.hero-hud-label.laser-label {
  color: var(--color-brand-blue);
}

[data-theme="dark"] .hero-hud-label.laser-label {
  color: var(--color-laser-cyan);
}

.hero-hud-label.nesting-label {
  color: #047857;
}

[data-theme="dark"] .hero-hud-label.nesting-label {
  color: var(--color-status-active);
}

.hero-hud-value {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text-white);
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.hero-hud-icon {
  font-size: 1.25rem;
  color: #047857;
}

[data-theme="dark"] .hero-hud-icon {
  color: var(--color-status-active);
}

.hero-floating-hud.bottom-left {
  bottom: -25px;
  left: -20px;
}

.hero-floating-hud.top-right {
  top: -20px;
  right: -20px;
  animation-delay: -2s;
}

@keyframes floatHUD {
  0% { transform: translateY(0px); }
  100% { transform: translateY(-10px); }
}

/* --------------------------------------------------------------------------
   Section Layouts
   -------------------------------------------------------------------------- */
.section {
  padding: 100px 0;
  position: relative;
  overflow: hidden;
}

.section-header {
  text-align: center;
  max-width: 920px;
  margin: 0 auto 60px;
}

.section-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-brand-blue);
  margin-bottom: 12px;
}

[data-theme="dark"] .section-tag {
  color: var(--color-laser-cyan);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.8vw, 3.2rem);
  font-weight: 700;
  color: var(--text-white);
  line-height: 1.15;
  margin-bottom: 18px;
}

.section-description {
  font-size: 1.08rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Grid Systems */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.site-footer {
  background: #f1f5f9;
  border-top: 1px solid var(--border-subtle);
  padding: 80px 0 30px;
  position: relative;
  z-index: 10;
  transition: background-color var(--transition-normal);
}

[data-theme="dark"] .site-footer {
  background: #020409;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 48px;
  margin-bottom: 60px;
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  margin-top: 16px;
  line-height: 1.7;
}

.footer-col h4 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  color: var(--text-white);
  margin-bottom: 20px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.92rem;
  transition: var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-brand-blue);
  padding-left: 4px;
}

.footer-bottom {
  padding-top: 30px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-socials {
  display: flex;
  gap: 16px;
}

.footer-social-link {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: rgba(15, 23, 42, 0.05);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition-fast);
}

[data-theme="dark"] .footer-social-link {
  background: rgba(255, 255, 255, 0.05);
}

.footer-social-link:hover {
  color: var(--color-brand-blue);
  border-color: var(--color-brand-blue);
  background: var(--color-laser-cyan-dim);
}

/* --------------------------------------------------------------------------
   Responsive Media Queries
   -------------------------------------------------------------------------- */
@media (max-width: 1100px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .container, .container-wide {
    padding: 0 16px;
  }
  .top-hud-bar {
    display: none;
  }
  .nav-menu {
    display: none;
  }
  .mobile-toggle {
    display: block;
  }
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }
  .hero-stats-row {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .footer-top {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
  .hero-preview-card {
    transform: none;
  }
  .hero-floating-hud {
    display: none;
  }
}

/* ==========================================================================
   BOOM & BLOOM DESIGN INSPIRATION — AMBIENT ARCHITECTURE & PHYSICS
   ========================================================================== */

/* Full-Screen 3D WebGL Background Canvas (Boom & Bloom Inspiration) */
#webgl-3d-canvas,
#blooming-bg-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
  display: block;
}

/* Architectural 4-Column Guide Grid */
.architectural-grid-lines {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  display: flex;
  justify-content: space-between;
  pointer-events: none;
  z-index: 1;
}

.architectural-grid-col {
  flex: 0 0 25%;
  height: 100%;
  border-right: 1px solid var(--grid-line);
  position: relative;
  transition: border-color var(--transition-normal);
}

.architectural-grid-col:last-child {
  border-right: none;
}

[data-theme="light"] .architectural-grid-col {
  border-right-color: rgba(8, 52, 172, 0.05);
}

@media (max-width: 768px) {
  .architectural-grid-col {
    flex: 0 0 50%;
  }
  .architectural-grid-col:nth-child(2) {
    border-right: none;
  }
  .architectural-grid-col:nth-child(3),
  .architectural-grid-col:nth-child(4) {
    display: none;
  }
}

/* Rotated Vertical Exploration Indicator (Boom & Bloom style) */
.scroll-explore-indicator {
  position: fixed;
  bottom: 60px;
  left: 28px;
  transform-origin: 0% 50%;
  transform: rotate(-90deg);
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 70;
  pointer-events: none;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-muted);
  transition: var(--transition-normal);
}

.scroll-explore-indicator .dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background-color: var(--color-laser-cyan);
  box-shadow: 0 0 8px var(--color-laser-cyan);
  animation: pulseGlow 2s infinite ease-in-out;
}

[data-theme="light"] .scroll-explore-indicator {
  color: var(--text-secondary);
}

[data-theme="light"] .scroll-explore-indicator .dot {
  background-color: var(--color-brand-blue);
  box-shadow: 0 0 8px rgba(8, 52, 172, 0.4);
}

@media (max-width: 991px) {
  .scroll-explore-indicator {
    display: none;
  }
}

/* Giant Stroke Typography Background Marquee / Watermarks */
.section-stroke-watermark {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
  text-align: center;
  pointer-events: none;
  user-select: none;
  z-index: 0;
  overflow: hidden;
}

.stroke-text {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(4.5rem, 13vw, 14rem);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: -0.02em;
  white-space: nowrap;
  -webkit-text-stroke: 1.5px rgba(0, 240, 255, 0.12);
  color: transparent;
  opacity: 0.22;
  transform: translateY(0);
  transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1), opacity var(--transition-normal);
}

[data-theme="light"] .stroke-text {
  -webkit-text-stroke: 1.5px rgba(8, 52, 172, 0.18);
  opacity: 0.32;
}

/* HoverWord Kinetic Dual-Layer Text Roll (Boom & Bloom Signature Interaction) */
.hover-word {
  position: relative;
  display: inline-flex;
  flex-direction: column;
  overflow: hidden;
  line-height: 1.25;
  vertical-align: middle;
}

.hover-word-label-1,
.hover-word-label-2 {
  display: inline-block;
  white-space: nowrap;
  transition: transform 0.38s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.38s ease;
}

.hover-word-label-2 {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  transform: translateY(120%);
  color: var(--color-laser-cyan);
}

[data-theme="light"] .hover-word-label-2 {
  color: var(--color-brand-blue-light);
}

/* Trigger roll when parent link or button is hovered */
a:hover > .hover-word .hover-word-label-1,
button:hover > .hover-word .hover-word-label-1,
a:hover .hover-word .hover-word-label-1,
button:hover .hover-word .hover-word-label-1 {
  transform: translateY(-120%);
}

a:hover > .hover-word .hover-word-label-2,
button:hover > .hover-word .hover-word-label-2,
a:hover .hover-word .hover-word-label-2,
button:hover .hover-word .hover-word-label-2 {
  transform: translateY(0);
}

/* ==========================================================================
   FLOATING BACK-TO-TOP BUTTON WITH PROGRESS RING HUD
   ========================================================================== */
.back-to-top-hud {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  border: 1px solid rgba(8, 52, 172, 0.25);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  cursor: pointer;
  z-index: 950;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.12), 0 2px 6px rgba(8, 52, 172, 0.08);
  opacity: 0;
  pointer-events: none;
  transform: translateY(16px) scale(0.92);
  transition: opacity 0.3s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.3s cubic-bezier(0.16, 1, 0.3, 1),
              border-color 0.2s ease,
              box-shadow 0.2s ease,
              background-color 0.2s ease;
}

.back-to-top-hud.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0) scale(1);
}

.back-to-top-hud:hover {
  transform: translateY(-4px) scale(1.06);
  border-color: var(--color-brand-blue);
  box-shadow: 0 12px 28px rgba(8, 52, 172, 0.22);
}

[data-theme="dark"] .back-to-top-hud {
  background: rgba(7, 13, 29, 0.88);
  border-color: var(--border-cyan);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.6);
}

[data-theme="dark"] .back-to-top-hud:hover {
  border-color: var(--color-laser-cyan);
  box-shadow: 0 0 24px var(--shadow-glow-cyan), 0 10px 30px rgba(0, 0, 0, 0.7);
}

.scroll-progress-ring {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
  pointer-events: none;
}

.progress-ring-bg {
  fill: none;
  stroke: rgba(8, 52, 172, 0.12);
  stroke-width: 2.5;
}

[data-theme="dark"] .progress-ring-bg {
  stroke: rgba(0, 240, 255, 0.12);
}

.progress-ring-fill {
  fill: none;
  stroke: var(--color-brand-blue);
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-dasharray: 138.23;
  stroke-dashoffset: 138.23;
  transition: stroke-dashoffset 0.1s ease-out;
}

[data-theme="dark"] .progress-ring-fill {
  stroke: var(--color-laser-cyan);
}

.back-to-top-inner {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-brand-blue);
  font-size: 1.05rem;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), color 0.2s ease;
}

[data-theme="dark"] .back-to-top-inner {
  color: var(--color-laser-cyan);
}

.back-to-top-hud:hover .back-to-top-inner {
  transform: translateY(-2px);
}

@media (max-width: 768px) {
  .back-to-top-hud {
    bottom: 20px;
    right: 20px;
    width: 44px;
    height: 44px;
  }
}