/* ==========================================================================
   AURORA WEB — MASTER CSS FOUNDATION
   HERO v1.0 (WITH FINAL SIGNATURE REFINEMENT), SECTION 02 AURORA (R1), SECTION 03 EXPERIENCE (R7), SECTION 04 TECHNOLOGY (R1), SECTION 05 VISION (R1), SECTION 06 CONTACT & FOOTER (v1 POLISHED)
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. DESIGN TOKENS & RESET
   -------------------------------------------------------------------------- */
:root {
  /* Color System — Pure Black & Silver Identity */
  --color-bg-pure: #000000;
  --color-bg-surface: #040406;
  
  --color-text-primary: #ffffff;
  --color-text-silver: #b8b8c2;
  --color-text-nav: rgba(255, 255, 255, 0.60);
  --color-text-stay-tuned: rgba(255, 255, 255, 0.50);
  --color-text-muted: #686875;
  --color-text-dim: #3a3a45;

  /* Typography */
  --font-family-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-family-code: 'Space Grotesk', monospace;

  /* Timing & Motion */
  --ease-cinematic: cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  font-size: 16px;
  background-color: var(--color-bg-pure);
  color: var(--color-text-primary);
  font-family: var(--font-family-main);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  min-height: 100vh;
  background-color: var(--color-bg-pure);
  color: var(--color-text-primary);
  line-height: 1.5;
  overflow-x: hidden;
  position: relative;
}

/* Accessibility Utility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* --------------------------------------------------------------------------
   2. MINIMAL AMBIENT NAVIGATION (FROZEN REFERENCE v1.0)
   -------------------------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  padding: 2.2rem 3rem;
  display: flex;
  justify-content: center;
  align-items: center;
  pointer-events: none; /* Interaction on links only */
  opacity: 0;
  transform: translateY(-10px);
  transition: opacity 1.2s var(--ease-cinematic), transform 1.2s var(--ease-cinematic), background 0.4s ease, border-color 0.4s ease;
}

body.is-loaded .site-header {
  opacity: 1;
  transform: translateY(0);
}

.main-nav {
  pointer-events: auto;
}

.nav-list {
  display: flex;
  gap: 3.2rem;
  list-style: none;
  align-items: center;
}

.nav-link {
  color: var(--color-text-nav);
  text-decoration: none;
  font-family: var(--font-family-code);
  font-size: 0.78rem;
  font-weight: 400;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  transition: color 0.4s ease, opacity 0.4s ease;
  position: relative;
  padding: 0.4rem 0;
}

.nav-link:hover,
.nav-link:focus-visible {
  color: var(--color-text-primary);
  outline: none;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 1px;
  background: var(--color-text-primary);
  transition: width 0.3s var(--ease-cinematic), left 0.3s var(--ease-cinematic);
  opacity: 0.7;
}

.nav-link:hover::after,
.nav-link:focus-visible::after {
  width: 100%;
  left: 0;
}

/* Ambient Atmosphere Audio Control */
.header-atmosphere-wrap {
  position: absolute;
  right: 3rem;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: auto;
  display: flex;
  align-items: center;
}

.atmosphere-control {
  background: transparent;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.4rem 0.6rem;
  font-family: var(--font-family-code);
  font-size: 0.78rem;
  font-weight: 400;
  letter-spacing: 0.28em;
  color: var(--color-text-nav);
  text-transform: uppercase;
  transition: color 0.4s ease, opacity 0.4s ease;
  user-select: none;
}

.atmosphere-control:hover,
.atmosphere-control:focus-visible {
  color: var(--color-text-primary);
  outline: none;
}

.atmosphere-control:focus-visible {
  outline: 1px solid rgba(255, 255, 255, 0.6);
  outline-offset: 3px;
  border-radius: 2px;
}

.atmosphere-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.5);
  background: transparent;
  display: inline-block;
  transition: border-color 0.4s ease, background 0.4s ease, box-shadow 0.4s ease;
}

.atmosphere-control[aria-pressed="true"] {
  color: rgba(255, 255, 255, 0.95);
}

.atmosphere-control[aria-pressed="true"] .atmosphere-dot {
  border-color: transparent;
  background: linear-gradient(135deg, #38cdf0 0%, #2b7fff 38%, #9d42f5 72%, #e042f5 100%);
  box-shadow: 0 0 6px rgba(56, 205, 240, 0.4);
}

/* --------------------------------------------------------------------------
   3. HERO SECTION & PURE BLACK ENVIRONMENT (FROZEN REFERENCE v1.0)
   -------------------------------------------------------------------------- */
.hero-section {
  position: relative;
  min-height: 100vh;
  width: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background-color: var(--color-bg-pure);
  padding: 5rem 2rem 3rem;
  overflow: hidden;
}

/* Hero Container (Elevated Optical Center) */
.hero-container {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
  max-width: 1200px;
  margin: -3vh auto 0;
  text-align: center;
}

/* Hero Brand Lockup Wrapper */
.hero-lockup {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
}

/* --------------------------------------------------------------------------
   4. NATIVE WEB SVG PRECISION ARC (FROZEN REFERENCE v1.0)
   -------------------------------------------------------------------------- */
.hero-arc-container {
  width: 90%;
  max-width: 780px; /* Corresponds to the width of the AURORA wordmark */
  margin-bottom: -0.7rem; /* Deliberate small vertical air gap above AURORA carets */
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 1.8s var(--ease-cinematic) 0.1s, transform 1.8s var(--ease-cinematic) 0.1s;
}

body.is-loaded .hero-arc-container {
  opacity: 1;
  transform: translateY(0);
}

.hero-native-arc-svg {
  width: 100%;
  height: auto;
  display: block;
  overflow: visible;
}

/* --------------------------------------------------------------------------
   5. LOGO AURORA HD (FROZEN REFERENCE v1.0)
   -------------------------------------------------------------------------- */
.hero-logo-wrapper {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  max-width: 860px; /* High visual authority on desktop */
  margin-bottom: 1.6rem;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 1.8s var(--ease-cinematic) 0.3s, transform 1.8s var(--ease-cinematic) 0.3s;
}

body.is-loaded .hero-logo-wrapper {
  opacity: 1;
  transform: translateY(0);
}

.hero-logo-img {
  width: 100%;
  height: auto;
  object-fit: contain;
  display: block;
  transform: translateZ(0); /* Hardware crisp rendering on Retina / 4K / 5K */
}

/* --------------------------------------------------------------------------
   6. BRAND SIGNATURE & STAY TUNED (FROZEN REFERENCE v1.0 WITH FINAL REFINEMENT)
   -------------------------------------------------------------------------- */

/* Conceptual Brand Signature (With Controlled +16px Vertical Separation) */
.hero-signature-block {
  margin-top: 1.2rem;
  margin-bottom: 2.0rem;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 1.6s var(--ease-cinematic) 0.6s, transform 1.6s var(--ease-cinematic) 0.6s;
}

body.is-loaded .hero-signature-block {
  opacity: 1;
  transform: translateY(0);
}

/* Left-to-Right Moving Aurora Spectral Energy Wave (Asynchronous 11s Cycle) */
.signature-line {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.8rem 1.4rem;
  font-family: var(--font-family-code);
  font-size: 0.96rem;
  font-weight: 400;
  letter-spacing: 0.38em;
  text-transform: uppercase;
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0.92) 0%,
    rgba(255, 255, 255, 0.92) 35%,
    #38cdf0 44%,
    #2b7fff 50%,
    #9d42f5 56%,
    #e042f5 62%,
    rgba(255, 255, 255, 0.92) 70%,
    rgba(255, 255, 255, 0.92) 100%
  );
  background-size: 220% 100%;
  background-position: 100% 0;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: sigSpectralSweep 11s infinite linear;
}

@keyframes sigSpectralSweep {
  0% {
    background-position: 100% 0;
  }
  100% {
    background-position: -100% 0;
  }
}

.sig-word {
  letter-spacing: 0.38em;
  white-space: nowrap;
}

.sig-dot {
  font-weight: 300;
  opacity: 0.6;
  user-select: none;
}

/* STAY TUNED */
.hero-stay-tuned {
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 1.6s var(--ease-cinematic) 1s, transform 1.6s var(--ease-cinematic) 1s;
}

body.is-loaded .hero-stay-tuned {
  opacity: 1;
  transform: translateY(0);
}

.stay-tuned-text {
  font-family: var(--font-family-code);
  font-size: 0.78rem;
  font-weight: 400;
  letter-spacing: 0.46em;
  color: var(--color-text-stay-tuned);
  text-transform: uppercase;
  user-select: none;
}

/* Minimal Continuation Indicator Line */
.hero-scroll-indicator {
  position: absolute;
  bottom: -2.8rem;
  left: 50%;
  transform: translateX(-50%);
  opacity: 0;
  transition: opacity 1.6s var(--ease-cinematic) 1.3s;
}

body.is-loaded .hero-scroll-indicator {
  opacity: 1;
}

.scroll-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-decoration: none;
  color: rgba(255, 255, 255, 0.4);
  transition: color 0.4s ease;
}

.scroll-link:hover,
.scroll-link:focus-visible {
  color: #ffffff;
  outline: none;
}

.scroll-line-wrap {
  width: 1px;
  height: 42px;
  background: rgba(255, 255, 255, 0.14);
  position: relative;
  overflow: hidden;
}

.scroll-line {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 50%;
  background: linear-gradient(to bottom, transparent, #ffffff, transparent);
  animation: scrollPulse 2.4s infinite ease-in-out;
}

@keyframes scrollPulse {
  0% {
    transform: translateY(-100%);
  }
  60%, 100% {
    transform: translateY(200%);
  }
}

/* Transition Anchor Target */
.section-transition-anchor {
  height: 1px;
  width: 100%;
}

/* --------------------------------------------------------------------------
   7. HERO RESPONSIVE BREAKPOINTS (FROZEN REFERENCE v1.0)
   -------------------------------------------------------------------------- */

@media (min-width: 1600px) {
  .hero-arc-container {
    max-width: 850px;
    margin-bottom: -0.9rem;
  }
  .hero-logo-wrapper {
    max-width: 940px;
  }
  .hero-signature-block {
    margin-top: 1.4rem;
    margin-bottom: 2.2rem;
  }
  .signature-line {
    font-size: 1.02rem;
    gap: 1rem 1.6rem;
  }
  .stay-tuned-text {
    font-size: 0.82rem;
    letter-spacing: 0.48em;
  }
}

@media (max-width: 1599px) {
  .hero-arc-container {
    max-width: 740px;
  }
  .hero-logo-wrapper {
    max-width: 820px;
  }
}

@media (max-width: 1199px) {
  .hero-arc-container {
    max-width: 610px;
    margin-bottom: -0.6rem;
  }
  .hero-logo-wrapper {
    max-width: 680px;
    margin-bottom: 1.4rem;
  }
  .hero-signature-block {
    margin-top: 1.1rem;
    margin-bottom: 1.8rem;
  }
  .signature-line {
    font-size: 0.88rem;
    letter-spacing: 0.34em;
    gap: 0.7rem 1.2rem;
  }
  .stay-tuned-text {
    font-size: 0.76rem;
    letter-spacing: 0.4em;
  }
}

@media (max-width: 991px) {
  .site-header {
    padding: 1.8rem 2rem;
  }
  .header-atmosphere-wrap {
    right: 2rem;
  }
  .atmosphere-control {
    font-size: 0.72rem;
    letter-spacing: 0.24em;
  }
  .nav-list {
    gap: 2rem;
  }
  .nav-link {
    font-size: 0.72rem;
    letter-spacing: 0.24em;
  }
  .hero-arc-container {
    max-width: 500px;
    margin-bottom: -0.5rem;
  }
  .hero-logo-wrapper {
    max-width: 560px;
    margin-bottom: 1.2rem;
  }
  .hero-signature-block {
    margin-top: 1.0rem;
    margin-bottom: 1.6rem;
  }
  .signature-line {
    font-size: 0.8rem;
    letter-spacing: 0.3em;
    gap: 0.6rem 1rem;
  }
  .stay-tuned-text {
    font-size: 0.72rem;
    letter-spacing: 0.36em;
  }
}

@media (max-width: 767px) {
  .site-header {
    padding: 1.2rem 1rem 0.8rem;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 0.6rem;
  }
  .header-atmosphere-wrap {
    position: relative;
    right: auto;
    top: auto;
    transform: none;
    margin-top: 0.1rem;
    display: flex;
    justify-content: center;
  }
  .atmosphere-control {
    font-size: 0.68rem;
    letter-spacing: 0.22em;
    gap: 0.45rem;
    padding: 0.25rem 0.5rem;
  }
  .nav-list {
    gap: 1.1rem;
    justify-content: center;
  }
  .nav-link {
    font-size: 0.65rem;
    letter-spacing: 0.18em;
  }
  .hero-section {
    padding: 4.5rem 1rem 2.5rem;
  }
  .hero-arc-container {
    max-width: 320px;
    margin-bottom: -0.4rem;
  }
  .hero-logo-wrapper {
    max-width: 360px;
    margin-bottom: 1.2rem;
  }
  .hero-signature-block {
    margin-top: 0.9rem;
    margin-bottom: 1.4rem;
    width: 100%;
    display: flex;
    justify-content: center;
  }
  .signature-line {
    font-size: clamp(0.52rem, 2.4vw, 0.74rem);
    letter-spacing: clamp(0.10em, 1.6vw, 0.24em);
    gap: 0.3rem clamp(0.3rem, 1.2vw, 0.6rem);
    flex-wrap: nowrap;
    white-space: nowrap;
    max-width: 100%;
    width: auto;
  }
  .sig-word {
    letter-spacing: inherit;
    white-space: nowrap;
  }
  .sig-dot {
    display: inline-block;
  }
  .stay-tuned-text {
    font-size: 0.7rem;
    letter-spacing: 0.32em;
  }
}

@media (max-width: 380px) {
  .nav-list {
    gap: 0.7rem;
  }
  .nav-link {
    font-size: 0.58rem;
    letter-spacing: 0.14em;
  }
  .hero-arc-container {
    max-width: 260px;
  }
  .hero-logo-wrapper {
    max-width: 290px;
  }
}

/* --------------------------------------------------------------------------
   8. SECTION 02 — AURORA (PRODUCT VISION v1 R1 PASS)
   -------------------------------------------------------------------------- */
.section-aurora {
  position: relative;
  width: 100%;
  background-color: var(--color-bg-pure);
  padding: 12rem 2rem 14rem;
  overflow: hidden;
  z-index: 10;
}

.section-container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
}

/* Editorial Architectural Layout Grid */
.aurora-grid {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 4rem 5rem;
  align-items: start;
}

/* Left Column: Section Index Meta */
.aurora-meta {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--font-family-code);
  font-size: 0.85rem;
  letter-spacing: 0.34em;
  color: rgba(255, 255, 255, 0.55);
  text-transform: uppercase;
  padding-top: 0.6rem;
  user-select: none;
}

.section-number {
  color: rgba(255, 255, 255, 0.85);
  font-weight: 500;
}

.section-divider {
  opacity: 0.5;
}

.section-label {
  letter-spacing: 0.34em;
}

/* Right Column: Authoritative Editorial Narrative */
.aurora-content {
  display: flex;
  flex-direction: column;
}

/* Major Typographic Headline (Fail-Safe Base: Visible by default) */
.aurora-headline {
  font-family: var(--font-family-main);
  font-size: clamp(2.2rem, 3.8vw, 3.2rem);
  font-weight: 300;
  line-height: 1.28;
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
  margin-bottom: 2.8rem;
  max-width: 900px;
  opacity: 1;
  transform: none;
  transition: opacity 1.4s var(--ease-cinematic) 0.1s, transform 1.4s var(--ease-cinematic) 0.1s;
}

/* Body Narrative Measure (Fail-Safe Base: Visible by default) */
.aurora-body {
  font-family: var(--font-family-main);
  font-size: clamp(1.05rem, 1.6vw, 1.2rem);
  font-weight: 400;
  line-height: 1.78;
  color: var(--color-text-silver);
  max-width: 680px;
  margin-bottom: 3.8rem;
  opacity: 1;
  transform: none;
  transition: opacity 1.4s var(--ease-cinematic) 0.3s, transform 1.4s var(--ease-cinematic) 0.3s;
}

.aurora-body p {
  margin-bottom: 1.8rem;
}

.aurora-body p:last-child {
  margin-bottom: 0;
}

/* Separated Conceptual Line Block (Fail-Safe Base: Visible by default) */
.aurora-conceptual-block {
  position: relative;
  max-width: 680px;
  opacity: 1;
  transform: none;
  transition: opacity 1.4s var(--ease-cinematic) 0.5s, transform 1.4s var(--ease-cinematic) 0.5s;
}

/* Single Refined Aurora Spectral Color Accent Rule (Horizontal Reveal 1.2s) */
.conceptual-accent-line {
  width: 48px;
  height: 1px;
  background: linear-gradient(90deg, #38cdf0 0%, #2b7fff 38%, #9d42f5 72%, #e042f5 100%);
  margin-bottom: 1.6rem;
  transform-origin: left center;
  transition: transform 1.2s var(--ease-cinematic) 0.35s, opacity 1.2s var(--ease-cinematic) 0.35s;
}

.conceptual-line {
  font-family: var(--font-family-code);
  font-size: clamp(0.92rem, 1.4vw, 1.08rem);
  font-weight: 400;
  letter-spacing: 0.18em;
  color: rgba(255, 255, 255, 0.92);
  text-transform: uppercase;
  line-height: 1.6;
}

/* Progressive Reveal Override when initialized by JS Observer */
body.is-loaded .section-aurora:not(.is-in-view) .aurora-headline,
body.is-loaded .section-aurora:not(.is-in-view) .aurora-body,
body.is-loaded .section-aurora:not(.is-in-view) .aurora-conceptual-block {
  opacity: 0;
  transform: translateY(24px);
}

body.is-loaded .section-aurora:not(.is-in-view) .conceptual-accent-line {
  transform: scaleX(0);
  opacity: 0;
}

.section-aurora.is-in-view .aurora-headline,
.section-aurora.is-in-view .aurora-body,
.section-aurora.is-in-view .aurora-conceptual-block {
  opacity: 1;
  transform: translateY(0);
}

.section-aurora.is-in-view .conceptual-accent-line {
  transform: scaleX(1);
  opacity: 1;
}

/* Section 02 Responsive Grid Adaptations */
@media (max-width: 1023px) {
  .section-aurora {
    padding: 8rem 2rem 10rem;
  }
  .aurora-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .aurora-meta {
    padding-top: 0;
  }
  .aurora-headline {
    margin-bottom: 2.2rem;
  }
  .aurora-body {
    margin-bottom: 3rem;
  }
}

@media (max-width: 767px) {
  .section-aurora {
    padding: 6rem 1.2rem 8rem;
  }
  .aurora-headline {
    font-size: 1.85rem;
    line-height: 1.3;
    margin-bottom: 1.8rem;
  }
  .aurora-body {
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 2.5rem;
  }
  .conceptual-line {
    font-size: 0.85rem;
    letter-spacing: 0.14em;
  }
}

/* --------------------------------------------------------------------------
   9. SECTION 03 — EXPERIENCE (PRECISION SIGNAL CHAIN v1 R7 SCALE PASS)
   -------------------------------------------------------------------------- */
.section-experience {
  position: relative;
  width: 100%;
  background-color: var(--color-bg-pure);
  padding: 10rem 2rem 14rem;
  overflow: hidden;
  z-index: 10;
}

/* Architectural Layout Grid */
.experience-grid {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 4rem 5rem;
  align-items: start;
}

/* Left Column: Section Index Meta */
.experience-meta {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--font-family-code);
  font-size: 0.85rem;
  letter-spacing: 0.34em;
  color: rgba(255, 255, 255, 0.55);
  text-transform: uppercase;
  padding-top: 0.6rem;
  user-select: none;
}

/* Right Column Narrative */
.experience-content {
  display: flex;
  flex-direction: column;
}

/* Major Typographic Headline (Fail-Safe Base: Visible by default) */
.experience-headline {
  font-family: var(--font-family-main);
  font-size: clamp(2.2rem, 3.8vw, 3.2rem);
  font-weight: 300;
  line-height: 1.28;
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
  margin-bottom: 2.5rem;
  max-width: 900px;
  opacity: 1;
  transform: none;
  transition: opacity 1.4s var(--ease-cinematic) 0.1s, transform 1.4s var(--ease-cinematic) 0.1s;
}

/* Body Narrative Measure (Fail-Safe Base: Visible by default) */
.experience-body {
  font-family: var(--font-family-main);
  font-size: clamp(1.05rem, 1.6vw, 1.2rem);
  font-weight: 400;
  line-height: 1.78;
  color: var(--color-text-silver);
  max-width: 680px;
  margin-bottom: 3.5rem;
  opacity: 1;
  transform: none;
  transition: opacity 1.4s var(--ease-cinematic) 0.25s, transform 1.4s var(--ease-cinematic) 0.25s;
}

/* Precision Signal Chain Diagram Wrapper (R7 Desktop Footprint: 1140px / +60% Authority Boost) */
.experience-diagram-wrapper {
  margin: 3.5rem 0 5.5rem;
  width: 100%;
  max-width: 1140px;
  opacity: 1;
  transform: none;
  transition: opacity 1.4s var(--ease-cinematic) 0.45s, transform 1.4s var(--ease-cinematic) 0.45s;
}

.diagram-desktop-view {
  width: 100%;
  display: block;
}

.diagram-mobile-view {
  display: none;
}

.schematic-svg {
  width: 100%;
  height: auto;
  display: block;
  overflow: visible;
}

/* SVG Terminal & Stage Text Labels */
.terminal-text {
  font-family: var(--font-family-code);
  font-size: 0.92rem;
  font-weight: 500;
  letter-spacing: 0.24em;
  fill: rgba(255, 255, 255, 0.95);
  text-transform: uppercase;
}

.stage-label {
  font-family: var(--font-family-code);
  font-size: 0.88rem;
  font-weight: 500;
  letter-spacing: 0.30em;
  fill: rgba(255, 255, 255, 0.95);
  text-transform: uppercase;
}

/* R7 Processor Box Styling & Pass-Through Internal Reactions (ZERO Spatial Movement) */
.processor-box {
  stroke: rgba(255, 255, 255, 0.65);
  transition: stroke 0.6s ease;
}

.schematic-node:hover .processor-box {
  stroke: rgba(255, 255, 255, 0.92);
}

.micro-glyph {
  opacity: 0.85;
  transition: opacity 0.6s ease;
}

.r7-analyze-box {
  animation: analyzeBoxIllumination 9s infinite cubic-bezier(0.4, 0, 0.2, 1);
}

.r7-understand-box {
  animation: understandBoxIllumination 9s infinite cubic-bezier(0.4, 0, 0.2, 1);
}

.r7-decide-box {
  animation: decideBoxIllumination 9s infinite cubic-bezier(0.4, 0, 0.2, 1);
}

.r7-apply-box {
  animation: applyBoxIllumination 9s infinite cubic-bezier(0.4, 0, 0.2, 1);
}

.r7-analyze-glyph {
  animation: analyzeGlyphIllumination 9s infinite cubic-bezier(0.4, 0, 0.2, 1);
}

.r7-understand-glyph {
  animation: understandGlyphIllumination 9s infinite cubic-bezier(0.4, 0, 0.2, 1);
}

.r7-decide-glyph {
  animation: decideGlyphIllumination 9s infinite cubic-bezier(0.4, 0, 0.2, 1);
}

.r7-apply-glyph {
  animation: applyGlyphIllumination 9s infinite cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes analyzeBoxIllumination {
  0%, 12%, 36%, 100% { stroke: rgba(255, 255, 255, 0.65); }
  24% { stroke: #38cdf0; }
}

@keyframes understandBoxIllumination {
  0%, 32%, 56%, 100% { stroke: rgba(255, 255, 255, 0.65); }
  44% { stroke: #2b7fff; }
}

@keyframes decideBoxIllumination {
  0%, 52%, 76%, 100% { stroke: rgba(255, 255, 255, 0.65); }
  64% { stroke: #9d42f5; }
}

@keyframes applyBoxIllumination {
  0%, 72%, 96%, 100% { stroke: rgba(255, 255, 255, 0.65); }
  84% { stroke: #e042f5; }
}

@keyframes analyzeGlyphIllumination {
  0%, 12%, 36%, 100% { opacity: 0.82; }
  24% { opacity: 1.0; filter: drop-shadow(0 0 2px rgba(56, 205, 240, 0.6)); }
}

@keyframes understandGlyphIllumination {
  0%, 32%, 56%, 100% { opacity: 0.82; }
  44% { opacity: 1.0; filter: drop-shadow(0 0 2px rgba(43, 127, 255, 0.6)); }
}

@keyframes decideGlyphIllumination {
  0%, 52%, 76%, 100% { opacity: 0.82; }
  64% { opacity: 1.0; filter: drop-shadow(0 0 2px rgba(157, 66, 245, 0.6)); }
}

@keyframes applyGlyphIllumination {
  0%, 72%, 96%, 100% { opacity: 0.82; }
  84% { opacity: 1.0; filter: drop-shadow(0 0 2px rgba(224, 66, 245, 0.6)); }
}

/* Sequence Conclusion Block (Fail-Safe Base: Visible by default) */
.experience-sequence-block {
  position: relative;
  max-width: 680px;
  opacity: 1;
  transform: none;
  transition: opacity 1.4s var(--ease-cinematic) 0.65s, transform 1.4s var(--ease-cinematic) 0.65s;
}

.sequence-accent-line {
  width: 48px;
  height: 1px;
  background: linear-gradient(90deg, #38cdf0 0%, #2b7fff 38%, #9d42f5 72%, #e042f5 100%);
  margin-bottom: 1.8rem;
}

.sequence-list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.sequence-item {
  font-family: var(--font-family-code);
  font-size: clamp(0.98rem, 1.5vw, 1.15rem);
  font-weight: 400;
  letter-spacing: 0.14em;
  color: rgba(255, 255, 255, 0.92);
  line-height: 1.5;
}

/* Progressive Reveal Override when initialized by JS Observer */
body.is-loaded .section-experience:not(.is-in-view) .experience-headline,
body.is-loaded .section-experience:not(.is-in-view) .experience-body,
body.is-loaded .section-experience:not(.is-in-view) .experience-diagram-wrapper,
body.is-loaded .section-experience:not(.is-in-view) .experience-sequence-block {
  opacity: 0;
  transform: translateY(24px);
}

.section-experience.is-in-view .experience-headline,
.section-experience.is-in-view .experience-body,
.section-experience.is-in-view .experience-diagram-wrapper,
.section-experience.is-in-view .experience-sequence-block {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive Grid & Mobile Precision Schematic Chain */
@media (max-width: 1023px) {
  .section-experience {
    padding: 7rem 2rem 9rem;
  }
  .experience-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .experience-meta {
    padding-top: 0;
  }
}

@media (max-width: 767px) {
  .section-experience {
    padding: 5rem 1.2rem 7rem;
  }
  .experience-headline {
    font-size: 1.85rem;
    line-height: 1.3;
    margin-bottom: 1.8rem;
  }
  .experience-body {
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 2.5rem;
  }
  .experience-diagram-wrapper {
    margin: 2rem 0 4rem;
  }
  
  /* Mobile Precision Schematic Chain View (Top -> Bottom, No Cards/Boxes) */
  .diagram-desktop-view {
    display: none;
  }
  .diagram-mobile-view {
    display: block;
    width: 100%;
  }
  
  .mobile-schematic-chain {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0;
    width: 100%;
    max-width: 280px;
    margin: 0 auto;
  }
  
  .mobile-terminal-node {
    padding: 0.5rem 1.4rem;
    border-radius: 4px;
    background: #000000;
    border: 1px solid rgba(255, 255, 255, 0.5);
  }
  
  .m-terminal-txt {
    font-family: var(--font-family-code);
    font-size: 0.82rem;
    letter-spacing: 0.24em;
    color: rgba(255, 255, 255, 0.95);
  }
  
  .mobile-processor-node {
    display: flex;
    align-items: center;
    gap: 1.2rem;
    width: 100%;
    justify-content: flex-start;
  }
  
  .m-processor-box {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    border-radius: 4px;
    background: #000000;
    border: 1px solid rgba(255, 255, 255, 0.6);
  }
  
  .m-processor-label {
    font-family: var(--font-family-code);
    font-size: 0.84rem;
    font-weight: 500;
    letter-spacing: 0.28em;
    color: rgba(255, 255, 255, 0.95);
  }
  
  .mobile-conductor-line {
    width: 1px;
    height: 26px;
    background: rgba(255, 255, 255, 0.3);
    position: relative;
    overflow: hidden;
  }
  
  .m-conductor-pulse {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 50%;
    background: linear-gradient(to bottom, transparent, #38cdf0, transparent);
    animation: scrollPulse 2.2s infinite ease-in-out;
  }

  .sequence-item {
    font-size: 0.88rem;
    letter-spacing: 0.12em;
  }
}

/* --------------------------------------------------------------------------
   10. SECTION 04 — TECHNOLOGY (TECHNOLOGY LANDSCAPE v1 R1 PASS)
   -------------------------------------------------------------------------- */
.section-technology {
  position: relative;
  width: 100%;
  background-color: var(--color-bg-pure);
  padding: 10rem 2rem 14rem;
  overflow: hidden;
  z-index: 10;
}

/* Architectural Layout Grid */
.technology-grid {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 4rem 5rem;
  align-items: start;
}

/* Left Column: Section Index Meta */
.technology-meta {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--font-family-code);
  font-size: 0.85rem;
  letter-spacing: 0.34em;
  color: rgba(255, 255, 255, 0.55);
  text-transform: uppercase;
  padding-top: 0.6rem;
  user-select: none;
}

/* Right Column Narrative */
.technology-content {
  display: flex;
  flex-direction: column;
}

/* Major Typographic Headline (Fail-Safe Base: Visible by default) */
.technology-headline {
  font-family: var(--font-family-main);
  font-size: clamp(2.2rem, 3.8vw, 3.2rem);
  font-weight: 300;
  line-height: 1.28;
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
  margin-bottom: 2.5rem;
  max-width: 900px;
  opacity: 1;
  transform: none;
  transition: opacity 1.4s var(--ease-cinematic) 0.1s, transform 1.4s var(--ease-cinematic) 0.1s;
}

/* Body Narrative Measure (Fail-Safe Base: Visible by default) */
.technology-body {
  font-family: var(--font-family-main);
  font-size: clamp(1.05rem, 1.6vw, 1.2rem);
  font-weight: 400;
  line-height: 1.78;
  color: var(--color-text-silver);
  max-width: 680px;
  margin-bottom: 3.8rem;
  opacity: 1;
  transform: none;
  transition: opacity 1.4s var(--ease-cinematic) 0.25s, transform 1.4s var(--ease-cinematic) 0.25s;
}

.technology-body p {
  margin-bottom: 1.8rem;
}

.technology-body p:last-child {
  margin-bottom: 0;
}

/* Abstract Technology Field Vector Composition (Desktop/Tablet Footprint: 1200px / R1 +22% Scale Boost) */
.technology-field-wrapper {
  margin: 4rem 0 5rem;
  width: 100%;
  max-width: 1200px;
  opacity: 1;
  transform: none;
  transition: opacity 1.4s var(--ease-cinematic) 0.45s, transform 1.4s var(--ease-cinematic) 0.45s;
}

.tech-field-desktop-view {
  width: 100%;
  display: block;
}

.tech-field-mobile-view {
  display: none;
}

.tech-field-svg {
  width: 100%;
  height: auto;
  display: block;
  overflow: visible;
}

.tech-territory-title {
  font-family: var(--font-family-code);
  font-size: 0.90rem;
  font-weight: 500;
  letter-spacing: 0.30em;
  fill: rgba(255, 255, 255, 0.95);
  text-transform: uppercase;
}

.tech-node-circle {
  transition: stroke 0.6s ease;
}

.circle-analysis {
  animation: techNodeGlowAnalysis 12s infinite ease-in-out;
}

.circle-understanding {
  animation: techNodeGlowUnderstanding 12s infinite ease-in-out 3s;
}

.circle-decision {
  animation: techNodeGlowDecision 12s infinite ease-in-out 6s;
}

.circle-processing {
  animation: techNodeGlowProcessing 12s infinite ease-in-out 9s;
}

.tech-quadrant-diamond {
  animation: techQuadrantDiamondBreathe 20s infinite ease-in-out;
}

@keyframes techQuadrantDiamondBreathe {
  0%, 100% { stroke-opacity: 0.16; }
  50% { stroke-opacity: 0.28; }
}

@keyframes techNodeGlowAnalysis {
  0%, 100% { stroke: rgba(255, 255, 255, 0.70); }
  25% { stroke: #38cdf0; }
}

@keyframes techNodeGlowUnderstanding {
  0%, 100% { stroke: rgba(255, 255, 255, 0.70); }
  25% { stroke: #2b7fff; }
}

@keyframes techNodeGlowDecision {
  0%, 100% { stroke: rgba(255, 255, 255, 0.70); }
  25% { stroke: #9d42f5; }
}

@keyframes techNodeGlowProcessing {
  0%, 100% { stroke: rgba(255, 255, 255, 0.70); }
  25% { stroke: #e042f5; }
}

/* Accessible Editorial HTML Presentation of the Four Territories (Fail-Safe Base: Visible) */
.technology-territories-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem 4rem;
  max-width: 1040px;
  margin-top: 1rem;
  opacity: 1;
  transform: none;
  transition: opacity 1.4s var(--ease-cinematic) 0.6s, transform 1.4s var(--ease-cinematic) 0.6s;
}

.territory-card {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.territory-title {
  font-family: var(--font-family-code);
  font-size: 0.88rem;
  font-weight: 500;
  letter-spacing: 0.28em;
  color: var(--color-text-primary);
  text-transform: uppercase;
}

.territory-desc {
  font-family: var(--font-family-main);
  font-size: 0.98rem;
  font-weight: 400;
  line-height: 1.7;
  color: var(--color-text-silver);
}

/* Progressive Reveal Override when initialized by JS Observer */
body.is-loaded .section-technology:not(.is-in-view) .technology-headline,
body.is-loaded .section-technology:not(.is-in-view) .technology-body,
body.is-loaded .section-technology:not(.is-in-view) .technology-field-wrapper,
body.is-loaded .section-technology:not(.is-in-view) .technology-territories-grid {
  opacity: 0;
  transform: translateY(24px);
}

.section-technology.is-in-view .technology-headline,
.section-technology.is-in-view .technology-body,
.section-technology.is-in-view .technology-field-wrapper,
.section-technology.is-in-view .technology-territories-grid {
  opacity: 1;
  transform: translateY(0);
}

/* Section 04 Responsive Grid Adaptations */
@media (max-width: 1023px) {
  .section-technology {
    padding: 7rem 2rem 9rem;
  }
  .technology-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .technology-meta {
    padding-top: 0;
  }
  .technology-territories-grid {
    grid-template-columns: 1fr;
    gap: 2.8rem;
  }
}

@media (max-width: 767px) {
  .section-technology {
    padding: 5rem 1.2rem 7rem;
  }
  .technology-headline {
    font-size: 1.85rem;
    line-height: 1.3;
    margin-bottom: 1.8rem;
  }
  .technology-body {
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 2.5rem;
  }
  .technology-field-wrapper {
    margin: 2rem 0 3.5rem;
  }

  /* Mobile Technology Field Sequence */
  .tech-field-desktop-view {
    display: none;
  }
  .tech-field-mobile-view {
    display: block;
    width: 100%;
  }

  .mobile-tech-sequence {
    display: flex;
    flex-direction: column;
    gap: 0;
    width: 100%;
    max-width: 320px;
    margin: 0 auto;
  }

  .mobile-tech-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.4rem 0;
  }

  .m-tech-anchor {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin-top: 0;
  }

  .m-anchor-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #ffffff;
  }

  .m-tech-info {
    display: flex;
    flex-direction: column;
    gap: 0;
  }

  .m-tech-title {
    font-family: var(--font-family-code);
    font-size: 0.82rem;
    font-weight: 500;
    letter-spacing: 0.24em;
    color: rgba(255, 255, 255, 0.95);
  }

  /* Mobile Technology Field Sequence: Hide description to avoid duplication with detailed cards below */
  .m-tech-desc {
    display: none;
  }

  .m-tech-connector {
    width: 1px;
    height: 18px;
    background: rgba(255, 255, 255, 0.2);
    margin-left: 12px;
  }
}

/* --------------------------------------------------------------------------
   11. SECTION 05 — VISION (EXPANDING CONTEXTUAL PERSPECTIVE FIELD R1 PASS)
   -------------------------------------------------------------------------- */
.section-vision {
  position: relative;
  width: 100%;
  background-color: var(--color-bg-pure);
  padding: 10rem 2rem 16rem;
  overflow: hidden;
  z-index: 10;
}

/* Architectural Layout Grid */
.vision-grid {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 4rem 5rem;
  align-items: start;
}

/* Left Column: Section Index Meta */
.vision-meta {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--font-family-code);
  font-size: 0.85rem;
  letter-spacing: 0.34em;
  color: rgba(255, 255, 255, 0.55);
  text-transform: uppercase;
  padding-top: 0.6rem;
  user-select: none;
}

/* Right Column Narrative */
.vision-content {
  display: flex;
  flex-direction: column;
}

/* Major Typographic Headline (Fail-Safe Base: Visible by default) */
.vision-headline {
  font-family: var(--font-family-main);
  font-size: clamp(2.2rem, 3.8vw, 3.2rem);
  font-weight: 300;
  line-height: 1.28;
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
  margin-bottom: 2.5rem;
  max-width: 900px;
  opacity: 1;
  transform: none;
  transition: opacity 1.4s var(--ease-cinematic) 0.1s, transform 1.4s var(--ease-cinematic) 0.1s;
}

/* Body Narrative Measure (Fail-Safe Base: Visible by default) */
.vision-body {
  font-family: var(--font-family-main);
  font-size: clamp(1.05rem, 1.6vw, 1.2rem);
  font-weight: 400;
  line-height: 1.78;
  color: var(--color-text-silver);
  max-width: 680px;
  margin-bottom: 3.8rem;
  opacity: 1;
  transform: none;
  transition: opacity 1.4s var(--ease-cinematic) 0.25s, transform 1.4s var(--ease-cinematic) 0.25s;
}

.vision-body p {
  margin-bottom: 1.8rem;
}

.vision-body p:last-child {
  margin-bottom: 0;
}

/* Expanding Contextual Perspective Field Diagram Wrapper (1200px Desktop Footprint / R1 +55% Boost) */
.vision-diagram-wrapper {
  margin: 4rem 0 5.5rem;
  width: 100%;
  max-width: 1200px;
  opacity: 1;
  transform: none;
  transition: opacity 1.4s var(--ease-cinematic) 0.45s, transform 1.4s var(--ease-cinematic) 0.45s;
}

.vision-desktop-view {
  width: 100%;
  display: block;
}

.vision-mobile-view {
  display: none;
}

.vision-svg {
  width: 100%;
  height: auto;
  display: block;
  overflow: visible;
}

.vision-ring-mid {
  animation: visionCoreRingMidBreathe 18s infinite ease-in-out;
}

.vision-ring-outer {
  animation: visionCoreRingOuterBreathe 22s infinite ease-in-out;
}

@keyframes visionCoreRingMidBreathe {
  0%, 100% { stroke-opacity: 0.25; }
  50% { stroke-opacity: 0.50; }
}

@keyframes visionCoreRingOuterBreathe {
  0%, 100% { stroke-opacity: 0.18; }
  50% { stroke-opacity: 0.38; }
}

.core-label {
  font-family: var(--font-family-code);
  font-size: 0.76rem;
  font-weight: 500;
  letter-spacing: 0.30em;
  fill: rgba(255, 255, 255, 0.85);
  text-transform: uppercase;
}

.perspective-label {
  font-family: var(--font-family-code);
  font-size: 0.92rem;
  font-weight: 500;
  letter-spacing: 0.28em;
  fill: rgba(255, 255, 255, 0.95);
  text-transform: uppercase;
}

/* ATMOSPHERE Audio Active State: Restrained +12% stroke/luminance presence (Zero duration acceleration) */
body.atmosphere-active .processor-box,
body.atmosphere-active .tech-node-circle,
body.atmosphere-active .vision-perspective-node circle {
  stroke-opacity: 0.88;
  transition: stroke-opacity 1.2s ease;
}

body.atmosphere-active .micro-glyph {
  opacity: 0.95;
}

/* Authoritative Conceptual Closing Statement (Fail-Safe Base: Visible) */
.vision-closing-block {
  position: relative;
  max-width: 920px;
  margin-top: 1rem;
  opacity: 1;
  transform: none;
  transition: opacity 1.4s var(--ease-cinematic) 0.65s, transform 1.4s var(--ease-cinematic) 0.65s;
}

.closing-accent-line {
  width: 48px;
  height: 1px;
  background: linear-gradient(90deg, #38cdf0 0%, #2b7fff 38%, #9d42f5 72%, #e042f5 100%);
  margin-bottom: 1.8rem;
}

.closing-statement {
  font-family: var(--font-family-code);
  font-size: clamp(1.1rem, 1.7vw, 1.3rem);
  font-weight: 400;
  letter-spacing: 0.16em;
  color: var(--color-text-primary);
  line-height: 1.6;
}

/* Progressive Reveal Override when initialized by JS Observer */
body.is-loaded .section-vision:not(.is-in-view) .vision-headline,
body.is-loaded .section-vision:not(.is-in-view) .vision-body,
body.is-loaded .section-vision:not(.is-in-view) .vision-diagram-wrapper,
body.is-loaded .section-vision:not(.is-in-view) .vision-closing-block {
  opacity: 0;
  transform: translateY(24px);
}

.section-vision.is-in-view .vision-headline,
.section-vision.is-in-view .vision-body,
.section-vision.is-in-view .vision-diagram-wrapper,
.section-vision.is-in-view .vision-closing-block {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive Grid & Mobile Adaptation for Section 05 */
@media (max-width: 1023px) {
  .section-vision {
    padding: 7rem 2rem 9rem;
  }
  .vision-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .vision-meta {
    padding-top: 0;
  }
}

@media (max-width: 767px) {
  .section-vision {
    padding: 5rem 1.2rem 7rem;
  }
  .vision-headline {
    font-size: 1.85rem;
    line-height: 1.3;
    margin-bottom: 1.8rem;
  }
  .vision-body {
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 2.5rem;
  }
  .vision-diagram-wrapper {
    margin: 2rem 0 3.5rem;
  }

  /* Mobile Vision Perspective List */
  .vision-desktop-view {
    display: none;
  }
  .vision-mobile-view {
    display: block;
    width: 100%;
  }

  .mobile-perspective-list {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.2rem;
    width: 100%;
    max-width: 320px;
    margin: 0 auto;
    text-align: center;
  }

  .m-perspective-core {
    font-family: var(--font-family-code);
    font-size: 0.88rem;
    font-weight: 500;
    letter-spacing: 0.3em;
    color: #ffffff;
    padding: 0.6rem 1.6rem;
    border: 1px solid rgba(255, 255, 255, 0.4);
    border-radius: 4px;
    background: #000000;
  }

  .m-perspective-connector {
    width: 1px;
    height: 28px;
    background: rgba(255, 255, 255, 0.25);
  }

  .m-perspective-items {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    justify-content: center;
  }

  .m-perspective-tag {
    font-family: var(--font-family-code);
    font-size: 0.78rem;
    letter-spacing: 0.22em;
    color: var(--color-text-silver);
    padding: 0.4rem 0.9rem;
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 3px;
    background: #000000;
  }

  .closing-statement {
    font-size: 0.92rem;
    letter-spacing: 0.12em;
  }
}

/* --------------------------------------------------------------------------
   12. SECTION 06 — CONTACT / STAY TUNED (v1)
   -------------------------------------------------------------------------- */
.section-contact {
  position: relative;
  width: 100%;
  background-color: var(--color-bg-pure);
  padding: 10rem 2rem 14rem;
  overflow: hidden;
  z-index: 10;
}

/* Architectural Layout Grid */
.contact-grid {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 4rem 5rem;
  align-items: start;
}

/* Left Column: Section Index Meta */
.contact-meta {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--font-family-code);
  font-size: 0.85rem;
  letter-spacing: 0.34em;
  color: rgba(255, 255, 255, 0.55);
  text-transform: uppercase;
  padding-top: 0.6rem;
  user-select: none;
}

/* Right Column Narrative */
.contact-content {
  display: flex;
  flex-direction: column;
}

/* Major Typographic Headline (Fail-Safe Base: Visible by default) */
.contact-headline {
  font-family: var(--font-family-main);
  font-size: clamp(2.2rem, 3.8vw, 3.2rem);
  font-weight: 300;
  line-height: 1.28;
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
  margin-bottom: 2.5rem;
  max-width: 900px;
  opacity: 1;
  transform: none;
  transition: opacity 1.4s var(--ease-cinematic) 0.1s, transform 1.4s var(--ease-cinematic) 0.1s;
}

/* Body Narrative Measure (Fail-Safe Base: Visible by default) */
.contact-body {
  font-family: var(--font-family-main);
  font-size: clamp(1.05rem, 1.6vw, 1.2rem);
  font-weight: 400;
  line-height: 1.78;
  color: var(--color-text-silver);
  max-width: 640px;
  margin-bottom: 2.8rem;
  opacity: 1;
  transform: none;
  transition: opacity 1.4s var(--ease-cinematic) 0.25s, transform 1.4s var(--ease-cinematic) 0.25s;
}

.contact-body p {
  margin-bottom: 1.4rem;
}

.contact-body p:last-child {
  margin-bottom: 0;
}

/* Single Restrained Aurora Spectral Color Accent Rule (56px) */
.contact-spectral-line {
  width: 56px;
  height: 1px;
  background: linear-gradient(90deg, #38cdf0 0%, #2b7fff 38%, #9d42f5 72%, #e042f5 100%);
  margin-bottom: 3.2rem;
  opacity: 1;
  transition: opacity 1.4s var(--ease-cinematic) 0.4s;
}

/* Precision Aurora Actions Group */
.contact-actions {
  display: flex;
  align-items: center;
  gap: 2.8rem;
  flex-wrap: wrap;
  opacity: 1;
  transform: none;
  transition: opacity 1.4s var(--ease-cinematic) 0.55s, transform 1.4s var(--ease-cinematic) 0.55s;
}

/* Primary Action: Precision Aurora Control */
.aurora-control-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1.1rem 2.6rem;
  border-radius: 2px;
  background-color: #000000;
  border: 1px solid rgba(255, 255, 255, 0.45);
  color: var(--color-text-primary);
  font-family: var(--font-family-code);
  font-size: 0.86rem;
  font-weight: 500;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  text-decoration: none;
  position: relative;
  overflow: hidden;
  transition: border-color 0.4s ease, color 0.4s ease, box-shadow 0.4s ease;
}

.aurora-control-primary .control-text {
  position: relative;
  z-index: 2;
}

.aurora-control-primary .control-border-pulse {
  position: absolute;
  bottom: 0;
  left: -100%;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, #38cdf0, #9d42f5, transparent);
  transition: transform 0.6s ease;
}

.aurora-control-primary:hover {
  border-color: rgba(255, 255, 255, 0.90);
  color: #ffffff;
}

.aurora-control-primary:hover .control-border-pulse {
  transform: translateX(200%);
  transition: transform 0.8s var(--ease-cinematic);
}

.aurora-control-primary:focus-visible {
  outline: 1px solid #ffffff;
  outline-offset: 4px;
}

/* Secondary Contact Link */
.aurora-control-secondary {
  font-family: var(--font-family-code);
  font-size: 0.84rem;
  font-weight: 400;
  letter-spacing: 0.28em;
  color: rgba(255, 255, 255, 0.65);
  text-transform: uppercase;
  text-decoration: none;
  padding: 0.8rem 0;
  position: relative;
  transition: color 0.4s ease;
}

.aurora-control-secondary::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: rgba(255, 255, 255, 0.8);
  transition: width 0.3s var(--ease-cinematic);
}

.aurora-control-secondary:hover {
  color: #ffffff;
}

.aurora-control-secondary:hover::after {
  width: 100%;
}

.aurora-control-secondary:focus-visible {
  outline: 1px solid #ffffff;
  outline-offset: 4px;
}

/* Progressive Reveal Override when initialized by JS Observer */
body.is-loaded .section-contact:not(.is-in-view) .contact-headline,
body.is-loaded .section-contact:not(.is-in-view) .contact-body,
body.is-loaded .section-contact:not(.is-in-view) .contact-spectral-line,
body.is-loaded .section-contact:not(.is-in-view) .contact-actions {
  opacity: 0;
  transform: translateY(24px);
}

.section-contact.is-in-view .contact-headline,
.section-contact.is-in-view .contact-body,
.section-contact.is-in-view .contact-spectral-line,
.section-contact.is-in-view .contact-actions {
  opacity: 1;
  transform: translateY(0);
}

/* Section 06 Responsive Adaptations */
@media (max-width: 1023px) {
  .section-contact {
    padding: 7rem 2rem 9rem;
  }
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .contact-meta {
    padding-top: 0;
  }
}

@media (max-width: 767px) {
  .section-contact {
    padding: 5rem 1.2rem 7rem;
  }
  .contact-headline {
    font-size: 1.85rem;
    line-height: 1.3;
    margin-bottom: 1.8rem;
  }
  .contact-body {
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 2.2rem;
  }
  .contact-actions {
    flex-direction: column;
    align-items: stretch;
    gap: 1.6rem;
  }
  .aurora-control-primary {
    width: 100%;
    text-align: center;
    padding: 1.2rem 1.8rem;
  }
  .aurora-control-secondary {
    text-align: center;
  }
}

/* --------------------------------------------------------------------------
   13. MINIMAL ARCHITECTURAL FOOTER
   -------------------------------------------------------------------------- */
.site-footer {
  position: relative;
  width: 100%;
  background-color: var(--color-bg-pure);
  padding: 6rem 2rem 5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  z-index: 10;
}

.footer-container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
}

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

/* Brand Wordmark Base */
.footer-brand {
  margin-bottom: 1rem;
}

.footer-brand-name {
  font-family: var(--font-family-code);
  font-size: 0.92rem;
  font-weight: 500;
  letter-spacing: 0.38em;
  color: rgba(255, 255, 255, 0.92);
  text-transform: uppercase;
}

/* Signature Line */
.footer-signature {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.6rem 1.2rem;
  font-family: var(--font-family-code);
  font-size: 0.82rem;
  font-weight: 400;
  letter-spacing: 0.32em;
  color: var(--color-text-silver);
  text-transform: uppercase;
  margin-bottom: 2.5rem;
}

.f-sig-word {
  color: rgba(255, 255, 255, 0.85);
  letter-spacing: 0.32em;
}

.f-sig-dot {
  color: var(--color-text-muted);
  opacity: 0.5;
  user-select: none;
}

/* Footer Navigation */
.footer-nav {
  margin-bottom: 2.8rem;
}

.footer-nav-list {
  display: flex;
  gap: 2.6rem;
  list-style: none;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
}

.footer-nav-link {
  font-family: var(--font-family-code);
  font-size: 0.74rem;
  font-weight: 400;
  letter-spacing: 0.26em;
  color: rgba(255, 255, 255, 0.50);
  text-decoration: none;
  text-transform: uppercase;
  transition: color 0.3s ease;
}

.footer-nav-link:hover,
.footer-nav-link:focus-visible {
  color: #ffffff;
  outline: none;
}

/* Copyright Line (With Enhanced Accessibility Readability) */
.footer-copyright {
  font-family: var(--font-family-code);
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.22em;
  color: rgba(255, 255, 255, 0.40);
  text-transform: uppercase;
}

/* Footer Responsive Adaptations */
@media (max-width: 767px) {
  .site-footer {
    padding: 4.5rem 1.2rem 4rem;
  }
  .footer-signature {
    font-size: 0.74rem;
    letter-spacing: 0.24em;
    gap: 0.4rem 0.8rem;
    max-width: 320px;
  }
  .footer-nav-list {
    gap: 1.2rem 1.8rem;
  }
  .footer-nav-link {
    font-size: 0.68rem;
    letter-spacing: 0.20em;
  }
}

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

  body.is-loading .site-header,
  body.is-loading .hero-arc-container,
  body.is-loading .hero-logo-wrapper,
  body.is-loading .hero-signature-block,
  body.is-loading .hero-stay-tuned,
  body.is-loading .hero-scroll-indicator,
  .aurora-headline,
  .aurora-body,
  .aurora-conceptual-block,
  .experience-headline,
  .experience-body,
  .experience-diagram-wrapper,
  .experience-sequence-block,
  .technology-headline,
  .technology-body,
  .technology-field-wrapper,
  .technology-territories-grid,
  .vision-headline,
  .vision-body,
  .vision-diagram-wrapper,
  .vision-closing-block,
  .contact-headline,
  .contact-body,
  .contact-spectral-line,
  .contact-actions {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }

  .signature-line {
    background: none !important;
    -webkit-background-clip: initial !important;
    background-clip: initial !important;
    -webkit-text-fill-color: initial !important;
    color: rgba(255, 255, 255, 0.92) !important;
    animation: none !important;
  }

  .r7-analyze-box,
  .r7-understand-box,
  .r7-decide-box,
  .r7-apply-box,
  .circle-analysis,
  .circle-understanding,
  .circle-decision,
  .circle-processing {
    animation: none !important;
  }

  .scroll-line,
  .m-conductor-pulse {
    animation: none !important;
    top: 25%;
  }
}