/* ==========================================================================
   VISHVAX OFFICIAL ABOUT PAGE STYLESHEET
   Scope: .about-page and standalone about.html design system
   ========================================================================== */

/* --- Design Tokens & Color System --- */
:root {
  /* Brand Accents */
  --primary: #4F46E5;
  --primary-hover: #4338CA;
  --primary-rgb: 79, 70, 229;
  --secondary: #7C3AED;
  --secondary-rgb: 124, 58, 237;
  --accent: #06B6D4;
  --accent-rgb: 6, 182, 212;
  --success: #22C55E;
  --magenta: #EC4899;

  /* Light Theme (Default fallback) */
  --bg-page: #FFFFFF;
  --bg-surface: #F8FAFC;
  --bg-surface-elevated: #FFFFFF;
  --bg-card: rgba(255, 255, 255, 0.85);
  --bg-card-hover: #FFFFFF;
  --bg-subtle: #F1F5F9;
  --bg-glass: rgba(255, 255, 255, 0.75);

  --text-primary: #0F172A;
  --text-secondary: #475569;
  --text-muted: #64748B;
  --text-subtle: #94A3B8;

  --border: rgba(15, 23, 42, 0.08);
  --border-strong: rgba(15, 23, 42, 0.15);
  --border-hover: rgba(79, 70, 229, 0.4);

  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 4px 12px -2px rgba(15, 23, 42, 0.08), 0 2px 6px -1px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 16px 32px -4px rgba(15, 23, 42, 0.09), 0 6px 12px -2px rgba(15, 23, 42, 0.05);
  --shadow-glow: 0 0 32px rgba(79, 70, 229, 0.18);

  --grad-brand: linear-gradient(135deg, #4F46E5 0%, #7C3AED 50%, #06B6D4 100%);
  --grad-text: linear-gradient(135deg, #0F172A 20%, #4F46E5 80%);
  --grad-badge: linear-gradient(135deg, rgba(79, 70, 229, 0.1) 0%, rgba(6, 182, 212, 0.1) 100%);

  /* Typography */
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-heading: 'Outfit', 'Plus Jakarta Sans', -apple-system, sans-serif;
  --font-mono: 'Space Grotesk', ui-monospace, SFMono-Regular, monospace;

  /* Sizing & Radius */
  --container-max: 1200px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-full: 9999px;

  /* Transitions */
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: 0.15s ease;
  --transition-base: 0.28s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

/* --- Dark Theme --- */
[data-theme="dark"] {
  --bg-page: #070B14;
  --bg-surface: #0D1321;
  --bg-surface-elevated: #131B2E;
  --bg-card: rgba(19, 27, 46, 0.65);
  --bg-card-hover: rgba(24, 34, 58, 0.85);
  --bg-subtle: rgba(255, 255, 255, 0.04);
  --bg-glass: rgba(13, 19, 33, 0.78);

  --text-primary: #F8FAFC;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  --text-subtle: #475569;

  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);
  --border-hover: rgba(99, 102, 241, 0.45);

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 6px 16px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 35px rgba(99, 102, 241, 0.22);

  --grad-text: linear-gradient(135deg, #FFFFFF 20%, #A5B4FC 80%);
  --grad-badge: linear-gradient(135deg, rgba(79, 70, 229, 0.2) 0%, rgba(6, 182, 212, 0.15) 100%);
}

/* --- Global Reset & Base --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body.about-body {
  font-family: var(--font-sans);
  background-color: var(--bg-page);
  color: var(--text-primary);
  line-height: 1.65;
  overflow-x: hidden;
  position: relative;
  transition: background-color var(--transition-base), color var(--transition-base);
}

body.drawer-open {
  overflow: hidden;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition-fast);
}

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

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

ul {
  list-style: none;
}

/* --- Accessibility & Focus --- */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 20px;
  background: var(--primary);
  color: #FFFFFF;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  z-index: 9999;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 20px;
}

/* --- Layout Utility --- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.section {
  padding-top: 100px;
  padding-bottom: 100px;
  position: relative;
}

@media (max-width: 768px) {
  .section {
    padding-top: 70px;
    padding-bottom: 70px;
  }
}

/* --- Gradient Text & Badges --- */
.gradient-text {
  background: var(--grad-brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  display: inline-block;
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: var(--grad-badge);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 16px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

[data-theme="dark"] .section-badge {
  color: var(--accent);
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 56px auto;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
  color: var(--text-primary);
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 12px 24px;
  border-radius: var(--radius-full);
  transition: var(--transition-base);
  white-space: nowrap;
}

.btn-primary {
  background: var(--grad-brand);
  color: #FFFFFF;
  box-shadow: 0 4px 16px rgba(79, 70, 229, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(79, 70, 229, 0.45);
}

.btn-secondary {
  background: var(--bg-surface-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border-strong);
}

.btn-secondary:hover {
  background: var(--bg-subtle);
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 8px 18px;
  font-size: 0.88rem;
}

/* --- Top Scroll Indicator --- */
#scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: var(--grad-brand);
  z-index: 10000;
  transition: width 0.1s linear;
}

/* --- Ambient Glow Canvas / Background --- */
.ambient-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.35;
  pointer-events: none;
  z-index: 0;
}

[data-theme="light"] .ambient-glow {
  opacity: 0.18;
}

.glow-top {
  top: -120px;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 350px;
  background: radial-gradient(circle, var(--primary) 0%, var(--secondary) 50%, transparent 80%);
}

.glow-accent {
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, var(--accent) 0%, transparent 70%);
}

/* ==========================================================================
   HEADER & NAVIGATION
   ========================================================================== */
.about-header {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: background-color var(--transition-base), border-color var(--transition-base);
}

.about-header.scrolled {
  box-shadow: var(--shadow-sm);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(1.35rem, 2vw, 1.55rem);
  letter-spacing: -0.02em;
  text-decoration: none;
  transition: transform var(--transition-fast);
}

.brand-logo-img {
  width: clamp(42px, 3.6vw, 48px);
  height: clamp(42px, 3.6vw, 48px);
  border-radius: 12px;
  object-fit: contain;
  filter: drop-shadow(0 2px 10px rgba(0, 210, 255, 0.4));
  transition: transform var(--transition-fast), filter var(--transition-fast);
}

.brand-link:hover .brand-logo-img {
  transform: scale(1.06) rotate(2deg);
  filter: drop-shadow(0 4px 16px rgba(0, 210, 255, 0.6));
}

.brand-name {
  color: var(--text-primary);
}

.desktop-nav-menu {
  display: flex;
  align-items: center;
}

.desktop-nav-menu .nav-menu {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 8px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.desktop-nav-menu .nav-link {
  font-size: 0.94rem;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: all var(--transition-fast);
  white-space: nowrap;
  text-decoration: none;
}

.desktop-nav-menu .nav-link:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.06);
}

.desktop-nav-menu .nav-link.active {
  color: var(--cyan, #00d2ff);
  background: rgba(0, 210, 255, 0.1);
  font-weight: 600;
  border-color: rgba(0, 210, 255, 0.25);
}

.desktop-nav-menu .nav-link:focus-visible {
  outline: 2px solid var(--cyan, #00d2ff);
  outline-offset: 2px;
}

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

/* Theme Toggle Button */
.theme-toggle-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  transition: var(--transition-base);
}

.theme-toggle-btn:hover {
  color: var(--primary);
  border-color: var(--border-hover);
  transform: rotate(15deg);
}

.theme-toggle-btn svg {
  width: 19px;
  height: 19px;
  fill: currentColor;
}

/* Mobile Menu Toggle Button */
.mobile-toggle-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  color: var(--text-primary);
}

.mobile-toggle-btn span {
  display: block;
  width: 20px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  transition: var(--transition-base);
}

.mobile-toggle-btn.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.mobile-toggle-btn.active span:nth-child(2) {
  opacity: 0;
}

.mobile-toggle-btn.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 900px) {
  .desktop-nav-menu {
    display: none;
  }
  .nav-cta-btn {
    display: none;
  }
  .mobile-toggle-btn {
    display: flex;
  }
}

/* --- Mobile Drawer --- */
.mobile-drawer {
  position: fixed;
  top: 0;
  right: -100%;
  width: 100%;
  max-width: 340px;
  height: 100vh;
  background: var(--bg-surface-elevated);
  z-index: 2000;
  box-shadow: -8px 0 32px rgba(0, 0, 0, 0.35);
  display: flex;
  flex-direction: column;
  padding: 24px;
  transition: right 0.35s var(--ease);
}

.mobile-drawer.open {
  right: 0;
}

.drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  z-index: 1999;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.drawer-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
}

.drawer-close-btn {
  font-size: 1.5rem;
  color: var(--text-secondary);
  line-height: 1;
  padding: 6px;
}

.mobile-nav-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg-subtle);
}

.mobile-nav-link.active,
.mobile-nav-link:hover {
  background: var(--grad-badge);
  color: var(--primary);
}

[data-theme="dark"] .mobile-nav-link.active,
[data-theme="dark"] .mobile-nav-link:hover {
  color: var(--accent);
}

.drawer-footer {
  margin-top: auto;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* ==========================================================================
   SECTION 1: HERO
   ========================================================================== */
.about-hero {
  padding-top: 80px;
  padding-bottom: 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 840px;
  margin: 0 auto;
}

.hero-headline {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 5.5vw, 4rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 20px;
}

.hero-subtext {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 32px;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ==========================================================================
   SECTION 2: BRAND INTRODUCTION (Split Editorial Layout)
   ========================================================================== */
.intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 56px 48px;
  box-shadow: var(--shadow-sm);
}

@media (max-width: 860px) {
  .intro-grid {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 36px 24px;
  }
}

.intro-lead-statement {
  font-family: var(--font-heading);
  font-size: clamp(1.65rem, 3vw, 2.35rem);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  position: relative;
}

.intro-lead-statement::before {
  content: '';
  display: block;
  width: 44px;
  height: 4px;
  background: var(--grad-brand);
  border-radius: 2px;
  margin-bottom: 20px;
}

.intro-paragraphs {
  display: flex;
  flex-direction: column;
  gap: 18px;
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ==========================================================================
   SECTION 3: VISHVAX PHILOSOPHY
   ========================================================================== */
.philosophy-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

@media (max-width: 1024px) {
  .philosophy-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 580px) {
  .philosophy-grid {
    grid-template-columns: 1fr;
  }
}

.philosophy-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 32px 26px;
  transition: var(--transition-base);
  position: relative;
  display: flex;
  flex-direction: column;
}

.philosophy-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-md);
}

.philosophy-num {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}

[data-theme="dark"] .philosophy-num {
  color: var(--accent);
}

.philosophy-title {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.philosophy-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ==========================================================================
   SECTION 4: WHAT WE BUILD
   ========================================================================== */
.build-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

@media (max-width: 960px) {
  .build-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 620px) {
  .build-grid {
    grid-template-columns: 1fr;
  }
}

.build-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  transition: var(--transition-base);
  position: relative;
  display: flex;
  flex-direction: column;
}

.build-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-md);
}

.build-icon-wrap {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: var(--grad-badge);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  margin-bottom: 20px;
}

[data-theme="dark"] .build-icon-wrap {
  color: var(--accent);
}

.build-icon-wrap svg {
  width: 24px;
  height: 24px;
}

.build-card-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-primary);
}

.build-card-desc {
  font-size: 0.94rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ==========================================================================
   SECTION 5: VISHVAX PRODUCTS (Ecosystem)
   ========================================================================== */
.products-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

@media (max-width: 800px) {
  .products-grid {
    grid-template-columns: 1fr;
  }
}

.product-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 36px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition-base);
  position: relative;
  overflow: hidden;
}

.product-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}

.product-top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.product-badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 4px 12px;
  border-radius: var(--radius-full);
}

.badge-live {
  background: rgba(34, 197, 94, 0.12);
  color: var(--success);
  border: 1px solid rgba(34, 197, 94, 0.3);
}

.badge-upcoming {
  background: rgba(124, 58, 237, 0.12);
  color: var(--secondary);
  border: 1px solid rgba(124, 58, 237, 0.3);
}

.product-title {
  font-family: var(--font-heading);
  font-size: 1.65rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.product-category-sub {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 14px;
}

[data-theme="dark"] .product-category-sub {
  color: var(--accent);
}

.product-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 28px;
}

.product-footer-action {
  margin-top: auto;
}

/* ==========================================================================
   SECTION 6: OUR TECHNOLOGY
   ========================================================================== */
.tech-badges-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  max-width: 900px;
  margin: 0 auto;
}

.tech-badge-item {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  transition: var(--transition-base);
  box-shadow: var(--shadow-sm);
}

.tech-badge-item:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.tech-badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
}

[data-theme="dark"] .tech-badge-dot {
  background: var(--accent);
}

/* ==========================================================================
   SECTION 7: VISION
   ========================================================================== */
.vision-box {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 64px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

@media (max-width: 600px) {
  .vision-box {
    padding: 40px 24px;
  }
}

.vision-main-statement {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 3.8vw, 2.75rem);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
  max-width: 880px;
  margin-left: auto;
  margin-right: auto;
}

.vision-supporting-text {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

/* ==========================================================================
   SECTION 8: MISSION
   ========================================================================== */
.mission-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 780px;
  margin: 0 auto;
}

.mission-item {
  display: flex;
  align-items: center;
  gap: 24px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 22px 28px;
  transition: var(--transition-base);
}

.mission-item:hover {
  border-color: var(--border-hover);
  transform: translateX(6px);
  box-shadow: var(--shadow-sm);
}

.mission-index {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--primary);
  width: 32px;
  flex-shrink: 0;
}

[data-theme="dark"] .mission-index {
  color: var(--accent);
}

.mission-text {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* ==========================================================================
   SECTION 9: DESIGN PRINCIPLES
   ========================================================================== */
.principles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

@media (max-width: 900px) {
  .principles-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 580px) {
  .principles-grid {
    grid-template-columns: 1fr;
  }
}

.principle-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  transition: var(--transition-base);
}

.principle-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.principle-title {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.principle-desc {
  font-size: 0.94rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* ==========================================================================
   SECTION 10: THE VISHVAX DIFFERENCE
   ========================================================================== */
.difference-box {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 56px 48px;
  box-shadow: var(--shadow-sm);
}

@media (max-width: 768px) {
  .difference-box {
    padding: 36px 24px;
  }
}

.difference-lead-text {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 740px;
}

.difference-pillars-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

@media (max-width: 768px) {
  .difference-pillars-grid {
    grid-template-columns: 1fr;
  }
}

.pillar-box {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 26px 22px;
}

.pillar-box h4 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 6px;
}

[data-theme="dark"] .pillar-box h4 {
  color: var(--accent);
}

.pillar-box p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* ==========================================================================
   SECTION 11: FUTURE (What's Next?)
   ========================================================================== */
.future-text {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 740px;
  margin: 0 auto 40px auto;
  text-align: center;
}

.status-cards-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

@media (max-width: 900px) {
  .status-cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .status-cards-grid {
    grid-template-columns: 1fr;
  }
}

.status-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px 20px;
  text-align: center;
  position: relative;
  transition: var(--transition-base);
}

.status-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
}

.status-pulse {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--primary);
  margin-bottom: 10px;
  animation: pulse 2s infinite;
}

[data-theme="dark"] .status-pulse {
  background: var(--accent);
}

@keyframes pulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(79, 70, 229, 0.6); }
  70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(79, 70, 229, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(79, 70, 229, 0); }
}

.status-card-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--text-primary);
}

.status-card-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* ==========================================================================
   SECTION 12: BRAND STATEMENT
   ========================================================================== */
.brand-statement-section {
  padding: 80px 0;
  text-align: center;
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.brand-statement-word {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 12px;
}

[data-theme="dark"] .brand-statement-word {
  color: var(--accent);
}

.brand-statement-tagline {
  font-family: var(--font-heading);
  font-size: clamp(1.85rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

/* ==========================================================================
   SECTION 13: CALL TO ACTION
   ========================================================================== */
.cta-box {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 64px 48px;
  text-align: center;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

@media (max-width: 600px) {
  .cta-box {
    padding: 44px 24px;
  }
}

.cta-title {
  font-family: var(--font-heading);
  font-size: clamp(1.85rem, 3.5vw, 2.5rem);
  font-weight: 800;
  margin-bottom: 14px;
  letter-spacing: -0.02em;
}

.cta-subtext {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 580px;
  margin: 0 auto 32px auto;
}

.cta-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ==========================================================================
   SECTION 14: FOOTER
   ========================================================================== */
.about-footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  padding: 64px 0 36px 0;
  font-size: 0.92rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

.footer-brand-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-top: 14px;
  max-width: 380px;
}

.footer-col-title {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.footer-nav-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-nav-link {
  color: var(--text-secondary);
}

.footer-nav-link:hover {
  color: var(--primary);
}

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

.social-links {
  display: flex;
  align-items: center;
  gap: 12px;
}

.social-icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  transition: var(--transition-base);
}

.social-icon-btn:hover {
  color: var(--primary);
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.social-icon-btn svg {
  width: 18px;
  height: 18px;
}

.footer-bottom {
  padding-top: 28px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* ==========================================================================
   SCROLL REVEAL ANIMATIONS
   ========================================================================== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.65s var(--ease), transform 0.65s var(--ease);
  will-change: opacity, transform;
}

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

/* Reduced Motion Support */
@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;
  }
  .reveal {
    opacity: 1 !important;
    transform: none !important;
  }
  .status-pulse {
    animation: none !important;
  }
}

/* ==========================================================================
   FLOATING WHATSAPP CONTACT BUTTON
   ========================================================================== */
.floating-whatsapp-btn {
  position: fixed;
  bottom: calc(24px + env(safe-area-inset-bottom, 0px));
  right: calc(24px + env(safe-area-inset-right, 0px));
  width: 56px;
  height: 56px;
  background: #25d366;
  background: linear-gradient(135deg, #25d366 0%, #128c7e 100%);
  color: #ffffff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.4), 0 2px 6px rgba(0, 0, 0, 0.25);
  z-index: 950;
  text-decoration: none;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  cursor: pointer;
}

.floating-whatsapp-btn:hover {
  transform: scale(1.08) translateY(-3px);
  box-shadow: 0 12px 30px rgba(37, 211, 102, 0.55), 0 4px 10px rgba(0, 0, 0, 0.3);
  color: #ffffff;
}

.floating-whatsapp-btn:active {
  transform: scale(0.96) translateY(0);
}

.floating-whatsapp-btn:focus-visible {
  outline: 3px solid #25d366;
  outline-offset: 4px;
}

.floating-whatsapp-btn svg {
  width: 32px;
  height: 32px;
  fill: #ffffff;
  transition: transform 0.25s ease;
}

.floating-whatsapp-btn:hover svg {
  transform: scale(1.05);
}

.floating-whatsapp-btn .whatsapp-tooltip {
  position: absolute;
  right: calc(100% + 12px);
  top: 50%;
  transform: translateY(-50%) translateX(6px);
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: #ffffff;
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 600;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  border: 1px solid rgba(37, 211, 102, 0.3);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.floating-whatsapp-btn:hover .whatsapp-tooltip {
  opacity: 1;
  transform: translateY(-50%) translateX(0);
}

@media (max-width: 640px) {
  .floating-whatsapp-btn {
    width: 50px;
    height: 50px;
    bottom: calc(20px + env(safe-area-inset-bottom, 0px));
    right: calc(16px + env(safe-area-inset-right, 0px));
  }
  .floating-whatsapp-btn svg {
    width: 28px;
    height: 28px;
  }
  .floating-whatsapp-btn .whatsapp-tooltip {
    display: none;
  }
}