/* ==========================================================================
   VIRAL NATION 2026 DESIGN SYSTEM & THEME
   Adapted for Matchube Creator Platform
   ========================================================================== */

:root {
  /* Viral Nation Core Brand Palette */
  --vn-color-primary: #10b981;
  --vn-color-primary-rgb: 16, 185, 129;
  --vn-color-primary-light: #34d399;
  --vn-color-primary-light-rgb: 52, 211, 153;
  --vn-color-primary-pale: #a7f3d0;
  --vn-color-primary-deep: #065f46;
  --vn-color-secondary: #3b82f6;
  --vn-color-secondary-rgb: 59, 130, 246;
  --vn-color-accent: #a7f3d0;
  
  --vn-color-base: #0f2a4a;
  --vn-color-base-rgb: 15, 42, 74;
  --vn-color-base-dark: #061829;
  --vn-color-base-dark-rgb: 6, 24, 41;
  --vn-color-base-mid: #1f4275;
  --vn-color-base-mid-rgb: 31, 66, 117;
  --vn-color-base-light: #8fa5c2;
  --vn-color-base-light-rgb: 143, 165, 194;
  --vn-color-base-pale: #cdd6e2;
  
  --vn-color-black: #000000;
  --vn-color-dark: #0a0b14;
  --vn-color-dark-rgb: 10, 11, 20;
  --vn-color-gray-dark: #0a0b14;
  --vn-color-gray-900: #0a0b14;
  --vn-color-gray-800: #111119;
  --vn-color-gray-700: #1f1f26;
  --vn-color-gray-600: #1f2033;
  --vn-color-gray-500: #52525b;
  --vn-color-gray-400: #71717a;
  --vn-color-gray-300: #e5e5e5;
  --vn-color-gray-200: #f4f4f5;
  --vn-color-gray-100: #fafafa;
  --vn-color-white: #ffffff;
  --vn-color-white-rgb: 255, 255, 255;
  
  --vn-color-success: #00c851;
  --vn-color-warning: #fb3;
  --vn-color-error: #ff3b30;
  --vn-color-info: #33b5e5;
  
  /* Gradients */
  --vn-gradient-primary: linear-gradient(135deg, #10b981 0%, #3b82f6 50%, #8b5cf6 100%);
  --vn-gradient-secondary: linear-gradient(90deg, #10b981 0%, #3b82f6 100%);
  
  /* Fonts */
  --vn-font-primary: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --vn-font-display: "Space Grotesk", "Inter", sans-serif;
  --vn-font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  
  /* Typography Scale */
  --vn-text-xs: 0.75rem;
  --vn-text-s: 0.875rem;
  --vn-text-m: 1.0625rem;
  --vn-text-l: 1.25rem;
  --vn-text-xl: 1.5rem;
  --vn-text-xxl: 2rem;
  
  --vn-h1: clamp(2.5rem, 5vw, 4.5rem);
  --vn-h2: clamp(2rem, 3.5vw, 3rem);
  --vn-h3: clamp(1.35rem, 2vw, 1.85rem);
  --vn-h4: 1.25rem;
  --vn-entry: clamp(2.5rem, 5vw, 4.5rem);
  
  --vn-letter-spacing-heading: -0.025em;
  --vn-letter-spacing-label: 0.1em;
  
  --vn-border-on-dark: 1px solid rgba(255, 255, 255, 0.12);
  --vn-border-on-light: 1px solid rgba(0, 0, 0, 0.1);
  --vn-radius-xs: 0.25rem;
  --vn-radius-s: 0.5rem;
  --vn-radius-m: 0.75rem;
  --vn-radius-l: 1rem;
  --vn-radius-full: 9999px;
  
  --vn-container-l: 1350px;
}

.cyber-glow {
  box-shadow: 0 0 50px rgba(16, 185, 129, 0.08), 0 0 100px rgba(31, 66, 117, 0.15);
}
.command-box {
  background: rgba(8, 24, 41, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  box-shadow: 0 20px 50px -10px rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.08);
}
.command-box:focus-within {
  border-color: rgba(52, 211, 153, 0.4);
  box-shadow: 0 20px 50px -10px rgba(0, 0, 0, 0.5), 0 0 30px rgba(16, 185, 129, 0.15), inset 0 1px 0 rgba(255, 255, 255, 0.12);
}

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

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

body {
  background-color: var(--vn-color-dark);
  color: var(--vn-color-base-pale);
  font-family: var(--vn-font-primary);
  font-size: var(--vn-text-m);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  -webkit-tap-highlight-color: transparent;
}

/* Viral Nation Layout Container (.wrap) */
.wrap {
  margin: 0 auto;
  width: min(var(--vn-container-l), calc(100% - 48px));
}

@media (max-width: 640px) {
  .wrap {
    width: calc(100% - 32px);
  }
}

/* Typography Helpers */
.mono {
  font-family: var(--vn-font-mono);
}

.eyebrow, .section-kicker {
  color: var(--vn-color-primary-light);
  display: block;
  font-family: var(--vn-font-mono);
  font-size: var(--vn-text-xs);
  font-weight: 700;
  letter-spacing: var(--vn-letter-spacing-label);
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.keep-case {
  text-transform: none !important;
}

.dot {
  color: var(--vn-color-primary-light);
  display: inline-block;
}

/* Scroll Reveal */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.75s cubic-bezier(0.16, 1, 0.3, 1), transform 0.75s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

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

/* ==========================================================================
   BUTTON SYSTEM (.btn & .vn-btn)
   ========================================================================== */

.btn, .vn-btn {
  align-items: center;
  border: 1px solid transparent;
  border-radius: var(--vn-radius-full);
  cursor: pointer;
  display: inline-flex;
  font-family: var(--vn-font-primary);
  font-size: 0.8125rem;
  font-weight: 700;
  justify-content: center;
  letter-spacing: 0.04em;
  min-height: 48px;
  padding: 0 1.75rem;
  text-decoration: none;
  text-transform: uppercase;
  transition: transform 0.18s ease, background 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
  white-space: nowrap;
}

.btn:hover, .vn-btn:hover {
  transform: translateY(-2px);
}

.btn.primary, .vn-btn--primary {
  background: var(--vn-color-white);
  border-color: var(--vn-color-white);
  color: var(--vn-color-dark);
  box-shadow: 0 4px 15px rgba(255, 255, 255, 0.15);
}

.btn.primary:hover, .vn-btn--primary:hover {
  background: var(--vn-color-primary-light);
  border-color: var(--vn-color-primary-light);
  color: #000000;
  box-shadow: 0 6px 25px rgba(52, 211, 153, 0.4);
}

.btn.secondary, .vn-btn--secondary {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.2);
  color: var(--vn-color-white);
}

.btn.secondary:hover, .vn-btn--secondary:hover {
  border-color: rgba(255, 255, 255, 0.5);
  background: rgba(255, 255, 255, 0.08);
}

.vn-btn--gradient {
  background: var(--vn-gradient-secondary);
  color: #ffffff;
  border: none;
  box-shadow: 0 4px 20px rgba(16, 185, 129, 0.35);
}

.vn-btn--gradient:hover {
  opacity: 0.95;
  box-shadow: 0 6px 28px rgba(59, 130, 246, 0.45);
}

.vn-btn--sm {
  min-height: 40px;
  padding: 0 1.25rem;
  font-size: 0.75rem;
}

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

.hero {
  background: linear-gradient(135deg, var(--vn-color-dark) 0%, var(--vn-color-base-dark) 60%, var(--vn-color-dark) 100%);
  color: #fff;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  padding-bottom: 5rem;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 80% 20%, rgba(16, 185, 129, 0.08), transparent 45%),
              radial-gradient(circle at 20% 80%, rgba(59, 130, 246, 0.08), transparent 45%);
  pointer-events: none;
  z-index: 0;
}

.hero-wrap {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3.5rem;
  align-items: center;
  position: relative;
  z-index: 2;
}

@media (max-width: 1024px) {
  .hero-wrap {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
}

.hero h1 {
  color: var(--vn-color-white);
  font-family: var(--vn-font-display);
  font-size: var(--vn-h1);
  font-weight: 800;
  letter-spacing: var(--vn-letter-spacing-heading);
  line-height: 1.08;
  margin-bottom: 1.5rem;
}

.hero .lede {
  color: var(--vn-color-base-pale);
  font-size: var(--vn-text-l);
  line-height: 1.5;
  margin-bottom: 2rem;
  max-width: 680px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

/* ==========================================================================
   LOGOWALL / MARQUEE
   ========================================================================== */

.logowall {
  border-top: var(--vn-border-on-dark);
  border-bottom: var(--vn-border-on-dark);
  background: rgba(6, 11, 20, 0.7);
  padding: 2.5rem 0;
  position: relative;
  overflow: hidden;
}

.lw-k {
  color: var(--vn-color-base-light);
  display: block;
  font-family: var(--vn-font-mono);
  font-size: var(--vn-text-xs);
  font-weight: 700;
  letter-spacing: var(--vn-letter-spacing-label);
  margin-bottom: 1.5rem;
  text-align: center;
  text-transform: uppercase;
}

.lw-viewport {
  overflow: hidden;
  position: relative;
  width: 100%;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 120px, #000 calc(100% - 120px), transparent);
  mask-image: linear-gradient(90deg, transparent, #000 120px, #000 calc(100% - 120px), transparent);
}

.lw-track {
  animation: lw-scroll 35s linear infinite;
  display: flex;
  width: max-content;
}

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

.lw-group {
  display: flex;
  align-items: center;
  gap: 4rem;
  padding-right: 4rem;
}

.lw-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  opacity: 0.45;
  transition: opacity 0.25s ease, transform 0.25s ease;
  user-select: none;
}

.lw-item:hover {
  opacity: 1;
  transform: scale(1.05);
}

.lw-logo-icon {
  width: 22px;
  height: 22px;
  fill: currentColor;
}

.lw-logo-text {
  font-family: var(--vn-font-display);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #ffffff;
}

@keyframes lw-scroll {
  to { transform: translateX(-50%); }
}

/* ==========================================================================
   DATA RAIL SECTION (.hz-section)
   ========================================================================== */

.hz-section {
  background: var(--vn-color-dark);
  border-bottom: var(--vn-border-on-dark);
  padding: 5rem 0;
}

.hz-claim {
  color: var(--vn-color-white);
  font-size: var(--vn-text-l);
  font-weight: 700;
  margin-bottom: 0.5rem;
  text-align: center;
}

.hz-claim em {
  color: var(--vn-color-primary-light);
  font-style: normal;
}

.hz-sub {
  color: var(--vn-color-base-light);
  font-family: var(--vn-font-mono);
  font-size: var(--vn-text-xs);
  letter-spacing: var(--vn-letter-spacing-label);
  margin-bottom: 3rem;
  text-align: center;
}

.hz-rail {
  border-top: 1px solid rgba(var(--vn-color-primary-light-rgb), 0.7);
  border-bottom: var(--vn-border-on-dark);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  position: relative;
}

.hz-rail::before {
  animation: sweep-line 3.5s linear infinite;
  background: linear-gradient(90deg, transparent, var(--vn-color-primary-light), transparent);
  content: "";
  height: 1px;
  left: 0;
  position: absolute;
  top: -1px;
  width: 100%;
}

@keyframes sweep-line {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

.hz-rail > div {
  border-right: var(--vn-border-on-dark);
  padding: 2rem 1.5rem;
  position: relative;
  transition: all 0.3s ease;
}

.hz-rail > div:last-child {
  border-right: none;
}

.hz-rail > div.lead {
  background: rgba(16, 185, 129, 0.05);
}

.hz-rail b {
  color: #fff;
  display: block;
  font-family: var(--vn-font-mono);
  font-size: 2.25rem;
  font-weight: 800;
  line-height: 1;
}

.hz-rail > div.lead b {
  color: var(--vn-color-primary-light);
}

.hz-rail span {
  color: var(--vn-color-base-pale);
  display: block;
  font-size: 0.8125rem;
  margin-top: 0.75rem;
}

.hz-rail i {
  color: var(--vn-color-primary-light);
  display: block;
  font-family: var(--vn-font-mono);
  font-size: 0.6875rem;
  font-style: normal;
  letter-spacing: var(--vn-letter-spacing-label);
  margin-top: 0.5rem;
  text-transform: uppercase;
}

@media (max-width: 900px) {
  .hz-rail {
    grid-template-columns: repeat(2, 1fr);
  }
  .hz-rail > div:nth-child(2) {
    border-right: none;
  }
  .hz-rail > div:nth-child(-n+2) {
    border-bottom: var(--vn-border-on-dark);
  }
}

@media (max-width: 560px) {
  .hz-rail {
    grid-template-columns: 1fr;
  }
  .hz-rail > div {
    border-right: none;
    border-bottom: var(--vn-border-on-dark);
  }
}

/* ==========================================================================
   THE MARKET SHIFT (.shift)
   ========================================================================== */

.shift {
  background: var(--vn-color-base-dark);
  border-bottom: var(--vn-border-on-dark);
  padding: 6rem 0;
}

.shift-line {
  color: var(--vn-color-base-pale);
  font-family: var(--vn-font-display);
  font-size: var(--vn-h2);
  font-weight: 700;
  line-height: 1.2;
  margin: 0 auto 3.5rem;
  max-width: 900px;
  text-align: center;
}

.shift-line b {
  color: #fff;
}

.shift-stats {
  border-top: var(--vn-border-on-dark);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  padding-top: 2.5rem;
}

.shift-stats > div {
  border-right: var(--vn-border-on-dark);
  padding: 0 2rem;
}

.shift-stats > div:first-child {
  padding-left: 0;
}

.shift-stats > div:last-child {
  border-right: none;
}

.shift-stats b {
  color: #fff;
  display: block;
  font-family: var(--vn-font-mono);
  font-size: 2.25rem;
  font-weight: 800;
  line-height: 1;
}

.shift-stats span {
  color: var(--vn-color-base-light);
  display: block;
  font-size: 0.8125rem;
  margin-top: 0.5rem;
}

@media (max-width: 900px) {
  .shift-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
  }
  .shift-stats > div {
    border: none;
    padding: 0;
  }
}

/* ==========================================================================
   CATEGORY GAP (.market-section)
   ========================================================================== */

.market-section {
  background: var(--vn-color-dark);
  border-bottom: var(--vn-border-on-dark);
  padding: 6rem 0;
}

.cg {
  display: grid;
  grid-template-columns: 1fr 48px 1.05fr;
  gap: 1.5rem;
  align-items: stretch;
  margin-top: 3.5rem;
}

@media (max-width: 1024px) {
  .cg {
    grid-template-columns: 1fr;
  }
}

.cg-frags {
  display: grid;
  gap: 1rem;
  grid-template-rows: repeat(4, 1fr);
}

.cg-frag {
  background: rgba(255, 255, 255, 0.02);
  border: var(--vn-border-on-dark);
  border-radius: var(--vn-radius-s);
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 1rem;
  align-items: center;
  padding: 1.25rem 1.5rem;
}

.cg-frag span {
  color: var(--vn-color-base-light);
  font-family: var(--vn-font-mono);
  font-size: var(--vn-text-xs);
  font-weight: 700;
  letter-spacing: var(--vn-letter-spacing-label);
  text-transform: uppercase;
}

.cg-frag b {
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  display: block;
}

.cg-frag p {
  color: var(--vn-color-gray-400);
  font-size: 0.8125rem;
  margin: 0;
}

.cg-spine {
  position: relative;
}

.cg-spine::before {
  content: "";
  position: absolute;
  top: 10%;
  bottom: 10%;
  left: 50%;
  width: 1px;
  background: linear-gradient(180deg, transparent, var(--vn-color-primary-light) 30%, var(--vn-color-primary-light) 70%, transparent);
}

.cg-spine::after {
  content: "→";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: var(--vn-color-primary-light);
  font-size: 1.5rem;
  font-weight: 800;
  background: var(--vn-color-dark);
  padding: 0.5rem 0;
}

@media (max-width: 1024px) {
  .cg-spine {
    display: none;
  }
}

.cg-sys {
  background: linear-gradient(145deg, var(--vn-color-base-dark), var(--vn-color-base));
  border: var(--vn-border-on-dark);
  border-top: 3px solid var(--vn-color-primary-light);
  border-radius: var(--vn-radius-m);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 2.25rem;
}

.cg-sys h3 {
  color: #fff;
  font-size: var(--vn-h3);
  font-weight: 800;
  line-height: 1.2;
  margin: 0.5rem 0 1rem;
}

.cg-sys p {
  color: var(--vn-color-base-pale);
  font-size: 0.875rem;
}

.sc-chain {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  margin: 1.5rem 0;
}

.sc-chain span {
  border: var(--vn-border-on-dark);
  border-radius: var(--vn-radius-full);
  color: var(--vn-color-base-pale);
  font-family: var(--vn-font-mono);
  font-size: var(--vn-text-xs);
  letter-spacing: var(--vn-letter-spacing-label);
  padding: 0.4rem 0.85rem;
  text-transform: uppercase;
}

.sc-punch {
  border-top: var(--vn-border-on-dark);
  color: var(--vn-color-primary-light);
  font-size: 0.875rem;
  font-weight: 600;
  padding-top: 1.25rem;
}

/* ==========================================================================
   OPERATING MODEL (.architecture)
   ========================================================================== */

.architecture {
  background: var(--vn-color-base-dark);
  border-bottom: var(--vn-border-on-dark);
  padding: 6rem 0;
}

.model-row {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 2.5rem;
  align-items: start;
  margin-top: 3.5rem;
}

@media (max-width: 860px) {
  .model-row {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
}

.model-label {
  color: var(--vn-color-base-light);
  font-family: var(--vn-font-mono);
  font-size: var(--vn-text-xs);
  letter-spacing: var(--vn-letter-spacing-label);
  padding-top: 1rem;
  position: relative;
  text-transform: uppercase;
}

.model-label::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 120px;
  height: 2px;
  background: var(--vn-color-primary-light);
}

.discipline-grid {
  border: 1px solid rgba(var(--vn-color-primary-light-rgb), 0.25);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: rgba(6, 11, 20, 0.4);
}

@media (max-width: 1100px) {
  .discipline-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .discipline-grid {
    grid-template-columns: 1fr;
  }
}

.discipline {
  border-right: 1px solid rgba(var(--vn-color-primary-light-rgb), 0.2);
  border-bottom: 1px solid rgba(var(--vn-color-primary-light-rgb), 0.2);
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  min-height: 210px;
  padding: 1.75rem 1.25rem;
  transition: background 0.2s ease;
}

.discipline:hover {
  background: rgba(255, 255, 255, 0.04);
}

.discipline.hotlane {
  background: linear-gradient(180deg, rgba(var(--vn-color-primary-light-rgb), 0.1), rgba(var(--vn-color-primary-light-rgb), 0.02));
  border-color: rgba(var(--vn-color-primary-light-rgb), 0.5);
}

.discipline .num {
  color: var(--vn-color-primary-light);
  font-family: var(--vn-font-mono);
  font-size: var(--vn-text-xs);
  letter-spacing: var(--vn-letter-spacing-label);
  margin-bottom: 1.25rem;
}

.discipline b {
  color: #fff;
  display: block;
  font-size: 0.95rem;
  line-height: 1.3;
  margin-bottom: 0.5rem;
}

.discipline span:last-child {
  color: var(--vn-color-base-light);
  font-size: 0.75rem;
  line-height: 1.45;
}

.foundation {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

@media (max-width: 860px) {
  .foundation {
    grid-template-columns: 1fr;
  }
}

.foundation-item {
  background: rgba(6, 11, 20, 0.4);
  border: 1px solid rgba(var(--vn-color-primary-light-rgb), 0.25);
  border-top: 3px solid var(--vn-color-primary-light);
  padding: 2rem 1.5rem;
}

.foundation-item .tag {
  color: var(--vn-color-primary-light);
  font-family: var(--vn-font-mono);
  font-size: var(--vn-text-xs);
  letter-spacing: var(--vn-letter-spacing-label);
  margin-bottom: 1rem;
  text-transform: uppercase;
}

.foundation-item h4 {
  color: #fff;
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.foundation-item p {
  color: var(--vn-color-base-light);
  font-size: 0.8125rem;
  line-height: 1.5;
}

/* ==========================================================================
   CASE STUDY VIEWER (.proof-section)
   ========================================================================== */

.proof-section {
  background: var(--vn-color-dark);
  border-bottom: var(--vn-border-on-dark);
  padding: 6rem 0;
}

.case-viewer {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 1.5rem;
  margin-top: 3.5rem;
}

@media (max-width: 900px) {
  .case-viewer {
    grid-template-columns: 1fr;
  }
}

.case-nav {
  display: grid;
  gap: 0.75rem;
  align-content: start;
}

.case-button {
  background: rgba(255, 255, 255, 0.02);
  border: var(--vn-border-on-dark);
  border-radius: var(--vn-radius-s);
  color: var(--vn-color-white);
  cursor: pointer;
  padding: 1.25rem 1rem;
  text-align: left;
  transition: all 0.2s ease;
}

.case-button:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.25);
}

.case-button[aria-pressed="true"] {
  background: var(--vn-color-base-mid);
  border-color: var(--vn-color-primary-light);
  box-shadow: 0 0 20px rgba(16, 185, 129, 0.12);
}

.case-button span {
  color: var(--vn-color-primary-light);
  display: block;
  font-family: var(--vn-font-mono);
  font-size: var(--vn-text-xs);
  letter-spacing: var(--vn-letter-spacing-label);
  margin-bottom: 0.35rem;
  text-transform: uppercase;
}

.case-button b {
  display: block;
  font-size: 1rem;
  color: #fff;
  margin-bottom: 0.2rem;
}

.case-button em {
  color: var(--vn-color-base-light);
  display: block;
  font-size: 0.75rem;
  font-style: normal;
}

.case-stage {
  background: linear-gradient(140deg, var(--vn-color-base-dark), var(--vn-color-base));
  border: var(--vn-border-on-dark);
  border-radius: var(--vn-radius-m);
  color: #fff;
  padding: 2.5rem;
  position: relative;
}

.case-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.case-brand-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.2);
  object-fit: cover;
}

.case-title {
  color: #fff;
  font-size: var(--vn-h3);
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 0.75rem;
}

.case-summary {
  color: var(--vn-color-base-pale);
  font-size: 0.95rem;
  line-height: 1.55;
}

.case-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin: 2rem 0;
}

.case-metric {
  background: rgba(255, 255, 255, 0.04);
  border: var(--vn-border-on-dark);
  border-radius: var(--vn-radius-s);
  padding: 1.25rem;
}

.case-metric strong {
  color: #fff;
  display: block;
  font-family: var(--vn-font-mono);
  font-size: 1.75rem;
  line-height: 1;
}

.case-metric span {
  color: var(--vn-color-base-pale);
  display: block;
  font-size: 0.75rem;
  margin-top: 0.5rem;
}

.case-proof {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  border-top: var(--vn-border-on-dark);
  padding-top: 1.5rem;
}

.case-proof-block h4 {
  color: var(--vn-color-primary-light);
  font-family: var(--vn-font-mono);
  font-size: var(--vn-text-xs);
  letter-spacing: var(--vn-letter-spacing-label);
  margin-bottom: 0.35rem;
  text-transform: uppercase;
}

.case-proof-block p {
  color: var(--vn-color-base-pale);
  font-size: 0.8125rem;
}

.case-flow {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.5rem;
}

.case-flow span {
  background: rgba(var(--vn-color-primary-light-rgb), 0.12);
  border: 1px solid rgba(var(--vn-color-primary-light-rgb), 0.4);
  border-radius: var(--vn-radius-full);
  color: #fff;
  font-family: var(--vn-font-mono);
  font-size: var(--vn-text-xs);
  letter-spacing: var(--vn-letter-spacing-label);
  padding: 0.35rem 0.75rem;
  text-transform: uppercase;
}

/* Awards Grid */
.qa-awgrid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-top: 3.5rem;
  padding-top: 3rem;
  border-top: var(--vn-border-on-dark);
}

.qa-aw {
  background: rgba(255, 255, 255, 0.02);
  border: var(--vn-border-on-dark);
  border-radius: var(--vn-radius-s);
  padding: 1.5rem 1rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
}

.qa-aw-icon {
  width: 32px;
  height: 32px;
  color: var(--vn-color-primary-light);
  margin-bottom: 0.5rem;
}

.qa-aw b {
  font-size: 0.8125rem;
  color: #fff;
}

.qa-aw span {
  color: var(--vn-color-base-light);
  font-family: var(--vn-font-mono);
  font-size: 0.6875rem;
  letter-spacing: var(--vn-letter-spacing-label);
  text-transform: uppercase;
}

@media (max-width: 768px) {
  .qa-awgrid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ==========================================================================
   MATCHAI / INTELLIGENCE LAYER (.ais)
   ========================================================================== */

.ais {
  background: radial-gradient(1100px 620px at 50% -10%, rgba(22, 37, 59, 0.6), transparent 65%), var(--vn-color-dark);
  border-top: 1px solid rgba(var(--vn-color-primary-light-rgb), 0.25);
  border-bottom: var(--vn-border-on-dark);
  padding: 6rem 0;
}

.ais-top {
  text-align: center;
}

.ais-wordmark {
  color: #fff;
  display: inline-block;
  font-family: var(--vn-font-mono);
  font-size: var(--vn-text-l);
  font-weight: 700;
  letter-spacing: var(--vn-letter-spacing-label);
}

.ais-wordmark em {
  color: var(--vn-color-primary-light);
  font-style: normal;
}

.ais-line {
  color: #fff;
  font-family: var(--vn-font-display);
  font-size: var(--vn-h3);
  font-weight: 800;
  margin-top: 0.5rem;
}

.ip {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 2.5rem;
  align-items: center;
  margin-top: 3.5rem;
}

.sat b {
  color: #fff;
  display: block;
  font-family: var(--vn-font-mono);
  font-size: 2rem;
  font-weight: 800;
  line-height: 1;
}

.sat > span {
  color: var(--vn-color-base-light);
  display: block;
  font-size: 0.75rem;
  margin-top: 0.35rem;
}

.sat:first-child {
  margin-bottom: 1.5rem;
}

.ip-l {
  text-align: right;
}

.ip-r {
  text-align: left;
}

.ip-c {
  background: rgba(6, 11, 20, 0.6);
  border: 1px solid rgba(var(--vn-color-primary-light-rgb), 0.3);
  border-radius: var(--vn-radius-m);
  padding: 2rem 2.5rem;
  text-align: center;
}

.ais-counter {
  color: #fff;
  font-family: var(--vn-font-mono);
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1;
  color: var(--vn-color-primary-light);
}

.ais-cap {
  color: var(--vn-color-base-light);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--vn-font-mono);
  font-size: 0.75rem;
  letter-spacing: var(--vn-letter-spacing-label);
  margin-top: 0.5rem;
  text-transform: uppercase;
}

.pulse-dot {
  animation: pulse-glow 2s infinite;
  background: var(--vn-color-success);
  border-radius: 50%;
  height: 7px;
  width: 7px;
}

@keyframes pulse-glow {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.3; transform: scale(1.3); }
}

@media (max-width: 860px) {
  .ip {
    grid-template-columns: 1fr;
  }
  .ip-l, .ip-r {
    text-align: center;
  }
}

.ais-tier {
  margin-top: 4rem;
}

.ais-tk {
  color: var(--vn-color-primary-light);
  display: block;
  font-family: var(--vn-font-mono);
  font-size: var(--vn-text-xs);
  font-weight: 700;
  letter-spacing: var(--vn-letter-spacing-label);
  margin-bottom: 1rem;
  text-transform: uppercase;
}

.ais-pipe {
  border-top: var(--vn-border-on-dark);
  display: grid;
  grid-template-columns: 1fr auto 1.2fr auto 1fr;
  gap: 1rem;
  align-items: center;
  padding-top: 1.5rem;
}

.ais-pipe .st b {
  color: #fff;
  display: block;
  font-size: 1rem;
  font-weight: 700;
}

.ais-pipe .st span {
  color: var(--vn-color-base-light);
  display: block;
  font-size: 0.8125rem;
  line-height: 1.45;
  margin-top: 0.35rem;
}

.ais-pipe .arr {
  color: var(--vn-color-primary-light);
  font-size: 1.25rem;
  font-weight: 800;
}

@media (max-width: 768px) {
  .ais-pipe {
    grid-template-columns: 1fr;
  }
  .ais-pipe .arr {
    justify-self: center;
    transform: rotate(90deg);
  }
}

/* Simulated AI Dashboard Table (.ais-ui) */
.ais-ui {
  background: var(--vn-color-base-dark);
  border: var(--vn-border-on-dark);
  border-radius: var(--vn-radius-m);
  box-shadow: 0 30px 80px rgba(6, 11, 20, 0.5);
  overflow: hidden;
}

.ais-ui-chrome {
  align-items: center;
  border-bottom: var(--vn-border-on-dark);
  color: var(--vn-color-base-pale);
  display: flex;
  font-family: var(--vn-font-mono);
  font-size: var(--vn-text-xs);
  justify-content: space-between;
  letter-spacing: var(--vn-letter-spacing-label);
  padding: 0.75rem 1.5rem;
  text-transform: uppercase;
}

.ais-ui-live {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--vn-color-primary-light);
}

.ais-ui-cols {
  border-bottom: var(--vn-border-on-dark);
  color: var(--vn-color-base-light);
  display: grid;
  font-family: var(--vn-font-mono);
  font-size: var(--vn-text-xs);
  gap: 1rem;
  grid-template-columns: 1.3fr 1fr 1.1fr 0.7fr 0.6fr;
  letter-spacing: var(--vn-letter-spacing-label);
  padding: 0.75rem 1.5rem;
  text-transform: uppercase;
}

@keyframes row-fade-in {
  0% {
    opacity: 0;
    transform: translateY(-8px);
    background: rgba(16, 185, 129, 0.15);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
    background: transparent;
  }
}

.ais-ui-row-new {
  animation: row-fade-in 0.6s ease-out forwards;
}

.ais-ui-row {
  align-items: center;
  border-bottom: var(--vn-border-on-dark);
  color: var(--vn-color-base-pale);
  display: grid;
  font-size: var(--vn-text-s);
  gap: 1rem;
  grid-template-columns: 1.3fr 1fr 1.1fr 0.7fr 0.6fr;
  padding: 1rem 1.5rem;
  transition: all 0.3s ease;
}

.ais-ui-row .c {
  color: #fff;
  font-weight: 600;
}

.ais-ui-row .fit {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.ais-ui-row .fit i {
  background: linear-gradient(90deg, var(--vn-color-base-mid), var(--vn-color-primary-light));
  border-radius: var(--vn-radius-s);
  display: block;
  flex: 1;
  height: 5px;
  max-width: 90px;
}

.ais-ui-row .fit em {
  color: #fff;
  font-family: var(--vn-font-mono);
  font-style: normal;
  font-weight: 700;
}

.ais-ui-row .pr {
  color: #fff;
  font-family: var(--vn-font-mono);
  font-size: var(--vn-text-xs);
}

.ais-ui-row .pr b {
  font-weight: 700;
  margin-left: 0.35rem;
}

.ais-ui-row .ok {
  color: var(--vn-color-success);
}

.ais-ui-row .act {
  border: 1px solid rgba(var(--vn-color-primary-light-rgb), 0.45);
  border-radius: var(--vn-radius-s);
  color: var(--vn-color-primary-light);
  font-family: var(--vn-font-mono);
  font-size: var(--vn-text-xs);
  letter-spacing: var(--vn-letter-spacing-label);
  padding: 0.35rem 0;
  text-align: center;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.15s ease;
}

.ais-ui-row .act:hover {
  background: var(--vn-color-primary-light);
  color: #000000;
}

.ais-ui-foot {
  color: var(--vn-color-base-light);
  display: flex;
  font-family: var(--vn-font-mono);
  font-size: var(--vn-text-xs);
  justify-content: space-between;
  letter-spacing: var(--vn-letter-spacing-label);
  padding: 0.75rem 1.5rem;
  text-transform: uppercase;
}

@media (max-width: 768px) {
  .ais-ui-cols {
    display: none;
  }
  .ais-ui-row {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }
  .ais-ui-row [data-label]::before {
    content: attr(data-label) ": ";
    color: var(--vn-color-base-light);
    font-family: var(--vn-font-mono);
    font-size: var(--vn-text-xs);
    margin-right: auto;
    text-transform: uppercase;
  }
}

/* ==========================================================================
   TRUST SECTION (.trust-section)
   ========================================================================== */

.trust-section {
  background: var(--vn-color-base-dark);
  border-bottom: var(--vn-border-on-dark);
  padding: 6rem 0;
}

.ts-head {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2rem;
  align-items: end;
  margin-bottom: 3.5rem;
}

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

.ts-proof b {
  color: #fff;
  display: block;
  font-family: var(--vn-font-mono);
  font-size: 2.75rem;
  font-weight: 800;
  line-height: 1;
}

.ts-proof b em {
  color: var(--vn-color-primary-light);
  font-style: normal;
}

.ts-proof span {
  color: var(--vn-color-base-light);
  display: block;
  font-size: 0.8125rem;
  margin-top: 0.5rem;
}

.ts-board {
  background: rgba(255, 255, 255, 0.02);
  border: var(--vn-border-on-dark);
  border-radius: var(--vn-radius-m);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  overflow: hidden;
}

.ts-cell {
  border-right: var(--vn-border-on-dark);
  padding: 2.25rem 1.75rem;
}

.ts-cell:last-child {
  border-right: none;
}

.ts-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.ts-top span:first-child {
  color: var(--vn-color-base-light);
  font-family: var(--vn-font-mono);
  font-size: var(--vn-text-xs);
  letter-spacing: var(--vn-letter-spacing-label);
  text-transform: uppercase;
}

.ts-st {
  color: var(--vn-color-success);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--vn-font-mono);
  font-size: var(--vn-text-xs);
  letter-spacing: var(--vn-letter-spacing-label);
  text-transform: uppercase;
}

.ts-st i {
  background: var(--vn-color-success);
  border-radius: 50%;
  height: 6px;
  width: 6px;
}

.ts-cell b {
  color: #fff;
  display: block;
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.ts-cell p {
  color: var(--vn-color-gray-400);
  font-size: 0.8125rem;
  line-height: 1.5;
}

.ts-foot {
  display: flex;
  justify-content: space-between;
  font-family: var(--vn-font-mono);
  font-size: var(--vn-text-xs);
  letter-spacing: var(--vn-letter-spacing-label);
  margin-top: 1.5rem;
  padding: 0 4px;
  text-transform: uppercase;
  color: var(--vn-color-base-light);
}

.ts-foot span b {
  color: #fff;
}

@media (max-width: 900px) {
  .ts-board {
    grid-template-columns: repeat(2, 1fr);
  }
  .ts-cell:nth-child(2) {
    border-right: none;
  }
  .ts-cell:nth-child(-n+2) {
    border-bottom: var(--vn-border-on-dark);
  }
}

@media (max-width: 560px) {
  .ts-board {
    grid-template-columns: 1fr;
  }
  .ts-cell {
    border-right: none;
    border-bottom: var(--vn-border-on-dark);
  }
}

/* ==========================================================================
   THE CLOSE CTA BANNER (.close)
   ========================================================================== */

.close {
  background: linear-gradient(135deg, var(--vn-color-dark), var(--vn-color-base-dark));
  border-top: var(--vn-border-on-dark);
  border-bottom: var(--vn-border-on-dark);
  color: #fff;
  padding: 8rem 0;
  position: relative;
  text-align: center;
  overflow: hidden;
}

.close::after {
  content: "";
  position: absolute;
  top: 0;
  left: 15%;
  right: 15%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--vn-color-primary-light), transparent);
}

.close h2 {
  color: #fff;
  font-family: var(--vn-font-display);
  font-size: var(--vn-h2);
  font-weight: 800;
  margin-bottom: 0.75rem;
}

.close p {
  color: var(--vn-color-base-pale);
  font-size: var(--vn-text-l);
  margin: 0 auto 2.5rem;
  max-width: 680px;
}

/* ==========================================================================
   FOOTER (.vn-footer)
   ========================================================================== */

.vn-footer {
  background: var(--vn-color-base-dark);
  border-top: var(--vn-border-on-dark);
  color: var(--vn-color-white);
  padding: 5rem 0 3rem;
}

.vn-footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 3.5rem;
  margin-bottom: 4rem;
}

@media (max-width: 1024px) {
  .vn-footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .vn-footer-grid {
    grid-template-columns: 1fr;
  }
}

.vn-footer-brand h3 {
  font-family: var(--vn-font-display);
  font-size: 1.5rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 0.75rem;
}

.vn-footer-brand p {
  color: var(--vn-color-base-light);
  font-size: 0.8125rem;
  line-height: 1.6;
  max-width: 320px;
}

.vn-footer-nav h4, .vn-footer-newsletter h4 {
  color: var(--vn-color-white);
  display: block;
  font-family: var(--vn-font-mono);
  font-size: var(--vn-text-xs);
  font-weight: 700;
  letter-spacing: var(--vn-letter-spacing-label);
  margin-bottom: 1.25rem;
  text-transform: uppercase;
}

.vn-footer-nav ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.vn-footer-nav a, .vn-footer-nav button {
  color: var(--vn-color-base-pale);
  font-size: 0.8125rem;
  text-decoration: none;
  background: none;
  border: none;
  padding: 0;
  text-align: left;
  cursor: pointer;
  transition: color 0.2s ease;
}

.vn-footer-nav a:hover, .vn-footer-nav button:hover {
  color: var(--vn-color-primary-light);
}

.vn-footer-newsletter p {
  color: var(--vn-color-base-light);
  font-size: 0.8125rem;
  margin-bottom: 1rem;
}

.vn-footer-bottom {
  border-top: var(--vn-border-on-dark);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 2rem;
  color: var(--vn-color-base-light);
  font-size: 0.75rem;
}

.vn-footer-legal-links {
  display: flex;
  gap: 1.5rem;
}

.vn-footer-legal-links button {
  background: none;
  border: none;
  color: var(--vn-color-base-light);
  cursor: pointer;
  font-size: 0.75rem;
  transition: color 0.2s ease;
}

.vn-footer-legal-links button:hover {
  color: #fff;
}

/* Sliders & Range Inputs */
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 9999px;
  outline: none;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--vn-color-primary-light);
  box-shadow: 0 0 10px var(--vn-color-primary-light);
  cursor: pointer;
  transition: transform 0.15s ease;
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.25);
}

/* Scanner Line */
@keyframes scanner-shimmer {
  0% { transform: translateY(-100%); }
  100% { transform: translateY(200%); }
}

.scanner-line {
  animation: scanner-shimmer 2s ease-in-out infinite;
}