/* ==========================================================================
   MKUNZI GROUP — DESIGN SYSTEM & MASTER STYLESHEET
   Aesthetic: Ultra-Smooth, Soft-Curved Minimalist Luxury (Light Theme)
   Colors: Absolute Black (#000000) & Absolute White (#ffffff)
   Typography: Century Gothic (Body) + Outfit (Headlines)
   Fully Responsive (320px Mobile to 4K Displays) | Zero Overflow
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. CSS VARIABLES & DESIGN TOKENS
   -------------------------------------------------------------------------- */
:root {
  /* Stark Monochrome Palette */
  --black: #000000;
  --white: #ffffff;
  --gray-50: #fbfbfb;
  --gray-100: #f5f5f5;
  --gray-200: #eaeaea;
  --gray-300: #dcdcdc;
  --gray-400: #a8a8a8;
  --gray-500: #757575;
  --gray-600: #555555;
  --gray-700: #383838;
  --gray-800: #202020;
  --gray-900: #101010;

  /* Semantic Theme Tokens (Strict Light Theme) */
  --bg-primary: var(--white);
  --bg-surface: var(--gray-50);
  --bg-subtle: var(--gray-100);
  --bg-contrast: var(--black);

  --text-primary: var(--black);
  --text-secondary: var(--gray-700);
  --text-muted: var(--gray-500);
  --text-on-contrast: var(--white);

  --border-subtle: var(--gray-200);
  --border-strong: var(--black);
  --border-muted: var(--gray-300);

  /* Typography Stacks (Century Gothic Body + Outfit Headlines) */
  --font-display: 'Outfit', 'Century Gothic', 'CenturyGothic', 'AppleGothic', system-ui, sans-serif;
  --font-body: 'Century Gothic', 'CenturyGothic', 'AppleGothic', 'URW Gothic L', 'Avant Garde', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'Space Mono', Consolas, monospace;

  /* Soft & Smooth Organic Radius Scale */
  --radius-xs: 8px;
  --radius-sm: 14px;
  --radius-md: 20px;
  --radius-lg: 26px;
  --radius-xl: 32px;
  --radius-pill: 9999px;

  /* Spacing Scale */
  --container-max: 1380px;
  --container-narrow: 980px;
  --container-pad: clamp(1rem, 4vw, 3rem);
  --section-pad: clamp(3.5rem, 7vw, 7.5rem);

  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 0.65s cubic-bezier(0.16, 1, 0.3, 1);
}

/* --------------------------------------------------------------------------
   2. RESET & BASE ELEMENTS
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.65;
  letter-spacing: -0.01em;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  overflow-x: hidden;
  min-height: 100vh;
  position: relative;
  width: 100%;
}

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

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

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

button,
input,
textarea,
select {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  outline: none;
}

button {
  cursor: pointer;
}

ul,
ol {
  list-style: none;
}

/* --------------------------------------------------------------------------
   3. SCROLL PROGRESS BAR & UTILITIES
   -------------------------------------------------------------------------- */
#scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background-color: var(--black);
  z-index: 1000;
  transition: width 0.05s linear;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-pad);
  padding-right: var(--container-pad);
}

.container-narrow {
  max-width: var(--container-narrow);
}

.section {
  padding-top: var(--section-pad);
  padding-bottom: var(--section-pad);
  position: relative;
}

.section-divider {
  border-bottom: 1px solid var(--border-subtle);
}

.section-header {
  margin-bottom: clamp(2rem, 4.5vw, 4rem);
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-body);
  font-size: 0.78125rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
  padding: 0.4rem 1rem;
  background-color: var(--gray-100);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-pill);
}

.section-tag.dark {
  background-color: var(--gray-900);
  color: var(--white);
  border-color: var(--gray-800);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 4.5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.025em;
  margin-bottom: 0.85rem;
  word-break: break-word;
}

.section-subtitle {
  font-size: clamp(0.95rem, 1.4vw, 1.2rem);
  color: var(--text-secondary);
  max-width: 680px;
  line-height: 1.65;
}

/* --------------------------------------------------------------------------
   4. BUTTONS & INTERACTIVE PILLS
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  padding: 0.9rem 1.75rem;
  border-radius: var(--radius-pill);
  transition: all var(--transition-smooth);
  text-align: center;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
  max-width: 100%;
}

.btn svg {
  transition: transform var(--transition-fast);
  flex-shrink: 0;
}

.btn-primary {
  background-color: var(--black);
  color: var(--white);
  border: 1.5px solid var(--black);
}

.btn-primary:hover {
  background-color: var(--white);
  color: var(--black);
  border-color: var(--black);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
}

.btn-primary:hover svg {
  transform: translateX(4px);
}

.btn-secondary {
  background-color: var(--white);
  color: var(--black);
  border: 1.5px solid var(--border-strong);
}

.btn-secondary:hover {
  background-color: var(--black);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
}

.btn-secondary:hover svg {
  transform: translateX(4px);
}

.btn-white {
  background-color: var(--white);
  color: var(--black);
  border: 1.5px solid var(--white);
}

.btn-white:hover {
  background-color: transparent;
  color: var(--white);
  border-color: var(--white);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 0.55rem 1.15rem;
  font-size: 0.8125rem;
}

.btn-lg {
  padding: 1.05rem 2.2rem;
  font-size: 1rem;
}

/* --------------------------------------------------------------------------
   5. NAVIGATION / SITE HEADER
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  background-color: var(--white);
  border-bottom: 1px solid var(--border-subtle);
  z-index: 900;
  transition: transform var(--transition-smooth);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.brand-logo-wrap {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.brand-logo-svg {
  height: 44px;
  width: auto;
  object-fit: contain;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-secondary);
  position: relative;
  padding: 0.5rem 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0%;
  height: 2px;
  background-color: var(--black);
  border-radius: var(--radius-pill);
  transition: width var(--transition-fast);
}

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

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.mobile-toggle-btn {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-pill);
  background-color: var(--white);
}

.hamburger-line {
  width: 18px;
  height: 2px;
  background-color: var(--black);
  border-radius: var(--radius-pill);
  margin: 3px 0;
  transition: all var(--transition-fast);
}

/* Mobile Drawer Overlay */
.mobile-drawer {
  position: fixed;
  top: 0;
  right: -100%;
  width: 88%;
  max-width: 380px;
  height: 100vh;
  background-color: var(--white);
  border-left: 1px solid var(--border-subtle);
  border-top-left-radius: var(--radius-xl);
  border-bottom-left-radius: var(--radius-xl);
  z-index: 1000;
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: right var(--transition-smooth);
  box-shadow: -15px 0 40px rgba(0, 0, 0, 0.08);
}

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

.mobile-drawer-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.4);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-smooth);
}

.mobile-drawer-backdrop.is-open {
  opacity: 1;
  visibility: visible;
}

.mobile-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border-subtle);
}

.mobile-drawer-close {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-pill);
  font-size: 1.35rem;
}

.mobile-nav-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-top: 1.75rem;
}

.mobile-nav-link {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--black);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.35rem 0;
}

.mobile-nav-link:hover {
  transform: translateX(4px);
}

/* --------------------------------------------------------------------------
   6. HERO SECTION
   -------------------------------------------------------------------------- */
.hero-section {
  padding-top: clamp(2.5rem, 5vw, 5.5rem);
  padding-bottom: clamp(3rem, 6vw, 6rem);
  border-bottom: 1px solid var(--border-subtle);
  position: relative;
  background-color: var(--white);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(2rem, 4vw, 4.5rem);
  align-items: center;
}

.hero-badge-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 1.5rem;
}

.live-indicator {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-body);
  font-size: 0.78125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.4rem 0.95rem;
  background-color: var(--black);
  color: var(--white);
  border-radius: var(--radius-pill);
}

.live-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: #22c55e;
}

.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 5.5vw, 4.5rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
  word-break: break-word;
}

.hero-headline .highlight-underline {
  position: relative;
  display: inline-block;
}

.hero-headline .highlight-underline::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 4px;
  width: 100%;
  height: 6px;
  background-color: var(--black);
  border-radius: var(--radius-pill);
  z-index: -1;
  opacity: 0.12;
}

.hero-description {
  font-size: clamp(1.05rem, 1.5vw, 1.25rem);
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 2rem;
  max-width: 620px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.85rem;
  margin-bottom: 2.5rem;
}

.hero-stats-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--border-subtle);
}

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

.hero-stat-number {
  font-family: var(--font-display);
  font-size: clamp(1.45rem, 2.2vw, 2.15rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--black);
  line-height: 1.1;
}

.hero-stat-label {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

/* Hero Visual Box */
.hero-visual-box {
  background-color: var(--gray-50);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: clamp(1.5rem, 3vw, 2rem);
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.03);
}

.hero-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 1rem;
}

.hero-card-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.trinity-mini-preview {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.trinity-mini-pill {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.15rem;
  background-color: var(--white);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: all var(--transition-smooth);
}

.trinity-mini-pill:hover {
  border-color: var(--black);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.04);
}

.trinity-mini-pill-left {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.pill-index {
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 800;
  color: var(--text-muted);
}

.pill-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
}

.pill-role {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-top: 0.15rem;
}

/* --------------------------------------------------------------------------
   7. THE TRINITY VISUALIZER (MOBILE-OPTIMIZED)
   -------------------------------------------------------------------------- */
.trinity-section {
  background-color: var(--white);
  position: relative;
  overflow: hidden;
}

.trinity-layout-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(1.75rem, 4vw, 4rem);
  align-items: center;
}

.trinity-canvas-wrapper {
  background-color: var(--gray-50);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  position: relative;
  min-height: 320px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: clamp(1rem, 2.5vw, 1.75rem);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.03);
  overflow: hidden;
  width: 100%;
}

#trinity-canvas {
  width: 100%;
  max-width: 100%;
  height: auto;
  display: block;
}

.trinity-canvas-dock {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  border-top: 1px solid var(--border-subtle);
  margin-top: 0.85rem;
}

.canvas-status {
  font-size: 0.78125rem;
  font-weight: 600;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.canvas-status-dot {
  width: 7px;
  height: 7px;
  background-color: var(--black);
  border-radius: 50%;
  animation: pulseDot 2s infinite ease-in-out;
}

@keyframes pulseDot {

  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }

  50% {
    opacity: 0.3;
    transform: scale(0.85);
  }
}

.trinity-selector-group {
  display: flex;
  gap: 0.4rem;
}

.node-btn {
  font-family: var(--font-body);
  font-size: 0.78125rem;
  font-weight: 700;
  padding: 0.45rem 0.85rem;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-pill);
  background-color: var(--white);
  transition: all var(--transition-smooth);
}

.node-btn.is-active,
.node-btn:hover {
  background-color: var(--black);
  color: var(--white);
  border-color: var(--black);
}

/* Trinity Info HUD */
.trinity-hud {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  width: 100%;
}

.trinity-active-card {
  background-color: var(--white);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: clamp(1.5rem, 3vw, 2.5rem);
  position: relative;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.04);
  transition: all var(--transition-smooth);
  width: 100%;
}

.trinity-node-number {
  font-family: var(--font-body);
  font-size: 0.78125rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 0.45rem;
}

.trinity-node-heading {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.5vw, 2.15rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  margin-bottom: 0.45rem;
}

.trinity-node-tagline {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 1.15rem;
  display: inline-block;
  border-bottom: 1.5px solid var(--border-subtle);
  padding-bottom: 0.25rem;
}

.trinity-node-text {
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.trinity-flow-specs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.85rem;
  padding: 1.15rem;
  background-color: var(--gray-50);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  margin-bottom: 1.5rem;
}

.flow-spec-col h5 {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 700;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}

.flow-spec-col p {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--black);
}

/* --------------------------------------------------------------------------
   8. ECOSYSTEM SECTION (THE 3 PORTALS SHOWCASE)
   -------------------------------------------------------------------------- */
.ecosystem-section {
  background-color: var(--gray-50);
  border-bottom: 1px solid var(--border-subtle);
}

.ecosystem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.portal-card {
  background-color: var(--white);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: clamp(1.5rem, 2.5vw, 2.25rem);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  transition: all var(--transition-smooth);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.02);
}

.portal-card:hover {
  border-color: var(--black);
  transform: translateY(-4px);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.06);
}

.portal-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}

.portal-number {
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 800;
  padding: 0.3rem 0.75rem;
  background-color: var(--gray-100);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-pill);
}

.portal-domain-badge {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.portal-title {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -0.025em;
  margin-bottom: 0.35rem;
}

.portal-tagline {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 1.25rem;
}

.portal-simple-box {
  background-color: var(--gray-50);
  border: 1px solid var(--border-subtle);
  border-left: 3px solid var(--black);
  border-radius: var(--radius-sm);
  padding: 1rem 1.15rem;
  margin-bottom: 1.5rem;
}

.portal-simple-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 800;
  color: var(--text-muted);
  display: block;
  margin-bottom: 0.25rem;
}

.portal-simple-desc {
  font-size: 0.9rem;
  line-height: 1.55;
  color: var(--black);
  font-weight: 500;
}

.portal-features-list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin-bottom: 2rem;
}

.portal-feature-item {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.portal-feature-item svg {
  flex-shrink: 0;
  width: 14px;
  height: 14px;
}

.portal-footer {
  padding-top: 1.25rem;
  border-top: 1px solid var(--border-subtle);
}

/* --------------------------------------------------------------------------
   9. THE WORKFLOW LOOP SECTION ("HOW THE 3 WORK TOGETHER")
   -------------------------------------------------------------------------- */
.workflow-section {
  background-color: var(--white);
  border-bottom: 1px solid var(--border-subtle);
}

.loop-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  position: relative;
}

.loop-step-card {
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: clamp(1.5rem, 2.5vw, 2rem);
  background-color: var(--white);
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all var(--transition-smooth);
}

.loop-step-card:hover {
  border-color: var(--black);
  background-color: var(--gray-50);
  transform: translateY(-3px);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.04);
}

.loop-step-number {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
  display: inline-block;
  border-bottom: 2px solid var(--black);
  padding-bottom: 0.25rem;
}

.loop-step-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.65rem;
}

.loop-step-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.loop-step-entity {
  margin-top: 1.5rem;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.4rem 0.75rem;
  background-color: var(--gray-100);
  border-radius: var(--radius-pill);
  display: inline-block;
}

/* --------------------------------------------------------------------------
   10. LEADERSHIP & FOUNDER SECTION
   -------------------------------------------------------------------------- */
.founder-section {
  background-color: var(--white);
  border-bottom: 1px solid var(--border-subtle);
}

.founder-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(2rem, 4vw, 4.5rem);
  align-items: center;
}

.founder-image-wrapper {
  position: relative;
  background-color: var(--gray-100);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.05);
}

.founder-portrait {
  width: 100%;
  height: 480px;
  object-fit: cover;
  border-top-left-radius: var(--radius-lg);
  border-top-right-radius: var(--radius-lg);
  filter: grayscale(100%) contrast(105%);
  transition: filter var(--transition-slow);
}

.founder-image-wrapper:hover .founder-portrait {
  filter: grayscale(0%) contrast(100%);
}

.founder-caption {
  padding: 1.15rem 1.35rem;
  background-color: var(--white);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.founder-caption-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
}

.founder-caption-role {
  font-size: 0.78125rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
}

.founder-bio {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.founder-quote {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2vw, 1.75rem);
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.02em;
  color: var(--black);
  border-left: 3px solid var(--black);
  padding-left: 1.25rem;
  margin-bottom: 0.35rem;
}

.founder-bio p {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.founder-credentials {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 0.75rem;
}

.credential-badge {
  font-size: 0.78125rem;
  font-weight: 700;
  padding: 0.5rem 1rem;
  background-color: var(--gray-50);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-pill);
}

/* --------------------------------------------------------------------------
   11. IMPACT METRICS
   -------------------------------------------------------------------------- */
.metrics-section {
  background-color: var(--black);
  color: var(--white);
  padding-top: clamp(3rem, 5vw, 5.5rem);
  padding-bottom: clamp(3rem, 5vw, 5.5rem);
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.75rem;
}

.metric-item {
  border-left: 1px solid var(--gray-800);
  padding-left: 1.5rem;
  display: flex;
  flex-direction: column;
}

.metric-number {
  font-family: var(--font-display);
  font-size: clamp(2.35rem, 4vw, 3.75rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 0.45rem;
}

.metric-label {
  font-size: 0.78125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--gray-400);
}

/* --------------------------------------------------------------------------
   12. STARK BLACK CTA BANNER
   -------------------------------------------------------------------------- */
.cta-section {
  background-color: var(--white);
  padding: clamp(2.5rem, 5vw, 5rem) 0;
}

.cta-box {
  background-color: var(--black);
  color: var(--white);
  padding: clamp(2rem, 4vw, 4rem);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.12);
}

.cta-title {
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 3.5vw, 3.15rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.2;
  margin-bottom: 0.85rem;
  max-width: 800px;
}

.cta-desc {
  font-size: clamp(0.95rem, 1.4vw, 1.15rem);
  color: var(--gray-400);
  max-width: 600px;
  line-height: 1.6;
  margin-bottom: 2rem;
}

/* --------------------------------------------------------------------------
   13. SITE FOOTER
   -------------------------------------------------------------------------- */
.site-footer {
  background-color: var(--white);
  border-top: 1px solid var(--border-subtle);
  padding-top: clamp(3rem, 5vw, 4.5rem);
  padding-bottom: 2rem;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr 0.75fr 0.75fr;
  gap: clamp(1.75rem, 3.5vw, 3.5rem);
  padding-bottom: 3rem;
  border-bottom: 1px solid var(--border-subtle);
}

.footer-brand-info {
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
}

.footer-logo-svg {
  height: 44px;
  width: auto;
  object-fit: contain;
}

.footer-desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 340px;
}

.footer-social-links {
  display: flex;
  gap: 0.65rem;
}

.footer-social-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-pill);
  color: var(--black);
  transition: all var(--transition-smooth);
}

.footer-social-btn:hover {
  background-color: var(--black);
  color: var(--white);
  border-color: var(--black);
  transform: translateY(-2px);
}

.footer-col h4 {
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 1.25rem;
}

.footer-nav-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-nav-link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  padding-top: 1.75rem;
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.footer-copyright a {
  text-decoration: underline;
  color: var(--black);
}

/* --------------------------------------------------------------------------
   14. MODAL DIALOG (CONNECT & PARTNERSHIP)
   -------------------------------------------------------------------------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 1100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-smooth);
}

.modal-overlay.is-active {
  opacity: 1;
  visibility: visible;
}

.modal-card {
  background-color: var(--white);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 560px;
  max-height: 90vh;
  overflow-y: auto;
  padding: clamp(1.5rem, 3.5vw, 2.5rem);
  position: relative;
  transform: translateY(20px);
  transition: transform var(--transition-smooth);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.12);
}

.modal-overlay.is-active .modal-card {
  transform: translateY(0);
}

.modal-close-btn {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-pill);
  font-size: 1.25rem;
  line-height: 1;
  transition: all var(--transition-smooth);
}

.modal-close-btn:hover {
  background-color: var(--black);
  color: var(--white);
}

.modal-title {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 0.45rem;
}

.modal-desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  line-height: 1.55;
}

.form-group {
  margin-bottom: 1.15rem;
}

.form-label {
  display: block;
  font-size: 0.78125rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 700;
  margin-bottom: 0.35rem;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0.8rem 1rem;
  border: 1.5px solid var(--border-subtle);
  border-radius: var(--radius-md);
  background-color: var(--white);
  font-size: 0.9375rem;
  color: var(--black);
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--black);
  box-shadow: 0 0 0 2px rgba(0, 0, 0, 0.05);
}

.form-textarea {
  resize: vertical;
  min-height: 90px;
}

.modal-success-state {
  display: none;
  text-align: center;
  padding: 1.75rem 0;
}

.modal-success-state.is-visible {
  display: block;
}

.success-icon {
  width: 54px;
  height: 54px;
  margin: 0 auto 1.15rem;
  border: 2px solid var(--black);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.45rem;
}

/* --------------------------------------------------------------------------
   15. COMPREHENSIVE RESPONSIVE MEDIA QUERIES
   -------------------------------------------------------------------------- */
@media (max-width: 1100px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .trinity-layout-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

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

  .loop-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .founder-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .founder-portrait {
    height: 380px;
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 820px) {

  .nav-links,
  .header-actions .btn-primary {
    display: none;
  }

  .mobile-toggle-btn {
    display: flex;
  }

  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem 1.25rem;
  }
}

@media (max-width: 600px) {
  :root {
    --container-pad: 1.15rem;
  }

  .header-inner {
    height: 66px;
  }

  .brand-logo-svg {
    height: 36px;
  }

  /* Trinity Dock Stacking on Mobile */
  .trinity-canvas-wrapper {
    padding: 1.25rem 0.65rem;
  }

  .trinity-canvas-dock {
    flex-direction: column;
    align-items: stretch;
    gap: 0.85rem;
    padding-top: 0.85rem;
    margin-top: 0.65rem;
  }

  .canvas-status {
    justify-content: center;
    font-size: 0.75rem;
  }

  .trinity-selector-group {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.35rem;
    width: 100%;
  }

  .node-btn {
    padding: 0.55rem 0.25rem;
    font-size: 0.72rem;
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    width: 100%;
  }

  .trinity-flow-specs {
    grid-template-columns: 1fr;
    gap: 0.75rem;
    padding: 1rem;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .hero-stats-strip {
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
    padding-top: 1.5rem;
  }

  .hero-stat-number {
    font-size: 1.35rem;
  }

  .hero-stat-label {
    font-size: 0.68rem;
  }

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

  .founder-portrait {
    height: 300px;
  }

  .footer-top {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 380px) {
  :root {
    --container-pad: 0.95rem;
  }

  .hero-headline {
    font-size: 2rem;
  }

  .node-btn {
    font-size: 0.68rem;
    padding: 0.5rem 0.15rem;
  }

  .hero-stats-strip {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

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