/* =============================================================
   NexxusIQ — Enterprise Intelligence & Execution Platform
   styles.css — Design System & Page Styles
   ============================================================= */

/* ---------------------------------------------------------------
   1. CSS Variables
--------------------------------------------------------------- */
:root {
  /* Brand Colors */
  --color-navy-deep:    #081226;
  --color-navy-dark:    #102A56;
  --color-blue-primary: #0097b2;
  --color-blue-electric:#33bdd1;
  --color-teal:         #0EA5A8;
  --color-purple:       #6941C6;
  --color-green:        #16805B;

  /* Backgrounds */
  --color-bg-light:     #F5F7FB;
  --color-bg-mid:       #EDF0F7;
  --color-white:        #FFFFFF;

  /* Text */
  --color-text-dark:    #182230;
  --color-text-body:    #344054;
  --color-text-muted:   #596579;
  --color-text-subtle:  #8899AA;

  /* UI */
  --color-border:       #D8DFEA;
  --color-border-mid:   #C3CFDE;

  /* Spacing scale */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Radius */
  --radius-sm:  6px;
  --radius-md:  10px;
  --radius-lg:  14px;
  --radius-xl:  20px;
  --radius-full:9999px;

  /* Shadows */
  --shadow-xs:  0 1px 2px rgba(8, 18, 38, 0.06);
  --shadow-sm:  0 1px 4px rgba(8, 18, 38, 0.08), 0 1px 2px rgba(8, 18, 38, 0.04);
  --shadow-md:  0 4px 16px rgba(8, 18, 38, 0.10), 0 2px 6px rgba(8, 18, 38, 0.04);
  --shadow-lg:  0 8px 32px rgba(8, 18, 38, 0.12), 0 4px 12px rgba(8, 18, 38, 0.06);

  /* Layout */
  --max-width:        1200px;
  --max-width-narrow: 800px;
  --max-width-text:   640px;
  --nav-height:       64px;

  /* Typography */
  --font-sans: 'Inter', ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
               'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', ui-monospace, monospace;

  /* Transitions */
  --transition-fast:   150ms ease;
  --transition-base:   250ms ease;
  --transition-slow:   400ms ease;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

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

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text-body);
  background: var(--color-white);
  overflow-x: hidden;
}

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

a {
  color: var(--color-blue-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}
a:hover { color: var(--color-blue-electric); }

ul, ol { list-style: none; }

/* ---------------------------------------------------------------
   3. Typography
--------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-sans);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text-dark);
}

h1 { font-size: clamp(2rem, 4vw, 3rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.625rem, 3vw, 2.25rem); letter-spacing: -0.02em; }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); letter-spacing: -0.01em; }
h4 { font-size: 1.125rem; }
h5 { font-size: 1rem; }

p {
  color: var(--color-text-body);
  line-height: 1.7;
}

.text-muted { color: var(--color-text-muted); }
.text-subtle { color: var(--color-text-subtle); }
.text-large { font-size: 1.125rem; line-height: 1.65; }
.text-small { font-size: 0.875rem; }
.text-xs    { font-size: 0.75rem; }

/* ---------------------------------------------------------------
   4. Layout
--------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.container--narrow {
  max-width: var(--max-width-narrow);
  margin: 0 auto;
}

section {
  padding: var(--space-20) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-12);
}

.section-header h2 {
  margin-bottom: var(--space-4);
}

.section-header p {
  max-width: var(--max-width-text);
  margin: 0 auto;
  font-size: 1.075rem;
  color: var(--color-text-muted);
}

/* ---------------------------------------------------------------
   5. Buttons
--------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.625rem 1.25rem;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  white-space: nowrap;
}

.btn--primary {
  background: var(--color-blue-primary);
  color: var(--color-white);
  border-color: var(--color-blue-primary);
}
.btn--primary:hover {
  background: #E8826A;
  border-color: #E8826A;
  color: var(--color-white);
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(232, 130, 106, 0.35);
}

.btn--outline {
  background: transparent;
  color: var(--color-blue-primary);
  border-color: var(--color-blue-primary);
}
.btn--outline:hover {
  background: #E8826A;
  border-color: #E8826A;
  color: var(--color-white);
  transform: translateY(-1px);
}

.btn--outline-light {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255,255,255,0.5);
}
.btn--outline-light:hover {
  background: rgba(255,255,255,0.12);
  border-color: rgba(255,255,255,0.8);
  color: var(--color-white);
}

.btn--large {
  padding: 0.875rem 1.75rem;
  font-size: 1rem;
  border-radius: var(--radius-lg);
}

.btn-group {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  align-items: center;
}

/* ---------------------------------------------------------------
   6. Badges / Labels
--------------------------------------------------------------- */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.625rem;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-radius: var(--radius-full);
  line-height: 1;
}

.badge--blue {
  background: #E0F5F8;
  color: var(--color-blue-primary);
}
.badge--teal {
  background: #E6F7F7;
  color: var(--color-teal);
}
.badge--purple {
  background: #F0EBFB;
  color: var(--color-purple);
}
.badge--green {
  background: #E7F5F0;
  color: var(--color-green);
}
.badge--orange {
  background: #FEF3E9;
  color: #C4550A;
}
.badge--gray {
  background: var(--color-bg-mid);
  color: var(--color-text-muted);
}

/* ---------------------------------------------------------------
   7. Cards
--------------------------------------------------------------- */
.card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.card-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
  flex-shrink: 0;
}

.card-icon--blue   { background: #E0F5F8; color: var(--color-blue-primary); }
.card-icon--teal   { background: #E6F7F7; color: var(--color-teal); }
.card-icon--purple { background: #F0EBFB; color: var(--color-purple); }
.card-icon--green  { background: #E7F5F0; color: var(--color-green); }
.card-icon--navy   { background: #E8ECF4; color: var(--color-navy-dark); }

.card h3, .card h4 {
  margin-bottom: var(--space-2);
}

.card p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ---------------------------------------------------------------
   8. Navigation
--------------------------------------------------------------- */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-height);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition-base);
}

#navbar.scrolled {
  box-shadow: var(--shadow-sm);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
}

/* Wordmark */
.nav-wordmark {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  flex-shrink: 0;
}

.nav-logo-mark {
  width: auto;
  height: 36px;
  flex-shrink: 0;
}

.nav-wordmark-text {
  font-size: 1.0625rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--color-navy-deep);
  line-height: 1;
}

/* Nav links */
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  list-style: none;
}

.nav-links a {
  display: block;
  padding: 0.375rem 0.75rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-muted);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-blue-primary);
  background: #E0F5F8;
}

/* Nav CTA */
.nav-cta {
  flex-shrink: 0;
}

/* Hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
  border-radius: var(--radius-sm);
}

.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text-dark);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
}

.nav-hamburger[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-hamburger[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
.nav-hamburger[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile nav drawer */
.nav-mobile {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-4) var(--space-6) var(--space-6);
  box-shadow: var(--shadow-md);
  z-index: 99;
}

.nav-mobile.is-open {
  display: block;
}

.nav-mobile-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  margin-bottom: var(--space-4);
}

.nav-mobile-links a {
  display: block;
  padding: 0.625rem 0.75rem;
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text-body);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.nav-mobile-links a:hover {
  background: var(--color-bg-light);
  color: var(--color-blue-primary);
}

/* ---------------------------------------------------------------
   9. Hero Section
--------------------------------------------------------------- */
#hero {
  background: linear-gradient(155deg, var(--color-navy-deep) 0%, #0d1e3d 50%, #102A56 100%);
  padding: calc(var(--nav-height) + var(--space-20)) 0 var(--space-20);
  position: relative;
  overflow: hidden;
}

/* Subtle grid background */
#hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(36, 87, 214, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(36, 87, 214, 0.08) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content {}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
  padding: 0.375rem 0.875rem;
  background: rgba(36, 87, 214, 0.2);
  border: 1px solid rgba(40, 165, 255, 0.3);
  border-radius: var(--radius-full);
  color: var(--color-blue-electric);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.hero-eyebrow-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-blue-electric);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.4; }
}

@media (prefers-reduced-motion: reduce) {
  .hero-eyebrow-dot { animation: none; }
}

.hero-content h1 {
  color: var(--color-white);
  margin-bottom: var(--space-5);
  font-size: clamp(2rem, 3.5vw, 2.875rem);
}

.hero-content h1 em {
  font-style: normal;
  color: var(--color-blue-electric);
}

.hero-subhead {
  color: rgba(255,255,255,0.75);
  font-size: 1.0625rem;
  line-height: 1.7;
  margin-bottom: var(--space-8);
  max-width: 520px;
}

.hero-ctas {
  margin-bottom: var(--space-8);
}

.hero-trust {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: rgba(255,255,255,0.5);
  font-size: 0.8125rem;
}

.hero-trust-icon {
  color: var(--color-green);
  flex-shrink: 0;
}

/* Hero diagram */
.hero-diagram {
  display: flex;
  justify-content: center;
  align-items: center;
}

.diagram-flow {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
  width: 100%;
  max-width: 340px;
}

.diagram-node {
  width: 100%;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-5);
  text-align: center;
  position: relative;
  transition: border-color var(--transition-base);
}

.diagram-node:hover {
  border-color: rgba(40, 165, 255, 0.4);
  background: rgba(255,255,255,0.07);
}

.diagram-node .node-label {
  display: block;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-white);
  line-height: 1.3;
}

.diagram-node .node-sub {
  display: block;
  font-size: 0.75rem;
  color: rgba(255,255,255,0.45);
  margin-top: 2px;
}

.diagram-node--platform {
  background: linear-gradient(135deg, rgba(36,87,214,0.3), rgba(40,165,255,0.15));
  border-color: rgba(40, 165, 255, 0.45);
}

.diagram-node--platform .node-label {
  color: var(--color-blue-electric);
  font-size: 1rem;
  letter-spacing: 0.04em;
}

.diagram-node--outputs {
  border-color: rgba(14, 165, 168, 0.35);
  background: rgba(14, 165, 168, 0.06);
}

.diagram-node--outputs .node-label {
  font-size: 0.875rem;
}

.diagram-connector {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 2px 0;
}

.connector-line {
  width: 1.5px;
  height: 18px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.15), rgba(40,165,255,0.4));
}

.connector-arrow {
  width: 18px;
  height: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(40, 165, 255, 0.7);
}

.connector-arrow svg {
  width: 12px;
  height: 12px;
}

/* ---------------------------------------------------------------
   10. Ecosystem Section
--------------------------------------------------------------- */
#ecosystem {
  background: var(--color-bg-light);
}

.ecosystem-intro {
  text-align: center;
  margin-bottom: var(--space-12);
}

.ecosystem-intro h2 { margin-bottom: var(--space-4); }
.ecosystem-intro p {
  color: var(--color-text-muted);
  max-width: 540px;
  margin: 0 auto;
}

.ecosystem-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
}

.ecosystem-column {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
}

.ecosystem-column-header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border);
}

.ecosystem-column-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.ecosystem-column-title {
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-dark);
}

.ecosystem-items {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.ecosystem-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
}

.ecosystem-item:hover {
  background: var(--color-bg-light);
}

.ecosystem-item-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}

.ecosystem-item-name {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-body);
}

.ecosystem-item-name.vendor {
  font-weight: 600;
  color: var(--color-text-dark);
}

.ecosystem-footer {
  text-align: center;
  margin-top: var(--space-8);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.ecosystem-plus {
  color: var(--color-text-subtle);
  font-size: 0.875rem;
}

/* ---------------------------------------------------------------
   11. Platform Services Section
--------------------------------------------------------------- */
#platform {
  background: var(--color-white);
}

.platform-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

.platform-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: all var(--transition-base);
}

.platform-card:hover {
  border-color: var(--color-blue-primary);
  box-shadow: 0 0 0 3px rgba(36, 87, 214, 0.06), var(--shadow-md);
  transform: translateY(-2px);
}

.platform-card-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: #E0F5F8;
  color: var(--color-blue-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
}

.platform-card h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  margin-bottom: var(--space-2);
}

.platform-card p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ---------------------------------------------------------------
   12. Capability Packs Section
--------------------------------------------------------------- */
#capabilities {
  background: var(--color-bg-light);
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}

.capability-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  transition: all var(--transition-base);
  position: relative;
}

.capability-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.capability-card--featured {
  border-color: var(--color-blue-primary);
  background: linear-gradient(145deg, #FAFBFF 0%, var(--color-white) 100%);
}

.capability-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-3);
}

.capability-card-title {
  font-size: 1.1875rem;
  font-weight: 700;
  color: var(--color-text-dark);
}

.capability-card-desc {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.capability-features {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.capability-feature {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.875rem;
  color: var(--color-text-body);
}

.capability-feature-check {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #E7F5F0;
  color: var(--color-green);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.capability-card--wide {
  grid-column: 1 / -1;
  flex-direction: row;
  align-items: center;
  gap: var(--space-8);
}

.capability-card--wide .capability-features {
  flex-direction: row;
  flex-wrap: wrap;
  gap: var(--space-3);
}

/* ---------------------------------------------------------------
   13. Enterprise Analytics Spotlight
--------------------------------------------------------------- */
#analytics-spotlight {
  background: var(--color-white);
  overflow: hidden;
}

.spotlight-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: start;
}

.spotlight-content h2 {
  margin-bottom: var(--space-5);
}

.spotlight-content p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
}

.spotlight-use-cases {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
}

.spotlight-use-case {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--color-bg-light);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  color: var(--color-text-body);
  transition: background var(--transition-fast);
}

.spotlight-use-case:hover {
  background: var(--color-bg-mid);
}

.spotlight-use-case-icon {
  color: var(--color-blue-primary);
  flex-shrink: 0;
}

.spotlight-statement {
  background: linear-gradient(135deg, #E0F5F8, #F0EBFB);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-navy-dark);
  line-height: 1.5;
}

/* Spotlight flow diagram */
.spotlight-flow {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
}

.spotlight-flow-group {
  width: 100%;
}

.spotlight-flow-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-subtle);
  text-align: center;
  margin-bottom: var(--space-3);
}

.spotlight-nodes-row {
  display: flex;
  gap: var(--space-2);
  justify-content: center;
  flex-wrap: wrap;
}

.spotlight-node {
  flex: 1;
  min-width: 100px;
  padding: var(--space-3) var(--space-4);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  text-align: center;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-dark);
  box-shadow: var(--shadow-xs);
}

.spotlight-node--integration { border-color: #0EA5A8; color: #0EA5A8; }
.spotlight-node--data        { border-color: var(--color-blue-primary); color: var(--color-blue-primary); }
.spotlight-node--viz         { border-color: var(--color-purple); color: var(--color-purple); }

.spotlight-platform-node {
  width: 100%;
  padding: var(--space-4) var(--space-5);
  background: linear-gradient(135deg, #E0F5F8, #F0EBFB);
  border: 1.5px solid var(--color-blue-primary);
  border-radius: var(--radius-lg);
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.spotlight-platform-node .platform-name {
  font-size: 1rem;
  font-weight: 800;
  color: var(--color-blue-primary);
  letter-spacing: 0.04em;
}

.spotlight-platform-node .platform-caps {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

.spotlight-connector {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--space-2) 0;
}

.spotlight-connector-line {
  width: 1.5px;
  height: 16px;
  background: linear-gradient(to bottom, var(--color-border), var(--color-blue-primary));
}

.spotlight-connector-arrow {
  width: 16px;
  height: 16px;
  color: var(--color-blue-primary);
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ---------------------------------------------------------------
   14. Architecture Section
--------------------------------------------------------------- */
#architecture {
  background: var(--color-bg-light);
}

.arch-statement {
  text-align: center;
  color: var(--color-text-muted);
  max-width: var(--max-width-text);
  margin: 0 auto var(--space-12);
  font-size: 1.05rem;
}

.arch-bands {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  max-width: 960px;
  margin: 0 auto;
}

.arch-band {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-6) var(--space-8);
  position: relative;
}

.arch-band--platform {
  border-color: var(--color-blue-primary);
  background: linear-gradient(135deg, #FAFBFF 0%, var(--color-white) 100%);
}

.arch-band--aws {
  border-color: var(--color-teal);
  background: linear-gradient(135deg, #FAFFFE 0%, var(--color-white) 100%);
}

.arch-band-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.arch-band-label--gray   { color: var(--color-text-muted); }
.arch-band-label--blue   { color: var(--color-blue-primary); }
.arch-band-label--teal   { color: var(--color-teal); }

.arch-label-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.arch-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.arch-tag {
  padding: 0.3125rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 500;
  border: 1px solid var(--color-border);
  background: var(--color-white);
  color: var(--color-text-body);
  transition: all var(--transition-fast);
}

.arch-band--platform .arch-tag {
  border-color: rgba(36, 87, 214, 0.25);
  color: var(--color-navy-dark);
}

.arch-band--aws .arch-tag {
  border-color: rgba(14, 165, 168, 0.25);
  color: var(--color-text-body);
}

.arch-note {
  text-align: center;
  margin-top: var(--space-8);
  padding: var(--space-5);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
}

.arch-note p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

.arch-note strong {
  color: var(--color-text-dark);
}

.arch-band-connector {
  display: flex;
  justify-content: center;
  padding: var(--space-1) 0;
  color: var(--color-text-subtle);
}

/* ---------------------------------------------------------------
   15. Security Section
--------------------------------------------------------------- */
#security {
  background: var(--color-navy-deep);
  padding: var(--space-24) 0;
}

#security .section-header h2 {
  color: var(--color-white);
}

#security .section-header p {
  color: rgba(255,255,255,0.6);
}

.security-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-10);
}

.security-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: all var(--transition-base);
}

.security-card:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(40, 165, 255, 0.25);
  transform: translateY(-2px);
}

.security-card-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: rgba(36, 87, 214, 0.2);
  color: var(--color-blue-electric);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
}

.security-card h3 {
  color: var(--color-white);
  font-size: 1.0625rem;
  margin-bottom: var(--space-2);
}

.security-card p {
  color: rgba(255,255,255,0.6);
  font-size: 0.9rem;
  line-height: 1.6;
}

.security-statement {
  text-align: center;
  padding: var(--space-6);
  background: rgba(36, 87, 214, 0.12);
  border: 1px solid rgba(40, 165, 255, 0.2);
  border-radius: var(--radius-lg);
  max-width: 700px;
  margin: 0 auto;
}

.security-statement p {
  color: rgba(255,255,255,0.8);
  font-size: 1rem;
  line-height: 1.65;
}

.security-statement strong {
  color: var(--color-white);
}

/* ---------------------------------------------------------------
   16. User Experience Section
--------------------------------------------------------------- */
#experience {
  background: var(--color-white);
}

.experience-intro {
  text-align: center;
  margin-bottom: var(--space-10);
}
.experience-intro h2 { margin-bottom: var(--space-4); }
.experience-intro p {
  color: var(--color-text-muted);
  max-width: 540px;
  margin: 0 auto;
}

.experience-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}

.experience-card {
  background: var(--color-bg-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  transition: all var(--transition-base);
}

.experience-card:hover {
  background: var(--color-white);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.experience-card-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
}

.experience-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: var(--space-3);
}

.experience-items {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.experience-item {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.experience-item::before {
  content: '';
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--color-border-mid);
  flex-shrink: 0;
}

.experience-footnote {
  text-align: center;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto;
  padding: var(--space-5);
  background: var(--color-bg-light);
  border-radius: var(--radius-lg);
}

/* ---------------------------------------------------------------
   17. Skuiddy Preview Section
--------------------------------------------------------------- */
#skuiddy {
  background: var(--color-bg-light);
  padding: var(--space-16) 0;
}

.skuiddy-inner {
  background: var(--color-white);
  border: 1.5px dashed var(--color-border-mid);
  border-radius: var(--radius-xl);
  padding: var(--space-10) var(--space-12);
  position: relative;
  max-width: 900px;
  margin: 0 auto;
}

.skuiddy-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: 0.25rem 0.875rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  white-space: nowrap;
}

.skuiddy-header {
  text-align: center;
  margin-bottom: var(--space-8);
}

.skuiddy-header h2 {
  font-size: 1.625rem;
  margin-bottom: var(--space-4);
}

.skuiddy-header p {
  color: var(--color-text-muted);
  max-width: 560px;
  margin: 0 auto;
}

.skuiddy-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}

.skuiddy-feature {
  padding: var(--space-4);
  background: var(--color-bg-light);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  color: var(--color-text-body);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.skuiddy-feature-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-purple);
  flex-shrink: 0;
}

.skuiddy-integration-note {
  text-align: center;
  padding: var(--space-4) var(--space-6);
  background: #F0EBFB;
  border-radius: var(--radius-lg);
  color: var(--color-purple);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* ---------------------------------------------------------------
   18. Why NexxusIQ Section
--------------------------------------------------------------- */
#why {
  background: var(--color-white);
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
}

.why-item {
  text-align: center;
  padding: var(--space-8) var(--space-6);
}

.why-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: var(--radius-xl);
  background: #E0F5F8;
  color: var(--color-blue-primary);
  font-size: 1.375rem;
  font-weight: 800;
  margin: 0 auto var(--space-5);
}

.why-item h3 {
  font-size: 1.1875rem;
  margin-bottom: var(--space-3);
}

.why-item p {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  line-height: 1.65;
}

/* ---------------------------------------------------------------
   19. Final CTA Section
--------------------------------------------------------------- */
#contact {
  background: linear-gradient(150deg, var(--color-navy-dark) 0%, var(--color-navy-deep) 100%);
  padding: var(--space-24) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

#contact::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(36, 87, 214, 0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(36, 87, 214, 0.1) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.contact-inner {
  position: relative;
  z-index: 1;
  max-width: 680px;
  margin: 0 auto;
}

#contact h2 {
  color: var(--color-white);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  margin-bottom: var(--space-5);
}

#contact p {
  color: rgba(255,255,255,0.7);
  font-size: 1.0625rem;
  margin-bottom: var(--space-8);
  line-height: 1.7;
}

.contact-ctas {
  display: flex;
  gap: var(--space-3);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--space-8);
}

.contact-email {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: rgba(255,255,255,0.5);
  font-size: 0.875rem;
  justify-content: center;
}

.contact-email a {
  color: rgba(255,255,255,0.7);
  transition: color var(--transition-fast);
}
.contact-email a:hover {
  color: var(--color-white);
}

/* ---------------------------------------------------------------
   20. Footer
--------------------------------------------------------------- */
#footer {
  background: var(--color-navy-deep);
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: var(--space-10) 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-6);
}

.footer-brand {}

.footer-wordmark {
  font-size: 0.9375rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--color-white);
  display: block;
  margin-bottom: var(--space-1);
}

.footer-descriptor {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.35);
}

.footer-links {
  display: flex;
  gap: var(--space-5);
  flex-wrap: wrap;
}

.footer-links a {
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.45);
  transition: color var(--transition-fast);
}
.footer-links a:hover {
  color: rgba(255,255,255,0.8);
}

.footer-bottom {
  margin-top: var(--space-6);
  padding-top: var(--space-6);
  border-top: 1px solid rgba(255,255,255,0.06);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer-copyright {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.3);
}

.footer-note {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.25);
}

.footer-lumaseer {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.35);
  margin-top: var(--space-2);
}

.footer-lumaseer a {
  color: rgba(255,255,255,0.55);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-lumaseer a:hover {
  color: #0097b2;
}

/* ---------------------------------------------------------------
   21. Scroll Reveal Animations
--------------------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.15s; }
.reveal-delay-3 { transition-delay: 0.2s; }
.reveal-delay-4 { transition-delay: 0.25s; }

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ---------------------------------------------------------------
   22. Focus Styles (Accessibility)
--------------------------------------------------------------- */
:focus-visible {
  outline: 2px solid var(--color-blue-primary);
  outline-offset: 3px;
  border-radius: 4px;
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--color-blue-electric);
  outline-offset: 3px;
}

/* ---------------------------------------------------------------
   23. Responsive — Tablet (≤ 1024px)
--------------------------------------------------------------- */
@media (max-width: 1024px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: var(--space-12);
    text-align: center;
  }

  .hero-content { order: 1; }
  .hero-diagram { order: 2; }

  .hero-subhead { max-width: none; }
  .hero-ctas { justify-content: center; }
  .hero-trust { justify-content: center; }

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

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

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

  .capability-card--wide {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-4);
  }

  .spotlight-inner {
    grid-template-columns: 1fr;
    gap: var(--space-10);
  }

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

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

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

  .why-grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .why-item {
    padding: var(--space-6) var(--space-4);
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }

  .footer-links {
    justify-content: center;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* ---------------------------------------------------------------
   24. Responsive — Mobile (≤ 768px)
--------------------------------------------------------------- */
@media (max-width: 768px) {
  :root {
    --space-20: 3.5rem;
    --space-24: 4rem;
  }

  .nav-links,
  .nav-cta { display: none; }

  .nav-hamburger { display: flex; }

  .hero-inner { gap: var(--space-8); }

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

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

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

  .capability-card--wide {
    grid-column: 1;
  }

  .arch-band { padding: var(--space-5); }
  .arch-tags { gap: var(--space-2); }
  .arch-tag  { font-size: 0.75rem; }

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

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

  .skuiddy-inner {
    padding: var(--space-8) var(--space-5);
  }

  .skuiddy-features {
    grid-template-columns: 1fr;
  }

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

  .contact-ctas {
    flex-direction: column;
    align-items: center;
  }

  .btn-group {
    flex-direction: column;
    width: 100%;
  }

  .btn-group .btn {
    justify-content: center;
  }
}

/* ---------------------------------------------------------------
   25. Responsive — Small Mobile (≤ 390px)
--------------------------------------------------------------- */
@media (max-width: 390px) {
  .container { padding: 0 var(--space-4); }

  h1 { font-size: 1.75rem; }
  h2 { font-size: 1.5rem; }

  .diagram-flow { max-width: 100%; }

  .skuiddy-inner {
    padding: var(--space-6) var(--space-4);
  }
}

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

.text-center { text-align: center; }
.mt-4  { margin-top: var(--space-4); }
.mt-6  { margin-top: var(--space-6); }
.mt-8  { margin-top: var(--space-8); }
.mb-4  { margin-bottom: var(--space-4); }
.mb-6  { margin-bottom: var(--space-6); }
.mb-8  { margin-bottom: var(--space-8); }