/* NexusNodes Commercial Shell — Core Stylesheet */
/* Typography: Inter (body), DM Sans (headings), JetBrains Mono (code) */

:root {
  --nn-bg: #0a0e17;
  --nn-bg-subtle: #0f1420;
  --nn-surface: #151b2b;
  --nn-surface-hover: #1c2438;
  --nn-border: #1e2a3f;
  --nn-border-light: #2a3a55;
  --nn-text: #e8ecf4;
  --nn-text-muted: #8b9ab8;
  --nn-text-dim: #5a6a85;
  --nn-accent: #22c997;
  --nn-accent-hover: #1db886;
  --nn-accent-glow: rgba(34, 201, 151, 0.15);
  --nn-secondary: #3b82f6;
  --nn-secondary-glow: rgba(59, 130, 246, 0.12);
  --nn-white: #ffffff;
  --nn-radius: 8px;
  --nn-radius-lg: 16px;
  --nn-font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --nn-font-display: 'DM Sans', 'Inter', sans-serif;
  --nn-font-mono: 'JetBrains Mono', monospace;
  --nn-max-width: 1200px;
  --nn-section-gap: 24px;
}

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

html { font-size: 16px; scroll-behavior: smooth; }

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

body {
  font-family: var(--nn-font);
  background: var(--nn-bg);
  color: var(--nn-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

.nn-page {
  background: var(--nn-bg);
  color: var(--nn-text);
  overflow-x: hidden;
}






/* --- Header / Nav --- */
.nn-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(10, 14, 23, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--nn-border);
}

.nn-nav {
  max-width: var(--nn-max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nn-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--nn-text);
}

.nn-logo-mark {
  font-size: 24px;
  color: var(--nn-accent);
}

.nn-logo-text {
  font-family: var(--nn-font-display);
  font-weight: 700;
  font-size: 18px;
}

.nn-nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nn-nav-links a {
  color: var(--nn-text-muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s;
}

.nn-nav-links a:hover { color: var(--nn-text); }

.nn-nav-cta {
  background: var(--nn-accent);
  color: var(--nn-bg) !important;
  padding: 8px 16px;
  border-radius: var(--nn-radius);
  font-weight: 600;
}

.nn-nav-cta:hover { background: var(--nn-accent-hover); }

.nn-nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nn-nav-toggle span {
  width: 20px;
  height: 2px;
  background: var(--nn-text);
  border-radius: 1px;
  transition: transform 0.2s;
}

/* --- Sections --- */
.nn-section {
  max-width: var(--nn-max-width);
  margin: 0 auto;
  padding: var(--nn-section-gap) 24px;
}

.nn-section-label {
  font-family: var(--nn-font-mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--nn-accent);
  margin-bottom: 16px;
}

.nn-section-title {
  font-family: var(--nn-font-display);
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
}

.nn-section-body {
  font-size: 17px;
  color: var(--nn-text-muted);
  max-width: 680px;
  line-height: 1.7;
}

/* --- Buttons --- */
.nn-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--nn-radius);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s;
  cursor: pointer;
  border: none;
}

.nn-btn-primary {
  background: var(--nn-accent);
  color: var(--nn-bg);
  box-shadow: 0 0 20px var(--nn-accent-glow);
}

.nn-btn-primary:hover {
  background: var(--nn-accent-hover);
  box-shadow: 0 0 30px var(--nn-accent-glow);
  transform: translateY(-1px);
}

.nn-btn-secondary {
  background: transparent;
  color: var(--nn-text);
  border: 1px solid var(--nn-border-light);
}

.nn-btn-secondary:hover {
  border-color: var(--nn-accent);
  color: var(--nn-accent);
}

/* --- Cards --- */
.nn-card {
  background: var(--nn-surface);
  border: 1px solid var(--nn-border);
  border-radius: var(--nn-radius-lg);
  padding: 32px;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.nn-card:hover {
  border-color: var(--nn-border-light);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
}

/* --- Grid --- */
.nn-grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.nn-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.nn-grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

/* --- Hero --- */
.nn-hero {
  min-height: 80vh;
  display: flex;
  align-items: center;
  padding-top: 64px;
  position: relative;
  overflow: hidden;
}

.nn-hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

.nn-hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(34, 201, 151, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34, 201, 151, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 20%, transparent 70%);
}

.nn-hero-glow {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--nn-accent-glow) 0%, transparent 70%);
  top: -100px;
  right: -100px;
  animation: nn-pulse 8s ease-in-out infinite;
}

.nn-hero-glow-2 {
  position: absolute;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--nn-secondary-glow) 0%, transparent 70%);
  bottom: -50px;
  left: -50px;
  animation: nn-pulse 10s ease-in-out infinite reverse;
}

@keyframes nn-pulse {
  0%, 100% { opacity: 0.5; transform: scale(1); }
  50% { opacity: 0.8; transform: scale(1.1); }
}

.nn-hero-content {
  position: relative;
  z-index: 1;
  max-width: var(--nn-max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.nn-hero h1 {
  font-family: var(--nn-font-display);
  font-size: clamp(36px, 5.5vw, 64px);
  font-weight: 800;
  line-height: 1.1;
  max-width: 800px;
  margin-bottom: 24px;
}

.nn-hero h1 .nn-highlight {
  background: linear-gradient(135deg, var(--nn-accent), var(--nn-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nn-hero-sub {
  font-size: clamp(16px, 2vw, 20px);
  color: var(--nn-text-muted);
  max-width: 600px;
  line-height: 1.6;
  margin-bottom: 40px;
}

.nn-hero-ctas {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.nn-proof-bar {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  padding-top: 32px;
  border-top: 1px solid var(--nn-border);
}

.nn-proof-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--nn-text-muted);
}

.nn-proof-item::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--nn-accent);
}

/* --- Pricing Cards --- */
.nn-plan-card {
  position: relative;
}

.nn-plan-card.nn-featured {
  border-color: var(--nn-accent);
  box-shadow: 0 0 30px var(--nn-accent-glow);
}

.nn-plan-name {
  font-family: var(--nn-font-display);
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
}

.nn-plan-price {
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 4px;
}

.nn-plan-price span {
  font-size: 16px;
  font-weight: 400;
  color: var(--nn-text-muted);
}

.nn-plan-fit {
  font-size: 14px;
  color: var(--nn-text-muted);
  margin-bottom: 24px;
}

.nn-plan-features {
  list-style: none;
  margin-bottom: 32px;
}

.nn-plan-features li {
  padding: 8px 0;
  font-size: 14px;
  color: var(--nn-text-muted);
  border-bottom: 1px solid var(--nn-border);
  display: flex;
  align-items: center;
  gap: 8px;
}

.nn-plan-features li::before {
  content: '✓';
  color: var(--nn-accent);
  font-weight: 700;
  font-size: 12px;
}

/* --- Migration Steps --- */
.nn-steps {
  display: grid;
  gap: 24px;
  counter-reset: step;
}

.nn-step {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 16px;
  align-items: start;
}

.nn-step-num {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--nn-surface);
  border: 1px solid var(--nn-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--nn-font-mono);
  font-size: 14px;
  color: var(--nn-accent);
  font-weight: 700;
}

.nn-step-title {
  font-weight: 600;
  margin-bottom: 4px;
}

.nn-step-desc {
  font-size: 14px;
  color: var(--nn-text-muted);
}

.nn-step-price {
  font-family: var(--nn-font-mono);
  font-size: 13px;
  color: var(--nn-accent);
  margin-top: 4px;
}

/* --- FAQ --- */
.nn-faq-item {
  border-bottom: 1px solid var(--nn-border);
  padding: 24px 0;
}

.nn-faq-q {
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nn-faq-q::after {
  content: '+';
  font-size: 20px;
  color: var(--nn-text-muted);
  transition: transform 0.2s;
}

.nn-faq-item.open .nn-faq-q::after {
  transform: rotate(45deg);
}

.nn-faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
  color: var(--nn-text-muted);
  font-size: 15px;
  line-height: 1.7;
}

.nn-faq-item.open .nn-faq-a {
  max-height: 300px;
  padding-top: 12px;
}

/* --- Footer --- */
.nn-footer {
  border-top: 1px solid var(--nn-border);
  padding: 64px 24px 32px;
  margin-top: var(--nn-section-gap);
}

.nn-footer-inner {
  max-width: var(--nn-max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 48px;
}

.nn-footer-tagline {
  font-size: 14px;
  color: var(--nn-text-muted);
  margin-top: 12px;
}

.nn-footer-nav {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.nn-footer-col h4 {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--nn-text-dim);
  margin-bottom: 16px;
}

.nn-footer-col ul { list-style: none; }

.nn-footer-col li { margin-bottom: 10px; }

.nn-footer-col a {
  color: var(--nn-text-muted);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.2s;
}

.nn-footer-col a:hover { color: var(--nn-accent); }

.nn-footer-bottom {
  max-width: var(--nn-max-width);
  margin: 48px auto 0;
  padding-top: 24px;
  border-top: 1px solid var(--nn-border);
  font-size: 13px;
  color: var(--nn-text-dim);
}

/* --- Reveal animations --- */
.nn-reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.nn-reveal-delay-1 { transition-delay: 0.1s; }
.nn-reveal-delay-2 { transition-delay: 0.2s; }
.nn-reveal-delay-3 { transition-delay: 0.3s; }
.nn-reveal-delay-4 { transition-delay: 0.4s; }

/* --- Responsive --- */
@media (max-width: 768px) {
  :root { --nn-section-gap: 80px; }

  .nn-nav-links { display: none; }
  .nn-nav-toggle { display: flex; }

  .nn-nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0; right: 0;
    background: var(--nn-bg);
    border-bottom: 1px solid var(--nn-border);
    padding: 24px;
    gap: 16px;
  }

  .nn-grid-2, .nn-grid-3, .nn-grid-4 {
    grid-template-columns: 1fr;
  }

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

  .nn-hero h1 { font-size: clamp(28px, 8vw, 42px); }
}

/* --- Hero topology SVG --- */
.nn-hero-topo {
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 50%;
  height: 80%;
  opacity: 0.6;
}

/* --- Value Pillars --- */
.nn-pillar-num {
  font-family: var(--nn-font-mono);
  font-size: 12px;
  color: var(--nn-accent);
  display: block;
  margin-bottom: 12px;
}

.nn-pillar-title {
  font-family: var(--nn-font-display);
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
}

.nn-pillar-desc {
  font-size: 14px;
  color: var(--nn-text-muted);
  line-height: 1.6;
}

/* --- Capabilities (dark section) --- */
.nn-section-dark {
  background: none;
  border-top: none;
  border-bottom: none;
  padding-top: var(--nn-section-gap);
  padding-bottom: var(--nn-section-gap);
  padding-left: 24px;
  padding-right: 24px;
}

.nn-capability-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 32px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.nn-capability-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 15px;
  color: var(--nn-text-muted);
  padding: 12px 0;
}

.nn-cap-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--nn-accent);
  flex-shrink: 0;
}

/* --- Card icon --- */
.nn-card-icon {
  font-size: 24px;
  color: var(--nn-accent);
}

/* --- Final CTA section --- */
.nn-final-cta {
  text-align: center;
  padding-top: 80px;
  padding-bottom: 80px;
  border-top: 1px solid var(--nn-border);
}

.nn-final-cta .nn-section-body {
  margin: 0 auto 0;
}

.nn-final-cta .nn-hero-ctas {
  justify-content: center;
}

/* --- Mobile capability grid --- */
@media (max-width: 768px) {
  .nn-capability-grid { grid-template-columns: 1fr; }
  .nn-hero-topo { display: none; }
}

/* --- Forms --- */
.nn-form-group {
  margin-bottom: 20px;
}

.nn-form-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--nn-text-muted);
  margin-bottom: 6px;
}

.nn-form-group input,
.nn-form-group select,
.nn-form-group textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--nn-bg);
  border: 1px solid var(--nn-border);
  border-radius: var(--nn-radius);
  color: var(--nn-text);
  font-family: var(--nn-font);
  font-size: 14px;
  transition: border-color 0.2s;
}

.nn-form-group input:focus,
.nn-form-group select:focus,
.nn-form-group textarea:focus {
  outline: none;
  border-color: var(--nn-accent);
}

.nn-form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

@media (max-width: 768px) {
  .nn-form-row { grid-template-columns: 1fr; }
}

.nn-intake-form {
  max-width: 600px;
}

/* --- Login layout --- */
.nn-login-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  max-width: 800px;
}

@media (max-width: 768px) {
  .nn-login-container { grid-template-columns: 1fr; }
}

.nn-login-box {
  padding: 40px;
}

.nn-console-bridge {
  padding: 40px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-color: var(--nn-border-light);
}

.nn-bridge-icon {
  font-size: 32px;
  color: var(--nn-accent);
  margin-bottom: 12px;
}

/* --- Legal --- */
.nn-legal-placeholder {
  font-size: 12px;
  font-family: var(--nn-font-mono);
  color: var(--nn-text-dim);
  margin-top: 12px;
  padding: 8px 12px;
  background: var(--nn-bg);
  border-radius: var(--nn-radius);
  border: 1px dashed var(--nn-border);
}


/* --- Migration grid (2-col) --- */
.nn-migration-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
.nn-mig-card {
  padding: 8px 0;
  text-align: center;
}
.nn-mig-num {
  font-family: var(--nn-font-mono);
  font-size: 13px;
  color: var(--nn-accent);
  font-weight: 700;
}
.nn-mig-card h4 {
  font-weight: 600;
  margin: 8px 0 6px;
  font-size: 15px;
}
.nn-mig-card p {
  font-size: 14px;
  color: var(--nn-text-muted);
  margin: 0 0 12px;
}
.nn-mig-price {
  font-family: var(--nn-font-mono);
  font-size: 13px;
  color: var(--nn-accent);
}
@media (max-width: 768px) {
  .nn-migration-grid { grid-template-columns: 1fr; }
}

/* Full-width for nodes page only */
.nn-page .nn-section {
  max-width: 100%;
  padding-left: 64px;
  padding-right: 64px;
}
.nn-page .nn-hero-content {
  max-width: 100%;
  padding: 0 64px;
}
@media (max-width: 768px) {
  .nn-page .nn-section { padding-left: 24px; padding-right: 24px; }
  .nn-page .nn-hero-content { padding: 0 24px; }
}