/* ==========================================================================
   NNC Flow — Midnight Broadcast Theme Stylesheet
   System font stack only, zero external CDN dependencies.
   ========================================================================== */

:root {
  --bg-main: #07090d;
  --bg-surface: #0e121a;
  --bg-surface-elevated: #141924;
  --bg-surface-hover: #19202e;
  
  --accent: #00ff66;
  --accent-hover: #1aff75;
  --accent-glow: rgba(0, 255, 102, 0.28);
  --accent-subtle: rgba(0, 255, 102, 0.08);
  --accent-border: rgba(0, 255, 102, 0.25);
  
  --text-main: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-inverse: #050807;
  
  --border-color: rgba(255, 255, 255, 0.08);
  --border-focus: rgba(0, 255, 102, 0.5);

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  
  --container-max: 1200px;
  --transition-fast: 0.18s ease;
  --transition-normal: 0.25s ease;
}

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

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

body {
  background-color: var(--bg-main);
  color: var(--text-main);
  font-family: var(--font-sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  background-image: 
    radial-gradient(circle at 50% 0%, rgba(0, 255, 102, 0.07) 0%, transparent 60%),
    radial-gradient(circle at 90% 40%, rgba(0, 255, 102, 0.03) 0%, transparent 40%);
  background-repeat: no-repeat;
}

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

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

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.text-accent {
  color: var(--accent);
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(7, 9, 13, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  padding: 0.875rem 0;
}

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

.brand-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  color: #fff;
}

.brand-logo {
  border-radius: var(--radius-sm);
  background: #000;
  object-fit: contain;
}

.brand-name {
  background: linear-gradient(135deg, #ffffff 40%, #c4cbd4 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

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

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.875rem;
}

.btn-secondary-nav {
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: rgba(255, 255, 255, 0.03);
  transition: all var(--transition-fast);
}

.btn-secondary-nav:hover {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.07);
}

/* Mobile Toggle */
.mobile-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.5rem;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
  width: 40px;
  height: 40px;
  justify-content: center;
  align-items: center;
}

.hamburger-bar {
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--text-main);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

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

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

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

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.25rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  cursor: pointer;
  border: 1px solid transparent;
  white-space: nowrap;
  transition: all var(--transition-normal);
}

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

.btn-primary:hover {
  background-color: var(--accent-hover);
  box-shadow: 0 0 28px rgba(0, 255, 102, 0.45);
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: rgba(255, 255, 255, 0.05);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.14);
}

.btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.09);
  border-color: var(--accent-border);
  color: var(--accent);
  transform: translateY(-1px);
}

.btn-lg {
  padding: 0.85rem 1.65rem;
  font-size: 1.05rem;
  border-radius: var(--radius-md);
}

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

.btn:hover .btn-icon {
  transform: translateX(3px);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */

.hero-section {
  padding: 5rem 0 4rem;
  position: relative;
}

.hero-container {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 3.5rem;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.85rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  background-color: var(--accent-subtle);
  border: 1px solid var(--accent-border);
  border-radius: var(--radius-full);
  margin-bottom: 1.5rem;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--accent);
  box-shadow: 0 0 8px var(--accent);
  animation: pulse-dot 2s infinite ease-in-out;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

.hero-title {
  font-size: 3.25rem;
  line-height: 1.15;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
}

.hero-subtitle {
  font-size: 1.15rem;
  line-height: 1.65;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  max-width: 580px;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2.25rem;
}

.hero-highlights {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.highlight-item {
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.highlight-bullet {
  color: var(--accent);
  font-weight: 700;
}

/* Hero Terminal Visual */
.terminal-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.7), 0 0 30px rgba(0, 255, 102, 0.05);
  overflow: hidden;
  position: relative;
}

.terminal-header {
  background: rgba(0, 0, 0, 0.45);
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-color);
}

.terminal-dots {
  display: flex;
  gap: 6px;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.dot.red { background: #ff5f56; }
.dot.yellow { background: #ffbd2e; }
.dot.green { background: #27c93f; }

.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.terminal-live {
  display: flex;
  align-items: center;
  gap: 5px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--accent);
}

.pulse-indicator {
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 6px var(--accent);
}

.terminal-body {
  padding: 1.25rem 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.console-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.35rem 0.5rem;
  background: rgba(255, 255, 255, 0.02);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.03);
}

.console-label {
  color: var(--text-muted);
  font-size: 0.78rem;
}

.console-val {
  font-weight: 600;
  color: #e2e8f0;
}

.terminal-divider {
  height: 1px;
  background: var(--border-color);
  margin: 0.5rem 0;
}

.console-feed {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.feed-item {
  padding: 0.2rem 0;
}

.feed-item.highlight {
  color: var(--accent);
}

.feed-time {
  color: var(--text-muted);
  margin-right: 0.4rem;
}

/* ==========================================================================
   Section Headers
   ========================================================================== */

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 3.5rem;
}

.section-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.25;
  margin-bottom: 1rem;
}

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

/* ==========================================================================
   Features Section
   ========================================================================== */

.features-section {
  padding: 5rem 0;
  position: relative;
  background: linear-gradient(180deg, var(--bg-main) 0%, rgba(14, 18, 26, 0.4) 50%, var(--bg-main) 100%);
}

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

.feature-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-border);
  box-shadow: 0 12px 30px -10px rgba(0, 0, 0, 0.6), 0 0 25px rgba(0, 255, 102, 0.08);
  background: var(--bg-surface-elevated);
}

.feature-icon-wrapper {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--accent-subtle);
  border: 1px solid var(--accent-border);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.35rem;
}

.feature-icon {
  width: 24px;
  height: 24px;
}

.feature-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: #fff;
}

.feature-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ==========================================================================
   How It Works Section
   ========================================================================== */

.how-it-works-section {
  padding: 5rem 0;
  position: relative;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  position: relative;
}

.step-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.25rem 2rem;
  position: relative;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.step-card:hover {
  border-color: var(--accent-border);
  background: var(--bg-surface-elevated);
  transform: translateY(-3px);
}

.step-badge {
  font-family: var(--font-mono);
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 1.25rem;
  opacity: 0.9;
}

.step-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: #fff;
}

.step-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ==========================================================================
   Founder Section
   ========================================================================== */

.founder-section {
  padding: 4.5rem 0;
}

.founder-card {
  background: linear-gradient(135deg, var(--bg-surface) 0%, rgba(20, 25, 36, 0.9) 100%);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 3rem;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 2.5rem;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.founder-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent);
}

.founder-avatar-box {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: #161c28;
  border: 2px solid var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 25px rgba(0, 255, 102, 0.2);
  overflow: hidden;
}

.founder-initials {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.05em;
  font-family: var(--font-mono);
}

.founder-avatar-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
  display: block;
}

.founder-badge {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.founder-name {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: #fff;
}

.founder-quote {
  font-size: 1.05rem;
  line-height: 1.7;
  color: #cbd5e1;
  margin-bottom: 1.75rem;
  font-style: italic;
  max-width: 800px;
}

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

/* ==========================================================================
   CTA Banner
   ========================================================================== */

.cta-banner-section {
  padding: 3rem 0 5rem;
}

.cta-banner {
  background: radial-gradient(circle at 10% 20%, rgba(0, 255, 102, 0.12) 0%, transparent 50%),
              var(--bg-surface);
  border: 1px solid var(--accent-border);
  border-radius: var(--radius-lg);
  padding: 3.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2.5rem;
  box-shadow: 0 0 40px rgba(0, 255, 102, 0.08);
}

.cta-banner-title {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
  color: #fff;
}

.cta-banner-text {
  font-size: 1.05rem;
  color: var(--text-secondary);
}

.cta-banner-buttons {
  display: flex;
  gap: 1rem;
  flex-shrink: 0;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  border-top: 1px solid var(--border-color);
  background: #040609;
  padding: 4rem 0 2rem;
}

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

.footer-logo-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
  font-size: 1.2rem;
  color: #fff;
  margin-bottom: 1rem;
}

.footer-tagline {
  font-size: 0.95rem;
  color: var(--text-muted);
  max-width: 420px;
  line-height: 1.6;
}

.footer-nav {
  display: flex;
  gap: 4rem;
}

.footer-heading {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #fff;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}

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

.footer-links a {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

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

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent);
  background: rgba(0, 255, 102, 0.06);
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--accent-border);
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */

@media (max-width: 992px) {
  .hero-container {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  
  .hero-visual {
    max-width: 540px;
    margin: 0 auto;
    width: 100%;
  }

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

  .steps-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .founder-card {
    grid-template-columns: 1fr;
    text-align: left;
    padding: 2.25rem;
  }

  .cta-banner {
    flex-direction: column;
    align-items: flex-start;
    padding: 2.5rem;
  }

  .footer-container {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
}

@media (max-width: 768px) {
  .mobile-toggle {
    display: flex;
  }

  .primary-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #090c12;
    border-bottom: 1px solid var(--border-color);
    padding: 1.5rem;
    flex-direction: column;
    align-items: stretch;
    gap: 1.25rem;
    display: none;
    box-shadow: 0 20px 30px rgba(0, 0, 0, 0.8);
  }

  .primary-nav.is-open {
    display: flex;
  }

  .nav-links {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
    width: 100%;
  }

  .nav-actions {
    flex-direction: column;
    width: 100%;
    gap: 0.75rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--border-color);
  }

  .nav-actions .btn,
  .nav-actions .btn-secondary-nav {
    width: 100%;
    text-align: center;
  }

  .hero-title {
    font-size: 2.35rem;
  }

  .hero-subtitle {
    font-size: 1.05rem;
  }

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

  .cta-banner-buttons {
    flex-direction: column;
    width: 100%;
  }

  .cta-banner-buttons .btn {
    width: 100%;
  }

  .footer-nav {
    flex-direction: column;
    gap: 2rem;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    align-items: flex-start;
  }
}