/* ============================================================
   Neural Void — Global Styles v2

   Color palette (edit here to rebrand):
   --nv-bg:          #08080d        near-black base
   --nv-bg-alt:      #0c0c14        alternate darker surface
   --nv-surface:     #111118        card / panel surface
   --nv-surface-hi:  #16161f        elevated surface
   --nv-border:      #1c1c2a        subtle borders
   --nv-border-hi:   #2a2a3e        highlighted borders
   --nv-text:        #d4d4e0        primary text
   --nv-text-dim:    #7a7a94        secondary text
   --nv-accent:      #00d4f5        electric cyan accent
   --nv-accent-alt:  #8066ff        violet accent
   --nv-white:       #eeeef4        cold white
   ============================================================ */

:root {
  --nv-bg: #08080d;
  --nv-bg-alt: #0c0c14;
  --nv-surface: #111118;
  --nv-surface-hi: #16161f;
  --nv-border: #1c1c2a;
  --nv-border-hi: #2a2a3e;
  --nv-text: #d4d4e0;
  --nv-text-dim: #7a7a94;
  --nv-accent: #00d4f5;
  --nv-accent-alt: #8066ff;
  --nv-white: #eeeef4;
  --nv-glow: rgba(0, 212, 245, 0.12);
  --nv-glow-strong: rgba(0, 212, 245, 0.25);
  --nv-glow-alt: rgba(128, 102, 255, 0.10);
  --nv-radius: 14px;
  --nv-radius-sm: 8px;
  --nv-max-width: 1100px;
  --nv-font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --nv-font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --nv-transition: .28s cubic-bezier(.4, 0, .2, 1);
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--nv-font);
  background: var(--nv-bg);
  color: var(--nv-text);
  line-height: 1.65;
  overflow-x: hidden;
}

/* Subtle noise texture overlay */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 256px;
}

::selection {
  background: rgba(0, 212, 245, 0.2);
  color: var(--nv-white);
}

a {
  color: var(--nv-accent);
  text-decoration: none;
  transition: color var(--nv-transition);
}
a:hover { color: var(--nv-white); }

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

/* --- Utility --- */
.container {
  width: 100%;
  max-width: var(--nv-max-width);
  margin: 0 auto;
  padding: 0 28px;
}

.section {
  padding: 110px 0;
  position: relative;
}

.section-label {
  font-family: var(--nv-font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--nv-accent);
  margin-bottom: 14px;
  display: block;
}

.section-title {
  font-size: clamp(1.75rem, 3.8vw, 2.5rem);
  font-weight: 650;
  color: var(--nv-white);
  margin-bottom: 18px;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.section-text {
  font-size: 1.02rem;
  color: var(--nv-text-dim);
  max-width: 580px;
  line-height: 1.75;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: var(--nv-radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: all var(--nv-transition);
  font-family: var(--nv-font);
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.btn-primary {
  background: var(--nv-accent);
  color: var(--nv-bg);
}
.btn-primary:hover {
  background: var(--nv-white);
  color: var(--nv-bg);
  box-shadow: 0 0 32px var(--nv-glow), 0 4px 20px rgba(0, 0, 0, 0.3);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--nv-accent);
  border: 1px solid var(--nv-border);
}
.btn-ghost:hover {
  border-color: var(--nv-accent);
  box-shadow: 0 0 24px var(--nv-glow);
  color: var(--nv-white);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--nv-surface-hi);
  color: var(--nv-white);
  border: 1px solid var(--nv-border);
}
.btn-secondary:hover {
  background: var(--nv-border);
  border-color: var(--nv-border-hi);
  transform: translateY(-1px);
}

/* --- Glass Panel --- */
.glass {
  background: rgba(17, 17, 24, 0.55);
  border: 1px solid var(--nv-border);
  border-radius: var(--nv-radius);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

/* --- Header / Nav --- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 0;
  height: 64px;
  display: flex;
  align-items: center;
  transition: all .35s ease;
}
.site-header.scrolled {
  background: rgba(8, 8, 13, 0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--nv-border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--nv-white);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.nav-logo span {
  color: var(--nv-accent);
  font-weight: 700;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}
.nav-links a {
  font-size: 0.85rem;
  color: var(--nv-text-dim);
  transition: color var(--nv-transition);
  letter-spacing: 0.01em;
}
.nav-links a:hover { color: var(--nv-white); }

.nav-cta {
  font-size: 0.8rem !important;
  padding: 8px 18px !important;
  color: var(--nv-accent) !important;
}

/* Mobile menu toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--nv-white);
  font-size: 1.4rem;
  cursor: pointer;
  padding: 4px;
}

/* --- Hero --- */
.hero {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 64px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse 55% 45% at 15% 50%, rgba(0, 212, 245, 0.06) 0%, transparent 70%),
    radial-gradient(ellipse 35% 55% at 85% 25%, rgba(128, 102, 255, 0.05) 0%, transparent 70%),
    radial-gradient(ellipse 70% 30% at 50% 105%, rgba(0, 212, 245, 0.035) 0%, transparent 50%);
}

/* Animated glow orbs in hero */
.hero-bg::before,
.hero-bg::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.4;
  animation: orb-drift 20s ease-in-out infinite alternate;
}
.hero-bg::before {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0, 212, 245, 0.08), transparent 70%);
  top: 10%;
  left: -5%;
}
.hero-bg::after {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(128, 102, 255, 0.06), transparent 70%);
  bottom: 5%;
  right: -5%;
  animation-delay: -10s;
  animation-direction: alternate-reverse;
}

@keyframes orb-drift {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(30px, -20px) scale(1.1); }
  100% { transform: translate(-20px, 15px) scale(0.95); }
}

/* Subtle horizontal lines in hero */
.hero-grid {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  opacity: 0.03;
  background-image:
    repeating-linear-gradient(0deg, transparent, transparent 79px, var(--nv-white) 80px);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 680px;
}

.hero-title {
  font-size: clamp(2.2rem, 5.5vw, 3.6rem);
  font-weight: 700;
  line-height: 1.08;
  color: var(--nv-white);
  margin-bottom: 22px;
  letter-spacing: -0.025em;
}
.hero-title .accent {
  color: var(--nv-accent);
  position: relative;
}

.hero-sub {
  font-size: clamp(0.95rem, 1.8vw, 1.1rem);
  color: var(--nv-text-dim);
  margin-bottom: 36px;
  max-width: 500px;
  line-height: 1.75;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

/* --- Grid Cards --- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
  margin-top: 44px;
}

.card {
  padding: 28px 24px;
  transition: all var(--nv-transition);
  position: relative;
}
.card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--nv-radius);
  opacity: 0;
  transition: opacity var(--nv-transition);
  background: radial-gradient(ellipse at 50% 0%, var(--nv-glow), transparent 70%);
  pointer-events: none;
}
.card:hover {
  border-color: rgba(0, 212, 245, 0.2);
  transform: translateY(-2px);
}
.card:hover::before {
  opacity: 1;
}

.card-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(0, 212, 245, 0.15), rgba(128, 102, 255, 0.1));
  border: 1px solid rgba(0, 212, 245, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-size: 1rem;
  color: var(--nv-accent);
}

.card-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--nv-white);
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.card-text {
  font-size: 0.88rem;
  color: var(--nv-text-dim);
  line-height: 1.65;
}

/* Card status indicator */
.card-status {
  display: inline-block;
  font-family: var(--nv-font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 4px;
  margin-bottom: 14px;
}
.card-status.live {
  color: #34d399;
  background: rgba(52, 211, 153, 0.1);
  border: 1px solid rgba(52, 211, 153, 0.2);
}
.card-status.soon {
  color: var(--nv-text-dim);
  background: rgba(122, 122, 148, 0.1);
  border: 1px solid rgba(122, 122, 148, 0.15);
}

/* --- Featured Product Block --- */
.featured-block {
  background: linear-gradient(135deg, rgba(17, 17, 24, 0.7), rgba(8, 8, 13, 0.9));
  border: 1px solid var(--nv-border);
  border-radius: var(--nv-radius);
  padding: 48px 44px;
  position: relative;
  overflow: hidden;
}
.featured-block::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--nv-accent), transparent);
  opacity: 0.5;
}

.featured-badge {
  display: inline-block;
  font-family: var(--nv-font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--nv-accent);
  border: 1px solid rgba(0, 212, 245, 0.2);
  border-radius: 4px;
  padding: 4px 10px;
  margin-bottom: 18px;
}

.featured-title {
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  font-weight: 700;
  color: var(--nv-white);
  margin-bottom: 14px;
  letter-spacing: -0.02em;
}

.featured-text {
  font-size: 1rem;
  color: var(--nv-text-dim);
  max-width: 560px;
  line-height: 1.75;
  margin-bottom: 28px;
}

.featured-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* --- Process Steps --- */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
  margin-top: 48px;
  background: var(--nv-border);
  border-radius: var(--nv-radius);
  overflow: hidden;
}

.process-step {
  background: var(--nv-surface);
  padding: 32px 24px;
  position: relative;
  text-align: center;
  counter-increment: step;
}
.process-step::before {
  content: counter(step, decimal-leading-zero);
  display: block;
  font-family: var(--nv-font-mono);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--nv-accent);
  opacity: 0.2;
  margin-bottom: 14px;
  line-height: 1;
}
.process-step:first-child::before { opacity: 0.4; }

.process-step h3 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--nv-white);
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.process-step p {
  font-size: 0.82rem;
  color: var(--nv-text-dim);
  line-height: 1.6;
}

/* --- CTA Section --- */
.cta-section {
  text-align: center;
}
.cta-section .section-text {
  margin: 0 auto 28px;
}

.cta-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

.cta-email {
  font-family: var(--nv-font-mono);
  font-size: 0.88rem;
  color: var(--nv-text-dim);
  margin-top: 24px;
}
.cta-email a { color: var(--nv-accent); }

/* --- Footer --- */
.site-footer {
  border-top: 1px solid var(--nv-border);
  padding: 36px 0;
  margin-top: 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-copy {
  font-size: 0.78rem;
  color: var(--nv-text-dim);
}

.footer-links {
  display: flex;
  gap: 24px;
  list-style: none;
}
.footer-links a {
  font-size: 0.78rem;
  color: var(--nv-text-dim);
  transition: color var(--nv-transition);
}
.footer-links a:hover { color: var(--nv-white); }

/* --- Divider --- */
.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--nv-border), rgba(0, 212, 245, 0.2), var(--nv-border), transparent);
  margin: 0 auto;
  max-width: 500px;
}

/* --- Scroll reveal animation --- */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .65s cubic-bezier(.4, 0, .2, 1), transform .65s cubic-bezier(.4, 0, .2, 1);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Staggered reveal for card grids */
.card-grid .reveal:nth-child(2) { transition-delay: .08s; }
.card-grid .reveal:nth-child(3) { transition-delay: .16s; }
.card-grid .reveal:nth-child(4) { transition-delay: .24s; }

/* --- Page-specific: Foldwink Product Page --- */
.fw-hero {
  min-height: 72vh;
  min-height: 72dvh;
  display: flex;
  align-items: center;
  padding-top: 64px;
  position: relative;
  overflow: hidden;
}
.fw-hero .hero-bg {
  background:
    radial-gradient(ellipse 50% 50% at 75% 40%, rgba(0, 212, 245, 0.06) 0%, transparent 70%),
    radial-gradient(ellipse 40% 50% at 25% 60%, rgba(128, 102, 255, 0.05) 0%, transparent 70%);
}

.fw-audience-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin-top: 36px;
}

.fw-audience-item {
  padding: 24px;
}
.fw-audience-item strong {
  display: block;
  color: var(--nv-white);
  font-size: 0.95rem;
  margin-bottom: 6px;
}
.fw-audience-item p {
  color: var(--nv-text-dim);
  font-size: 0.85rem;
  line-height: 1.65;
}

.fw-deliverables {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  margin-top: 36px;
}

.fw-deliverable {
  padding: 26px;
}
.fw-deliverable h3 {
  color: var(--nv-white);
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 8px;
}
.fw-deliverable p {
  color: var(--nv-text-dim);
  font-size: 0.85rem;
  line-height: 1.65;
}

.fw-timeline {
  display: flex;
  gap: 0;
  margin-top: 44px;
  flex-wrap: wrap;
}
.fw-timeline-step {
  flex: 1;
  min-width: 150px;
  padding: 24px 20px;
  border-left: 2px solid var(--nv-border);
  position: relative;
}
.fw-timeline-step:first-child { border-left-color: var(--nv-accent); }
.fw-timeline-step .step-label {
  font-family: var(--nv-font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--nv-accent);
  margin-bottom: 8px;
  display: block;
}
.fw-timeline-step h4 {
  color: var(--nv-white);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 6px;
}
.fw-timeline-step p {
  color: var(--nv-text-dim);
  font-size: 0.8rem;
  line-height: 1.55;
}

/* --- Demo CTA highlight bar --- */
.demo-bar {
  background: linear-gradient(135deg, rgba(0, 212, 245, 0.06), rgba(128, 102, 255, 0.04));
  border: 1px solid rgba(0, 212, 245, 0.12);
  border-radius: var(--nv-radius);
  padding: 28px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  margin-top: 36px;
}
.demo-bar-text {
  font-size: 0.95rem;
  color: var(--nv-text);
}
.demo-bar-text strong {
  color: var(--nv-white);
  display: block;
  margin-bottom: 4px;
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .section { padding: 72px 0; }

  .nav-links { display: none; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 64px; left: 0; right: 0; bottom: 0;
    background: rgba(8, 8, 13, 0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 32px 28px;
    gap: 20px;
    z-index: 99;
  }
  .nav-toggle { display: block; }

  .hero-title { font-size: clamp(1.9rem, 7.5vw, 2.8rem); }

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

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

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

  .featured-block { padding: 32px 24px; }

  .fw-hero { min-height: 60vh; }
  .fw-timeline { flex-direction: column; }

  .demo-bar { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  .container { padding: 0 18px; }
  .hero-actions,
  .featured-actions,
  .cta-actions { flex-direction: column; }
  .hero-actions .btn,
  .featured-actions .btn,
  .cta-actions .btn { width: 100%; }
  .process-grid { grid-template-columns: 1fr; }
}
