/* ============================================
   Neural Forge — Dark Tech Aesthetic
   ============================================ */

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

:root {
  /* Colors */
  --bg-base: #0a0e14;
  --bg-elevated: #0f141c;
  --bg-card: #131923;
  --bg-card-hover: #18202e;
  --border: #1e2733;
  --border-bright: #2a3645;
  --text-primary: #e8edf4;
  --text-secondary: #9aa5b8;
  --text-muted: #5a6378;
  --accent: #00e5d1;
  --accent-dim: #00b8a9;
  --accent-glow: rgba(0, 229, 209, 0.15);
  --red: #ff5757;
  --yellow: #ffbd2e;
  --green: #28ca42;

  /* Typography */
  --font-sans: 'Space Grotesk', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;

  /* Layout */
  --max-width: 1280px;
  --nav-height: 68px;

  /* Motion */
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

/* --- Buttons --- */
.btn-primary, .btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 14px;
  padding: 10px 20px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.25s var(--ease);
  border: 1px solid transparent;
  white-space: nowrap;
  text-decoration: none;
}

.btn-primary {
  background: var(--accent);
  color: #0a0e14;
  border-color: var(--accent);
}
.btn-primary:hover {
  background: var(--accent-dim);
  border-color: var(--accent-dim);
  transform: translateY(-1px);
  box-shadow: 0 4px 20px var(--accent-glow);
}
.btn-primary:active { transform: translateY(0); }

.btn-ghost {
  background: transparent;
  color: var(--text-primary);
  border-color: var(--border-bright);
}
.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-glow);
}

.btn-lg { padding: 14px 28px; font-size: 15px; }
.btn-block { display: flex; justify-content: center; width: 100%; }

/* --- Navigation --- */
#nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-height);
  background: rgba(10, 14, 20, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
  transition: all 0.3s var(--ease);
}
#nav.scrolled {
  background: rgba(10, 14, 20, 0.95);
  border-bottom-color: var(--border-bright);
}

.nav-inner {
  max-width: var(--max-width);
  height: 100%;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 18px;
  color: var(--text-primary);
}
.logo svg { flex-shrink: 0; }

.nav-links {
  display: flex;
  gap: 32px;
}
.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--accent); }

.nav-cta {
  display: flex;
  gap: 12px;
  align-items: center;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 24px;
  cursor: pointer;
}

.nav-mobile {
  display: none;
  flex-direction: column;
  gap: 16px;
  padding: 20px 24px;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
}
.nav-mobile.open { display: flex; }
.nav-mobile a {
  font-size: 15px;
  color: var(--text-secondary);
  padding: 6px 0;
}
.nav-mobile .mobile-cta {
  margin-top: 8px;
  justify-content: center;
}

/* --- Hero --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  padding: var(--nav-height) 24px 80px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.35;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, transparent 0%, var(--bg-base) 75%);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 760px;
  animation: heroFadeUp 1s var(--ease) both;
}

@keyframes heroFadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-bright);
  border-radius: 100px;
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 28px;
}
.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 var(--accent);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 var(--accent-glow); }
  70% { box-shadow: 0 0 0 8px transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}
.accent { color: var(--accent); }

.hero-sub {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto 40px;
  line-height: 1.6;
}

.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.hero-scroll {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  color: var(--text-muted);
  font-size: 20px;
  animation: bounce 2s infinite;
  z-index: 1;
}
@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* --- Trusted By --- */
.trusted {
  padding: 60px 24px;
  border-bottom: 1px solid var(--border);
  text-align: center;
}
.trusted-label {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 32px;
  letter-spacing: 0.05em;
}
.logo-wall {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 48px;
  max-width: 900px;
  margin: 0 auto;
  align-items: center;
}
.logo-item {
  opacity: 0.6;
  transition: opacity 0.3s;
}
.logo-item:hover { opacity: 1; }

/* --- Section Common --- */
.section-header {
  max-width: 640px;
  margin: 0 auto 64px;
  text-align: center;
  padding: 0 24px;
}
.section-title {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 16px;
}
.section-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* --- Capabilities --- */
.capabilities {
  padding: 100px 24px;
  max-width: var(--max-width);
  margin: 0 auto;
}
.cap-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.cap-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 32px;
  transition: all 0.3s var(--ease);
  position: relative;
  overflow: hidden;
}
.cap-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0;
  transition: opacity 0.3s;
}
.cap-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-bright);
  transform: translateY(-2px);
}
.cap-card:hover::before { opacity: 1; }

.cap-card-wide {
  grid-column: span 3;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: center;
}
.cap-card-wide .cap-icon { margin-bottom: 0; }

.cap-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-glow);
  border: 1px solid rgba(0, 229, 209, 0.2);
  border-radius: 12px;
  font-size: 24px;
  color: var(--accent);
  margin-bottom: 20px;
}
.cap-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 10px;
}
.cap-card p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.cap-stat {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  text-align: right;
}
.stat-num {
  font-family: var(--font-mono);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}
.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* --- Docs / Code --- */
.docs {
  padding: 100px 24px;
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.docs-layout {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 64px;
  align-items: start;
}
.docs-text .section-title { text-align: left; }
.docs-text .section-desc { text-align: left; margin-bottom: 32px; }

.docs-features {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 36px;
}
.docs-features li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}
.docs-features i {
  font-size: 22px;
  color: var(--accent);
  flex-shrink: 0;
  margin-top: 2px;
}
.docs-features strong {
  display: block;
  font-size: 0.95rem;
  margin-bottom: 2px;
}
.docs-features span {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* Code Window */
.code-window {
  background: #0c1017;
  border: 1px solid var(--border-bright);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}
.code-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: #090c12;
  border-bottom: 1px solid var(--border);
}
.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}
.dot-red { background: var(--red); }
.dot-yellow { background: var(--yellow); }
.dot-green { background: var(--green); }
.code-tab {
  margin-left: 12px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-muted);
}

.code-tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
  padding: 0 16px;
}
.tab {
  background: none;
  border: none;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 13px;
  padding: 12px 16px;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all 0.2s;
}
.tab:hover { color: var(--text-secondary); }
.tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.code-body {
  position: relative;
}
.code-block {
  display: none;
  padding: 24px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--text-primary);
}
.code-block.active { display: block; }

.c-key { color: #c792ea; }
.c-str { color: #c3e88d; }
.c-cmt { color: var(--text-muted); font-style: italic; }

/* --- Pricing --- */
.pricing {
  padding: 100px 24px;
  max-width: var(--max-width);
  margin: 0 auto;
}
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: start;
}
.price-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 36px 32px;
  transition: all 0.3s var(--ease);
  position: relative;
}
.price-card:hover {
  border-color: var(--border-bright);
  transform: translateY(-2px);
}
.price-featured {
  border-color: var(--accent);
  background: linear-gradient(180deg, rgba(0,229,209,0.05) 0%, var(--bg-card) 100%);
  box-shadow: 0 0 40px var(--accent-glow);
}
.price-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: #0a0e14;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 16px;
  border-radius: 100px;
  letter-spacing: 0.03em;
}

.price-name {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 16px;
}
.price-amount {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 8px;
}
.currency {
  font-size: 1.5rem;
  color: var(--text-secondary);
}
.amount {
  font-size: 3rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1;
}
.amount-text {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.period {
  font-size: 1rem;
  color: var(--text-muted);
}
.price-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 28px;
}

.price-features {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 32px;
}
.price-features li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 0.9rem;
  color: var(--text-secondary);
}
.price-features i {
  color: var(--accent);
  font-size: 18px;
  flex-shrink: 0;
  margin-top: 2px;
}

/* --- Community --- */
.community {
  padding: 100px 24px;
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.community-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.community-text .section-title { text-align: left; }
.community-text .section-desc { text-align: left; margin-bottom: 36px; }

.community-stats {
  display: flex;
  gap: 40px;
  margin-bottom: 36px;
}
.community-stats .stat-num {
  font-size: 2rem;
}
.community-stats .stat-label {
  font-size: 0.85rem;
}

.community-channels {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.channel {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all 0.25s var(--ease);
}
.channel:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-glow);
}
.channel i { font-size: 20px; }

.community-visual {
  position: relative;
}
.community-visual img {
  width: 100%;
  border-radius: 16px;
  border: 1px solid var(--border);
}

.community-float {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--bg-card);
  border: 1px solid var(--border-bright);
  border-radius: 12px;
  padding: 14px 18px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.3);
  backdrop-filter: blur(8px);
}
.community-float i {
  font-size: 24px;
  color: var(--accent);
  flex-shrink: 0;
}
.community-float strong {
  display: block;
  font-size: 0.85rem;
  margin-bottom: 2px;
}
.community-float span {
  font-size: 0.78rem;
  color: var(--text-muted);
}
.community-float-1 {
  top: 20px;
  left: -20px;
  animation: floatUp 4s ease-in-out infinite;
}
.community-float-2 {
  bottom: 20px;
  right: -20px;
  animation: floatUp 4s ease-in-out infinite 2s;
}
@keyframes floatUp {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

/* --- Enterprise --- */
.enterprise {
  padding: 100px 24px;
  max-width: var(--max-width);
  margin: 0 auto;
}
.enterprise-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
}
.enterprise-text {
  padding: 56px 48px;
}
.enterprise-text .section-title { text-align: left; margin-bottom: 16px; }
.enterprise-text .section-desc { text-align: left; margin-bottom: 32px; }

.enterprise-features {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.enterprise-features li {
  display: flex;
  gap: 12px;
  align-items: center;
  font-size: 0.95rem;
  color: var(--text-secondary);
}
.enterprise-features i {
  color: var(--accent);
  font-size: 22px;
  flex-shrink: 0;
}

.enterprise-form {
  padding: 56px 48px;
  background: var(--bg-elevated);
  border-left: 1px solid var(--border);
}
.enterprise-form h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 24px;
}
.form-group {
  margin-bottom: 18px;
}
.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 6px;
}
.form-group input,
.form-group select {
  width: 100%;
  padding: 12px 14px;
  background: var(--bg-base);
  border: 1px solid var(--border-bright);
  border-radius: 8px;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 14px;
  transition: border-color 0.2s;
}
.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--accent);
}
.form-group input::placeholder { color: var(--text-muted); }

.form-note {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 12px;
  text-align: center;
}

/* --- Footer --- */
.footer {
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  padding: 64px 24px 32px;
}
.footer-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}
.footer-brand p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-top: 16px;
  max-width: 280px;
}
.footer-col h4 {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 16px;
  letter-spacing: 0.03em;
}
.footer-col a {
  display: block;
  font-size: 0.875rem;
  color: var(--text-muted);
  padding: 5px 0;
  transition: color 0.2s;
}
.footer-col a:hover { color: var(--accent); }

.footer-bottom {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 32px;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
  gap: 16px;
}
.footer-bottom p {
  font-size: 0.85rem;
  color: var(--text-muted);
}
.footer-social {
  display: flex;
  gap: 16px;
}
.footer-social a {
  color: var(--text-muted);
  font-size: 20px;
  transition: color 0.2s;
}
.footer-social a:hover { color: var(--accent); }

/* --- Scroll Reveal --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .docs-layout { grid-template-columns: 1fr; gap: 48px; }
  .enterprise-card { grid-template-columns: 1fr; }
  .enterprise-text, .enterprise-form { padding: 40px 32px; }
  .enterprise-form { border-left: none; border-top: 1px solid var(--border); }
  .footer-grid { grid-template-columns: 2fr 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-cta { display: none; }
  .nav-toggle { display: block; }

  .hero { padding-top: 100px; }
  .hero-cta { flex-direction: column; align-items: center; }
  .hero-cta .btn-primary, .hero-cta .btn-ghost { width: 100%; justify-content: center; }

  .cap-grid { grid-template-columns: 1fr; }
  .cap-card-wide { grid-column: span 1; grid-template-columns: 1fr; }
  .cap-stat { align-items: flex-start; text-align: left; margin-top: 20px; }

  .pricing-grid { grid-template-columns: 1fr; }
  .price-featured { order: -1; }

  .community-grid { grid-template-columns: 1fr; gap: 48px; }
  .community-stats { flex-wrap: wrap; gap: 24px; }
  .community-float-1 { left: 10px; }
  .community-float-2 { right: 10px; }

  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer-brand { grid-column: span 2; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
  .footer-brand { grid-column: span 1; }
  .community-float { display: none; }
  .hero-badge { font-size: 11px; }
}

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