/* ============================================
   TENGU LABS — DESIGN SYSTEM
   Single source of truth for all site styling
   ============================================ */

:root {
  /* Surfaces */
  --bg: #0b0d10;
  --bg-elev: #14181c;
  --bg-elev-2: #1a1f24;

  /* Lines */
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.16);

  /* Text */
  --text: #e8e6e3;
  --text-dim: #8a8d92;
  --text-faint: #5a5d62;

  /* Accent — Tengu green, used sparingly */
  --accent: #00ff41;
  --accent-dim: rgba(0, 255, 65, 0.12);
  --accent-glow: rgba(0, 255, 65, 0.4);
  --warn: #d97757;
  --danger: #ff5555;

  /* Type */
  --sans: 'Geist', -apple-system, BlinkMacSystemFont, sans-serif;
  --mono: 'JetBrains Mono', 'Fira Code', monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  min-height: 100vh;
}

/* Atmospheric depth */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 40% at 50% 0%, rgba(0, 255, 65, 0.04), transparent 60%),
    radial-gradient(ellipse 40% 30% at 100% 40%, rgba(60, 80, 120, 0.06), transparent 60%);
  pointer-events: none;
  z-index: 0;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
  position: relative;
  z-index: 1;
}

.container-narrow {
  max-width: 880px;
  margin: 0 auto;
  padding: 0 32px;
  position: relative;
  z-index: 1;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }

/* ───────────── NAV ───────────── */
nav.site-nav {
  position: sticky;
  top: 0;
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  background: rgba(11, 13, 16, 0.7);
  border-bottom: 1px solid var(--line);
  z-index: 100;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 17px;
  letter-spacing: -0.01em;
  color: var(--text);
}

.logo-mark {
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo-mark svg { width: 100%; height: 100%; }

.nav-links {
  display: flex;
  gap: 36px;
  align-items: center;
}

.nav-links a {
  color: var(--text-dim);
  font-size: 14px;
  font-weight: 400;
  transition: color 0.15s;
}

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

.nav-cta {
  border: 1px solid var(--accent);
  color: var(--accent) !important;
  padding: 9px 18px;
  border-radius: 2px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: all 0.15s;
  text-transform: uppercase;
}

.nav-cta:hover {
  background: var(--accent);
  color: var(--bg) !important;
}

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

/* ───────────── HERO ───────────── */
.hero {
  padding: 120px 0 100px;
  position: relative;
}

.hero-narrow { padding: 100px 0 80px; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 28px;
}

.eyebrow::before {
  content: '';
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 12px var(--accent-glow);
  animation: pulse 2s ease-in-out infinite;
}

.eyebrow-dim {
  color: var(--text-faint);
}

.eyebrow-dim::before {
  background: var(--text-faint);
  box-shadow: none;
  animation: none;
}

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

h1.display {
  font-size: clamp(48px, 7vw, 92px);
  line-height: 0.98;
  letter-spacing: -0.035em;
  font-weight: 500;
  margin-bottom: 32px;
  max-width: 14ch;
}

h1.display em,
h2.display em,
.display em {
  font-style: normal;
  color: var(--text-dim);
  font-weight: 300;
}

.hero-sub {
  font-size: 19px;
  line-height: 1.55;
  color: var(--text-dim);
  max-width: 56ch;
  margin-bottom: 48px;
  font-weight: 400;
}

.hero-ctas {
  display: flex;
  gap: 16px;
  align-items: center;
  margin-bottom: 80px;
  flex-wrap: wrap;
}

/* ───────────── BUTTONS ───────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: 2px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.01em;
  transition: all 0.15s;
  cursor: pointer;
  border: 1px solid transparent;
  font-family: var(--sans);
}

.btn-primary {
  background: var(--accent);
  color: var(--bg);
  font-weight: 600;
}

.btn-primary:hover {
  background: #00cc34;
  box-shadow: 0 0 24px var(--accent-glow);
}

.btn-ghost {
  color: var(--text);
  border-color: var(--line-strong);
  background: transparent;
}

.btn-ghost:hover {
  border-color: var(--text);
}

.btn-block { width: 100%; justify-content: center; }

.btn .arrow {
  transition: transform 0.15s;
}

.btn:hover .arrow { transform: translateX(4px); }

/* ───────────── HERO META STRIP ───────────── */
.hero-meta {
  display: flex;
  gap: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  color: var(--text-dim);
  flex-wrap: wrap;
}

.hero-meta .stat-num {
  color: var(--text);
  font-weight: 500;
  font-size: 26px;
  font-family: var(--mono);
  display: block;
  margin-bottom: 4px;
  letter-spacing: -0.02em;
}

/* ───────────── MARQUEE ───────────── */
.marquee {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 18px 0;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.015);
}

.marquee-track {
  display: flex;
  gap: 56px;
  white-space: nowrap;
  animation: scroll 60s linear infinite;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--text-faint);
  text-transform: uppercase;
  width: max-content;
}

.marquee-track span {
  display: inline-flex;
  align-items: center;
  gap: 56px;
}

.marquee-track span::after {
  content: '·';
  color: var(--accent);
  opacity: 0.5;
}

@keyframes scroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ───────────── SECTIONS ───────────── */
section.block { padding: 120px 0; position: relative; }
section.block-tight { padding: 80px 0; position: relative; }
section.block-elev { background: var(--bg-elev); }

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 24px;
}

.section-label::before {
  content: '';
  width: 24px;
  height: 1px;
  background: var(--text-faint);
}

.section-heading {
  font-size: clamp(36px, 4.5vw, 58px);
  line-height: 1.05;
  letter-spacing: -0.025em;
  font-weight: 500;
  max-width: 18ch;
  margin-bottom: 80px;
}

.section-heading-center { margin-left: auto; margin-right: auto; text-align: center; }

.section-lede {
  font-size: 18px;
  line-height: 1.65;
  color: var(--text-dim);
  max-width: 60ch;
  margin-bottom: 64px;
}

/* ───────────── PILLAR GRID ───────────── */
.pillars {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.pillar {
  background: var(--bg);
  padding: 56px 48px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  transition: background 0.2s;
}

.pillar:hover { background: var(--bg-elev); }

.pillar-num {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--accent);
  letter-spacing: 0.1em;
}

.pillar h3 {
  font-size: 26px;
  font-weight: 500;
  letter-spacing: -0.015em;
  line-height: 1.2;
}

.pillar p {
  color: var(--text-dim);
  font-size: 15px;
  line-height: 1.65;
  max-width: 44ch;
}

/* ───────────── PRODUCT CARDS ───────────── */
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.product-card {
  background: var(--bg);
  border: 1px solid var(--line);
  padding: 36px 32px;
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  transition: all 0.2s;
  position: relative;
  overflow: hidden;
}

.product-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.product-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-faint);
  align-self: flex-start;
}

.product-status.live { color: var(--accent); }

.product-status .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

.product-card h3 {
  font-size: 28px;
  font-weight: 500;
  letter-spacing: -0.02em;
  margin-top: 8px;
}

.product-card p {
  color: var(--text-dim);
  font-size: 14px;
  line-height: 1.6;
  flex-grow: 1;
}

.product-link {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-top: 1px solid var(--line);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

/* ───────────── TERMINAL SNIPPETS ───────────── */
.terminal-snippet {
  background: var(--bg-elev-2);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 14px 16px;
  font-family: var(--mono);
  font-size: 11px;
  line-height: 1.7;
  color: var(--text-dim);
}

.terminal-snippet .prompt { color: var(--accent); }
.terminal-snippet .check { color: var(--accent); }
.terminal-snippet .comment { color: var(--text-faint); }

/* Larger terminal display for product hero */
.terminal-display {
  background: var(--bg-elev-2);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 24px 28px;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.8;
  color: var(--text-dim);
  margin: 48px 0;
}

.terminal-display .prompt { color: var(--accent); }
.terminal-display .check { color: var(--accent); }
.terminal-display .comment { color: var(--text-faint); }
.terminal-display .arrow { color: var(--text); }

.terminal-display::before {
  content: '● ● ●';
  display: block;
  color: var(--text-faint);
  letter-spacing: 8px;
  font-size: 10px;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

/* ───────────── FEATURE GRID ───────────── */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.feature {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 32px 0;
  border-top: 1px solid var(--line);
}

.feature-num {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-faint);
  letter-spacing: 0.15em;
}

.feature h4 {
  font-size: 20px;
  font-weight: 500;
  letter-spacing: -0.015em;
}

.feature p {
  color: var(--text-dim);
  font-size: 14px;
  line-height: 1.6;
}

/* ───────────── PRICING ───────────── */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.pricing-tier {
  background: var(--bg);
  border: 1px solid var(--line);
  padding: 40px 32px;
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  position: relative;
}

.pricing-tier.featured {
  border-color: var(--accent);
}

.pricing-tier.featured::before {
  content: 'Most popular';
  position: absolute;
  top: -10px;
  left: 32px;
  background: var(--accent);
  color: var(--bg);
  font-family: var(--mono);
  font-size: 10px;
  padding: 4px 10px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  font-weight: 600;
  border-radius: 2px;
}

.pricing-tier h3 {
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -0.01em;
}

.pricing-amount {
  font-size: 48px;
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 1;
}

.pricing-amount .per {
  font-size: 14px;
  color: var(--text-dim);
  font-weight: 400;
  margin-left: 4px;
}

.pricing-tier ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 16px 0;
  flex-grow: 1;
}

.pricing-tier li {
  font-size: 14px;
  color: var(--text-dim);
  padding-left: 22px;
  position: relative;
  line-height: 1.5;
}

.pricing-tier li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-family: var(--mono);
}

.pricing-tier li.muted::before {
  content: '—';
  color: var(--text-faint);
}

/* ───────────── TRUST STRIP ───────────── */
.trust {
  padding: 80px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.trust-label {
  text-align: center;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 36px;
}

.trust-logos {
  display: flex;
  justify-content: center;
  gap: 80px;
  align-items: center;
  flex-wrap: wrap;
  opacity: 0.7;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--text-dim);
  letter-spacing: 0.05em;
}

/* ───────────── BIG CTA BLOCK ───────────── */
.cta-block {
  padding: 140px 0;
  text-align: center;
  border-bottom: 1px solid var(--line);
}

.cta-block h2 {
  font-size: clamp(40px, 5vw, 68px);
  line-height: 1.05;
  letter-spacing: -0.03em;
  font-weight: 500;
  margin-bottom: 24px;
}

.cta-block h2 em {
  font-style: normal;
  color: var(--accent);
  font-weight: 500;
}

.cta-block p {
  color: var(--text-dim);
  font-size: 18px;
  margin-bottom: 40px;
  max-width: 52ch;
  margin-left: auto;
  margin-right: auto;
}

.cta-block .hero-ctas {
  justify-content: center;
  margin-bottom: 0;
}

/* ───────────── FORMS ───────────── */
.form-block {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 48px;
}

.form-group {
  margin-bottom: 24px;
}

.form-group label {
  display: block;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 10px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 12px 16px;
  font-family: var(--sans);
  font-size: 15px;
  color: var(--text);
  transition: border-color 0.15s;
}

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

.form-group textarea {
  resize: vertical;
  min-height: 120px;
  font-family: var(--sans);
}

/* ───────────── CONTACT METHODS ───────────── */
.contact-methods {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  margin: 80px 0;
}

.contact-method {
  background: var(--bg);
  padding: 40px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.contact-method-label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-faint);
}

.contact-method-value {
  font-size: 18px;
  color: var(--text);
}

.contact-method a {
  color: var(--accent);
  font-family: var(--mono);
  font-size: 14px;
  letter-spacing: 0.02em;
  border-bottom: 1px solid transparent;
  transition: border-color 0.15s;
}

.contact-method a:hover { border-bottom-color: var(--accent); }

/* ───────────── ABOUT PAGE ───────────── */
.about-prose {
  font-size: 19px;
  line-height: 1.75;
  color: var(--text);
  font-weight: 300;
  max-width: 64ch;
}

.about-prose p { margin-bottom: 28px; }

.about-prose strong {
  color: var(--text);
  font-weight: 500;
}

.about-prose em {
  font-style: normal;
  color: var(--accent);
}

.about-credentials {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  margin: 64px 0;
}

.about-cred {
  background: var(--bg);
  padding: 36px;
}

.about-cred-label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 12px;
}

.about-cred-value {
  font-size: 18px;
  color: var(--text);
  line-height: 1.5;
}

/* ───────────── COMING SOON / FISSURE ───────────── */
.coming-soon-hero {
  padding: 140px 0 100px;
  text-align: center;
}

.coming-soon-hero h1 {
  font-size: clamp(60px, 9vw, 140px);
  font-weight: 300;
  letter-spacing: -0.04em;
  line-height: 0.95;
  margin-bottom: 32px;
}

.coming-soon-hero h1 em {
  font-style: normal;
  color: var(--accent);
  font-weight: 500;
}

.signup-form {
  display: flex;
  gap: 12px;
  max-width: 480px;
  margin: 0 auto;
}

.signup-form input {
  flex: 1;
  background: var(--bg);
  border: 1px solid var(--line-strong);
  border-radius: 3px;
  padding: 14px 18px;
  font-family: var(--sans);
  font-size: 15px;
  color: var(--text);
}

.signup-form input:focus {
  outline: none;
  border-color: var(--accent);
}

/* ───────────── FOOTER ───────────── */
footer.site-footer {
  padding: 80px 0 40px;
  background: var(--bg);
  border-top: 1px solid var(--line);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 80px;
}

.footer-brand p {
  color: var(--text-dim);
  font-size: 13px;
  margin-top: 18px;
  max-width: 32ch;
  line-height: 1.6;
}

.footer-col h4 {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 20px;
  font-weight: 500;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-col a {
  color: var(--text-dim);
  font-size: 14px;
  transition: color 0.15s;
}

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

.footer-bottom {
  padding-top: 32px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-faint);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ───────────── UTILITIES ───────────── */
.text-accent { color: var(--accent); }
.text-dim { color: var(--text-dim); }
.mt-2 { margin-top: 32px; }
.mt-4 { margin-top: 64px; }
.mb-2 { margin-bottom: 32px; }
.mb-4 { margin-bottom: 64px; }

/* ───────────── RESPONSIVE ───────────── */
@media (max-width: 900px) {
  .nav-toggle { display: block; }
  .nav-links { 
    display: none; 
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    padding: 24px 32px;
    gap: 16px;
    align-items: flex-start;
  }
  .nav-links.open { display: flex; }
  .nav-links .nav-cta { align-self: stretch; text-align: center; }

  .pillars,
  .about-credentials,
  .contact-methods { grid-template-columns: 1fr; }
  .pillar,
  .about-cred,
  .contact-method { padding: 36px 28px; }

  .product-grid,
  .feature-grid,
  .pricing-grid { grid-template-columns: 1fr; }

  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }

  .hero,
  .coming-soon-hero { padding: 60px 0; }
  .hero-meta { gap: 24px; }
  section.block { padding: 60px 0; }
  .cta-block { padding: 80px 0; }

  .container,
  .container-narrow { padding: 0 20px; }

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

  .signup-form { flex-direction: column; }
}