/* ========================================
   Barrd — barrd.com
   Dark theme, typographic, minimal
   IBM Plex family, blue-slate accents
   ======================================== */

:root {
  --bg: #0a0a0b;
  --bg-subtle: #0f1012;
  --bg-card: #141518;
  --bg-card-hover: #191a1f;
  --border: #1e2028;
  --border-light: #282a33;
  --text: #e8e9ed;
  --text-secondary: #9295a4;
  --text-dim: #6b6e80;
  --accent: #6e7bb8;
  --accent-bright: #8296c0;
  --accent-glow: rgba(110, 123, 184, 0.12);
  --accent-hover: #8296c0;
  --green: #4ade80;
  --radius: 12px;
  --radius-sm: 8px;

  --font-sans: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-serif: 'IBM Plex Serif', Georgia, 'Times New Roman', serif;
  --font-mono: 'IBM Plex Mono', 'SF Mono', 'Fira Code', monospace;
}

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

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

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

/* Skip link */
.skip-link {
  position: absolute;
  top: -100%;
  left: 16px;
  z-index: 200;
  padding: 8px 16px;
  background: var(--accent);
  color: white;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  text-decoration: none;
}

.skip-link:focus {
  top: 12px;
}

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

a { color: inherit; text-decoration: none; }

/* Focus — visible for keyboard, hidden for mouse */
:focus-visible {
  outline: 2px solid var(--accent-bright);
  outline-offset: 2px;
}

:focus:not(:focus-visible) {
  outline: none;
}

/* Container */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

.container-narrow {
  max-width: 720px;
}

/* ================================================================
   Nav
   ================================================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 14px 0;
  background: rgba(10, 10, 11, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

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

.logo {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-links a {
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: color 0.15s;
}

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

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

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 4px;
  line-height: 0;
}

.nav-toggle:hover { color: var(--text); }

.mobile-menu {
  display: none;
  flex-direction: column;
  padding: 8px 24px 16px;
  border-top: 1px solid var(--border);
  gap: 4px;
}

.mobile-menu a {
  display: block;
  padding: 14px 0;
  font-size: 0.9375rem;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
}

.mobile-menu a:last-child { border-bottom: none; }

.mobile-menu-cta {
  margin-top: 8px;
  text-align: center;
}

/* ================================================================
   Buttons
   ================================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  font-family: var(--font-sans);
  transition: background 0.15s, border-color 0.15s, color 0.15s;
  cursor: pointer;
  border: none;
  white-space: nowrap;
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.8125rem;
  background: var(--accent);
  color: white;
}

.btn-sm:hover { background: var(--accent-hover); }

.btn-primary {
  background: var(--accent);
  color: white;
}

.btn-primary:hover {
  background: var(--accent-hover);
}

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

.btn-ghost:hover {
  color: var(--text);
  border-color: var(--border-light);
  background: var(--bg-card);
}

.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--text-dim);
  width: 100%;
  justify-content: center;
}

.btn-outline:hover {
  border-color: var(--text-secondary);
  background: var(--bg-card);
}

.btn-lg {
  padding: 14px 28px;
  font-size: 1rem;
}

.arrow {
  transition: transform 0.15s;
}

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

/* ================================================================
   Hero — asymmetric split
   ================================================================ */
.hero {
  padding: 160px 0 100px;
}

.hero-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.hero-text {
  /* Left-aligned, not centered */
}

.hero-badge {
  display: inline-block;
  padding: 5px 12px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 500;
  font-family: var(--font-mono);
  color: var(--text-secondary);
  background: var(--bg-card);
  border: 1px solid var(--border);
  margin-bottom: 24px;
  letter-spacing: 0.01em;
}

.hero-headline {
  font-family: var(--font-serif);
  font-size: clamp(2.25rem, 4vw, 3.25rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 20px;
  color: var(--text);
}

.hero-sub {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  max-width: 460px;
  margin-bottom: 32px;
  line-height: 1.7;
}

.hero-ctas {
  display: flex;
  gap: 12px;
}

/* ================================================================
   Terminal
   ================================================================ */
.hero-visual {
  /* Right side of split */
}

.terminal {
  background: #0c0c0e;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  text-align: left;
}

.terminal-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 10px 16px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
}

.terminal-title {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--text-dim);
}

.terminal-body {
  padding: 20px 20px 28px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.9;
}

.line { white-space: pre; }
.line .dim { color: var(--text-dim); }
.line .accent { color: var(--accent-bright); }
.line .green { color: var(--green); }

/* Terminal animation */
.line-fade-in {
  opacity: 0;
  transform: translateY(4px);
  animation: lineFadeIn 0.4s ease forwards;
  animation-delay: var(--delay, 0s);
}

@keyframes lineFadeIn {
  to { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
  .line-fade-in {
    opacity: 1;
    transform: none;
    animation: none;
  }
}

/* ================================================================
   Sections
   ================================================================ */
.section {
  padding: 100px 0;
}

.section-alt {
  background: var(--bg-subtle);
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  text-align: center;
  margin-bottom: 16px;
}

.section-sub {
  text-align: center;
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: 56px;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

/* ================================================================
   How it works — vertical flow with connectors
   ================================================================ */
.flow {
  max-width: 560px;
  margin: 0 auto;
}

.flow-step {
  display: flex;
  gap: 24px;
}

.flow-marker {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex-shrink: 0;
}

.flow-number {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--border-light);
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.875rem;
  font-family: var(--font-mono);
  background: var(--bg-card);
}

.flow-line {
  width: 1px;
  flex: 1;
  background: var(--border);
  margin: 8px 0;
}

.flow-content {
  padding-bottom: 40px;
}

.flow-step:last-child .flow-content {
  padding-bottom: 0;
}

.flow-content h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.flow-content p {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.6;
}

/* ================================================================
   Features — split layout + asymmetric grid
   ================================================================ */

/* Split feature: text left, visual right */
.feature-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  margin-bottom: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--border);
}

.feature-label {
  font-size: 0.75rem;
  font-weight: 500;
  font-family: var(--font-mono);
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 12px;
}

.feature-split-text h3 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.feature-split-text p {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.7;
}

/* Code snippet */
.code-snippet {
  background: #0c0c0e;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 20px;
  overflow-x: auto;
}

.code-snippet pre { margin: 0; }

.code-snippet code {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.7;
}

.code-snippet .dim { color: var(--text-dim); }
.code-snippet .accent { color: var(--accent-bright); }
.code-snippet .string { color: var(--green); }
.code-snippet .keyword { color: #e0976e; }
.code-snippet .green { color: var(--green); }

/* Feature cards — asymmetric: first card spans 2 rows */
.features-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: auto auto;
  gap: 16px;
}

.feature-card {
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-card);
  transition: border-color 0.15s;
}

.feature-card:hover {
  border-color: var(--border-light);
}

.feature-card-tall {
  grid-row: 1 / 3;
}

.feature-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  background: var(--bg);
  color: var(--text-secondary);
  margin-bottom: 16px;
  border: 1px solid var(--border);
}

.feature-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.875rem;
  line-height: 1.6;
}

/* Detail tags in tall card */
.feature-detail {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.feature-detail span {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--text-dim);
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg);
}

/* ================================================================
   Social proof
   ================================================================ */
.section-proof {
  padding: 72px 0;
  border-bottom: 1px solid var(--border);
}

.proof-content {
  text-align: center;
}

.proof-stat {
  font-size: 0.8125rem;
  font-weight: 500;
  font-family: var(--font-mono);
  color: var(--accent-bright);
  margin-bottom: 12px;
  letter-spacing: 0.02em;
}

.proof-text {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 560px;
  margin: 0 auto 40px;
}

.proof-points {
  display: flex;
  justify-content: center;
  gap: 64px;
}

.proof-point {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.proof-value {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text);
}

.proof-label {
  font-size: 0.8125rem;
  color: var(--text-dim);
}

/* ================================================================
   Pricing
   ================================================================ */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  align-items: stretch;
}

.pricing-card {
  padding: 32px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-card);
  position: relative;
  display: flex;
  flex-direction: column;
}

.pricing-card-popular {
  border-color: var(--accent);
}

.pricing-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  padding: 4px 14px;
  background: var(--accent);
  color: white;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 999px;
  white-space: nowrap;
}

.pricing-tier {
  font-size: 0.9375rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text);
}

.pricing-price {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.pricing-period {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--text-secondary);
}

.pricing-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
  line-height: 1.5;
}

.pricing-features {
  list-style: none;
  margin-bottom: 28px;
  flex: 1;
}

.pricing-features li {
  padding: 8px 0;
  font-size: 0.875rem;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
}

.pricing-features li:last-child { border-bottom: none; }

.pricing-features li::before {
  content: "\2713  ";
  color: var(--green);
  font-weight: 600;
}

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

/* Enterprise row */
.pricing-enterprise {
  margin-top: 24px;
}

.pricing-enterprise-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  padding: 24px 32px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-card);
}

.pricing-enterprise h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.pricing-enterprise p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ================================================================
   FAQ
   ================================================================ */
.faq-list {
  display: flex;
  flex-direction: column;
}

.faq-item {
  border-bottom: 1px solid var(--border);
}

.faq-item:first-child {
  border-top: 1px solid var(--border);
}

.faq-item summary {
  padding: 20px 0;
  font-size: 0.9375rem;
  font-weight: 500;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--text);
  transition: color 0.15s;
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary::after {
  content: "+";
  font-size: 1.25rem;
  font-weight: 300;
  color: var(--text-dim);
  flex-shrink: 0;
  margin-left: 16px;
}

.faq-item[open] summary::after {
  content: "\2212";
}

.faq-item summary:hover { color: var(--accent-bright); }

.faq-item p {
  padding: 0 0 20px;
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.faq-item p a {
  color: var(--accent-bright);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.faq-item p a:hover { color: var(--text); }

/* ================================================================
   CTA — contained card
   ================================================================ */
.section-cta {
  padding: 80px 0 100px;
}

.cta-card {
  text-align: center;
  padding: 56px 48px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-card);
}

.cta-headline {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
  line-height: 1.3;
}

.cta-sub {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  margin-bottom: 24px;
  line-height: 1.6;
}

.cta-terminal {
  display: inline-block;
  padding: 8px 16px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  margin-bottom: 28px;
}

.cta-terminal code {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--text-dim);
}

.cta-terminal .dim { color: var(--text-dim); }

/* ================================================================
   Footer
   ================================================================ */
.footer {
  border-top: 1px solid var(--border);
  padding: 64px 0 32px;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  margin-bottom: 48px;
}

.footer-brand .logo {
  display: inline-block;
  margin-bottom: 8px;
}

.footer-tagline {
  color: var(--text-dim);
  font-size: 0.875rem;
}

.footer-links {
  display: flex;
  gap: 80px;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col h4 {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.footer-col a {
  font-size: 0.875rem;
  color: var(--text-dim);
  transition: color 0.15s;
  padding: 6px 0;
  display: inline-block;
}

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

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
}

.footer-bottom p {
  font-size: 0.8125rem;
  color: var(--text-dim);
}

/* ================================================================
   Responsive
   ================================================================ */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-right .btn-sm { display: none; }
  .nav-toggle { display: block; }
  .mobile-menu.open { display: flex; }

  .hero {
    padding: 120px 0 56px;
  }

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

  .hero-headline {
    font-size: 2rem;
  }

  .hero-sub {
    max-width: none;
  }

  .hero-ctas {
    flex-direction: column;
  }

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

  .feature-split {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .feature-split-text h3 {
    font-size: 1.25rem;
  }

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

  .feature-card-tall {
    grid-row: auto;
  }

  .feature-card {
    padding: 24px;
  }

  .proof-points {
    gap: 32px;
  }

  .proof-value {
    font-size: 1.5rem;
  }

  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin: 0 auto;
  }

  .pricing-card {
    padding: 24px;
  }

  .pricing-enterprise-inner {
    flex-direction: column;
    text-align: center;
    padding: 24px;
  }

  .footer-inner {
    flex-direction: column;
    gap: 32px;
  }

  .footer-links {
    gap: 40px;
    flex-wrap: wrap;
  }

  .terminal-body {
    font-size: 0.75rem;
    padding: 16px;
  }

  .section { padding: 72px 0; }

  .section-sub {
    margin-bottom: 40px;
  }

  .cta-card {
    padding: 40px 24px;
  }

  .section-cta {
    padding: 56px 0 72px;
  }

  .faq-item summary {
    font-size: 0.875rem;
    padding: 16px 0;
  }

  .faq-item p {
    font-size: 0.875rem;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .hero {
    padding: 100px 0 40px;
  }

  .hero-headline {
    font-size: 1.75rem;
  }

  .hero-sub {
    font-size: 0.9375rem;
    margin-bottom: 24px;
  }

  .section { padding: 48px 0; }
  .section-title { font-size: 1.375rem; }
  .section-sub { font-size: 0.875rem; margin-bottom: 32px; }

  .flow-step { gap: 16px; }
  .flow-content { padding-bottom: 28px; }
  .flow-content h3 { font-size: 1rem; }
  .flow-content p { font-size: 0.875rem; }

  .feature-card {
    padding: 20px;
  }

  .code-snippet {
    padding: 16px;
  }

  .code-snippet code {
    font-size: 0.75rem;
  }

  .proof-points {
    flex-direction: column;
    gap: 16px;
  }

  .proof-value {
    font-size: 1.375rem;
  }

  .section-proof {
    padding: 48px 0;
  }

  .pricing-grid {
    max-width: none;
  }

  .pricing-card {
    padding: 20px;
  }

  .pricing-price {
    font-size: 2rem;
  }

  .pricing-enterprise-inner {
    padding: 20px;
    gap: 16px;
  }

  .cta-card {
    padding: 32px 16px;
  }

  .cta-headline {
    font-size: 1.25rem;
  }

  .section-cta {
    padding: 40px 0 56px;
  }

  .footer {
    padding: 40px 0 24px;
  }

  .footer-inner {
    gap: 24px;
    margin-bottom: 32px;
  }

  .footer-links {
    gap: 24px;
  }

  .mobile-menu {
    padding: 8px 16px 16px;
  }
}