/* ============================================================
   Engineering Skill Warehouse — Design System
   "Structured Intelligence"
   ============================================================ */

/* --- CSS Custom Properties --- */
:root {
  /* Colors */
  --color-navy: #0b1120;
  --color-navy-light: #131c31;
  --color-slate: #1e293b;
  --color-blue: #4361ee;
  --color-blue-light: #5b7bf5;
  --color-cyan: #22d3ee;
  --color-cyan-dim: rgba(34, 211, 238, 0.15);
  --color-white: #fafaf9;
  --color-stone: #f5f3f0;
  --color-graphite: #475569;
  --color-fog: #94a3b8;
  --color-border: #e2e8f0;
  --color-border-light: #f1f5f9;

  /* Typography */
  --font-display: 'DM Serif Display', Georgia, 'Times New Roman', serif;
  --font-body: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;

  /* Type Scale */
  --text-xs: 0.8125rem;    /* 13px */
  --text-sm: 0.9375rem;    /* 15px */
  --text-base: 1.0625rem;  /* 17px */
  --text-lg: 1.1875rem;    /* 19px */
  --text-xl: 1.375rem;     /* 22px */
  --text-2xl: 1.75rem;     /* 28px */
  --text-3xl: 2.25rem;     /* 36px */
  --text-4xl: 3rem;        /* 48px */
  --text-5xl: 3.75rem;     /* 60px */

  /* Spacing */
  --space-section: 7.5rem;
  --space-container: 5rem;
  --space-gutter: 1.5rem;
  --max-width: 1200px;
  --max-width-narrow: 860px;

  /* Radii */
  --radius-sm: 0.375rem;
  --radius-md: 0.625rem;
  --radius-lg: 0.875rem;

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --duration-fast: 150ms;
  --duration-normal: 300ms;
  --duration-slow: 600ms;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--color-graphite);
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
}

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

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

button {
  font: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

ul, ol {
  list-style: none;
}

pre, code {
  font-family: var(--font-mono);
}

/* Focus visible */
:focus-visible {
  outline: 2px solid var(--color-blue);
  outline-offset: 2px;
}

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

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  transition: background var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
  padding: 0 var(--space-gutter);
}

.nav.scrolled {
  background: rgba(250, 250, 249, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--color-border-light);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4rem;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-weight: 600;
  color: var(--color-white);
  transition: color var(--duration-normal) var(--ease-out);
}

.nav.scrolled .nav-brand {
  color: var(--color-navy);
}

.nav-logo {
  width: auto;
  height: 36px;
  flex-shrink: 0;
}

.nav-title {
  font-size: var(--text-sm);
  letter-spacing: -0.01em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-link {
  padding: 0.5rem 0.875rem;
  font-size: var(--text-sm);
  font-weight: 500;
  color: rgba(255, 255, 255, 0.7);
  border-radius: var(--radius-sm);
  transition: color var(--duration-fast) var(--ease-out),
              background var(--duration-fast) var(--ease-out);
  letter-spacing: -0.01em;
}

.nav.scrolled .nav-link {
  color: var(--color-fog);
}

.nav-link:hover {
  color: var(--color-white);
  background: rgba(255, 255, 255, 0.08);
}

.nav.scrolled .nav-link:hover {
  color: var(--color-navy);
  background: var(--color-border-light);
}

.nav-link-arrow {
  font-size: 0.75rem;
  margin-left: 0.125rem;
}

/* --- Hero Section --- */
.hero {
  position: relative;
  background: var(--color-navy);
  color: var(--color-white);
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 6rem var(--space-gutter) 5rem;
}

.hero-diagram {
  position: absolute;
  inset: 0;
  pointer-events: none;
  user-select: none;
}

.hero-svg {
  width: 100%;
  height: 100%;
  opacity: 0.7;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: var(--max-width);
  margin: 0 auto;
  width: 100%;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 0.875rem;
  background: rgba(67, 97, 238, 0.12);
  border: 1px solid rgba(67, 97, 238, 0.25);
  border-radius: 9999px;
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-blue-light);
  letter-spacing: 0.02em;
  margin-bottom: 2rem;
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-blue);
  animation: badge-pulse 2s ease-in-out infinite;
}

@keyframes badge-pulse {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 5vw, var(--text-5xl));
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--color-white);
  margin-bottom: 1.5rem;
  max-width: 720px;
}

.hero-highlight {
  background: linear-gradient(135deg, var(--color-blue), var(--color-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: var(--text-lg);
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.6);
  max-width: 620px;
  margin-bottom: 2.25rem;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 3.5rem;
  flex-wrap: wrap;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--duration-fast) var(--ease-out);
  letter-spacing: -0.01em;
}

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

.btn-primary:hover {
  background: var(--color-blue-light);
  transform: translateY(-1px);
}

.btn-arrow {
  font-size: 0.875rem;
  transition: transform var(--duration-fast) var(--ease-out);
}

.btn-primary:hover .btn-arrow {
  transform: translateY(2px);
}

.btn-ghost {
  color: rgba(255, 255, 255, 0.8);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-ghost:hover {
  color: var(--color-white);
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.2);
}

/* Terminal in Hero */
.hero-terminal {
  max-width: 580px;
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid rgba(34, 211, 238, 0.12);
  border-radius: var(--radius-lg);
  overflow: hidden;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.terminal-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

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

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

.terminal-title {
  margin-left: 0.5rem;
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.35);
  font-family: var(--font-mono);
  font-weight: 400;
}

.terminal-copy {
  margin-left: auto;
  color: rgba(255, 255, 255, 0.3);
  padding: 0.25rem;
  border-radius: 0.25rem;
  transition: all var(--duration-fast) var(--ease-out);
  display: flex;
  align-items: center;
  justify-content: center;
}

.terminal-copy:hover {
  color: rgba(255, 255, 255, 0.7);
  background: rgba(255, 255, 255, 0.08);
}

.terminal-copy.copied {
  color: var(--color-cyan);
}

.terminal-code {
  padding: 1.25rem 1.25rem;
  font-size: var(--text-xs);
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.65);
  overflow-x: auto;
  white-space: pre;
}

.code-key {
  color: rgba(34, 211, 238, 0.7);
}

.code-string {
  color: rgba(245, 158, 11, 0.7);
}

/* --- Stats Bar --- */
.stats-bar {
  background: var(--color-navy-light);
  border-top: 1px solid rgba(34, 211, 238, 0.08);
  border-bottom: 1px solid rgba(34, 211, 238, 0.08);
  padding: 0 var(--space-gutter);
}

.stats-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 3rem;
  padding: 2rem 0;
}

.stat {
  text-align: center;
}

.stat-number {
  display: block;
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  color: var(--color-white);
  line-height: 1;
  margin-bottom: 0.375rem;
}

.stat-label {
  font-size: var(--text-xs);
  color: var(--color-fog);
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.stat-divider {
  width: 1px;
  height: 2.5rem;
  background: rgba(34, 211, 238, 0.12);
}

/* --- Sections --- */
.section {
  padding: var(--space-section) var(--space-gutter);
}

.section-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.section-label {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-blue);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 1rem;
}

.section-heading {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.5vw, var(--text-3xl));
  font-weight: 400;
  line-height: 1.25;
  color: var(--color-navy);
  letter-spacing: -0.02em;
  margin-bottom: 3rem;
}

/* --- Overview Section --- */
.overview-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
  align-items: start;
}

.overview-text p {
  font-size: var(--text-base);
  line-height: 1.8;
  color: var(--color-graphite);
  margin-bottom: 1rem;
}

.overview-text p:last-child {
  margin-bottom: 0;
}

.overview-text strong {
  color: var(--color-navy);
  font-weight: 600;
}

.overview-text em {
  font-style: italic;
  color: var(--color-fog);
}

.overview-principles {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.principle {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.125rem 1.25rem;
  background: var(--color-stone);
  border-radius: var(--radius-md);
  transition: background var(--duration-fast) var(--ease-out);
}

.principle:hover {
  background: #ece9e4;
}

.principle-icon {
  font-size: 1.25rem;
  color: var(--color-blue);
  flex-shrink: 0;
  margin-top: 0.125rem;
}

.principle-text {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.principle-text strong {
  font-size: var(--text-sm);
  color: var(--color-navy);
  font-weight: 600;
}

.principle-text span {
  font-size: var(--text-xs);
  color: var(--color-fog);
}

/* --- Capabilities Section --- */
.capabilities {
  background: var(--color-stone);
}

.capabilities-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.capability-card {
  background: var(--color-white);
  padding: 2rem;
  border-radius: var(--radius-md);
  transition: transform var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
}

.capability-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
}

.capability-icon {
  color: var(--color-blue);
  margin-bottom: 1.25rem;
}

.capability-title {
  font-family: var(--font-body);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-navy);
  margin-bottom: 0.75rem;
  letter-spacing: -0.01em;
}

.capability-desc {
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-graphite);
  margin-bottom: 1.25rem;
}

.capability-link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-blue);
  transition: color var(--duration-fast) var(--ease-out);
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.capability-link:hover {
  color: var(--color-blue-light);
}

/* --- Configure Section --- */
.configure {
  background: var(--color-navy);
  color: var(--color-white);
}

.configure .section-label {
  color: var(--color-cyan-dim);
  color: var(--color-cyan);
}

.configure .section-heading {
  color: var(--color-white);
}

.configure-desc {
  font-size: var(--text-base);
  color: rgba(255, 255, 255, 0.55);
  max-width: 540px;
  margin-bottom: 2.5rem;
  line-height: 1.7;
}

.configure-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.configure-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.configure-card-code {
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid rgba(34, 211, 238, 0.1);
}

.configure-card-code .terminal-header {
  padding: 0.75rem 1.25rem;
  background: rgba(255, 255, 255, 0.02);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.configure-card-code .terminal-code {
  padding: 1.5rem 1.25rem;
  font-size: var(--text-xs);
  line-height: 2;
}

.configure-card-download {
  background: rgba(67, 97, 238, 0.08);
  border: 1px solid rgba(67, 97, 238, 0.15);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2.5rem 2rem;
}

.download-icon {
  color: var(--color-blue-light);
  margin-bottom: 1.25rem;
  opacity: 0.8;
}

.download-title {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 0.5rem;
}

.download-desc {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 1.5rem;
}

.download-hint {
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.3);
  margin-top: 1rem;
}

.configure-card-download .btn-primary {
  background: var(--color-blue);
}

.configure-platforms {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.platforms-label {
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.35);
  letter-spacing: 0.03em;
}

.platforms-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.platform-badge {
  padding: 0.375rem 0.75rem;
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.5);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 9999px;
  font-weight: 500;
  letter-spacing: -0.01em;
}

/* --- Footer --- */
.footer {
  background: var(--color-navy-light);
  border-top: 1px solid rgba(34, 211, 238, 0.08);
  padding: 4rem var(--space-gutter) 2rem;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 2.5rem;
  color: rgba(255, 255, 255, 0.6);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: -0.01em;
}

.footer-logo {
  width: auto;
  height: 28px;
  flex-shrink: 0;
}

.footer-domain {
  color: rgba(255, 255, 255, 0.3);
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  font-weight: 400;
  margin-left: 0.5rem;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  margin-bottom: 3rem;
  max-width: 400px;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.footer-col-title {
  font-size: var(--text-xs);
  font-weight: 600;
  color: rgba(255, 255, 255, 0.35);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.25rem;
}

.footer-col a {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.5);
  transition: color var(--duration-fast) var(--ease-out);
}

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

.footer-bottom {
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.25);
}

/* Footer Contact */
.footer-contact {
  display: flex;
  justify-content: flex-end;
  align-items: center;
}

.btn-contact {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.95rem 2.25rem;
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-white);
  background: linear-gradient(135deg, var(--color-blue), var(--color-blue-light));
  border: none;
  border-radius: var(--radius-md);
  letter-spacing: 0.01em;
  box-shadow: 0 6px 20px rgba(67, 97, 238, 0.4),
              0 0 0 1px rgba(34, 211, 238, 0.25) inset;
  transition: all var(--duration-fast) var(--ease-out);
}

.btn-contact::after {
  content: '→';
  font-size: 1.05rem;
  font-weight: 700;
  transition: transform var(--duration-fast) var(--ease-out);
}

.btn-contact:hover {
  background: linear-gradient(135deg, var(--color-blue-light), var(--color-cyan));
  box-shadow: 0 10px 28px rgba(67, 97, 238, 0.55),
              0 0 0 1px rgba(34, 211, 238, 0.4) inset;
  transform: translateY(-2px);
}

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

/* --- Responsive --- */
@media (max-width: 1024px) {
  .capabilities-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (max-width: 768px) {
  :root {
    --space-section: 4.5rem;
  }

  .hero {
    padding: 5rem var(--space-gutter) 3rem;
    min-height: auto;
  }

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

  .hero-subtitle {
    font-size: var(--text-base);
  }

  .hero-actions {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero-terminal {
    max-width: 100%;
  }

  .stats-inner {
    gap: 1.5rem;
    padding: 1.5rem 0;
  }

  .stat-number {
    font-size: 1.75rem;
  }

  .section-heading {
    font-size: 1.5rem;
  }

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

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

  .configure-platforms {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

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

  .nav-title {
    display: none;
  }

  .nav-link {
    font-size: 0.8125rem;
    padding: 0.5rem 0.625rem;
  }
}

@media (max-width: 480px) {
  :root {
    --space-section: 3.5rem;
  }

  .hero-headline {
    font-size: 1.625rem;
  }

  .terminal-code {
    font-size: 0.6875rem;
    padding: 1rem;
  }

  .capability-card {
    padding: 1.5rem;
  }

  .configure-card-download {
    padding: 1.75rem 1.25rem;
  }

  .footer-links {
    grid-template-columns: 1fr;
  }
}

/* ============================================================
   Hero Agent Entry Cards
   ============================================================ */
.hero-agents {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  max-width: 600px;
  margin-top: 2rem;
}

.hero-agent-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  padding: 1.25rem 1rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  transition: all var(--duration-normal) var(--ease-out);
  text-align: center;
}

.hero-agent-card:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(67, 97, 238, 0.3);
  transform: translateY(-3px);
}

.hero-agent-icon {
  font-size: 1.5rem;
  color: var(--color-cyan);
  opacity: 0.7;
}

.hero-agent-name {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-white);
  letter-spacing: -0.01em;
}

.hero-agent-role {
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.4);
}

/* ============================================================
   Stats Bar
   ============================================================ */
.stat-plus {
  font-size: 0.6em;
  vertical-align: super;
  opacity: 0.6;
}

/* ============================================================
   Warehouse Concept Section
   ============================================================ */
.warehouse {
  background: var(--color-white);
}

.warehouse-compare {
  margin-bottom: 3.5rem;
}

.compare-table {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.compare-row {
  display: grid;
  grid-template-columns: 130px 1fr 1fr;
}

.compare-row:not(:last-child) {
  border-bottom: 1px solid var(--color-border-light);
}

.compare-header {
  background: var(--color-navy);
}

.compare-header .compare-cell {
  color: var(--color-white);
  font-weight: 600;
  font-size: var(--text-xs);
  letter-spacing: 0.03em;
  padding: 0.875rem 1.25rem;
}

.compare-cell {
  padding: 1rem 1.25rem;
  font-size: var(--text-sm);
  color: var(--color-graphite);
  line-height: 1.5;
}

.compare-label {
  font-weight: 600;
  color: var(--color-navy);
  font-size: var(--text-xs);
  letter-spacing: 0.02em;
  background: var(--color-stone);
}

.compare-cell-highlight {
  background: rgba(67, 97, 238, 0.03);
  color: var(--color-blue);
  font-weight: 500;
}

/* Warehouse detail: two-column blocks */
.warehouse-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.warehouse-block {
  padding: 2rem;
  background: var(--color-stone);
  border-radius: var(--radius-lg);
}

.warehouse-block-icon {
  color: var(--color-blue);
  margin-bottom: 1rem;
}

.warehouse-block-title {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-navy);
  margin-bottom: 0.75rem;
  letter-spacing: -0.01em;
}

.warehouse-block-desc {
  font-size: var(--text-sm);
  color: var(--color-graphite);
  line-height: 1.7;
  margin-bottom: 1rem;
}

.warehouse-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.warehouse-list li {
  font-size: var(--text-sm);
  color: var(--color-graphite);
  line-height: 1.6;
  padding-left: 0.75rem;
  position: relative;
}

.warehouse-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--color-blue);
  opacity: 0.5;
}

.warehouse-list li strong {
  color: var(--color-navy);
  font-weight: 600;
}

/* Flow diagram */
.warehouse-flow {
  margin-top: 1.25rem;
}

.flow-row {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.flow-row-target {
  margin-top: 0.25rem;
}

.flow-node {
  padding: 0.375rem 0.75rem;
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-graphite);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 9999px;
}

.flow-node-ba {
  color: var(--color-blue);
  border-color: rgba(67, 97, 238, 0.3);
  background: rgba(67, 97, 238, 0.06);
}

.flow-node-sa {
  color: #9333ea;
  border-color: rgba(147, 51, 234, 0.3);
  background: rgba(147, 51, 234, 0.06);
}

.flow-node-pm {
  color: #059669;
  border-color: rgba(5, 150, 105, 0.3);
  background: rgba(5, 150, 105, 0.06);
}

.flow-arrows {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin: 0.375rem 0;
}

.flow-arrow {
  font-size: var(--text-xs);
  color: var(--color-fog);
  font-family: var(--font-mono);
}

/* ============================================================
   Agents Overview Section
   ============================================================ */
.agents-overview {
  background: var(--color-stone);
}

.agents-overview-desc {
  font-size: var(--text-base);
  color: var(--color-graphite);
  max-width: 680px;
  line-height: 1.7;
  margin-bottom: 2.5rem;
}

.agents-summary {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.agent-summary-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 2rem;
  background: var(--color-white);
  border-radius: var(--radius-md);
  transition: transform var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
}

.agent-summary-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
}

.agent-summary-icon {
  font-size: 2rem;
  color: var(--color-blue);
  margin-bottom: 1rem;
}

.agent-summary-name {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-navy);
  margin-bottom: 0.25rem;
  letter-spacing: -0.01em;
}

.agent-summary-role {
  font-size: var(--text-xs);
  color: var(--color-fog);
  font-weight: 500;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.agent-summary-desc {
  font-size: var(--text-xs);
  color: var(--color-graphite);
  line-height: 1.6;
  margin-bottom: 1.25rem;
  flex: 1;
}

.agent-summary-link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-blue);
  transition: color var(--duration-fast) var(--ease-out);
}

.agent-summary-link:hover {
  color: var(--color-blue-light);
}

/* ============================================================
   Agent Detail Sections
   ============================================================ */
.agent-detail {
  background: var(--color-white);
}

.agent-detail:nth-child(even) {
  background: var(--color-stone);
}

.agent-sa {
  background: var(--color-stone);
}

.agent-pm {
  background: var(--color-white);
}

.agent-role {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: start;
  margin-bottom: 3rem;
}

.agent-role-text p {
  font-size: var(--text-base);
  line-height: 1.8;
  color: var(--color-graphite);
  margin-bottom: 1rem;
}

.agent-role-text p:last-child {
  margin-bottom: 0;
}

.agent-role-text strong {
  color: var(--color-navy);
  font-weight: 600;
}

.agent-role-text em {
  font-style: italic;
  color: var(--color-fog);
}

.agent-role-flow {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 1.5rem;
  background: var(--color-stone);
  border-radius: var(--radius-md);
}

.flow-step {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-navy);
}

.flow-step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--color-blue);
  color: var(--color-white);
  font-size: var(--text-xs);
  font-weight: 600;
  flex-shrink: 0;
}

.flow-step-arrow {
  color: var(--color-fog);
  font-size: var(--text-sm);
}

.agent-capabilities-title {
  font-family: var(--font-body);
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--color-navy);
  margin-bottom: 1.5rem;
  letter-spacing: -0.01em;
}

/* Agent config row (MCP code + download button) */
.agent-config {
  display: flex;
  align-items: stretch;
  gap: 1.5rem;
  margin-top: 2.5rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--color-border);
}

.agent-sa .agent-config,
.agent-pm .agent-config {
  border-top-color: var(--color-border);
}

.agent-config-code {
  flex: 1;
  background: var(--color-navy);
  border: 1px solid rgba(34, 211, 238, 0.1);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.agent-config-code .terminal-header {
  padding: 0.75rem 1rem;
  background: rgba(255, 255, 255, 0.02);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.agent-config-code .terminal-code {
  padding: 1.25rem;
  font-size: var(--text-xs);
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.65);
  background: transparent;
}

.agent-config .btn {
  display: inline-flex;
  align-items: center;
  align-self: center;
  flex-shrink: 0;
}

/* Button: primary outline */
.btn-primary-outline {
  background: transparent;
  color: var(--color-blue);
  border: 1.5px solid var(--color-blue);
  border-radius: var(--radius-md);
  padding: 0.75rem 1.5rem;
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: -0.01em;
  transition: all var(--duration-fast) var(--ease-out);
  white-space: nowrap;
}

.btn-primary-outline:hover {
  background: var(--color-blue);
  color: var(--color-white);
}

/* ============================================================
   Configure Section — Downloads
   ============================================================ */
.configure-card-downloads {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 2rem;
  background: rgba(67, 97, 238, 0.08);
  border: 1px solid rgba(67, 97, 238, 0.15);
  border-radius: var(--radius-lg);
}

.downloads-title {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 0.5rem;
}

.downloads-desc {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.downloads-buttons {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.btn-download {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  transition: all var(--duration-fast) var(--ease-out);
}

.btn-download:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(67, 97, 238, 0.3);
}

.btn-download-label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-white);
}

.btn-download-hint {
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.35);
  font-family: var(--font-mono);
}

/* ============================================================
   Responsive additions
   ============================================================ */
@media (max-width: 1024px) {
  .hero-agents {
    max-width: 100%;
  }

  .compare-row {
    grid-template-columns: 100px 1fr 1fr;
  }

  .warehouse-detail {
    grid-template-columns: 1fr;
  }

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

  .agent-role-flow {
    justify-content: flex-start;
  }

  .agent-config {
    flex-direction: column;
  }

  .agents-summary {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .hero-agents {
    grid-template-columns: repeat(3, 1fr);
    gap: 0.625rem;
  }

  .hero-agent-card {
    padding: 1rem 0.5rem;
  }

  .hero-agent-name {
    font-size: 0.8125rem;
  }

  .compare-row {
    grid-template-columns: 1fr;
  }

  .compare-header {
    display: none;
  }

  .compare-label {
    font-weight: 600;
    padding: 0.5rem 1rem;
    font-size: var(--text-xs);
  }

  .compare-cell {
    padding: 0.625rem 1rem;
  }

  .compare-cell::before {
    content: attr(data-label);
    display: block;
    font-size: var(--text-xs);
    color: var(--color-fog);
    margin-bottom: 0.25rem;
  }

  .warehouse-detail {
    grid-template-columns: 1fr;
  }

  .warehouse-block {
    padding: 1.5rem;
  }

  .agents-summary {
    grid-template-columns: 1fr;
  }

  .agent-role {
    grid-template-columns: 1fr;
  }

  .agent-role-flow {
    flex-wrap: wrap;
    gap: 0.375rem;
  }

  .agent-config {
    flex-direction: column;
  }

  .configure-card-downloads {
    padding: 1.5rem;
  }
}

@media (max-width: 480px) {
  .hero-agents {
    grid-template-columns: 1fr;
  }

  .flow-step {
    font-size: 0.8125rem;
  }

  .flow-step-arrow {
    display: none;
  }

  .agent-role-flow {
    flex-direction: column;
    align-items: flex-start;
  }
}