/* AgentRocket — design tokens */
:root {
  --paper: #FAF8F4;
  --white: #FFFFFF;
  --ink: #16130E;
  --ink-soft: #3E3A32;
  --muted: #6B655A;
  --line: #E7E0D2;
  --accent: #C2410C;          /* text-safe on light */
  --accent-bright: #EA580C;   /* display / large graphics only */
  --accent-soft: #FCEFE4;
  --dark: #14110C;
  --dark-soft: #1D1912;
  --dark-text: #F5F1E8;
  --dark-muted: #B9B1A1;
  --accent-on-dark: #FB923C;

  --font-display: 'Space Grotesk', 'Inter', system-ui, -apple-system, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;

  --radius: 14px;
  --container: 72rem;
  --container-narrow: 46rem;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-24: 6rem;
  --space-32: 8rem;

  --text-base: clamp(1rem, 0.4vw + 0.9rem, 1.125rem);
  --text-lg: clamp(1.125rem, 0.7vw + 0.95rem, 1.375rem);
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.65;
  color: var(--ink-soft);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: var(--accent); }
section[id] { scroll-margin-top: 5rem; }

/* Accessibility */
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; top: -100%; left: var(--space-4);
  padding: var(--space-3) var(--space-4);
  background: var(--ink); color: #fff; border-radius: 8px;
  font-weight: 600; z-index: 100; text-decoration: none;
}
.skip-link:focus { top: var(--space-4); }
:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Layout */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-6);
}
.container.narrow { max-width: var(--container-narrow); }
.section { padding-block: var(--space-24); }
.section-white { background: var(--white); border-block: 1px solid var(--line); }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  min-height: 4.5rem;
}
.wordmark {
  display: inline-flex; align-items: center; gap: var(--space-3);
  text-decoration: none; color: var(--ink);
}
.wordmark-mark { width: 2rem; height: 2rem; }
.wordmark-text {
  font-family: var(--font-display);
  font-weight: 700; font-size: 1.25rem; letter-spacing: -0.02em;
}
.site-nav { display: flex; align-items: center; }
.nav-toggle {
  display: none;
  flex-direction: column; justify-content: center; gap: 5px;
  width: 44px; height: 44px; padding: 10px;
  background: none; border: 0; cursor: pointer;
}
.nav-toggle span {
  display: block; height: 2px; width: 100%;
  background: var(--ink); border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.nav-menu {
  display: flex; align-items: center; gap: var(--space-8);
  list-style: none; padding: 0;
}
.nav-menu a:not(.btn) {
  color: var(--ink-soft); text-decoration: none;
  font-weight: 500; font-size: 0.95rem;
}
.nav-menu a:not(.btn):hover { color: var(--ink); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 3rem; padding: var(--space-3) var(--space-8);
  border-radius: 999px;
  font-family: var(--font-body); font-weight: 600; font-size: 1rem;
  text-decoration: none; cursor: pointer;
  transition: transform 0.15s ease, background-color 0.15s ease, box-shadow 0.15s ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--ink); color: #fff;
  box-shadow: 0 8px 24px rgba(22, 19, 14, 0.18);
}
.btn-primary:hover { background: #2A251C; transform: translateY(-2px); }
.btn-ghost {
  background: transparent; color: var(--ink);
  border: 1.5px solid var(--line);
}
.btn-ghost:hover { border-color: var(--ink); transform: translateY(-2px); }
.btn-small { min-height: 2.75rem; padding: var(--space-2) var(--space-6); font-size: 0.95rem; }
.btn-large { min-height: 3.75rem; padding: var(--space-4) var(--space-12); font-size: 1.125rem; }

/* Eyebrow + headings */
.eyebrow {
  display: inline-flex; align-items: center; gap: var(--space-2);
  font-size: 0.8rem; font-weight: 600;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-4);
}
.eyebrow-dark { color: var(--accent-on-dark); }
.pulse-dot {
  width: 0.5rem; height: 0.5rem; border-radius: 50%;
  background: var(--accent-bright);
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.45; transform: scale(0.8); }
}
.section-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 1.2vw + 1.7rem, 3rem);
  line-height: 1.12;
  letter-spacing: -0.025em;
  color: var(--ink);
  text-wrap: balance;
  margin-bottom: var(--space-6);
}
.section-sub {
  font-size: var(--text-lg);
  color: var(--muted);
  max-width: 60ch;
  text-wrap: pretty;
}
.section-head { margin-bottom: var(--space-16); max-width: 46rem; }
.prose { max-width: 65ch; }
.prose p + p { margin-top: var(--space-4); }
.prose strong { color: var(--ink); }

/* Hero */
.hero { padding-block: var(--space-32) var(--space-24); overflow: hidden; }
.hero-inner { text-align: center; display: flex; flex-direction: column; align-items: center; }
.hero .eyebrow { margin-bottom: var(--space-6); }
.hero-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.6rem, 2.4vw + 1.9rem, 4.6rem);
  line-height: 1.06;
  letter-spacing: -0.03em;
  color: var(--ink);
  text-wrap: balance;
  max-width: 20ch;
  margin-bottom: var(--space-6);
}
.hero-sub {
  font-size: var(--text-lg);
  color: var(--muted);
  max-width: 58ch;
  text-wrap: pretty;
  margin-bottom: var(--space-8);
}
.hero-ctas { display: flex; gap: var(--space-4); flex-wrap: wrap; justify-content: center; margin-bottom: var(--space-16); }

/* Execution path visual */
.execution-path { width: 100%; max-width: 46rem; margin: 0; }
.execution-path svg { width: 100%; height: auto; }
.path-line { stroke: var(--line); stroke-width: 2; stroke-dasharray: 6 6; }
.node-dot { fill: var(--paper); stroke: var(--muted); stroke-width: 2; }
.node-start { fill: var(--accent-soft); stroke: var(--accent); stroke-width: 2.5; }
.node-done { fill: var(--ink); stroke: var(--ink); }
.node-check { stroke: #fff; stroke-width: 2.5; stroke-linecap: round; stroke-linejoin: round; }
.node-label {
  font-family: var(--font-body); font-size: 13px; font-weight: 600;
  fill: var(--muted); letter-spacing: 0.04em; text-transform: uppercase;
}
.node-label-done { fill: var(--ink); }
.exec-caption {
  margin-top: var(--space-2);
  font-size: 0.875rem; color: var(--muted);
}

/* Cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}
.card {
  position: relative;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: var(--space-8);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(22, 19, 14, 0.08);
}
.card-icon {
  width: 3rem; height: 3rem;
  display: grid; place-items: center;
  border-radius: 12px;
  background: var(--accent-soft); color: var(--accent);
  margin-bottom: var(--space-6);
}
.card-icon svg { width: 1.5rem; height: 1.5rem; }
.card h3 {
  font-family: var(--font-display);
  font-size: 1.375rem; font-weight: 700; letter-spacing: -0.015em;
  color: var(--ink); margin-bottom: var(--space-2);
}
.card p { color: var(--muted); font-size: 1rem; max-width: 44ch; }
.card-badge {
  position: absolute; top: var(--space-6); right: var(--space-6);
  font-size: 0.72rem; font-weight: 600;
  letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid color-mix(in srgb, var(--accent) 25%, transparent);
  padding: var(--space-1) var(--space-3);
  border-radius: 999px;
}

/* Dark principle section */
.section-dark { background: var(--dark); color: var(--dark-text); }
.principle-quote p {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.5rem, 1vw + 1.25rem, 2.25rem);
  line-height: 1.35;
  letter-spacing: -0.01em;
  text-wrap: pretty;
  margin-bottom: var(--space-8);
}
.principle-quote p::before { content: ""; }
.principle-sub {
  color: var(--dark-muted);
  font-size: var(--text-lg);
  border-top: 1px solid var(--dark-soft);
  padding-top: var(--space-8);
  max-width: 56ch;
}
.principle-sub strong, .section-dark strong { color: var(--dark-text); }

/* Business model */
.model-list {
  list-style: none; padding: 0; margin-top: var(--space-8);
  display: flex; flex-wrap: wrap; gap: var(--space-3);
}
.model-list li {
  font-weight: 600; font-size: 0.95rem; color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: var(--space-3) var(--space-6);
}

/* Contact */
.contact-inner { text-align: center; display: flex; flex-direction: column; align-items: center; }
.contact-inner .section-sub { margin-bottom: var(--space-8); }

/* Footer */
.site-footer { background: var(--dark); color: var(--dark-muted); }
.footer-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--space-4); flex-wrap: wrap;
  padding-block: var(--space-8);
  font-size: 0.9rem;
}
.footer-note { margin: 0; }

/* Reveal animation */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.visible { opacity: 1; transform: none; }

/* Responsive */
@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .nav-menu {
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    padding: var(--space-4) var(--space-6) var(--space-6);
    display: none;
  }
  .nav-menu.open { display: flex; }
  .nav-menu li { border-top: 1px solid var(--line); }
  .nav-menu li:first-child { border-top: 0; }
  .nav-menu a:not(.btn) { display: block; padding: var(--space-4) 0; font-size: 1.05rem; }
  .nav-cta-item { border-top: 0; padding-top: var(--space-4); }
  .nav-cta-item .btn { width: 100%; }
  .site-nav { position: static; }
  .site-header .container { position: relative; }
  .card-grid { grid-template-columns: 1fr; }
  .section { padding-block: var(--space-16); }
  .hero { padding-block: var(--space-16) var(--space-12); }
  .hero-ctas .btn { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .pulse-dot { animation: none; }
  .card:hover, .btn-primary:hover, .btn-ghost:hover { transform: none; }
}