:root {
  --ink: #1c1c1a;
  --ink-soft: #55564f;
  --paper: #faf9f6;
  --paper-alt: #f1efe9;
  --line: #ddd9cf;
  --accent: #2f6f5e;
  --accent-soft: #e3ede9;
  --white: #ffffff;
  --radius: 6px;
  --heading-font: "Space Grotesk", sans-serif;
  --mono-font: "IBM Plex Mono", monospace;
  --body-font: "Inter", sans-serif;
}

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

html, body {
  margin: 0;
  padding: 0;
  font-family: var(--body-font);
  color: var(--ink);
  background: var(--paper);
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: var(--heading-font);
  color: var(--ink);
  line-height: 1.15;
  margin: 0 0 20px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

p {
  line-height: 1.7;
  margin: 0 0 18px;
  color: var(--ink-soft);
  font-size: 17px;
}

a { color: var(--accent); text-decoration: none; }

.container { max-width: 1140px; margin: 0 auto; padding: 0 28px; }

/* Reveal-on-scroll */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.in-view { opacity: 1; transform: translateY(0); }

/* Header */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(250, 249, 246, 0.85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow 0.3s ease;
}
.site-header.scrolled { box-shadow: 0 2px 12px rgba(28,28,26,0.06); }

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  padding-bottom: 14px;
}

.brand { display: flex; align-items: center; gap: 10px; }
.brand img { height: 32px; width: auto; display: block; }
.brand span { font-family: var(--heading-font); font-weight: 700; font-size: 14px; letter-spacing: 0.4px; color: var(--ink); }

.site-nav ul { list-style: none; display: flex; gap: 8px; margin: 0; padding: 0; }
.site-nav a {
  color: var(--ink-soft);
  font-weight: 500;
  font-size: 14px;
  font-family: var(--mono-font);
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid transparent;
  background: transparent;
  transition: border-color 0.35s ease, color 0.35s ease, background-color 0.35s ease;
}
.site-nav a:hover { color: var(--ink); }
.site-nav a[aria-current="page"] { color: var(--ink); border-color: var(--line); background-color: var(--paper-alt); }

.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 6px; }
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  content: ""; display: block; width: 22px; height: 2px; background: var(--ink); position: relative; transition: 0.2s;
}
.nav-toggle span::before { position: absolute; top: -7px; width: 22px; }
.nav-toggle span::after { position: absolute; top: 7px; width: 22px; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--ink);
  padding: 12px 26px;
  border-radius: var(--radius);
  font-family: var(--heading-font);
  font-weight: 600;
  font-size: 15px;
  border: 1.5px solid var(--ink);
  transition: background 0.2s ease, color 0.2s ease;
}
.btn:hover { background: var(--ink); color: var(--paper); }

.btn-accent { border-color: var(--accent); color: var(--accent); }
.btn-accent:hover { background: var(--accent); color: #fff; }

.btn-ghost { border-color: rgba(255,255,255,0.5); color: #fff; }
.btn-ghost:hover { background: rgba(255,255,255,0.12); color: #fff; }

/* Hero */
.hero {
  position: relative;
  background:
    linear-gradient(rgba(250,249,246,0.94), rgba(250,249,246,0.98)),
    repeating-linear-gradient(0deg, var(--line) 0, var(--line) 1px, transparent 1px, transparent 48px),
    repeating-linear-gradient(90deg, var(--line) 0, var(--line) 1px, transparent 1px, transparent 48px);
  padding: 170px 0 110px;
  overflow: hidden;
}

.hero .container {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 40px;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono-font);
  font-size: 13px;
  color: var(--accent);
  border: 1px solid var(--line);
  background: var(--white);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 22px;
}
.hero-eyebrow::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); display: inline-block; }

.hero h1 { font-size: 54px; margin-bottom: 18px; }
.hero p.lead { font-size: 19px; max-width: 460px; }
.hero-actions { display: flex; gap: 14px; margin-top: 28px; flex-wrap: wrap; }

.hero-art { position: relative; }
.hero-art svg { width: 100%; height: auto; animation: float 7s ease-in-out infinite; }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }

/* Page-level dark band (used for CTA + inline callouts) */
.dark-band {
  background: var(--ink);
  color: var(--paper);
  border-radius: 4px;
}
.dark-band h2, .dark-band h3 { color: var(--paper); }
.dark-band p { color: rgba(250,249,246,0.72); }

/* Sections */
section { padding: 100px 0; position: relative; }
section.alt { background: var(--paper-alt); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

.section-label {
  display: flex;
  align-items: center;
  gap: 14px;
  font-family: var(--mono-font);
  font-size: 13px;
  color: var(--accent);
  margin-bottom: 18px;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.section-label .num { color: var(--ink-soft); }
.section-label::after { content: ""; flex: 1; height: 1px; background: var(--line); }

.section-head { max-width: 640px; margin: 0 0 48px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }

.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }

.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }

.card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: border-color 0.2s ease, transform 0.2s ease;
  position: relative;
}
.card:hover { border-color: var(--accent); transform: translateY(-3px); }
.card .tag { font-family: var(--mono-font); font-size: 12px; color: var(--ink-soft); display: block; margin-bottom: 10px; }
.card h3 { font-size: 18px; margin-bottom: 8px; }
.card p { font-size: 15px; margin-bottom: 0; }

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

.cta-band {
  padding: 60px 48px;
  text-align: center;
  position: relative;
}
.cta-band p { max-width: 480px; margin: 0 auto 28px; }

/* Footer */
.site-footer {
  background: var(--ink);
  color: rgba(250,249,246,0.55);
  padding: 32px 0;
  text-align: center;
  font-size: 13px;
  font-family: var(--mono-font);
}

@media (max-width: 900px) {
  .hero .container { grid-template-columns: 1fr; text-align: center; }
  .hero p.lead { margin-left: auto; margin-right: auto; }
  .hero-actions { justify-content: center; }
  .hero-art { max-width: 320px; margin: 0 auto; }
  .two-col { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr 1fr; }
  .grid-3 { grid-template-columns: 1fr; }

  .site-nav {
    position: fixed; top: 61px; left: 0; right: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    padding: 12px 0;
    transform: translateY(-150%);
    transition: transform 0.25s ease;
  }
  .site-nav.open { transform: translateY(0); }
  .site-nav ul { flex-direction: column; gap: 0; align-items: center; }
  .site-nav ul li { width: 100%; text-align: center; padding: 6px 0; }
  .site-nav a { display: inline-block; }
  .nav-toggle { display: block; }
}

@media (max-width: 560px) {
  .hero { padding: 140px 0 80px; }
  .hero h1 { font-size: 36px; }
  .grid-4 { grid-template-columns: 1fr; }
  .cta-band { padding: 44px 22px; }
}