:root {
  --bg: #f6f7f4;
  --bg-band: #eceee8;
  --card: #ffffff;
  --ink: #15201b;
  --ink-soft: #55605b;
  --line: #d9ddd5;
  --accent: #0f7a5c;
  --accent-ink: #ffffff;
  --accent-soft: #dcefe7;
  --amber: #9a6400;
  --amber-soft: #f6ead0;
  --radius: 16px;
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --display: 'Space Grotesk', var(--sans);
  --mono: 'JetBrains Mono', ui-monospace, Menlo, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1513;
    --bg-band: #141c19;
    --card: #18221e;
    --ink: #e6ece8;
    --ink-soft: #9aa7a1;
    --line: #2a3631;
    --accent: #3ccf9e;
    --accent-ink: #06120d;
    --accent-soft: #163a2e;
    --amber: #f0b54a;
    --amber-soft: #3a2c10;
  }
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }
.mono { font-family: var(--mono); }

/* Nav */
.nav {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.brand { font-family: var(--display); font-weight: 700; font-size: 1.1rem; text-decoration: none; display: flex; align-items: center; gap: 8px; }
.dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); }
.nav nav { display: flex; align-items: center; gap: 22px; }
.nav nav a { text-decoration: none; color: var(--ink-soft); font-size: .95rem; }
.nav nav a:hover { color: var(--ink); }
.nav nav a.btn { color: var(--accent-ink); }

/* Buttons */
.btn {
  display: inline-block; padding: 12px 20px; border-radius: 999px;
  background: var(--accent); color: var(--accent-ink);
  text-decoration: none; font-weight: 600; border: 1.5px solid var(--accent);
  transition: transform .12s ease, opacity .12s ease;
}
.btn:hover { transform: translateY(-1px); opacity: .92; }
.btn.ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn.small { padding: 7px 14px; font-size: .9rem; }
.btn:focus-visible, a:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }

/* Hero */
.hero { padding: 88px 20px 64px; }
.eyebrow { font-size: .78rem; letter-spacing: .08em; text-transform: uppercase; color: var(--accent); margin-bottom: 14px; }
h1, h2, h3 { font-family: var(--display); line-height: 1.15; letter-spacing: -.01em; }
h1 { font-size: clamp(2.2rem, 5.5vw, 3.8rem); max-width: 16ch; margin-bottom: 20px; }
.lead { font-size: 1.15rem; color: var(--ink-soft); max-width: 58ch; margin-bottom: 30px; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; }
.stats { list-style: none; display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 56px; }
.stats li { border-top: 2px solid var(--accent); padding-top: 14px; }
.stats b { display: block; font-family: var(--display); font-size: 2rem; }
.stats span { color: var(--ink-soft); font-size: .92rem; }

/* Sections */
.section { padding: 80px 20px; }
.band { background: var(--bg-band); padding: 80px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
h2 { font-size: clamp(1.7rem, 3.5vw, 2.4rem); margin-bottom: 10px; }
.section-lead { color: var(--ink-soft); max-width: 60ch; margin-bottom: 36px; }
.group-label { font-size: .78rem; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-soft); margin: 36px 0 14px; font-weight: 500; }

/* Grids & cards */
.grid { display: grid; gap: 18px; }
.grid.two { grid-template-columns: repeat(2, 1fr); }
.grid.three { grid-template-columns: repeat(3, 1fr); }
.grid.four { grid-template-columns: repeat(4, 1fr); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; position: relative; }
.card h3 { font-size: 1.2rem; margin-bottom: 8px; }
.card p { color: var(--ink-soft); }
.icon { width: 42px; height: 42px; border-radius: 12px; background: var(--accent-soft); display: grid; place-items: center; margin-bottom: 16px; }
.icon svg { width: 22px; height: 22px; fill: none; stroke: var(--accent); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }

.project .sub, .feature .sub { font-family: var(--mono); font-size: .82rem; color: var(--accent); margin-bottom: 12px; }
.badge { position: absolute; top: 20px; right: 20px; font-family: var(--mono); font-size: .7rem; padding: 4px 9px; border-radius: 999px; background: var(--amber-soft); color: var(--amber); }
.project h3 { padding-right: 150px; }
.tags { list-style: none; display: flex; flex-wrap: wrap; gap: 6px; margin-top: 16px; }
.tags li { font-family: var(--mono); font-size: .74rem; padding: 3px 9px; border: 1px solid var(--line); border-radius: 999px; color: var(--ink-soft); }
.link { display: inline-block; margin-top: 16px; font-weight: 600; color: var(--accent); text-decoration: none; }
.link:hover { text-decoration: underline; }

/* Feature card */
.feature { display: grid; grid-template-columns: 1.4fr 1fr; gap: 32px; padding: 32px; margin-bottom: 18px; }
.feature h3 { font-size: 1.7rem; }
.feature p + p { margin-top: 10px; }
.checks { list-style: none; margin-top: 18px; display: grid; gap: 10px; }
.checks li { padding-left: 26px; position: relative; color: var(--ink-soft); }
.checks li::before { content: ""; position: absolute; left: 0; top: .45em; width: 14px; height: 8px; border-left: 2px solid var(--accent); border-bottom: 2px solid var(--accent); transform: rotate(-45deg); }
.checks b { color: var(--ink); }
.flow { display: flex; flex-direction: column; justify-content: center; }
.step { background: var(--bg); border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px; display: grid; grid-template-columns: auto 1fr; column-gap: 12px; }
.step span { grid-row: span 2; color: var(--accent); font-size: .8rem; padding-top: 3px; }
.step small { color: var(--ink-soft); font-size: .85rem; }
.arrow { width: 2px; height: 16px; background: var(--accent); margin: 2px auto; opacity: .6; }

/* How I work */
.how .num { display: inline-grid; place-items: center; width: 32px; height: 32px; border-radius: 50%; border: 1.5px solid var(--accent); color: var(--accent); margin-bottom: 14px; }
.how h3 { font-size: 1.15rem; margin-bottom: 6px; }
.how p { color: var(--ink-soft); }

/* About / contact / footer */
.about p { max-width: 62ch; font-size: 1.08rem; color: var(--ink-soft); }
.about p + p { margin-top: 14px; }
.contact { text-align: center; }
.contact .section-lead { margin-left: auto; margin-right: auto; }
.contact .cta-row { justify-content: center; }
.footer { padding: 28px 20px; color: var(--ink-soft); font-size: .9rem; }

/* Responsive */
@media (max-width: 900px) {
  .grid.four { grid-template-columns: repeat(2, 1fr); }
  .grid.three { grid-template-columns: 1fr; }
  .feature { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .hero { padding: 56px 16px 44px; }
  .wrap { padding-left: 16px; padding-right: 16px; }
  .grid.two, .grid.four { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr; gap: 12px; margin-top: 40px; }
  .nav nav a:not(.btn) { display: none; }
  .feature { padding: 22px; }
  .badge { position: static; display: inline-block; margin-bottom: 12px; }
  .project h3 { padding-right: 0; }
  .section, .band { padding-top: 56px; padding-bottom: 56px; }
}

/* Toolkit card */
.toolkit { padding: 28px; }
.toolkit-head { display: flex; gap: 24px; align-items: flex-start; justify-content: space-between; }
.toolkit-head h3 { font-size: 1.4rem; margin-bottom: 8px; }
.toolkit-head p { color: var(--ink-soft); max-width: 60ch; }
.toolkit-head .btn { white-space: nowrap; }
.toolkit-steps { list-style: none; display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-top: 22px; }
.toolkit-steps a { display: grid; grid-template-columns: auto 1fr; column-gap: 10px; padding: 14px; border: 1px solid var(--line); border-radius: 12px; background: var(--bg); text-decoration: none; height: 100%; transition: border-color .12s ease, transform .12s ease; }
.toolkit-steps a:hover { border-color: var(--accent); transform: translateY(-1px); }
.toolkit-steps span { grid-row: span 2; color: var(--accent); font-size: .8rem; padding-top: 3px; }
.toolkit-steps small { color: var(--ink-soft); font-size: .85rem; }
@media (max-width: 900px) { .toolkit-steps { grid-template-columns: repeat(2, 1fr); } .toolkit-head { flex-direction: column; } }
@media (max-width: 640px) { .toolkit { padding: 22px; } .toolkit-steps { grid-template-columns: 1fr; } }