/* Shadu Labs — shadulabs.com */

:root {
  --ink: #16181D;
  --ink-soft: #5C6470;
  --paper: #FAFAFA;
  --card: #FFFFFF;
  --line: #E7E8EA;
  --line-dark: #262A31;
  --accent: #2563EB;
  --accent-hover: #1D4ED8;
  --accent-light: #6E93F0;
  --muted-dark: #6E7683;
  --text-dark-soft: #A6ACB5;
  --sans: 'IBM Plex Sans', 'Helvetica Neue', Arial, sans-serif;
  --mono: 'IBM Plex Mono', 'Courier New', monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--sans);
  background: var(--paper);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
}

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

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

.kicker {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--accent);
  text-transform: uppercase;
}

/* Nav */
.nav {
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}
.nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 24px;
  padding-bottom: 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
}
.brand:hover { color: var(--ink); }
.brand-name {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}
.nav-links a {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--ink-soft);
}
.nav-links a:hover { color: var(--ink); }
.nav-links a.nav-contact { color: var(--ink); }

/* Hero */
.hero {
  position: relative;
  overflow: hidden;
}
.hero-mark {
  position: absolute;
  right: 60px;
  top: 60px;
  opacity: 0.08;
  pointer-events: none;
}
.hero .container {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 28px;
  padding-top: 140px;
  padding-bottom: 150px;
  position: relative;
}
.hero h1 {
  margin: 0;
  font-size: 72px;
  line-height: 1.06;
  font-weight: 600;
  letter-spacing: -0.03em;
  max-width: 820px;
}
.hero .lede {
  margin: 0;
  font-size: 20px;
  line-height: 1.6;
  color: var(--ink-soft);
  max-width: 620px;
}
.hero-actions {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-top: 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 52px;
  padding: 0 32px;
  background: var(--accent);
  color: #FFFFFF;
  font-size: 16px;
  font-weight: 500;
  border-radius: 4px;
}
.btn:hover { background: var(--accent-hover); color: #FFFFFF; }

.link-quiet {
  font-size: 16px;
  color: var(--ink-soft);
  border-bottom: 1px solid #C9CCD1;
  padding-bottom: 2px;
}
.link-quiet:hover { color: var(--ink); border-color: var(--ink); }

/* Sections */
.section {
  border-top: 1px solid var(--line);
}
.section .container {
  padding-top: 110px;
  padding-bottom: 120px;
}
.section-head {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.section h2 {
  margin: 0;
  font-size: 40px;
  font-weight: 600;
  letter-spacing: -0.02em;
}

/* What we do */
.what { background: var(--card); }
.what .container {
  display: flex;
  flex-direction: column;
  gap: 64px;
}
.capabilities {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 48px;
}
.capability {
  display: flex;
  flex-direction: column;
  gap: 16px;
  border-top: 2px solid var(--ink);
  padding-top: 28px;
}
.capability h3 {
  margin: 0;
  font-size: 20px;
  font-weight: 600;
}
.capability p {
  margin: 0;
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink-soft);
}

/* How we work */
.how { background: var(--paper); }
.how .container {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 80px;
}
.how-intro {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.how-intro h2 { max-width: 420px; }
.how-intro p {
  margin: 0;
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink-soft);
  max-width: 440px;
}
.principles { display: flex; flex-direction: column; }
.principle {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 24px 0;
  border-top: 1px solid var(--line);
}
.principle:last-child { border-bottom: 1px solid var(--line); }
.principle h3 { margin: 0; font-size: 18px; font-weight: 600; }
.principle p {
  margin: 0;
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink-soft);
}

/* Contact */
.contact { background: var(--ink); }
.contact .container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  text-align: center;
}
.contact .kicker { color: var(--accent-light); }
.contact h2 {
  font-size: 48px;
  color: var(--paper);
}
.contact p {
  margin: 0;
  font-size: 18px;
  line-height: 1.6;
  color: var(--text-dark-soft);
  max-width: 520px;
}
.contact-actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  margin-top: 8px;
}
.contact-email {
  font-family: var(--mono);
  font-size: 14px;
  color: var(--muted-dark);
}
.contact-email:hover { color: var(--text-dark-soft); }

/* Footer */
.footer {
  background: var(--ink);
  border-top: 1px solid var(--line-dark);
}
.footer .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 28px;
  padding-bottom: 28px;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--muted-dark);
}
.footer-links { display: flex; gap: 24px; }
.footer-links a { font-size: 13px; color: var(--muted-dark); }
.footer-links a:hover { color: var(--text-dark-soft); }

/* Legal pages */
.legal-page { background: var(--card); }
.legal .container {
  max-width: 760px;
  padding-top: 80px;
  padding-bottom: 100px;
}
.legal h1 {
  font-size: 40px;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0 0 8px 0;
}
.legal h2 {
  font-size: 40px;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0 0 8px 0;
}
.legal h3 {
  font-size: 22px;
  font-weight: 600;
  margin: 40px 0 12px 0;
}
.legal h4 {
  font-size: 17px;
  font-weight: 600;
  margin: 24px 0 8px 0;
}
.legal p, .legal li {
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink-soft);
}
.legal strong { color: var(--ink); }
.legal ul { padding-left: 24px; }

/* Responsive */
@media (max-width: 900px) {
  .hero h1 { font-size: 52px; }
  .capabilities { grid-template-columns: minmax(0, 1fr); gap: 36px; }
  .how .container { grid-template-columns: minmax(0, 1fr); gap: 40px; }
  .hero-mark { right: -40px; top: 30px; width: 180px; height: 238px; opacity: 0.07; }
}

@media (max-width: 720px) {
  .hero .container { padding-top: 72px; padding-bottom: 80px; gap: 22px; }
  .hero h1 { font-size: 40px; line-height: 1.1; letter-spacing: -0.02em; }
  .hero .lede { font-size: 17px; }
  .section .container { padding-top: 72px; padding-bottom: 80px; }
  .section h2 { font-size: 30px; }
  .contact h2 { font-size: 32px; }
  .what .container { gap: 40px; }
  .kicker { font-size: 12px; }
  .nav .container { padding-top: 18px; padding-bottom: 18px; }
  .nav-links { gap: 20px; }
  .footer .container { flex-direction: column; gap: 12px; align-items: flex-start; }
}

@media (max-width: 480px) {
  .nav-links a:not(.nav-contact) { display: none; }
  .hero-actions { flex-direction: column; align-items: flex-start; gap: 18px; }
}