:root {
  color-scheme: light;
  --plum: #2f173b;
  --plum-soft: #5b3a68;
  --coral: #f16f61;
  --apricot: #ffb66e;
  --lavender: #a995ca;
  --canvas: #fbf7f4;
  --paper: rgba(255, 255, 255, 0.86);
  --ink: #281f2d;
  --muted: #706776;
  --line: rgba(47, 23, 59, 0.12);
  font-family: Inter, ui-rounded, "SF Pro Rounded", "SF Pro Display", -apple-system,
    BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background:
    radial-gradient(circle at 84% 4%, rgba(241, 111, 97, 0.18), transparent 28rem),
    radial-gradient(circle at 8% 30%, rgba(169, 149, 202, 0.17), transparent 26rem),
    var(--canvas);
  color: var(--ink);
  line-height: 1.58;
}

a { color: var(--plum-soft); }

.shell {
  width: min(1100px, calc(100% - 36px));
  margin: 0 auto;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--plum);
  font-weight: 800;
  text-decoration: none;
  letter-spacing: -0.02em;
}

.mark {
  position: relative;
  width: 35px;
  height: 35px;
  border-radius: 11px;
  background: linear-gradient(145deg, var(--plum), #4d275c);
  box-shadow: 0 8px 20px rgba(47, 23, 59, 0.2);
}

.mark::before,
.mark::after {
  position: absolute;
  content: "";
  width: 17px;
  height: 8px;
  top: 13px;
  border: 3px solid;
  border-radius: 999px;
}

.mark::before {
  left: 3px;
  border-color: var(--coral);
  transform: rotate(-16deg);
}

.mark::after {
  right: 3px;
  border-color: var(--apricot);
  transform: rotate(16deg);
}

nav { display: flex; gap: 20px; }
nav a { color: var(--muted); font-size: 0.9rem; text-decoration: none; }
nav a:hover { color: var(--plum); }

main { padding: 50px 0 90px; }

.hero {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 56px;
  min-height: 65vh;
}

.eyebrow {
  color: var(--coral);
  font-size: 0.76rem;
  font-weight: 850;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1, h2, h3 {
  color: var(--plum);
  line-height: 1.09;
  letter-spacing: -0.035em;
}

h1 { margin: 14px 0 20px; font-size: clamp(3rem, 8vw, 6.4rem); }
h2 { margin-top: 0; font-size: clamp(2rem, 5vw, 3.25rem); }
h3 { margin-bottom: 6px; font-size: 1.2rem; }

.lede {
  max-width: 640px;
  color: var(--muted);
  font-size: clamp(1.08rem, 2vw, 1.3rem);
}

.pulse-card,
.document {
  border: 1px solid var(--line);
  border-radius: 28px;
  background: var(--paper);
  box-shadow: 0 24px 70px rgba(47, 23, 59, 0.09);
  backdrop-filter: blur(18px);
}

.pulse-card { padding: 20px; transform: rotate(1.5deg); }

.signal {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 10px 0;
  padding: 16px;
  border-radius: 18px;
  background: white;
  box-shadow: 0 6px 20px rgba(47, 23, 59, 0.06);
}

.signal-icon {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 14px;
  color: white;
  font-weight: 850;
}

.coral { background: var(--coral); }
.apricot { background: var(--apricot); color: var(--plum); }
.lavender { background: var(--lavender); }
.plum { background: var(--plum); }
.signal strong { display: block; color: var(--plum); }
.signal span { color: var(--muted); font-size: 0.88rem; }

.principles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 70px;
}

.principle {
  padding: 25px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.64);
}

.document {
  max-width: 820px;
  margin: 10px auto 0;
  padding: clamp(25px, 6vw, 64px);
}

.document h1 { font-size: clamp(2.4rem, 7vw, 4.5rem); }
.document h2 { margin-top: 38px; font-size: 1.5rem; }
.document p, .document li { color: #514856; }
.effective { margin-top: -10px; color: var(--muted); font-size: 0.9rem; }

.callout {
  margin: 26px 0;
  padding: 20px;
  border-left: 4px solid var(--coral);
  border-radius: 0 16px 16px 0;
  background: rgba(241, 111, 97, 0.09);
}

.button {
  display: inline-flex;
  padding: 13px 18px;
  border-radius: 14px;
  background: var(--plum);
  color: white;
  font-weight: 750;
  text-decoration: none;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 28px 0 44px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.85rem;
}

.footer-links { display: flex; flex-wrap: wrap; gap: 16px; }

@media (max-width: 760px) {
  nav { display: none; }
  .hero { grid-template-columns: 1fr; gap: 36px; padding-top: 10px; }
  .pulse-card { transform: none; }
  .principles { grid-template-columns: 1fr; }
  footer { flex-direction: column; }
}

@media (prefers-reduced-motion: no-preference) {
  .mark { animation: breathe 4s ease-in-out infinite; }
  @keyframes breathe {
    50% { box-shadow: 0 10px 30px rgba(241, 111, 97, 0.28); transform: translateY(-1px); }
  }
}