* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  min-height: 100vh;
  overflow-x: hidden;
  transition: background 0.3s ease, color 0.3s ease;
}

::selection { background: var(--brand1); color: #fff; }

h1, h2, h3, h4 { font-family: var(--font-display); line-height: 1.2; letter-spacing: -0.02em; }

a { color: inherit; text-decoration: none; }
a.link { color: var(--brand2); font-weight: 600; }
a.link:hover { text-decoration: underline; }

img { max-width: 100%; display: block; }

button { font-family: inherit; cursor: pointer; }
input, select, textarea { font-family: inherit; font-size: 1rem; }

:focus-visible { outline: 2px solid var(--brand2); outline-offset: 2px; }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 8px; }
::-webkit-scrollbar-thumb:hover { background: var(--brand1); }

#bg-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.9;
}

body > header, body > main, body > footer, body > .app-main, #app-shell { position: relative; z-index: 1; }

.wrap { width: min(1160px, 92%); margin: 0 auto; }
.wrap-narrow { width: min(880px, 92%); margin: 0 auto; }

.mono { font-family: var(--font-mono); font-size: 0.92em; }
.muted { color: var(--muted); }
.small { font-size: 0.86rem; }
.center { text-align: center; }
.grad-text { background: var(--brand-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }

.row { display: flex; align-items: center; gap: 0.6rem; flex-wrap: wrap; }
.spread { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.stack { display: flex; flex-direction: column; gap: 1rem; }
.mt1 { margin-top: 0.5rem; } .mt2 { margin-top: 1rem; } .mt3 { margin-top: 1.75rem; } .mt4 { margin-top: 3rem; }
.mb1 { margin-bottom: 0.5rem; } .mb2 { margin-bottom: 1rem; }

section.block { padding: 4.5rem 0; }

.sec-kicker {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--brand2);
  border: 1.5px solid var(--border);
  background: var(--card);
  border-radius: 999px;
  padding: 0.3rem 0.9rem;
  margin-bottom: 1rem;
  box-shadow: var(--hard-sm);
}

.sec-title { font-size: clamp(1.6rem, 3.4vw, 2.4rem); margin-bottom: 0.6rem; }
.sec-sub { color: var(--muted); max-width: 620px; }
.center .sec-sub { margin: 0 auto; }

.reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.2, 0.7, 0.3, 1); transition-delay: var(--d, 0s); }
.reveal.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; }
}