*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 1rem);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--ink-900);
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1,
h2,
h3 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 0.98;
  letter-spacing: -0.02em;
  margin: 0;
}

p {
  margin: 0;
}

a {
  color: inherit;
  text-decoration: none;
}

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

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

button {
  font: inherit;
  color: inherit;
  border: 0;
  background: none;
  cursor: pointer;
}

:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 3px;
  border-radius: 4px;
}

::selection {
  background: var(--lime);
  color: var(--ink-1000);
}

.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.skip-link {
  position: absolute;
  left: var(--gutter);
  top: -100px;
  z-index: 100;
  padding: 0.6rem 1.1rem;
  background: var(--lime);
  color: var(--ink-1000);
  border-radius: var(--radius-pill);
  font-weight: 700;
  transition: top var(--dur-fast) ease;
}

.skip-link:focus {
  top: 1rem;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* ---------- shared atoms ---------- */

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: var(--text-micro);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--lime);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.5rem 1.1rem;
  border-radius: var(--radius-pill);
  background: var(--lime-wash);
  border: 1px solid rgba(204, 245, 38, 0.22);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--lime);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0.95rem 1.9rem;
  border-radius: var(--radius-pill);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.0625rem;
  letter-spacing: -0.01em;
  white-space: nowrap;
  transition:
    transform var(--dur-fast) var(--ease-out-expo),
    box-shadow var(--dur-normal) var(--ease-out-expo),
    background-color var(--dur-fast) ease,
    border-color var(--dur-fast) ease;
}

.btn--primary {
  background: var(--lime);
  color: var(--ink-1000);
  box-shadow: 0 0 0 rgba(204, 245, 38, 0);
}

.btn--primary:hover {
  background: var(--lime-bright);
  transform: translateY(-2px);
  box-shadow: 0 12px 34px -12px var(--lime-glow);
}

.btn--ghost {
  border: 1px solid var(--line-strong);
  color: var(--text);
  background: rgba(255, 255, 255, 0.02);
}

.btn--ghost:hover {
  border-color: var(--lime);
  color: var(--lime);
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0);
}

.btn__icon {
  font-size: 1.05em;
  line-height: 1;
}

/* ---------- section scaffolding ---------- */

.band {
  position: relative;
  padding-block: var(--space-section);
}

.band__head {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  max-width: 46ch;
  margin-bottom: clamp(2.5rem, 1.5rem + 3vw, 4.5rem);
}

.band__title {
  font-size: var(--text-h2);
}

.band__title em {
  font-style: normal;
  color: var(--lime);
}

.band__sub {
  color: var(--text-dim);
  font-size: var(--text-lead);
  max-width: 44ch;
}

/* ---------- reveal ---------- */

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition:
    opacity var(--dur-slow) var(--ease-out-expo),
    transform var(--dur-slow) var(--ease-out-expo);
  transition-delay: var(--reveal-delay, 0ms);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}