/* PoolUp landing. Aesthetic: "Warm Editorial Social" (docs/design-language.md
   v1.0). Consumes ONLY the custom properties in tokens.css (mirrored from
   docs/design-tokens.css). No raw hex/px/durations that bypass a token.
   No em dashes or en dashes anywhere. */

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

a {
  color: inherit;
}

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

.wrap {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: var(--weight-regular);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-4);
}

.eyebrow.muted {
  color: var(--color-neutral-400);
}

h1,
h2,
h3 {
  font-family: var(--font-display);
  letter-spacing: var(--tracking-tight);
  line-height: var(--leading-tight);
  font-weight: var(--weight-black);
}

p {
  max-width: var(--content-measure);
}

.accent {
  color: var(--color-accent);
}

/* Amber energy pop: tiny surface area only (underline / live dot / one stat) */
.energy-underline {
  background-image: linear-gradient(var(--color-energy), var(--color-energy));
  background-repeat: no-repeat;
  background-position: 0 92%;
  background-size: 100% 0.16em;
}

/* ---- Header ---- */
.site-header {
  position: absolute;
  inset: 0 0 auto 0;
  z-index: var(--z-sticky);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) var(--space-6);
}

.brand {
  font-family: var(--font-display);
  font-weight: var(--weight-bold);
  font-size: var(--text-xl);
  letter-spacing: var(--tracking-tight);
  text-decoration: none;
  color: var(--color-ink);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: var(--space-5);
}

.nav-link {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--color-ink-soft);
  text-decoration: none;
}

.nav-link:hover,
.nav-link:focus-visible {
  color: var(--color-accent);
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-weight: var(--weight-semibold);
  font-size: var(--text-base);
  text-decoration: none;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-pill);
  border: none;
  cursor: pointer;
  transition: transform var(--dur-fast) var(--ease-out),
    box-shadow var(--dur-base) var(--ease-out),
    background-color var(--dur-fast) var(--ease-out);
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-accent-ink);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: var(--color-accent-hover);
  box-shadow: var(--shadow-accent);
  transform: translateY(-2px);
}

.btn-secondary {
  background: transparent;
  color: var(--color-ink);
  outline: var(--outline-card);
  outline-offset: -2px;
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
  background: var(--color-ink);
  color: var(--color-paper);
}

.btn:focus-visible {
  outline: var(--outline-focus);
  outline-offset: 3px;
}

.channels {
  margin-top: var(--space-5);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-5);
  align-items: center;
}

.channel-link {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--color-ink-soft);
  text-decoration: none;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 2px;
}

.channel-link:hover,
.channel-link:focus-visible {
  color: var(--color-accent);
  border-color: var(--color-accent);
}

/* ---- Sections ---- */
.section {
  padding-block: var(--space-9);
}

.section.warm {
  background: var(--color-paper-warm);
}

.section-head {
  max-width: 30ch;
  margin-bottom: var(--space-8);
}

.section-head h2 {
  font-size: var(--text-3xl);
}

/* ---- Hero ---- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding-block: var(--space-10) var(--space-9);
}

.hero h1 {
  font-size: clamp(var(--text-3xl), 9vw, var(--text-5xl));
  max-width: 16ch;
  margin-bottom: var(--space-6);
}

.hero .lede {
  font-size: var(--text-lg);
  color: var(--color-ink-soft);
  max-width: 52ch;
  margin-bottom: var(--space-7);
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-5);
}

/* ---- Experiments (modular cards) ---- */
.experiments {
  display: grid;
  gap: var(--grid-gutter);
  grid-template-columns: 1fr;
}

@media (min-width: 880px) {
  .experiments {
    grid-template-columns: repeat(3, 1fr);
  }
}

.xp {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.xp.feature {
  border: none;
  outline: var(--outline-card);
  outline-offset: -2px;
  border-left: 4px solid var(--color-accent);
}

.xp .idx {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--color-neutral-400);
}

.xp h3 {
  font-size: var(--text-xl);
  line-height: var(--leading-snug);
}

.xp p {
  font-size: var(--text-base);
  color: var(--color-ink-soft);
}

.xp .enter {
  margin-top: auto;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--color-accent);
}

/* ---- Dark thesis band ---- */
.thesis {
  background: var(--color-dark-bg);
  color: var(--color-dark-text);
  padding-block: var(--space-10);
}

.thesis .eyebrow {
  color: var(--color-energy);
}

.thesis h2 {
  font-size: clamp(var(--text-2xl), 5vw, var(--text-4xl));
  max-width: 20ch;
  margin-bottom: var(--space-6);
}

.thesis p {
  color: var(--color-dark-text-soft);
  font-size: var(--text-lg);
  max-width: 60ch;
}

/* ---- Presence band ---- */
.presence h2 {
  font-size: var(--text-3xl);
  max-width: 18ch;
  margin-bottom: var(--space-5);
}

.presence p {
  font-size: var(--text-lg);
  color: var(--color-ink-soft);
}

.live-dot {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--color-ink-soft);
  margin-bottom: var(--space-5);
}

.live-dot::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: var(--radius-pill);
  background: var(--color-energy);
  animation: pulse 2.4s var(--ease-in-out) infinite;
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.35;
  }
}

/* ---- Enter / final ---- */
.enter-cta {
  text-align: left;
}

.enter-cta h2 {
  font-size: clamp(var(--text-2xl), 6vw, var(--text-4xl));
  max-width: 16ch;
  margin-bottom: var(--space-5);
}

.enter-cta p {
  color: var(--color-ink-soft);
  font-size: var(--text-lg);
  margin-bottom: var(--space-7);
}

/* ---- Footer (dark punctuation) ---- */
.site-footer {
  background: var(--color-dark-bg);
  color: var(--color-dark-text);
  padding-block: var(--space-8);
}

.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-5);
  align-items: center;
  justify-content: space-between;
}

.site-footer .brand {
  color: var(--color-dark-text);
}

.site-footer .meta {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--color-dark-text-soft);
}

.site-footer a.meta:hover,
.site-footer a.meta:focus-visible {
  color: var(--color-energy);
}

/* ---- Motion ---- */
.js .reveal {
  opacity: 0;
  transform: translateY(var(--reveal-distance));
  transition: opacity var(--dur-slow) var(--ease-emphasis),
    transform var(--dur-slow) var(--ease-emphasis);
}

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

.js .stagger > * {
  opacity: 0;
  transform: translateY(var(--reveal-distance));
  transition: opacity var(--dur-slow) var(--ease-emphasis),
    transform var(--dur-slow) var(--ease-emphasis);
}

.js .stagger.is-in > * {
  opacity: 1;
  transform: none;
}

.js .stagger.is-in > *:nth-child(2) {
  transition-delay: var(--stagger-step);
}

.js .stagger.is-in > *:nth-child(3) {
  transition-delay: calc(var(--stagger-step) * 2);
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .js .reveal,
  .js .stagger > * {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .live-dot::before {
    animation: none;
  }
  .btn {
    transition: none;
  }
}