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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background: var(--surface);
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

.top {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.1rem 1.5rem;
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid transparent;
}

.mark {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: -0.01em;
}

.nav {
  display: flex;
  gap: 1.25rem;
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--mute);
}

.nav a:hover {
  color: var(--ink);
}

main {
  position: relative;
  z-index: 1;
}

.hero {
  width: min(720px, calc(100% - 2.5rem));
  margin: 0 auto;
  padding: 4.5rem 0 2.75rem;
  text-align: left;
}

.meta {
  margin: 0 0 1.25rem;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--mute);
}

.brand {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(2.4rem, 6vw, 3.4rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.lede {
  margin: 1rem 0 0;
  max-width: 34rem;
  color: var(--ink-2);
  font-family: var(--font-serif);
  font-size: 1.05rem;
  line-height: 1.45;
  font-weight: 400;
}

.paper {
  position: relative;
  width: min(860px, calc(100% - 2rem));
  margin: 0 auto 5rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--line);
  opacity: 0;
  transform: translateY(16px);
  transition:
    opacity 700ms var(--ease),
    transform 700ms var(--ease);
}

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

.paper-rail {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin: 1.25rem 0 1rem;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mute);
}

.paper-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.sep {
  width: 1rem;
  height: 1px;
  background: var(--line-strong);
}

.paper-dl {
  color: var(--ink);
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 0.05rem;
}

.paper-dl:hover {
  border-bottom-color: var(--ink);
}

.page-status {
  margin: 0 0 1rem;
  text-align: center;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mute);
}

.page-status[hidden] {
  display: none;
}

.pages {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
}

.page {
  margin: 0;
  width: 100%;
  background: var(--paper);
  border: 1px solid var(--line-strong);
  box-shadow: 0 18px 40px -32px rgba(0, 0, 0, 0.28);
  overflow: hidden;
}

.page canvas {
  display: block;
  width: 100%;
  height: auto;
  vertical-align: top;
}

.viewer-fallback {
  margin: 0;
  padding: 3rem 1.5rem;
  text-align: center;
  color: var(--mute);
  border: 1px solid var(--line-strong);
  background: var(--paper);
  width: 100%;
}

.viewer-fallback a {
  color: var(--ink);
  border-bottom: 1px solid var(--ink);
}

.foot {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
  width: min(860px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 1.5rem 0 2.5rem;
  border-top: 1px solid var(--line);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--mute);
}

.foot-brand {
  color: var(--ink);
  font-family: var(--font-serif);
  font-weight: 600;
  letter-spacing: 0;
  text-transform: none;
  font-size: 0.9rem;
}

@media (max-width: 720px) {
  .top {
    padding: 1rem;
  }

  .hero {
    width: calc(100% - 2rem);
    padding: 3rem 0 2rem;
  }

  .brand {
    font-size: clamp(2rem, 9vw, 2.6rem);
  }

  .paper {
    width: calc(100% - 1.5rem);
    margin-bottom: 3rem;
  }

  .pages {
    gap: 0.85rem;
  }

  .foot {
    width: calc(100% - 1.5rem);
    padding: 1.25rem 0 2rem;
  }
}

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

  .paper {
    animation: none !important;
    transition: none !important;
    opacity: 1;
    transform: none;
  }
}

/* --- Access / waitlist --- */
.access {
  width: min(860px, calc(100% - 2rem));
  margin: 0 auto 5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
}

.access .meta {
  margin: 0 0 1rem;
}

.access-title {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1.5rem;
  letter-spacing: -0.01em;
  margin: 0 0 0.5rem;
}

.access-lede {
  font-family: var(--font-serif);
  font-size: 1rem;
  line-height: 1.45;
  color: var(--ink-2);
  max-width: var(--measure-prose);
  margin: 0 0 1.5rem;
}

.access-form {
  display: flex;
  gap: 0.5rem;
  max-width: 26rem;
}

.access-form input {
  flex: 1;
  background: var(--paper);
  border: 1px solid var(--line-strong);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  padding: 0.55rem 0.7rem;
  border-radius: var(--radius-ui);
}

.access-form input:focus-visible {
  outline: 1px solid var(--ink);
  outline-offset: 2px;
}

.access-form button {
  background: var(--ink);
  color: var(--paper);
  border: 1px solid var(--ink);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 0.55rem 1rem;
  border-radius: var(--radius-ui);
  cursor: pointer;
}

.access-status {
  margin: 0.7rem 0 0;
  font-size: 0.8rem;
  color: var(--mute);
  min-height: 1.2em;
}

@media (max-width: 720px) {
  .access {
    width: calc(100% - 1.5rem);
    margin-bottom: 3rem;
  }

  .access-form {
    flex-direction: column;
    max-width: none;
  }
}

.foot-notes {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  text-align: right;
}

@media (max-width: 720px) {
  .foot-notes {
    text-align: left;
  }
}

/* --- FAQ --- */
.faq {
  width: min(860px, calc(100% - 2rem));
  margin: 0 auto 5rem;
}

.faq-group {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1.5rem;
  letter-spacing: -0.01em;
  margin: 3.5rem 0 0.25rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
}

.faq-group:first-child {
  margin-top: 0;
}

.faq-q {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.82rem;
  letter-spacing: 0.02em;
  color: var(--ink);
  margin: 2rem 0 0.4rem;
}

.faq-a {
  font-family: var(--font-serif);
  font-size: 1rem;
  line-height: 1.5;
  color: var(--ink-2);
  max-width: 38rem;
  margin: 0;
}

.faq-a a {
  color: var(--ink);
  border-bottom: 1px solid var(--line-strong);
}

@media (max-width: 720px) {
  .faq {
    width: calc(100% - 1.5rem);
    margin-bottom: 3rem;
  }
}

/* --- allocation table --- */
.alloc {
  width: 100%;
  border-collapse: collapse;
  margin: 1.25rem 0 0.5rem;
  font-size: 0.8rem;
}

.alloc th {
  text-align: left;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.66rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mute);
  padding: 0 1rem 0.45rem 0;
  border-bottom: 1px solid var(--line-strong);
  white-space: nowrap;
}

.alloc td {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  padding: 0.55rem 1rem 0.55rem 0;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
  color: var(--ink-2);
}

.alloc td:first-child {
  color: var(--ink);
  white-space: nowrap;
}

.alloc td.num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.alloc-scroll {
  overflow-x: auto;
}