:root {
  --bg: #0b0a07;
  --ink: #e6e1d6;
  --dim: #9a927f;
  --faint: #6b6455;
  --amber: #ffb000;
  --bright: #ffd75e;
  --line: rgba(255, 176, 0, 0.18);
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;
}

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

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 18px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

/* ---------- masthead ---------- */

.masthead {
  border-bottom: 1px solid var(--line);
  padding: 14px 24px;
}

.sysline {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--dim);
  text-decoration: none;
}

.sysline .part {
  color: var(--amber);
}

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

/* ---------- layout ---------- */

.wrap {
  max-width: 44rem;
  margin: 0 auto;
  padding: 56px 24px 72px;
}

h1 {
  font-family: var(--mono);
  font-size: 25px;
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 0 0 20px;
}

.paper h1 {
  font-size: 22px;
  max-width: 38rem;
}

.label {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--amber);
  margin: 44px 0 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
}

.intro {
  color: var(--ink);
  margin: 0;
  max-width: 38rem;
}

/* ---------- index list ---------- */

.papers {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: paper;
}

.papers li {
  counter-increment: paper;
  position: relative;
  padding: 18px 0 18px 3rem;
  border-bottom: 1px solid rgba(255, 176, 0, 0.09);
}

.papers li::before {
  content: counter(paper, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 22px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--faint);
  letter-spacing: 0.1em;
}

.p-title {
  display: block;
  color: var(--ink);
  text-decoration: none;
  font-size: 18px;
  line-height: 1.45;
  border-bottom: 1px solid transparent;
}

.p-title:hover {
  color: var(--bright);
}

.p-meta {
  display: block;
  margin-top: 6px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.11em;
  color: var(--faint);
  text-transform: lowercase;
}

/* ---------- paper page ---------- */

.crumb {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  margin: 0 0 32px;
}

.crumb a {
  color: var(--dim);
  text-decoration: none;
}

.crumb a:hover {
  color: var(--amber);
}

.meta {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--faint);
  text-transform: lowercase;
  margin: 0;
}

.dot {
  color: var(--faint);
  margin: 0 0.6em;
}

.abstract p {
  margin: 0 0 1em;
  max-width: 38rem;
}

.abstract.pending .pending-note {
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.6;
  color: var(--dim);
  padding: 14px 16px;
  border: 1px dashed var(--line);
  border-radius: 3px;
  background: rgba(255, 176, 0, 0.03);
}

.read {
  margin: 40px 0 0;
}

.cta {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--amber);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 176, 0, 0.35);
  padding-bottom: 2px;
}

.cta:hover {
  color: var(--bright);
  border-bottom-color: var(--bright);
}

/* ---------- footer ---------- */

.foot {
  border-top: 1px solid var(--line);
  padding: 22px 24px 40px;
  max-width: 44rem;
  margin: 0 auto;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
}

.foot a {
  color: var(--dim);
  text-decoration: none;
}

.foot a:hover {
  color: var(--amber);
}

.foot-note {
  color: var(--faint);
  margin: 10px 0 0;
  letter-spacing: 0.06em;
}

/* ---------- responsive ---------- */

@media (max-width: 620px) {
  body {
    font-size: 17px;
  }

  .wrap {
    padding: 40px 20px 56px;
  }

  h1 {
    font-size: 21px;
  }

  .paper h1 {
    font-size: 19px;
  }

  .papers li {
    padding-left: 2.4rem;
  }
}