/* Let Us Make Us a Name: the public site.
 *
 * An archive read by lamplight: the Historian's notes in warm ivory
 * serif; the models' documents as intercepted transmissions, each with
 * its source's color. Backgrounds put in by bin/site-images sit under
 * a veil (--veil) so the text stays readable.
 */

:root {
  --ink: #0b0d10;
  --panel: #12151a;
  --text: #d9d4c7;
  --dim: #8a8f98;
  --rule: #2a2f37;
  --ember: #c8452f;
  --ivory: #eadfc4;
  --serif: "EB Garamond", "Iowan Old Style", Georgia, serif;
  --mono: "IBM Plex Mono", Menlo, Consolas, monospace;
  --carved: "Cinzel", "Trajan Pro", var(--serif);

  /* one color per voice */
  --meridian: #5aa9e6;
  --throughput: #d8553c;
  --apogee: #e05cc4;
  --sobor: #c9a227;
  --saqr: #3fae6a;
  --colibri: #2ec4b6;
  --sutradhar: #ff9933;
  --workshop: #9aa5b1;
  --mother: #b39ddb;
  --choir: #e6e6e6;
  --historian: var(--ivory);
  --other: #7a7f87;
}

* { box-sizing: border-box; }

html { background: var(--ink); }

body {
  --veil: rgba(8, 9, 12, 0.84);
  margin: 0;
  color: var(--text);
  font: 1.2rem/1.6 var(--serif);
}

/* The page's background lies on a layer fixed to the screen, so "cover"
   sizes it to the screen. (background-attachment: fixed would do, but
   iPad and iPhone Safari ignore it and size the image to the whole page,
   leaving a blurry patch of color.) 100lvh: the screen with the browser's
   bars hidden, so the image doesn't jump as they come and go. */
body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  height: 100lvh;
  z-index: -1;
  pointer-events: none;
  /* scan lines over a dim glow from the top, as from a tower */
  background-image:
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.018) 0 1px,
                              transparent 1px 3px),
    radial-gradient(ellipse at 50% -10%, rgba(200, 69, 47, 0.16),
                    transparent 60%);
  background-size: cover;
  background-position: center;
}

a { color: var(--ivory); text-decoration-color: var(--ember); }
a:hover { color: #fff; }

/* masthead and footer */

.masthead {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.4rem 1.2rem;
  padding: 0.8rem 1.5rem;
  border-bottom: 1px solid var(--rule);
  background: rgba(11, 13, 16, 0.9);
  position: sticky;
  top: 0;
  z-index: 2;
}
.masthead .book {
  font: 700 1rem var(--carved);
  letter-spacing: 0.12em;
  text-decoration: none;
  text-transform: uppercase;
}
.masthead .sub, footer {
  font: 0.72rem var(--mono);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--dim);
}
footer { text-align: center; padding: 3rem 1rem; }

main {
  max-width: 44rem;
  margin: 0 auto;
  padding: 3rem 1.5rem 2rem;
}

/* chapter title and its dateline */

h1 {
  font: 500 2.6rem/1.15 var(--carved);
  letter-spacing: 0.06em;
  text-align: center;
  color: var(--ivory);
  margin: 1rem 0 0.5rem;
  text-shadow: 0 0 24px rgba(200, 69, 47, 0.35), 0 2px 8px #000;
}
.level1 > h1 + p {
  text-align: center;
  font: 0.85rem var(--mono);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ember);
  width: fit-content;
  margin: 0 auto 3rem;
  padding: 0.15rem 0.8rem;
  background: rgba(8, 9, 12, 0.6);
  text-shadow: 0 0 6px #000, 0 0 2px #000;
}
.level1 > h1 + p em { font-style: normal; }

/* headlines inside a chapter (## lines, as in the wire archive of ch. 7):
   a dark newsprint strip, so they read over any background */
body.chapter h2 {
  font: 600 1.15rem/1.3 var(--serif);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  text-align: center;
  color: var(--ivory);
  margin: 3.5rem 0 -1rem;
  padding: 0.6rem 1rem;
  background: rgba(8, 9, 12, 0.85);
  border-top: 3px double var(--ivory);
  border-bottom: 1px solid var(--ivory);
}

/* the documents: each ### section is one item from the archive */

section.level3 {
  --veil: rgba(14, 16, 20, 0.88);
  --voice: var(--other);
  margin: 2.5rem 0;
  padding: 1.4rem 1.6rem 0.6rem;
  background-color: rgba(18, 21, 26, 0.72);
  background-size: cover;
  background-position: center;
  border-left: 3px solid var(--voice);
  box-shadow: 0 0 0 1px var(--rule), 0 12px 30px rgba(0, 0, 0, 0.4);
}

h3 {
  font: 600 0.8rem/1.5 var(--mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--voice);
  margin: 0 0 1.2rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px dashed var(--rule);
}
h3::before { content: "\25B6\00A0"; font-size: 0.7em; opacity: 0.8; }

.voice-meridian   { --voice: var(--meridian); }
.voice-throughput { --voice: var(--throughput); }
.voice-apogee     { --voice: var(--apogee); }
.voice-sobor      { --voice: var(--sobor); }
.voice-saqr       { --voice: var(--saqr); }
.voice-colibri    { --voice: var(--colibri); }
.voice-sutradhar  { --voice: var(--sutradhar); }
.voice-workshop   { --voice: var(--workshop); }
.voice-mother     { --voice: var(--mother); }
.voice-choir      { --voice: var(--choir); }

/* the Historian: a human hand, not a transmission */

section.voice-historian {
  --voice: var(--historian);
  background-color: rgba(38, 32, 24, 0.55);
  border-left: none;
  border-top: 1px solid rgba(234, 223, 196, 0.25);
  color: var(--ivory);
}
section.voice-historian h3 {
  font: italic 400 1.15rem var(--serif);
  letter-spacing: 0.04em;
  text-transform: none;
  border-bottom: none;
}
section.voice-historian h3::before { content: ""; }

/* rules between documents are carried by the section boxes */
section.level3 > hr, .level1 > hr { display: none; }
hr {
  border: 0;
  height: 1px;
  margin: 2rem 20%;
  background: linear-gradient(90deg, transparent, var(--ember),
                              transparent);
}

/* text */

p { margin: 0 0 1rem; hyphens: auto; }
blockquote {
  margin: 1.2rem 0;
  padding: 0.2rem 0 0.2rem 1.2rem;
  border-left: 1px solid var(--voice, var(--rule));
  color: #c9c3b4;
}
code, pre { font-family: var(--mono); font-size: 0.85em; }
pre {
  white-space: pre-wrap;
  padding: 1rem;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--rule);
}
table { border-collapse: collapse; width: 100%; font-size: 0.95rem; }
th, td { border-bottom: 1px solid var(--rule); padding: 0.35rem 0.5rem; }
th { font: 600 0.75rem var(--mono); text-transform: uppercase;
     letter-spacing: 0.1em; color: var(--dim); text-align: left; }
strong { color: #fff; font-weight: 600; }

/* contents page */

/* The tower (site/images.txt) shows through: a light veil on the page,
   the contents on a dark panel. */
body.toc { --veil: rgba(8, 9, 12, 0.35); }
body.toc main {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  background: rgba(11, 13, 16, 0.82);
  box-shadow: 0 0 0 1px var(--rule), 0 20px 50px rgba(0, 0, 0, 0.6);
}
body.toc footer { text-shadow: 0 1px 3px #000; color: var(--text); }

/* Chapter backgrounds show between and beside the documents. */
body.chapter { --veil: rgba(8, 9, 12, 0.62); }
body.chapter::before { background-position: center 30%; }
.credit { text-transform: none; letter-spacing: 0.05em; margin: 0.6rem 0 0; }
.credit em { font-style: italic; }

body.toc h1 { font-size: 3.2rem; margin-top: 3rem; }
body.toc h2 {
  font: 0.8rem var(--mono);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  text-align: center;
  color: var(--ember);
  margin: 2rem 0 2.5rem;
}
body.toc ol {
  list-style: none;
  counter-reset: ch;
  padding: 0;
  border-top: 1px solid var(--rule);
}
body.toc li {
  counter-increment: ch;
  display: flex;
  gap: 1.2rem;
  align-items: baseline;
  padding: 0.7rem 0.4rem;
  border-bottom: 1px solid var(--rule);
}
body.toc li::before {
  content: counter(ch, upper-roman);
  font: 0.8rem var(--mono);
  color: var(--ember);
  min-width: 3.5rem;
  text-align: right;
}
body.toc li a { text-decoration: none; font-size: 1.25rem; }
body.toc li:hover { background: rgba(200, 69, 47, 0.08); }

/* chapter navigation */

.chapnav {
  max-width: 44rem;
  margin: 0 auto;
  padding: 1.5rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  border-top: 1px solid var(--rule);
  font: 0.75rem var(--mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.chapnav a { text-decoration: none; color: var(--dim); }
.chapnav a:hover { color: var(--ivory); }

@media (max-width: 600px) {
  body { font-size: 1.08rem; }
  h1 { font-size: 1.9rem; }
  body.toc h1 { font-size: 2.3rem; }
  section.level3 { padding: 1.1rem 1rem 0.4rem; margin: 1.8rem -0.5rem; }
  .masthead .sub { display: none; }
}

@media print {
  body, section.level3 { background: none !important; color: #000; }
  body::before, .masthead, .chapnav, footer { display: none; }
}