/* Bay Boys Book Brunch
   Layout: one editorial column; a stacked gold-tile B⁴ masthead beside a
   library "date due" card, a deep-green Book of the Month band, then a
   three-up shelf. Light and dark follow the visitor's system setting. */

:root {
  --paper: #F1F4ED;
  --card: #FBFCF8;
  --ink: #14211B;
  --muted: #55645B;
  --rule: #C8D1C4;
  --gold: #E3A50A;
  --green: #1E5A3E;
  --band: #183A2A;
  --band-ink: #EEF2E9;
  --band-muted: #A9BDB0;
  --tile-ink: #14211B;
  --shadow: rgba(20, 33, 27, 0.45);

  --display: "Big Shoulders Display", "Arial Narrow", "Helvetica Neue", sans-serif;
  --body: "Literata", "Iowan Old Style", "Palatino Linotype", Georgia, serif;
  --type: "Courier Prime", "Courier New", ui-monospace, monospace;

  --step--1: 0.8125rem;
  --step-0: 1.0625rem;
  --step-1: 1.3125rem;
  --step-2: 1.75rem;
  --step-3: clamp(2rem, 5vw, 2.75rem);

  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #0E1813;
    --card: #15231C;
    --ink: #E8EDE3;
    --muted: #9CAAA0;
    --rule: #2B3D33;
    --gold: #F0B526;
    --green: #86CCA4;
    --band: #1B3328;
    --band-ink: #EEF2E9;
    --band-muted: #A3B7AA;
    --shadow: rgba(0, 0, 0, 0.6);
    color-scheme: dark;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
img { max-width: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: var(--step-0);
  line-height: 1.6;
  padding-bottom: env(safe-area-inset-bottom, 0px);
}

.wrap {
  max-width: 1080px;
  margin: 0 auto;
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
}

h1, h2, h3 { text-wrap: balance; margin: 0; }
p { margin: 0; }
a { color: var(--green); text-underline-offset: 3px; }
a:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; }

.eyebrow {
  font-family: var(--type);
  font-size: var(--step--1);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}
.h2 {
  font-family: var(--display);
  font-weight: 800;
  font-size: var(--step-3);
  line-height: 1;
  text-transform: uppercase;
  letter-spacing: 0.01em;
}
.h2-group { display: grid; gap: 10px; align-content: start; }

/* Top line */
.top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 8px 24px;
  padding-block: 20px;
  padding-top: max(20px, env(safe-area-inset-top, 0px));
  border-bottom: 1px solid var(--rule);
}
.mark {
  font-family: var(--display);
  font-weight: 800;
  font-size: 1.5rem;
  line-height: 1;
  letter-spacing: 0.02em;
}
.mark sup { font-size: 0.6em; color: var(--gold); vertical-align: 0.7em; }

/* Hero */
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 40px;
  padding-block: 48px 64px;
}
@media (min-width: 880px) {
  .hero { grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); align-items: end; gap: 56px; }
}
.masthead { display: grid; gap: 28px; min-width: 0; }
.name {
  font-family: var(--display);
  font-weight: 800;
  text-transform: uppercase;
  font-size: clamp(3.1rem, 12.5vw, 8rem);
  line-height: 0.92;
  letter-spacing: 0.005em;
  display: grid;
  gap: 0.08em;
}
.line { display: flex; align-items: baseline; gap: 0.06em; }
.tile {
  display: inline-grid;
  place-items: center;
  width: 0.9em;
  height: 0.9em;
  background: var(--gold);
  color: var(--tile-ink);
  border-radius: 3px;
  line-height: 1;
  padding-top: 0.04em;
  flex: none;
  transform: translateY(0.06em);
}
.lede {
  font-size: var(--step-1);
  line-height: 1.45;
  max-width: 34ch;
}

/* Library date-due card */
.due {
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: 2px;
  font-family: var(--type);
  font-size: 0.95rem;
  min-width: 0;
  box-shadow: 0 1px 0 var(--rule), 0 18px 40px -28px var(--shadow);
}
.due-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 4px 16px;
  padding: 16px 20px 12px;
  border-bottom: 2px solid var(--ink);
}
.due-head strong { font-size: 1.05rem; letter-spacing: 0.14em; }
.due-head span { color: var(--muted); font-size: var(--step--1); letter-spacing: 0.06em; }
.due dl { margin: 0; }
.due-row {
  display: grid;
  grid-template-columns: 5.5rem minmax(0, 1fr);
  border-bottom: 1px solid var(--rule);
}
.due-row dt {
  padding: 10px 12px 10px 20px;
  border-right: 1px solid var(--rule);
  color: var(--muted);
  font-size: var(--step--1);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.due-row dd {
  margin: 0;
  padding: 10px 20px 10px 14px;
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
}
.due-row dd small { display: block; color: var(--muted); font-size: var(--step--1); }
.due-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px 16px;
  padding: 14px 20px 18px;
  color: var(--muted);
  font-size: var(--step--1);
}
.stamp {
  font-family: var(--type);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.16em;
  color: var(--green);
  border: 2px solid var(--green);
  border-radius: 3px;
  padding: 4px 10px;
  transform: rotate(-5deg);
  white-space: nowrap;
}

/* Two-column sections (about, run of show) */
.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px 56px;
  padding-block: 56px;
  border-top: 1px solid var(--rule);
}
.split.run { padding-bottom: 72px; }
@media (min-width: 880px) {
  .split { grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr); }
}
.prose { display: grid; gap: 16px; max-width: 62ch; }

/* Run of show */
.timeline { list-style: none; margin: 0; padding: 0; display: grid; }
.timeline li {
  display: grid;
  grid-template-columns: 4.5rem minmax(0, 1fr);
  gap: 16px;
  padding-block: 14px;
  border-bottom: 1px solid var(--rule);
}
.timeline li:first-child { border-top: 1px solid var(--rule); }
.timeline time {
  font-family: var(--type);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  padding-top: 2px;
}
.timeline p { color: var(--muted); }
.timeline b { font-weight: 600; color: var(--ink); }

/* Book of the Month band */
.band { background: var(--band); color: var(--band-ink); }
.botm {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px 56px;
  padding-block: 64px;
}
@media (min-width: 880px) {
  .botm { grid-template-columns: auto minmax(0, 1fr); align-items: center; }
}
.band .eyebrow { color: var(--band-muted); }
.cover {
  width: 180px;
  max-width: 100%;
  aspect-ratio: 2 / 3;
  background: var(--gold);
  color: var(--tile-ink);
  border-radius: 2px 6px 6px 2px;
  padding: 18px 16px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: inset 6px 0 0 rgba(20, 33, 27, 0.18), 0 22px 40px -24px rgba(0, 0, 0, 0.6);
}
.cover-title {
  font-family: var(--display);
  font-weight: 800;
  text-transform: uppercase;
  font-size: 1.9rem;
  line-height: 0.95;
}
.cover-author { font-family: var(--type); font-size: var(--step--1); letter-spacing: 0.08em; }
.botm-text { display: grid; gap: 14px; max-width: 60ch; }
.botm-title {
  font-family: var(--display);
  font-weight: 800;
  text-transform: uppercase;
  font-size: clamp(2.4rem, 7vw, 4rem);
  line-height: 0.95;
}
.botm-sub { font-style: italic; font-size: var(--step-1); }
.botm-meta { font-family: var(--type); font-size: var(--step--1); letter-spacing: 0.08em; color: var(--band-muted); }

/* Shelf */
.shelf-head {
  display: grid;
  gap: 12px;
  padding-block: 72px 32px;
}
.shelf-head p:last-child { color: var(--muted); max-width: 56ch; }
.shelf {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 300px), 1fr));
  gap: 40px 32px;
  padding-bottom: 72px;
}
.theme {
  display: grid;
  gap: 12px;
  align-content: start;
  border-top: 3px solid var(--ink);
  padding-top: 14px;
  min-width: 0;
}
.theme h3 {
  font-family: var(--display);
  font-weight: 800;
  text-transform: uppercase;
  font-size: var(--step-2);
  line-height: 1;
  letter-spacing: 0.02em;
}
.theme .q { font-style: italic; color: var(--muted); }
.books { list-style: none; margin: 4px 0 0; padding: 0; display: grid; gap: 12px; }
.books li { display: grid; gap: 2px; }
.kind {
  font-family: var(--type);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--green);
}
.books cite { font-style: normal; font-weight: 600; }
.books span:last-child { color: var(--muted); font-size: 0.95rem; }

/* Letter + seat */
.closing {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 48px 56px;
  padding-block: 56px 72px;
  border-top: 1px solid var(--rule);
}
@media (min-width: 880px) {
  .closing { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
}
.closing section { display: grid; gap: 16px; align-content: start; min-width: 0; }
.closing p { max-width: 52ch; }
.note { font-family: var(--type); font-size: var(--step--1); color: var(--muted); letter-spacing: 0.04em; }

/* Newsletter sign-up, styled like a library card */
.signup {
  display: grid;
  gap: 14px;
  max-width: 52ch;
  padding: 20px;
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: 2px;
}
.field { display: grid; gap: 6px; }
.field span {
  font-family: var(--type);
  font-size: var(--step--1);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}
.field input {
  font: inherit;
  font-size: max(16px, var(--step-0));
  color: var(--ink);
  background: transparent;
  border: 0;
  border-bottom: 2px solid var(--ink);
  border-radius: 0;
  padding: 6px 0;
  min-height: 44px;
}
.field input:focus { outline: none; border-bottom-color: var(--gold); }
.signup button {
  justify-self: start;
  font-family: var(--type);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--paper);
  background: var(--green);
  border: 0;
  border-radius: 3px;
  padding: 12px 20px;
  min-height: 44px;
  cursor: pointer;
}
.signup button:hover { filter: brightness(1.08); }
.signup button:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; }
.signup button:disabled { opacity: 0.6; cursor: default; }
.checklist { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.checklist li { display: grid; grid-template-columns: 1.4rem minmax(0, 1fr); gap: 10px; align-items: baseline; }
.checklist li::before {
  content: "";
  width: 0.9rem;
  height: 0.9rem;
  border: 2px solid var(--ink);
  border-radius: 2px;
  transform: translateY(2px);
}

footer {
  border-top: 1px solid var(--rule);
  padding-block: 24px 40px;
  color: var(--muted);
  font-size: var(--step--1);
  font-family: var(--type);
  letter-spacing: 0.04em;
}
footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 24px; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; }
}