/* 01 — THE COVER: masthead, arch, cut-out slot, cover lines */

.cover {
  --mast: clamp(84px, 27vw, 132px);
  position: relative; overflow: clip;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  max-width: 1480px; margin-inline: auto;
  padding: 14px var(--margin) 0;
}

.cover__meta {
  grid-row: 1;
  display: flex; justify-content: space-between; gap: 12px;
  padding: 9px 0 8px;
  border-top: 1px solid var(--ink); border-bottom: 1px solid var(--rule);
  font: 500 10.5px/1.3 var(--f-ui); letter-spacing: .16em; text-transform: uppercase; color: var(--muted);
}
.cover__meta-mid { display: none; }
@media (max-width: 639px) { .hide-sm { display: none; } }

/* masthead */
.mast {
  grid-row: 2; position: relative; z-index: 1;
  display: flex; flex-direction: column;
  padding-top: clamp(14px, 3vw, 28px);
  font: 400 var(--mast)/.84 var(--f-display);
  letter-spacing: -.028em;
  color: var(--ink);
}
.mast__a { align-self: flex-start; margin-left: -.04em; }
.mast__b { align-self: flex-end; margin-top: .02em; }
.mast em { color: var(--accent); font-style: italic; letter-spacing: -.035em; }

/* the arch (tinted field) and the cut-out figure share one grid cell */
.cover__arch, .cut-hero { grid-row: 3; grid-column: 1; }

.cover__arch {
  position: relative; z-index: 0;
  width: 82%; justify-self: center; align-self: stretch;
  min-height: 360px;
  margin-top: calc(var(--mast) * -.42);
  border-radius: 999px 999px 0 0;
  background:
    radial-gradient(ellipse 62% 40% at 50% 40%, rgba(246, 242, 234, .78), transparent 72%),
    linear-gradient(180deg, transparent 80%, rgba(94, 86, 75, .14)),
    var(--sand);
}
.cover__arch::before {            /* inner hairline arch */
  content: ""; position: absolute; inset: 12px 12px 0;
  border: 1px solid rgba(27, 58, 87, .38); border-bottom: 0;
  border-radius: 999px 999px 0 0;
}
.cover__arch::after {             /* issue roundel */
  content: "Issue\A 01";
  white-space: pre; text-align: center;
  position: absolute; right: -4%; top: 20%;
  display: grid; place-items: center; align-content: center;
  width: 78px; height: 78px; border-radius: 50%;
  background: var(--paper); border: 1px solid var(--accent); color: var(--accent);
  font: italic 400 22px/1 var(--f-display);
}

.cut-hero {
  position: relative; z-index: 2;
  display: flex; flex-direction: column; align-items: center; justify-content: flex-end;
  margin-top: calc(var(--mast) * -.3);
  padding-bottom: 12px;
  pointer-events: none;
}
.cut-hero img {
  width: 68%; height: auto;
  /* paper-coloured cut-out edge, works for the SVG stand-in and a real PNG */
  filter: drop-shadow(1.5px 0 0 var(--paper)) drop-shadow(-1.5px 0 0 var(--paper))
          drop-shadow(0 -1.5px 0 var(--paper)) drop-shadow(0 1px 0 var(--paper));
}
.cut-hero .slot-label {
  margin-top: 8px; text-align: center; max-width: 46ch;
  font-size: 9.5px; letter-spacing: .12em; color: var(--ink-2);
}

/* cover lines */
.cover__left, .cover__right { position: relative; z-index: 3; padding-block: 28px 8px; }
.cover__left { grid-row: 4; display: grid; gap: 28px; }
.cover__right { grid-row: 5; display: grid; gap: 22px; justify-items: start; }

.cover-line {
  max-width: 17ch;
  font: 400 clamp(30px, 8.4vw, 40px)/1.05 var(--f-display); letter-spacing: -.01em; text-wrap: balance;
}
.cover-line strong { font-weight: 400; font-style: italic; color: var(--accent); }

.cover-toc .kicker { padding-bottom: 8px; border-bottom: 1px solid var(--ink); }
.cover-toc a {
  display: flex; align-items: baseline; gap: .6em; padding: 9px 0 8px;
  font: 400 15px/1.25 var(--f-text); text-decoration: none;
  transition: color .4s var(--ease);
}
.cover-toc a:hover { color: var(--accent); }
.cover-toc i { flex: 1; min-width: 14px; border-bottom: 1px dotted var(--muted); transform: translateY(-3px); }
.cover-toc b { font: italic 400 17px/1 var(--f-display); font-variant-numeric: lining-nums tabular-nums; }

.cover-quote { position: relative; max-width: 20ch; }
.cover-quote p {
  font: italic 400 clamp(32px, 8.6vw, 42px)/1.08 var(--f-display); letter-spacing: -.01em;
  text-indent: -.42em;
}
.cover-quote p::before { content: "“"; color: var(--accent); }
.cover-quote p::after { content: "”"; color: var(--accent); }
.cover-quote footer { margin-top: 14px; font: 500 10.5px/1.4 var(--f-ui); letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
.cover__intro { max-width: 30ch; font-size: 1.125rem; line-height: 1.5; color: var(--ink-2); }

.barcode { display: none; }

.cover::after {                    /* the ground line */
  content: ""; grid-column: 1 / -1; grid-row: 6; height: 1px; margin-top: 36px; background: var(--ink);
}

/* tablet: roomier stack */
@media (min-width: 640px) and (max-width: 959px) {
  .cover { --mast: clamp(120px, 22vw, 190px); }
  .cover__meta-mid { display: block; }
  .cover__arch { width: 60%; }
  .cut-hero img { width: 46%; }
  .cover__left { grid-template-columns: 1fr 1fr; align-items: end; gap: 32px; }
  .cover__right { grid-template-columns: 1fr 1fr; align-items: start; column-gap: 32px; }
  .cover__right .cover__intro, .cover__right .btn { grid-column: 2; }
  .cover-quote { grid-row: span 2; }
}

/* desktop: the full cover composition on a 12-column grid */
@media (min-width: 960px) {
  .cover {
    --mast: clamp(150px, 18.2vw, 276px);
    grid-template-columns: repeat(12, minmax(0, 1fr));
    grid-template-rows: auto auto minmax(0, 1fr) auto;
    column-gap: var(--gutter);
    min-height: calc(100svh - var(--header-h));
  }
  .cover__meta { grid-column: 1 / -1; }
  .cover__meta-mid { display: block; }
  .mast {
    grid-column: 1 / -1;
    flex-direction: row; justify-content: space-between; align-items: baseline;
    padding-top: clamp(18px, 2.2vw, 34px);
  }
  .mast__a, .mast__b { align-self: auto; margin-top: 0; }

  .cover__arch, .cut-hero { grid-column: 4 / 10; grid-row: 2 / 4; align-self: stretch; }
  .cover__arch {
    width: 100%; justify-self: stretch; min-height: 0;
    margin-top: calc(var(--mast) * .52);
  }
  .cover__arch::after { width: 92px; height: 92px; font-size: 26px; right: 7%; top: 21%; }
  .cut-hero { margin-top: calc(var(--mast) * .08); padding-bottom: 14px; }
  .cut-hero img { flex: 1 1 0; min-height: 0; width: 100%; object-fit: contain; object-position: center bottom; }
  .cut-hero .slot-label { margin-top: 10px; }

  .cover__left, .cover__right {
    grid-row: 3; align-self: stretch;
    display: flex; flex-direction: column; justify-content: space-between;
    padding-block: clamp(22px, 2.4vw, 36px) clamp(18px, 2vw, 30px);
  }
  .cover__left { grid-column: 1 / 4; }
  .cover__right { grid-column: 10 / 13; align-items: flex-start; gap: 0; }
  .cover__right > * + * { margin-top: 22px; }
  .cover-line { font-size: clamp(28px, 2.9vw, 46px); }
  .cover-quote p { font-size: clamp(30px, 2.9vw, 46px); }
  .cover__intro { font-size: 1.0625rem; }
  .cover-toc a { font-size: 14.5px; }

  .barcode {
    display: block; margin-top: auto !important; padding: 8px 10px 5px; background: var(--paper);
    border: 1px solid var(--rule);
  }
  .barcode::before {
    content: ""; display: block; width: 118px; height: 40px;
    background: repeating-linear-gradient(90deg,
      var(--ink) 0 2px, transparent 2px 4px, var(--ink) 4px 5px, transparent 5px 8px,
      var(--ink) 8px 11px, transparent 11px 12px, var(--ink) 12px 13px, transparent 13px 16px);
  }
  .barcode span { display: block; margin-top: 4px; font: 500 8.5px/1 var(--f-ui); letter-spacing: .16em; color: var(--ink-2); }

  .cover::after { grid-row: 4; margin-top: 0; }
}