:root {
  --ink: #111; --paper: #f4f4f2; --mute: #6b6b68;
  --safe-t: env(safe-area-inset-top); --safe-b: env(safe-area-inset-bottom);
}
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; height: 100%; background: var(--paper); color: var(--ink);
  font: 13px/1.4 ui-monospace, "SF Mono", Menlo, Consolas, monospace; overscroll-behavior: none; }
[hidden] { display: none !important; }
button { font: inherit; color: inherit; }

.logo { letter-spacing: .32em; font-weight: 700; font-size: 15px; }

#splash { position: fixed; inset: 0; display: grid; place-items: center; background: var(--paper); z-index: 50;
  transition: opacity .3s; }
#splash.gone { opacity: 0; pointer-events: none; }

/* вход через подписку */
#gate { min-height: 100%; display: grid; place-items: center; padding: 24px; }
.gate-inner { width: 100%; max-width: 340px; text-align: center; }
.gate-inner .logo { margin-bottom: 18px; }
.gate-inner p { margin: 0 0 18px; }
.btn { display: block; width: 100%; padding: 13px 14px; margin-top: 10px; border: 1px solid var(--ink);
  background: var(--paper); text-transform: uppercase; letter-spacing: .12em; cursor: pointer; border-radius: 0; }
.btn.solid, .btn:active { background: var(--ink); color: var(--paper); }
.btn[disabled] { opacity: .5; }
.msg { color: var(--mute); min-height: 1.4em; margin-top: 14px !important; }

/* сетка */
.head { padding: calc(18px + var(--safe-t)) 16px 12px; display: flex; justify-content: space-between; align-items: baseline;
  border-bottom: 1px solid var(--ink); }
.sub { color: var(--mute); }
.grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; padding: 14px 16px calc(24px + var(--safe-b)); }
@media (min-width: 640px) { .grid { grid-template-columns: repeat(3, 1fr); max-width: 900px; margin: 0 auto; } }
.card { text-align: left; padding: 0; background: none; border: 1px solid var(--ink); cursor: pointer; display: block; }
.card:active { background: var(--ink); color: var(--paper); }
.thumb { position: relative; aspect-ratio: 4 / 5; overflow: hidden; background: #ddd; border-bottom: 1px solid var(--ink); }
.thumb img { width: 100%; height: 100%; object-fit: cover; display: block; filter: grayscale(1) contrast(1.5) brightness(1.05); }
/* псевдо-растр поверх превью */
.thumb::after { content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .55;
  background: radial-gradient(circle, var(--paper) 38%, transparent 42%) 0 0 / 4px 4px; mix-blend-mode: screen; }
.card-body { padding: 8px 9px 9px; }
.card-title { font-weight: 700; text-transform: uppercase; letter-spacing: .08em; }
.card-meta { display: flex; justify-content: space-between; color: var(--mute); margin-top: 3px; }
.card:active .card-meta { color: inherit; }

/* просмотр */
#viewer { position: fixed; inset: 0; background: var(--paper); z-index: 20; }
#frame { width: 100%; height: 100%; border: 0; display: block; }
.pill { position: absolute; top: calc(10px + var(--safe-t)); left: 50%; transform: translateX(-50%); z-index: 3;
  display: flex; background: var(--paper); border: 1px solid var(--ink); }
.pill-btn { background: none; border: 0; padding: 9px 14px; cursor: pointer; min-width: 44px; }
.pill-btn + .pill-btn { border-left: 1px solid var(--ink); }
.pill-btn:active { background: var(--ink); color: var(--paper); }
.pill-btn.liked #v-heart { }
.sheet { position: absolute; left: 0; right: 0; bottom: 0; z-index: 4; background: var(--paper); border-top: 1px solid var(--ink);
  padding: 16px 16px calc(18px + var(--safe-b)); max-height: 60%; overflow-y: auto; }
.sheet h2 { margin: 0 28px 4px 0; text-transform: uppercase; letter-spacing: .12em; font-size: 14px; }
.sheet .meta { color: var(--mute); margin-bottom: 10px; }
.sheet p { margin: 0; white-space: pre-wrap; }
.sheet-x { position: absolute; top: 8px; right: 10px; background: none; border: 0; font-size: 24px; line-height: 1; cursor: pointer; padding: 6px; }
@media (hover: hover) and (pointer: fine) and (min-width: 800px) {
  .sheet { left: 14px; right: auto; bottom: 14px; width: 340px; border: 1px solid var(--ink); }
}