:root {
  --bg: #fff;
  --fg: #000;
  --alt: #f2f2f2;
  --line: #e3e3e3;
  --muted: #4a4d52;
  --accent: #d71921;
  --gutter: 16px;
  --gap: 16px;
}
@media (min-width: 900px) {
  :root { --gutter: 32px; --gap: 24px; }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: 'Inter Tight', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.4;
}

.wrap { max-width: 1440px; margin: 0 auto; padding: 0 var(--gutter); }
.rule { height: 2px; background: var(--fg); }

/* Nagłówek */
.head { padding-top: 16px; }
.meta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0 0;
  font: 400 12px/1.2 'Space Mono', monospace;
  text-transform: uppercase;
  color: var(--muted);
}
h1 {
  margin: 24px 0 0.22em;
  font-weight: 800;
  font-size: clamp(48px, 9vw, 120px);
  line-height: 0.95;
  letter-spacing: -0.04em;
}
.kicker { margin: 0 0 20px; font: 400 clamp(13px, 1.6vw, 16px)/1.3 'Space Mono', monospace; text-transform: uppercase; letter-spacing: 0.04em; color: var(--fg); }
.tagline { margin: 0 0 12px; font-size: clamp(20px, 2.2vw, 24px); font-weight: 500; line-height: 1.25; max-width: 40ch; }
.howto { margin: 0 0 32px; font-size: 15px; color: var(--muted); max-width: 62ch; }

/* Siatka */
.grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--gap);
  grid-template-columns: 1fr;
}
@media (min-width: 480px) { .grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 900px) { .grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1280px) { .grid { grid-template-columns: repeat(4, 1fr); } }

.card { position: relative; min-width: 0; }

/* Kafel z logo */
.tile {
  --s: 0.5;
  position: relative;
  aspect-ratio: 1;
  overflow: hidden;
  border: 1px solid var(--line);
  -webkit-touch-callout: none;
  user-select: none;
  -webkit-user-select: none;
}
.tile-inner {
  width: 640px;
  height: 640px;
  transform-origin: 0 0;
  transform: scale(var(--s));
}

/* Wiersz z etykietą i guzikiem */
.row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 10px;
}
.label {
  display: flex;
  gap: 12px;
  font: 400 12px/1.3 'Space Mono', monospace;
  text-transform: uppercase;
  min-width: 0;
}
.code { font-weight: 700; flex: none; }

.like {
  flex: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--fg);
  border-radius: 0;
  background: var(--bg);
  color: var(--fg);
  font: 400 13px/1 'Space Mono', monospace;
  cursor: pointer;
  transition: background-color 0.15s, color 0.15s, border-color 0.15s;
}
.like:disabled { cursor: default; opacity: 0.35; }
@media (hover: hover) {
  .like:not(:disabled):hover { background: var(--fg); color: var(--bg); }
}
.like:focus-visible { background: var(--fg); color: var(--bg); outline: 2px solid var(--accent); outline-offset: 2px; }
.like.flash, .like.flash:hover, .like.flash:focus-visible { background: var(--accent); border-color: var(--accent); color: #fff; }

/* Pikselowy pasek */
.bar {
  display: grid;
  grid-template-columns: repeat(20, 1fr);
  gap: 2px;
  height: 6px;
  margin-top: 8px;
}
.seg { background: var(--line); }
.seg.on { background: var(--fg); }
.seg.on.lead { background: var(--accent); }

/* Dymek z liczbą kliknięć */
.tip {
  position: absolute;
  right: 0;
  bottom: 22px;
  padding: 6px 8px;
  background: var(--fg);
  color: var(--bg);
  font: 400 12px/1 'Space Mono', monospace;
  text-transform: uppercase;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.12s;
}
@media (hover: hover) { .card:hover .tip { opacity: 1; } }
.card:focus-within .tip, .card.show-tip .tip { opacity: 1; }

/* Stopka */
.foot { margin-top: 48px; padding-bottom: 32px; }
.foot p { margin: 12px 0 0; font: 400 12px/1.5 'Space Mono', monospace; color: var(--muted); }

@media (prefers-reduced-motion: reduce) {
  .like, .tip { transition: none; }
}