/* Percy Studio: pagine dello studio.
   Concetto: la tessera vuota dei puzzle a scorrimento come marchio.
   Layout: testo allineato a sinistra, una sola cosa interattiva (la scacchiera) in apertura. */

:root {
  --ground: #E3E7E4;
  --ink: #12201E;
  --muted: #475754;
  --teal: #0E6A62;
  --tile: #F4F6F3;
  --tile-edge: #A9B5B0;
  --line: #BAC5C0;
  --on-teal: #F4F6F3;
  --font-display: 'Familjen Grotesk', 'Helvetica Neue', Arial, sans-serif;
  --font-body: 'Source Serif 4', Georgia, 'Times New Roman', serif;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ground: #0F1B19;
    --ink: #DDE6E2;
    --muted: #9DB0AA;
    --teal: #5CC9B8;
    --tile: #1B2D2A;
    --tile-edge: #31483F;
    --line: #27403A;
    --on-teal: #0F1B19;
    color-scheme: dark;
  }
}

:root[data-theme="dark"] {
  --ground: #0F1B19;
  --ink: #DDE6E2;
  --muted: #9DB0AA;
  --teal: #5CC9B8;
  --tile: #1B2D2A;
  --tile-edge: #31483F;
  --line: #27403A;
  --on-teal: #0F1B19;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.125rem;
  line-height: 1.65;
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
}

a { color: var(--teal); text-underline-offset: 0.2em; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--teal); outline-offset: 3px; }

.wrap { max-width: 68rem; margin: 0 auto; }

/* Intestazione */
.site-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 2rem;
  padding-block: 1.5rem;
}

.mark {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--ink);
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.01em;
}
.mark svg { width: 1.6rem; height: 1.6rem; display: block; }

.site-nav { display: flex; flex-wrap: wrap; gap: 0.25rem 1.75rem; align-items: center; font-family: var(--font-display); font-size: 1rem; }
.site-nav a { color: var(--ink); text-decoration: none; }
.site-nav a:hover { color: var(--teal); text-decoration: underline; }
.site-nav .lang { color: var(--muted); }

/* Apertura */
.opening {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: 3rem 4rem;
  align-items: center;
  padding-block: 3rem 5rem;
}

.opening h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  line-height: 1.04;
  letter-spacing: -0.025em;
  margin: 0 0 1.5rem;
  text-wrap: balance;
}

.opening .lead { font-size: 1.25rem; max-width: 34rem; color: var(--muted); margin: 0; }

/* Scacchiera interattiva */
.board-wrap { justify-self: end; width: min(100%, 26rem); }

.board {
  position: relative;
  width: 100%;
  aspect-ratio: 1;
}

.cell {
  position: absolute;
  width: 33.3333%;
  height: 33.3333%;
  padding: 4px;
}
.cell::after {
  content: "";
  display: block;
  width: 100%;
  height: 100%;
  border: 1px dashed var(--line);
  border-radius: 3px;
}

.tile {
  position: absolute;
  width: 33.3333%;
  height: 33.3333%;
  left: calc(var(--c) * 33.3333%);
  top: calc(var(--r) * 33.3333%);
  padding: 4px;
  transition: left 0.18s ease, top 0.18s ease;
}
.tile button {
  display: block;
  width: 100%;
  height: 100%;
  padding: 0;
  margin: 0;
  background: var(--tile);
  border: 1px solid var(--tile-edge);
  border-radius: 3px;
  box-shadow: 0 2px 0 var(--tile-edge);
  cursor: pointer;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.tile button:hover { border-color: var(--teal); }
.tile svg { display: block; width: 100%; height: 100%; }

.board.solved .tile button { border-color: var(--teal); box-shadow: 0 2px 0 var(--teal); }

.board-tools {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1.25rem;
  margin-top: 1.1rem;
  font-family: var(--font-display);
  font-size: 1rem;
}
.board-tools button {
  font: inherit;
  color: var(--on-teal);
  background: var(--teal);
  border: 0;
  border-radius: 3px;
  padding: 0.5rem 1.1rem;
  cursor: pointer;
}
.board-tools button:hover { filter: brightness(1.08); }
.board-status { color: var(--muted); margin: 0; }

/* Sezioni */
.block { padding-block: 4rem; border-top: 1px solid var(--line); }
.block > .wrap > h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  letter-spacing: -0.015em;
  line-height: 1.15;
  margin: 0 0 2rem;
}

.game {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 2.5rem 4rem;
  align-items: start;
}
.game figure { margin: 0; }
.game img { display: block; width: 100%; height: auto; aspect-ratio: 16 / 10; object-fit: cover; border-radius: 2px; }
.game h3 { font-family: var(--font-display); font-weight: 700; font-size: 1.7rem; letter-spacing: -0.015em; line-height: 1.15; margin: 0 0 1rem; }
.game p { margin: 0 0 1.5rem; max-width: 36rem; }

.facts { display: grid; grid-template-columns: max-content minmax(0, 1fr); gap: 0.4rem 1.5rem; margin: 0 0 2rem; font-size: 1rem; }
.facts dt { font-family: var(--font-display); font-weight: 600; }
.facts dd { margin: 0; color: var(--muted); }

.actions { display: flex; flex-wrap: wrap; gap: 0.75rem 1rem; font-family: var(--font-display); }
.btn {
  display: inline-block;
  padding: 0.7rem 1.4rem;
  border-radius: 3px;
  border: 1px solid var(--teal);
  background: var(--teal);
  color: var(--on-teal);
  text-decoration: none;
  font-size: 1rem;
}
.btn:hover { filter: brightness(1.08); text-decoration: none; }
.btn.quiet { background: transparent; color: var(--teal); }
.btn.quiet:hover { background: color-mix(in srgb, var(--teal) 12%, transparent); filter: none; }

.soon {
  margin-top: 3rem;
  display: flex;
  gap: 1.5rem;
  align-items: center;
  padding: 1.5rem;
  border: 1px dashed var(--tile-edge);
  border-radius: 3px;
}
.soon svg { flex: none; width: 3.5rem; height: 3.5rem; }
.soon h3 { font-family: var(--font-display); font-size: 1.2rem; margin: 0 0 0.25rem; }
.soon p { margin: 0; color: var(--muted); }

.contact p { margin: 0 0 0.5rem; max-width: 36rem; }
.mail-reveal a { font-family: var(--font-display); font-size: 1.3rem; font-weight: 600; user-select: all; }
button.btn { font-family: var(--font-display); cursor: pointer; }

.site-foot {
  border-top: 1px solid var(--line);
  padding-block: 2rem 3rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem 2rem;
  font-family: var(--font-display);
  font-size: 0.95rem;
  color: var(--muted);
}
.site-foot a { color: var(--muted); }
.site-foot a:hover { color: var(--teal); }
.site-foot ul { display: flex; flex-wrap: wrap; gap: 0.25rem 1.5rem; list-style: none; margin: 0; padding: 0; }

@media (max-width: 760px) {
  .opening { grid-template-columns: minmax(0, 1fr); padding-block: 1.5rem 3.5rem; }
  .board-wrap { justify-self: start; }
  .game { grid-template-columns: minmax(0, 1fr); }
  .block { padding-block: 3rem; }
}

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