/* ============================================================================
   NIMMERSATT — Deck kit
   Shared components for the case-specific decks (Case 2–5). Builds on tokens.css.
   Each deck loads:  tokens.css → deck.css → js/main.js
   Co-branding (Case 5): set `style="--client:#xxxxxx"` on <body> to introduce a
   second, client accent next to Nimmersatt's --accent.
   ========================================================================== */

:root { --client: var(--accent); }

/* --- Progress + skip (shared with index) ---------------------------------- */
.progress {
  position: fixed; top: 0; left: 0; height: 2px; width: 0;
  background: var(--accent); z-index: calc(var(--z-nav) + 1);
  transition: width 0.1s linear;
}
.skip-link {
  position: fixed; top: -60px; left: var(--pad-edge); z-index: var(--z-preloader);
  background: var(--dark); color: var(--on-dark); padding: 0.6rem 1rem;
  font-size: var(--text-label); letter-spacing: 0.12em; text-transform: uppercase;
  transition: top var(--dur-ui) var(--ease-spring);
}
.skip-link:focus { top: 12px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

/* --- Deck nav (back to overview + label) ---------------------------------- */
.dnav {
  position: fixed; inset: 0 0 auto 0; z-index: var(--z-nav);
  display: flex; align-items: center; justify-content: space-between;
  padding: clamp(0.9rem, 2vw, 1.4rem) var(--pad-edge);
  background: color-mix(in srgb, var(--bg) 80%, transparent);
  backdrop-filter: blur(14px) saturate(1.2);
  -webkit-backdrop-filter: blur(14px) saturate(1.2);
  border-bottom: 1px solid var(--faint);
}
.dnav__brand { display: flex; align-items: center; gap: 0.6rem; }
.dnav__mark { width: clamp(24px, 3vw, 32px); }
.dnav__back { font-size: var(--text-label); letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted); transition: color var(--dur-ui) var(--ease-spring); }
.dnav__back:hover { color: var(--fg); }
.dnav__tag { font-size: var(--text-label); letter-spacing: 0.16em; text-transform: uppercase; color: var(--client); }

/* --- Cover ---------------------------------------------------------------- */
.cover {
  min-height: 100svh; display: flex; flex-direction: column; justify-content: flex-end;
  padding-bottom: clamp(2.5rem, 6vw, 5rem); position: relative;
}
.cover__kicker { display: flex; gap: 0.6rem; align-items: center; margin-bottom: clamp(1.5rem, 4vw, 3rem); }
.cover__dot { width: 9px; height: 9px; border-radius: 50%; background: var(--client); }
.cover__title {
  font-family: var(--font-display); font-weight: 400; text-transform: uppercase;
  letter-spacing: 0.02em; line-height: 0.92; font-size: clamp(2.6rem, 9vw, 8rem); max-width: 16ch;
}
.cover__sub { max-width: 50ch; margin-top: clamp(1.5rem, 3vw, 2.5rem); font-size: var(--text-sub); line-height: 1.55; }
.cover__sub em { color: var(--client); font-style: normal; }
.cover__meta { margin-top: clamp(2rem, 4vw, 3rem); display: flex; flex-wrap: wrap; gap: 0.6rem 2rem; }

/* --- Section scaffold ----------------------------------------------------- */
.dsection { padding-block: var(--gap-section); border-top: 1px solid var(--faint); }
.dindex { font-size: var(--text-label); letter-spacing: 0.18em; text-transform: uppercase; color: var(--client); margin-bottom: 1.1rem; }
.dhead {
  font-family: var(--font-display); font-weight: 400; text-transform: uppercase;
  letter-spacing: 0.02em; line-height: 1.04; font-size: var(--text-display); max-width: 18ch;
}
.lede { margin-top: clamp(1.5rem, 3vw, 2.5rem); max-width: 56ch; color: var(--muted); line-height: 1.7; }
.lede strong { color: var(--fg); font-weight: 600; }

/* --- Two columns ---------------------------------------------------------- */
.twocol { display: grid; grid-template-columns: 1fr; gap: clamp(1.5rem, 3vw, 3rem); margin-top: clamp(2rem, 4vw, 3rem); }
@media (min-width: 820px) { .twocol { grid-template-columns: 1fr 1fr; } }
.twocol h3 { font-size: var(--text-label); letter-spacing: 0.16em; text-transform: uppercase; color: var(--client); margin-bottom: 0.9rem; }
.twocol p { color: var(--muted); line-height: 1.7; }

/* --- Mood / reference grid ------------------------------------------------ */
.moodgrid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--gap-tile); margin-top: clamp(2rem, 4vw, 3rem); }
@media (min-width: 820px) { .moodgrid { grid-template-columns: repeat(3, 1fr); } }
.mood { position: relative; overflow: hidden; border: 1px solid var(--faint); background: var(--panel); }
.mood img {
  width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4 / 5;
  filter: contrast(1.03); transition: transform 0.7s var(--ease-out-expo);
}
.mood:hover img { transform: scale(1.04); }
.mood__cap {
  position: absolute; left: 0; bottom: 0; padding: 0.5rem 0.7rem;
  font-size: var(--text-label); letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--on-dark); background: color-mix(in srgb, var(--dark) 72%, transparent);
}
.mood--tall img { aspect-ratio: 3 / 4; }
.mood--wide { grid-column: span 2; }
.mood--wide img { aspect-ratio: 16 / 9; }

/* --- Case list (deep-dives) ----------------------------------------------- */
.caselist { display: grid; grid-template-columns: 1fr; gap: 1px; background: var(--faint); border: 1px solid var(--faint); margin-top: clamp(2rem, 4vw, 3rem); }
@media (min-width: 760px) { .caselist { grid-template-columns: 1fr 1fr; } }
.dcase { background: var(--bg); padding: clamp(1.5rem, 2.8vw, 2.6rem); display: flex; flex-direction: column; gap: 0.85rem; min-height: clamp(260px, 28vw, 340px); transition: background var(--dur-ui) var(--ease-spring); }
.dcase:hover { background: var(--panel); }
.dcase__top { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; }
.dcase__client { font-size: var(--text-label); letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted); }
.dcase__year { font-size: var(--text-label); color: var(--client); }
.dcase__name { font-family: var(--font-display); font-weight: 400; text-transform: uppercase; letter-spacing: 0.03em; line-height: 0.95; font-size: clamp(1.5rem, 2.7vw, 2.35rem); margin-top: auto; }
.dcase__metric { color: var(--fg); line-height: 1.55; }
.dcase__tag { font-size: var(--text-label); letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); }

/* --- Treatment beats (Case 5) --------------------------------------------- */
.beats { margin-top: clamp(2rem, 4vw, 3rem); border-top: 1px solid var(--faint); }
.beat { display: grid; grid-template-columns: 1fr; gap: 0.5rem 2rem; padding-block: clamp(1.5rem, 3vw, 2.25rem); border-bottom: 1px solid var(--faint); }
@media (min-width: 820px) { .beat { grid-template-columns: 0.7fr 2fr; } }
.beat__label { font-family: var(--font-display); font-weight: 400; text-transform: uppercase; letter-spacing: 0.03em; line-height: 0.95; font-size: clamp(1.3rem, 2.2vw, 1.9rem); }
.beat__no { font-size: var(--text-label); letter-spacing: 0.16em; color: var(--client); display: block; margin-bottom: 0.5rem; }
.beat__body { color: var(--muted); line-height: 1.7; }
.beat__body b { color: var(--fg); font-weight: 600; }

/* --- Specs / feasibility -------------------------------------------------- */
.specs { display: grid; grid-template-columns: 1fr; gap: 1px; background: var(--faint); border: 1px solid var(--faint); margin-top: clamp(2rem, 4vw, 3rem); }
@media (min-width: 640px) { .specs { grid-template-columns: repeat(3, 1fr); } }
.spec { background: var(--bg); padding: clamp(1.25rem, 2.4vw, 2rem); }
.spec__k { font-size: var(--text-label); letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted); }
.spec__v { margin-top: 0.6rem; font-family: var(--font-display); font-weight: 400; text-transform: uppercase; line-height: 0.95; font-size: clamp(1.4rem, 2.4vw, 2rem); }

/* --- Stat row (reusable) -------------------------------------------------- */
.statrow { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap-tile); margin-top: clamp(2rem, 4vw, 3rem); }
@media (max-width: 640px) { .statrow { grid-template-columns: 1fr; gap: 2rem; } }
.statrow .num { font-family: var(--font-display); font-weight: 400; font-size: clamp(2.6rem, 7vw, 5rem); line-height: 0.85; }
.statrow .lbl { margin-top: 0.8rem; font-size: var(--text-label); letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted); }

/* --- Closing -------------------------------------------------------------- */
.dclosing { background: var(--dark); color: var(--on-dark); }
.dclosing .dhead { color: var(--on-dark); max-width: 16ch; }
.dclosing .dindex { color: var(--client); }
.dcontacts { margin-top: clamp(2.5rem, 5vw, 4rem); display: grid; grid-template-columns: 1fr; gap: 1.5rem; }
@media (min-width: 720px) { .dcontacts { grid-template-columns: repeat(3, 1fr); } }
.dcontact__k { font-size: var(--text-label); letter-spacing: 0.16em; text-transform: uppercase; color: var(--on-dark-muted); }
.dcontact__v { display: inline-block; margin-top: 0.5rem; font-size: var(--text-sub); color: var(--on-dark); position: relative; }
.dcontact__v::after { content: ""; position: absolute; left: 0; bottom: -3px; width: 100%; height: 1px; background: var(--client); transform: scaleX(0); transform-origin: right; transition: transform var(--dur-ui) var(--ease-spring); }
.dcontact__v:hover::after { transform: scaleX(1); transform-origin: left; }
.dfoot { margin-top: clamp(3rem, 7vw, 6rem); padding-top: 1.5rem; border-top: 1px solid rgba(245,245,240,0.14); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem; }
.dfoot span { font-size: var(--text-label); letter-spacing: 0.16em; text-transform: uppercase; color: var(--on-dark-muted); }

/* --- Overview hub --------------------------------------------------------- */
.hubgrid { display: grid; grid-template-columns: 1fr; gap: 1px; background: var(--faint); border: 1px solid var(--faint); margin-top: clamp(2rem, 4vw, 3rem); }
@media (min-width: 760px) { .hubgrid { grid-template-columns: 1fr 1fr; } }
.hubcard { background: var(--bg); padding: clamp(1.6rem, 3vw, 2.6rem); display: flex; flex-direction: column; gap: 0.8rem; min-height: clamp(220px, 24vw, 280px); transition: background var(--dur-ui) var(--ease-spring); }
.hubcard:hover { background: var(--panel); }
.hubcard--tool { background: var(--dark); color: var(--on-dark); }
.hubcard--tool:hover { background: var(--fg); }
.hubcard--tool .hubcard__no,
.hubcard--tool .hubcard__go { color: var(--on-dark); }
.hubcard--tool .hubcard__desc { color: var(--on-dark-read); }
.hubcard__no { font-size: var(--text-label); letter-spacing: 0.2em; color: var(--accent); }
.hubcard__name { font-family: var(--font-display); font-weight: 400; text-transform: uppercase; letter-spacing: 0.03em; line-height: 0.95; font-size: clamp(1.5rem, 2.8vw, 2.4rem); margin-top: auto; }
.hubcard__desc { color: var(--muted); line-height: 1.6; }
.hubcard__go { font-size: var(--text-label); letter-spacing: 0.16em; text-transform: uppercase; color: var(--accent); }

/* --- Cross-deck pager (injected by main.js on deck pages) ----------------- */
.deckpager {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding-block: clamp(1.5rem, 3vw, 2.25rem);
  border-top: 1px solid var(--faint);
}
.deckpager__link, .deckpager__hub {
  font-size: var(--text-label); letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--muted); transition: color var(--dur-ui) var(--ease-spring); position: relative;
}
.deckpager__next { text-align: right; }
.deckpager__hub { color: var(--client); }
.deckpager__link:hover, .deckpager__hub:hover { color: var(--fg); }
.deckpager__link::after {
  content: ""; position: absolute; left: 0; bottom: -4px; width: 100%; height: 1px;
  background: currentColor; transform: scaleX(0); transform-origin: right;
  transition: transform var(--dur-ui) var(--ease-spring);
}
.deckpager__link:hover::after { transform: scaleX(1); transform-origin: left; }
@media print { .deckpager { display: none !important; } }

/* ============================================================================
   EDITORIAL TYPE SYSTEM (deck pages) — mirrors the roles in pitch.css so text
   reads the same everywhere: BODY light + dark-ink + measured, STANDFIRST
   near-black, emphasis in the same face at full ink.
   ========================================================================== */
.twocol p,
.beat__body,
.dcase__metric,
.hubcard__desc {
  font-weight: var(--w-read);
  color: var(--ink);
  line-height: var(--lh-read);
  max-width: var(--measure);
}
.cover__sub,
.lede {
  font-weight: var(--w-lead);
  color: var(--ink-strong);
  line-height: 1.6;
}
.twocol p strong,
.beat__body b,
.lede strong,
.dcase__metric strong { font-weight: 650; color: var(--fg); }

/* ============================================================================
   HEADING FACE (decks + index casefeatures) — Rock 3D stays only on the deck
   cover title; every other heading uses Martian Mono. Loaded after pitch.css,
   so `.statrow .num` is set here to win on the index too.
   ========================================================================== */
.dhead,
.dcase__name,
.beat__label,
.spec__v,
.hubcard__name {
  font-family: var(--font-mono);
  font-weight: 700;
  letter-spacing: 0.012em;
  line-height: 1.12;
}
.dhead {
  text-transform: none;          /* sentence-case statement, calmer */
  letter-spacing: -0.01em;
  line-height: 1.14;
  font-size: clamp(1.55rem, 3.3vw, 2.6rem);
  max-width: 22ch;
}
.statrow .num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
  line-height: 1;
}
