/* =====================================================================
   nikhilballal.com / v2 - Kinetic Brutalist - CASE STUDY layer
   Loaded AFTER styles.css; reuses every token, nav, cursor, footer.
   Only adds case-study-specific structure.
   ===================================================================== */

.cs { background: var(--bone); }

/* ---------- masthead ---------- */
.cs-masthead { padding: clamp(7rem, 16vh, 11rem) var(--padR) clamp(2rem, 6vh, 4rem) var(--padL); }
.cs-back { display: inline-flex; align-items: center; gap: 0.5rem; font-family: var(--font-m);
  font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-soft);
  min-height: 44px; transition: gap 0.3s var(--ease), color 0.3s ease; }
.cs-back:hover { color: var(--hot); gap: 0.85rem; }
.cs-title { font-weight: 800; font-size: clamp(3.4rem, 13vw, 13rem); line-height: 0.82; letter-spacing: -0.04em;
  margin: clamp(1.4rem, 4vh, 2.6rem) 0 clamp(1.6rem, 4vh, 2.6rem); }
.cs-lead { font-size: var(--fz-lead); line-height: 1.2; font-weight: 440; max-width: 34ch; letter-spacing: -0.01em; }
.cs-lead .hot { font-weight: 500; }
.cs-meta { display: grid; grid-template-columns: repeat(auto-fit, minmax(11rem, 1fr)); gap: 1.4rem 2rem;
  margin-top: clamp(2.5rem, 6vh, 4rem); border-top: 1px solid var(--ink); padding-top: 1.6rem; }
.cs-meta dt { font-family: var(--font-m); font-size: 0.62rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink-label); }
.cs-meta dd { font-size: 1.02rem; font-weight: 500; margin-top: 0.4rem; }
.cs-meta dd a { border-bottom: 1.5px solid var(--hot); padding-bottom: 1px; }
.cs-meta dd a:hover { color: var(--hot); }

/* ---------- showcase figure (device, contained on a tinted band) ---------- */
.cs-figure { background: var(--bone-2); border-block: 1px solid var(--ink);
  padding: clamp(2.5rem, 6vh, 5rem) var(--padR) clamp(1.4rem, 4vh, 2.6rem) var(--padL);
  display: grid; justify-items: center; gap: 1rem; }
.cs-figure img { width: auto; max-width: min(100%, 25rem); max-height: 86vh; height: auto;
  border: 1px solid var(--ink); background: var(--bone-3); box-shadow: 0 34px 64px -34px oklch(0.205 0.014 56 / 0.32); }
.cs-figure figcaption { font-family: var(--font-m); font-size: 0.66rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-label); }

/* ---------- generic section ---------- */
.cs-section { padding: clamp(3.5rem, 9vh, 7rem) var(--padR) clamp(3.5rem, 9vh, 7rem) var(--padL); }
.cs-section--tight { padding-block: clamp(2.5rem, 6vh, 4.5rem); }
.cs-grid { display: grid; grid-template-columns: minmax(0, 0.42fr) minmax(0, 1fr); gap: clamp(1.6rem, 5vw, 5rem); align-items: start; }
.cs-kicker { position: sticky; top: 6rem; }
.cs-statement { font-weight: 700; font-size: clamp(1.7rem, 4.2vw, 3.4rem); line-height: 1.06; letter-spacing: -0.025em; max-width: 24ch; }
.cs-body { display: grid; gap: 1.2rem; max-width: 60ch; font-size: var(--fz-body); line-height: 1.55; color: var(--ink-2); }
.cs-body p strong { color: var(--ink); font-weight: 600; }
.cs-statement + .cs-body { margin-top: 2rem; }
.cs-body code { font-family: var(--font-m); font-size: 0.84em; background: var(--bone-3);
  border: 1px solid var(--hair); border-radius: 3px; padding: 0.1em 0.36em; color: var(--ink); word-break: break-word; }

/* ---------- the fleet (3 surfaces, varied) ---------- */
.cs-fleet { background: var(--ink-bg); color: var(--on-ink); padding: clamp(4rem, 11vh, 9rem) var(--padR) clamp(4rem, 11vh, 9rem) var(--padL); }
.cs-fleet .eyebrow { color: var(--on-ink-soft); }
.cs-fleet .eyebrow__sep { background: var(--on-ink-hair); }
.cs-fleet__h { font-weight: 800; font-size: clamp(2.2rem, 6vw, 5rem); line-height: 0.94; letter-spacing: -0.03em; margin: 1.4rem 0 clamp(2.5rem, 6vh, 4rem); }
.cs-surfaces { display: grid; gap: clamp(1.5rem, 3vh, 2.5rem); }
.cs-surface { display: grid; grid-template-columns: 3rem minmax(0, 0.9fr) minmax(0, 1.3fr); gap: clamp(1rem, 3vw, 2.6rem);
  align-items: baseline; border-top: 1px solid var(--on-ink-hair); padding-top: clamp(1.4rem, 3vh, 2.2rem); }
.cs-surface__no { font-family: var(--font-m); color: var(--signal); font-size: 0.9rem; }
.cs-surface__name { font-weight: 700; font-size: clamp(1.5rem, 3.4vw, 2.6rem); letter-spacing: -0.02em; line-height: 1; }
.cs-surface__name small { display: block; font-family: var(--font-m); font-weight: 400; font-size: 0.62rem;
  letter-spacing: 0.14em; text-transform: uppercase; color: var(--on-ink-soft); margin-top: 0.7rem; }
.cs-surface__desc { color: var(--on-ink-soft); font-size: var(--fz-body); line-height: 1.5; }
.cs-fleet__note { margin-top: clamp(2.5rem, 6vh, 4rem); font-family: var(--font-m); font-size: 0.78rem;
  letter-spacing: 0.04em; color: var(--on-ink-soft); border-top: 1px solid var(--on-ink-hair); padding-top: 1.4rem; }
.cs-fleet__note b { color: var(--signal); font-weight: 500; }

/* ---------- before/after compare ---------- */
.cs-compare { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(0.8rem, 2vw, 1.6rem); margin-top: clamp(2rem, 5vh, 3rem); }
.cs-compare__item { position: relative; border: 1px solid var(--ink); overflow: hidden; background: var(--bone-3); aspect-ratio: 10 / 13; }
.cs-compare__item img { width: 100%; height: 100%; object-fit: cover; object-position: top center; display: block; }
.cs-compare__tag { position: absolute; top: 0.8rem; left: 0.8rem; font-family: var(--font-m); font-size: 0.6rem;
  letter-spacing: 0.14em; text-transform: uppercase; padding: 0.3rem 0.6rem; background: var(--ink); color: var(--bone); border-radius: 3px; }
.cs-compare__item--light .cs-compare__tag { background: var(--signal); color: var(--ink); }

/* ---------- spec list ---------- */
.cs-spec { display: grid; gap: 0; border-top: 1px solid var(--hair); margin-top: clamp(1.5rem, 4vh, 2.5rem); }
.cs-spec div { display: grid; grid-template-columns: minmax(8rem, 0.34fr) 1fr; gap: 1rem; padding: clamp(0.9rem, 2vh, 1.3rem) 0;
  border-bottom: 1px solid var(--hair); align-items: baseline; }
.cs-spec dt { font-family: var(--font-m); font-size: 0.66rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-label); }
.cs-spec dd { font-size: 1.02rem; line-height: 1.4; color: var(--ink-2); }
.cs-spec dd b { color: var(--ink); font-weight: 600; }

/* ---------- outcome ---------- */
.cs-outcome { padding: clamp(4rem, 11vh, 8rem) var(--padR) clamp(4rem, 11vh, 8rem) var(--padL); }
.cs-outcome__h { font-weight: 800; font-size: clamp(2.2rem, 7vw, 6rem); line-height: 0.92; letter-spacing: -0.03em; max-width: 16ch; }
.cs-outcome__h .hot { color: var(--hot); }

/* ---------- next project ---------- */
.cs-next { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 1rem 2rem;
  padding: clamp(2.5rem, 6vh, 4rem) var(--padR) clamp(2.5rem, 6vh, 4rem) var(--padL); border-top: 1px solid var(--ink); }
.cs-next__label { font-family: var(--font-m); font-size: 0.66rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink-label); }
.cs-next__title { font-weight: 800; font-size: clamp(2.4rem, 8vw, 6rem); letter-spacing: -0.03em; line-height: 0.9;
  display: inline-flex; align-items: center; gap: 1rem; transition: color 0.3s ease, gap 0.3s var(--ease); }
.cs-next__title:hover { color: var(--hot); gap: 1.6rem; }

@media (max-width: 860px) {
  .cs-grid { grid-template-columns: 1fr; gap: 1.6rem; }
  .cs-kicker { position: static; }
  .cs-surface { grid-template-columns: 2.2rem 1fr; }
  .cs-surface__desc { grid-column: 2; }
  .cs-compare { grid-template-columns: 1fr; }
  .cs-meta { grid-template-columns: 1fr 1fr; }
}