/* BVS main site — section blocks (hero board, work, services, anatomy, timeline,
   terms, contact). Tokens come from styles.css. */

:root {
  --night: #0b0c0e;
  --ease: cubic-bezier(.22, .61, .36, 1);
  --shadow-card: 0 1px 2px color-mix(in srgb, var(--shade) 6%, transparent), 0 8px 22px color-mix(in srgb, var(--shade) 10%, transparent);
}

/* ---------- 1. Hero ---------- */
.hero__grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: 48px 64px; align-items: center; }
.hero__title { font-size: clamp(44px, 5.6vw, 84px); max-width: none; }
.hero__text .lead { margin-top: 32px; }
.cta-row { display: flex; flex-wrap: wrap; align-items: center; gap: 16px 28px; margin-top: 36px; }
.link-arrow { font-size: 15px; font-weight: 500; color: var(--muted); }
.link-arrow:hover { color: var(--accent-ink); }

.hb {
  position: relative; margin: 0; padding: 6% 6% 4%;
  background: radial-gradient(color-mix(in srgb, var(--text) 9%, transparent) 1px, transparent 1.2px) 8px 8px / 16px 16px, var(--base);
  border: 1px solid var(--line); border-radius: 16px;
}
.hb__in { position: relative; aspect-ratio: 100 / 87; }
.hb__slot { position: absolute; left: var(--l); top: var(--t); width: var(--w); }
.hb__slot .ad { box-shadow: var(--shadow-card); }
.hb__slot--master .ad { outline: 2px solid var(--accent); outline-offset: 4px; }
.hb__lbl { display: block; margin-top: 8px; font: 500 10.5px/1.2 var(--mono); letter-spacing: .01em; color: var(--muted); white-space: nowrap; font-variant-numeric: tabular-nums; }
.hb__slot--master .hb__lbl { margin-top: 12px; color: var(--accent-ink); }
.hb__more { position: absolute; left: 42%; top: 53%; width: 22%; margin: 0; font-size: 12.5px; line-height: 1.45; color: var(--muted); }
.hb__spec { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 4px 16px; margin-top: 14px; padding-top: 12px; border-top: 1px dashed var(--line); font: 11px/1.5 var(--mono); color: var(--muted); }

/* ---------- 3. Selected work ---------- */
.work { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 40px 24px; }
.case { grid-column: span 5; display: grid; gap: 18px; }
.case--wide { grid-column: span 7; }
.case__cover {
  position: relative; height: clamp(260px, 30vw, 420px); overflow: hidden; border-radius: 12px;
  display: grid; place-items: center;
  background: radial-gradient(color-mix(in srgb, var(--text) 8%, transparent) 1px, transparent 1.2px) 8px 8px / 16px 16px, var(--sub);
}
.case__cover > * { transition: transform .6s var(--ease); }
.case:hover .case__cover > * { transform: scale(1.025); }
.case__meta h3 { font-size: 20px; }
.case__meta p { margin-top: 4px; font-size: 14px; color: var(--muted); font-family: var(--mono); font-size: 12.5px; }
.case:hover h3 { color: var(--accent-ink); }
.proto-note { margin-top: 24px; font-size: 12.5px; color: var(--faint); max-width: 70ch; }

/* ---------- 4. Services with sketches ---------- */
.services li { grid-template-columns: 48px 1fr; align-content: start; }
.services .num { grid-row: auto; }
.services h3 { grid-column: 2; }
.services p { grid-column: 2; }
.services .num { grid-column: 1; grid-row: 2; }
.services h3 { grid-row: 2; }
.services p { grid-row: 3; }
.mini {
  grid-column: 1 / -1; grid-row: 1; position: relative; margin-bottom: 28px;
  aspect-ratio: 16 / 7; border-radius: 10px; overflow: hidden; background: var(--sub);
}
.mini i { position: absolute; display: block; font-style: normal; }
.m-cols { inset: 0; background: repeating-linear-gradient(90deg, color-mix(in srgb, var(--accent) 4.5%, transparent) 0 6.6%, transparent 6.6% 8.333%); }
.m-aa { left: 8%; top: 14%; font: 600 clamp(40px, 5vw, 64px)/1 var(--sans); letter-spacing: -0.04em; color: var(--text); }
.m-sw { bottom: 16%; width: 8%; aspect-ratio: 1; border-radius: 50%; background: var(--c); }
.m-sw:nth-child(3) { left: 8%; } .m-sw:nth-child(4) { left: 18%; } .m-sw:nth-child(5) { left: 28%; }
.m-rule { left: 50%; top: 30%; width: 40%; height: 0; border-top: 1px dashed color-mix(in srgb, var(--accent) 60%, transparent); }
.m-rule::after { content: ""; position: absolute; left: 0; top: 18px; width: 70%; height: 10px; border-radius: 99px; background: var(--text); }
.m-rule--s { top: 62%; }
.m-rule--s::after { width: 46%; background: var(--mid); }

.mini--volume { display: grid; grid-template-columns: repeat(9, 1fr); gap: 6px; padding: 7% 6%; box-sizing: border-box; align-content: center; }
.mini--volume i { position: relative; aspect-ratio: 3 / 4; border-radius: 3px; background: var(--paper); box-shadow: 0 1px 2px color-mix(in srgb, var(--shade) 8%, transparent); }
.mini--volume i::after { content: ""; position: absolute; left: 14%; bottom: 12%; width: 56%; height: 7%; border-radius: 99px; background: var(--text); }
.mini--volume i::before { content: ""; position: absolute; left: 28%; top: 18%; width: 44%; aspect-ratio: 1; border-radius: 50%; background: var(--mid); }

.m-master { left: 7%; top: 14%; height: 72%; aspect-ratio: 4 / 5; border-radius: 4px; background: var(--accent); }
.m-arrow { left: 35%; top: 50%; width: 9%; height: 0; border-top: 1.5px dashed color-mix(in srgb, var(--text) 40%, transparent); }
.mini--auto { display: block; }
.m-out { top: auto; bottom: 20%; width: var(--w); aspect-ratio: var(--ar); border-radius: 3px; background: var(--paper); box-shadow: 0 1px 2px color-mix(in srgb, var(--shade) 8%, transparent); }
.m-out:nth-child(3) { left: 47%; } .m-out:nth-child(4) { left: 66%; } .m-out:nth-child(5) { left: 80%; width: 16% !important; }
.m-out::after { content: ""; position: absolute; left: 12%; bottom: 14%; width: 60%; height: 8%; min-height: 3px; border-radius: 99px; background: var(--text); }

.m-grid { inset: 12% 30%; border: 1px dashed color-mix(in srgb, var(--accent) 50%, transparent); background: linear-gradient(color-mix(in srgb, var(--accent) 35%, transparent), color-mix(in srgb, var(--accent) 35%, transparent)) 50% 0 / 1px 100% no-repeat, linear-gradient(color-mix(in srgb, var(--accent) 35%, transparent), color-mix(in srgb, var(--accent) 35%, transparent)) 0 50% / 100% 1px no-repeat; }
.m-logo { left: 50%; top: 50%; height: 56%; aspect-ratio: 1; transform: translate(-50%, -50%); border-radius: 50%; background: var(--text); box-shadow: inset 0 0 0 10px var(--text), inset 0 0 0 22px var(--sub); }
.m-pen { left: calc(50% + 12%); top: 22%; width: 10px; height: 10px; background: var(--paper); border: 1.5px solid var(--accent); box-shadow: -60px 70px 0 -1.5px var(--paper), -60px 70px 0 0 var(--accent); }

/* ---------- 5. System anatomy ---------- */
.anat { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.anat__panel { display: grid; align-content: start; gap: 12px; }
.anat__panel h3 { margin-top: 12px; }
.anat__panel p { color: var(--muted); font-size: 16px; }
.anat__view { height: 320px; border-radius: 12px; overflow: hidden; }
.anat__view pre { margin: 0; padding: 26px 24px; font: 13px/1.75 var(--mono); white-space: pre; overflow: hidden; }
.anat__view--code, .anat__view--tree { background: var(--code-bg); color: var(--code-fg); }
.c-k, .c-d { color: var(--code-key); }
.c-v { color: var(--code-val); }
.c-f { color: var(--code-dim); }
.c-ok { color: var(--code-key); }
.anat__view--tpl { display: grid; place-items: center; background: radial-gradient(color-mix(in srgb, var(--text) 9%, transparent) 1px, transparent 1.2px) 8px 8px / 16px 16px, var(--base); border: 1px solid var(--line); }
.tpl { position: relative; height: 84%; aspect-ratio: 4 / 5; border-radius: 6px; box-shadow: var(--shadow-card); }
.tpl .ad { position: absolute; inset: 0; height: 100%; }
.tpl > i, .tpl > span { position: absolute; display: block; }
.tpl__safe { inset: 8%; border: 1px dashed rgba(28, 35, 64, .55); pointer-events: none; }
.tpl__zone { left: 5%; right: 5%; bottom: 21%; height: 20%; border: 1.5px solid var(--code-key); background: color-mix(in srgb, var(--code-key) 14%, transparent); }
.tpl__lbl { z-index: 1; font: 500 9.5px/1.3 var(--mono); letter-spacing: .04em; padding: 2px 5px; border-radius: 3px; white-space: nowrap; }
.tpl__lbl--safe { left: 8%; top: 3%; background: var(--bg); color: var(--text); transform: translateY(-15%); }
.tpl__lbl--zone { right: 5%; bottom: calc(21% + 20% + 4px); background: var(--code-key); color: var(--night); }
.anat__note { margin-top: 24px; font-size: 12px; color: var(--faint); }

/* ---------- 6. Process timeline ---------- */
.tl { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 24px; position: relative; }
.tl::before { content: ""; position: absolute; left: 0; right: 0; top: 19px; height: 1px; background: var(--line); }
.tl__step { position: relative; display: grid; align-content: start; gap: 14px; }
.tl__n {
  position: relative; z-index: 1; width: 40px; height: 40px; display: grid; place-items: center;
  border-radius: 50%; background: var(--bg); border: 1px solid var(--accent); color: var(--accent-ink);
  font: 500 15px var(--sans); font-variant-numeric: tabular-nums;
}
.tl__step:nth-child(2) .tl__n { background: var(--accent); color: var(--on-accent); }
.tl__step h3 { margin-top: 10px; font-size: 26px; font-weight: 600; letter-spacing: -.03em; }
.tl dl { margin: 0; display: grid; gap: 4px; }
.tl dt { margin-top: 12px; font-size: 12px; font-weight: 500; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.tl dd { margin: 0; font-size: 15px; line-height: 1.55; }

/* ---------- 8. Working terms ---------- */
.terms { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; border-top: 1px solid var(--line); }
.terms li { display: grid; align-content: start; gap: 10px; padding: 32px 32px 36px 0; border-bottom: 1px solid var(--line); }
.terms li:not(:nth-child(3n+1)) { padding-left: 32px; border-left: 1px solid var(--line); }
.terms__ic { width: 40px; height: 40px; display: grid; place-items: center; margin-bottom: 8px; border-radius: 10px; background: var(--sub); }
.terms__ic svg { width: 20px; height: 20px; fill: none; stroke: var(--accent-ink); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.terms h3 { font-size: 18px; }
.terms p { color: var(--muted); font-size: 15px; }

/* ---------- 9. Contact ---------- */
.contact__grid { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: 48px 80px; align-items: end; }
.contact__grid h2 { margin-bottom: 24px; }
.eyebrow--inv { color: var(--band-muted); }
.contact__lead { color: var(--band-soft); font-size: 18px; max-width: 46ch; margin-bottom: 36px; }
.contact__list { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 14px 32px; padding-top: 28px; border-top: 1px solid var(--band-line); font-size: 15px; }
.contact__list dt { color: var(--band-muted); font-size: 12px; letter-spacing: .08em; text-transform: uppercase; padding-top: 3px; }
.contact__list dd { margin: 0; color: var(--band-fg); }

/* ---------- Responsive ---------- */
@media (max-width: 1000px) {
  .hero__grid { grid-template-columns: 1fr; }
  .hb { max-width: 560px; }
  .tl { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 48px; }
  .tl::before { display: none; }
  .terms { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .terms li, .terms li:not(:nth-child(3n+1)) { padding: 28px 24px 32px 0; border-left: 0; }
  .terms li:nth-child(2n) { padding-left: 24px; border-left: 1px solid var(--line); }
}
@media (max-width: 900px) {
  .work { grid-template-columns: 1fr; }
  .case, .case--wide { grid-column: auto; }
  .anat { grid-template-columns: 1fr; }
  .contact__grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .hb__lbl { font-size: 8.5px; margin-top: 5px; }
  .hb__slot:not(.hb__slot--master) .hb__lbl { letter-spacing: -.02em; }
  .hb__more, .hb__px { display: none; }
  .tl { grid-template-columns: 1fr; }
  .terms { grid-template-columns: 1fr; }
  .terms li, .terms li:nth-child(2n), .terms li:not(:nth-child(3n+1)) { padding: 24px 0 28px; border-left: 0; }
  .anat__view pre { font-size: 12px; padding: 20px 18px; }
}
@media (prefers-reduced-motion: reduce) {
  .case__cover > * { transition: none; }
}