/* ─────────────────────────────────────────────
   Services — sticky full-page slides
   Brand grounds from Style Guide expressions:
   cream · midnight · cinnabar · bone
───────────────────────────────────────────── */
.svc-stack {
  position: relative;
}

.svc-slide {
  position: sticky;
  top: 0;
  height: 100vh;
  height: 100dvh;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  color: var(--slide-fg);
  background: var(--slide-bg);
  overflow: hidden;
}
.svc-slide:nth-child(1) { z-index: 1; }
.svc-slide:nth-child(2) { z-index: 2; }
.svc-slide:nth-child(3) { z-index: 3; }
.svc-slide:nth-child(4) { z-index: 4; }

.svc-slide--cream {
  --slide-bg: var(--cream);
  --slide-fg: var(--navy);
  --slide-muted: rgba(14, 27, 45, 0.56);
  --slide-rule: rgba(14, 27, 45, 0.12);
  --slide-accent: var(--red);
  --slide-dot: var(--red);
  --slide-surface: var(--warm);
  background: linear-gradient(to bottom, #f5ebd9 0%, #efe4ce 100%);
}
.svc-slide--midnight {
  --slide-bg: var(--navy);
  --slide-fg: var(--cream);
  --slide-muted: rgba(245, 235, 217, 0.6);
  --slide-rule: rgba(245, 235, 217, 0.16);
  --slide-accent: var(--camel);
  --slide-dot: #e26545;
  --slide-surface: #1a2740;
  background: linear-gradient(to bottom, #0e1b2d 0%, #1a2740 100%);
}
.svc-slide--cinnabar {
  --slide-bg: var(--red);
  --slide-fg: var(--cream);
  --slide-muted: rgba(245, 235, 217, 0.76);
  --slide-rule: rgba(245, 235, 217, 0.22);
  --slide-accent: var(--cream);
  --slide-dot: var(--cream);
  --slide-surface: #a33419;
  background: linear-gradient(to bottom, #c0411f 0%, #a33419 100%);
}
.svc-slide--bone {
  --slide-bg: #e8e1d4;
  --slide-fg: var(--navy);
  --slide-muted: rgba(14, 27, 45, 0.56);
  --slide-rule: rgba(14, 27, 45, 0.12);
  --slide-accent: var(--red);
  --slide-dot: var(--red);
  --slide-surface: var(--cream);
  background: linear-gradient(to bottom, #e8e1d4 0%, #ded5c4 100%);
}

.svc-slide-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 112px var(--pad) 36px;
  width: 100%;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(280px, 0.9fr);
  gap: 80px;
  align-items: center;
  flex: 1;
}
.svc-slide-aside {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.svc-slide-name {
  font-family: var(--font-sans);
  font-size: clamp(40px, 5.4vw, 80px);
  font-weight: 500;
  letter-spacing: -0.04em;
  line-height: 0.92;
  text-transform: lowercase;
}
.svc-slide-name .stop { color: var(--slide-accent); background: currentColor; }

.svc-slide-quote {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(22px, 2.4vw, 30px);
  line-height: 1.3;
  letter-spacing: -0.005em;
  max-width: 30rem;
  width: 100%;
  margin-top: 28px;
  color: var(--slide-fg);
  text-wrap: balance;
}

.svc-slide-desc {
  font-size: 16px;
  line-height: 1.65;
  color: var(--slide-muted);
  max-width: 30rem;
  width: 100%;
  margin-top: 24px;
}

.svc-slide-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 28px;
}
.svc-slide-tag {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--slide-muted);
  border: 1px solid var(--slide-rule);
  padding: 6px 12px;
}

.svc-slide-includes-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--slide-muted);
  margin: 0 0 8px;
}
.svc-slide-list {
  list-style: none;
}
.svc-slide-list li {
  font-size: 15px;
  line-height: 1.5;
  padding: 12px 0;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  border-top: 1px solid var(--slide-rule);
}
.svc-slide-list li:last-child { border-bottom: 1px solid var(--slide-rule); }
.svc-slide-list .feat-check {
  background: var(--slide-dot);
  margin-top: 8px;
}

.svc-slide-cta {
  display: inline-block;
  margin-top: 32px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: lowercase;
  color: var(--slide-fg);
  border-bottom: 1px solid var(--slide-rule);
  padding-bottom: 3px;
  transition: border-color 0.2s, color 0.2s;
}
.svc-slide-cta:hover { border-color: var(--slide-fg); }

.svc-slide-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--pad) 28px;
  width: 100%;
}
.svc-slide-scroll {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--slide-muted);
}
.svc-slide-scroll span {
  display: inline-block;
  margin-left: 8px;
  animation: svcHint 1.4s var(--ease) infinite;
}
.svc-slide--last .svc-slide-scroll { visibility: hidden; }

/* Progress rail */
nav.nav-over-stack {
  background: color-mix(in srgb, var(--nav-bg) 70%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}
nav.nav-over-dark {
  --nav-link: var(--cream);
  background: color-mix(in srgb, #0e1b2d 42%, transparent);
  border-bottom-color: rgba(245, 235, 217, 0.14);
}
nav.nav-over-dark .nav-logo-wordmark,
nav.nav-over-dark .nav-logo-monogram,
nav.nav-over-dark .nav-links a,
nav.nav-over-dark .theme-toggle {
  color: var(--cream);
}
nav.nav-over-dark .nav-links a { color: rgba(245, 235, 217, 0.62); }
nav.nav-over-dark .nav-links a:hover,
nav.nav-over-dark .nav-links a[aria-current="page"] { color: var(--cream); }
nav.nav-over-dark .nav-logo-monogram { border-color: var(--cream); }
nav.nav-over-dark .nav-toggle span,
nav.nav-over-dark .nav-toggle span::before,
nav.nav-over-dark .nav-toggle span::after { background: var(--cream); }
nav.nav-over-cinnabar {
  background: color-mix(in srgb, #c0411f 42%, transparent);
}

/* ── Specimens (client-UI, stay Figtree) ── */
.spec {
  background: var(--slide-surface);
  border: 1px solid var(--slide-rule);
  padding: 22px;
}
.spec-kicker {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--slide-muted);
  margin-bottom: 16px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.spec-device {
  display: grid;
  grid-template-columns: 1fr 88px;
  gap: 16px;
  align-items: stretch;
}
.spec-browser {
  background: var(--cream);
  border: 1px solid rgba(14, 27, 45, 0.12);
  min-height: 280px;
  display: flex;
  flex-direction: column;
  color: var(--navy);
}
.spec-browser-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-bottom: 1px solid rgba(14, 27, 45, 0.12);
}
.spec-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: rgba(14, 27, 45, 0.18);
}
.spec-dot:nth-child(3) { background: var(--red); }
.spec-url {
  flex: 1;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(14, 27, 45, 0.4);
  background: #efe4ce;
  padding: 4px 8px;
}
.spec-browser-body { padding: 22px 20px 24px; flex: 1; }
.spec-browser-body .wm {
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -0.04em;
  text-transform: lowercase;
  line-height: 0.95;
}
.spec-browser-body .wm .stop { color: var(--red); }
.spec-browser-body p {
  font-size: 11px;
  line-height: 1.5;
  color: rgba(14, 27, 45, 0.5);
  margin-top: 10px;
  max-width: 28ch;
}
.spec-bars { display: flex; gap: 6px; align-items: flex-end; height: 72px; margin-top: 28px; }
.spec-bars i {
  flex: 1;
  background: var(--navy);
  display: block;
}
.spec-bars i:nth-child(2) { height: 62%; background: var(--camel); }
.spec-bars i:nth-child(3) { height: 84%; background: var(--red); }
.spec-bars i:nth-child(4) { height: 48%; opacity: 0.2; }
.spec-bars i:nth-child(5) { height: 70%; background: var(--camel); }
.spec-phone {
  background: #0e1b2d;
  border-radius: 16px;
  padding: 10px 8px;
  color: var(--cream);
  display: flex;
  flex-direction: column;
}
.spec-phone-notch {
  width: 36px;
  height: 6px;
  background: #1a2740;
  border-radius: 0 0 6px 6px;
  margin: 0 auto 14px;
}
.spec-phone .lbl {
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(245, 235, 217, 0.4);
}
.spec-phone .big {
  font-size: 20px;
  font-weight: 500;
  letter-spacing: -0.03em;
  margin: 8px 0 16px;
}
.spec-phone-row {
  font-size: 9px;
  padding: 8px 0;
  border-top: 1px solid rgba(245, 235, 217, 0.12);
  display: flex;
  justify-content: space-between;
  color: rgba(245, 235, 217, 0.7);
}

.spec-agent {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.spec-agent-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  align-items: center;
  padding: 16px 18px;
  background: rgba(245, 235, 217, 0.04);
  border: 1px solid rgba(245, 235, 217, 0.12);
  color: var(--cream);
}
.spec-agent-row .name {
  font-size: 15px;
  font-weight: 500;
  letter-spacing: -0.02em;
}
.spec-agent-row .meta {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  color: rgba(245, 235, 217, 0.5);
  margin-top: 4px;
}
.spec-agent-row .status {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--camel);
}
.spec-agent-row.is-live .status { color: #e26545; }

.spec-brand {
  background: var(--cream);
  border: 1px solid rgba(245, 235, 217, 0.22);
  padding: 28px 26px;
  color: var(--navy);
}
.spec-brand .wm {
  font-size: clamp(36px, 4vw, 52px);
  font-weight: 500;
  letter-spacing: -0.045em;
  text-transform: lowercase;
  line-height: 0.9;
}
.spec-brand .wm .stop { color: var(--red); }
.spec-brand .voice {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 18px;
  margin-top: 16px;
  max-width: 18ch;
}
.spec-swatches {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-top: 28px;
}
.spec-swatches span {
  aspect-ratio: 1;
  display: flex;
  align-items: flex-end;
  padding: 8px;
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.spec-swatches .cream { background: #f5ebd9; color: var(--navy); border: 1px solid rgba(14, 27, 45, 0.08); }
.spec-swatches .navy { background: #0e1b2d; color: var(--cream); }
.spec-swatches .cinnabar { background: #c0411f; color: var(--cream); }
.spec-swatches .camel { background: #c5a57c; color: var(--navy); }

.spec-audit {
  display: flex;
  flex-direction: column;
}
.spec-audit-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  padding: 14px 0;
  border-top: 1px solid var(--slide-rule);
  align-items: baseline;
}
.spec-audit-row:last-child { border-bottom: 1px solid var(--slide-rule); }
.spec-audit-row .lbl {
  font-size: 15px;
  font-weight: 500;
  letter-spacing: -0.015em;
}
.spec-audit-row .note {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--slide-muted);
  margin-top: 4px;
}
.spec-audit-row .mark {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--slide-muted);
}
.spec-audit-row.is-go .mark { color: var(--red); }

@keyframes svcHint {
  0%, 100% { transform: translateY(0); opacity: 0.5; }
  50% { transform: translateY(4px); opacity: 1; }
}

@media (max-width: 960px) {
  .svc-slide-inner {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 104px var(--pad) 40px;
    align-items: start;
  }
  .spec { display: none; }
  .spec-brand { display: none; }
}

@media (max-width: 768px) {
  .svc-slide { height: auto; min-height: 100dvh; overflow: visible; }
  .svc-slide-inner { padding: 96px var(--pad) 32px; gap: 24px; }
  .svc-slide-name { font-size: clamp(32px, 10vw, 48px); }
  .svc-slide-quote { font-size: 22px; margin-top: 18px; }
  .svc-slide-list li { padding: 10px 0; font-size: 14px; }
}

@media (max-height: 820px) {
  .svc-slide-inner { padding-top: 88px; padding-bottom: 24px; gap: 48px; }
  .svc-slide-name { font-size: clamp(32px, 4.6vw, 60px); }
  .svc-slide-quote { margin-top: 16px; }
  .svc-slide-desc { margin-top: 14px; }
  .svc-slide-tags { margin-top: 18px; }
  .svc-slide-list li { padding: 8px 0; }
  .spec,
  .spec-brand { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .svc-slide { position: relative; height: auto; min-height: auto; overflow: visible; }
  .svc-slide-inner { padding: 72px var(--pad); }
  .svc-slide-scroll span { animation: none; }
}