/* ============================================================
   D³ service pages — shared in-depth layout system
   Loaded alongside styles.css (which supplies nav, btn, footer,
   chat widget, and tokens). This file adds the deep-dive page
   vocabulary: sub-nav, service hero, feature rows, mockups,
   before/after slider, capability grid, steps, cross-sell, CTA.
   ============================================================ */

/* ---------- sub-nav (service switcher under the main nav) ---------- */

.subnav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 49;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.05rem var(--pad-x);
  background: linear-gradient(to bottom, rgba(4, 7, 12, 0.92), rgba(4, 7, 12, 0.55));
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.subnav__home {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  text-decoration: none;
  flex-shrink: 0;
}

.subnav__d3 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.3rem;
  color: var(--blue);
  letter-spacing: -0.02em;
  text-shadow: 0 0 18px rgba(77, 159, 255, 0.55);
}

.subnav__d3 sup { font-size: 0.7em; }

.subnav__links {
  display: flex;
  gap: 0.3rem;
  align-items: center;
  overflow-x: auto;
  scrollbar-width: none;
}

.subnav__links::-webkit-scrollbar { display: none; }

.subnav__link {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--muted);
  padding: 0.5rem 0.85rem;
  border-radius: 999px;
  border: 1px solid transparent;
  white-space: nowrap;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.subnav__link:hover { color: var(--ice); }

.subnav__link.is-current {
  color: var(--blue-glow);
  border-color: rgba(77, 159, 255, 0.4);
  background: rgba(77, 159, 255, 0.08);
}

.subnav__cta {
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  color: #03060b;
  background: linear-gradient(180deg, var(--blue), #2f7fe6);
  border-radius: 999px;
  padding: 0.55rem 1.1rem;
  transition: box-shadow 0.2s ease;
}

.subnav__cta:hover { box-shadow: 0 0 26px rgba(77, 159, 255, 0.45); }

/* ---------- generic page scaffold ---------- */

.svc {
  padding-top: 4.2rem; /* clear the fixed subnav */
}

.wrap {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 var(--pad-x);
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--blue);
  margin: 0 0 1.2rem;
}

/* scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal.is-in {
  opacity: 1;
  transform: none;
}

/* ---------- service hero ---------- */

.shero {
  position: relative;
  overflow: hidden;
  padding: clamp(3.5rem, 8vw, 6rem) 0 clamp(3rem, 7vw, 5rem);
}

.shero::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(60% 50% at 78% 8%, rgba(31, 111, 235, 0.18), transparent 60%),
    radial-gradient(50% 40% at 8% 70%, rgba(0, 162, 255, 0.07), transparent 60%);
  pointer-events: none;
  z-index: -1;
}

.shero__grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}

.shero__index {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 1rem;
}

.shero__index b { color: var(--blue); font-weight: 500; }

.shero__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.6rem, 6vw, 4.6rem);
  line-height: 1;
  letter-spacing: -0.03em;
  margin: 0 0 1.4rem;
}

.shero__title .accent { color: var(--blue); text-shadow: 0 0 38px rgba(77, 159, 255, 0.45); }

.shero__lead {
  font-size: clamp(1.05rem, 1.5vw, 1.25rem);
  color: var(--muted);
  max-width: 34em;
  margin: 0 0 2rem;
}

.shero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.shero__visual {
  position: relative;
  min-height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ---------- band (short full-width statement) ---------- */

.band {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--ink-2);
  padding: clamp(3rem, 7vw, 5rem) 0;
}

.band__big {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.7rem, 3.5vw, 2.8rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0;
  max-width: 22em;
}

.band__big .accent { color: var(--blue); }

/* ---------- feature rows (alternating text + visual) ---------- */

.feature {
  padding: clamp(3.5rem, 8vw, 6rem) 0;
}

.feature__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
}

.feature--flip .feature__text { order: 2; }

.feature__kicker {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--blue);
  margin: 0 0 0.9rem;
}

.feature__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.8rem, 3.4vw, 2.7rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 0 0 1.1rem;
}

.feature__copy {
  color: var(--muted);
  font-size: 1.05rem;
  margin: 0 0 1.4rem;
  max-width: 32em;
}

.checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.7rem;
}

.checklist li {
  position: relative;
  padding-left: 1.7rem;
  color: var(--ice);
}

.checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.42em;
  width: 11px;
  height: 7px;
  border-left: 2px solid var(--blue);
  border-bottom: 2px solid var(--blue);
  transform: rotate(-45deg);
}

/* ---------- mockup: generic frame ---------- */

.mock {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(10, 17, 29, 0.6);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.45), 0 0 50px rgba(20, 80, 184, 0.12);
  overflow: hidden;
}

.mock__glow {
  position: absolute;
  inset: -1px;
  border-radius: 16px;
  pointer-events: none;
  box-shadow: inset 0 0 0 1px rgba(77, 159, 255, 0.18);
}

/* browser chrome */
.browser__bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 0.9rem;
  border-bottom: 1px solid var(--line);
  background: rgba(4, 7, 12, 0.5);
}

.browser__dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: #2a3445;
}

.browser__url {
  margin-left: 0.6rem;
  flex: 1;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--muted);
  background: rgba(4, 7, 12, 0.6);
  border-radius: 999px;
  padding: 0.3rem 0.8rem;
  border: 1px solid var(--line);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.browser__body {
  padding: 1.3rem 1.2rem;
}

/* a tiny faux landing page rendered inside a browser frame */
.faux {
  display: grid;
  gap: 0.8rem;
}

.faux__nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.faux__brand {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.95rem;
  color: var(--ice);
}

.faux__menu {
  display: flex;
  gap: 0.5rem;
}

.faux__menu span {
  width: 30px;
  height: 6px;
  border-radius: 3px;
  background: rgba(231, 238, 248, 0.18);
}

.faux__hero {
  text-align: center;
  padding: 1.2rem 0 0.6rem;
}

.faux__hero b {
  display: block;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.5rem;
  letter-spacing: -0.02em;
  color: var(--ice);
  line-height: 1.05;
}

.faux__hero b .g { color: var(--blue); }

.faux__pill {
  display: inline-block;
  margin-top: 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #03060b;
  background: linear-gradient(180deg, var(--blue), #2f7fe6);
  border-radius: 999px;
  padding: 0.35rem 0.9rem;
}

.faux__cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.6rem;
  margin-top: 0.5rem;
}

.faux__card {
  height: 56px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: linear-gradient(160deg, rgba(77, 159, 255, 0.12), rgba(10, 17, 29, 0.4));
}

/* ---------- mockup: dashboard ---------- */

.dash {
  padding: 1.1rem;
  display: grid;
  gap: 0.85rem;
}

.dash__row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.7rem;
}

.dash__stat {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.8rem 0.9rem;
  background: rgba(4, 7, 12, 0.4);
}

.dash__stat .k {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.dash__stat .v {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.35rem;
  color: var(--ice);
  margin-top: 0.2rem;
}

.dash__stat .v.up { color: #7dffb2; }

.dash__chart {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1rem;
  background: rgba(4, 7, 12, 0.4);
}

.bars {
  display: flex;
  align-items: flex-end;
  gap: 0.5rem;
  height: 120px;
}

.bars span {
  flex: 1;
  border-radius: 6px 6px 0 0;
  background: linear-gradient(180deg, var(--blue), rgba(20, 80, 184, 0.25));
  min-height: 8%;
}

/* ---------- mockup: chat ---------- */

.chat {
  padding: 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.chat__msg {
  max-width: 82%;
  padding: 0.6rem 0.85rem;
  border-radius: 14px;
  font-size: 0.9rem;
  line-height: 1.45;
}

.chat__msg--bot {
  align-self: flex-start;
  background: rgba(231, 238, 248, 0.07);
  border: 1px solid var(--line);
  border-bottom-left-radius: 4px;
  color: var(--ice);
}

.chat__msg--user {
  align-self: flex-end;
  background: linear-gradient(180deg, var(--blue), #2f7fe6);
  color: #03060b;
  border-bottom-right-radius: 4px;
}

.chat__typing {
  align-self: flex-start;
  display: flex;
  gap: 4px;
  padding: 0.7rem 0.9rem;
  background: rgba(231, 238, 248, 0.07);
  border: 1px solid var(--line);
  border-radius: 14px;
  border-bottom-left-radius: 4px;
}

.chat__typing span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--muted);
  animation: chat-pulse 1.2s infinite;
}

.chat__typing span:nth-child(2) { animation-delay: 0.2s; }
.chat__typing span:nth-child(3) { animation-delay: 0.4s; }

@keyframes chat-pulse {
  0%, 60%, 100% { opacity: 0.3; transform: translateY(0); }
  30% { opacity: 1; transform: translateY(-3px); }
}

/* ---------- before / after slider ---------- */

.ba {
  position: relative;
  width: 100%;
  max-width: 480px;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.45);
  user-select: none;
  aspect-ratio: 4 / 3;
}

.ba__pane {
  position: absolute;
  inset: 0;
}

.ba__pane img,
.ba__pane svg {
  width: 100%;
  height: 100%;
  display: block;
}

.ba__after {
  clip-path: inset(0 0 0 var(--split, 50%));
}

.ba__before {
  clip-path: inset(0 calc(100% - var(--split, 50%)) 0 0);
}

.ba__tag {
  position: absolute;
  top: 0.8rem;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  background: rgba(4, 7, 12, 0.8);
  border: 1px solid var(--line);
}

.ba__tag--before { left: 0.8rem; color: #ff9d7d; }
.ba__tag--after { right: 0.8rem; color: #7dffb2; }

.ba__handle {
  position: absolute;
  top: 0;
  bottom: 0;
  left: var(--split, 50%);
  width: 2px;
  background: var(--blue-glow);
  box-shadow: 0 0 18px rgba(124, 192, 255, 0.7);
  transform: translateX(-1px);
  cursor: ew-resize;
}

.ba__grip {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--blue);
  color: #03060b;
  display: grid;
  place-items: center;
  font-size: 0.9rem;
  box-shadow: 0 0 24px rgba(77, 159, 255, 0.6);
}

.ba__range {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  opacity: 0;
  cursor: ew-resize;
}

/* ---------- capability grid ---------- */

.caps {
  padding: clamp(3.5rem, 8vw, 6rem) 0;
  border-top: 1px solid var(--line);
}

.section-head {
  margin-bottom: 2.6rem;
}

.section-head h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.8rem, 4vw, 3rem);
  letter-spacing: -0.02em;
  margin: 0 0 0.6rem;
}

.section-head p {
  color: var(--muted);
  max-width: 40em;
  margin: 0;
  font-size: 1.05rem;
}

.caps__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 1.2rem;
}

.cap {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(10, 17, 29, 0.5);
  padding: 1.5rem 1.4rem;
  transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
}

.cap:hover {
  border-color: rgba(77, 159, 255, 0.45);
  box-shadow: 0 0 34px rgba(20, 80, 184, 0.22);
  transform: translateY(-3px);
}

.cap__icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  background: rgba(77, 159, 255, 0.12);
  border: 1px solid rgba(77, 159, 255, 0.3);
  margin-bottom: 1rem;
}

.cap__icon svg { width: 20px; height: 20px; stroke: var(--blue-glow); fill: none; stroke-width: 1.7; }

.cap h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.15rem;
  margin: 0 0 0.5rem;
}

.cap p {
  color: var(--muted);
  font-size: 0.95rem;
  margin: 0;
}

/* ---------- steps ---------- */

.steps {
  padding: clamp(3.5rem, 8vw, 6rem) 0;
  border-top: 1px solid var(--line);
  background: var(--ink-2);
}

.steps__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  gap: 1.4rem;
  counter-reset: step;
}

.step {
  border-top: 1px solid var(--line);
  padding-top: 1.3rem;
}

.step__n {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--blue);
  letter-spacing: 0.12em;
}

.step h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.25rem;
  margin: 0.5rem 0 0.6rem;
}

.step p {
  color: var(--muted);
  font-size: 0.97rem;
  margin: 0;
}

/* ---------- cross-sell ---------- */

.cross {
  padding: clamp(3.5rem, 8vw, 6rem) 0;
  border-top: 1px solid var(--line);
}

.cross__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  gap: 1.2rem;
}

.cross__card {
  display: block;
  text-decoration: none;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1.5rem 1.4rem;
  background: rgba(10, 17, 29, 0.5);
  transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
}

.cross__card:hover {
  border-color: rgba(77, 159, 255, 0.45);
  box-shadow: 0 0 34px rgba(20, 80, 184, 0.22);
  transform: translateY(-3px);
}

.cross__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--ice);
  margin: 0 0 0.4rem;
}

.cross__desc {
  color: var(--muted);
  font-size: 0.95rem;
  margin: 0 0 0.9rem;
}

.cross__go {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--blue-glow);
}

/* ---------- CTA band ---------- */

.svc-cta {
  position: relative;
  overflow: hidden;
  text-align: center;
  padding: clamp(5rem, 12vw, 9rem) 0;
  background: radial-gradient(70% 80% at 50% 120%, rgba(31, 111, 235, 0.28), transparent 65%), var(--ink);
}

.svc-cta h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.2rem, 6vw, 4.5rem);
  letter-spacing: -0.03em;
  line-height: 1;
  margin: 0 0 1.2rem;
}

.svc-cta p {
  color: var(--muted);
  max-width: 34em;
  margin: 0 auto 2.4rem;
  font-size: clamp(1rem, 1.5vw, 1.2rem);
}

/* ---------- responsive ---------- */

@media (max-width: 860px) {
  .shero__grid,
  .feature__grid {
    grid-template-columns: 1fr;
  }

  .feature--flip .feature__text { order: 0; }

  .shero__visual { min-height: 0; }

  .subnav__cta { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .chat__typing span { animation: none; opacity: 0.6; }
}