/* ===========================================================================
   AI Solutions (Specialisation) — prefix "ais-"
   Visual language: "the solutions foundry" — machined panels, specimen plates
   and dial hardware on the site-wide lavender / navy rhythm. Violet, magenta,
   blue and cyan match the other MADDS specialisation pages.

   Theme tokens (same family as the site):
     navy #080A2B · violet #7B2FF7 · magenta #B217BA · blue #2A7BFF
     · cyan #43D2E0 · lavender #CDBBFF · Afacad.

   Structure (8 interactive sections):
     1 .ais-hero      hero + module cluster     5 .ais-impact  scroll-lit bands
     2 .ais-showroom  hover-preview index       6 .ais-cases   case-file tabs
     3 .ais-anatomy   layer explorer            7 .ais-signals gauge grid
     4 .ais-config    three-dial configurator   8 .ais-brief   composer CTA

   All artwork is CSS/SVG only (the project ships no images for this page).
   =========================================================================== */

:root {
  --ais-navy: #080a2b;
  --ais-navy-2: #0d1238;
  --ais-paper: #f7f6fb;
  --ais-paper-2: #eeebf7;
  --ais-ink: #191c3f;
  --ais-mute: #5b5f83;
  --ais-violet: #7b2ff7;
  --ais-magenta: #b217ba;
  --ais-blue: #2a7bff;
  --ais-cyan: #43d2e0;
  --ais-accent: #7b2ff7;
  --ais-accent-light: #cdbbff;
  --ais-button: linear-gradient(100deg, #7b2ff7, #b51bb5);
  --ais-grad: linear-gradient(92deg, var(--ais-violet), var(--ais-magenta) 45%, var(--ais-cyan));
  --ais-shell: min(88%, 1320px);
  --ais-r: 18px;
  --ais-shadow: 0 24px 60px rgba(25, 28, 63, 0.12);
  --ais-shadow-deep: 0 32px 90px rgba(8, 10, 43, 0.45);
  --ais-hairline: 1px solid rgba(25, 28, 63, 0.14);
}

.ais {
  font-family: "Afacad", sans-serif;
  overflow-x: clip;
}

.ais-shell {
  width: var(--ais-shell);
  margin-inline: auto;
  position: relative;
  z-index: 2;
}

/* Accent text adapts to the surface; brand fills stay saturated violet. */
.ais-hero,
.ais-anatomy,
.ais-impact,
.ais-blueprint,
.ais-brief__card,
.ais-specimen__plate {
  --ais-accent: var(--ais-accent-light);
}

.ais :is(a, button):focus-visible {
  outline: 3px solid var(--ais-cyan);
  outline-offset: 4px;
}

.ais-hero__copy { min-width: 0; }

/* ---------- shared type -------------------------------------------------- */

.ais-h1 {
  font-size: clamp(2.5rem, 5.6vw, 4.5rem);
  line-height: 1.05;
  font-weight: 700;
  letter-spacing: -0.015em;
  margin: 0.45em 0 0;
}

.ais-h1 > span {
  display: block;
}

.ais-h2 {
  font-size: clamp(1.9rem, 3.6vw, 3rem);
  line-height: 1.1;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0.35em 0 0;
  color: var(--ais-ink);
}

.ais-grad {
  background: var(--ais-grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.ais-lead {
  font-size: clamp(1.05rem, 1.5vw, 1.28rem);
  line-height: 1.65;
  max-width: 33em;
  margin: 1.3em 0 0;
  color: rgba(255, 255, 255, 0.82);
}

.ais-sub {
  font-size: 1.08rem;
  line-height: 1.6;
  max-width: 38em;
  margin: 0.9em 0 0;
  color: var(--ais-mute);
}

.ais-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.55em;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--ais-accent);
  margin: 0;
}

.ais-kicker::before {
  content: "";
  width: 30px;
  height: 2px;
  border-radius: 2px;
  background: var(--ais-grad);
}

.ais-head {
  max-width: 760px;
  margin-bottom: clamp(2.2rem, 4.5vw, 3.6rem);
}

.ais-head--light .ais-h2 {
  color: #fff;
}

.ais-head--light .ais-sub {
  color: rgba(255, 255, 255, 0.72);
}

.ais-head--light .ais-kicker {
  color: var(--ais-cyan);
}

.ais-crumb {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.55);
  margin: 0;
}

.ais-crumb a {
  color: rgba(255, 255, 255, 0.75);
}

.ais-crumb a:hover {
  color: var(--ais-cyan);
}

.ais-crumb i {
  margin: 0 0.5em;
  font-style: normal;
  opacity: 0.5;
}

.ais-crumb b {
  color: #fff;
  font-weight: 600;
}

/* ---------- buttons ------------------------------------------------------ */

.ais-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.55em;
  padding: 0.85em 1.7em;
  border-radius: 999px;
  font-family: inherit;
  font-size: 1.02rem;
  font-weight: 700;
  /* border: 1.5px solid transparent; */
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background-color 0.25s ease, border-color 0.25s ease, color 0.25s ease;
  will-change: transform;
}

.ais-btn--fill {
  background: var(--ais-button);
  color: #fff;
  box-shadow: 0 8px 24px rgba(123, 47, 247, 0.24);
}

.ais-btn--fill:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(123, 47, 247, 0.30);
}

.ais-btn--ghost {
  border-color: rgba(255, 255, 255, 0.4);
  color: #fff;
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.ais-btn--ghost:hover {
  border-color: #fff;
  background: rgba(255, 255, 255, 0.13);
  transform: translateY(-2px);
}

.ais-btn--mini {
  padding: 0.55em 1.25em;
  font-size: 0.9rem;
  border-radius: 11px;
  background: var(--ais-navy);
  color: #fff;
}

.ais-btn--mini:hover {
  background: var(--ais-violet);
  color: #fff;
  transform: translateY(-1px);
}

.ais-btn--wide {
  width: 100%;
  justify-content: center;
}

.ais-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 1.9rem;
}

.ais-actions--center {
  justify-content: center;
}

/* ---------- hairline seam between sections ------------------------------- */

.ais-thread {
  position: absolute;
  inset: auto 0 0 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(123, 47, 247, 0.4) 18%, rgba(67, 210, 224, 0.4) 82%, transparent);
  z-index: 3;
}

.ais-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
}

.ais-tags li {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 0.45em 1em;
  border-radius: 8px;
  color: var(--ais-violet);
  background: rgba(123, 47, 247, 0.09);
  border: 1px solid rgba(123, 47, 247, 0.18);
}

/* ===========================================================================
   1 · HERO + MODULE CLUSTER
   =========================================================================== */

.ais-hero {
  position: relative;
  isolation: isolate;
  background:
    radial-gradient(1100px 560px at 85% -10%, rgba(123, 47, 247, 0.16), transparent 60%),
    radial-gradient(900px 520px at -10% 115%, rgba(67, 210, 224, 0.16), transparent 60%),
    linear-gradient(180deg, var(--ais-navy), var(--ais-navy-2));
  padding: clamp(7.5rem, 12vh, 10rem) 0 clamp(4.5rem, 8vw, 7rem);
  overflow: hidden;
}

/* Decorative layers never intercept taps or move the hero's content. */
.ais-hero__ambient {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.ais-aurora {
  position: absolute;
  display: block;
  width: min(82vw, 1000px);
  aspect-ratio: 1;
  border-radius: 50%;
  pointer-events: none;
  will-change: transform;
}

.ais-aurora--violet {
  top: -40%;
  right: -15%;
  background: radial-gradient(circle, rgba(123, 47, 247, 0.3), rgba(123, 47, 247, 0.08) 42%, transparent 69%);
  animation: ais-aurora-violet 17s ease-in-out infinite alternate;
}

.ais-aurora--cyan {
  bottom: -52%;
  left: -24%;
  background: radial-gradient(circle, rgba(67, 210, 224, 0.19), rgba(42, 123, 255, 0.08) 40%, transparent 69%);
  animation: ais-aurora-cyan 22s ease-in-out infinite alternate;
}

.ais-aurora--magenta {
  top: 4%;
  left: 14%;
  width: min(65vw, 760px);
  background: radial-gradient(circle, rgba(181, 27, 181, 0.12), transparent 66%);
  animation: ais-aurora-magenta 19s ease-in-out infinite alternate;
}

@keyframes ais-aurora-violet {
  from { transform: translate3d(-5%, 4%, 0) scale(0.94); }
  to { transform: translate3d(8%, 18%, 0) scale(1.1); }
}

@keyframes ais-aurora-cyan {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to { transform: translate3d(22%, -18%, 0) scale(1.12); }
}

@keyframes ais-aurora-magenta {
  from { transform: translate3d(8%, -6%, 0); opacity: 0.55; }
  to { transform: translate3d(-12%, 14%, 0); opacity: 0.95; }
}

/* Quiet moving texture, confined to the background behind both columns. */
.ais-hero__plate {
  position: absolute;
  inset: -120px;
  pointer-events: none;
  z-index: 0;
  animation: ais-plate-drift 32s linear infinite;
  background-image:
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.018) 0 1px, transparent 1px 7px),
    radial-gradient(circle at 24px 24px, rgba(255, 255, 255, 0.1) 1.5px, transparent 2px);
  background-size: auto, 120px 120px;
  mask-image: radial-gradient(ellipse 95% 85% at 50% 25%, #000 25%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 95% 85% at 50% 25%, #000 25%, transparent 80%);
}

@keyframes ais-plate-drift {
  from { transform: translate3d(0, 0, 0); }
  to { transform: translate3d(120px, 0, 0); }
}

.ais-hero__in {
  /* Match the shared hero grid without widening the lower sections. */
  width: var(--site-width, 88%);
  max-width: none;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
}

/* Keep long labels inside the shared gutters when text is enlarged. */
.ais-hero__in > * { min-width: 0; }
.ais-hero__copy .ais-eyebrow,
.ais-hero__copy .ais-btn { max-width: 100%; overflow-wrap: anywhere; }

.ais-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  margin: 1.4rem 0 0;
  padding: 0.5em 1.1em;
  border-radius: 10px;
  border: 1px solid rgba(123, 47, 247, 0.4);
  background: rgba(123, 47, 247, 0.1);
  color: var(--ais-accent);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.ais-eyebrow__tick {
  width: 8px;
  height: 8px;
  background: var(--ais-accent);
  clip-path: polygon(0 0, 100% 50%, 0 100%);
  animation: ais-blink 2.2s ease-in-out infinite;
}

@keyframes ais-blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

.ais-rise {
  opacity: 0;
  transform: translateY(0.55em);
  animation: ais-rise 0.85s cubic-bezier(0.2, 0.7, 0.2, 1) forwards;
}

.ais-rise:nth-child(2) { animation-delay: 0.12s; }
.ais-rise:nth-child(3) { animation-delay: 0.24s; }

@keyframes ais-rise {
  to { opacity: 1; transform: none; }
}

/* One-time copy reveals; continuous motion is limited to accents. */
.ais-hero__copy > .ais-crumb,
.ais-hero__copy > .ais-eyebrow,
.ais-hero__copy > .ais-lead,
.ais-hero__copy > .ais-actions,
.ais-hero__copy > .ais-stats {
  animation: ais-copy-in 0.8s cubic-bezier(0.2, 0.7, 0.2, 1) both;
}

.ais-hero__copy > .ais-eyebrow { animation-delay: 0.1s; }
.ais-hero__copy > .ais-lead { animation-delay: 0.32s; }
.ais-hero__copy > .ais-actions { animation-delay: 0.46s; }
.ais-hero__copy > .ais-stats { animation-delay: 0.58s; }

.ais-hero .ais-h1 .ais-grad {
  background-size: 230% 100%;
  animation: ais-hero-gradient 8s ease-in-out infinite;
}

.ais-hero .ais-actions .ais-btn--fill > span[aria-hidden] {
  display: inline-block;
  animation: ais-arrow-nudge 3s ease-in-out infinite;
}

@keyframes ais-copy-in {
  from { opacity: 0; transform: translate3d(0, 14px, 0); }
  to { opacity: 1; transform: translate3d(0, 0, 0); }
}

@keyframes ais-hero-gradient {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

@keyframes ais-arrow-nudge {
  0%, 65%, 100% { transform: translateY(0); }
  78% { transform: translateY(3px); }
  90% { transform: translateY(-1px); }
}

/* No JavaScript means a static, readable hero rather than unpausable motion. */
.ais-hero .ais-aurora,
.ais-hero .ais-hero__plate,
.ais-hero .ais-eyebrow__tick,
.ais-hero .ais-h1 .ais-grad,
.ais-hero .ais-actions .ais-btn--fill > span[aria-hidden] {
  animation-play-state: paused;
}

.ais-hero[data-motion="running"] .ais-aurora,
.ais-hero[data-motion="running"] .ais-hero__plate,
.ais-hero[data-motion="running"] .ais-eyebrow__tick,
.ais-hero[data-motion="running"] .ais-h1 .ais-grad,
.ais-hero[data-motion="running"] .ais-actions .ais-btn--fill > span[aria-hidden] {
  animation-play-state: running;
}

.ais-stats {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(1.4rem, 3vw, 2.8rem);
  margin: 2.4rem 0 0;
  padding-top: 1.6rem;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.ais-stat dt {
  font-size: clamp(1.7rem, 2.6vw, 2.3rem);
  font-weight: 700;
  background: var(--ais-grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.ais-stat dd {
  margin: 0.15em 0 0;
  font-size: 0.92rem;
  color: rgba(255, 255, 255, 0.62);
}

/* ---- module cluster ----------------------------------------------------
   All content is in normal grid flow: no pixel offsets, negative margins or
   pointer translations. Cards cannot collide with the core or the caption.
   ----------------------------------------------------------------------- */
.ais-cluster {
  position: relative;
  isolation: isolate;
  min-width: 0;
  width: 100%;
  border-radius: 24px;
  border: 1px solid rgba(205, 187, 255, 0.19);
  padding: clamp(1rem, 2vw, 1.6rem);
  background:
    radial-gradient(ellipse at 50% 40%, rgba(123, 47, 247, 0.13), transparent 70%),
    #11132f;
}

.ais-cluster__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(205, 187, 255, 0.12);
}

.ais-cluster__eyebrow {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #cdbbff;
}

.ais-cluster__hint {
  font-size: 0.78rem;
  color: #b5b7d3;
}

.ais-cluster__stage {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.12fr) minmax(0, 1fr);
  grid-template-areas:
    ". trust ."
    "vision core language"
    "forecasting . automation";
  grid-template-rows: auto minmax(9rem, auto) auto;
  align-items: center;
  gap: 0.8rem;
  padding-block: 1.25rem;
  min-width: 0;
}

.ais-cluster__core {
  grid-area: core;
  min-width: 0;
  align-self: stretch;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 1.2rem 0.65rem;
  border-radius: 20px;
  background: linear-gradient(145deg, #352460, #1c2148);
  border: 1px solid rgba(176, 143, 248, 0.6);
  box-shadow: 0 8px 24px rgba(8, 10, 43, 0.15);
  text-align: center;
}

.ais-cluster__ico {
  width: 34px;
  height: 34px;
  flex: 0 0 auto;
  color: #cdbbff;
}

.ais-cluster__core strong {
  max-width: 100%;
  overflow-wrap: anywhere;
  color: #fff;
  font-size: 1rem;
  line-height: 1.25;
}

.ais-cluster__core small {
  max-width: 100%;
  overflow-wrap: anywhere;
  color: #c6c5df;
  font-size: 0.78rem;
  line-height: 1.4;
}

.ais-mod {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-width: 0;
  min-height: 4.8rem;
  width: 100%;
  padding: 0.75rem 0.4rem;
  border-radius: 14px;
  border: 1px solid rgba(205, 187, 255, 0.22);
  background: #191b3a;
  color: #e4e3f2;
  font-family: inherit;
  font-size: 0.88rem;
  font-weight: 600;
  line-height: 1.3;
  text-align: center;
  overflow-wrap: anywhere;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: border-color 0.2s ease, background-color 0.2s ease, color 0.2s ease;
}

.ais-mod--vision { grid-area: vision; }
.ais-mod--language { grid-area: language; }
.ais-mod--forecasting { grid-area: forecasting; }
.ais-mod--automation { grid-area: automation; }
.ais-mod--trust { grid-area: trust; }

.ais-mod span {
  min-width: 0;
  max-width: 100%;
  overflow-wrap: anywhere;
}

.ais-mod svg {
  width: 21px;
  height: 21px;
  flex: 0 0 auto;
  color: var(--ais-cyan);
}

.ais-mod:hover {
  border-color: #a78bed;
  background: #252248;
  color: #fff;
}

.ais-mod.is-on,
.ais-mod[aria-pressed="true"] {
  border-color: #b094f4;
  background: #35245d;
  color: #fff;
}

.ais-mod.is-on svg { color: #d9c9ff; }

/* Active cue is inset: selecting a card never changes its size or position. */
.ais-mod::after {
  content: "";
  position: absolute;
  top: 0.55rem;
  right: 0.55rem;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #cdbbff;
  opacity: 0;
  transition: opacity 0.28s ease;
}

.ais-mod.is-on::after { opacity: 1; }

.ais-mod:focus-visible {
  outline: 3px solid var(--ais-cyan);
  outline-offset: 3px;
}

.ais-cluster__details {
  min-width: 0;
  padding-top: 1.1rem;
  border-top: 1px solid rgba(205, 187, 255, 0.16);
}

/* Hidden name measurements reserve the longest title at enlarged text sizes. */
.ais-cluster__title { display: grid; min-width: 0; }
.ais-cluster__title > .ais-cluster__name { grid-area: 1 / 1; min-width: 0; overflow-wrap: break-word; }
.ais-cluster__name--measure { visibility: hidden; pointer-events: none; user-select: none; }

.ais-cluster__name {
  margin: 0 0 0.4rem;
  font-size: 0.92rem;
  font-weight: 700;
  line-height: 1.35;
  color: #e2d6ff;
}

/* Invisible notes still size the grid. The longest description reserves the
   space once, so switching modules never moves the panel or nearby content. */
.ais-cluster__notes { display: grid; min-width: 0; }

.ais-cluster__note {
  grid-area: 1 / 1;
  margin: 0;
  min-width: 0;
  font-size: 0.92rem;
  line-height: 1.6;
  color: #c4c5dd;
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
  overflow-wrap: break-word;
}

.ais-cluster__note.is-on {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
  animation: ais-note-in 0.38s ease-out;
}

@keyframes ais-note-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* A single controller drives both the loop and its progress indicators. */
.ais-cluster__playback {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.85rem 0.7rem;
  margin-top: 1.05rem;
  padding-top: 0.85rem;
  border-top: 1px solid rgba(205, 187, 255, 0.12);
}

.ais-cluster__playback[hidden] { display: none; }

.ais-cluster__playback-info {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  min-width: 0;
  gap: 0.35rem 0.85rem;
  color: #c4c5dd;
  font-size: 0.78rem;
  line-height: 1.4;
}

.ais-cluster__state { display: inline-flex; align-items: center; gap: 0.45rem; }
.ais-cluster__status-dot { width: 5px; height: 5px; flex: 0 0 5px; border-radius: 50%; background: #8f91af; }
.ais-cluster[data-cycle-running="true"] .ais-cluster__status-dot { background: #43d2e0; }
.ais-cluster__count { font-variant-numeric: tabular-nums; white-space: nowrap; color: #d2c1ff; }

.ais-hero__motion {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  gap: 0.4rem;
  padding: 0.45rem 0.8rem;
  border: 1px solid rgba(205, 187, 255, 0.25);
  border-radius: 999px;
  background: #1c1d3e;
  color: #e4dcff;
  font-family: inherit;
  font-size: 0.8rem;
  line-height: 1.2;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.ais-hero__motion:hover { background: #30234f; border-color: #a78bed; }
.ais-hero__motion svg { flex: 0 0 16px; }
.ais-hero__play-icon { display: none; }
.ais-hero__motion[data-paused="true"] .ais-hero__pause-icon { display: none; }
.ais-hero__motion[data-paused="true"] .ais-hero__play-icon { display: block; }

.ais-cluster__progress {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0.4rem;
}

.ais-cluster__progress > span {
  display: block;
  height: 3px;
  border-radius: 999px;
  overflow: hidden;
  background: #2e2c4c;
}

.ais-cluster__progress i {
  display: block;
  width: 100%;
  height: 100%;
  background: #b69af5;
  transform: scaleX(0);
  transform-origin: left center;
}

.ais-cluster__progress .is-complete i { transform: scaleX(1); background: #65518f; }
.ais-cluster__progress .is-current i {
  animation: ais-module-progress var(--ais-cycle-time, 3000ms) linear both;
  animation-play-state: paused;
}
.ais-cluster[data-cycle-running="true"] .ais-cluster__progress .is-current i { animation-play-state: running; }

@keyframes ais-module-progress {
  from { transform: scaleX(0); }
  to { transform: scaleX(1); }
}

.ais-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ===========================================================================
   2 · SOLUTION SHOWROOM (hover-preview index)
   =========================================================================== */

.ais-showroom {
  position: relative;
  background: var(--ais-paper);
  padding: clamp(4rem, 8vw, 7rem) 0;
}

.ais-index {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: start;
}

.ais-index__list {
  display: grid;
  gap: 0.55rem;
}

.ais-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 1.1rem;
  width: 100%;
  padding: 1.05rem 1.35rem;
  border-radius: 14px;
  border: 1px solid rgba(25, 28, 63, 0.1);
  background: #fff;
  font-family: inherit;
  text-align: left;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.2, 0.7, 0.2, 1);
}

.ais-row__num {
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--ais-accent);
}

.ais-row__name {
  font-size: clamp(1.02rem, 1.6vw, 1.22rem);
  font-weight: 700;
  color: var(--ais-ink);
}

.ais-row__arrow {
  opacity: 0;
  transform: translateX(-8px);
  color: var(--ais-accent);
  font-size: 1.15rem;
  transition: all 0.3s ease;
}

.ais-row:hover {
  transform: translateX(6px);
  border-color: rgba(123, 47, 247, 0.5);
  box-shadow: var(--ais-shadow);
}

.ais-row:hover .ais-row__arrow {
  opacity: 1;
  transform: none;
}

.ais-row.is-on {
  background: linear-gradient(120deg, var(--ais-navy), var(--ais-navy-2));
  border-color: transparent;
  box-shadow: var(--ais-shadow-deep);
}

.ais-row.is-on .ais-row__name {
  color: #fff;
}

.ais-row.is-on .ais-row__num {
  color: var(--ais-cyan);
}

.ais-row.is-on .ais-row__arrow {
  opacity: 1;
  transform: none;
  color: var(--ais-cyan);
}

/* specimen plate */

.ais-specimen {
  position: sticky;
  top: 100px;
  padding: 1.7rem;
  border-radius: var(--ais-r);
  border: 1px solid rgba(25, 28, 63, 0.12);
  background: #fff;
  box-shadow: var(--ais-shadow);
}

.ais-specimen__plate {
  position: relative;
  display: grid;
  place-items: center;
  aspect-ratio: 16 / 9;
  border-radius: 12px;
  background:
    radial-gradient(320px 220px at 30% 25%, rgba(67, 210, 224, 0.25), transparent 65%),
    radial-gradient(320px 220px at 75% 80%, rgba(123, 47, 247, 0.22), transparent 65%),
    linear-gradient(150deg, var(--ais-navy), var(--ais-navy-2));
  overflow: hidden;
  margin-bottom: 1.15rem;
}

.ais-specimen__ring {
  position: absolute;
  width: 58%;
  aspect-ratio: 1;
  border-radius: 50%;
  border: 1.5px dashed rgba(255, 255, 255, 0.3);
  animation: ais-spin 26s linear infinite;
}

@keyframes ais-spin {
  to { transform: rotate(360deg); }
}

.ais-specimen__ico {
  width: 68px;
  height: 68px;
  color: var(--ais-accent);
  filter: drop-shadow(0 10px 24px rgba(123, 47, 247, 0.45));
}

.ais-specimen.is-swap .ais-specimen__plate {
  animation: ais-plate 0.5s cubic-bezier(0.2, 0.7, 0.2, 1);
}

@keyframes ais-plate {
  from { opacity: 0; transform: scale(0.96) translateY(8px); }
  to { opacity: 1; transform: none; }
}

.ais-specimen__tag {
  margin: 0;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ais-accent);
}

.ais-specimen__title {
  margin: 0.35rem 0 0;
  font-size: 1.35rem;
  color: var(--ais-ink);
}

.ais-specimen__body {
  margin: 0.65rem 0 0;
  line-height: 1.65;
  color: var(--ais-mute);
}

.ais-specimen__facts {
  display: flex;
  gap: 1.4rem;
  margin: 1.15rem 0 1.25rem;
  padding: 0.95rem 0;
  border-top: 1px dashed rgba(25, 28, 63, 0.16);
  border-bottom: 1px dashed rgba(25, 28, 63, 0.16);
  list-style: none;
}

.ais-specimen__facts li {
  display: grid;
  gap: 0.1rem;
}

.ais-specimen__facts b {
  font-size: 1.45rem;
  color: var(--ais-ink);
}

.ais-specimen__facts span {
  font-size: 0.8rem;
  color: var(--ais-mute);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ===========================================================================
   3 - SOLUTION ANATOMY
   Labels, icons and connectors live in the same responsive layout. No
   detached SVG overlay, percentage coordinates or fixed content heights.
   =========================================================================== */

.ais-anatomy {
  background:
    radial-gradient(900px 500px at 88% 0%, rgba(67, 210, 224, 0.08), transparent 60%),
    radial-gradient(800px 460px at 4% 100%, rgba(123, 47, 247, 0.1), transparent 60%),
    linear-gradient(180deg, var(--ais-navy), var(--ais-navy-2));
  padding: clamp(4rem, 8vw, 7rem) 0;
}

.ais-anatomy *,
.ais-anatomy *::before,
.ais-anatomy *::after { box-sizing: border-box; }

.ais-anatomy__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(1.25rem, 3vw, 2rem);
  align-items: stretch;
}

.ais-schematic,
.ais-callout {
  min-width: 0;
  border: 1px solid rgba(205, 187, 255, 0.16);
  border-radius: 22px;
  box-shadow: none;
}

.ais-schematic {
  --ais-layer-gap: 1.125rem;
  container-type: inline-size;
  container-name: ais-anatomy-stack;
  position: relative;
  padding: clamp(1.125rem, 2.2vw, 1.75rem);
  background:
    linear-gradient(rgba(205, 187, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(205, 187, 255, 0.025) 1px, transparent 1px),
    #10132f;
  background-size: 24px 24px, 24px 24px, auto;
}

.ais-schematic__heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.65rem 1rem;
  margin: 0 0 1.25rem;
}

.ais-schematic__heading p {
  margin: 0;
  color: #d2c9ed;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.13em;
  line-height: 1.6;
  text-transform: uppercase;
}

.ais-schematic__count {
  color: #b8b9d1;
  background: #1b1e3d;
  border-radius: 6px;
  padding: 0.25rem 0.55rem;
  font-size: 0.75rem;
  line-height: 1.4;
  white-space: nowrap;
}

.ais-anatomy__layers {
  display: grid;
  gap: var(--ais-layer-gap);
  min-width: 0;
}

.ais-anatomy .ais-layer {
  position: relative;
  display: grid;
  grid-template-columns: 2.5rem minmax(0, 1fr) 1.25rem;
  align-items: center;
  gap: 0.85rem;
  width: 100%;
  min-width: 0;
  padding: 1rem 1.125rem;
  margin: 0;
  border: 1px solid #363451;
  border-radius: 14px;
  background: #171a37;
  color: #f4f1ff;
  font: inherit;
  text-align: left;
  text-decoration: none;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: background-color 180ms ease, border-color 180ms ease;
}

/* Only the gaps contain connector segments. They meet the exact bottom/top
   border centres of the rows; text growth never detaches their endpoints. */
.ais-anatomy .ais-layer:not(:last-child)::after {
  content: "";
  position: absolute;
  top: calc(100% + 1px);
  left: 50%;
  width: 2px;
  height: var(--ais-layer-gap);
  transform: translateX(-50%);
  background: #635182;
  pointer-events: none;
}

.ais-anatomy .ais-layer.is-on::after { background: #a78ce4; }

@media (hover: hover) {
  .ais-anatomy .ais-layer:hover {
    border-color: #786296;
    background: #20213f;
  }
}

.ais-anatomy .ais-layer.is-on {
  border-color: #a88ae8;
  background: #282143;
}

.ais-anatomy .ais-layer:focus-visible {
  outline: 3px solid var(--ais-cyan);
  outline-offset: 4px;
}

.ais-layer__icon {
  width: 2.5rem;
  height: 2.5rem;
  display: grid;
  place-items: center;
  border: 1px solid rgba(205, 187, 255, 0.14);
  border-radius: 10px;
  background: #25213f;
  color: #cdbbff;
}

.ais-layer.is-on .ais-layer__icon {
  background: #6942a8;
  border-color: transparent;
  color: #fff;
}

.ais-layer__icon svg { width: 1.375rem; height: 1.375rem; }
.ais-layer__copy { display: grid; gap: 0.2rem; min-width: 0; }
.ais-layer__copy > span { overflow-wrap: anywhere; }

.ais-layer__number {
  color: #beb2d6;
  font-size: 0.65rem;
  line-height: 1.4;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.ais-layer__title {
  font-size: 1.125rem;
  line-height: 1.25;
  font-weight: 600;
  color: #f7f4ff;
}

.ais-layer__summary {
  font-size: 0.8rem;
  line-height: 1.5;
  color: #b9b9d2;
}

.ais-layer__arrow { display: flex; color: #9f96bc; }
.ais-layer__arrow svg { width: 1.25rem; height: 1.25rem; }
.ais-layer.is-on .ais-layer__arrow { color: #d3baff; }

.ais-schematic__hint {
  margin: 1.1rem 0 0;
  color: #b3b5ce;
  font-size: 0.8rem;
  line-height: 1.6;
  text-align: center;
}

.ais-anatomy .ais-callout {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(1.5rem, 3vw, 2.5rem);
  background: #141733;
}

.ais-callout__panels {
  display: grid;
  gap: 2rem;
  margin-block: auto;
  min-width: 0;
}

/* Progressive enhancement: without JS each description remains in normal
   document flow and the four architecture links navigate to it. */
.ais-anatomy .ais-layer-panel {
  min-width: 0;
  padding: 0;
  margin: 0;
  background: none;
  border: 0;
  scroll-margin-top: calc(var(--hdr-compact, 80px) + 1.5rem);
}

.ais-anatomy.is-enhanced .ais-callout__panels { gap: 0; }
.ais-anatomy.is-enhanced .ais-layer-panel {
  grid-area: 1 / 1;
  visibility: hidden;
  pointer-events: none;
}

.ais-anatomy.is-enhanced .ais-layer-panel.is-on {
  visibility: visible;
  pointer-events: auto;
}

.ais-layer-panel.is-entering {
  animation: ais-layer-reveal 220ms ease-out both;
}

@keyframes ais-layer-reveal {
  from { opacity: 0; transform: translateY(5px); }
  to { opacity: 1; transform: translateY(0); }
}

.ais-layer-panel__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.ais-callout__idx {
  margin: 0;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  line-height: 1.6;
  text-transform: uppercase;
  color: #cdbbff;
}

.ais-callout__idx span { color: #9498b6; margin-left: 0.35rem; }

.ais-layer-panel__icon {
  display: grid;
  place-items: center;
  width: 2.75rem;
  height: 2.75rem;
  flex-shrink: 0;
  background: #272143;
  border-radius: 12px;
  color: #cdbbff;
}

.ais-layer-panel__icon svg { width: 1.5rem; height: 1.5rem; }

.ais-anatomy .ais-callout__title {
  margin: 1.25rem 0 0;
  font-size: clamp(1.5rem, 2.4vw, 2rem);
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: #f8f6ff;
  overflow-wrap: anywhere;
}

.ais-callout__body {
  margin: 1rem 0 0;
  font-size: 1.0625rem;
  line-height: 1.75;
  color: #c4c6dd;
  overflow-wrap: anywhere;
}

.ais-layer-panel__included {
  margin-top: 1.75rem;
  padding-top: 1.25rem;
  border-top: 1px solid rgba(205, 187, 255, 0.13);
}

.ais-layer-panel__label {
  margin: 0 0 0.75rem;
  font-size: 0.75rem;
  color: #a9accb;
  line-height: 1.5;
}

.ais-anatomy .ais-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.ais-anatomy .ais-tags li {
  max-width: 100%;
  padding: 0.4rem 0.65rem;
  border: 1px solid #3c345a;
  border-radius: 7px;
  background: #24203e;
  color: #d5c7f6;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0;
  line-height: 1.5;
  text-transform: none;
  white-space: normal;
  overflow-wrap: anywhere;
}

.ais-callout__footer {
  display: flex;
  align-items: flex-start;
  gap: 0.55rem;
  margin: 2rem 0 0;
  padding-top: 1.1rem;
  border-top: 1px solid rgba(205, 187, 255, 0.13);
  color: #aeb1cb;
  font-size: 0.8rem;
  line-height: 1.6;
}

.ais-callout__footer > span {
  width: 0.4rem;
  height: 0.4rem;
  margin-top: 0.45rem;
  flex: 0 0 auto;
  background: #b69be9;
  border-radius: 50%;
}

@media (max-width: 900px) {
  .ais-anatomy__grid { grid-template-columns: minmax(0, 1fr); }
  .ais-callout__panels { margin-block: 0; }
}

@media (max-width: 480px) {
  .ais-schematic { padding: 16px; --ais-layer-gap: 0.875rem; }
  .ais-anatomy .ais-layer {
    grid-template-columns: 2.25rem minmax(0, 1fr) 1rem;
    gap: 0.65rem;
    padding: 14px 12px;
  }
  .ais-layer__icon { width: 2.25rem; height: 2.25rem; }
  .ais-layer__arrow svg { width: 1rem; height: 1rem; }
  .ais-layer__title { font-size: 1rem; }
  .ais-layer__summary { font-size: 0.8rem; }
  .ais-anatomy .ais-callout { padding: 20px; }
  .ais-callout__body { font-size: 1rem; line-height: 1.7; }
}

/* The breakpoint scales with the root text size. When a column is too
   narrow for icon + text, the copy takes a full row instead of breaking
   into individual letters. No font-size cap or clipped text is used. */
@container ais-anatomy-stack (max-width: 18rem) {
  .ais-anatomy .ais-layer {
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-areas: "icon arrow" "copy copy";
    row-gap: 0.75rem;
  }
  .ais-layer__icon { grid-area: icon; }
  .ais-layer__copy { grid-area: copy; }
  .ais-layer__arrow { grid-area: arrow; justify-self: end; }
}

@supports not (container-type: inline-size) {
  @media (max-width: 640px) {
    .ais-anatomy .ais-layer {
      grid-template-columns: minmax(0, 1fr) auto;
      grid-template-areas: "icon arrow" "copy copy";
    }
    .ais-layer__icon { grid-area: icon; }
    .ais-layer__copy { grid-area: copy; }
    .ais-layer__arrow { grid-area: arrow; justify-self: end; }
  }
}

@media (prefers-reduced-motion: reduce) {
  .ais-anatomy .ais-layer,
  .ais-anatomy .ais-layer-panel { animation: none !important; transition: none !important; }
}

@media (forced-colors: active) {
  .ais-anatomy .ais-layer { border-color: ButtonText; }
  .ais-anatomy .ais-layer.is-on { outline: 2px solid Highlight; outline-offset: -3px; }
}

/* Kept for the other page sections that use the shared content swap. */
@keyframes ais-swap {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: none; }
}

/* ===========================================================================
   4 · SOLUTION CONFIGURATOR
   =========================================================================== */

.ais-config {
  background: var(--ais-paper);
  padding: clamp(4rem, 8vw, 7rem) 0;
}

.ais-config__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: stretch;
}

.ais-dials {
  display: grid;
  gap: 1.5rem;
  align-content: center;
  padding: clamp(1.5rem, 3vw, 2.2rem);
  border-radius: var(--ais-r);
  border: var(--ais-hairline);
  background:
    repeating-linear-gradient(0deg, rgba(25, 28, 63, 0.03) 0 1px, transparent 1px 24px),
    #fff;
  box-shadow: var(--ais-shadow);
}

.ais-dial {
  border: none;
  margin: 0;
  padding: 0;
}

.ais-dial legend {
  padding: 0;
  margin-bottom: 0.75rem;
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--ais-ink);
}

.ais-seg {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.ais-seg button {
  font-family: inherit;
  font-size: 0.94rem;
  font-weight: 700;
  padding: 0.62em 1.25em;
  border-radius: 11px;
  border: 1.5px solid rgba(25, 28, 63, 0.16);
  background: var(--ais-paper);
  color: var(--ais-mute);
  cursor: pointer;
  transition: all 0.25s ease;
}

.ais-seg button:hover {
  border-color: var(--ais-accent);
  color: var(--ais-ink);
  transform: translateY(-1px);
}

.ais-seg button.is-on {
  background: var(--ais-navy);
  border-color: var(--ais-navy);
  color: #fff;
  box-shadow: 0 12px 28px rgba(8, 10, 43, 0.25);
}

/* blueprint card */

.ais-blueprint {
  border-radius: var(--ais-r);
  border: 1.5px solid rgba(25, 28, 63, 0.2);
  background:
    repeating-linear-gradient(0deg, rgba(67, 210, 224, 0.07) 0 1px, transparent 1px 20px),
    repeating-linear-gradient(90deg, rgba(67, 210, 224, 0.07) 0 1px, transparent 1px 20px),
    linear-gradient(165deg, var(--ais-navy), var(--ais-navy-2));
  box-shadow: var(--ais-shadow-deep);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.ais-blueprint__bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.85em 1.25em;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.55);
}

.ais-blueprint__badge {
  padding: 0.32em 1em;
  border-radius: 8px;
  font-weight: 700;
  letter-spacing: 0.12em;
  background: rgba(123, 47, 247, 0.18);
  color: var(--ais-accent);
  transition: all 0.35s ease;
}

.ais-blueprint__badge[data-conf="medium"] {
  background: rgba(67, 210, 224, 0.16);
  color: var(--ais-cyan);
}

.ais-blueprint__body {
  padding: 1.6rem 1.7rem 1.8rem;
  display: grid;
  gap: 0.75rem;
  flex: 1;
  align-content: start;
}

.ais-blueprint__body.is-swap {
  animation: ais-swap 0.45s cubic-bezier(0.2, 0.7, 0.2, 1);
}

.ais-blueprint__label {
  margin: 0;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ais-cyan);
}

.ais-blueprint__title {
  margin: 0;
  font-size: clamp(1.35rem, 2.2vw, 1.75rem);
  line-height: 1.25;
  color: #fff;
}

.ais-blueprint__desc {
  margin: 0;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.72);
}

.ais-blueprint__meta {
  display: grid;
  gap: 0.55rem;
  margin: 0.4rem 0 1rem;
}

.ais-blueprint__meta > div {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding: 0.75em 1.05em;
  border-radius: 11px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.ais-blueprint__meta dt {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.6);
}

.ais-blueprint__meta dd {
  margin: 0;
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--ais-accent);
  white-space: nowrap;
}

/* ===========================================================================
   5 · IMPACT BANDS (scroll-lit)
   =========================================================================== */

.ais-impact {
  position: relative;
  background:
    radial-gradient(900px 480px at 12% -10%, rgba(123, 47, 247, 0.18), transparent 60%),
    linear-gradient(180deg, var(--ais-navy), var(--ais-navy-2));
  padding: clamp(4rem, 8vw, 7rem) 0;
}

.ais-bands {
  display: grid;
  gap: 1.15rem;
}

.ais-band {
  padding: 1.35rem 1.5rem;
  border-radius: 15px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.05);
  cursor: default;
  transition: border-color 0.3s ease, transform 0.3s ease, background-color 0.3s ease;
}

.ais-band:hover,
.ais-band:focus-visible {
  transform: translateY(-2px);
  border-color: rgba(123, 47, 247, 0.5);
  background: rgba(255, 255, 255, 0.08);
  outline: none;
}

.ais-band__top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
}

.ais-band__top b {
  font-size: 1.12rem;
  color: #fff;
}

.ais-band__val {
  font-size: 1.55rem;
  font-weight: 700;
  color: var(--ais-accent);
  font-variant-numeric: tabular-nums;
}

.ais-band__track {
  height: 10px;
  margin-top: 0.85rem;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.12);
  overflow: hidden;
}

.ais-band__fill {
  display: block;
  height: 100%;
  width: 0;
  border-radius: 6px;
  background: var(--ais-grad);
  transition: width 1s cubic-bezier(0.2, 0.7, 0.2, 1);
}

.ais-band.is-lit .ais-band__fill {
  width: var(--w, 0%);
}

.ais-band__note {
  margin: 0.85rem 0 0;
  font-size: 0.9rem;
  line-height: 1.55;
  color: rgba(255, 255, 255, 0.55);
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, opacity 0.35s ease, margin 0.35s ease;
}

.ais-band:hover .ais-band__note,
.ais-band:focus-visible .ais-band__note {
  max-height: 4.5em;
  opacity: 1;
}

/* ===========================================================================
   6 · CASE FILES (vertical tabs)
   =========================================================================== */

.ais-cases {
  background: var(--ais-paper);
  padding: clamp(4rem, 8vw, 7rem) 0;
}

.ais-files {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: start;
}

.ais-files__nav {
  display: grid;
  gap: 0.55rem;
}

.ais-file {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-areas: "idx name" "idx hint";
  align-items: center;
  column-gap: 1rem;
  padding: 1.05rem 1.35rem;
  border-radius: 14px;
  border: 1px solid rgba(25, 28, 63, 0.1);
  border-left: 4px solid transparent;
  background: #fff;
  font-family: inherit;
  text-align: left;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.2, 0.7, 0.2, 1);
}

.ais-file__idx {
  grid-area: idx;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--ais-accent);
}

.ais-file__name {
  grid-area: name;
  font-size: 1.12rem;
  font-weight: 700;
  color: var(--ais-ink);
}

.ais-file__hint {
  grid-area: hint;
  font-size: 0.82rem;
  color: var(--ais-mute);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.ais-file:hover {
  transform: translateX(5px);
  border-color: rgba(123, 47, 247, 0.45);
}

.ais-file.is-on {
  background: linear-gradient(120deg, var(--ais-navy), var(--ais-navy-2));
  border-color: transparent;
  border-left-color: var(--ais-accent);
  box-shadow: var(--ais-shadow-deep);
  transform: none;
}

.ais-file.is-on .ais-file__name {
  color: #fff;
}

.ais-file.is-on .ais-file__idx {
  color: var(--ais-cyan);
}

.ais-file.is-on .ais-file__hint {
  color: rgba(255, 255, 255, 0.55);
}

.ais-files__panel {
  padding: clamp(1.8rem, 3.4vw, 2.6rem);
  border-radius: var(--ais-r);
  border: 1px solid rgba(25, 28, 63, 0.12);
  background:
    radial-gradient(420px 260px at 90% -10%, rgba(123, 47, 247, 0.1), transparent 60%),
    #fff;
  box-shadow: var(--ais-shadow);
  min-height: 320px;
}

.ais-files__panel.is-swap {
  animation: ais-swap 0.45s cubic-bezier(0.2, 0.7, 0.2, 1);
}

.ais-files__quote {
  margin: 0;
  font-size: clamp(1.25rem, 2.3vw, 1.7rem);
  line-height: 1.5;
  font-weight: 600;
  color: var(--ais-ink);
}

.ais-files__quote::before {
  content: "\201C";
  color: var(--ais-accent);
  font-size: 1.4em;
  line-height: 0;
  vertical-align: -0.28em;
  margin-right: 0.06em;
}

.ais-files__scope {
  margin: 1.15rem 0 0;
  line-height: 1.7;
  color: var(--ais-mute);
  max-width: 46em;
}

.ais-files__metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin: 1.5rem 0 0;
}

.ais-files__metrics > div {
  flex: 1 1 150px;
  padding: 0.95rem 1.15rem;
  border-radius: 12px;
  border: 1px dashed rgba(25, 28, 63, 0.2);
  background: var(--ais-paper);
}

.ais-files__metrics dt {
  font-size: 0.82rem;
  color: var(--ais-mute);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.ais-files__metrics dd {
  margin: 0.25rem 0 0;
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--ais-ink);
}

/* ===========================================================================
   7 · SIGNAL GRID (gauges)
   =========================================================================== */

.ais-signals {
  background:
    radial-gradient(1000px 520px at 88% 0%, rgba(123, 47, 247, 0.08), transparent 55%),
    #fff;
  padding: clamp(4rem, 8vw, 7rem) 0;
}

.ais-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.1rem;
}

.ais-gauge {
  display: grid;
  justify-items: center;
  gap: 0.55rem;
  padding: 1.7rem 1.4rem 1.8rem;
  border-radius: var(--ais-r);
  border: 1px solid rgba(25, 28, 63, 0.1);
  background: var(--ais-paper);
  text-align: center;
  transition: transform 0.35s cubic-bezier(0.2, 0.7, 0.2, 1), box-shadow 0.35s ease, border-color 0.3s ease;
}

.ais-gauge:hover,
.ais-gauge:focus-visible {
  transform: translateY(-5px);
  border-color: rgba(123, 47, 247, 0.5);
  box-shadow: var(--ais-shadow);
  outline: none;
}

.ais-gauge__ring {
  width: 130px;
  height: 130px;
  transform: rotate(-90deg);
}

.ais-gauge__bg {
  fill: none;
  stroke: rgba(25, 28, 63, 0.12);
  stroke-width: 9;
}

.ais-gauge__arc {
  fill: none;
  stroke: var(--ais-accent);
  stroke-width: 9;
  stroke-linecap: round;
  stroke-dasharray: 263.9;
  stroke-dashoffset: 263.9;
  transition: stroke-dashoffset 1.1s cubic-bezier(0.2, 0.7, 0.2, 1);
}

.ais-gauge.is-lit .ais-gauge__arc {
  stroke-dashoffset: var(--off, 263.9);
}

.ais-gauge__num {
  transform: rotate(90deg);
  transform-origin: 50px 50px;
  font-size: 17px;
  font-weight: 700;
  fill: var(--ais-ink);
}

.ais-gauge h3 {
  margin: 0.35rem 0 0;
  font-size: 1.12rem;
  color: var(--ais-ink);
}

.ais-gauge p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--ais-mute);
}

/* ===========================================================================
   8 · BRIEF BUILDER CTA
   =========================================================================== */

.ais-brief {
  padding: clamp(3.5rem, 7vw, 6.5rem) 0 clamp(4.5rem, 9vw, 8rem);
  background: var(--ais-paper);
}

.ais-brief__card {
  position: relative;
  width: var(--ais-shell);
  margin-inline: auto;
  padding: clamp(2.8rem, 6vw, 5rem) clamp(1.6rem, 5vw, 4.5rem);
  border-radius: clamp(24px, 3vw, 38px);
  background:
    radial-gradient(700px 380px at 12% -20%, rgba(123, 47, 247, 0.22), transparent 60%),
    radial-gradient(700px 380px at 92% 120%, rgba(67, 210, 224, 0.18), transparent 60%),
    linear-gradient(160deg, var(--ais-navy), var(--ais-navy-2));
  border: 1px solid rgba(123, 47, 247, 0.3);
  box-shadow: var(--ais-shadow-deep);
  overflow: hidden;
  text-align: center;
  display: grid;
  justify-items: center;
}

.ais-brief__card .ais-h2 {
  color: #fff;
}

.ais-brief__card .ais-sub {
  color: rgba(255, 255, 255, 0.72);
  max-width: 42em;
}

.ais-brief__card .ais-kicker {
  color: var(--ais-accent);
}

.ais-brief__glow {
  position: absolute;
  inset: -40%;
  background: radial-gradient(closest-side, rgba(123, 47, 247, 0.14), transparent);
  animation: ais-pulse 7s ease-in-out infinite alternate;
  pointer-events: none;
}

@keyframes ais-pulse {
  from { transform: scale(0.85) rotate(0deg); opacity: 0.65; }
  to { transform: scale(1.15) rotate(18deg); opacity: 1; }
}

.ais-brief__picks {
  display: grid;
  gap: 1.15rem;
  width: min(720px, 100%);
  margin: 1.9rem 0 0;
  text-align: left;
}

.ais-pick {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 1rem;
  align-items: center;
  padding: 1rem 1.25rem;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.05);
}

.ais-pick > p {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--ais-accent);
}

.ais-pick__opts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.ais-pick__opts button {
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  padding: 0.55em 1.15em;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.05);
  color: rgba(255, 255, 255, 0.72);
  cursor: pointer;
  transition: all 0.25s ease;
}

.ais-pick__opts button:hover {
  border-color: var(--ais-cyan);
  color: #fff;
  transform: translateY(-1px);
}

.ais-pick__opts button.is-on {
  background: rgba(123, 47, 247, 0.2);
  border-color: var(--ais-accent);
  color: #fff;
  box-shadow: 0 10px 26px rgba(123, 47, 247, 0.25);
}

.ais-brief__line {
  margin: 1.75rem 0 0;
  font-size: clamp(1.15rem, 2.2vw, 1.55rem);
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.85);
  max-width: 30em;
}

.ais-brief__line b {
  color: var(--ais-cyan);
  border-bottom: 2px dashed rgba(67, 210, 224, 0.5);
  padding-bottom: 0.05em;
  transition: color 0.3s ease;
}

.ais-brief__line.is-swap b {
  animation: ais-swap 0.4s cubic-bezier(0.2, 0.7, 0.2, 1);
}

.ais-brief__note {
  margin: 1.5rem 0 0;
  font-size: 0.92rem;
  letter-spacing: 0.05em;
  color: rgba(255, 255, 255, 0.55);
}

/* ===========================================================================
   RESPONSIVE
   =========================================================================== */

@media (max-width: 1100px) {
  .ais-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

}

@media (max-width: 900px) {
  :root {
    --ais-shell: min(92%, 1320px);
  }

  .ais-hero__in {
    /* Same tablet/phone gutters as hero-unified.css. */
    width: calc(100% - 2 * var(--gutter, 1rem));
  }

  .ais-hero__in,
  .ais-index,
  .ais-anatomy__grid,
  .ais-config__grid,
  .ais-files {
    grid-template-columns: 1fr;
  }

  .ais-specimen {
    position: static;
  }

  .ais-cluster {
    max-width: 620px;
    justify-self: center;
  }

  .ais-pick {
    grid-template-columns: 1fr;
    gap: 0.55rem;
  }
}

@media (max-width: 600px) {
  .ais-cluster__stage {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-template-areas:
      "core core"
      "vision language"
      "forecasting automation"
      "trust trust";
    grid-template-rows: auto;
    gap: 0.75rem;
  }

  .ais-cluster__core { min-height: 8rem; }
  .ais-mod { font-size: 0.95rem; }
  .ais-mod--trust { flex-direction: row; min-height: 3.4rem; gap: 0.65rem; }
  .ais-cluster__note { font-size: 0.95rem; }
}

@media (max-width: 640px) {
  .ais-h1 {
    font-size: clamp(2.1rem, 9vw, 2.8rem);
  }

  .ais-grid {
    grid-template-columns: 1fr;
  }

  .ais-stats {
    gap: 1.2rem;
  }

  .ais-files__nav {
    grid-auto-flow: column;
    grid-auto-columns: minmax(215px, 1fr);
    overflow-x: auto;
    scrollbar-width: none;
    padding-bottom: 0.5rem;
  }

  .ais-files__nav::-webkit-scrollbar {
    display: none;
  }

  .ais-file:hover {
    transform: none;
  }

  .ais-brief__card {
    text-align: left;
    justify-items: start;
  }

  .ais-actions--center {
    justify-content: flex-start;
  }
}

/* ---------- motion & contrast preferences -------------------------------- */

@media (prefers-reduced-motion: reduce) {
  .ais *,
  .ais *::before,
  .ais *::after {
    animation-duration: 0.001s !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.12s !important;
  }

  .ais-rise {
    opacity: 1;
    transform: none;
  }

  .ais-band .ais-band__fill {
    transition: none;
  }
}

/* Reduced motion keeps the hero readable and all five modules selectable.
   JavaScript also disables autoplay until the visitor explicitly presses Play. */
@media (prefers-reduced-motion: reduce) {
  .ais-hero__plate,
  .ais-aurora,
  .ais-hero .ais-h1 .ais-grad,
  .ais-hero .ais-eyebrow__tick,
  .ais-hero .ais-actions .ais-btn--fill > span[aria-hidden],
  .ais-hero__copy > .ais-crumb,
  .ais-hero__copy > .ais-eyebrow,
  .ais-hero__copy > .ais-lead,
  .ais-hero__copy > .ais-actions,
  .ais-hero__copy > .ais-stats,
  .ais-hero .ais-rise,
  .ais-cluster__note.is-on {
    animation: none !important;
    opacity: 1;
    transform: none;
  }
  .ais-cluster__progress .is-current i {
    animation: none !important;
    transform: scaleX(1);
  }
  .ais-cluster .ais-mod { transition: none; }
}