/* ==========================================================================
   Aetheris — Design System
   Tokens, base, layout primitives, components, utilities.
   8px spacing scale, mobile-first, BEM naming.
   ========================================================================== */

/* ---------- 1. Tokens ---------------------------------------------------- */
:root {
  /* Color */
  --c-abyss:       #0b0f1c;
  --c-abyss-deep:  #060914;
  --c-surface:     #121627;
  --c-foreground:  #e8eaf2;
  --c-mist:        #b8bccb;
  --c-muted:       #757a8c;
  --c-veil:        rgba(255, 255, 255, 0.08);
  --c-veil-strong: rgba(255, 255, 255, 0.14);
  --c-lume:        #6fe6f5;
  --c-lume-soft:   #9bd9e5;
  --c-pulse:       #8b7cf6;
  --c-danger:      #ef4f4f;

  /* Spacing — 8px scale */
  --s-1:  8px;
  --s-2:  16px;
  --s-3:  24px;
  --s-4:  32px;
  --s-5:  40px;
  --s-6:  48px;
  --s-8:  64px;
  --s-10: 80px;
  --s-12: 96px;
  --s-16: 128px;
  --s-20: 160px;

  /* Typography */
  --font-serif: "Cormorant Garamond", Georgia, "Times New Roman", serif;
  --font-sans:  "Instrument Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  --fs-xs:   12px;
  --fs-sm:   14px;
  --fs-base: 16px;
  --fs-lg:   18px;
  --fs-xl:   20px;
  --fs-2xl:  24px;
  --fs-3xl:  32px;
  --fs-4xl:  44px;
  --fs-5xl:  60px;
  --fs-6xl:  84px;
  --fs-7xl:  120px;

  --lh-tight:  1.05;
  --lh-snug:   1.2;
  --lh-base:   1.55;
  --lh-loose:  1.75;

  --tracking-tight: -0.02em;
  --tracking-wide:  0.2em;
  --tracking-wider: 0.3em;

  /* Radius */
  --r-sm:  6px;
  --r-md:  12px;
  --r-lg:  20px;
  --r-xl:  32px;
  --r-full: 999px;

  /* Effects */
  --shadow-glow: 0 8px 60px -12px rgba(111, 230, 245, 0.35);
  --shadow-soft: 0 12px 40px -16px rgba(0, 0, 0, 0.6);
  --t-fast:  150ms ease;
  --t-base:  300ms ease;
  --t-slow:  600ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Layout */
  --container-max: 1280px;
  --container-pad: var(--s-3);
}

@media (min-width: 768px) {
  :root { --container-pad: var(--s-4); }
}

/* ---------- 2. Reset / base --------------------------------------------- */
*,
*::before,
*::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  background-color: var(--c-abyss);
  color: var(--c-foreground);
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: var(--lh-base);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, svg, video { display: block; max-width: 100%; height: auto; }

a { color: inherit; text-decoration: none; transition: color var(--t-base); }
a:hover { color: var(--c-lume); }

button { font: inherit; color: inherit; cursor: pointer; border: 0; background: transparent; }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: 300;
  line-height: var(--lh-tight);
  letter-spacing: var(--tracking-tight);
  margin: 0;
  text-wrap: balance;
}

p { margin: 0; }

::selection { background: rgba(111, 230, 245, 0.3); color: var(--c-foreground); }

:focus-visible { outline: 2px solid var(--c-lume); outline-offset: 3px; border-radius: var(--r-sm); }

/* ---------- 3. Layout primitives ---------------------------------------- */
.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.section {
  padding-block: var(--s-12);
}

@media (min-width: 768px) {
  .section { padding-block: var(--s-16); }
}

.section--tight    { padding-block: var(--s-8); }
.section--spacious { padding-block: var(--s-20); }

.grid { display: grid; gap: var(--s-3); }
.grid--2 { grid-template-columns: 1fr; }
.grid--3 { grid-template-columns: 1fr; }
.grid--4 { grid-template-columns: 1fr; }

@media (min-width: 768px) {
  .grid--2 { grid-template-columns: repeat(2, 1fr); gap: var(--s-5); }
  .grid--3 { grid-template-columns: repeat(3, 1fr); gap: var(--s-3); }
  .grid--4 { grid-template-columns: repeat(2, 1fr); gap: var(--s-3); }
}
@media (min-width: 1024px) {
  .grid--4 { grid-template-columns: repeat(4, 1fr); }
}

.stack > * + * { margin-top: var(--s-3); }
.stack--lg > * + * { margin-top: var(--s-5); }

/* ---------- 4. Aurora background --------------------------------------- */
.aurora {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}
.aurora__blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(140px);
  opacity: 0.5;
  animation: aurora-drift 16s cubic-bezier(0.4, 0, 0.2, 1) infinite;
  will-change: transform, opacity;
}
.aurora__blob--lume {
  width: 700px; height: 700px;
  top: -25%; left: -15%;
  background: var(--c-lume);
  opacity: 0.18;
}
.aurora__blob--pulse {
  width: 800px; height: 800px;
  bottom: -25%; right: -15%;
  background: var(--c-pulse);
  opacity: 0.18;
  animation-delay: -6s;
}

@keyframes aurora-drift {
  0%, 100% { transform: scale(1) translate(0, 0); }
  33%      { transform: scale(1.15) translate(30px, -20px); }
  66%      { transform: scale(0.92) translate(-20px, 25px); }
}

@media (prefers-reduced-motion: reduce) {
  .aurora__blob { animation: none; }
}

/* ---------- 5. Components: Header / Nav -------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  background: rgba(11, 15, 28, 0.7);
  border-bottom: 1px solid var(--c-veil);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--s-3);
}

.nav__brand {
  font-size: var(--fs-lg);
  letter-spacing: var(--tracking-wide);
  font-weight: 500;
}
.nav__brand-mark { color: var(--c-lume); }

.nav__list {
  display: none;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: var(--s-5);
}
@media (min-width: 900px) {
  .nav__list { display: flex; }
}

.nav__link {
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--c-muted);
  position: relative;
  padding-block: var(--s-1);
}
.nav__link:hover { color: var(--c-foreground); }
.nav__link--active { color: var(--c-lume); }
.nav__link--active::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 1px;
  background: var(--c-lume);
}

.nav__toggle {
  width: 40px; height: 40px;
  border-radius: var(--r-full);
  background: var(--c-veil);
  display: grid;
  place-items: center;
}
@media (min-width: 900px) {
  .nav__toggle { display: none; }
}
.nav__toggle-bars,
.nav__toggle-bars::before,
.nav__toggle-bars::after {
  content: "";
  display: block;
  width: 16px; height: 1px;
  background: var(--c-foreground);
  transition: transform var(--t-base);
}
.nav__toggle-bars { position: relative; }
.nav__toggle-bars::before { position: absolute; top: -6px; }
.nav__toggle-bars::after  { position: absolute; top: 6px; }

.nav__drawer {
  display: none;
  border-top: 1px solid var(--c-veil);
  background: var(--c-abyss-deep);
  padding: var(--s-3) var(--container-pad);
  animation: fade-in var(--t-base);
}
.nav__drawer--open { display: block; }
.nav__drawer-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--s-2);
}
.nav__drawer-link {
  display: block;
  padding-block: var(--s-1);
  font-size: var(--fs-sm);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--c-mist);
}

/* ---------- 6. Components: Buttons ------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--s-1);
  padding: var(--s-2) var(--s-4);
  border-radius: var(--r-full);
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  font-weight: 500;
  position: relative;
  overflow: hidden;
  transition: all var(--t-slow);
}
.btn__arrow {
  display: inline-block;
  opacity: 0;
  margin-left: 0;
  transform: translateX(-6px);
  transition: all var(--t-base);
}
.btn:hover .btn__arrow {
  opacity: 1;
  margin-left: var(--s-1);
  transform: translateX(0);
}

.btn--primary {
  background: var(--c-foreground);
  color: var(--c-abyss);
}
.btn--primary:hover {
  background: var(--c-lume);
  color: var(--c-abyss);
  box-shadow: var(--shadow-glow);
}

.btn--ghost {
  border: 1px solid var(--c-veil);
  color: var(--c-foreground);
}
.btn--ghost:hover {
  border-color: var(--c-lume);
  color: var(--c-lume);
}

/* ---------- 7. Components: Eyebrow & headings -------------------------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--s-1);
  padding: 6px var(--s-2);
  border-radius: var(--r-full);
  background: var(--c-veil);
  border: 1px solid var(--c-veil);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  color: var(--c-muted);
}
.eyebrow__dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--c-lume);
  box-shadow: 0 0 8px var(--c-lume);
  animation: lume-pulse 2.4s ease-in-out infinite;
}

@keyframes lume-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(111, 230, 245, 0.6); }
  50%      { box-shadow: 0 0 0 8px rgba(111, 230, 245, 0); }
}

.h-display {
  font-size: var(--fs-5xl);
  line-height: 0.92;
}
@media (min-width: 768px) { .h-display { font-size: var(--fs-6xl); } }
@media (min-width: 1024px) { .h-display { font-size: var(--fs-7xl); } }

.h-section {
  font-size: var(--fs-4xl);
  line-height: var(--lh-snug);
}
@media (min-width: 768px) { .h-section { font-size: var(--fs-5xl); } }

.h-card {
  font-size: var(--fs-2xl);
  line-height: var(--lh-snug);
}
@media (min-width: 768px) { .h-card { font-size: var(--fs-3xl); } }

.italic-lume { font-style: italic; color: var(--c-lume); }

.lead {
  font-size: var(--fs-lg);
  font-weight: 300;
  color: var(--c-mist);
  line-height: var(--lh-loose);
  max-width: 60ch;
}
@media (min-width: 768px) { .lead { font-size: var(--fs-xl); } }

/* ---------- 8. Components: Cards & glass ------------------------------- */
.glass {
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--c-veil);
  border-radius: var(--r-xl);
}

.card {
  background: var(--c-abyss);
  padding: var(--s-5);
  transition: background var(--t-base), transform var(--t-base);
}
@media (min-width: 768px) { .card { padding: var(--s-6); } }

.card--hoverable:hover {
  background: var(--c-abyss-deep);
}

.card-grid {
  display: grid;
  gap: 1px;
  background: var(--c-veil);
  border: 1px solid var(--c-veil);
  border-radius: var(--r-xl);
  overflow: hidden;
}
.card-grid--2 { grid-template-columns: 1fr; }
.card-grid--3 { grid-template-columns: 1fr; }
.card-grid--4 { grid-template-columns: 1fr 1fr; }

@media (min-width: 768px) {
  .card-grid--2 { grid-template-columns: repeat(2, 1fr); }
  .card-grid--3 { grid-template-columns: repeat(3, 1fr); }
  .card-grid--4 { grid-template-columns: repeat(4, 1fr); }
}

.capability {
  display: flex;
  flex-direction: column;
  gap: var(--s-2);
  text-align: left;
}
.capability__head {
  display: flex;
  justify-content: space-between;
  margin-bottom: var(--s-6);
  font-size: var(--fs-xs);
  color: var(--c-muted);
}
.capability__cta {
  color: var(--c-lume);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  opacity: 0;
  transition: opacity var(--t-base);
}
.card--hoverable:hover .capability__cta { opacity: 1; }

.step {
  display: flex;
  flex-direction: column;
  gap: var(--s-2);
}
.step__roman {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: var(--fs-4xl);
  color: var(--c-lume-soft);
  margin-bottom: var(--s-2);
}
.step__title {
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
}
.step__desc { color: var(--c-mist); font-size: var(--fs-sm); }

/* ---------- 9. Hero ----------------------------------------------------- */
.hero { position: relative; padding-block: var(--s-10) var(--s-16); }
@media (min-width: 768px) { .hero { padding-block: var(--s-12) var(--s-20); } }

.hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--s-8);
}
@media (min-width: 1024px) {
  .hero__inner { grid-template-columns: 2fr 1fr; align-items: start; gap: var(--s-6); }
}
.hero__title { margin-top: var(--s-4); }
.hero__sub {
  display: flex;
  flex-direction: column;
  gap: var(--s-4);
  margin-top: var(--s-6);
}
@media (min-width: 768px) {
  .hero__sub { flex-direction: row; align-items: center; gap: var(--s-5); }
}
.hero__sub-text {
  max-width: 32ch;
  color: var(--c-mist);
  font-size: var(--fs-sm);
  border-left: 1px solid var(--c-veil);
  padding-left: var(--s-3);
}

.hero__panel {
  position: relative;
}
@media (min-width: 1024px) {
  .hero__panel { margin-top: var(--s-16); }
}
.hero__panel-glow {
  position: absolute;
  inset: -4px;
  border-radius: var(--r-xl);
  background: linear-gradient(90deg, var(--c-lume), var(--c-pulse));
  filter: blur(20px);
  opacity: 0.25;
  transition: opacity var(--t-slow);
}
.hero__panel:hover .hero__panel-glow { opacity: 0.5; }
.hero__panel-card {
  position: relative;
  padding: var(--s-5);
}

.metric {
  display: flex;
  align-items: end;
  justify-content: space-between;
  margin-bottom: var(--s-6);
}
.metric__label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--c-muted);
}
.metric__value {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: var(--fs-3xl);
}
.metric__bars {
  display: flex;
  align-items: end;
  gap: 6px;
  height: 48px;
  width: 128px;
}
.metric__bar {
  flex: 1;
  background: var(--c-lume);
  border-radius: 2px 2px 0 0;
}

.kv-row {
  display: flex;
  justify-content: space-between;
  padding-block: var(--s-1);
  border-bottom: 1px solid var(--c-veil);
  font-size: var(--fs-sm);
}
.kv-row:last-child { border-bottom: 0; }
.kv-row__k { color: var(--c-muted); }
.kv-row__v { color: var(--c-lume); font-variant-numeric: tabular-nums; }

/* ---------- 10. Page header (sub-pages) -------------------------------- */
.page-header {
  position: relative;
  padding-block: var(--s-12) var(--s-8);
}
@media (min-width: 768px) {
  .page-header { padding-block: var(--s-16) var(--s-10); }
}
.page-header__inner { position: relative; z-index: 1; }
.page-header__title { margin-top: var(--s-4); }
.page-header__lead { margin-top: var(--s-6); }

/* ---------- 11. Service list rows -------------------------------------- */
.service-list {
  display: grid;
  gap: 1px;
  background: var(--c-veil);
  border: 1px solid var(--c-veil);
  border-radius: var(--r-xl);
  overflow: hidden;
}
.service-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-2);
  padding: var(--s-5);
  background: var(--c-abyss);
  transition: background var(--t-base);
}
@media (min-width: 768px) {
  .service-row {
    grid-template-columns: 40px 1fr 2fr auto;
    align-items: start;
    padding: var(--s-6);
    gap: var(--s-3);
  }
}
.service-row:hover { background: var(--c-abyss-deep); }
.service-row__n { color: var(--c-muted); font-size: var(--fs-xs); }
.service-row__tag {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  color: var(--c-lume);
}
.service-row__title {
  font-size: var(--fs-3xl);
  margin-top: var(--s-1);
  transition: transform var(--t-slow);
}
@media (min-width: 768px) { .service-row__title { font-size: var(--fs-4xl); } }
.service-row:hover .service-row__title { transform: translateX(8px); }
.service-row__desc { color: var(--c-mist); }
.service-row__cta {
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--c-muted);
}
.service-row:hover .service-row__cta { color: var(--c-lume); }

/* ---------- 12. Process timeline --------------------------------------- */
.timeline-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-1);
  padding-block: var(--s-3);
  border-bottom: 1px solid var(--c-veil);
}
@media (min-width: 768px) {
  .timeline-row {
    grid-template-columns: 5fr 2fr 5fr;
    gap: var(--s-3);
    align-items: start;
  }
}
.timeline-row__title { font-size: var(--fs-xl); }
.timeline-row__time {
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--c-lume);
}
.timeline-row__desc { color: var(--c-mist); }

/* ---------- 13. Case studies ------------------------------------------- */
.case {
  display: grid;
  gap: var(--s-5);
  align-items: center;
  margin-bottom: var(--s-12);
}
@media (min-width: 1024px) {
  .case {
    grid-template-columns: 7fr 5fr;
    gap: var(--s-8);
    margin-bottom: var(--s-16);
  }
  .case--reverse > .case__visual { order: 2; }
}

.case__visual {
  position: relative;
  aspect-ratio: 5 / 4;
  border-radius: var(--r-xl);
  overflow: hidden;
  background: linear-gradient(135deg, rgba(111, 230, 245, 0.15), rgba(139, 124, 246, 0.1) 50%, transparent);
  border: 1px solid var(--c-veil);
  display: grid;
  place-items: center;
}
.case__numeral {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(96px, 16vw, 224px);
  color: rgba(111, 230, 245, 0.3);
  line-height: 1;
}
.case__sector {
  position: absolute;
  bottom: var(--s-3);
  left: var(--s-3);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  color: var(--c-muted);
}
.case__meta {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  color: var(--c-lume);
  margin-bottom: var(--s-1);
}
.case__title { margin-bottom: var(--s-3); }
.case__body { color: var(--c-mist); margin-bottom: var(--s-5); }
.case__metric {
  border-top: 1px solid var(--c-veil);
  padding-top: var(--s-3);
}
.case__metric-value {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: var(--fs-5xl);
  color: var(--c-lume);
  line-height: 1;
}
.case__metric-label {
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--c-muted);
  margin-top: var(--s-1);
}

/* ---------- 14. Testimonials ------------------------------------------- */
.testimonial {
  display: flex;
  flex-direction: column;
  height: 100%;
}
.testimonial__quote-mark {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: var(--fs-5xl);
  line-height: 0.5;
  color: var(--c-lume-soft);
  margin-bottom: var(--s-3);
}
.testimonial__quote {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: var(--fs-xl);
  line-height: var(--lh-loose);
  color: var(--c-mist);
  flex: 1;
  margin: 0;
}
.testimonial__cite {
  margin-top: var(--s-4);
  padding-top: var(--s-3);
  border-top: 1px solid var(--c-veil);
  font-style: normal;
}
.testimonial__name { font-size: var(--fs-sm); }
.testimonial__role {
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--c-muted);
  margin-top: 4px;
}

/* ---------- 15. Stats grid --------------------------------------------- */
.stat { text-align: center; }
.stat__value {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: var(--fs-5xl);
  color: var(--c-lume);
  line-height: 1;
}
.stat__label {
  margin-top: var(--s-1);
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--c-muted);
}

/* ---------- 16. People ------------------------------------------------- */
.person { background: var(--c-abyss); padding: var(--s-3); }
.person__avatar {
  aspect-ratio: 1 / 1;
  border-radius: var(--r-lg);
  background: linear-gradient(135deg, rgba(111, 230, 245, 0.15), rgba(139, 124, 246, 0.15));
  display: grid;
  place-items: center;
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 80px;
  color: rgba(111, 230, 245, 0.4);
  margin-bottom: var(--s-3);
  transition: color var(--t-base);
}
.person:hover .person__avatar { color: rgba(111, 230, 245, 0.7); }
.person__name { font-size: var(--fs-xl); }
.person__role {
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--c-muted);
  margin-top: var(--s-1);
}

/* ---------- 17. Forms -------------------------------------------------- */
.form { display: flex; flex-direction: column; gap: var(--s-5); }
.form__row { display: grid; gap: var(--s-5); }
@media (min-width: 768px) {
  .form__row--2 { grid-template-columns: 1fr 1fr; }
}

.field {
  display: flex;
  flex-direction: column;
  gap: var(--s-1);
}
.field__label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  color: var(--c-muted);
}
.field__control {
  width: 100%;
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--c-veil);
  color: var(--c-foreground);
  font-family: inherit;
  font-size: var(--fs-lg);
  padding: var(--s-1) 0;
  transition: border-color var(--t-base);
  resize: none;
}
.field__control::placeholder { color: var(--c-muted); opacity: 0.6; }
.field__control:focus {
  outline: none;
  border-bottom-color: var(--c-lume);
}
.field__control--select {
  appearance: none;
  cursor: pointer;
  background: transparent url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12' fill='%236fe6f5'><path d='M6 9L1 4h10z'/></svg>") right center no-repeat;
}
.field__control--select option { background: var(--c-abyss-deep); color: var(--c-foreground); }

.chips { display: flex; flex-wrap: wrap; gap: var(--s-1); }
.chip {
  display: inline-flex;
  align-items: center;
  padding: var(--s-1) var(--s-2);
  border-radius: var(--r-full);
  border: 1px solid var(--c-veil);
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  cursor: pointer;
  transition: all var(--t-base);
  user-select: none;
}
.chip:hover { border-color: var(--c-lume); color: var(--c-lume); }
.chip__input { position: absolute; opacity: 0; pointer-events: none; }
.chip:has(.chip__input:checked) {
  background: var(--c-lume);
  color: var(--c-abyss);
  border-color: var(--c-lume);
}

.form__footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--s-3);
  padding-top: var(--s-2);
}
.form__legal {
  font-size: var(--fs-xs);
  color: var(--c-muted);
  max-width: 32ch;
}

.form-success {
  text-align: center;
  padding-block: var(--s-10);
  animation: fade-in var(--t-base);
}
.form-success__check {
  width: 56px; height: 56px;
  border-radius: 50%;
  background: rgba(111, 230, 245, 0.2);
  color: var(--c-lume);
  display: grid;
  place-items: center;
  font-size: var(--fs-2xl);
  margin: 0 auto var(--s-4);
}

/* ---------- 18. FAQ ---------------------------------------------------- */
.faq { border-top: 1px solid var(--c-veil); }
.faq__item {
  border-bottom: 1px solid var(--c-veil);
  padding-block: var(--s-3);
}
.faq__summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-size: var(--fs-lg);
  list-style: none;
}
.faq__summary::-webkit-details-marker { display: none; }
.faq__icon {
  color: var(--c-lume);
  font-size: var(--fs-2xl);
  transition: transform var(--t-base);
  line-height: 1;
}
.faq__item[open] .faq__icon { transform: rotate(45deg); }
.faq__body {
  margin-top: var(--s-2);
  color: var(--c-mist);
  max-width: 70ch;
}

/* ---------- 19. Pull quote --------------------------------------------- */
.pull-quote {
  position: relative;
  padding: var(--s-6);
  overflow: hidden;
}
@media (min-width: 768px) { .pull-quote { padding: var(--s-10); } }

.pull-quote__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--s-5);
  align-items: end;
}
@media (min-width: 1024px) {
  .pull-quote__inner { grid-template-columns: 2fr 1fr; }
  .pull-quote__cta { text-align: right; }
}
.pull-quote__text {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: var(--fs-3xl);
  line-height: 1.2;
}
@media (min-width: 768px) { .pull-quote__text { font-size: var(--fs-4xl); } }

.author {
  display: flex;
  align-items: center;
  gap: var(--s-2);
  margin-top: var(--s-5);
}
.author__avatar {
  width: 48px; height: 48px;
  border-radius: 50%;
  background: rgba(111, 230, 245, 0.2);
  color: var(--c-lume);
  font-family: var(--font-serif);
  font-style: italic;
  font-size: var(--fs-xl);
  display: grid;
  place-items: center;
}
.author__name { font-size: var(--fs-sm); }
.author__role {
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--c-muted);
  margin-top: 4px;
}

/* ---------- 20. Footer ------------------------------------------------- */
.site-footer {
  position: relative;
  margin-top: var(--s-16);
  border-top: 1px solid var(--c-veil);
}
.site-footer__top {
  display: grid;
  gap: var(--s-5);
  padding-block: var(--s-10);
}
@media (min-width: 768px) {
  .site-footer__top {
    grid-template-columns: 5fr 3fr 2fr 2fr;
    gap: var(--s-5);
  }
}
.site-footer__brand-mark {
  font-size: var(--fs-2xl);
  letter-spacing: var(--tracking-wide);
  margin-bottom: var(--s-3);
}
.site-footer__tagline {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: var(--fs-2xl);
  color: var(--c-mist);
  max-width: 24ch;
}
.site-footer__heading {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  color: var(--c-muted);
  margin-bottom: var(--s-2);
}
.site-footer__list { list-style: none; padding: 0; margin: 0; }
.site-footer__list > * + * { margin-top: var(--s-1); }
.site-footer__bottom {
  border-top: 1px solid var(--c-veil);
  padding-block: var(--s-3);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--s-1);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  color: var(--c-muted);
}

/* ---------- 21. Utilities ---------------------------------------------- */
.u-text-center { text-align: center; }
.u-text-right  { text-align: right; }
.u-flex        { display: flex; }
.u-flex-between { display: flex; justify-content: space-between; align-items: center; gap: var(--s-3); flex-wrap: wrap; }
.u-flex-end-md  { display: flex; flex-direction: column; gap: var(--s-2); }
@media (min-width: 768px) {
  .u-flex-end-md  { align-items: flex-end; }
}
.u-mt-3 { margin-top: var(--s-3); }
.u-mt-5 { margin-top: var(--s-5); }
.u-mt-8 { margin-top: var(--s-8); }
.u-sr   { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }

/* ---------- 22. Animations --------------------------------------------- */
@keyframes fade-in {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity var(--t-slow), transform var(--t-slow);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}