/* ============================================================
   SPARK EVOLUTION LEFT - left-centric scroll experience
   All animation driven by --evl-p (0-1), scoped to section.
   ============================================================ */

.evo-left-scroll {
  --evl-p: 0;
  --evl-bg: #050505;
  --evl-white: #f5f5f3;
  --evl-muted: rgba(245, 245, 243, 0.60);
  --evl-faint: rgba(245, 245, 243, 0.11);
  --evl-line: rgba(245, 245, 243, 0.16);
  --evl-hot: #f4f0e8;
  position: relative;
  min-height: 870vh;
  font-family: "Space Grotesk", Arial, Helvetica, sans-serif;
}

/* ---- Sticky viewport ---- */
.evl-sticky {
  position: sticky;
  top: 0;
  height: 100vh;
  min-height: 640px;
  background: var(--evl-bg);
  overflow: hidden;
  isolation: isolate;
}

/* ---- Atmosphere ---- */
.evl-atm {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.evl-atm::after {
  content: "";
  position: absolute;
  inset: -20%;
  background: repeating-linear-gradient(
    0deg,
    rgba(245, 245, 243, 0.012) 0,
    rgba(245, 245, 243, 0.012) 1px,
    transparent 1px,
    transparent 8px
  );
  opacity: 0.10;
  mix-blend-mode: screen;
}

/* ---- Progress rail (bottom) ---- */
.evl-rail {
  position: absolute;
  bottom: clamp(18px, 3vw, 40px);
  left: clamp(18px, 3vw, 42px);
  right: clamp(18px, 3vw, 42px);
  height: 1px;
  background: var(--evl-faint);
  z-index: 10;
}

.evl-fill {
  display: block;
  width: 0%;
  height: 100%;
  background: var(--evl-white);
  transition: width 120ms linear;
}

/* ---- Nav ---- */
.evl-nav {
  position: absolute;
  bottom: calc(clamp(18px, 3vw, 40px) + 12px);
  left: clamp(18px, 3vw, 42px);
  right: clamp(18px, 3vw, 42px);
  z-index: 10;
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 10px;
  color: rgba(245, 245, 243, 0.30);
  font-size: clamp(0.60rem, 0.82vw, 0.76rem);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.evl-nav span {
  position: relative;
  padding-top: 9px;
  white-space: nowrap;
  overflow: hidden;
  transition: color 300ms ease;
}

.evl-nav span::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 1px;
  background: rgba(245, 245, 243, 0.13);
}

.evl-nav span.is-active { color: var(--evl-white); }
.evl-nav span.is-active::before { background: var(--evl-white); }

/* ---- Scene base ---- */
.evl-scene {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-columns: 45% 55%;
  padding: clamp(28px, 4vw, 56px);
  padding-bottom: calc(clamp(28px, 4vw, 56px) + 64px);
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity 480ms cubic-bezier(0.16, 1, 0.3, 1),
    transform 600ms cubic-bezier(0.16, 1, 0.3, 1);
  pointer-events: none;
}

.evl-scene.is-active {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

/* ---- Panels ---- */
.evl-left {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-right: clamp(20px, 3vw, 50px);
}

.evl-right {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: visible;
}

/* ============================================================
   SCENE 0 - INTRO
   Heading lines fade-in and rise with scroll
   ============================================================ */

.evl-kicker {
  margin: 0 0 clamp(14px, 2vw, 24px);
  color: var(--evl-muted);
  font-size: clamp(0.72rem, 0.95vw, 0.88rem);
  font-weight: 600;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  opacity: calc(var(--evl-p) * 3);
}

.evl-headline {
  margin: 0;
  color: var(--evl-white);
  font-size: clamp(2.6rem, 6.5vw, 7.5rem);
  font-weight: 700;
  line-height: 1.0;
  letter-spacing: -0.025em;
}

/* Line 1: rises first */
.evl-hline {
  display: block;
  opacity: calc(var(--evl-p) * 2.2);
  transform: translateY(calc((1 - var(--evl-p)) * 64px));
}

/* Line 2: rises slightly later with more travel */
.evl-hline-2 {
  opacity: calc((var(--evl-p) - 0.22) * 2.6);
  transform: translateY(calc((1 - var(--evl-p)) * 96px));
  color: var(--evl-hot);
}

/* ============================================================
   SCENE 1 - STATEMENT
   ============================================================ */

.evl-statement-text {
  margin: 0;
  color: var(--evl-white);
  font-size: clamp(1.25rem, 2.6vw, 2.4rem);
  font-weight: 400;
  line-height: 1.28;
  letter-spacing: 0;
  opacity: var(--evl-p);
  transform: scale(calc(0.93 + var(--evl-p) * 0.07)) translateX(calc((1 - var(--evl-p)) * -20px));
}

/* ============================================================
   SCENES 2-4 - V, F, X
   Left: service name slides in from left
   Right: giant letter + floating terms
   ============================================================ */

.evl-service {
  margin: 0;
  color: var(--evl-white);
  font-size: clamp(1.8rem, 4vw, 5.5rem);
  font-weight: 600;
  line-height: 1.04;
  letter-spacing: -0.02em;
  opacity: var(--evl-p);
  transform: translateX(calc((1 - var(--evl-p)) * -48px));
}

/* Giant letter */
.evl-letter-shell {
  position: relative;
  display: grid;
  place-items: center;
  width: min(50vw, 580px);
  aspect-ratio: 1;
}

.evl-giant {
  color: rgba(245, 245, 243, 0.025);
  -webkit-text-stroke: clamp(1px, 0.18vw, 3px) rgba(245, 245, 243, 0.88);
  font-size: clamp(13rem, 36vw, 34rem);
  font-weight: 760;
  line-height: 0.8;
  letter-spacing: 0;
  transform: scale(calc(0.72 + var(--evl-p) * 0.28)) translateY(calc((1 - var(--evl-p)) * 28px));
  opacity: calc(0.40 + var(--evl-p) * 0.60);
  filter: drop-shadow(0 0 28px rgba(245, 245, 243, 0.06));
}

/* Term cloud */
.evl-terms {
  position: absolute;
  inset: 6%;
  pointer-events: none;
}

.evl-terms span {
  position: absolute;
  top: 50%; left: 50%;
  padding: 9px 13px;
  border: 1px solid var(--evl-line);
  background: rgba(5, 5, 5, 0.90);
  color: var(--evl-white);
  font-size: clamp(0.74rem, 1.05vw, 0.98rem);
  line-height: 1;
  white-space: nowrap;
  opacity: 0;
  transform: translate3d(-50%, -50%, 0) scale(0.94);
  transition:
    opacity 480ms cubic-bezier(0.16, 1, 0.3, 1),
    transform 580ms cubic-bezier(0.16, 1, 0.3, 1);
}

.evl-terms span:nth-child(1),
.evl-terms span:nth-child(2),
.evl-terms span:nth-child(3) {
  border-color: rgba(245, 245, 243, 0.44);
  color: var(--evl-hot);
}

.evl-scene.is-active .evl-terms span { opacity: 1; }

.evl-scene.is-active .evl-terms span:nth-child(1) {
  transform: translate3d(-50%,-50%,0) translate3d(-11vw,-12vw,0) rotate(-4deg) scale(1);
  transition-delay: 80ms;
}
.evl-scene.is-active .evl-terms span:nth-child(2) {
  transform: translate3d(-50%,-50%,0) translate3d(12vw,-7vw,0) rotate(3deg) scale(1);
  transition-delay: 150ms;
}
.evl-scene.is-active .evl-terms span:nth-child(3) {
  transform: translate3d(-50%,-50%,0) translate3d(-14vw,2.5vw,0) rotate(2deg) scale(1);
  transition-delay: 220ms;
}
.evl-scene.is-active .evl-terms span:nth-child(4) {
  transform: translate3d(-50%,-50%,0) translate3d(13vw,8vw,0) rotate(-2deg) scale(1);
  transition-delay: 290ms;
}
.evl-scene.is-active .evl-terms span:nth-child(5) {
  transform: translate3d(-50%,-50%,0) translate3d(-6vw,13vw,0) rotate(4deg) scale(1);
  transition-delay: 360ms;
}

/* ============================================================
   SCENE 5 - MERGE
   Left: 3 service names + paragraph (left-justified, staggered)
   Right: VFX letters fly together
   ============================================================ */

.evl-merge .evl-left {
  gap: calc(5vw * (1 - var(--evl-p)) + 24px);
}

/* Service list */
.evl-svc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: clamp(8px, 1.2vw, 16px);
}

.evl-svc-list li {
  color: var(--evl-white);
  font-size: clamp(1.1rem, 2.2vw, 2.4rem);
  font-weight: 600;
  letter-spacing: -0.015em;
  line-height: 1.1;
}

.evl-svc-list li:nth-child(1) {
  opacity: calc(var(--evl-p) * 3.5);
  transform: translateX(calc((1 - var(--evl-p)) * -36px));
}
.evl-svc-list li:nth-child(2) {
  opacity: calc((var(--evl-p) - 0.18) * 3.5);
  transform: translateX(calc((1 - var(--evl-p)) * -36px));
}
.evl-svc-list li:nth-child(3) {
  opacity: calc((var(--evl-p) - 0.36) * 3.5);
  transform: translateX(calc((1 - var(--evl-p)) * -36px));
}

.evl-merge-para {
  margin: 0;
  color: var(--evl-muted);
  font-size: clamp(0.88rem, 1.3vw, 1.2rem);
  line-height: 1.58;
  opacity: calc((var(--evl-p) - 0.52) * 3);
  transform: translateY(calc((1 - var(--evl-p)) * 22px));
}

/* VFX lockup - right side */
.evl-vfx {
  display: flex;
  flex-direction: row;
  align-items: baseline;
  justify-content: center;
  gap: calc(3vw * (1 - var(--evl-p)) + 0.06em);
  margin: 0;
  color: var(--evl-white);
  font-size: clamp(4rem, 14vw, 16rem);
  font-weight: 750;
  line-height: 0.8;
  letter-spacing: -0.02em;
}

.evl-vfx span {
  display: inline-block;
  opacity: calc(0.28 + var(--evl-p) * 0.72);
}

/* V: sweeps in from upper-left */
.evl-vfx span:nth-child(1) {
  transform: translate3d(
    calc((1 - var(--evl-p)) * -28vw),
    calc((1 - var(--evl-p)) * 46px),
    0
  );
}
/* F: drops from above */
.evl-vfx span:nth-child(2) {
  transform: translate3d(0, calc((1 - var(--evl-p)) * -58px), 0);
}
/* X: sweeps in from upper-right */
.evl-vfx span:nth-child(3) {
  transform: translate3d(
    calc((1 - var(--evl-p)) * 28vw),
    calc((1 - var(--evl-p)) * 46px),
    0
  );
}

/* ============================================================
   RESPONSIVE - TABLET (761px to 1024px)
   ============================================================ */

@media (max-width: 1024px) {
  .evl-letter-shell { width: min(44vw, 480px); }

  .evl-giant {
    font-size: clamp(10rem, 30vw, 24rem);
    -webkit-text-stroke: clamp(1px, 0.22vw, 4px) rgba(245, 245, 243, 0.88);
  }

  .evl-headline { font-size: clamp(2.2rem, 5vw, 5rem); }
  .evl-service  { font-size: clamp(1.5rem, 3.2vw, 4rem); }
  .evl-vfx      { font-size: clamp(3.5rem, 12vw, 13rem); }
}

/* ============================================================
   RESPONSIVE - MOBILE (up to 760px)
   ============================================================ */

@media (max-width: 760px) {
  .evo-left-scroll { min-height: 800vh; }

  /* Base: single column stack */
  .evl-scene {
    grid-template-columns: 1fr;
    grid-template-rows: 1fr auto;
  }

  .evl-left  { padding-right: 0; justify-content: flex-end; }
  .evl-right { justify-content: center; align-items: center; }

  /* ---- Intro + Statement: full-width, no empty right panel ---- */
  .evl-intro,
  .evl-statement {
    grid-template-rows: 1fr;
    align-items: center;
  }
  .evl-intro .evl-right,
  .evl-statement .evl-right { display: none; }

  .evl-intro .evl-left,
  .evl-statement .evl-left { justify-content: center; }

  /* ---- Letter scenes: giant letter on top, service name below ---- */
  .evl-letter {
    grid-template-rows: 1fr auto;
    /* Remove horizontal padding so letter centres across full viewport */
    padding-left: 0;
    padding-right: 0;
  }
  .evl-letter .evl-right { order: -1; }
  .evl-letter .evl-left  {
    justify-content: flex-start;
    padding-left: clamp(28px, 4vw, 56px);
    padding-right: clamp(28px, 4vw, 56px);
    padding-bottom: clamp(14px, 3vw, 24px);
  }

  /* Giant letter: full-bleed centred */
  .evl-letter-shell { width: min(90vw, 420px); }
  .evl-giant {
    font-size: clamp(13rem, 80vw, 28rem);
    -webkit-text-stroke: clamp(2px, 1vw, 4px) rgba(245, 245, 243, 0.92);
  }

  /* Term cloud: tighter vw offsets for narrow viewport */
  .evl-scene.is-active .evl-terms span:nth-child(1) {
    transform: translate3d(-50%,-50%,0) translate3d(-8vw,-8vw,0) rotate(-4deg) scale(1);
  }
  .evl-scene.is-active .evl-terms span:nth-child(2) {
    transform: translate3d(-50%,-50%,0) translate3d(9vw,-6vw,0) rotate(3deg) scale(1);
  }
  .evl-scene.is-active .evl-terms span:nth-child(3) {
    transform: translate3d(-50%,-50%,0) translate3d(-10vw,3vw,0) rotate(2deg) scale(1);
  }
  .evl-scene.is-active .evl-terms span:nth-child(4) {
    transform: translate3d(-50%,-50%,0) translate3d(9vw,7vw,0) rotate(-2deg) scale(1);
  }
  .evl-scene.is-active .evl-terms span:nth-child(5) {
    transform: translate3d(-50%,-50%,0) translate3d(-4vw,11vw,0) rotate(4deg) scale(1);
  }

  /* Typography */
  .evl-headline      { font-size: clamp(2rem, 9vw, 3.6rem); }
  .evl-service       { font-size: clamp(1.4rem, 6.5vw, 2.4rem); }
  .evl-statement-text{ font-size: clamp(1.1rem, 4.5vw, 1.6rem); }

  /* ---- Merge scene: VFX on top, list + para below ---- */
  .evl-merge { grid-template-rows: auto auto; }
  .evl-merge .evl-right {
    order: -1;
    padding-bottom: clamp(10px, 2vw, 18px);
  }
  .evl-merge .evl-left { justify-content: center; }

  .evl-vfx { font-size: clamp(7.5rem, 36vw, 16rem); }

  /* Reduce fly-in distances so letters don't shoot off-screen */
  .evl-vfx span:nth-child(1) {
    transform: translate3d(
      calc((1 - var(--evl-p)) * -14vw),
      calc((1 - var(--evl-p)) * 30px),
      0
    );
  }
  .evl-vfx span:nth-child(3) {
    transform: translate3d(
      calc((1 - var(--evl-p)) * 14vw),
      calc((1 - var(--evl-p)) * 30px),
      0
    );
  }

  .evl-svc-list li   { font-size: clamp(1rem, 4.5vw, 1.8rem); }
  .evl-merge-para    { font-size: clamp(0.82rem, 3vw,