:root {
  --motion-fast:  0.35s;
  --motion-base:  0.7s;
  --motion-slow:  1.1s;
  --motion-ease:  cubic-bezier(0.22, 1, 0.36, 1);
}

@media (prefers-reduced-motion: reduce) {
  [data-reveal],
  [data-reveal] > * {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
  .m-particles { display: none; }
  .m-float, .m-sink, .m-tilt, .m-pulse::after { animation: none !important; }
  html { scroll-behavior: auto; }
}

[data-reveal] {
  opacity: 0;
  transition:
    opacity   var(--motion-base) ease,
    transform var(--motion-base) var(--motion-ease);
  transition-delay: var(--reveal-delay, 0ms);
}
[data-reveal="up"], [data-reveal=""]  { transform: translateY(38px); }
[data-reveal="left"]                  { transform: translateX(-46px); }
[data-reveal="right"]                 { transform: translateX(46px); }
[data-reveal="scale"]                 { transform: scale(0.86); }
[data-reveal="blur"]                  { filter: blur(10px); transform: translateY(22px); }

[data-reveal].is-in {
  opacity: 1;
  transform: none;
  filter: none;
}

[data-stagger] > * {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity   var(--motion-base) ease,
    transform var(--motion-base) var(--motion-ease);
}
[data-stagger].is-in > * {
  opacity: 1;
  transform: none;
}

.m-particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}
.m-particles span {
  position: absolute;
  bottom: -12px;
  width: var(--s);
  height: var(--s);
  border-radius: 50%;
  background: var(--c);
  opacity: 0;
  will-change: transform, opacity;
  animation: m-particle-rise var(--d) linear var(--delay) infinite;
}
@keyframes m-particle-rise {
  0%   { transform: translate3d(0, 0, 0);                   opacity: 0; }
  12%  {                                                    opacity: var(--o); }
  88%  {                                                    opacity: var(--o); }
  100% { transform: translate3d(var(--dx), var(--rise), 0); opacity: 0; }
}
[data-particles] > .container,
[data-particles] > * { position: relative; z-index: 1; }
[data-particles] > .m-particles { z-index: 0; }

.m-float { animation: m-float 4s ease-in-out infinite; will-change: transform; }
@keyframes m-float {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-18px); }
}

.m-sink { animation: m-sink 5.5s ease-in-out infinite; will-change: transform; }
@keyframes m-sink {
  0%, 100% { transform: translateY(-13px); }
  50%      { transform: translateY(15px); }
}

.m-tilt { animation: m-tilt 6s ease-in-out infinite; will-change: transform; }
@keyframes m-tilt {
  0%, 100% { transform: rotate(-3deg); }
  50%      { transform: rotate(3deg); }
}

.m-pulse { position: relative; display: inline-block; }
.m-pulse::after {
  content: "";
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  border: 2px solid var(--motion-pulse-color, var(--color-ai, #38BDF8));
  opacity: 0;
  animation: m-pulse 2.3s ease-out infinite;
  pointer-events: none;
}
@keyframes m-pulse {
  0%   { transform: scale(0.88); opacity: 0.85; }
  70%  { transform: scale(1.45); opacity: 0; }
  100% { transform: scale(1.45); opacity: 0; }
}

.m-corner {
  --m-corner-dot: var(--color-accent, #E03A3A);
  position: relative;
  display: inline-block;
  padding: 6px 16px;
  border: 1px solid var(--color-line, #2A313C);
  letter-spacing: 0.14em;
  font-size: 12px;

  background-image:
    radial-gradient(circle at center, var(--m-corner-dot) 2.6px, transparent 3.1px),
    radial-gradient(circle at center, var(--m-corner-dot) 2.6px, transparent 3.1px),
    radial-gradient(circle at center, var(--m-corner-dot) 2.6px, transparent 3.1px),
    radial-gradient(circle at center, var(--m-corner-dot) 2.6px, transparent 3.1px);
  background-size: 8px 8px;
  background-repeat: no-repeat;
  background-origin: border-box;
  background-position:
    -4px -4px,
    calc(100% + 4px) -4px,
    -4px calc(100% + 4px),
    calc(100% + 4px) calc(100% + 4px);
}

.m-divider {
  border: 0;
  border-top: 1px dashed var(--color-line, #2A313C);
  margin-block: 28px;
  opacity: 0.8;
}

.m-seigaiha { position: relative; }
.m-seigaiha::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: var(--motion-seigaiha-opacity, 0.05);
  background-image:
    radial-gradient(circle at 50% 100%, transparent 62%, currentColor 63%, currentColor 65%, transparent 66%);
  background-size: 44px 22px;
}
.m-seigaiha > * { position: relative; z-index: 1; }

.m-progress {
  position: fixed;
  inset: 0 0 auto 0;
  height: 3px;
  z-index: 9999;
  pointer-events: none;
  background: transparent;
}
.m-progress span {
  display: block;
  height: 100%;
  width: 0;
  background: var(--color-accent, #E03A3A);
  transition: width 0.1s linear;
}


[data-parallax] { will-change: transform; }

[data-count] { font-variant-numeric: tabular-nums; }

.m-split-char {
  display: inline-block;
  opacity: 0;
  transform: translateY(0.5em);
  will-change: transform, opacity;
}

[data-draw] { stroke-dasharray: var(--len); stroke-dashoffset: var(--len); }

[data-mask]{ clip-path: inset(0 100% 0 0); will-change: clip-path, transform; }
[data-mask].is-shown{ clip-path: inset(0 0 0 0); }
[data-lines] .m-line{ display:block; overflow:hidden; }
[data-lines] .m-line > span{ display:inline-block; transform: translateX(-.6em); opacity:0; }
[data-lines].is-shown .m-line > span{ transform:none; opacity:1; }

@media (prefers-reduced-motion: reduce){
  [data-mask]{ clip-path:none !important; }
  [data-lines] .m-line > span{ transform:none !important; opacity:1 !important; }
}