/* ============================================================
   Part 4 — Buttons（ボタン） cards 046–060
   ============================================================ */

/* ---------- 046 Shine Sweep (b01-) ---------- */
.b01-btn{
  position:relative;
  overflow:hidden;
  background:var(--cd);
  color:#fff;
  font-weight:800;
  font-size:16px;
  letter-spacing:2px;
  padding:16px 34px;
  border-radius:999px;
  cursor:pointer;
}
.b01-gloss{
  position:absolute;
  top:-30%;
  bottom:-30%;
  left:0;
  width:38px;
  background:linear-gradient(105deg,
    rgba(255,255,255,0) 0%,
    rgba(255,255,255,.25) 25%,
    rgba(255,255,255,.9) 50%,
    rgba(255,255,255,.25) 75%,
    rgba(255,255,255,0) 100%);
  transform:translateX(-70px) skewX(-18deg);
  animation:b01-sweep 2.2s infinite;
  pointer-events:none;
}
@keyframes b01-sweep{
  0%{transform:translateX(-70px) skewX(-18deg);animation-timing-function:ease-in-out}
  48%{transform:translateX(200px) skewX(-18deg)}
  100%{transform:translateX(200px) skewX(-18deg)}
}

/* ---------- 047 Ripple Tap (b02-) ---------- */
.b02-wrap{
  position:relative;
  display:grid;
  place-items:center;
}
.b02-btn{
  position:relative;
  z-index:2;
  background:var(--cd);
  color:#fff;
  font-weight:800;
  font-size:16px;
  letter-spacing:2px;
  padding:15px 32px;
  border-radius:18px;
  cursor:pointer;
  animation:b02-dip 1.8s infinite;
}
.b02-ripple{
  position:absolute;
  z-index:3;
  width:44px;
  height:44px;
  border-radius:50%;
  border:3px solid rgba(255,255,255,.95);
  transform:scale(.4);
  opacity:0;
  animation:b02-ripple 1.8s infinite;
  pointer-events:none;
}
@keyframes b02-ripple{
  0%,8%{transform:scale(.4);opacity:0}
  14%{opacity:.9;animation-timing-function:cubic-bezier(.2,.6,.35,1)}
  62%{transform:scale(3);opacity:0}
  100%{transform:scale(3);opacity:0}
}
@keyframes b02-dip{
  0%,6%{transform:translateY(0) scale(1)}
  14%{transform:translateY(3px) scale(.95);animation-timing-function:cubic-bezier(.34,1.56,.64,1)}
  34%{transform:translateY(0) scale(1)}
  100%{transform:translateY(0) scale(1)}
}

/* ---------- 048 Border Draw (b03-) ---------- */
.b03-btn{
  position:relative;
  width:142px;
  height:54px;
  display:flex;
  align-items:center;
  justify-content:center;
  color:#fff;
  font-weight:800;
  font-size:16px;
  letter-spacing:3px;
  cursor:pointer;
}
.b03-t,.b03-b{
  position:absolute;
  left:0;
  right:0;
  height:3px;
  background:#fff;
  border-radius:2px;
}
.b03-r,.b03-l{
  position:absolute;
  top:0;
  bottom:0;
  width:3px;
  background:#fff;
  border-radius:2px;
}
.b03-t{top:0;transform-origin:left center;transform:scaleX(0);animation:b03-top 3.6s linear infinite}
.b03-r{right:0;transform-origin:center top;transform:scaleY(0);animation:b03-right 3.6s linear infinite}
.b03-b{bottom:0;transform-origin:right center;transform:scaleX(0);animation:b03-bottom 3.6s linear infinite}
.b03-l{left:0;transform-origin:center bottom;transform:scaleY(0);animation:b03-left 3.6s linear infinite}
@keyframes b03-top{
  0%{transform:scaleX(0)}
  10%{transform:scaleX(1)}
  85%{transform:scaleX(1)}
  95%{transform:scaleX(0)}
  100%{transform:scaleX(0)}
}
@keyframes b03-right{
  0%,10%{transform:scaleY(0)}
  20%{transform:scaleY(1)}
  75%{transform:scaleY(1)}
  85%{transform:scaleY(0)}
  100%{transform:scaleY(0)}
}
@keyframes b03-bottom{
  0%,20%{transform:scaleX(0)}
  30%{transform:scaleX(1)}
  65%{transform:scaleX(1)}
  75%{transform:scaleX(0)}
  100%{transform:scaleX(0)}
}
@keyframes b03-left{
  0%,30%{transform:scaleY(0)}
  40%{transform:scaleY(1)}
  55%{transform:scaleY(1)}
  65%{transform:scaleY(0)}
  100%{transform:scaleY(0)}
}

/* ---------- 049 Fill Wipe (b04-) ---------- */
.b04-btn{
  position:relative;
  width:142px;
  height:52px;
  border:3px solid #fff;
  border-radius:999px;
  overflow:hidden;
  cursor:pointer;
}
.b04-fill{
  position:absolute;
  inset:0;
  background:#fff;
  clip-path:inset(0 100% 0 0);
  animation:b04-wipe 3s infinite;
}
.b04-text{
  position:absolute;
  inset:0;
  display:flex;
  align-items:center;
  justify-content:center;
  font-weight:800;
  font-size:16px;
  letter-spacing:3px;
}
.b04-white{color:#fff}
.b04-dark{
  color:var(--cd);
  clip-path:inset(0 100% 0 0);
  animation:b04-wipe 3s infinite;
}
@keyframes b04-wipe{
  0%,8%{clip-path:inset(0 100% 0 0);animation-timing-function:cubic-bezier(.4,0,.2,1)}
  32%{clip-path:inset(0 0 0 0)}
  58%{clip-path:inset(0 0 0 0);animation-timing-function:cubic-bezier(.4,0,.2,1)}
  82%{clip-path:inset(0 0 0 100%)}
  82.01%,100%{clip-path:inset(0 100% 0 0)}
}

/* ---------- 050 Lift Float (b05-) ---------- */
.b05-scene{
  position:relative;
  width:150px;
  height:104px;
  display:flex;
  justify-content:center;
  align-items:flex-start;
  padding-top:14px;
}
.b05-btn{
  position:relative;
  z-index:2;
  background:#fff;
  color:var(--cd);
  font-weight:800;
  font-size:15px;
  letter-spacing:2px;
  padding:14px 28px;
  border-radius:16px;
  cursor:pointer;
  animation:b05-rise 2.6s cubic-bezier(.45,0,.25,1) infinite;
}
.b05-shadow{
  position:absolute;
  bottom:8px;
  left:50%;
  width:92px;
  height:14px;
  margin-left:-46px;
  border-radius:50%;
  background:var(--cd);
  opacity:.5;
  filter:blur(2px);
  animation:b05-shadow 2.6s cubic-bezier(.45,0,.25,1) infinite;
}
@keyframes b05-rise{
  0%,10%{transform:translateY(0)}
  40%{transform:translateY(-18px)}
  62%{transform:translateY(-18px)}
  88%{transform:translateY(0)}
  100%{transform:translateY(0)}
}
@keyframes b05-shadow{
  0%,10%{transform:scale(1);opacity:.5}
  40%{transform:scale(1.35,1.2);opacity:.28}
  62%{transform:scale(1.35,1.2);opacity:.28}
  88%{transform:scale(1);opacity:.5}
  100%{transform:scale(1);opacity:.5}
}

/* ---------- 051 Jelly Press (b06-) ---------- */
.b06-btn{
  background:#fff;
  color:var(--cd);
  font-weight:800;
  font-size:16px;
  letter-spacing:2px;
  padding:17px 34px;
  border-radius:22px;
  cursor:pointer;
  transform-origin:50% 100%;
  animation:b06-squish 2.2s ease-in-out infinite;
}
@keyframes b06-squish{
  0%,12%{transform:scale(1,1)}
  30%{transform:scale(1.16,.64)}
  42%{transform:scale(.92,1.14)}
  54%{transform:scale(1.07,.94)}
  66%{transform:scale(.98,1.03)}
  76%{transform:scale(1,1)}
  100%{transform:scale(1,1)}
}

/* ---------- 052 Glow Breathe (b07-) ---------- */
.b07-btn{
  background:var(--cd);
  color:#fff;
  font-weight:800;
  font-size:16px;
  letter-spacing:3px;
  padding:16px 34px;
  border-radius:999px;
  cursor:pointer;
  box-shadow:0 0 6px 0 rgba(255,255,255,.25);
  animation:b07-breathe 2.4s ease-in-out infinite;
}
@keyframes b07-breathe{
  0%,100%{box-shadow:0 0 6px 0 rgba(255,255,255,.25);transform:scale(1)}
  50%{box-shadow:0 0 26px 8px rgba(255,255,255,.75);transform:scale(1.03)}
}

/* ---------- 053 Arrow Nudge (b08-) ---------- */
.b08-btn{
  display:flex;
  align-items:center;
  gap:10px;
  background:var(--cd);
  color:#fff;
  font-weight:800;
  font-size:16px;
  letter-spacing:2px;
  padding:16px 28px;
  border-radius:999px;
  cursor:pointer;
}
.b08-arrow{
  width:11px;
  height:11px;
  border-top:3.5px solid #fff;
  border-right:3.5px solid #fff;
  border-radius:1px;
  transform:translateX(0) rotate(45deg);
  animation:b08-nudge 2.4s ease-in-out infinite;
}
@keyframes b08-nudge{
  0%{transform:translateX(0) rotate(45deg)}
  10%{transform:translateX(6px) rotate(45deg)}
  20%{transform:translateX(0) rotate(45deg)}
  30%{transform:translateX(6px) rotate(45deg)}
  42%{transform:translateX(0) rotate(45deg)}
  100%{transform:translateX(0) rotate(45deg)}
}

/* ---------- 054 Underline Slide (b09-) ---------- */
.b09-link{
  position:relative;
  color:#fff;
  font-weight:700;
  font-size:28px;
  letter-spacing:3px;
  padding:0 6px 10px;
  cursor:pointer;
}
.b09-track{
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:4px;
  border-radius:2px;
  overflow:hidden;
}
.b09-line{
  display:block;
  width:100%;
  height:100%;
  border-radius:2px;
  background:#fff;
  transform:translateX(-105%);
  animation:b09-slide 2.8s infinite;
}
@keyframes b09-slide{
  0%,8%{transform:translateX(-105%);animation-timing-function:cubic-bezier(.22,1,.36,1)}
  30%{transform:translateX(0)}
  62%{transform:translateX(0);animation-timing-function:cubic-bezier(.55,0,.55,.2)}
  84%{transform:translateX(105%)}
  100%{transform:translateX(105%)}
}

/* ---------- 055 Plus-Close Spin (b10-) ---------- */
.b10-fab{
  width:62px;
  height:62px;
  border-radius:50%;
  background:#fff;
  display:flex;
  align-items:center;
  justify-content:center;
  cursor:pointer;
  animation:b10-pop 3s ease-in-out infinite;
}
.b10-plus{
  position:relative;
  width:26px;
  height:26px;
  animation:b10-spin 3s infinite;
}
.b10-plus::before{
  content:"";
  position:absolute;
  left:0;
  right:0;
  top:50%;
  height:5px;
  margin-top:-2.5px;
  border-radius:3px;
  background:var(--cd);
}
.b10-plus::after{
  content:"";
  position:absolute;
  top:0;
  bottom:0;
  left:50%;
  width:5px;
  margin-left:-2.5px;
  border-radius:3px;
  background:var(--cd);
}
@keyframes b10-spin{
  0%,30%{transform:rotate(0deg);animation-timing-function:cubic-bezier(.34,1.56,.64,1)}
  45%{transform:rotate(45deg)}
  75%{transform:rotate(45deg);animation-timing-function:cubic-bezier(.34,1.56,.64,1)}
  90%{transform:rotate(0deg)}
  100%{transform:rotate(0deg)}
}
@keyframes b10-pop{
  0%,30%{transform:scale(1)}
  37%{transform:scale(1.1)}
  45%{transform:scale(1)}
  75%{transform:scale(1)}
  82%{transform:scale(1.1)}
  90%{transform:scale(1)}
  100%{transform:scale(1)}
}

/* ---------- 056 Hard Shadow Pop (b11-) ---------- */
.b11-btn{
  background:#fff;
  color:var(--cd);
  font-weight:800;
  font-size:16px;
  letter-spacing:2px;
  padding:15px 30px;
  border-radius:14px;
  cursor:pointer;
  box-shadow:7px 7px 0 var(--cd);
  animation:b11-press 2.2s ease-in-out infinite;
}
@keyframes b11-press{
  0%,18%{transform:translate(0,0);box-shadow:7px 7px 0 var(--cd)}
  32%{transform:translate(7px,7px);box-shadow:0 0 0 var(--cd)}
  48%{transform:translate(7px,7px);box-shadow:0 0 0 var(--cd);animation-timing-function:cubic-bezier(.34,1.56,.64,1)}
  62%{transform:translate(-3px,-3px);box-shadow:10px 10px 0 var(--cd)}
  74%{transform:translate(0,0);box-shadow:7px 7px 0 var(--cd)}
  100%{transform:translate(0,0);box-shadow:7px 7px 0 var(--cd)}
}

/* ---------- 057 Badge Wiggle (b12-) ---------- */
.b12-wrap{
  position:relative;
}
.b12-btn{
  background:var(--cd);
  color:#fff;
  font-weight:800;
  font-size:16px;
  letter-spacing:2px;
  padding:16px 30px;
  border-radius:16px;
  cursor:pointer;
}
.b12-badge{
  position:absolute;
  top:-11px;
  right:-11px;
  width:26px;
  height:26px;
  border-radius:50%;
  background:#fff;
  color:var(--cd);
  font-weight:800;
  font-size:14px;
  line-height:1;
  display:flex;
  align-items:center;
  justify-content:center;
  animation:b12-ring 2.6s ease-in-out infinite;
}
@keyframes b12-ring{
  0%,55%{transform:rotate(0deg) scale(1)}
  58%{transform:rotate(16deg) scale(1.18)}
  63%{transform:rotate(-13deg) scale(1.18)}
  68%{transform:rotate(11deg) scale(1.12)}
  73%{transform:rotate(-8deg) scale(1.06)}
  78%{transform:rotate(5deg) scale(1)}
  83%,100%{transform:rotate(0deg) scale(1)}
}

/* ---------- 058 Label Swap (b13-) ---------- */
.b13-btn{
  position:relative;
  width:152px;
  height:52px;
  background:var(--cd);
  border-radius:999px;
  overflow:hidden;
  cursor:pointer;
}
.b13-word{
  position:absolute;
  inset:0;
  display:flex;
  align-items:center;
  justify-content:center;
  color:#fff;
  font-weight:800;
  font-size:16px;
  letter-spacing:2px;
}
.b13-en{animation:b13-out 3.6s infinite}
.b13-ja{
  font-size:15px;
  letter-spacing:1px;
  transform:translateY(130%);
  animation:b13-in 3.6s infinite;
}
@keyframes b13-out{
  0%,38%{transform:translateY(0);animation-timing-function:cubic-bezier(.5,-0.3,.5,1)}
  48%{transform:translateY(-130%)}
  48.01%{transform:translateY(130%)}
  88%{transform:translateY(130%);animation-timing-function:cubic-bezier(.22,1.3,.36,1)}
  98%{transform:translateY(0)}
  100%{transform:translateY(0)}
}
@keyframes b13-in{
  0%,38%{transform:translateY(130%);animation-timing-function:cubic-bezier(.22,1.3,.36,1)}
  48%{transform:translateY(0)}
  88%{transform:translateY(0);animation-timing-function:cubic-bezier(.5,-0.3,.5,1)}
  98%{transform:translateY(-130%)}
  98.01%,100%{transform:translateY(130%)}
}

/* ---------- 059 Marching Dashes (b14-) ---------- */
.b14-btn{
  position:relative;
  width:150px;
  height:56px;
  display:flex;
  align-items:center;
  justify-content:center;
  color:#fff;
  font-weight:800;
  font-size:16px;
  letter-spacing:3px;
  cursor:pointer;
}
.b14-svg{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  overflow:visible;
  pointer-events:none;
}
.b14-dash{
  animation:b14-march 1.6s linear infinite;
}
@keyframes b14-march{
  0%{stroke-dashoffset:0}
  100%{stroke-dashoffset:-36.32}
}

/* ---------- 060 Like Burst (b15-) ---------- */
.b15-scene{
  position:relative;
  width:130px;
  height:130px;
  display:flex;
  align-items:center;
  justify-content:center;
}
.b15-heart{
  width:82px;
  height:82px;
  display:block;
  transform-origin:center;
  animation:b15-pop 2.6s ease-in-out infinite;
}
.b15-fill{
  transform-box:fill-box;
  transform-origin:center;
  transform:scale(0);
  animation:b15-fill 2.6s infinite;
}
.b15-ring{
  position:absolute;
  left:50%;
  top:50%;
  width:72px;
  height:72px;
  margin:-36px 0 0 -36px;
  border-radius:50%;
  border:4px solid rgba(255,255,255,.9);
  transform:scale(.3);
  opacity:0;
  animation:b15-ring 2.6s infinite;
  pointer-events:none;
}
.b15-ray{
  position:absolute;
  left:50%;
  top:50%;
  width:0;
  height:0;
}
.b15-dot{
  position:absolute;
  left:-4px;
  top:-4px;
  width:8px;
  height:8px;
  border-radius:50%;
  background:#fff;
  opacity:0;
  transform:translateY(-12px) scale(.3);
  animation:b15-dot 2.6s infinite;
}
@keyframes b15-fill{
  0%,13%{transform:scale(0);animation-timing-function:cubic-bezier(.34,1.56,.64,1)}
  25%{transform:scale(1.22)}
  33%{transform:scale(1)}
  68%{transform:scale(1);animation-timing-function:cubic-bezier(.5,0,.75,.4)}
  78%{transform:scale(0)}
  100%{transform:scale(0)}
}
@keyframes b15-pop{
  0%,13%{transform:scale(1)}
  22%{transform:scale(1.14)}
  33%{transform:scale(1)}
  100%{transform:scale(1)}
}
@keyframes b15-ring{
  0%,14%{transform:scale(.3);opacity:0}
  19%{opacity:.9;animation-timing-function:cubic-bezier(.2,.6,.35,1)}
  46%{transform:scale(1.55);opacity:0}
  100%{transform:scale(1.55);opacity:0}
}
@keyframes b15-dot{
  0%,14%{transform:translateY(-12px) scale(.3);opacity:0}
  20%{opacity:1}
  26%{transform:translateY(-30px) scale(1);opacity:1}
  46%{transform:translateY(-54px) scale(.4);opacity:0}
  100%{transform:translateY(-54px) scale(.4);opacity:0}
}