/* カラオケ曲ガチャ 共通CSS（karaoke-gacha / result-singing / result-exciting） */
:root{
  --bg:#27113F;
  --bg-2:#1C0B2E;
  --panel:#37195A;
  --panel-2:#472574;
  --cream:#FFF3E4;
  --muted:#C7B2DC;
  --pop:#ee8800;
  --pop-dark:#c26a00;
  --ink-on-pop:#2E1A00;
  --mint:#2FD6B6;
  --lemon:#FFC93C;
  --font:"Noto Sans JP","Hiragino Kaku Gothic ProN","Hiragino Sans",Meiryo,sans-serif;
  --maxw:960px;
  color-scheme:dark;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--cream);
  font-family:var(--font);font-size:16px;line-height:1.9;letter-spacing:.02em;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit}
h1,h2{font-family:var(--font);font-weight:900;line-height:1.5;margin:0}
:focus-visible{outline:3px solid var(--lemon);outline-offset:3px;border-radius:8px}
.utkg-wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}

/* header */
.utkg-header{
  position:sticky;top:0;z-index:20;background:rgba(28,11,46,.92);
  backdrop-filter:blur(8px);border-bottom:2px solid rgba(255,243,228,.14);
}
.utkg-header-inner{
  max-width:var(--maxw);margin:0 auto;padding:9px 20px;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.utkg-logo{font-weight:900;font-size:18px;text-decoration:none;letter-spacing:.04em}
.utkg-logo span{color:var(--pop)}
.utkg-back{
  display:inline-flex;align-items:center;gap:7px;padding:8px 16px;border-radius:999px;
  border:2px solid rgba(255,243,228,.5);font-size:13px;font-weight:700;
  text-decoration:none;white-space:nowrap;transition:background .18s ease,border-color .18s ease;
}
.utkg-back:hover{background:rgba(255,243,228,.14);border-color:var(--cream)}

/* hero */
.utkg-hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(52% 58% at 20% 12%,rgba(238,136,0,.30),transparent 68%),
    radial-gradient(46% 56% at 86% 72%,rgba(47,214,182,.20),transparent 70%),
    var(--bg);
  border-bottom:2px solid rgba(255,243,228,.14);
}
.utkg-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,243,228,.10) 1.6px,transparent 1.7px);
  background-size:20px 20px;
}
.utkg-hero-inner{
  position:relative;z-index:2;
  max-width:700px;margin:0 auto;padding:18px 20px 24px;text-align:center;
}
.utkg-hero h1{font-size:clamp(20px,3.8vw,32px);margin-bottom:11px}
.utkg-hero h1 span.l{display:inline-block}
.mk{padding:0 3px;border-radius:3px}
.mk-mint{background:linear-gradient(transparent 58%,rgba(47,214,182,.55) 58%)}
.mk-pop{background:linear-gradient(transparent 58%,rgba(238,136,0,.65) 58%)}
.mk-lemon{background:linear-gradient(transparent 58%,rgba(255,201,60,.55) 58%)}
.utkg-hero-sub{margin:0 auto;color:var(--muted);font-size:14.5px;line-height:1.8;max-width:46em}

/* confetti */
.utkg-conf{position:absolute;border-radius:50%;opacity:.5;z-index:1}
.utkg-conf::after{content:"";position:absolute;left:0;right:0;top:0;height:50%;border-radius:999px 999px 0 0;background:rgba(255,243,228,.8)}

/* machine */
.utkg-machine-area{position:relative;max-width:136px;margin:6px auto 0;}
.utkg-machine{display:block;width:100%;user-select:none}
.utkg-machine svg{display:block;width:100%;height:auto;overflow:visible}
.utkg-handle{transform-origin:120px 232px;transition:transform 1.15s cubic-bezier(.5,.02,.2,1)}
.is-rolling .utkg-handle{transform:rotate(720deg)}
.utkg-ball{opacity:0}
.is-rolling .utkg-ball{animation:utkg-drop .7s .75s cubic-bezier(.3,1.5,.5,1) forwards}
@keyframes utkg-drop{
  0%{opacity:0;transform:translateY(-30px) scale(.7)}
  55%{opacity:1;transform:translateY(8px) scale(1.05)}
  100%{opacity:1;transform:translateY(0) scale(1)}
}
.is-rolling .utkg-dome-balls{animation:utkg-shake .28s 4 ease-in-out}
@keyframes utkg-shake{0%,100%{transform:translate(0,0)}25%{transform:translate(-4px,2px)}75%{transform:translate(4px,-2px)}}

/* roll buttons */
.utkg-rollbtns{display:flex;flex-wrap:wrap;gap:11px;justify-content:center;margin:18px 0 0}
.utkg-roll{
  background:var(--c);color:#20102E;box-shadow:0 5px 0 var(--d);
  padding:14px 26px;font-size:16px;
  transition:filter .16s ease,transform .16s ease;
}
.utkg-roll:hover{filter:brightness(1.1);transform:rotate(-1.2deg) scale(1.02)}
.utkg-roll:active{transform:translateY(4px);box-shadow:0 1px 0 var(--d)}
.utkg-roll:disabled{filter:grayscale(.4) brightness(.85);cursor:default;transform:none}
.utkg-rollnote{margin:9px 0 0;font-size:12px;color:var(--muted);min-height:1.3em}

/* result capsule */
.utkg-result{
  margin:12px auto 0;max-width:460px;
  background:var(--panel);border:3px solid var(--c,var(--lemon));border-radius:22px;
  padding:18px 20px 20px;text-align:center;
  box-shadow:0 14px 34px rgba(0,0,0,.45);
}
.utkg-result-cat{
  display:inline-block;background:var(--c,var(--pop));color:#20102E;
  font-weight:900;font-size:12.5px;letter-spacing:.06em;
  padding:3px 14px;border-radius:999px;margin:0 0 12px;
}
.utkg-result-title{font-weight:900;font-size:clamp(22px,5vw,29px);line-height:1.4;margin:0 0 6px}
/* 長い曲名は自動で縮める（ファーストビューを崩さないため） */
.utkg-result-title.is-long{font-size:clamp(19px,4.2vw,24px)}
.utkg-result-title.is-xlong{font-size:clamp(16px,3.4vw,20px);line-height:1.45}
.utkg-result-artist{margin:0 0 16px;font-size:14.5px;color:var(--muted);font-weight:700}
.utkg-result-cta{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.utkg-result-cta .utkg-btn{padding:13px 24px;font-size:15px}
.utkg-morebtn{
  display:inline-block;margin:12px 0 0;
  font-size:13px;font-weight:700;
  text-decoration:underline;text-underline-offset:4px;
}
.utkg-morebtn:hover{text-decoration-thickness:2px}

/* buttons */
.utkg-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:16px 34px;border-radius:999px;border:0;
  font-family:var(--font);font-weight:900;font-size:16.5px;
  text-decoration:none;cursor:pointer;
}
.utkg-want{
  background:var(--pop);color:var(--ink-on-pop);
  box-shadow:0 6px 0 var(--pop-dark);
  transition:background .16s ease,transform .16s ease;
}
.utkg-want:hover{background:#ffa22e;transform:rotate(-1.2deg) scale(1.02)}
.utkg-want:active{transform:translateY(4px);box-shadow:0 2px 0 var(--pop-dark)}
.utkg-btn-ghost{border:2px solid rgba(255,243,228,.5);padding:14px 30px}
.utkg-btn-ghost:hover{background:rgba(255,243,228,.14)}

/* body */
.utkg-body{max-width:var(--maxw);margin:0 auto;padding:34px 20px 56px}
.utkg-h2{font-size:clamp(21px,3.6vw,27px);margin-bottom:9px;text-align:center}
.utkg-lede{color:var(--muted);font-size:14px;margin:0 0 30px;text-align:center}
.utkg-groups{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px;align-items:start}
.utkg-group-title{
  display:inline-block;background:var(--c,var(--pop));color:#20102E;
  font-weight:900;font-size:13.5px;letter-spacing:.04em;
  padding:4px 15px;border-radius:999px;margin:0 0 12px;
}
.utkg-links{list-style:none;padding:0;margin:0;display:grid;gap:9px}
.utkg-link{
  display:flex;align-items:flex-start;justify-content:space-between;gap:10px;
  background:var(--panel);border:2px solid transparent;border-radius:15px;padding:13px 15px;
  text-decoration:none;font-size:13px;font-weight:700;line-height:1.7;
  transition:background .16s ease,border-color .16s ease,transform .16s ease;
}
.utkg-link:hover{background:var(--panel-2);border-color:var(--c,var(--pop));transform:translateY(-2px)}
.utkg-link svg{flex:none;opacity:.6;margin-top:5px}
.utkg-more{display:block;font-weight:700;color:var(--lemon);text-underline-offset:4px;text-align:center}

/* footer */
.utkg-footer{background:var(--bg-2);border-top:2px solid rgba(255,243,228,.14);padding:46px 0 34px;text-align:center}
.utkg-footer h2{font-size:clamp(18px,3.4vw,23px);margin-bottom:8px}
.utkg-footer p{color:var(--muted);font-size:14px;margin:0 0 22px}
.utkg-footer-cta{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}
.utkg-copy{margin-top:30px;padding-top:20px;font-size:12.5px;color:var(--muted)}

/* ===== 旧インラインstyleをクラス化 ===== */
/* 紙吹雪の配置 */
.utkg-conf--1{left:6%;top:16%;width:26px;height:26px;background:#2FD6B6;transform:rotate(-18deg)}
.utkg-conf--2{left:88%;top:12%;width:20px;height:20px;background:#FFC93C;transform:rotate(24deg)}
.utkg-conf--3{left:13%;top:72%;width:18px;height:18px;background:#ee8800;transform:rotate(12deg)}
.utkg-conf--4{left:80%;top:78%;width:28px;height:28px;background:#2FD6B6;transform:rotate(-30deg)}
.utkg-conf--5{left:94%;top:44%;width:15px;height:15px;background:#ee8800;transform:rotate(8deg)}
.utkg-conf--6{left:2%;top:46%;width:16px;height:16px;background:#FFC93C;transform:rotate(-8deg)}
/* カテゴリ色（--c:メイン色 / --d:ボタンの影色） */
.utkg-theme-mint{--c:var(--mint);--d:#1FA98F}
.utkg-theme-pop{--c:var(--pop);--d:var(--pop-dark)}
.utkg-theme-lemon{--c:var(--lemon)}

@media (max-width:860px){
  .utkg-hero-inner{padding:14px 20px 20px}
  .utkg-machine-area{max-width:114px}
  .utkg-body{padding:26px 20px 44px}
  .utkg-groups{grid-template-columns:1fr;gap:24px}
  .utkg-want{width:100%}
  .utkg-conf{display:none}
}
@media (max-width:600px){
  .utkg-wrap,.utkg-header-inner,.utkg-hero-inner,.utkg-body{padding-left:16px;padding-right:16px}
  .utkg-hero h1{font-size:19.5px}
  .utkg-hero-sub{font-size:13.5px;line-height:1.72}
  .utkg-roll{padding:13px 22px;font-size:15px}
  .utkg-machine-area{max-width:98px}
  .utkg-rollbtns{gap:8px}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.001ms !important;animation-duration:.001ms !important}
}