/* =====================================================================
 *  にゅるはうす  style.css
 *  テーマ：青空＋ステッカー。常駐レイヤーの上をカードが流れる多層スクロール。
 * ===================================================================== */

:root{
  /* 空 */
  --sky-top:  #6FB8EE;
  --sky-mid:  #A5D8F3;
  --sky-low:  #DCF0FC;
  --cloud:    #ffffff;

  /* キャラ由来のアクセント */
  --gold:     #FFC93C;   /* 髪・金の瞳・★ */
  --pink:     #FF9DC5;   /* 髪ハイライト */
  --blue:     #3D9BE8;   /* 青の瞳 */
  --purple:   #B79BE8;   /* 髪ハイライト */
  --chick:    #FFD84D;   /* ぴよち */

  /* 文字・線 */
  --ink:      #3A5680;   /* 黒の代わりの柔らかいネイビー */
  --ink-soft: #6E86AD;
  --line:     #ffffff;

  /* ステッカー */
  --sticker-radius: 26px;
  --sticker-border: 5px;
  --sticker-shadow: 0 14px 30px rgba(58,86,128,.18), 0 3px 0 rgba(58,86,128,.06);

  --maxw: 1080px;
  --font-disp: "Mochiy Pop One", system-ui, sans-serif;
  --font-latin:"Fredoka", system-ui, sans-serif;
  --font-body: "Zen Maru Gothic", system-ui, sans-serif;
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--ink);
  background:var(--sky-mid);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  line-height:1.8;
}
img{ display:block; max-width:100%; }
a{ color:inherit; text-decoration:none; }

/* =====================================================================
 *  常駐ステージ（背景・空・キャラ）— position:fixed で動かない
 * ===================================================================== */
.stage{ position:fixed; inset:0; z-index:0; overflow:hidden; pointer-events:none; }

.sky{
  position:absolute; inset:0;
  background:
    radial-gradient(120% 80% at 50% -10%, #BFE7FF 0%, transparent 55%),
    linear-gradient(180deg, var(--sky-top) 0%, var(--sky-mid) 42%, var(--sky-low) 100%);
}

/* --- 雲 --- */
.clouds{ position:absolute; inset:0; will-change:transform; }
.cloud{
  position:absolute;
  background:var(--cloud);
  border-radius:50%;
  filter:blur(2px);
  opacity:.92;
  box-shadow:
    60px 10px 0 -6px var(--cloud),
    120px 20px 0 -14px var(--cloud),
    -60px 18px 0 -10px var(--cloud);
}
.cloud::after{
  content:""; position:absolute; left:18%; top:-38%;
  width:64%; height:120%; background:var(--cloud); border-radius:50%;
}
.c1{ width:200px; height:64px; top:12%;  left:8%;  animation:floatX 46s linear infinite; }
.c2{ width:150px; height:50px; top:30%;  left:62%; opacity:.8;  animation:floatX 60s linear infinite reverse; }
.c3{ width:240px; height:74px; top:60%;  left:20%; opacity:.7;  animation:floatX 72s linear infinite; }
.c4{ width:120px; height:42px; top:78%;  left:74%; opacity:.85; animation:floatX 54s linear infinite reverse; }
@keyframes floatX{
  from{ transform:translateX(-12vw); }
  to{   transform:translateX(12vw); }
}

/* --- キラキラ・ぴよち・紙飛行機 --- */
.drift{ position:absolute; inset:0; will-change:transform; }
.drift span{ position:absolute; filter:drop-shadow(0 3px 4px rgba(58,86,128,.18)); }
.spark{ color:#fff; text-shadow:0 0 10px var(--gold); }
.s1{ top:18%; left:30%; font-size:24px; animation:twinkle 3.2s ease-in-out infinite; }
.s2{ top:46%; left:84%; font-size:18px; animation:twinkle 2.4s ease-in-out infinite .6s; }
.s3{ top:70%; left:46%; font-size:28px; animation:twinkle 3.8s ease-in-out infinite 1.1s; color:var(--gold); }
.paperplane{ top:26%; left:70%; font-size:30px; color:#fff; animation:plane 16s ease-in-out infinite; }
.chick{ font-size:34px; }
.ch1{ top:22%; left:14%; animation:bob 4.5s ease-in-out infinite; }
.ch2{ top:64%; left:80%; font-size:28px; animation:bob 5.5s ease-in-out infinite 1s; }
@keyframes twinkle{ 0%,100%{ opacity:.25; transform:scale(.8);} 50%{ opacity:1; transform:scale(1.15);} }
@keyframes bob{ 0%,100%{ transform:translateY(0) rotate(-4deg);} 50%{ transform:translateY(-14px) rotate(4deg);} }
@keyframes plane{
  0%{ transform:translate(0,0) rotate(-8deg); opacity:0; }
  10%{ opacity:1; }
  90%{ opacity:1; }
  100%{ transform:translate(-46vw,16vh) rotate(-8deg); opacity:0; }
}

/* --- 常駐キャラ（下隅から覗く） --- */
.resident{
  position:absolute;
  right:-40px; bottom:-30px;
  width:min(40vw, 440px);
  filter:drop-shadow(0 18px 26px rgba(58,86,128,.28));
  opacity:.96;
  animation:residentFloat 7s ease-in-out infinite;
  transform-origin:bottom center;
}
@keyframes residentFloat{ 0%,100%{ transform:translateY(0) rotate(-1deg);} 50%{ transform:translateY(-16px) rotate(1deg);} }

/* =====================================================================
 *  手前：スクロールする中身
 * ===================================================================== */
.scroll{ position:relative; z-index:2; }

/* ---------- ヒーロー ---------- */
.hero{
  min-height:100svh;
  display:flex; flex-direction:column; justify-content:center;
  gap:clamp(28px,5vw,56px);
  padding:clamp(28px,6vw,70px) clamp(20px,5vw,56px) 40px;
  max-width:var(--maxw); margin-inline:auto;
}
.hero-inner{
  display:grid; grid-template-columns:auto 1fr;
  gap:clamp(22px,4vw,52px); align-items:center;
}

/* ポートレート（ステッカー風の白フチ円） */
.hero-portrait{ position:relative; width:clamp(180px,26vw,300px); aspect-ratio:1; flex:none; }
.hero-portrait img{
  width:100%; height:100%; object-fit:cover; object-position:50% 18%;
  border-radius:50%;
  border:7px solid var(--line);
  background:
    radial-gradient(circle at 50% 38%, #fff 0%, #EAF6FF 70%, #D4ECFB 100%);
  box-shadow:var(--sticker-shadow);
}
/* 金＆青の瞳バッジ＝ブランドの核 */
.badge-eye{
  position:absolute; width:34px; height:34px; border-radius:50%;
  border:4px solid #fff; box-shadow:0 4px 10px rgba(58,86,128,.25);
}
.eye-gold{ background:radial-gradient(circle at 40% 35%, #FFE7A0, var(--gold)); top:14%; left:-6px; }
.eye-blue{ background:radial-gradient(circle at 40% 35%, #BBE2FF, var(--blue)); top:14%; right:-6px; }

.eyebrow{
  font-family:var(--font-latin); font-weight:700; letter-spacing:.18em;
  color:#fff; margin:0 0 10px;
  text-shadow:0 2px 0 var(--blue), 0 0 14px rgba(61,155,232,.5);
}
.title{ margin:0 0 14px; line-height:1.05; }
.title-sub{
  display:block; font-family:var(--font-disp);
  font-size:clamp(15px,2.2vw,20px); color:var(--pink);
  text-shadow:0 2px 0 #fff; margin-bottom:4px;
}
.title-main{
  display:block; font-family:var(--font-disp);
  font-size:clamp(46px,9vw,92px); color:var(--gold);
  -webkit-text-stroke:3px #fff;
  paint-order:stroke fill;
  text-shadow:0 8px 0 rgba(255,201,60,.28), 0 10px 18px rgba(58,86,128,.22);
}
.catch{
  display:inline-block;
  font-family:var(--font-disp); font-size:clamp(15px,2.4vw,21px);
  color:var(--ink); background:#fff;
  padding:12px 18px; border-radius:18px;
  border:4px solid var(--gold);
  box-shadow:var(--sticker-shadow);
  margin:6px 0 18px; line-height:1.5;
}
.lead{
  white-space:pre-line; max-width:46ch;
  color:var(--ink); font-weight:500; margin:0 0 22px;
  background:rgba(255,255,255,.66); backdrop-filter:blur(2px);
  padding:10px 14px; border-radius:14px;
}

/* SNS：アイコン画像そのものをボタンに */
.socials{ display:flex; gap:14px; flex-wrap:wrap; }
.social{
  display:flex; align-items:center; gap:10px;
  background:#fff; border:4px solid var(--line);
  border-radius:999px; padding:7px 16px 7px 7px;
  box-shadow:var(--sticker-shadow);
  font-family:var(--font-latin); font-weight:600; color:var(--ink);
  transition:transform .18s cubic-bezier(.34,1.56,.64,1), box-shadow .18s;
}
.social:hover{ transform:translateY(-4px) rotate(-2deg); box-shadow:0 20px 32px rgba(58,86,128,.26); }
.social:focus-visible{ outline:3px solid var(--gold); outline-offset:3px; }
.social img{ width:42px; height:42px; border-radius:50%; }
.social .s-text{ display:flex; flex-direction:column; line-height:1.15; align-items:flex-start; }
.social .s-label{ font-size:.98rem; }
.social .s-handle{ font-size:.74rem; color:var(--ink-soft); font-family:var(--font-body); font-weight:500; }
.social.is-soon{ opacity:.92; }
.social.is-soon::after{
  content:"準備中"; font-family:var(--font-body); font-size:.7rem;
  color:#fff; background:var(--pink); padding:2px 8px; border-radius:999px;
}

/* ---------- 横スクロール作品レール ---------- */
.works{ width:100%; }
.works-head{ display:flex; align-items:baseline; gap:14px; margin-bottom:14px; flex-wrap:wrap; }
.works-title{
  font-family:var(--font-disp); font-size:clamp(20px,3.4vw,30px);
  color:#fff; margin:0;
  text-shadow:0 3px 0 var(--pink), 0 6px 12px rgba(58,86,128,.25);
}
.works-hint{
  font-family:var(--font-latin); font-weight:600; color:var(--ink);
  background:#fff; padding:3px 12px; border-radius:999px; margin:0;
  box-shadow:0 6px 14px rgba(58,86,128,.16);
}

.rail-wrap{ position:relative; }
.rail{
  list-style:none; margin:0; padding:8px 4px 18px;
  display:flex; gap:18px;
  overflow-x:auto; overflow-y:hidden;
  scroll-snap-type:x mandatory;
  scroll-padding-left:4px;
  -webkit-overflow-scrolling:touch;
  scrollbar-width:none;
}
.rail::-webkit-scrollbar{ display:none; }

.rail > li{
  list-style:none;
  flex:0 0 clamp(220px,72vw,270px);
  display:flex;
}
.card{
  scroll-snap-align:start;
  width:100%;
  /* button を素のカード見た目にリセット */
  font:inherit; color:inherit; text-align:left; cursor:pointer; appearance:none; padding:0;
  background:#fff;
  border:var(--sticker-border) solid var(--line);
  border-radius:var(--sticker-radius);
  box-shadow:var(--sticker-shadow);
  overflow:hidden;
  transition:transform .2s cubic-bezier(.34,1.56,.64,1), box-shadow .2s;
}
.card:hover{ transform:translateY(-6px) rotate(-1deg); box-shadow:0 22px 36px rgba(58,86,128,.28); }
.card:focus-within{ outline:3px solid var(--gold); outline-offset:3px; }
.card-media{ position:relative; aspect-ratio:4/3; background:#EAF6FF; }
.card-media img{ width:100%; height:100%; object-fit:cover; object-position:50% 22%; }
.card-badge{
  position:absolute; top:10px; left:10px;
  font-family:var(--font-latin); font-weight:700; font-size:.72rem;
  color:#fff; padding:3px 11px; border-radius:999px;
  border:2px solid #fff; box-shadow:0 4px 10px rgba(58,86,128,.25);
}
.b-music{ background:var(--purple); }
.b-art{   background:var(--pink); }
.b-comic{ background:var(--gold); color:var(--ink); }
.b-movie{ background:var(--blue); }
.card-body{ padding:13px 15px 16px; }
.card-title{ font-family:var(--font-disp); font-size:1.02rem; margin:0 0 5px; color:var(--ink); }
.card-desc{ font-size:.84rem; color:var(--ink-soft); margin:0; }
.card-soon, .card-cta{ font-size:.78rem; color:var(--pink); font-weight:700; margin-top:8px; }
.card:focus-visible{ outline:3px solid var(--gold); outline-offset:3px; }

/* ---- 作品ライトボックス（拡大／再生） ---- */
.lightbox{ position:fixed; inset:0; z-index:50; display:flex; align-items:center; justify-content:center; padding:20px; }
.lightbox[hidden]{ display:none; }
.lb-backdrop{ position:absolute; inset:0; background:rgba(58,86,128,.55); backdrop-filter:blur(4px); }
.lb-panel{
  position:relative; z-index:1; width:min(560px,94vw); max-height:90vh; overflow:auto;
  background:#fff; border:6px solid #fff; border-radius:28px;
  box-shadow:0 30px 60px rgba(58,86,128,.4);
  animation:lbPop .25s cubic-bezier(.34,1.56,.64,1);
}
@keyframes lbPop{ from{ transform:scale(.92); opacity:0; } to{ transform:scale(1); opacity:1; } }
.lb-close{
  position:absolute; top:10px; right:10px; z-index:2;
  width:40px; height:40px; border-radius:50%; border:3px solid #fff;
  background:var(--gold); color:#fff; font-size:1.1rem; cursor:pointer;
  box-shadow:0 6px 14px rgba(58,86,128,.3);
}
.lb-close:hover{ background:var(--pink); }
.lb-close:focus-visible{ outline:3px solid var(--blue); outline-offset:3px; }
.lb-media img{ width:100%; height:auto; display:block; background:#EAF6FF; }
.lb-media iframe{ width:100%; aspect-ratio:1/1; display:block; border:0; }
.lb-media audio{ width:100%; display:block; margin-top:4px; }
.lb-info{ padding:16px 20px 20px; }
.lb-title{ font-family:var(--font-disp); color:var(--ink); margin:0 0 6px; }
.lb-desc{ color:var(--ink-soft); margin:0 0 12px; }
.lb-link{
  display:inline-block; font-family:var(--font-disp); font-size:.85rem; color:#fff;
  background:var(--blue); padding:8px 16px; border-radius:999px;
}
.lb-link:hover{ background:var(--purple); }

.rail-btn{
  position:absolute; top:calc(50% - 16px); transform:translateY(-50%);
  width:46px; height:46px; border-radius:50%;
  border:4px solid #fff; background:var(--gold); color:#fff;
  font-size:1.6rem; line-height:1; cursor:pointer;
  box-shadow:var(--sticker-shadow); z-index:3;
  transition:transform .15s, background .15s;
}
.rail-btn:hover{ transform:translateY(-50%) scale(1.08); background:var(--pink); }
.rail-btn:focus-visible{ outline:3px solid var(--blue); outline-offset:3px; }
.rail-btn.prev{ left:-10px; }
.rail-btn.next{ right:-10px; }

/* スクロール誘導 */
.scroll-cue{
  align-self:center; margin-top:8px;
  display:inline-flex; align-items:center; gap:8px;
  font-family:var(--font-latin); font-weight:600; color:var(--ink);
  background:#fff; padding:8px 18px; border-radius:999px;
  box-shadow:var(--sticker-shadow);
}
.cue-arrow{ animation:bob 1.6s ease-in-out infinite; }

/* ---------- 自己紹介 ---------- */
.about{
  max-width:760px; margin-inline:auto;
  padding:clamp(40px,9vw,110px) clamp(20px,5vw,40px) clamp(60px,10vw,120px);
}
.section-title{ text-align:center; margin:0 0 clamp(26px,5vw,46px); }
.section-title span{
  font-family:var(--font-disp); font-size:clamp(24px,5vw,40px);
  color:var(--gold); -webkit-text-stroke:3px #fff; paint-order:stroke fill;
  text-shadow:0 6px 0 rgba(255,201,60,.25), 0 8px 16px rgba(58,86,128,.22);
}
.about-list{ display:flex; flex-direction:column; gap:clamp(20px,4vw,34px); }
.about-card{
  background:#fff; border:var(--sticker-border) solid var(--line);
  border-radius:var(--sticker-radius); box-shadow:var(--sticker-shadow);
  padding:clamp(20px,4vw,32px);
  position:relative;
  opacity:0; transform:translateY(34px) rotate(-1deg);
  transition:opacity .6s ease, transform .6s cubic-bezier(.22,1,.36,1);
}
.about-card.in{ opacity:1; transform:translateY(0) rotate(0); }
.about-card:nth-child(even){ transform:translateY(34px) rotate(1deg); }
.about-card:nth-child(even).in{ transform:translateY(0) rotate(0); }
.about-tag{
  display:inline-block; font-family:var(--font-disp); font-size:.82rem;
  color:#fff; background:var(--blue); padding:4px 14px; border-radius:999px;
  border:3px solid #fff; box-shadow:0 5px 12px rgba(58,86,128,.2);
  margin-bottom:12px;
}
.about-card:nth-child(3n+2) .about-tag{ background:var(--pink); }
.about-card:nth-child(3n+3) .about-tag{ background:var(--purple); }
.about-head{ font-family:var(--font-disp); font-size:clamp(17px,3vw,23px); color:var(--ink); margin:0 0 10px; }
.about-body{ margin:0; color:var(--ink); font-weight:500; }

/* ---------- フッター ---------- */
.foot{
  position:relative; z-index:2;
  text-align:center; padding:clamp(40px,8vw,80px) 20px 60px;
  background:linear-gradient(180deg, rgba(255,255,255,0) 0%, rgba(255,255,255,.78) 60%);
}
.foot-logo{ width:min(58vw,260px); margin:0 auto 18px; filter:drop-shadow(0 10px 18px rgba(58,86,128,.2)); }
.foot-socials{ justify-content:center; margin-bottom:22px; }
.foot-note{ font-family:var(--font-latin); color:var(--ink-soft); font-size:.85rem; margin:0 0 16px; }
.totop{
  display:inline-block; font-family:var(--font-disp); font-size:.9rem; color:var(--ink);
  background:#fff; padding:9px 20px; border-radius:999px; box-shadow:var(--sticker-shadow);
}
.totop:focus-visible{ outline:3px solid var(--gold); outline-offset:3px; }

/* =====================================================================
 *  レスポンシブ
 * ===================================================================== */
@media (max-width:780px){
  .hero-inner{ grid-template-columns:1fr; justify-items:center; text-align:center; }
  .hero-copy{ display:flex; flex-direction:column; align-items:center; }
  .lead{ text-align:left; }
  .socials{ justify-content:center; }
  /* 常駐キャラはモバイルでは小さく薄く、文字の邪魔をしない */
  .resident{ width:54vw; right:-46px; bottom:-20px; opacity:.5; }
  .rail-btn{ display:none; }              /* 指でスワイプ前提 */
  .works-head{ justify-content:center; }
}
@media (max-width:480px){
  .resident{ opacity:.38; }
}

/* キーボード操作の可視フォーカス */
:focus-visible{ outline-offset:3px; }

/* モーション控えめ設定を尊重 */
@media (prefers-reduced-motion:reduce){
  *{ animation:none !important; transition:none !important; }
  html{ scroll-behavior:auto; }
  .about-card{ opacity:1; transform:none; }
}