/* 神田紗希ヴァイオリン教室 共通スタイル（全ページ） */
:root{
  --ivory:#f6f0e6; --paper:#fbf7f0; --ink:#3b2a2b; --ink2:#6e5a58;
  --bord:#6b1d2c; --bord2:#8a2d3e; --gold:#a8844e; --gold2:#c9a96e; --pink:#e8bfc2; --blush:#f3dcdc;
  --line:rgba(168,132,78,.35);
  --serif:"Shippori Mincho B1","Yu Mincho","Hiragino Mincho ProN",serif;
  --latin:"Cormorant Garamond","Times New Roman",serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{background:var(--ivory);color:var(--ink);font-family:var(--serif);font-size:16px;line-height:2;letter-spacing:.04em;overflow-x:clip}
h1,h2,h3,.quote,.catch,.vert,.wishes{word-break:auto-phrase}
img{display:block;max-width:100%}
a{color:inherit}
button,input,select,textarea{font:inherit;color:inherit}
p,li,dd,dt,td,th,figcaption{text-wrap:pretty}
h1,h2,h3{text-wrap:balance;font-weight:500}
.md-nowrap-tail{white-space:nowrap}
span.md-nowrap-tail{display:inline!important;width:auto!important;min-width:0!important;min-height:0!important;margin:0!important;padding:0!important;font:inherit!important;letter-spacing:inherit!important;color:inherit!important}
span.md-flexline{display:block!important;width:auto!important;min-width:0!important;min-height:0!important;margin:0!important;padding:0!important;font:inherit!important;letter-spacing:inherit!important;color:inherit!important}
.md-balance{text-wrap:balance}
.sp{display:none}
@media(max-width:720px){.sp{display:inline}.pc{display:none}}
.nw{white-space:nowrap}
.vh{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* 紙の粒 */
body::before{content:"";position:fixed;inset:0;pointer-events:none;z-index:0;opacity:.5;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 .45 0 0 0 0 .33 0 0 0 0 .25 0 0 0 .06 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}
main{position:relative;z-index:1}

/* ── ヘッダー ── */
.top{position:fixed;inset:0 0 auto;z-index:50;display:flex;align-items:center;justify-content:space-between;padding:18px 3.4vw;pointer-events:none;transition:background .5s,box-shadow .5s}
.top.solid,.sub-page .top{background:rgba(246,240,230,.9);-webkit-backdrop-filter:saturate(1.2);backdrop-filter:saturate(1.2);box-shadow:0 1px 0 rgba(168,132,78,.25)}
.top>*{pointer-events:auto}
.brand{font-size:15px;letter-spacing:.18em;text-decoration:none;color:var(--bord);white-space:nowrap;opacity:0;transition:opacity .6s;min-width:0;overflow:hidden;flex:0 1 auto}
.top.solid .brand,.sub-page .brand{opacity:1}
.brand small{font-family:var(--latin);font-style:italic;letter-spacing:.08em;color:var(--gold);margin-left:.6em;font-size:15px}
.tuner{display:flex;align-items:center;gap:18px;flex:none}
.tuner a.cta-s{font-size:14px;text-decoration:none;color:#fff;background:var(--bord);padding:10px 18px;border-radius:999px;letter-spacing:.12em;white-space:nowrap}
.pegs{width:46px;height:36px;border:0;background:none;cursor:pointer;position:relative}
.pegs i{position:absolute;left:4px;right:4px;background:linear-gradient(90deg,var(--gold),#e6d3a8,var(--gold));border-radius:2px}
.pegs i:nth-child(1){top:8px;height:2.2px}.pegs i:nth-child(2){top:15px;height:1.8px}.pegs i:nth-child(3){top:22px;height:1.5px}.pegs i:nth-child(4){top:29px;height:1.1px}
.pegs:hover i,.pegs.ring i{animation:wob .5s ease-out}
.pegs i:nth-child(2){animation-delay:.05s}.pegs i:nth-child(3){animation-delay:.1s}.pegs i:nth-child(4){animation-delay:.15s}
@keyframes wob{20%{transform:translateY(-1.6px)}40%{transform:translateY(1.2px)}60%{transform:translateY(-.7px)}80%{transform:translateY(.3px)}100%{transform:none}}
.sound{border:1px solid rgba(168,132,78,.5);background:rgba(251,247,240,.92);border-radius:999px;padding:9px 16px 9px 12px;font-size:14px;letter-spacing:.08em;display:flex;align-items:center;gap:8px;cursor:pointer}
.sound .bars{display:flex;gap:2px;align-items:flex-end;height:14px}
.sound .bars i{width:2px;background:var(--gold);height:4px}
.sound.on .bars i{animation:eq 1s infinite ease-in-out}
.sound.on .bars i:nth-child(2){animation-delay:.2s}.sound.on .bars i:nth-child(3){animation-delay:.4s}
@keyframes eq{0%,100%{height:4px}50%{height:14px}}

/* メニュー（調弦表） */
.menu{position:fixed;inset:0;z-index:60;background:var(--paper);display:grid;place-items:center;opacity:0;visibility:hidden;transition:opacity .45s,visibility .45s;overflow-y:auto;padding:80px 0 40px}
.menu.open{opacity:1;visibility:visible}
.menu .fl{position:absolute;left:-40px;top:-30px;width:min(420px,60vw);pointer-events:none;opacity:.9;scale:-1 1}
.menu ol{list-style:none;width:min(720px,86vw);position:relative}
.menu li{border-top:1px solid var(--line)}
.menu li:last-child{border-bottom:1px solid var(--line)}
.menu a{display:grid;grid-template-columns:64px 1fr auto;align-items:center;gap:12px;padding:18px 4px;text-decoration:none}
.menu .n{font-family:var(--latin);font-style:italic;font-size:38px;color:var(--gold);line-height:1}
.menu .t{font-size:21px;color:var(--bord);letter-spacing:.12em}
.menu .h{font-family:var(--latin);font-size:16px;color:var(--ink2);letter-spacing:.08em}
.menu .close{position:fixed;top:20px;right:3.4vw;z-index:3;display:flex;align-items:center;gap:10px;border:1.5px solid var(--bord);background:#fff;color:var(--bord);border-radius:999px;padding:9px 20px 9px 10px;font-size:15px;letter-spacing:.14em;cursor:pointer;box-shadow:0 12px 24px -14px rgba(59,42,43,.5)}
.menu .close .x{position:relative;width:28px;height:28px;border-radius:50%;background:var(--bord)}
.menu .close .x::before,.menu .close .x::after{content:"";position:absolute;left:6px;right:6px;top:12px;height:2px;background:#fff;border-radius:1px;rotate:45deg}
.menu .close .x::after{rotate:-45deg}
.menu .close:hover{background:var(--blush)}
.menu .mcta{display:flex;align-items:center;justify-content:center;gap:16px;flex-wrap:wrap;width:min(720px,86vw);margin-top:26px;text-decoration:none;background:var(--bord);color:#fff;border-radius:999px;padding:16px 24px;box-shadow:0 16px 30px -16px rgba(107,29,44,.7);position:relative}
.menu .mcta .mt{font-size:18px;letter-spacing:.14em;white-space:nowrap}
.menu .mcta .mp{font-size:14px;border-left:1px solid rgba(255,255,255,.4);padding-left:16px;white-space:nowrap}
.menu .subl{margin-top:26px;display:flex;gap:14px 28px;justify-content:center;flex-wrap:wrap;width:min(720px,86vw)}
.menu .subl a{display:inline;padding:0;font-size:16px;color:var(--ink2);border-bottom:1px solid var(--gold2)}

/* 共通の部品 */
.rv{opacity:0;translate:0 26px;transition:opacity 1s ease,translate 1.2s cubic-bezier(.2,.8,.2,1)}
.rv.in{opacity:1;translate:0 0}
.body{font-size:16px;line-height:2.15;letter-spacing:.06em}
.body p+p{margin-top:1.4em}
.kick{font-family:var(--latin);font-style:italic;color:var(--gold);letter-spacing:.12em}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:12px;text-decoration:none;border-radius:999px;padding:15px 28px;font-size:16px;letter-spacing:.12em;white-space:nowrap;border:0;cursor:pointer}
.btn.p{background:var(--bord);color:#fff;box-shadow:0 14px 30px -16px rgba(107,29,44,.6)}
.btn.o{border:1px solid rgba(107,29,44,.45);color:var(--bord);background:transparent}
.more{display:inline-flex;align-items:center;gap:10px;font-size:15px;letter-spacing:.12em;color:var(--bord);text-decoration:none;border-bottom:1px solid var(--gold2);padding-bottom:4px}
.more::after{content:"";width:22px;height:1px;background:currentColor;transition:width .3s}
.more:hover::after{width:34px}

/* 下層ページの見出し */
.ph-head{position:relative;padding:150px 7.5vw 70px;overflow:hidden}
.ph-head .fl{position:absolute;right:-60px;top:20px;width:min(520px,52vw);height:auto;pointer-events:none}
.ph-head .crumb{font-size:14px;color:var(--ink2);letter-spacing:.08em}
.ph-head .crumb a{text-decoration:none;border-bottom:1px solid var(--line)}
.ph-head .kick{display:block;font-size:clamp(18px,1.6vw,22px);margin-top:28px}
.ph-head h1{font-size:clamp(32px,4.2vw,58px);color:var(--bord);letter-spacing:.12em;line-height:1.4;margin-top:.2em;position:relative;white-space:nowrap}
.ph-head .lead{margin-top:1.2em;max-width:640px;position:relative}
.ph-head .str{display:block;height:3px;margin-top:40px;background:linear-gradient(90deg,var(--gold),#e9d8b0,var(--gold));border-radius:2px;transform-origin:0 50%;scale:0 1;transition:scale 1.4s cubic-bezier(.2,.8,.2,1) .2s}
.ready .ph-head .str{scale:1 1}

/* ── フッター：体験レッスン・お問い合わせ（タブ） ── */
.foot{position:relative;z-index:1;background:#2c1d1e;color:#efe2d3;overflow:hidden}
.foot .fl{position:absolute;left:-46px;top:-12px;width:170px;opacity:.95;pointer-events:none;rotate:-90deg}
.foot-in{position:relative;z-index:1;padding:170px 7.5vw 60px;display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:6vw;align-items:start}
.foot .kick{font-size:20px;color:var(--gold2)}
.foot h2{font-size:clamp(28px,3vw,42px);letter-spacing:.14em;color:#fff;line-height:1.5;margin:.3em 0 .6em;white-space:nowrap}
.foot .f-intro p{font-size:15px;color:#d8c6b8;line-height:2.1}
.foot .f-intro .price{margin:1.4em 0;font-family:var(--latin);font-size:46px;color:#fff;line-height:1}
.foot .f-intro .price small{font-family:var(--serif);font-size:15px;color:#d8c6b8;margin-left:.6em}
.foot .mailto{margin-top:1.6em;font-size:14px;color:#cdb9aa;word-break:break-all}
.foot .mailto a{color:#fff}
.pick{font-size:16px;letter-spacing:.12em;color:#fff;margin-bottom:12px;display:flex;flex-wrap:wrap;align-items:baseline;gap:4px 14px}
.pick small{font-size:14px;letter-spacing:.06em;color:#cdb9aa}
.tabs{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.tabs button{position:relative;display:flex;align-items:center;gap:14px;text-align:left;background:rgba(255,255,255,.04);border:1.5px solid rgba(201,169,110,.5);border-radius:14px;padding:16px 18px;font-size:17px;letter-spacing:.1em;color:#e8d8ca;cursor:pointer;transition:background .3s,border-color .3s,color .3s,translate .2s,box-shadow .3s}
.tabs button:hover{border-color:var(--pink);background:rgba(232,191,194,.1);translate:0 -2px}
.tabs button .ic{flex:none;width:44px;height:44px;border-radius:50%;display:grid;place-items:center;border:1.5px solid rgba(201,169,110,.6);color:var(--gold2);transition:.3s}
.tabs button .ic svg{width:22px;height:22px}
.tabs button .tx{display:block;line-height:1.5;min-width:0}
.tabs button small{display:block;font-family:var(--latin);font-style:italic;font-size:14px;letter-spacing:.1em;color:var(--gold2)}
.tabs button .ck{margin-left:auto;flex:none;width:22px;height:22px;border-radius:50%;border:1.5px solid rgba(201,169,110,.6);position:relative;transition:.3s}
.tabs button[aria-selected="true"]{background:var(--pink);border-color:var(--pink);color:#2c1d1e;box-shadow:0 14px 30px -16px rgba(232,191,194,.8)}
.tabs button[aria-selected="true"] small{color:var(--bord)}
.tabs button[aria-selected="true"] .ic{background:#fff;border-color:#fff;color:var(--bord)}
.tabs button[aria-selected="true"] .ck{background:var(--bord);border-color:var(--bord)}
.tabs button[aria-selected="true"] .ck::after{content:"";position:absolute;left:7px;top:3px;width:5px;height:10px;border:solid #fff;border-width:0 2px 2px 0;rotate:45deg}
.tabs button:focus-visible{outline:2px solid #fff;outline-offset:3px}
.panel{padding-top:30px;margin-top:18px;border-top:1px solid rgba(201,169,110,.3)}
.panel[hidden]{display:none}
.fgrid{display:grid;grid-template-columns:1fr 1fr;gap:18px 18px}
.fld{display:grid;gap:6px}
.fld.full,.kid.full{grid-column:1/-1}
.kid{border:1px solid rgba(232,191,194,.45);border-radius:10px;padding:16px 16px 18px;background:rgba(232,191,194,.06);animation:kidin .4s ease}
.kid[hidden]{display:none}
.kid .hintx{margin-bottom:12px;color:#e8d8ca}
@keyframes kidin{from{opacity:0;translate:0 -6px}}
.fld label,.fld .lb{font-size:15px;letter-spacing:.08em;color:#efe2d3}
.req{display:inline-block;margin-left:8px;font-size:12px;letter-spacing:.08em;background:var(--pink);color:#2c1d1e;padding:0 8px;border-radius:3px;line-height:20px;vertical-align:1px}
.opt{display:inline-block;margin-left:8px;font-size:12px;color:#bfa999}
.fld input[type=text],.fld input[type=email],.fld input[type=tel],.fld input[type=number],.fld select,.fld textarea{width:100%;background:rgba(255,255,255,.06);border:1px solid rgba(201,169,110,.35);border-radius:6px;padding:13px 14px;font-size:16px;color:#fff;transition:border-color .3s,background .3s}
.fld textarea{min-height:130px;resize:vertical;line-height:1.8}
.fld input:focus,.fld select:focus,.fld textarea:focus{outline:none;border-color:var(--pink);background:rgba(255,255,255,.1)}
.fld select option{color:#2c1d1e}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chips label{position:relative;cursor:pointer}
.chips input{position:absolute;opacity:0;pointer-events:none}
.chips span{display:inline-block;border:1px solid rgba(201,169,110,.45);border-radius:999px;padding:7px 16px;font-size:15px;color:#e8d8ca;transition:.25s;white-space:nowrap}
.chips input:checked+span{background:var(--pink);border-color:var(--pink);color:#2c1d1e}
.chips input:focus-visible+span{outline:2px solid #fff;outline-offset:2px}
.hintx{font-size:14px;color:#bfa999;line-height:1.7}
.agree{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:#d8c6b8;line-height:1.8}
.agree input{margin-top:6px;accent-color:var(--pink)}
.send{margin-top:8px;width:100%;background:var(--pink);color:#2c1d1e;font-weight:600}
.send:disabled{opacity:.5;cursor:default}
.fmsg{min-height:1.6em;font-size:15px;margin-top:10px;color:#fff;line-height:1.8}
.fmsg.err{color:#ffb3bd}
.foot-bottom{position:relative;border-top:1px solid rgba(201,169,110,.25);padding:40px 7.5vw 110px;display:flex;flex-wrap:wrap;gap:20px 40px;justify-content:space-between;align-items:flex-end}
.foot-bottom .fn{font-size:22px;letter-spacing:.16em;color:#fff}
.foot-bottom .fa{font-size:14px;color:#cdb9aa;margin-top:.4em}
.foot-bottom nav{display:flex;flex-wrap:wrap;gap:10px 22px}
.foot-bottom nav a{font-size:14px;text-decoration:none;color:#e8d8ca;border-bottom:1px solid rgba(201,169,110,.35)}
.foot-bottom small{font-family:var(--latin);letter-spacing:.14em;color:#a8968a;font-size:14px;width:100%}

@media(max-width:1000px){
  .foot-in{grid-template-columns:minmax(0,1fr);gap:40px}
}
@media(max-width:720px){
  .top{padding:12px 16px}
  .tuner a.cta-s{display:none}
  .brand{font-size:14px;letter-spacing:.08em}.brand small{display:none}.tuner{gap:10px}
  .sound .lab{display:none}.sound{padding:9px 12px}
  .menu .t{font-size:18px}.menu a{grid-template-columns:48px 1fr}.menu .n{font-size:30px}.menu .h{display:none}
  .menu .fl{width:46vw;left:-30px;top:-20px}
  .menu{padding:120px 0 60px}
  .menu .close{top:14px;right:16px;padding:9px 18px 9px 9px;font-size:15px}.menu .close .x{width:32px;height:32px}.menu .close .x::before,.menu .close .x::after{top:15px;left:8px;right:8px}
  .menu .mcta{padding:14px 18px;gap:10px}.menu .mcta{flex-direction:column;gap:2px}.menu .mcta .mt{font-size:16px}.menu .mcta .mp{font-size:13px;padding-left:0;border-left:0;opacity:.85}
  .ph-head{padding:110px 16px 50px}
  .ph-head h1{font-size:30px;letter-spacing:.08em}
  .ph-head .fl{width:62vw;right:-50px;top:40px;opacity:.85}
  .foot-in{padding:80px 16px 40px}
  .foot .fl{width:42vw;left:auto;right:-30px;top:-30px;bottom:auto;rotate:0deg;scale:1;opacity:.85}
  .foot h2{font-size:26px;letter-spacing:.08em}
  .fgrid{grid-template-columns:minmax(0,1fr)}
  .tabs{gap:8px}.tabs button{flex-direction:column;align-items:flex-start;gap:8px;padding:14px 12px;font-size:15px;letter-spacing:.04em}.tabs button .ic{width:36px;height:36px}.tabs button .ck{position:absolute;right:10px;top:12px}
  .foot-bottom{padding:30px 16px 110px}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .rv{opacity:1;translate:none}
  .ph-head .str{scale:1 1}
}

/* ══════════ C案（弓）：暗い舞台の色 ══════════ */
.theme-c{--ivory:#0c0708;--paper:#170e10;--ink:#f3e8de;--ink2:#bba79f;--bord:#eaa9b6;--bord2:#f3c4cc;--gold:#c8a46a;--gold2:#d9bd85;--pink:#eaa9b6;--blush:rgba(234,169,182,.18);--line:rgba(200,164,106,.28)}
.theme-c body,body.theme-c{background:#0c0708;color:#f3e8de}
.theme-c::before{opacity:.12}
.theme-c .top.solid,.theme-c.sub-page .top{background:rgba(12,7,8,.88);box-shadow:0 1px 0 rgba(200,164,106,.25)}
.theme-c .brand{color:#f3e8de}
.theme-c .tuner a.cta-s,.theme-c .btn.p,.theme-c .menu .mcta{background:#eaa9b6;color:#1a0d10}
.theme-c .btn.p{box-shadow:0 14px 30px -16px rgba(234,169,182,.5)}
.theme-c .btn.o{border-color:rgba(234,169,182,.5);color:#f3d3d6}
.theme-c .sound{background:rgba(23,14,16,.9);border-color:rgba(200,164,106,.45);color:#f3e8de}
.theme-c .menu{background:#140c0e}
.theme-c .menu .t{color:#fff}
.theme-c .menu .close{background:#1d1214;color:#f3d3d6;border-color:#eaa9b6}
.theme-c .menu .close .x{background:#eaa9b6}.theme-c .menu .close .x::before,.theme-c .menu .close .x::after{background:#1a0d10}
.theme-c .menu .close:hover{background:#2a1a1d}
.theme-c .menu .mcta .mp{border-left-color:rgba(26,13,16,.3)}
.theme-c .ph-head h1{color:#fff}
.theme-c .ph-head .str{background:linear-gradient(90deg,#c8a46a,#f3dcae,#c8a46a)}
.theme-c .more{color:#f3d3d6}
.theme-c .foot{background:#070405}
.theme-c img.fl,.theme-c .fl{opacity:.85}

.theme-c .lead-img p{color:#fff;text-shadow:0 2px 22px rgba(0,0,0,.75)}
.theme-c .cats button,.theme-c .try button,.theme-c .day,.theme-c .reelnav .parts button,.theme-c .rp .chap-list button,.theme-c .rp .skip{background:transparent;color:#f3e8de;border-color:rgba(234,169,182,.4)}
.theme-c .cats button[aria-pressed="true"]{background:#eaa9b6;color:#1a0d10}
.theme-c .try button b{color:#eaa9b6}
.theme-c .try button.hit{background:rgba(234,169,182,.25)}
.theme-c .search input{background:#170e10;color:#f3e8de}
.theme-c .toc6 img,.theme-c .frame{background:#170e10}
/* 音はどこでも出さないので「音を鳴らす」ボタンも出さない（A案・B案とも） */
#sound{display:none}
/* PCのメニュー下段は、5つ並んでも1行に収める */
@media (min-width:900px){.menu .subl{width:min(860px,90vw)}}