/*
Theme Name: Piano Lovers .jp
Theme URI: https://piano-lovers.jp
Author: Piano Lovers .jp
Description: Anime piano sheet music catalog theme. White/elegant design, sheet CPT, language-aware store links (EN=mymusic5/mymusicsheet, JA=kokomu/Piascore/mucome).
Version: 1.0.0
Requires PHP: 7.4
License: GNU General Public License v2 or later
Text Domain: pianolovers
*/

:root{
  --bg:#fdfcfa; --bg2:#f7f5f1; --panel:#ffffff; --line:#ece8e0;
  --gold:#b9924f; --gold-soft:#d4b478; --violet:#7c66b8;
  --ink:#2b2733; --sub:#8a8494; --easy:#3f9e72; --inter:#c88f36;
  --shadow:0 10px 30px rgba(43,39,51,.07);
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{font-family:'Inter','Hiragino Sans','Noto Sans JP',sans-serif;background:var(--bg);color:var(--ink);line-height:1.7;font-weight:300;}
img{max-width:100%;height:auto;}
a{color:var(--gold);}
.wrap{max-width:1120px;margin:0 auto;padding:0 28px;}
.serif{font-family:'Cormorant Garamond','Noto Serif JP',serif;}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(253,252,250,.85);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);}
.nav{display:flex;align-items:center;height:68px;gap:36px;}
.logo{font-family:'Cormorant Garamond','Noto Serif JP',serif;font-size:1.4rem;font-weight:600;white-space:nowrap;}
.logo a{color:var(--ink);text-decoration:none;}
.logo .dot{color:var(--gold);}
.nav .links{display:flex;gap:28px;flex:1;justify-content:center;list-style:none;}
.nav .links a{color:var(--sub);text-decoration:none;font-size:.8rem;letter-spacing:.14em;text-transform:uppercase;transition:color .2s;}
.nav .links a:hover{color:var(--gold);}
.lang-switch{font-size:.72rem;color:var(--sub);border:1px solid var(--line);border-radius:20px;padding:5px 12px;background:#fff;}
.lang-switch ul{list-style:none;display:inline;}
.lang-switch li{display:inline;margin:0 3px;}
.lang-switch a{text-decoration:none;color:var(--sub);}
.lang-switch .current-lang a{color:var(--gold);font-weight:500;}

/* hero */
.hero{position:relative;padding:92px 0 0;text-align:center;overflow:hidden;
  background:radial-gradient(ellipse 80% 60% at 50% -10%,rgba(124,102,184,.10),transparent 60%),
             radial-gradient(ellipse 55% 45% at 82% 15%,rgba(185,146,79,.08),transparent 60%),var(--bg);}
.kicker{font-size:.72rem;letter-spacing:.34em;text-transform:uppercase;color:var(--gold);margin-bottom:20px;font-weight:500;}
.hero h1{font-family:'Cormorant Garamond','Noto Serif JP',serif;font-weight:500;font-size:clamp(2.2rem,5vw,3.6rem);line-height:1.18;max-width:760px;margin:0 auto 18px;}
.hero h1 em{font-style:italic;color:var(--violet);}
.hero .lead{color:var(--sub);max-width:540px;margin:0 auto 36px;font-size:.96rem;}
.searchbar{max-width:580px;margin:0 auto;display:flex;background:#fff;border:1px solid var(--line);border-radius:40px;overflow:hidden;box-shadow:var(--shadow);}
.searchbar input{flex:1;border:0;background:transparent;color:var(--ink);padding:16px 26px;font-size:.95rem;outline:none;}
.searchbar input::placeholder{color:#b6b0c0;}
.searchbar button{border:0;background:linear-gradient(135deg,#caa25d,var(--gold));color:#fff;font-weight:600;font-size:.84rem;letter-spacing:.1em;padding:0 32px;cursor:pointer;}
.searchbar button:hover{filter:brightness(1.07);}
.hero .tags{margin:20px 0 60px;font-size:.8rem;color:#b0aab9;}
.hero .tags a{color:var(--sub);text-decoration:none;margin:0 8px;border-bottom:1px solid var(--line);padding-bottom:1px;}
.hero .tags a:hover{color:var(--gold);}

/* piano keys */
.keys{display:flex;height:78px;position:relative;max-width:1120px;margin:0 auto;padding:0 28px;}
.wk{flex:1;background:linear-gradient(180deg,#ffffff 0%,#f0ece4 100%);border:1px solid #ddd6ca;border-bottom:0;border-radius:4px 4px 0 0;position:relative;box-shadow:inset 0 -6px 10px rgba(43,39,51,.04);}
.bk{position:absolute;top:0;width:58%;height:55%;background:linear-gradient(180deg,#3a3444,#231f2c);border-radius:0 0 3px 3px;left:71%;z-index:2;box-shadow:0 3px 6px rgba(43,39,51,.28);}

/* sections */
.section{padding:72px 0 0;}
.sec-head{text-align:center;margin-bottom:40px;}
.sec-head .kicker{margin-bottom:8px;}
.sec-head h2{font-family:'Cormorant Garamond','Noto Serif JP',serif;font-weight:500;font-size:1.9rem;}
.sec-head p{color:var(--sub);font-size:.9rem;margin-top:6px;}

/* sheet cards */
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.card{background:var(--panel);border:1px solid var(--line);border-radius:16px;overflow:hidden;transition:transform .25s,box-shadow .25s,border-color .25s;box-shadow:0 4px 14px rgba(43,39,51,.05);}
.card:hover{transform:translateY(-5px);box-shadow:0 18px 38px rgba(43,39,51,.12);border-color:var(--gold-soft);}
.card .thumb{display:block;aspect-ratio:16/9;background:var(--bg2) center/cover no-repeat;position:relative;}
.card .thumb::after{content:"▶";position:absolute;right:10px;bottom:8px;width:30px;height:30px;border-radius:50%;background:rgba(255,255,255,.88);display:flex;align-items:center;justify-content:center;font-size:.65rem;color:var(--gold);border:1px solid rgba(185,146,79,.35);}
.card .body{padding:16px 18px 18px;}
.card h3{font-size:.98rem;font-weight:500;margin-bottom:3px;}
.card h3 a{color:var(--ink);text-decoration:none;}
.card .anime{font-size:.78rem;color:var(--sub);margin-bottom:12px;}
.badge{display:inline-block;font-size:.66rem;font-weight:500;letter-spacing:.14em;text-transform:uppercase;padding:3px 12px;border-radius:12px;margin-bottom:12px;}
.b-easy{color:var(--easy);background:rgba(63,158,114,.08);border:1px solid rgba(63,158,114,.25);}
.b-inter{color:var(--inter);background:rgba(200,143,54,.08);border:1px solid rgba(200,143,54,.28);}
.b-adv{color:#b0524f;background:rgba(176,82,79,.07);border:1px solid rgba(176,82,79,.28);}
.b-tag{color:var(--violet);background:rgba(124,102,184,.07);border:1px solid rgba(124,102,184,.25);}
.card .cta{display:block;text-align:center;color:var(--gold);border:1px solid var(--gold-soft);text-decoration:none;font-size:.78rem;letter-spacing:.08em;padding:9px 0;border-radius:10px;font-weight:500;}
.card .cta:hover{background:var(--gold);color:#fff;}
.more{text-align:center;margin-top:34px;}
.more a{color:var(--sub);text-decoration:none;font-size:.8rem;letter-spacing:.2em;text-transform:uppercase;border-bottom:1px solid var(--line);padding-bottom:3px;}
.more a:hover{color:var(--gold);}

/* anime chips */
.anime-row{display:grid;grid-template-columns:repeat(6,1fr);gap:16px;}
.anime-chip{background:#fff;border:1px solid var(--line);border-radius:14px;text-align:center;padding:20px 10px 16px;text-decoration:none;color:var(--ink);transition:border-color .2s,transform .2s;}
.anime-chip:hover{border-color:var(--gold-soft);transform:translateY(-3px);}
.anime-chip .t{font-size:.85rem;}
.anime-chip .n{font-size:.7rem;color:var(--sub);display:block;margin-top:4px;}

/* levels */
.levels{display:grid;grid-template-columns:1fr 1fr;gap:22px;}
.level-card{position:relative;border-radius:18px;padding:34px 32px;text-decoration:none;border:1px solid var(--line);transition:border-color .25s,transform .25s,box-shadow .25s;}
.level-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);}
.lv-easy{background:linear-gradient(140deg,#f2faf6,#e3f3ea);}
.lv-inter{background:linear-gradient(140deg,#fdf7ec,#f8ecd5);}
.level-card .lk{font-size:.66rem;letter-spacing:.3em;text-transform:uppercase;margin-bottom:10px;display:block;font-weight:500;}
.lv-easy .lk{color:var(--easy);}
.lv-inter .lk{color:var(--inter);}
.level-card h3{font-family:'Cormorant Garamond','Noto Serif JP',serif;font-size:1.45rem;font-weight:500;color:var(--ink);margin-bottom:6px;}
.level-card p{font-size:.86rem;color:var(--sub);max-width:400px;}

/* youtube band */
.band{position:relative;border-radius:22px;padding:56px 40px;text-align:center;border:1px solid var(--line);
  background:radial-gradient(ellipse 80% 120% at 50% -20%,rgba(124,102,184,.10),transparent 60%),linear-gradient(160deg,#ffffff,#f6f2ea);box-shadow:var(--shadow);margin-top:72px;}
.band h2{font-family:'Cormorant Garamond','Noto Serif JP',serif;font-weight:500;font-size:1.9rem;margin-bottom:8px;}
.band h2 em{font-style:italic;color:var(--violet);}
.band p{color:var(--sub);max-width:480px;margin:0 auto 26px;font-size:.92rem;}
.band .btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;}
.btn-gold{background:linear-gradient(135deg,#caa25d,var(--gold));color:#fff;text-decoration:none;font-weight:600;font-size:.85rem;letter-spacing:.06em;padding:13px 28px;border-radius:30px;}
.btn-line{background:#fff;border:1px solid var(--gold-soft);color:var(--gold);text-decoration:none;font-weight:600;font-size:.85rem;letter-spacing:.06em;padding:13px 28px;border-radius:30px;}

/* single sheet */
.crumbs{font-size:.76rem;color:var(--sub);padding:18px 0 0;}
.crumbs a{color:var(--sub);text-decoration:none;}
.crumbs a:hover{color:var(--gold);}
.crumbs .sep{margin:0 6px;color:#c9c3d1;}
.layout{display:grid;grid-template-columns:1fr 320px;gap:40px;padding:22px 0 70px;}
.entry-title{font-family:'Cormorant Garamond','Noto Serif JP',serif;font-weight:500;font-size:2rem;line-height:1.25;margin-bottom:6px;}
.h1sub{color:var(--sub);font-size:.94rem;margin-bottom:16px;}
.h1sub b{color:var(--ink);font-weight:500;}
.badges{margin-bottom:20px;}
.badges .badge{margin-right:8px;}
.video-embed{position:relative;aspect-ratio:16/9;border-radius:16px;overflow:hidden;box-shadow:var(--shadow);margin-bottom:10px;background:#000;}
.video-embed iframe{position:absolute;inset:0;width:100%;height:100%;border:0;}
.caption{font-size:.74rem;color:var(--sub);margin-bottom:32px;}
.single-content h2{font-family:'Cormorant Garamond','Noto Serif JP',serif;font-weight:500;font-size:1.45rem;margin:34px 0 12px;}
.single-content p{font-size:.93rem;color:#4a4556;margin-bottom:14px;}
table.facts{width:100%;border-collapse:collapse;font-size:.86rem;margin:10px 0 6px;}
.facts th{text-align:left;font-weight:500;color:var(--sub);padding:9px 14px;width:38%;border-bottom:1px solid var(--line);}
.facts td{padding:9px 14px;border-bottom:1px solid var(--line);}

/* sidebar buy */
.sidebar{position:sticky;top:84px;align-self:start;display:flex;flex-direction:column;gap:20px;}
.buy{background:#fff;border:1px solid var(--gold-soft);border-radius:18px;padding:24px 22px;box-shadow:0 6px 22px rgba(185,146,79,.12);}
.buy .k{font-size:.66rem;letter-spacing:.28em;text-transform:uppercase;color:var(--gold);font-weight:500;margin-bottom:8px;}
.buy h3{font-family:'Cormorant Garamond','Noto Serif JP',serif;font-size:1.25rem;font-weight:500;margin-bottom:14px;}
.buy a.main{display:block;text-align:center;background:linear-gradient(135deg,#caa25d,var(--gold));color:#fff;text-decoration:none;font-weight:600;font-size:.88rem;padding:13px 6px;border-radius:12px;margin-bottom:10px;}
.buy a.alt{display:block;text-align:center;background:#fff;border:1px solid var(--line);color:var(--ink);text-decoration:none;font-size:.82rem;padding:11px 6px;border-radius:12px;margin-bottom:10px;}
.buy .note{font-size:.7rem;color:var(--sub);line-height:1.5;margin-top:4px;}
.side-box{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px 20px;}
.side-box h4{font-size:.7rem;letter-spacing:.22em;text-transform:uppercase;color:var(--gold);font-weight:500;margin-bottom:12px;}
.rel{display:flex;gap:12px;align-items:center;padding:8px 0;border-bottom:1px dashed var(--line);text-decoration:none;}
.rel:last-child{border-bottom:0;}
.rel img{flex:0 0 62px;width:62px;height:40px;object-fit:cover;border-radius:8px;}
.rel b{display:block;font-size:.82rem;font-weight:500;color:var(--ink);line-height:1.35;}
.rel span{font-size:.7rem;color:var(--sub);}

/* archive */
.archive-head{padding:44px 0 8px;text-align:center;}
.archive-head h1{font-family:'Cormorant Garamond','Noto Serif JP',serif;font-weight:500;font-size:2rem;}
.archive-head p{color:var(--sub);font-size:.9rem;margin-top:4px;}
.filterbar{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;padding:18px 0 34px;}
.filterbar a{font-size:.78rem;color:var(--sub);text-decoration:none;border:1px solid var(--line);background:#fff;border-radius:20px;padding:6px 16px;}
.filterbar a.on,.filterbar a:hover{color:var(--gold);border-color:var(--gold-soft);}
.pagination{display:flex;gap:8px;justify-content:center;padding:40px 0;}
.pagination .page-numbers{border:1px solid var(--line);background:#fff;color:var(--sub);text-decoration:none;border-radius:10px;padding:8px 14px;font-size:.85rem;}
.pagination .current,.pagination .page-numbers:hover{color:var(--gold);border-color:var(--gold-soft);}

/* blog */
.post-body{max-width:760px;margin:0 auto;padding:30px 0 70px;}
.post-body h1{font-family:'Cormorant Garamond','Noto Serif JP',serif;font-weight:500;font-size:2rem;margin-bottom:20px;}
.post-body h2{font-family:'Cormorant Garamond','Noto Serif JP',serif;font-weight:500;font-size:1.5rem;margin:32px 0 12px;}
.post-body p{font-size:.95rem;color:#4a4556;margin-bottom:16px;}
.post-body img{border-radius:12px;}

/* footer */
.site-footer{margin-top:90px;border-top:1px solid var(--line);background:var(--bg2);padding:52px 0 36px;font-size:.84rem;}
.site-footer .cols{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:36px;}
.site-footer h4{font-size:.7rem;letter-spacing:.24em;text-transform:uppercase;color:var(--gold);font-weight:500;margin-bottom:14px;}
.site-footer p{color:var(--sub);max-width:300px;}
.site-footer a{color:var(--sub);text-decoration:none;display:block;margin-bottom:8px;}
.site-footer a:hover{color:var(--gold);}
.foot-logo{font-family:'Cormorant Garamond','Noto Serif JP',serif;font-size:1.25rem;color:var(--ink);margin-bottom:10px;}
.foot-logo .dot{color:var(--gold);}
.copyright{text-align:center;color:#b0aab9;font-size:.72rem;margin-top:40px;}

@media(max-width:900px){
  .grid{grid-template-columns:repeat(2,1fr);}
  .anime-row{grid-template-columns:repeat(3,1fr);}
  .levels{grid-template-columns:1fr;}
  .layout{grid-template-columns:1fr;}
  .sidebar{position:static;}
  .site-footer .cols{grid-template-columns:1fr 1fr;}
  .nav .links{display:none;}
  .keys{height:56px;}
}