/* Colour and light belong to these two entrance pages only. */
.luminous-page{color-scheme:light;--bg:#f7f2e8;--ink:#283732;--muted:#5b665f;--faint:#6b766e;--line:#354e3926;--accent:#87622d;--accent-ink:#fff;--surface:#fffcf0ed;--raised:#ffffff85;--danger:#a83827;min-height:100svh;isolation:isolate;background:var(--bg)}
.luminous-page::before,.luminous-page::after{content:'';position:fixed;inset:0;z-index:-1;pointer-events:none}
.music-page::before{background:radial-gradient(ellipse at 90% 4%,#efad569c,transparent 49%),radial-gradient(ellipse at 7% 61%,#c2d6b88c,transparent 48%),radial-gradient(ellipse at 80% 97%,#f4d89ec9,transparent 50%),linear-gradient(135deg,#fff9ed,#f4ead6 55%,#eff2df)}
.music-page::after{inset:-30% -25%;opacity:.36;background:repeating-radial-gradient(ellipse at 87% 22%,transparent 0 54px,#fffaf2b3 55px 56px,transparent 57px 89px);mask-image:linear-gradient(125deg,transparent 20%,#000 60%,transparent 95%);-webkit-mask-image:linear-gradient(125deg,transparent 20%,#000 60%,transparent 95%);transform:rotate(-12deg)}
.games-page{--bg:#eaf3f4;--ink:#223d48;--muted:#4d6770;--faint:#5e7882;--line:#254d6326;--accent:#296a7c;--surface:#f5fbffed}
.games-page::before{background:radial-gradient(ellipse at 4% 5%,#83d8e7b3,transparent 46%),radial-gradient(ellipse at 97% 23%,#ffb47fc9,transparent 45%),radial-gradient(ellipse at 26% 95%,#abb9ef73,transparent 49%),linear-gradient(140deg,#ecf9f8,#f7f0e6 48%,#e5eef9)}
.games-page::after{opacity:.4;background:linear-gradient(32deg,transparent 44%,#ffffff9c 44.1%,transparent 44.3%),linear-gradient(145deg,transparent 68%,#ffffffa3 68.1%,transparent 68.3%),radial-gradient(ellipse at 100% 0,transparent 48%,#ffffff80 48.1%,transparent 48.3%)}
.luminous-page .site-header{border-color:var(--line)}
.luminous-page .sub-hero h1,.games-page main>h1{color:var(--ink);text-shadow:0 2px 24px #ffffff65}
.music-page .room,.music-page .room.open{border:1px solid #ffffffba;border-radius:24px;background:linear-gradient(135deg,#ffffff80,#ffffff35);box-shadow:inset 0 1px 0 #fffffff0,0 14px 45px #6e5c3310;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);transition:background .3s,border-color .3s,box-shadow .3s}
.music-page .room.open:hover{background:linear-gradient(135deg,#ffffffb3,#ffffff50);border-color:#ffffff;box-shadow:inset 0 1px #fff,0 18px 48px #6e5c331c}
.music-page .room:nth-child(2){background:linear-gradient(135deg,#fff5dc85,#ffffff40)}
.music-page .room:nth-child(3){background:linear-gradient(135deg,#e4efd675,#ffffff40)}
.music-page .room:nth-child(4){background:linear-gradient(135deg,#f5d9bd70,#ffffff40)}
.music-page .frequency-lines{opacity:.5;right:30px}
.music-page .room .arrow{color:var(--accent)}
.games-page .duel-card{border:1px solid #ffffffc4;border-radius:28px;background:linear-gradient(115deg,#ffffff70,#ffffff4d);box-shadow:inset 0 1px #fff,0 18px 55px #41637c14;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);transition:box-shadow .3s,border-color .3s}
.games-page .duel-card:hover{border-color:#fff;box-shadow:inset 0 1px #fff,0 20px 60px #41637c26}
.games-page .enter{background:#ffffff85;color:#235464;border:1px solid #ffffffd9;box-shadow:inset 0 1px #fff,0 5px 18px #315c6b0c}
.games-page .art{background:linear-gradient(145deg,#a9d0cb,#729e9c)}
.luminous-page .theme-menu{box-shadow:0 20px 70px #354c3826}
.luminous-page .site-footer{border-color:var(--line)}
/* An explicitly chosen night appearance keeps each page's own colours. */
[data-theme=night] .luminous-page{color-scheme:dark;--bg:#172423;--ink:#f1f3ea;--muted:#bcc9c2;--faint:#a5b4ac;--line:#ffffff26;--accent:#e6c88b;--surface:#22302eed;--raised:#ffffff15}
[data-theme=night] .music-page::before{background:radial-gradient(ellipse at 95% 0%,#a579414d,transparent 55%),radial-gradient(ellipse at 5% 80%,#5a79644d,transparent 55%),#172423}
[data-theme=night] .games-page::before{background:radial-gradient(ellipse at 5% 0%,#32869959,transparent 52%),radial-gradient(ellipse at 100% 30%,#b6775340,transparent 50%),#162733}
[data-theme=night] .luminous-page::after{opacity:.08}
[data-theme=night] .music-page .room,[data-theme=night] .games-page .duel-card{background:linear-gradient(135deg,#ffffff0d,#ffffff05);border-color:#ffffff30;box-shadow:inset 0 1px #ffffff30,0 14px 45px #00000015}
[data-theme=night] .games-page .enter{color:#e6f5fa;background:#ffffff12;border-color:#ffffff35;box-shadow:none}
@media(max-width:760px){.music-page .room{border-radius:22px}.games-page .duel-card{border-radius:24px}.luminous-page::after{opacity:.25}[data-theme=night] .luminous-page::after{opacity:.06}}