/* TAMBAHAN: progress scroll, confetti, tilt, halaman Pesan, tombol musik, a11y */
.gos{grid-template-columns:repeat(auto-fit,minmax(230px,1fr))}
.go.s{background:linear-gradient(140deg,#B07BDB,#E7A6D8)}
#sp{position:fixed;inset:0 0 auto 0;height:3px;z-index:60;transform-origin:0 50%;transform:scaleX(0);background:var(--grad,linear-gradient(90deg,#4B4CB0,#8F6BD8,#D39BDB));pointer-events:none}
.cf{position:fixed;top:0;left:0;width:9px;height:14px;border-radius:2px;z-index:90;pointer-events:none;will-change:transform,opacity}
.ms img:focus-visible,.av img:focus-visible,.btn:focus-visible,.dock a:focus-visible,.dock button:focus-visible,.go:focus-visible,.ac:focus-visible{outline:3px solid #8F6BD8;outline-offset:3px}
.po{transition:transform .45s cubic-bezier(.2,.8,.2,1),box-shadow .45s}
@media (hover:hover){.po:hover{transform:rotate(0deg) translateY(-6px) scale(1.03);z-index:2}}
.tl{position:fixed;right:14px;top:calc(14px + env(safe-area-inset-top,0px));z-index:61;width:44px;height:44px;border-radius:50%;border:1.5px solid rgba(75,76,176,.25);background:rgba(255,255,255,.82);backdrop-filter:blur(10px);color:#4B4CB0;display:grid;place-items:center;cursor:pointer;box-shadow:0 8px 20px -10px rgba(75,76,176,.6);transition:transform .3s}
.tl:active{transform:scale(.9)}.tl[hidden]{display:none}.tl svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.tl.on{background:linear-gradient(135deg,#4B4CB0,#8F6BD8);color:#fff}
.tl.on::after{content:"";position:absolute;inset:-5px;border-radius:50%;border:2px solid #8F6BD8;opacity:0;animation:tlp 1.8s infinite}
@keyframes tlp{0%{opacity:.7;transform:scale(.9)}100%{opacity:0;transform:scale(1.35)}}
.ks{display:grid;gap:14px;margin-top:18px}
.kf{display:grid;gap:10px;padding:18px;border-radius:24px;background:rgba(255,255,255,.8);box-shadow:0 18px 40px -22px rgba(75,76,176,.5)}
.kf input,.kf textarea{width:100%;font:inherit;font-size:16px;padding:13px 16px;border-radius:16px;border:1.5px solid rgba(75,76,176,.18);background:#fff;color:inherit;resize:vertical}
.kf textarea{min-height:96px}.kf .rw{display:flex;gap:10px;flex-wrap:wrap;align-items:center}.kf small{opacity:.65}
.kc{padding:18px 20px;border-radius:22px;background:#fff;box-shadow:0 14px 34px -22px rgba(75,76,176,.55);border:1px solid rgba(143,107,216,.15)}
.kc p{margin:0 0 10px;line-height:1.55}.kc b{color:#4B4CB0}.kc small{display:block;opacity:.55;margin-top:2px}
.kc.me{background:linear-gradient(140deg,#F4ECFF,#fff)}
.kc button{all:unset;cursor:pointer;font-size:12px;opacity:.55;margin-left:10px;text-decoration:underline}
.cdn{display:flex;gap:10px;justify-content:center;margin:18px 0 0;flex-wrap:wrap}
.cdn div{min-width:64px;padding:10px 12px;border-radius:18px;background:rgba(255,255,255,.7);text-align:center;box-shadow:0 10px 24px -16px rgba(75,76,176,.6)}
.cdn b{display:block;font-size:22px;color:#4B4CB0;font-variant-numeric:tabular-nums}.cdn span{font-size:11px;letter-spacing:.08em;text-transform:uppercase;opacity:.6}
@media (prefers-reduced-motion:reduce){#sp{display:none}.po,.tl.on::after{animation:none;transition:none}}

/* ===== PESAN UNTUK SISWA ===== */
.sc[data-k]{cursor:pointer;transition:transform .35s var(--ez)}.sc[data-k]:active{transform:scale(.97)}
.sc[data-k]:focus-visible{outline:3px solid #8F6BD8;outline-offset:6px;border-radius:26px}
.sc[data-k] .nm::after{content:"Tekan untuk kirim pesan";display:block;margin-top:5px;font-size:12px;color:var(--pur);opacity:.85}
.sm[hidden]{display:none}
.sm{position:fixed;inset:0;z-index:55;background:rgba(42,40,120,.5);display:flex;align-items:flex-end;justify-content:center;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}
.sm-s{position:relative;width:min(560px,100%);max-height:90dvh;overflow-y:auto;overscroll-behavior:contain;background:#fff;border-radius:28px 28px 0 0;padding:22px 18px calc(22px + env(safe-area-inset-bottom,0px));display:grid;gap:14px;align-content:start;animation:smUp .45s var(--ez)}
@keyframes smUp{from{transform:translateY(40px);opacity:0}}
@media(min-width:600px){.sm{align-items:center}.sm-s{border-radius:28px;max-height:86dvh}}
.sm-x{position:absolute;top:12px;right:12px;width:40px;height:40px;border:0;border-radius:50%;background:var(--l1);color:var(--ind);display:grid;place-items:center;cursor:pointer}
.sm-top{display:flex;align-items:center;gap:14px;padding-right:44px}
.sm-top h3{margin:0;font:700 21px/1.2 var(--disp);color:var(--deep)}.sm-top p{margin:4px 0 0;font-size:13px;color:var(--mut)}
.sm-av{all:unset;position:relative;flex:none;width:76px;height:76px;border-radius:22px;overflow:hidden;background:var(--grad);cursor:zoom-in;display:grid;place-items:center;box-shadow:var(--sh)}
.sm-av .in{color:#fff;font:700 26px var(--disp)}.sm-av img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.sm-av img:not([src]){display:none}
.sm-go{justify-content:center;width:100%;padding:15px 22px;font-size:16px}
.sm-f{display:grid;gap:10px;padding:14px;border-radius:22px;background:var(--l1);position:relative}
.sm-f input,.sm-f textarea{width:100%;font:inherit;font-size:16px;padding:13px 16px;border-radius:16px;border:1.5px solid rgba(75,76,176,.18);background:#fff;color:var(--ink);resize:vertical}
.sm-f textarea{min-height:104px}.sm-f .rw{display:flex;gap:8px;flex-wrap:wrap;align-items:center}.sm-f .rw small{margin-left:auto;opacity:.65}
.sm-f .btn{padding:12px 20px}.sm-f .btn:disabled{opacity:.6}
.sm-err{margin:0;color:#B3261E;font-size:14px}
.sm-h{display:flex;justify-content:space-between;align-items:baseline;margin-top:4px}.sm-h b{font:700 16px var(--disp);color:var(--deep)}.sm-h span{font-size:13px;color:var(--mut)}
#sml{display:grid;gap:10px}
.sm-m{padding:14px 16px;border-radius:18px;background:var(--l1)}
.sm-m p{margin:0 0 8px;line-height:1.55;color:var(--ink);overflow-wrap:anywhere;white-space:pre-wrap}
.sm-m footer{display:flex;justify-content:space-between;gap:10px;font-size:13px}.sm-m b{color:var(--ind)}.sm-m time{color:var(--mut)}
.sm-e{margin:6px 0;text-align:center;color:var(--mut)}
.sm-note{margin:0;font-size:12px;color:var(--mut);text-align:center}
.sm-f[hidden],.sm-go[hidden],.sm-err[hidden]{display:none}

/* ===== anonim, animasi, responsif ===== */
.sm-an{display:flex;align-items:center;gap:12px;padding:12px 14px;border-radius:16px;background:#fff;border:1.5px solid rgba(75,76,176,.14);cursor:pointer;transition:border-color .3s,background .3s}
.sm-an input{position:absolute;opacity:0;width:0;height:0}
.sm-an b{display:block;font-size:15px;color:var(--deep)}.sm-an small{display:block;margin-top:2px;font-size:12px;color:var(--mut);opacity:1}
.sm-an .sw{flex:none;width:46px;height:28px;border-radius:99px;background:#CFC6EA;position:relative;transition:background .35s var(--ez)}
.sm-an .sw::after{content:"";position:absolute;top:3px;left:3px;width:22px;height:22px;border-radius:50%;background:#fff;box-shadow:0 2px 6px rgba(42,40,120,.3);transition:transform .4s var(--ez)}
.sm-an input:checked+.sw{background:var(--grad)}.sm-an input:checked+.sw::after{transform:translateX(18px)}
.sm-an:has(input:checked){border-color:var(--pur);background:#FBF8FF}
.sm-an:has(input:focus-visible){outline:3px solid #8F6BD8;outline-offset:2px}
#smnm{transition:opacity .3s,max-height .4s var(--ez),padding .4s var(--ez),margin .4s var(--ez);max-height:60px}
.sm-f.anon #smnm{opacity:0;max-height:0;padding-top:0;padding-bottom:0;margin:-5px 0;border-width:0;pointer-events:none}
.sm-f:not([hidden]){animation:smIn .45s var(--ez)}
@keyframes smIn{from{opacity:0;transform:translateY(10px) scale(.98)}}
.sm-m{display:flex;gap:12px;align-items:flex-start;animation:smMsg .55s var(--ez) both}
.sm-m>div{min-width:0;flex:1}
@keyframes smMsg{from{opacity:0;transform:translateY(14px) scale(.97)}}
.sm-m.nw{animation:smNew .8s var(--ez) both;box-shadow:0 0 0 2px var(--pur),0 14px 30px -14px rgba(143,107,216,.7)}
@keyframes smNew{0%{opacity:0;transform:translateY(-14px) scale(.94)}55%{transform:scale(1.025)}100%{opacity:1;transform:none}}
.sm-i{flex:none;width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:var(--grad);color:#fff;font:700 14px var(--disp)}
.sm-m.an .sm-i{background:#8D89C9}.sm-m.an footer b{color:var(--mut);font-style:italic}
.sm-go svg{animation:smBeat 1.8s ease-in-out infinite}
@keyframes smBeat{0%,60%,100%{transform:scale(1)}20%{transform:scale(1.25)}40%{transform:scale(1.05)}}
.sm-x{transition:transform .35s var(--ez)}.sm-x:hover{transform:rotate(90deg)}
.sm-av{transition:transform .4s var(--ez)}.sm-av:hover{transform:rotate(-4deg) scale(1.05)}
.sm{animation:smFade .3s ease both}@keyframes smFade{from{opacity:0}}
.sc[data-k] .av{transition:transform .45s var(--ez),box-shadow .45s}
.sc[data-k]:hover .av{transform:translateY(-6px);box-shadow:0 26px 40px -20px rgba(75,76,176,.65)}
@media(hover:none){.sc[data-k]:hover .av{transform:none}}
/* desktop & tablet: grid teman lebih lebar, lembar pesan jadi dialog di tengah */
@media(min-width:700px){.sm-s{padding:26px 26px 26px;gap:16px}.sm-top h3{font-size:24px}.sm-av{width:88px;height:88px}}
@media(min-width:1024px){.sm-s{width:min(620px,92vw)}.sm-go:hover{transform:translateY(-2px)}}
@media(max-width:380px){.sm-top h3{font-size:18px}.sm-av{width:64px;height:64px}.sm-f .rw small{width:100%;margin:0}}
@media(max-height:520px){.sm{align-items:stretch}.sm-s{max-height:100dvh;border-radius:0}}
@media(prefers-reduced-motion:reduce){.sm,.sm-s,.sm-f,.sm-m,.sm-go svg{animation:none!important}.sm-an .sw,.sm-an .sw::after,#smnm{transition:none}}