/* ============================================================
   Ruang Belajar (tema41) — Undangan Workshop & Pelatihan Kreatif
   Palet: kertas krem + terracotta + mustard + teal
   ============================================================ */
:root{
  --rb-bg:#FDF8EF; --rb-bg2:#F7EEDF; --rb-paper:#FFFFFF;
  --rb-terra:#C75B39; --rb-must:#E3A33A; --rb-teal:#256B63;
  --rb-ink:#2C2A26; --rb-mut:#7A7266; --rb-line:#E6D9C5;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--rb-bg);color:var(--rb-ink);
  font-family:'Plus Jakarta Sans',system-ui,-apple-system,'Segoe UI',sans-serif;
  font-size:15.5px;line-height:1.72;-webkit-font-smoothing:antialiased}
body.lock{overflow:hidden}
img{max-width:100%;display:block}
a{color:inherit}
.container{width:100%;max-width:560px;margin:0 auto;padding:0 20px}
.sec{position:relative;padding:60px 0}
.sec.tint{background:linear-gradient(180deg,#FBF3E6,#F7EEDF)}
.sec.last{padding-bottom:118px}
.sec-head{text-align:center;margin-bottom:26px}
.sec-label{display:inline-block;font-size:10px;font-weight:700;letter-spacing:.22em;text-transform:uppercase;
  color:var(--rb-terra);background:#FBEDE4;border-radius:100px;padding:6px 13px}
.sec-title{font-family:'Fraunces',Georgia,serif;font-weight:700;font-size:23px;margin:13px 0 0;letter-spacing:-.2px}
.sec-line{margin:12px auto 0;display:flex;align-items:center;justify-content:center;gap:8px}
.sec-line i{width:44px;height:2px;background:linear-gradient(90deg,transparent,var(--rb-terra),var(--rb-must),transparent)}

.sr{opacity:0;transform:translateY(20px);transition:opacity .7s ease,transform .7s ease}
.sr.in{opacity:1;transform:none}
.d1{transition-delay:.08s}.d2{transition-delay:.16s}.d3{transition-delay:.24s}

/* ---------------- COVER ---------------- */
#cover{position:fixed;inset:0;z-index:60;overflow:hidden;
  background:radial-gradient(circle at 20% 12%,#FFF9EF,#F7EEDF 55%,#EFE2CD)}
.cv-paper{position:absolute;inset:0;
  background-image:linear-gradient(rgba(199,91,57,.055) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(37,107,99,.05) 1px,transparent 1px);
  background-size:26px 26px}
.cv-tape{position:absolute;width:104px;height:30px;background:rgba(227,163,58,.42);
  box-shadow:0 3px 8px rgba(0,0,0,.06)}
.cv-tape.t1{top:44px;left:-16px;transform:rotate(-24deg)}
.cv-tape.t2{bottom:74px;right:-18px;transform:rotate(-16deg);background:rgba(37,107,99,.32)}
.cv-note{position:absolute;z-index:3;font-family:'Fraunces',Georgia,serif;font-weight:600;font-size:11px;
  line-height:1.3;padding:8px 9px;border-radius:4px;box-shadow:0 10px 20px -12px rgba(44,42,38,.6);white-space:nowrap}
.cv-note.n1{top:-16px;right:-30px;background:#FDE7A9;transform:rotate(7deg)}
.cv-note.n2{bottom:-14px;right:-26px;background:#FBE1D5;transform:rotate(-6deg)}
.cv-note.n3{top:74px;left:-34px;background:#D8EAE2;transform:rotate(5deg)}
.cv-doodle{position:absolute;bottom:34px;left:-4px;width:80px;height:80px;opacity:.55}
.cover-in{position:relative;z-index:2;height:100%;display:flex;flex-direction:column;
  align-items:center;justify-content:center;text-align:center;padding:34px 24px;gap:8px}
.cv-badge{font-size:10px;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--rb-teal);
  background:rgba(37,107,99,.1);border-radius:100px;padding:8px 15px}
.cv-photo{width:186px;height:186px;margin:14px 0 4px;background:#fff;padding:9px 9px 26px;border-radius:3px;
  box-shadow:0 20px 40px -18px rgba(44,42,38,.55);transform:rotate(-2.4deg);position:relative}
.cv-photo:after{content:"";position:absolute;top:-11px;left:50%;transform:translateX(-50%) rotate(-4deg);
  width:82px;height:24px;background:rgba(227,163,58,.5)}
.cv-photo img{width:100%;height:100%;object-fit:cover;border-radius:2px}
#cover h1.cover-title{font-family:'Fraunces',Georgia,serif;font-weight:700;font-size:25px;line-height:1.26;
  margin:16px 0 2px;max-width:330px;letter-spacing:-.3px}
.cover-sub{font-size:11.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--rb-terra)}
.cover-date{margin-top:12px;font-family:'Fraunces',Georgia,serif;font-size:15px;font-weight:600;
  border-bottom:2px dotted var(--rb-line);padding-bottom:5px}
.cover-venue{font-size:12.5px;color:var(--rb-mut)}
.cover-to{margin-top:16px;font-size:11.5px;color:var(--rb-mut)}
.cover-to b{display:block;font-family:'Fraunces',Georgia,serif;font-size:17px;font-weight:700;color:var(--rb-ink);margin-top:3px}
.btn-open{margin-top:16px;display:inline-flex;align-items:center;gap:9px;border:0;cursor:pointer;
  font-family:'Plus Jakarta Sans',sans-serif;font-weight:700;font-size:13.5px;letter-spacing:.04em;color:#fff;
  background:linear-gradient(135deg,var(--rb-terra),#DE7A54);padding:14px 26px;border-radius:100px;
  box-shadow:0 16px 30px -14px rgba(199,91,57,.85);transition:transform .25s}
.btn-open:active{transform:scale(.97)}
.btn-open svg{width:17px;height:17px}
.cover-note{font-size:10.5px;color:#9C9384;margin-top:12px}
#cover.open .cover-in{opacity:0;transform:scale(1.05);transition:opacity .65s,transform .65s}
#cover.open .cv-note,#cover.open .cv-doodle{opacity:0;transition:opacity .4s}

/* ---------------- CARD ---------------- */
.card{background:var(--rb-paper);border:1px solid var(--rb-line);border-radius:18px;padding:24px 20px;
  box-shadow:0 20px 40px -28px rgba(44,42,38,.5)}
.card+.card{margin-top:18px}

/* ---------------- SAMBUTAN ---------------- */
.salam{text-align:center;background:#fff;border:1px solid var(--rb-line);border-radius:18px;padding:26px 20px;
  box-shadow:0 20px 40px -30px rgba(44,42,38,.55);position:relative}
.salam:before{content:"";position:absolute;top:-10px;left:50%;transform:translateX(-50%) rotate(-3deg);
  width:78px;height:22px;background:rgba(227,163,58,.45)}
.salam-badge{width:50px;height:50px;margin:2px auto 13px;border-radius:14px;display:grid;place-items:center;
  color:#fff;background:linear-gradient(135deg,var(--rb-teal),#3E8F86)}
.salam-badge svg{width:24px;height:24px}
.salam-hi{font-family:'Fraunces',Georgia,serif;font-size:20px;font-weight:700;margin:0 0 11px}
.salam-text{font-size:14.5px;color:#4A463F;margin:0 0 12px}
.salam-text b{color:var(--rb-terra)}
.salam-tags{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:14px}
.salam-tags span{font-size:11px;font-weight:600;color:var(--rb-teal);background:#EAF3F0;border-radius:100px;padding:6px 12px}

/* ---------------- COUNTDOWN ---------------- */
.cd{margin-top:26px;border-radius:18px;padding:22px 16px;text-align:center;
  background:linear-gradient(160deg,#FFFDF8,#F6EADA);border:1px dashed #DEC9A6}
.cd-title{font-family:'Fraunces',Georgia,serif;font-size:14.5px;font-weight:600;margin-bottom:15px;color:#5B554B}
.cd-boxes{display:grid;grid-template-columns:repeat(4,1fr);gap:9px}
.cd-b{border-radius:12px;padding:12px 4px;background:#fff;border:1px solid var(--rb-line);
  box-shadow:0 8px 18px -14px rgba(44,42,38,.6)}
.cd-b b{display:block;font-family:'Fraunces',Georgia,serif;font-size:22px;font-weight:700;line-height:1}
.cd-b span{display:block;font-size:9.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--rb-mut);margin-top:7px}
.cd-b.b1{border-color:#F0C9B8}.cd-b.b1 b{color:var(--rb-terra)}
.cd-b.b2{border-color:#F4DDA8}.cd-b.b2 b{color:#C98A20}
.cd-b.b3{border-color:#BFDCD2}.cd-b.b3 b{color:var(--rb-teal)}
.cd-b.b4{border-color:#DCD3C4}.cd-b.b4 b{color:#6E6455}

/* ---------------- PLAKAT & LOKASI ---------------- */
.acara-plaque{text-align:center;border-radius:14px;padding:18px 14px;background:#FBF3E6;border:1px dashed #DEC9A6}
.pl-day{font-size:11.5px;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:var(--rb-terra)}
.pl-date{font-family:'Fraunces',Georgia,serif;font-size:46px;font-weight:700;line-height:1;margin:4px 0 2px}
.pl-mon{font-family:'Fraunces',Georgia,serif;font-size:14px;font-weight:600;letter-spacing:.06em;color:#5B554B}
.pl-sep{display:flex;align-items:center;justify-content:center;gap:9px;margin:11px 0}
.pl-sep span{display:block;width:34px;height:1px;background:var(--rb-line)}
.pl-sep i{width:7px;height:7px;border-radius:50%;background:var(--rb-must)}
.pl-time{font-family:'Fraunces',Georgia,serif;font-size:14px;font-weight:600;color:var(--rb-teal)}
.acara-info{margin-top:20px;text-align:center}
.aw-label{font-size:10px;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:var(--rb-mut)}
.aw-name{font-family:'Fraunces',Georgia,serif;font-size:17.5px;font-weight:700;margin:7px 0 4px}
.aw-addr{font-size:13px;color:var(--rb-mut);line-height:1.6}
.acara-dress{margin-top:16px;border-top:1px dashed var(--rb-line);padding-top:14px;font-size:10.5px;
  letter-spacing:.14em;text-transform:uppercase;color:var(--rb-mut)}
.acara-dress b{display:block;font-family:'Fraunces',Georgia,serif;font-size:14px;letter-spacing:0;
  text-transform:none;color:var(--rb-ink);margin:5px 0 4px}
.acara-dress em{display:block;font-style:normal;font-size:12px;letter-spacing:0;text-transform:none;line-height:1.6;color:#8A8276}
.acara-btns{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:18px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;text-decoration:none;
  font-size:12.5px;font-weight:700;padding:13px 12px;border-radius:12px;border:1px solid transparent;transition:transform .2s}
.btn:active{transform:scale(.98)}
.btn svg{width:16px;height:16px}
.btn.terr{background:linear-gradient(135deg,var(--rb-terra),#DE7A54);color:#fff;border:0;cursor:pointer;width:100%;
  box-shadow:0 12px 24px -14px rgba(199,91,57,.9)}
.btn.line{background:#fff;color:var(--rb-teal);border:1px solid #BFDCD2}
.acara-map{margin-top:16px;border-radius:14px;overflow:hidden;border:1px solid var(--rb-line);height:190px}
.acara-map iframe{width:100%;height:100%;border:0}
.acara-note{margin-top:14px;font-size:12.5px;color:var(--rb-mut);text-align:center;line-height:1.65}

/* ---------------- MATERI ---------------- */
.lsn{display:flex;flex-direction:column;gap:12px}
.lsn-c{background:#fff;border:1px solid var(--rb-line);border-radius:16px;padding:18px 18px 18px 20px;position:relative;
  box-shadow:0 16px 32px -28px rgba(44,42,38,.6)}
.lsn-c:before{content:"";position:absolute;left:0;top:16px;bottom:16px;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--rb-terra),var(--rb-must))}
.lsn-no{font-family:'Fraunces',Georgia,serif;font-size:12.5px;font-weight:700;letter-spacing:.14em;color:var(--rb-terra)}
.lsn-c h4{font-family:'Fraunces',Georgia,serif;font-size:16px;font-weight:700;margin:6px 0 5px}
.lsn-c p{font-size:13px;color:#5D574E;margin:0;line-height:1.65}

/* ---------------- ALUR ---------------- */
.rn{position:relative}
.rn-item{display:grid;grid-template-columns:62px 1fr;gap:14px;padding:12px 0;position:relative}
.rn-item:not(:last-child):after{content:"";position:absolute;left:71px;bottom:-2px;width:12px;height:12px;
  border-left:1px dashed var(--rb-line);border-bottom:1px dashed var(--rb-line);transform:translateY(50%) rotate(-45deg)}
.rn-time{font-family:'Fraunces',Georgia,serif;font-size:13.5px;font-weight:700;color:var(--rb-terra);
  background:#FBEDE4;border-radius:9px;padding:4px 0;text-align:center;align-self:start;margin-top:2px}
.rn-txt h4{font-family:'Fraunces',Georgia,serif;font-size:15px;font-weight:700;margin:0 0 4px}
.rn-txt p{font-size:12.5px;color:#5D574E;margin:0;line-height:1.65}

/* ---------------- GALERI ---------------- */
.gal{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.gal a.g{display:block;border-radius:12px;overflow:hidden;border:5px solid #fff;aspect-ratio:1/1;
  box-shadow:0 14px 26px -20px rgba(44,42,38,.8);transform:rotate(-.6deg)}
.gal a.g:nth-child(even){transform:rotate(.8deg)}
.gal a.g img{width:100%;height:100%;object-fit:cover}
.gal a.wide{grid-column:span 2;aspect-ratio:16/9;transform:none}
.gal a.wide img{object-position:center 45%}

/* ---------------- RSVP / BUKU TAMU ---------------- */
.rsvp-lead{font-size:13px;color:var(--rb-mut);margin:0 0 18px;text-align:center;line-height:1.7}
#rsvpForm label,#ucForm label{display:block;font-size:10.5px;font-weight:700;letter-spacing:.14em;
  text-transform:uppercase;color:var(--rb-mut);margin:14px 0 7px}
#rsvpForm input,#rsvpForm select,#ucForm input,#ucForm textarea{width:100%;padding:13px 14px;border-radius:12px;
  background:#FEFBF6;border:1px solid var(--rb-line);color:var(--rb-ink);font-family:inherit;font-size:14px}
#rsvpForm input:focus,#rsvpForm select:focus,#ucForm input:focus,#ucForm textarea:focus{outline:0;border-color:var(--rb-terra)}
#rsvpForm select{-webkit-appearance:none;appearance:none;
  background-image:linear-gradient(45deg,transparent 50%,var(--rb-terra) 50%),linear-gradient(135deg,var(--rb-terra) 50%,transparent 50%);
  background-position:calc(100% - 19px) 21px,calc(100% - 14px) 21px;background-size:5px 5px,5px 5px;background-repeat:no-repeat}
#rsvpForm .btn,#ucForm .btn{margin-top:20px}
#ucForm textarea{resize:vertical}
.ok{display:none;margin-top:16px;padding:14px;border-radius:12px;font-size:13px;text-align:center;
  background:#EAF3F0;border:1px solid #BFDCD2;color:#1E5A53}
.ok.on{display:block}
.uc-list{display:flex;flex-direction:column;gap:11px;margin-bottom:20px}
.uc{background:#fff;border:1px solid var(--rb-line);border-radius:16px;padding:15px 16px;
  box-shadow:0 14px 28px -26px rgba(44,42,38,.65)}
.uc-h{display:flex;align-items:center;gap:11px}
.uc-av{width:36px;height:36px;flex:0 0 36px;border-radius:50%;display:grid;place-items:center;
  font-family:'Fraunces',Georgia,serif;font-weight:700;font-size:15px;color:#fff;background:linear-gradient(135deg,var(--rb-terra),var(--rb-must))}
.uc-n{font-family:'Fraunces',Georgia,serif;font-size:14px;font-weight:700;line-height:1.3}
.uc-i{font-size:11px;color:var(--rb-mut)}
.uc-t{margin-left:auto;font-size:10.5px;color:#A49B8C;white-space:nowrap}
.uc-p{font-size:13.5px;color:#4A463F;margin:11px 0 0;line-height:1.7}

/* ---------------- PENUTUP ---------------- */
.closing{text-align:center;background:#fff;border:1px solid var(--rb-line);border-radius:18px;padding:26px 22px;
  box-shadow:0 20px 40px -30px rgba(44,42,38,.55)}
.closing p{font-size:14px;color:#4A463F;line-height:1.8;margin:0 0 16px}
.cl-script{font-family:'Fraunces',Georgia,serif;font-style:italic;font-size:14px;color:var(--rb-terra)}
.cl-names{font-family:'Fraunces',Georgia,serif;font-size:18px;font-weight:700;margin:8px 0 5px}
.cl-fam{font-size:12px;color:var(--rb-mut)}
.foot{margin-top:38px;text-align:center;border-top:1px solid var(--rb-line);padding-top:22px}
.foot-mark{width:42px;height:42px;margin:0 auto 11px;border-radius:12px;display:grid;place-items:center;
  font-family:'Fraunces',Georgia,serif;font-weight:700;font-size:15px;color:#fff;background:var(--rb-teal)}
.foot-txt{font-size:11.5px;color:#9C9384}
.foot-txt a{color:var(--rb-terra);text-decoration:none}

/* ---------------- LIGHTBOX ---------------- */
#lb{position:fixed;inset:0;z-index:90;display:none;align-items:center;justify-content:center;
  background:rgba(30,26,22,.93);padding:22px}
#lb.on{display:flex}
#lb img{max-width:100%;max-height:82vh;border-radius:12px;border:6px solid #fff}
.lb-x{position:absolute;top:18px;right:20px;width:42px;height:42px;border-radius:50%;cursor:pointer;
  background:rgba(255,255,255,.9);color:#3A342C;border:0;font-size:22px;line-height:1}

/* ---------------- MUSIK ---------------- */
.musik{position:fixed;right:16px;bottom:96px;z-index:70;width:46px;height:46px;border-radius:50%;cursor:pointer;
  display:grid;place-items:center;color:#fff;border:0;background:linear-gradient(135deg,var(--rb-terra),#DE7A54);
  box-shadow:0 12px 24px -10px rgba(199,91,57,.95)}
.musik svg{width:21px;height:21px}
body:not(.open) .musik{display:none}
.musik.off svg{opacity:.55}
.musik.on{animation:rbpulse 2.6s ease-in-out infinite}
@keyframes rbpulse{50%{transform:translateY(-4px)}}

/* ---------------- NAV ---------------- */
.bnav{position:fixed;left:50%;transform:translateX(-50%);bottom:14px;z-index:70;display:none;
  width:min(340px,calc(100% - 26px));padding:8px;border-radius:100px;background:rgba(255,255,255,.97);
  border:1px solid var(--rb-line);box-shadow:0 18px 36px -18px rgba(44,42,38,.5)}
body.open .bnav{display:flex;justify-content:space-between}
.bnav a{flex:1;display:flex;flex-direction:column;align-items:center;gap:4px;text-decoration:none;
  padding:7px 2px;border-radius:14px;color:#8A8276;font-size:9.5px;font-weight:600}
.bnav a svg{width:19px;height:19px}
.bnav a.on{color:var(--rb-terra);background:#FBEDE4}

@media (max-width:359px){
  #cover h1.cover-title{font-size:22px}
  .cv-note{font-size:11px}
  .gal{grid-template-columns:1fr}
  .gal a.wide{grid-column:span 1}
}
@media (min-width:700px){
  .container{max-width:640px}
  .sec{padding:74px 0}
  .gal{grid-template-columns:repeat(3,1fr)}
  .gal a.wide{grid-column:span 2}
}