/* ============================================================
   Angkatan Kita (tema37) — undangan REUNI sekolah / kuliah
   Konsep: papan tulis (chalkboard) + buku tulis + album angkatan
   Palet: hijau papan #1B3A32 · kapur #F3EFE4 · kapur kuning #E8C15A
          biru pulpen #3A6EA5 · kertas buku #FBFAF4 · merah koreksi #C8564B
   ============================================================ */

:root{
  --board:#1B3A32; --board2:#22463C;
  --chalk:#F3EFE4; --chalk-dim:rgba(243,239,228,.72);
  --yellow:#E8C15A; --pen:#3A6EA5; --paper:#FBFAF4; --cream:#F5F1E4;
  --ink:#26332E; --red:#C8564B;
  --ff-display:'Bebas Neue',Impact,sans-serif;
  --ff-hand:'Patrick Hand','Segoe Print',cursive;
  --ff-body:'Karla',system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--ff-body);font-size:16px;line-height:1.65;overflow-x:hidden}
body.lock{overflow:hidden}
img{max-width:100%;display:block}
a{color:inherit}
h1,h2,h3,h4{margin:0;font-weight:400}
.container{width:100%;max-width:640px;margin:0 auto;padding:0 22px}
.sec{padding:64px 0;position:relative}
.sec.alt{background:var(--cream)}
.sec.board{background:var(--board);color:var(--chalk)}
.sec.board:before{content:'';position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(ellipse at 12% 18%,rgba(255,255,255,.07),transparent 55%),
    radial-gradient(ellipse at 85% 78%,rgba(255,255,255,.05),transparent 48%),
    linear-gradient(rgba(255,255,255,.022) 1px,transparent 1px);
  background-size:auto,auto,100% 3px}
.sec.board>.container{position:relative;z-index:1}

/* ---------- reveal ---------- */
.sr{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease}
.sr.in{opacity:1;transform:none}
.sr.d1{transition-delay:.08s}.sr.d2{transition-delay:.16s}.sr.d3{transition-delay:.24s}
body.flat .sr{opacity:1!important;transform:none!important}

/* ---------- heading ---------- */
.sec-head{text-align:center;margin-bottom:34px}
.sec-label{font-family:var(--ff-hand);letter-spacing:.16em;text-transform:uppercase;font-size:.82rem;color:var(--red)}
.sec-title{font-family:var(--ff-display);font-size:2.5rem;letter-spacing:.03em;line-height:1;margin:6px 0 14px;text-transform:uppercase}
.sec-line{display:flex;justify-content:center}
.sec-line i{width:74px;height:0;border-top:3px dashed var(--yellow)}
.sec.board .sec-title{color:var(--chalk)}
.sec.board .sec-label{color:var(--yellow)}

/* ---------- tombol ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;
  font-family:var(--ff-body);font-weight:700;font-size:.92rem;letter-spacing:.02em;
  padding:13px 20px;border-radius:999px;text-decoration:none;border:2px solid transparent;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease}
.btn svg{width:18px;height:18px;flex:0 0 auto}
.btn.terr{background:var(--yellow);color:#2B2410;box-shadow:0 5px 0 rgba(0,0,0,.16)}
.btn.terr:hover{transform:translateY(-2px);box-shadow:0 7px 0 rgba(0,0,0,.16)}
.btn.line{background:transparent;border-color:var(--board);color:var(--board)}
.btn.line:hover{background:var(--board);color:var(--chalk)}

/* ============================================================
   COVER — papan tulis
   ============================================================ */
#cover{background:
    radial-gradient(ellipse at 20% 15%,rgba(255,255,255,.08),transparent 50%),
    radial-gradient(ellipse at 78% 72%,rgba(255,255,255,.055),transparent 45%),
    radial-gradient(ellipse at 50% 50%,#24463C 0%,#183029 100%);
  color:var(--chalk)}
.cv-dust{position:absolute;inset:0;
  background-image:
    radial-gradient(1.4px 1.4px at 12% 22%,rgba(255,255,255,.5),transparent),
    radial-gradient(1.2px 1.2px at 42% 12%,rgba(255,255,255,.36),transparent),
    radial-gradient(1.6px 1.6px at 78% 30%,rgba(255,255,255,.42),transparent),
    radial-gradient(1.2px 1.2px at 62% 68%,rgba(255,255,255,.3),transparent),
    radial-gradient(1.4px 1.4px at 24% 78%,rgba(255,255,255,.34),transparent),
    radial-gradient(1.1px 1.1px at 88% 82%,rgba(255,255,255,.28),transparent);
  opacity:.85}
.cv-frame{position:absolute;inset:13px;border:2px solid rgba(243,239,228,.45);border-radius:6px;pointer-events:none}
.cv-frame:after{content:'';position:absolute;inset:6px;border:1px dashed rgba(243,239,228,.22);border-radius:4px}
.cv-doodle{position:absolute;width:64px;height:64px;color:rgba(243,239,228,.4)}
.cv-doodle.d1{top:26px;right:22px;transform:rotate(8deg)}
.cv-doodle.d2{bottom:26px;left:20px;transform:rotate(-6deg)}
.cover-in{position:relative;z-index:2;width:100%;max-width:420px;padding:62px 26px 34px;text-align:center;
  display:flex;flex-direction:column;align-items:center}
.cv-badge{font-family:var(--ff-hand);letter-spacing:.2em;text-transform:uppercase;font-size:.76rem;color:var(--yellow);display:flex;align-items:center;gap:9px}
.cv-badge i{width:24px;height:0;border-top:2px dashed rgba(232,193,90,.75)}
.cv-photo{position:relative;margin:20px 0 16px;padding:9px 9px 30px;background:#FBFAF4;border-radius:3px;
  box-shadow:0 14px 32px rgba(0,0,0,.34);transform:rotate(-2.4deg)}
.cv-photo img{width:206px;height:214px;object-fit:cover;filter:saturate(.92) contrast(1.03)}
.cv-photo-cap{position:absolute;left:0;right:0;bottom:8px;font-family:var(--ff-hand);font-size:.86rem;color:#6B6252}
.cv-clip{position:absolute;top:-13px;left:50%;transform:translateX(-50%);width:34px;height:22px;border-radius:4px;
  background:linear-gradient(#E3B94F,#C79A2C);box-shadow:0 3px 8px rgba(0,0,0,.3)}
.cv-clip:after{content:'';position:absolute;inset:5px 7px;border:2px solid rgba(255,255,255,.4);border-radius:3px}
.cv-chalk-line{width:150px;height:0;border-top:3px dashed rgba(243,239,228,.5);margin:6px 0 16px}
.cover-title{font-family:var(--ff-display);font-size:2.15rem;line-height:1.06;letter-spacing:.03em;text-transform:uppercase;color:var(--chalk);text-shadow:0 2px 0 rgba(0,0,0,.18)}
.cover-sub{font-family:var(--ff-hand);font-size:1.32rem;color:var(--yellow);margin-top:6px;transform:rotate(-1.4deg)}
.cover-date{margin-top:14px;font-weight:700;letter-spacing:.05em;font-size:1rem}
.cover-venue{font-size:.95rem;color:var(--chalk-dim);margin-top:2px}
.cover-to{margin-top:20px;font-size:.76rem;letter-spacing:.14em;text-transform:uppercase;color:var(--chalk-dim)}
.cover-to b{display:block;margin-top:5px;font-family:var(--ff-hand);font-size:1.34rem;letter-spacing:0;text-transform:none;color:var(--chalk)}
.btn-open{margin-top:24px;display:inline-flex;align-items:center;gap:10px;font-family:var(--ff-body);font-weight:700;font-size:.95rem;
  padding:13px 26px;border-radius:999px;border:2px solid var(--chalk);background:transparent;color:var(--chalk);cursor:pointer;
  transition:background .2s ease,color .2s ease,transform .2s ease}
.btn-open svg{width:19px;height:19px}
.btn-open:hover{background:var(--chalk);color:var(--board);transform:translateY(-2px)}
.cover-note{margin-top:16px;font-size:.7rem;color:rgba(243,239,228,.62)}
#cover.open{animation:cvOut .9s ease forwards}
@keyframes cvOut{to{opacity:0;transform:translateY(-30px) scale(.97);visibility:hidden}}

/* ============================================================
   BERANDA
   ============================================================ */
.notebook{position:relative;background:#fff;border-radius:4px;padding:30px 26px 28px 40px;
  box-shadow:0 12px 30px rgba(38,51,46,.12);
  background-image:repeating-linear-gradient(to bottom,transparent 0 33px,rgba(58,110,165,.16) 33px 34px);
  background-position:0 22px}
.nb-margin{position:absolute;top:0;bottom:0;left:26px;width:2px;background:rgba(200,86,75,.4)}
.salam-script{font-family:var(--ff-hand);font-size:1.7rem;color:var(--red);transform:rotate(-1.2deg)}
.salam-hi{font-family:var(--ff-display);font-size:1.9rem;letter-spacing:.03em;text-transform:uppercase;margin:4px 0 12px;line-height:1.1}
.salam-text{margin:0 0 12px;font-size:.95rem;line-height:1.85}
.ttd{margin-top:22px;text-align:right}
.ttd-line{height:0;border-top:2px dashed rgba(38,51,46,.28);margin-bottom:9px}
.ttd-txt{font-family:var(--ff-hand);font-size:1.12rem}
.ttd-txt b{display:block;font-size:1.28rem}

.congrats{display:flex;gap:12px;margin-top:26px}
.cg-b{flex:1;background:#fff;border:2px dashed rgba(58,110,165,.35);border-radius:10px;padding:12px 6px;text-align:center;
  font-family:var(--ff-display);font-size:1.75rem;line-height:1;color:var(--board)}
.cg-b span{display:block;font-family:var(--ff-body);font-size:.6rem;letter-spacing:.14em;text-transform:uppercase;color:#7A8A83;margin-top:5px}

.cd{margin-top:30px;background:var(--board);border-radius:16px;padding:22px 18px;color:var(--chalk);text-align:center;
  box-shadow:0 12px 26px rgba(27,58,50,.24)}
.cd-title{font-family:var(--ff-hand);font-size:1.12rem;color:var(--yellow);margin-bottom:14px}
.cd-boxes{display:flex;gap:9px;justify-content:center}
.cd-b{flex:1;background:rgba(255,255,255,.07);border:1px dashed rgba(243,239,228,.35);border-radius:10px;padding:11px 4px}
.cd-b b{display:block;font-family:var(--ff-display);font-size:1.95rem;line-height:1;letter-spacing:.04em}
.cd-b span{font-size:.6rem;letter-spacing:.14em;text-transform:uppercase;color:var(--chalk-dim)}

/* ============================================================
   DETAIL ACARA (kartu kertas di papan tulis)
   ============================================================ */
.card{background:#fff;border-radius:6px;box-shadow:0 14px 34px rgba(0,0,0,.26)}
.acara-card{padding:26px 22px 22px;position:relative}
.acara-card:before{content:'';position:absolute;top:-9px;left:50%;transform:translateX(-50%) rotate(-1.5deg);width:96px;height:20px;
  background:rgba(232,193,90,.85);border-radius:2px}
.acara-plaque{text-align:center;padding-bottom:18px;border-bottom:2px dashed rgba(58,110,165,.28)}
.pl-day{font-family:var(--ff-hand);font-size:1.18rem;color:var(--red)}
.pl-date{font-family:var(--ff-display);font-size:3.4rem;line-height:1;letter-spacing:.02em;color:var(--board)}
.pl-mon{font-family:var(--ff-display);font-size:1.4rem;letter-spacing:.14em;text-transform:uppercase;color:#5E7068}
.pl-sep{display:flex;align-items:center;justify-content:center;gap:9px;margin:12px 0 8px}
.pl-sep span{width:44px;height:0;border-top:2px dashed rgba(38,51,46,.24)}
.pl-sep i{width:8px;height:8px;background:var(--yellow);border-radius:50%;display:block}
.pl-time{font-weight:700;letter-spacing:.05em}
.acara-info{text-align:center;padding:20px 0 4px}
.aw-label{font-family:var(--ff-hand);letter-spacing:.14em;text-transform:uppercase;font-size:.78rem;color:var(--red)}
.aw-name{font-family:var(--ff-display);font-size:1.6rem;letter-spacing:.03em;text-transform:uppercase;margin-top:5px;line-height:1.15}
.aw-addr{font-size:.9rem;color:#5E7068;margin-top:3px}
.acara-dress{margin:18px auto 4px;max-width:340px;background:var(--cream);border-radius:10px;padding:12px 14px;font-size:.8rem;
  letter-spacing:.1em;text-transform:uppercase;color:#7A8A83}
.acara-dress b{display:block;font-family:var(--ff-hand);font-size:1.14rem;letter-spacing:0;text-transform:none;color:var(--ink);margin:3px 0}
.acara-dress em{font-style:normal;font-size:.74rem;letter-spacing:.02em;text-transform:none;color:#8C9A93}
.acara-btns{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:20px}
.acara-map{margin-top:20px;border-radius:8px;overflow:hidden;border:3px solid #fff;box-shadow:0 8px 20px rgba(0,0,0,.18)}
.acara-map iframe{width:100%;height:230px;border:0;display:block;filter:saturate(.92)}
.acara-note{margin-top:16px;font-size:.78rem;color:#7A8A83;text-align:center;font-style:italic}

/* ============================================================
   JADWAL (rundown ala jadwal pelajaran)
   ============================================================ */
.jd{position:relative}
.jd:before{content:'';position:absolute;left:52px;top:6px;bottom:6px;border-left:2px dashed rgba(58,110,165,.35)}
.jd-row{position:relative;display:flex;gap:16px;align-items:flex-start;padding:14px 0}
.jd-jam{flex:0 0 52px;text-align:right;font-family:var(--ff-display);font-size:1.16rem;letter-spacing:.04em;color:var(--red);padding-top:2px}
.jd-mapel{position:relative;flex:1;background:#fff;border-radius:8px;padding:14px 16px;box-shadow:0 6px 18px rgba(38,51,46,.09)}
.jd-mapel:before{content:'';position:absolute;left:-8px;top:20px;width:12px;height:12px;background:#fff;transform:rotate(45deg);
  box-shadow:-3px 3px 6px rgba(38,51,46,.06)}
.jd-mapel h4{font-family:var(--ff-display);font-size:1.24rem;letter-spacing:.03em;text-transform:uppercase;color:var(--board)}
.jd-mapel p{margin:3px 0 0;font-size:.88rem;color:#63736C}

/* ============================================================
   GALERI (album angkatan)
   ============================================================ */
.gal{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.gal a.g{display:block;position:relative;background:#fff;padding:7px 7px 26px;border-radius:3px;
  box-shadow:0 10px 22px rgba(38,51,46,.16);transform:rotate(-1.1deg);transition:transform .22s ease}
.gal a.g:nth-child(even){transform:rotate(1.3deg)}
.gal a.g:hover{transform:rotate(0) translateY(-4px)}
.gal a.g img{width:100%;height:150px;object-fit:cover;filter:saturate(.94)}
.gal a.g:after{content:'✦';position:absolute;bottom:5px;right:12px;font-size:.78rem;color:#B4A98F}
.gal a.wide{grid-column:1 / -1;transform:rotate(.6deg)}
.gal a.wide img{height:190px}

/* ============================================================
   PAPAN KENANGAN (sticky notes)
   ============================================================ */
.notes{display:flex;flex-direction:column;gap:16px}
.note{position:relative;padding:20px 20px 16px;border-radius:3px;box-shadow:0 8px 18px rgba(38,51,46,.14)}
.note:before{content:'';position:absolute;top:-8px;left:24px;width:64px;height:18px;background:rgba(255,255,255,.62);
  border-left:1px dashed rgba(0,0,0,.12);border-right:1px dashed rgba(0,0,0,.12)}
.note p{margin:0 0 8px;font-family:var(--ff-hand);font-size:1.14rem;line-height:1.5;color:#2F3A34}
.note span{font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:#7A8A83}
.note.n1{background:#FDF0B8;transform:rotate(-1.2deg)}
.note.n2{background:#CFE7F5;transform:rotate(1deg)}
.note.n3{background:#F7D2CB;transform:rotate(-.7deg)}
.quote{margin-top:30px;text-align:center;padding:24px 18px;border-top:3px dashed var(--yellow);border-bottom:3px dashed var(--yellow)}
.quote p{margin:0 0 10px;font-family:var(--ff-hand);font-size:1.22rem;line-height:1.6;color:var(--board)}
.quote span{font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:#8C9A93}

/* ============================================================
   DAFTAR HADIR (form)
   ============================================================ */
.rsvp-card{padding:26px 22px}
.rsvp-lead{margin:0 0 18px;font-size:.9rem;color:#63736C}
.rsvp-card form{display:flex;flex-direction:column;gap:6px}
.rsvp-card label,.uc-form label{font-family:var(--ff-hand);font-size:1.04rem;color:var(--red);margin-top:8px}
.rsvp-card input,.rsvp-card select,.uc-form input,.uc-form textarea{
  width:100%;padding:12px 14px;border:2px solid rgba(58,110,165,.28);border-radius:9px;background:#FDFDFB;
  font-family:var(--ff-body);font-size:.95rem;color:var(--ink);outline:none;transition:border-color .18s ease}
.rsvp-card input:focus,.rsvp-card select:focus,.uc-form input:focus,.uc-form textarea:focus{border-color:var(--pen)}
.rsvp-card button,.uc-form button{margin-top:16px;align-self:flex-start}
.ok{display:none;margin-top:16px;padding:14px 16px;border-radius:10px;background:var(--board);color:var(--chalk);
  font-family:var(--ff-hand);font-size:1.06rem;text-align:center}
.ok.on,.ok.show{display:block}

/* ============================================================
   UCAPAN
   ============================================================ */
.uc-list{display:flex;flex-direction:column;gap:12px;margin-bottom:22px}
.uc{background:#fff;border-left:4px solid var(--yellow);border-radius:0 10px 10px 0;padding:14px 16px;box-shadow:0 6px 16px rgba(38,51,46,.08)}
.uc-h{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.uc-av{width:34px;height:34px;flex:0 0 auto;border-radius:50%;background:var(--board);color:var(--chalk);display:flex;align-items:center;
  justify-content:center;font-family:var(--ff-display);font-size:1.1rem}
.uc-n{font-weight:700;font-size:.95rem}
.uc-i{font-weight:400;font-size:.82rem;color:#7A8A83}
.uc-t{margin-left:auto;font-size:.72rem;color:#9AA8A1}
.uc-p{margin:8px 0 0;font-family:var(--ff-hand);font-size:1.1rem;line-height:1.55;color:#33403A}
.uc-form{padding:24px 22px;display:flex;flex-direction:column}

/* ============================================================
   PENUTUP (papan tulis)
   ============================================================ */
#penutup{background:var(--board);color:var(--chalk)}
#penutup:before{content:'';position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(ellipse at 70% 20%,rgba(255,255,255,.06),transparent 55%)}
#penutup>.container{position:relative;z-index:1}
.closing{text-align:center;padding:8px 0 26px}
.closing p{margin:0 0 20px;font-size:.95rem;line-height:1.9;color:var(--chalk-dim)}
.cl-script{font-family:var(--ff-hand);font-size:1.3rem;color:var(--yellow)}
.cl-names{font-family:var(--ff-display);font-size:1.85rem;letter-spacing:.04em;text-transform:uppercase;margin-top:6px}
.cl-fam{font-size:.8rem;letter-spacing:.12em;text-transform:uppercase;color:rgba(243,239,228,.55);margin-top:8px}
.foot{margin-top:26px;padding-top:22px;border-top:2px dashed rgba(243,239,228,.28);text-align:center}
.foot-mark{font-family:var(--ff-display);font-size:2.1rem;letter-spacing:.1em;color:rgba(243,239,228,.24)}
.foot-txt{margin-top:6px;font-size:.74rem;color:rgba(243,239,228,.6)}
.foot-txt a{color:var(--yellow);text-decoration:none}

/* ============================================================
   LIGHTBOX · MUSIK · NAV
   ============================================================ */
#lb{position:fixed;inset:0;z-index:90;background:rgba(12,24,20,.94);display:none;align-items:center;justify-content:center;padding:24px}
#lb.on{display:flex}
#lb img{max-width:100%;max-height:86vh;border-radius:4px}
.lb-x{position:absolute;top:16px;right:20px;background:none;border:0;color:#F3EFE4;font-size:2.2rem;line-height:1;cursor:pointer}
.musik{position:fixed;right:18px;bottom:86px;z-index:55;width:48px;height:48px;border-radius:50%;border:0;cursor:pointer;
  background:var(--board);color:var(--chalk);box-shadow:0 8px 20px rgba(0,0,0,.3);display:flex;align-items:center;justify-content:center;
  transition:opacity .3s ease,transform .3s ease}
.musik svg{width:22px;height:22px}
.musik.on svg{animation:spin 3.4s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
body:not(.open) .musik,body:not(.open) .bnav{opacity:0;visibility:hidden}
.bnav{position:fixed;left:50%;transform:translateX(-50%);bottom:14px;z-index:56;display:flex;gap:4px;
  background:var(--board);border-radius:999px;padding:7px 9px;box-shadow:0 12px 28px rgba(0,0,0,.34);transition:opacity .3s ease}
.bnav a{display:flex;flex-direction:column;align-items:center;gap:3px;min-width:56px;padding:5px 6px;border-radius:999px;
  color:rgba(243,239,228,.72);text-decoration:none;font-size:.62rem;letter-spacing:.04em}
.bnav a svg{width:19px;height:19px}
.bnav a.on{background:rgba(232,193,90,.18);color:var(--yellow)}

/* ============================================================
   RESPONSIF
   ============================================================ */
@media (max-width:420px){
  .sec{padding:52px 0}
  .sec-title{font-size:2.05rem}
  .cover-title{font-size:1.72rem}
  .cover-in{padding:52px 20px 28px}
  .cv-photo img{width:184px;height:190px}
  .pl-date{font-size:2.9rem}
  .gal a.g img{height:124px}
  .gal a.wide img{height:168px}
  .cd-b b{font-size:1.6rem}
  .jd:before{left:44px}
  .jd-jam{flex:0 0 44px;font-size:1.04rem}
  .bnav a{min-width:50px;font-size:.58rem}
  .musik{bottom:78px;right:14px;width:44px;height:44px}
}
@media (prefers-reduced-motion:reduce){
  .sr{opacity:1;transform:none}
  .musik.on svg{animation:none}
}