/* =========================================================
   TETAPAN WARNA & TULISAN  (ubah di sini kalau tak suka)
   ========================================================= */
:root{
  --bg:#f0efe8;          /* warna latar krim            */
  --navy:#16226e;        /* warna biru tua (tulisan)    */
  --navy-soft:#1f2f86;
  --font-script:"Pinyon Script", cursive;            /* tulisan cantik */
  --font-body:"Cormorant Garamond", Georgia, serif;  /* tulisan surat  */
}

*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%;background:var(--bg);color:var(--navy);font-family:var(--font-body);overflow:hidden}
img{display:block;max-width:100%}
.script{font-family:var(--font-script);font-weight:400}
a{cursor:pointer}

/* ---------- slide system ---------- */
.slide{position:fixed;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;
  opacity:0;pointer-events:none;transition:opacity .9s ease;overflow:hidden;padding:20px}
.slide.active{opacity:1;pointer-events:auto}
.deco{position:absolute;pointer-events:none}
.next{position:absolute;bottom:4vh;left:50%;transform:translateX(-50%);font-size:1.1rem;text-decoration:underline;
  letter-spacing:.5px;color:var(--navy);z-index:5;font-style:italic}

/* ================= SLIDE 1 ================= */
.for-you{font-size:clamp(2.6rem,9vw,3.6rem);margin-bottom:22px;z-index:3;transition:opacity .6s}
.hint{margin-top:26px;font-size:1rem;font-style:italic;z-index:4;position:relative}
.confetti{position:absolute;top:0;left:0;width:100%;height:auto;opacity:0;transition:opacity 1s .4s}
.balloon{position:absolute;opacity:0;transition:opacity 1s .5s, transform 1.2s .5s;z-index:1}
.b-l1{width:clamp(48px,10vw,95px);left:2%;bottom:20%;transform:translateY(80px)}
.b-l2{width:clamp(40px,8vw,80px);left:11%;bottom:12%;transform:translateY(80px)}
.b-r1{width:clamp(56px,12vw,115px);right:2%;bottom:22%;transform:translateY(80px)}
.b-r2{width:clamp(44px,9vw,90px);right:12%;bottom:11%;transform:translateY(80px)}
#s1.opened .confetti{opacity:1}
#s1.opened .balloon{opacity:1;transform:translateY(0);animation:float 5s ease-in-out 1.7s infinite alternate}
#s1.opened .b-l2,#s1.opened .b-r2{animation-duration:6s;animation-delay:2s}
#s1.opened .for-you{opacity:0}
@keyframes float{from{transform:translateY(0)}to{transform:translateY(-16px)}}

.envelope{position:relative;width:min(62vw,300px);aspect-ratio:1.5/1;cursor:pointer;z-index:2;margin-top:30px;
  filter:drop-shadow(0 6px 10px rgba(20,30,90,.25));transition:transform .8s}
.envelope>*{position:absolute}
.env-back{inset:0;background:#142680}
.env-front{inset:0;z-index:3;background:linear-gradient(160deg,#1a2f9a,#13237a);
  clip-path:polygon(0 0,50% 58%,100% 0,100% 100%,0 100%)}
.env-flap{left:0;top:0;width:100%;height:58%;z-index:4;background:#16278a;transform-origin:top center;
  clip-path:polygon(0 0,100% 0,50% 100%);transition:transform .9s ease, z-index 0s .45s}
.seal{position:absolute;left:50%;bottom:8%;width:22%;transform:translateX(-50%);transition:opacity .3s}
.env-letter{left:7%;width:86%;top:6%;height:92%;z-index:2;background:#fbf7ee;display:flex;align-items:center;justify-content:center;
  text-align:center;transition:transform .9s .55s ease;box-shadow:0 0 8px rgba(0,0,0,.15)}
.env-letter .script{font-size:clamp(1.3rem,5.6vw,1.9rem);line-height:1.25}
.envelope.open .env-flap{transform:rotateX(180deg);z-index:1}
.envelope.open .seal{opacity:0}
.envelope.open .env-letter{transform:translateY(-52%)}
.envelope.open{transform:translateY(34px)}

/* ================= SLIDE 2 : LETTER ================= */
#s2{justify-content:flex-start;overflow-y:auto;padding:28px 24px 80px}
.letter-wrap{position:relative;z-index:2;display:flex;gap:28px;max-width:980px;width:100%;margin:auto;align-items:flex-start}
.letter-text{flex:1;font-size:clamp(.95rem,2.7vw,1.15rem);line-height:1.5;font-style:italic;font-weight:500}
.letter-text .title{font-size:clamp(2.1rem,7vw,3rem);margin-bottom:14px;min-height:1.3em;font-style:normal}
.letter-text p{margin-bottom:.9em;opacity:0;transform:translateY(8px);transition:opacity .8s,transform .8s}
.letter-text p.show{opacity:1;transform:none}
.sign{margin-top:8px}
.letter-photos{position:relative;flex:0 0 38%;min-height:340px}
.polaroid{background:#fff;padding:7px 7px 26px;box-shadow:0 4px 12px rgba(0,0,0,.28);width:62%}
.polaroid img{width:100%;aspect-ratio:4/4.6;object-fit:cover}
.p1{position:absolute;top:0;left:0;transform:rotate(-3deg)}
.p2{position:absolute;top:150px;left:34%;transform:rotate(2deg)}
#s2.active .p1{animation:fadein 1s .6s backwards}
#s2.active .p2{animation:fadein 1s 1.2s backwards}
@keyframes fadein{from{opacity:0}}
.f-bl{width:clamp(150px,30vw,260px);left:-30px;bottom:-20px;opacity:.95}
.f-tr{width:clamp(130px,26vw,230px);right:-30px;top:-20px;transform:scaleX(-1) rotate(10deg)}
.star-a{width:clamp(70px,14vw,110px);right:12%;top:38%;opacity:.8}
.star-b{width:clamp(40px,8vw,60px);right:30%;top:68%;opacity:.55}
.scribble{width:clamp(130px,26vw,230px);right:6%;bottom:6%}
@media(max-width:640px){
  .letter-wrap{flex-direction:column}
  .letter-photos{flex:none;width:100%;min-height:310px;margin-top:6px}
  .polaroid{width:48%}.p2{left:40%;top:70px}
  .scribble{display:none}
}

/* ================= SLIDE 3 : SONG ================= */
.song-title{position:absolute;top:5vh;right:9vw;font-size:clamp(2rem,7vw,3rem);z-index:3}
.f-tr3{width:clamp(130px,28vw,240px);right:-24px;top:-18px;opacity:.95;transform:scaleX(-1)}
.f-bl3{width:clamp(130px,28vw,240px);left:-30px;bottom:-30px;transform:rotate(-8deg)}
.player-wrap{position:relative;z-index:2;width:min(86vw,520px);margin-top:20px}
.star-navy{width:clamp(60px,14vw,95px);left:-6%;top:-18%;z-index:3}
.player{width:100%;aspect-ratio:16/9;background:#f5a623;border:1px solid #d99a2b;box-shadow:0 6px 16px rgba(0,0,0,.3);overflow:hidden;
  display:flex;align-items:center;justify-content:center;text-align:center;color:#3b2a05;font-style:italic;padding:14px}
.player iframe{width:100%;height:100%;border:0}
.vinyl{width:clamp(70px,16vw,110px);right:10%;bottom:14%;opacity:.8;z-index:3;animation:spin 6s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* ================= SLIDE 4 : HEART ================= */
.heart-stage{position:relative;width:min(92vw,560px);padding:40px 0}
.heart-grid{position:relative;z-index:2;display:grid;grid-template-columns:repeat(5,1fr);grid-template-rows:repeat(4,1fr);gap:clamp(4px,1vw,8px);width:100%}
.cell{grid-column:var(--c);grid-row:var(--r);border:2px solid #1c2a7e;box-shadow:3px 4px 8px rgba(0,0,0,.35);background:#fff;
  aspect-ratio:1/1.05}
.cell img{width:100%;height:100%;object-fit:cover}
#s4.active .cell{animation:pop .6s cubic-bezier(.2,1.4,.4,1) backwards;animation-delay:calc(var(--i)*.18s + .3s)}
@keyframes pop{from{opacity:0;transform:scale(.3)}}
.h-tl{width:34%;left:-6%;top:6%;z-index:1;transform:rotate(-20deg)}
.h-r{width:36%;right:-10%;top:34%;z-index:1;transform:scaleX(-1) rotate(10deg)}
.h-bl{width:38%;left:-4%;bottom:4%;z-index:1;transform:rotate(-5deg)}

/* ================= SLIDE 5 : FINAL ================= */
.final{position:relative;z-index:2;display:flex;flex-direction:column;align-items:center;gap:12px}
.final-photos{position:relative;width:min(80vw,380px);height:min(72vw,340px)}
.fp1{position:absolute;left:4%;top:0;width:56%;transform:rotate(-4deg)}
.fp2{position:absolute;right:2%;top:24%;width:54%;transform:rotate(5deg)}
#s5.active .fp1{animation:drop 1s .3s cubic-bezier(.2,1.2,.4,1) backwards}
#s5.active .fp2{animation:drop2 1s .8s cubic-bezier(.2,1.2,.4,1) backwards}
@keyframes drop{from{opacity:0;transform:rotate(-4deg) translateY(-120%)}}
@keyframes drop2{from{opacity:0;transform:rotate(5deg) translateY(-120%)}}
.bouquet{position:absolute;left:-8%;bottom:-12%;width:30%;z-index:3;transform:rotate(-8deg)}
.hb{display:flex;flex-direction:column;align-items:center;line-height:1;margin-top:8px;opacity:0;transition:opacity 1.2s 1.6s}
#s5.active .hb{opacity:1}
.hb-small{font-size:clamp(1.4rem,5vw,1.8rem);font-style:italic}
.hb-big{font-size:clamp(2.8rem,10vw,4rem);margin-top:-2px}
.hb-date{margin-top:8px;font-size:.95rem;font-style:italic;letter-spacing:1px}
.f-tr5{width:clamp(130px,30vw,240px);right:-20px;top:-10px;transform:scaleX(-1)}

/* butang Next dalam slide surat: ikut aliran supaya tak tindih gambar */
@media(max-width:640px){
  #s2 .next{position:relative;left:auto;bottom:auto;transform:none;margin:24px auto 0;display:block;text-align:center;width:max-content}
  #s2{display:block}
  .letter-wrap{margin:0 auto}
}
#s1.opened .hint{margin-top:64px;transition:margin .8s}

/* =========================================================
   UPGRADE: gradient, kedalaman 3D, kilauan  (v2)
   ========================================================= */
:root{ --glow-blue:rgba(120,160,235,.35); --glow-pink:rgba(240,190,210,.35); }
html,body{
  background:
    radial-gradient(1100px 700px at 12% 8%, var(--glow-blue), transparent 60%),
    radial-gradient(900px 700px at 92% 92%, var(--glow-pink), transparent 60%),
    radial-gradient(800px 600px at 80% 15%, rgba(200,215,250,.45), transparent 60%),
    linear-gradient(160deg,#f7f5ee 0%,#ece9df 55%,#e4e6ee 100%);
  background-attachment:fixed;
}
/* tekstur kertas halus */
body::after{content:"";position:fixed;inset:0;pointer-events:none;z-index:50;opacity:.07;mix-blend-mode:multiply;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='220' height='220'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>")}
/* vignette */
body::before{content:"";position:fixed;inset:0;pointer-events:none;z-index:49;
  background:radial-gradient(ellipse at center,transparent 55%,rgba(30,40,100,.14) 100%)}

/* zarah bercahaya (bokeh) */
#bokeh{position:fixed;inset:0;overflow:hidden;pointer-events:none;z-index:0}
.bk{position:absolute;border-radius:50%;filter:blur(2px);opacity:0;animation:bk linear infinite}
@keyframes bk{0%{transform:translateY(0) scale(.8);opacity:0}15%{opacity:.7}85%{opacity:.5}100%{transform:translateY(-110vh) scale(1.2);opacity:0}}
.slide{z-index:1}

/* tajuk bergradient + bayang */
.script{background:linear-gradient(180deg,#2a3fb8 0%,#16226e 55%,#0c1550 100%);-webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;filter:drop-shadow(0 2px 3px rgba(20,30,100,.25));padding:0 .08em}
.env-letter .script{filter:none}

/* sampul 3D */
.slide#s1{perspective:1200px}
.envelope{animation:bob 4.5s ease-in-out infinite;
  filter:drop-shadow(0 18px 22px rgba(15,25,90,.38)) drop-shadow(0 4px 6px rgba(15,25,90,.3))}
@keyframes bob{50%{translate:0 -7px}}
.envelope::before{content:"";position:absolute;left:8%;right:8%;bottom:-26px;height:22px;border-radius:50%;
  background:radial-gradient(ellipse,rgba(10,20,80,.4),transparent 70%);filter:blur(5px);z-index:-1}
.env-back{background:linear-gradient(145deg,#0f1c6b,#0a1450)}
.env-front{background:linear-gradient(155deg,#2a45c4 0%,#17289a 45%,#0e1a70 100%)}
.env-front::after{content:"";position:absolute;inset:0;background:linear-gradient(115deg,rgba(255,255,255,.22) 0%,transparent 35%,transparent 70%,rgba(255,255,255,.08) 100%)}
.env-flap{background:linear-gradient(180deg,#3350d0 0%,#1a2c9c 70%,#101c78 100%)}
.seal{filter:drop-shadow(0 3px 4px rgba(0,0,0,.45))}
.env-letter{background:linear-gradient(160deg,#fffdf7,#f3ead8);box-shadow:0 2px 10px rgba(0,0,0,.2), inset 0 0 22px rgba(200,170,110,.18)}
.balloon{filter:drop-shadow(6px 10px 8px rgba(20,30,100,.25))}
.confetti{filter:drop-shadow(0 2px 2px rgba(30,40,120,.25))}

/* polaroid berkilat 3D */
.letter-photos,.final-photos,.heart-grid,.player-wrap{transform-style:preserve-3d;
  transform:perspective(900px) rotateX(var(--rx,0deg)) rotateY(var(--ry,0deg));transition:transform .25s ease-out}
.polaroid{background:linear-gradient(160deg,#fff,#f2efe6);
  box-shadow:0 2px 3px rgba(0,0,0,.18),0 12px 24px rgba(10,20,80,.3),0 28px 40px rgba(10,20,80,.18)}
.polaroid::after{content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(125deg,rgba(255,255,255,.55) 0%,rgba(255,255,255,0) 38%,rgba(255,255,255,0) 70%,rgba(255,255,255,.18) 100%)}
.polaroid img{filter:contrast(1.04) saturate(1.08)}

/* kolaj hati: kilauan kaca */
.cell{position:relative;border:2px solid #fff;outline:1.5px solid #1c2a7e;
  box-shadow:0 3px 4px rgba(0,0,0,.25),0 10px 18px rgba(10,20,80,.38)}
.cell::after{content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(135deg,rgba(255,255,255,.4),rgba(255,255,255,0) 45%)}
.cell img{filter:saturate(1.1) contrast(1.03)}

/* bunga & hiasan lebih hidup */
.deco.flowers{filter:drop-shadow(0 8px 10px rgba(20,40,110,.25));animation:sway 7s ease-in-out infinite alternate}
@keyframes sway{from{rotate:-1.5deg}to{rotate:1.5deg}}
.star,.star-navy{filter:drop-shadow(0 4px 6px rgba(30,50,140,.35));animation:twinkle 3.5s ease-in-out infinite alternate}
@keyframes twinkle{from{scale:.92;opacity:.75}to{scale:1.08;opacity:1}}
.bouquet{filter:drop-shadow(4px 8px 8px rgba(0,0,0,.3))}
.vinyl{filter:drop-shadow(0 8px 10px rgba(0,0,0,.35))}

/* pemain lagu berkilau */
.player{border:0;border-radius:10px;background:linear-gradient(135deg,#ffb938,#f08a1c);
  box-shadow:0 0 0 2px rgba(255,255,255,.7),0 18px 36px rgba(180,90,10,.35),0 0 60px rgba(255,170,60,.35)}

/* butang Next kaca */
.next{padding:9px 26px;border-radius:999px;text-decoration:none;
  background:linear-gradient(180deg,rgba(255,255,255,.75),rgba(255,255,255,.35));
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,.9);
  box-shadow:0 6px 16px rgba(20,30,100,.18);transition:transform .2s, box-shadow .2s}
.next:hover{transform:translateX(-50%) translateY(-2px);box-shadow:0 10px 22px rgba(20,30,100,.25)}
.hint{text-shadow:0 1px 0 rgba(255,255,255,.7)}

/* skrin besar / 4K: perbesarkan sedikit */
@media (min-width:1600px){ html{font-size:20px} .envelope{width:min(30vw,460px)} .heart-stage{width:min(40vw,760px)} }
@media (min-width:2400px){ html{font-size:26px} }

/* pemain fail sendiri (MP3 / MP4) */
.player video{width:100%;height:100%;object-fit:cover;background:#000}
.audio-box{width:100%;display:flex;flex-direction:column;align-items:center;gap:14px}
.audio-title{font-family:var(--font-script);font-size:clamp(1.8rem,6vw,2.6rem);color:#3b2a05;-webkit-text-fill-color:#3b2a05}
.audio-box audio{width:92%;max-width:420px}

/* =========================================================
   v3: aset sebenar (bunga PNG, kucing, vinyl)
   ========================================================= */
.deco.flowers{opacity:1}
.f-bl{width:clamp(110px,22vw,200px);left:-3%;bottom:-6%;transform:rotate(-8deg)}
.f-tr{width:clamp(100px,20vw,180px);right:-4%;top:-5%;transform:scaleX(-1) rotate(160deg)}
.f-tr3{width:clamp(100px,22vw,190px);right:-3%;top:-6%;transform:scaleX(-1) rotate(165deg)}
.f-bl3{width:clamp(110px,24vw,210px);left:-3%;bottom:-8%;transform:rotate(-6deg)}
.f-tr5{width:clamp(100px,22vw,190px);right:-3%;top:-6%;transform:scaleX(-1) rotate(165deg)}
.h-tl{width:30%;left:-8%;top:2%;z-index:1;transform:rotate(-30deg)}
.h-r{width:30%;right:-9%;top:30%;z-index:1;transform:scaleX(-1) rotate(10deg)}
.h-bl{width:32%;left:-7%;bottom:2%;z-index:1;transform:rotate(-5deg)}
.bouquet{width:30%;left:-12%;bottom:-16%;transform:rotate(-6deg);z-index:3}

/* kucing bertenggek di atas bucu kotak lagu */
.cat{width:clamp(120px,30vw,210px);left:-4%;bottom:calc(100% - 20px);top:auto;z-index:4;
  filter:drop-shadow(0 6px 8px rgba(20,30,100,.35));animation:catbob 3.2s ease-in-out infinite alternate}
@keyframes catbob{from{translate:0 0;rotate:-2deg}to{translate:0 -6px;rotate:2deg}}

/* vinyl sebenar */
.vinyl{width:clamp(90px,20vw,150px);opacity:1;right:7%;bottom:12%}

/* pautan sandaran YouTube */
.yt-fallback{display:block;text-align:center;margin-top:12px;font-size:.9rem;font-style:italic;color:var(--navy);text-decoration:underline;position:relative;z-index:5}

/* tala halus kedudukan */
.f-bl{width:clamp(130px,28vw,230px);left:-4%;bottom:-8%}
.f-bl3{width:clamp(130px,30vw,250px);left:-4%;bottom:-10%}
.f-tr{top:-13%;right:-6%;width:clamp(100px,19vw,180px)}
.f-tr3{top:-13%;right:-6%;width:clamp(110px,22vw,200px)}
.f-tr5{top:-12%;right:-5%}
.song-title{left:7vw;right:auto;top:9vh}
@media(min-width:700px){.song-title{left:auto;right:9vw;top:6vh}}
.vinyl{width:clamp(100px,22vw,170px)}

/* seimbangkan: bunga kelihatan tapi tak tutup tajuk */
.f-tr{top:-4%;right:-9%;width:clamp(100px,19vw,180px)}
.f-tr3{top:-5%;right:-9%;width:clamp(110px,22vw,200px)}
.f-tr5{top:-5%;right:-8%}
.f-bl{bottom:-3%;left:-6%}
.f-bl3{bottom:-4%;left:-6%}

/* kolaj hati: lebih besar & bunga tidak menutup gambar */
.heart-stage{width:min(92vw,660px,calc((100vh - 150px)*1.18))}
.heart-grid{gap:clamp(4px,.9vw,8px)}
.h-tl{left:-17%;top:-2%;width:30%}
.h-r{right:-19%;top:28%;width:30%}
.h-bl{left:-15%;bottom:0;width:32%}

/* tajuk "Our Memories" di slide kolaj hati */
.memories-title{position:absolute;left:6vw;top:43%;transform:translateY(-50%);z-index:3;
  font-size:clamp(2.6rem,4.8vw,5.2rem);line-height:1.05;text-align:center}
#s4.active .memories-title{animation:fadein 1.4s .2s backwards}
@media(max-width:900px){
  .memories-title{left:50%;top:3vh;transform:translateX(-50%);font-size:clamp(2.2rem,9vw,3rem);line-height:1.05;white-space:nowrap}
  .memories-title br{display:none}
}
.vinyl{animation:spin 6s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* naikkan tulisan "Happy Birthday" + tarikh supaya tak rapat dengan butang replay */
#s5{padding-bottom:clamp(90px,14vh,140px)}
.hb-date{margin-top:12px}

/* ===== WALLPAPER SETIAP PAGE ===== */
#s1{background:linear-gradient(rgba(240,239,232,.35),rgba(240,239,232,.35)),url("images/wallpaper.jpg") center/cover no-repeat}
#s2{background:linear-gradient(rgba(240,239,232,.55),rgba(240,239,232,.55)),url("images/wallpaper.jpg") center/cover no-repeat}
#s3{background:linear-gradient(rgba(240,239,232,.35),rgba(240,239,232,.35)),url("images/wallpaper.jpg") center/cover no-repeat}
#s4{background:linear-gradient(rgba(240,239,232,.35),rgba(240,239,232,.35)),url("images/wallpaper.jpg") center/cover no-repeat}
#s5{background:linear-gradient(rgba(240,239,232,.35),rgba(240,239,232,.35)),url("images/wallpaper.jpg") center/cover no-repeat}

   #bloom{position:fixed;inset:0;z-index:45;pointer-events:none;overflow:hidden;display:none}
   #bloom.on{display:block}
   .bloom-wrap{position:absolute;width:0;height:0}
   .bloom-fill{position:absolute;left:0;top:0;border-radius:50%;
     background:radial-gradient(circle,#c3d8f4 0%,#aec9ef 60%,#9dbde9 100%)}
   .bloom-wrap img{position:absolute;left:0;top:0;max-width:none;height:auto;pointer-events:none}
   .hint{transition:opacity .6s}

   /* ===== NOTA KERTAS di belakang surat (supaya tulisan jelas) ===== */
.letter-text{
  position:relative;
  background:linear-gradient(160deg,rgba(255,253,247,.95),rgba(249,244,232,.93));
  padding:clamp(18px,2.4vw,34px) clamp(18px,3vw,42px);
  border-radius:6px;
  box-shadow:0 2px 3px rgba(0,0,0,.12),0 16px 32px rgba(20,35,100,.25),
             inset 0 0 0 1px rgba(255,255,255,.8),inset 0 0 40px rgba(200,170,110,.14);
  font-size:clamp(.9rem,min(2.7vw,2.2vh),1.15rem);
  line-height:1.42;
  font-weight:600;
  color:#101a5c;
}
.letter-text::before{
  content:"";position:absolute;top:-13px;left:50%;width:120px;height:28px;
  transform:translateX(-50%) rotate(-2deg);
  background:linear-gradient(180deg,rgba(196,211,244,.8),rgba(176,196,238,.7));
  box-shadow:0 1px 3px rgba(0,0,0,.18)}
.letter-text p{margin-bottom:.75em}
.letter-text .title{margin-bottom:10px}
.letter-wrap{max-width:min(1500px,94vw)}
.letter-photos{flex:0 0 32%}
#s2{padding-top:34px;padding-bottom:120px}
@media(max-width:640px){#s2{padding-bottom:30px}}
#s2 .deco{position:fixed}

/* bunga kiri bawah (halaman surat) diletak di HADAPAN nota */
#s2 .f-bl{z-index:5;width:clamp(110px,11vw,210px);left:-3%;bottom:-3%}
@media(max-width:640px){#s2 .f-bl{z-index:0}}

/* ===== KUCING di kotak merah (kiri atas), bebas dari kotak video ===== */
.cat{left:15%;top:22%;bottom:auto;transform:translate(-50%,-50%)}
@media(max-width:640px){.cat{left:24%;top:20%}}

/* ===== GAMBAR PHOTOBOOTH 3D (kiri & kanan, halaman akhir) ===== */
.side-photo{
  --h:min(54vh,520px);
  position:absolute;top:50%;z-index:1;pointer-events:none;max-width:none;
  height:var(--h);width:calc(var(--h) * var(--ar));
  margin-top:calc(var(--h) / -2);margin-left:calc(var(--h) * var(--ar) / -2);
  transform:perspective(1100px) rotateX(calc(var(--rx,0deg) * .6))
            rotateY(calc(var(--base,0deg) + var(--ry,0deg) * .6)) rotateZ(var(--rz,0deg));
  transition:transform .3s ease-out;
  filter:drop-shadow(0 26px 22px rgba(10,20,80,.38)) drop-shadow(0 5px 7px rgba(10,20,80,.3));
}
.sp-left {--ar:0.803;left:15.6%;--base:24deg;--rz:-3deg}
.sp-right{--ar:0.407;left:81.5%;--base:-1deg;--rz:9deg}
#s5.active .sp-left {animation:sideFade 3.4s ease-out 1.8s backwards}
#s5.active .sp-right{animation:sideFade 3.4s ease-out 1.8s backwards}
@keyframes sideFade{from{opacity:0;translate:0 28px;scale:.94}}
@media(max-width:900px){
  .side-photo{--h:min(19vh,170px);margin-top:0;top:auto;bottom:10.5vh}
  .sp-left{left:21%} .sp-right{left:82%}
}

@media(min-width:901px){.sp-right{--h:calc(min(54vh,520px) * 1)}}
@media(max-width:900px){.sp-right{--h:calc(min(19vh,170px) * 1)}}