:root{
 --rose:#f4a7b9;--rose-dark:#e88aa2;--lav:#d9c8ff;--cream:#fffaf7;
 --bg:#fffaf7;--card:#ffffff;--text:#40384a;--muted:#7b7485;
 --shadow:0 10px 30px rgba(0,0,0,.08);
 --radius:24px;
}
[data-theme="dark"]{
 --bg:#17141d;--card:#25212e;--text:#f7f2ff;--muted:#b9b3c5;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,sans-serif;overflow-x:hidden}
section{padding:80px 20px;max-width:1200px;margin:auto}
.section-title{font-size:2rem;text-align:center}
.section-sub{text-align:center;color:var(--muted);margin-bottom:32px}
.reveal{opacity:0;transform:translateY(40px);transition:.8s}
.reveal.active{opacity:1;transform:none}
#theme-toggle{position:fixed;top:16px;right:16px;z-index:1000;border:none;border-radius:50%;width:56px;height:56px;cursor:pointer}
nav{position:fixed;bottom:16px;left:50%;transform:translateX(-50%);display:flex;gap:10px;background:rgba(255,255,255,.85);backdrop-filter:blur(10px);padding:12px;border-radius:999px;z-index:999}
nav a{text-decoration:none;color:inherit}
.btn,.game-btn,.pdf-btn{background:var(--rose);color:white;border:none;padding:12px 18px;border-radius:999px;text-decoration:none;cursor:pointer}
.photo-wall,.photos-grid,.reasons-grid,.poems-grid,.jokes-grid,.games-tabs,.bucket-grid{display:grid;gap:20px}
.photo-wall,.photos-grid{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.reasons-grid,.poems-grid,.jokes-grid,.bucket-grid{grid-template-columns:repeat(auto-fit,minmax(250px,1fr))}
.polaroid,.photo-frame,.reason-card,.poem-card,.joke-card,.letter-card,.game-panel,.pdf-wrapper,.memory-display,.bucket-item,.hanging-polaroid{
background:var(--card);border-radius:20px;box-shadow:var(--shadow);padding:20px
}
.reason-card,.bucket-item{cursor:pointer}
.bucket-item.done{opacity:.6;text-decoration:line-through}
.games-tabs{grid-template-columns:repeat(auto-fit,minmax(120px,1fr));margin-bottom:20px}
.game-tab{padding:12px;border:none;border-radius:12px;cursor:pointer}
.game-tab.active{background:var(--rose);color:#fff}
.game-panel{display:none}
.game-panel.active{display:block}
.match-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.match-card{aspect-ratio:1;display:flex;align-items:center;justify-content:center;background:var(--cream);font-size:2rem;border-radius:12px;cursor:pointer}
.secret-reveal{display:none}
.secret-reveal.show{display:block}
footer{padding:100px 20px;text-align:center;position:relative}
@media(min-width:768px){
 .section-title{font-size:2.6rem}
}

/* Image, video, and PDF helpers */
.hero-bg-image{background-size:cover;background-position:center;height:420px;border-radius:20px;position:relative}
.photo-img{width:100%;height:100%;object-fit:cover;border-radius:12px;display:block}
.photo-frame{overflow:hidden}
.video-wrap{display:flex;justify-content:center;padding:20px}
.pdf-wrap{max-width:900px;margin:20px auto}