:root{
  --bg1:#FFFBF2;
  --bg2:#FFF0F6;
  --accent:#FF8AB8;
  --muted:#7A6EAA;
  --text:#382F49;
  --card-bg: rgba(255,255,255,0.9);
}

[data-theme="dark"] {
  --bg1:#1a1a2e;
  --bg2:#16213e;
  --accent:#e94560;
  --muted:#a8a8a8;
  --text:#ffffff;
  --card-bg: rgba(26,26,46,0.9);
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: radial-gradient(circle at 10% 10%, #FFF7F0 0%, var(--bg1) 40%, var(--bg2) 100%);
  color:var(--text);
  display:flex;
  align-items:center;
  justify-content:center;
  padding:32px;
  transition: background 0.3s, color 0.3s;
}
.page{width:100%;max-width:900px}
.header{text-align:center;margin-bottom:18px;position:relative;z-index:40}
.title{font-size:2rem;margin:0;color:#4B2A66}
[data-theme="dark"] .title{color:#ffffff}
.subtitle{margin:6px 0 0;color:var(--muted)}
.dark-mode-btn{
  position:absolute;
  top:0;
  right:0;
  background:var(--accent);
  color:white;
  border:none;
  border-radius:50%;
  width:40px;
  height:40px;
  cursor:pointer;
  font-size:18px;
  transition: background 0.3s;
}
.dark-mode-btn:hover{background:#e94560}
.card{
  background: var(--card-bg);
  border-radius:20px;
  padding:20px;
  box-shadow: 0 10px 30px rgba(80,50,120,0.08);
  display:flex;
  gap:18px;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  transition: background 0.3s;
}
.counter{flex:1;min-width:220px;text-align:center}
.days{font-weight:700;font-size:3.2rem;color:#3B1E53}
[data-theme="dark"] .days{color:#ffffff}
.label{color:var(--muted);margin-top:4px}
.target{margin-top:6px;color:#6B4D8A}
[data-theme="dark"] .target{color:#a8a8a8}
.waiting-message{flex:1;text-align:center}
.waiting-text{font-size:1.5rem;color:var(--accent);font-weight:600}
.photo-frame{flex:1;text-align:center}
.birthday-photo{
  width:150px;
  height:150px;
  border-radius:50%;
  border:4px solid var(--accent);
  object-fit:cover;
  box-shadow:0 4px 10px rgba(0,0,0,0.1);
}
.animals{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;flex:1}
.animal{font-size:36px;display:inline-block;padding:6px;transition:transform .4s ease, filter .3s;filter:drop-shadow(0 6px 10px rgba(80,50,120,0.08));}
.animal:hover{transform:translateY(-8px) scale(1.08)}

.happy{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;z-index:30}
.happy.hidden{display:none}
.happy-inner{background:linear-gradient(180deg,#fff,#fff0);padding:28px;border-radius:16px;text-align:center;box-shadow:0 20px 60px rgba(60,20,80,0.12);position:relative}
[data-theme="dark"] .happy-inner{background:linear-gradient(180deg,var(--bg1),var(--bg2))}
.happy-inner .dark-mode-btn{position:absolute;top:10px;right:10px}
.happy h2{font-size:2rem;margin:0;color:#D64191;animation:pop .8s ease both;white-space:nowrap}
[data-theme="dark"] .happy h2{color:var(--accent)}
.confetti-hint{color:var(--muted);margin-top:8px}
.big-animals{font-size:32px;margin-top:12px;display:flex;gap:12px;justify-content:center}
.birthday-photo-frame{margin-bottom:20px}
.separator{
  width:80%;
  height:2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  margin:20px auto;
  border-radius:1px;
}
.birthday-photo{
  width:150px;
  height:150px;
  border-radius:50%;
  border:4px solid var(--accent);
  object-fit:cover;
  box-shadow:0 4px 10px rgba(0,0,0,0.1), 0 0 20px rgba(255,138,184,0.3);
  transition: transform 0.3s ease;
}
.birthday-photo:hover{transform:scale(1.05)}

@keyframes pop{0%{transform:scale(.6);opacity:0}60%{transform:scale(1.06)}100%{transform:scale(1);opacity:1}}

/* confetti pieces */
.confetti{position:fixed;width:10px;height:14px;opacity:0.95;z-index:40;border-radius:2px;pointer-events:none;transform-origin:center;will-change:transform}

/* playful floating animals */
@keyframes floaty{0%{transform:translateY(0)}50%{transform:translateY(-10px)}100%{transform:translateY(0)}}
.animal{animation:floaty 4s ease-in-out infinite}

/* responsive */
@media (max-width:640px){
  body{padding:16px}
  .page{max-width:100%}
  .header{margin-bottom:12px}
  .title{font-size:1.5rem}
  .subtitle{font-size:0.9rem}
  .dark-mode-btn{width:35px;height:35px;font-size:16px;top:10px}
  .card{
    padding:12px;
    flex-direction:column;
    gap:12px;
    align-items:stretch;
  }
  .counter{min-width:auto;margin-bottom:10px}
  .days{font-size:2.2rem}
  .animal{font-size:24px}
  .separator{margin:15px auto}  .happy-inner{padding:20px}
  .happy-inner{padding:20px}
  .happy h2{font-size:1.8rem}
  .big-animals{font-size:24px}
  .happy-inner .dark-mode-btn{top:5px;right:5px;width:30px;height:30px;font-size:14px}
}