@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');
[data-theme="dark"]{--bg:#0f0f14;--bg-surface:#16161d;--bg-card:#1e1e28;--bg-input:#1a1a24;--border:#2a2a3a;--text:#e8e8ef;--text-secondary:#a0a0b8;--text-muted:#6b6b80;--accent:#6366f1;--accent-subtle:rgba(99,102,241,0.12);--gradient-primary:linear-gradient(135deg,#6366f1,#8b5cf6);--glass-bg:rgba(30,30,40,0.7);--glass-border:rgba(255,255,255,0.08)}
[data-theme="light"]{--bg:#f5f5f7;--bg-surface:#fff;--bg-card:#fff;--bg-input:#f8f8fc;--border:#e0e0e8;--text:#1a1a2e;--text-muted:#8888a0;--accent:#6366f1;--glass-bg:rgba(255,255,255,0.75);--glass-border:rgba(0,0,0,0.06)}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
body{font-family:'Inter',sans-serif;background:var(--bg);color:var(--text);min-height:100vh;line-height:1.6}
.container{max-width:1100px;margin:0 auto;padding:0 1rem}
.navbar{position:sticky;top:0;z-index:200;backdrop-filter:blur(16px);background:var(--glass-bg);border-bottom:1px solid var(--glass-border);padding:.4rem 0}
.nav-inner{display:flex;align-items:center;justify-content:space-between}
.brand{font-weight:700;font-size:1.1rem;color:var(--text);text-decoration:none}
.nav-links{display:flex;gap:.5rem;align-items:center}
.glass-card{background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:12px;padding:1.25rem;backdrop-filter:blur(12px)}
.btn{display:inline-flex;align-items:center;padding:.4rem .8rem;border:none;border-radius:8px;font-weight:600;font-size:.85rem;cursor:pointer;transition:all .15s}
.btn-secondary{background:var(--bg-card);color:var(--text);border:1px solid var(--border)}
.btn-sm{padding:.3rem .6rem;font-size:.8rem}
.theme-btn{background:var(--bg-card);border:1px solid var(--border);border-radius:8px;padding:2px 8px;cursor:pointer;font-size:1rem}
.text-center{text-align:center}
.text-muted{color:var(--text-muted)}
h1{font-size:clamp(1.5rem,3vw,2rem);font-weight:700}
.gradient-text{background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
input[type="text"]{width:100%;padding:.5rem .75rem;background:var(--bg-input);color:var(--text);border:1px solid var(--border);border-radius:8px;margin-bottom:.5rem;font-size:.85rem}

.mashup-area{display:grid;grid-template-columns:1fr auto 1fr;gap:1rem;align-items:start}
@media(max-width:768px){.mashup-area{grid-template-columns:1fr}}
.pick-section{text-align:center}
.emoji-grid{display:grid;grid-template-columns:repeat(8,1fr);gap:4px;max-height:240px;overflow-y:auto;margin-bottom:.75rem;padding:4px}
.emoji-cell{font-size:1.5rem;text-align:center;cursor:pointer;padding:4px;border-radius:6px;transition:all .15s;border:2px solid transparent}
.emoji-cell:hover{background:var(--accent-subtle);transform:scale(1.2)}
.emoji-cell.selected{border-color:var(--accent);background:var(--accent-subtle)}
.selected-emoji{font-size:4rem;margin-top:.5rem;animation:bounce 0.3s ease}
@keyframes bounce{0%{transform:scale(0.8)}50%{transform:scale(1.1)}100%{transform:scale(1)}}

.result-section{display:flex;flex-direction:column;align-items:center;justify-content:center;min-width:240px}
#mashupCanvas{border-radius:16px;background:var(--bg-input);border:2px solid var(--border);margin-top:.5rem}

.history-grid{display:flex;flex-wrap:wrap;gap:.5rem;min-height:50px}
.history-item{width:60px;height:60px;border-radius:8px;border:1px solid var(--border);cursor:pointer;transition:transform .15s;overflow:hidden}
.history-item:hover{transform:scale(1.1)}
.history-item canvas{width:100%;height:100%}