@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;600;800&display=swap";:root{--bg-color:#092d12;--panel-bg:#ffffff0d;--panel-border:#ffffff1a;--text-primary:#f8fafc;--text-secondary:#94a3b8;--accent:#3b82f6;--accent-hover:#60a5fa}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg-color);color:var(--text-primary);background-image:radial-gradient(at 0 0,#100f15 0,#0000 50%),radial-gradient(at 50% 0,#2f3e6a33 0,#0000 50%),radial-gradient(at 100% 0,#72274133 0,#0000 50%);flex-direction:column;min-height:100vh;font-family:Inter,sans-serif;display:flex;overflow:hidden}.glass-panel{background:var(--panel-bg);-webkit-backdrop-filter:blur(12px);border:1px solid var(--panel-border);border-radius:16px;box-shadow:0 4px 30px #0000001a}.upload-container{text-align:center;flex-direction:column;justify-content:center;align-items:center;height:100vh;padding:2rem;display:flex}.upload-card{width:100%;max-width:500px;padding:3rem}.title{background:linear-gradient(135deg,#60a5fa,#c084fc);-webkit-text-fill-color:transparent;-webkit-background-clip:text;margin-bottom:.5rem;font-size:2.5rem;font-weight:800}.subtitle{color:var(--text-secondary);margin-bottom:2rem}.file-input-wrapper{margin-bottom:1.5rem;display:inline-block;position:relative;overflow:hidden}.file-input-wrapper input[type=file]{opacity:0;cursor:pointer;width:100%;height:100%;position:absolute;top:0;left:0}.btn{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:8px;align-items:center;gap:.5rem;padding:.75rem 1.5rem;font-size:1rem;font-weight:600;transition:background .2s,transform .1s;display:flex}.btn:hover{background:var(--accent-hover)}.btn:active{transform:scale(.98)}.btn:disabled{opacity:.5;cursor:not-allowed}.difficulty-select{color:#fff;border:1px solid var(--panel-border);background:#0003;border-radius:6px;outline:none;margin-left:.5rem;padding:.5rem;font-size:1rem}.game-container{flex-direction:column;height:100vh;display:flex}.game-header{z-index:10;justify-content:space-between;align-items:center;padding:1rem 2rem;display:flex}.canvas-container{flex:1;width:100%;height:100%;overflow:hidden}.clear-overlay{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:20;background:#0009;justify-content:center;align-items:center;animation:.5s ease-out forwards fadeIn;display:flex;position:absolute;inset:0}.clear-message{text-align:center;padding:3rem 4rem}.clear-title{background:linear-gradient(135deg,#fcd34d,#f59e0b);-webkit-text-fill-color:transparent;-webkit-background-clip:text;margin-bottom:1.5rem;font-size:4rem;font-weight:800}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.modal-overlay{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:50;background:#0006;justify-content:center;align-items:center;animation:.2s ease-out forwards fadeIn;display:flex;position:absolute;inset:0}.modal-content{text-align:center;flex-direction:column;gap:1.5rem;max-width:90%;padding:2rem 3rem;display:flex}.sample-thumbnails{justify-content:center;gap:1rem;margin-top:1rem;display:flex}.sample-thumbnail{object-fit:cover;cursor:pointer;border:2px solid #0000;border-radius:8px;width:60px;height:60px;transition:transform .2s,border-color .2s}.sample-thumbnail:hover{border-color:var(--accent);transform:scale(1.1)}