@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap");*{box-sizing:border-box;margin:0;padding:0}body,html{width:100%;height:100%;overflow:hidden;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:#0a0e27;color:#fff;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.game-container{width:100vw;height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:flex-start;position:relative;overflow:hidden;padding:24px;transition:background .8s ease}.game-topbar{width:min(1100px,100%);display:grid;grid-template-columns:1fr auto 1fr;grid-gap:16px;gap:16px;align-items:center;z-index:10;margin-bottom:20px}.brand{display:flex;flex-direction:column;gap:4px}.brand-title{font-size:24px;font-weight:700;letter-spacing:.5px;color:#fff;line-height:1.2}.brand-subtitle{font-size:12px;font-weight:500;letter-spacing:1px;color:#64b5ff;text-transform:uppercase}.hud{display:flex;gap:12px;justify-content:center}.hud-box{background:rgba(15,26,58,.8);border:1px solid rgba(0,178,255,.3);border-radius:8px;padding:12px 16px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);min-width:100px;text-align:center}.top-actions{display:flex;gap:10px;justify-content:flex-end}.game-stage{width:min(1100px,100%);display:flex;flex-direction:column;align-items:center;gap:16px;z-index:10}.bottom-panel{width:100%;background:rgba(15,26,58,.8);border:1px solid rgba(0,178,255,.3);border-radius:12px;box-shadow:0 4px 24px rgba(0,0,0,.3);padding:16px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.bottom-hint{font-size:13px;font-weight:500;color:hsla(0,0%,100%,.7);margin-bottom:12px;text-align:center;line-height:1.5}.blocks-container-row{display:flex;gap:16px;justify-content:center;align-items:center;flex-wrap:wrap}.stat-label{font-size:11px;font-weight:600;color:hsla(0,0%,100%,.6);margin-bottom:4px;text-transform:uppercase;letter-spacing:.5px}.stat-value{font-size:20px;font-weight:700;color:#fff;line-height:1.2}.combo-text{color:#fff!important}.game-board-container{position:relative;background:rgba(15,26,58,.6);border:2px solid rgba(0,178,255,.4);border-radius:12px;box-shadow:0 8px 32px rgba(0,0,0,.4);padding:16px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.game-board{flex-direction:column;background:rgba(10,14,39,.8);border-radius:8px;overflow:hidden}.board-row,.game-board{display:flex}.board-cell{width:50px;height:50px;border:1px solid rgba(0,178,255,.15);background:rgba(15,26,58,.4);transition:all .15s ease;cursor:pointer}.board-cell:hover{background:rgba(0,178,255,.1);border-color:rgba(0,178,255,.4)}.board-cell.filled{border:2px solid hsla(0,0%,100%,.3);box-shadow:0 0 8px currentColor,inset 0 0 8px hsla(0,0%,100%,.2);position:relative;z-index:2}.board-cell.preview{border:2px dashed #fff;background:hsla(0,0%,100%,.15);box-shadow:0 0 12px hsla(0,0%,100%,.4);position:relative;z-index:1}.game-board{position:relative}.board-cell.clearing{animation:lineClear .5s ease-out}@keyframes lineClear{0%{transform:scale(1);opacity:1}50%{transform:scale(1.2);opacity:.8}to{transform:scale(0);opacity:0}}.score-animation{position:absolute;font-size:24px;font-weight:700;color:#fff;text-shadow:0 0 10px rgba(0,82,255,.8),0 0 20px hsla(0,0%,100%,.6);pointer-events:none;z-index:200;animation:scorePop 1s ease-out forwards;transform:translate(-50%,-50%)}@keyframes scorePop{0%{opacity:1;transform:translate(-50%,-50%) scale(.5)}50%{opacity:1;transform:translate(-50%,-100%) scale(1.2)}to{opacity:0;transform:translate(-50%,-150%) scale(1)}}.retro-button{font-family:Inter,sans-serif;font-size:13px;font-weight:600;padding:10px 20px;color:#fff;border:none;border-radius:8px;cursor:pointer;text-transform:uppercase;letter-spacing:.5px;transition:all .3s ease;box-shadow:0 4px 12px rgba(0,0,0,.3)}.retro-button:hover{box-shadow:0 6px 20px rgba(0,0,0,.4);transform:translateY(-1px);filter:brightness(1.1)}.retro-button:active{transform:translateY(0);box-shadow:0 2px 8px rgba(0,82,255,.3)}.retro-button:disabled{opacity:.5;cursor:not-allowed;transform:none}.music-button{min-width:50px;padding:10px;font-size:18px}.block-preview{display:inline-flex;flex-direction:column;gap:2px;padding:12px;background:rgba(15,26,58,.6);border:2px solid rgba(0,178,255,.3);border-radius:8px;cursor:-webkit-grab;cursor:grab;transition:all .2s ease;-webkit-user-select:none;-moz-user-select:none;user-select:none;-webkit-user-drag:element;-webkit-touch-callout:none;touch-action:none}.block-preview:active{cursor:-webkit-grabbing;cursor:grabbing}.block-preview.dragging{opacity:.6;transform:scale(.95)}.block-preview[draggable=true]{cursor:-webkit-grab;cursor:grab}.block-preview[draggable=true]:active{cursor:-webkit-grabbing;cursor:grabbing}.block-preview:hover{border-color:rgba(0,178,255,.6);box-shadow:0 4px 16px rgba(0,178,255,.2);transform:translateY(-2px)}.block-preview.selected{border-color:#fff;box-shadow:0 0 20px hsla(0,0%,100%,.4);background:hsla(0,0%,100%,.1)}.block-row{display:flex;gap:2px}.block-cell{width:20px;height:20px;border:1px solid hsla(0,0%,100%,.1);background:transparent;border-radius:2px}.block-cell.filled{border:1px solid hsla(0,0%,100%,.3);box-shadow:0 0 4px currentColor,inset 0 0 4px hsla(0,0%,100%,.2)}.game-over{position:absolute;top:0;left:0;width:100%;height:100%;background:rgba(10,14,39,.95);display:flex;flex-direction:column;align-items:center;justify-content:center;z-index:100;border-radius:12px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.game-over-text{font-size:36px;font-weight:700;color:#fff;margin-bottom:16px;text-align:center}.game-over-score{font-size:18px;font-weight:600;color:hsla(0,0%,100%,.8);margin-bottom:24px}.modal-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.7);display:flex;align-items:center;justify-content:center;z-index:1000;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.modal{background:rgba(15,26,58,.95);border:1px solid rgba(0,178,255,.4);border-radius:16px;width:min(600px,90vw);max-height:90vh;overflow-y:auto;box-shadow:0 20px 60px rgba(0,0,0,.5);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px)}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:20px 24px;border-bottom:1px solid rgba(0,178,255,.2)}.modal-title{font-size:18px;font-weight:700;color:#fff;text-transform:uppercase;letter-spacing:.5px}.modal-close{background:none;border:none;color:hsla(0,0%,100%,.7);font-size:24px;cursor:pointer;padding:0;width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:6px;transition:all .2s ease}.modal-close:hover{background:hsla(0,0%,100%,.1);color:#fff}.modal-body{padding:24px}.modal-section{margin-bottom:24px}.modal-section:last-child{margin-bottom:0}.instruction-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:12px;text-transform:uppercase;letter-spacing:.5px}.instruction-item{font-size:13px;color:hsla(0,0%,100%,.8);margin-bottom:8px;line-height:1.6}.leaderboard-list{max-height:300px;overflow-y:auto;padding-right:8px}.leaderboard-list::-webkit-scrollbar{width:6px}.leaderboard-list::-webkit-scrollbar-track{background:rgba(0,0,0,.2);border-radius:3px}.leaderboard-list::-webkit-scrollbar-thumb{background:rgba(0,178,255,.4);border-radius:3px}.leaderboard-list::-webkit-scrollbar-thumb:hover{background:rgba(0,178,255,.6)}.retro-input{width:100%;padding:12px 16px;background:rgba(10,14,39,.8);border:1px solid rgba(0,178,255,.3);border-radius:8px;color:#fff;font-size:13px;font-family:Inter,sans-serif;transition:all .2s ease;margin-bottom:12px}.retro-input:focus{outline:none;border-color:rgba(0,178,255,.6);box-shadow:0 0 0 3px rgba(0,178,255,.1)}.retro-input::placeholder{color:hsla(0,0%,100%,.4)}@media (max-width:1024px){.game-topbar{grid-template-columns:1fr;gap:12px}.brand{text-align:center}.hud,.top-actions{justify-content:center}.board-cell{width:40px;height:40px}}@media (max-width:768px){.board-cell{width:30px;height:30px}.brand-title{font-size:20px}.stat-value{font-size:18px}}