:root{--col-dirt: #8B5E3C;--col-stone: #6B7280;--col-iron: #B97C4B;--col-diamond: #38BDF8;--col-obsidian: #7C3AED;--col-gold: #F59E0B;--col-amber: #FCD34D;--col-accent: #10B981;--col-danger: #EF4444;--col-ui-bg: rgba(8, 8, 20, .92);--col-ui-border: rgba(255,255,255,.12);--font-display: "Boogaloo", cursive;--font-body: "Nunito", sans-serif}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body{width:100%;height:100%;overflow:hidden;background:#050510;font-family:var(--font-body);user-select:none;-webkit-user-select:none;touch-action:none}#gameCanvas{position:fixed;top:0;right:0;bottom:0;left:0;display:block;cursor:crosshair}#ui-overlay{position:fixed;top:0;right:0;bottom:0;left:0;pointer-events:none;z-index:10}#ui-overlay *{pointer-events:auto}.screen{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;align-items:center;justify-content:center;opacity:0;transition:opacity .45s ease;pointer-events:none}.screen.active{opacity:1;pointer-events:auto}#screen-title{background:radial-gradient(ellipse at 50% 30%,#1a0a3a,#050510 70%)}.title-logo{font-family:var(--font-display);font-size:clamp(3rem,10vw,6.5rem);letter-spacing:.05em;line-height:1;text-align:center;background:linear-gradient(135deg,#fcd34d,#f59e0b 40%,#d97706,#92400e);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;text-shadow:none;filter:drop-shadow(0 0 30px rgba(245,158,11,.6));animation:logo-pulse 3s ease-in-out infinite}@keyframes logo-pulse{0%,to{filter:drop-shadow(0 0 30px rgba(245,158,11,.6))}50%{filter:drop-shadow(0 0 60px rgba(245,158,11,.9)) drop-shadow(0 0 120px rgba(245,158,11,.3))}}.title-sub{font-family:var(--font-body);font-size:clamp(.9rem,2.5vw,1.2rem);font-weight:700;letter-spacing:.3em;text-transform:uppercase;color:#94a3b8;margin-top:.5rem;margin-bottom:3rem}.title-pickaxe-anim{width:clamp(80px,18vw,130px);margin-bottom:2rem;animation:pickaxe-swing 1.4s ease-in-out infinite;transform-origin:70% 30%;filter:drop-shadow(0 0 20px rgba(245,158,11,.5))}@keyframes pickaxe-swing{0%,to{transform:rotate(-15deg)}50%{transform:rotate(15deg)}}.title-levels-preview{display:flex;gap:.5rem;margin-bottom:2.5rem}.lvl-dot{width:14px;height:14px;border-radius:50%;border:2px solid rgba(255,255,255,.3)}.btn-primary{font-family:var(--font-display);font-size:clamp(1.3rem,4vw,1.8rem);letter-spacing:.1em;padding:.8em 2.2em;border:none;border-radius:50px;cursor:pointer;background:linear-gradient(135deg,#f59e0b,#d97706);color:#1a0a00;box-shadow:0 0 0 4px #f59e0b40,0 8px 24px #0006;transition:transform .12s,box-shadow .12s;position:relative;overflow:hidden}.btn-primary:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(180deg,rgba(255,255,255,.2) 0%,transparent 60%);pointer-events:none}.btn-primary:hover{transform:translateY(-3px) scale(1.04);box-shadow:0 0 0 4px #f59e0b66,0 12px 32px #00000080}.btn-primary:active{transform:scale(.97)}.btn-secondary{font-family:var(--font-body);font-weight:800;font-size:clamp(.85rem,2vw,1rem);letter-spacing:.08em;padding:.6em 1.6em;border:2px solid rgba(255,255,255,.2);border-radius:50px;cursor:pointer;background:#ffffff12;color:#cbd5e1;margin-top:1rem;transition:all .15s}.btn-secondary:hover{background:#ffffff24;border-color:#fff6;color:#fff}#screen-howto{background:var(--col-ui-bg);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.howto-card{background:#ffffff0a;border:1px solid var(--col-ui-border);border-radius:20px;padding:2rem 2.5rem;max-width:520px;width:90%}.howto-card h2{font-family:var(--font-display);font-size:2rem;color:var(--col-amber);margin-bottom:1.2rem;text-align:center}.howto-rule{display:flex;align-items:flex-start;gap:1rem;margin-bottom:1rem;color:#cbd5e1;font-size:.95rem;line-height:1.5}.howto-rule .icon{font-size:1.5rem;flex-shrink:0;margin-top:-2px}.howto-rule strong{color:#fff}#screen-upgrade{background:radial-gradient(ellipse at 50% 50%,#0f1a2e,#050510 80%)}.upgrade-title{font-family:var(--font-display);font-size:clamp(2rem,7vw,3.5rem);color:var(--col-accent);letter-spacing:.05em;margin-bottom:.3rem;text-align:center;filter:drop-shadow(0 0 20px rgba(16,185,129,.5))}.upgrade-subtitle{color:#64748b;font-size:.9rem;font-weight:700;letter-spacing:.2em;text-transform:uppercase;margin-bottom:1.5rem}.upgrade-coins{font-family:var(--font-display);font-size:1.4rem;color:var(--col-amber);margin-bottom:1.5rem;display:flex;align-items:center;gap:.4rem}.upgrade-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem;width:min(500px,90vw);margin-bottom:1.5rem}.upgrade-card{background:#ffffff0d;border:1px solid rgba(255,255,255,.1);border-radius:16px;padding:1.1rem 1rem;cursor:pointer;transition:all .18s;position:relative;overflow:hidden}.upgrade-card:hover:not(.disabled){background:#ffffff1a;border-color:var(--col-amber);transform:translateY(-2px)}.upgrade-card.disabled{opacity:.4;cursor:not-allowed}.upgrade-card.purchased{border-color:var(--col-accent);background:#10b98114}.upgrade-card .uc-icon{font-size:2rem;margin-bottom:.4rem}.upgrade-card .uc-name{font-family:var(--font-display);font-size:1.1rem;color:#fff;margin-bottom:.2rem}.upgrade-card .uc-desc{font-size:.75rem;color:#94a3b8;margin-bottom:.6rem;line-height:1.4}.upgrade-card .uc-cost{font-weight:800;font-size:.85rem;color:var(--col-amber)}.upgrade-card .uc-purchased-badge{position:absolute;top:8px;right:8px;background:var(--col-accent);color:#fff;font-size:.65rem;font-weight:800;padding:2px 7px;border-radius:20px;letter-spacing:.05em}#screen-gameover,#screen-win{background:#050510f5}.result-title{font-family:var(--font-display);font-size:clamp(2.5rem,10vw,5rem);text-align:center;margin-bottom:.5rem}.result-title.lose{color:var(--col-danger);filter:drop-shadow(0 0 30px rgba(239,68,68,.6))}.result-title.win{color:var(--col-amber);filter:drop-shadow(0 0 30px rgba(245,158,11,.7))}.result-stats{background:#ffffff0d;border:1px solid var(--col-ui-border);border-radius:16px;padding:1.2rem 2rem;margin:1rem 0 1.5rem;min-width:260px;text-align:center}.result-stat-row{display:flex;justify-content:space-between;gap:2rem;color:#cbd5e1;font-size:.95rem;margin:.4rem 0}.result-stat-row span:last-child{color:#fff;font-weight:800}#hud{position:absolute;top:0;left:0;right:0;padding:12px 16px;display:flex;align-items:center;gap:10px;background:linear-gradient(180deg,rgba(5,5,16,.9) 0%,transparent 100%);pointer-events:none}.hud-block{display:flex;flex-direction:column;gap:3px}.hud-label{font-size:.6rem;font-weight:800;letter-spacing:.15em;text-transform:uppercase;color:#64748b}.hud-value{font-family:var(--font-display);font-size:1.1rem;color:#fff;line-height:1}.hud-sep{flex:1}.bar-container{width:100px;height:8px;background:#ffffff1a;border-radius:4px;overflow:hidden;border:1px solid rgba(255,255,255,.08)}.bar-fill{height:100%;border-radius:4px;transition:width .2s ease}.bar-fill.durability{background:linear-gradient(90deg,#ef4444,#f59e0b,#10b981)}.bar-fill.time{background:linear-gradient(90deg,#38bdf8,#7c3aed)}.level-badge{font-family:var(--font-display);font-size:.95rem;padding:4px 14px;border-radius:20px;border:1px solid;white-space:nowrap}.hud-coins{display:flex;align-items:center;gap:5px;font-family:var(--font-display);font-size:1rem;color:var(--col-amber)}#flash-container{position:absolute;top:80px;left:50%;transform:translate(-50%);display:flex;flex-direction:column;align-items:center;gap:6px;pointer-events:none;z-index:20}.flash-msg{font-family:var(--font-display);font-size:clamp(1rem,3.5vw,1.4rem);padding:6px 20px;border-radius:30px;white-space:nowrap;animation:flash-anim 1.4s forwards}@keyframes flash-anim{0%{opacity:0;transform:translateY(-10px) scale(.8)}15%{opacity:1;transform:translateY(0) scale(1.05)}30%{transform:scale(1)}70%{opacity:1}to{opacity:0;transform:translateY(-20px)}}.flash-good{background:#10b98140;border:1px solid var(--col-accent);color:#6ee7b7}.flash-bad{background:#ef444433;border:1px solid var(--col-danger);color:#fca5a5}.flash-gold{background:#f59e0b40;border:1px solid var(--col-amber);color:var(--col-amber)}.flash-info{background:#38bdf833;border:1px solid #38BDF8;color:#7dd3fc}#reaction-alert{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;pointer-events:none;z-index:15;opacity:0;transition:opacity .15s}#reaction-alert.visible{opacity:1}.reaction-inner{font-family:var(--font-display);font-size:clamp(1.8rem,6vw,3.5rem);padding:.6em 1.2em;border-radius:20px;text-align:center;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);box-shadow:0 0 60px #00000080}.reaction-inner.gem-burst{background:#38bdf826;border:2px solid #38BDF8;color:#fff;animation:reaction-pulse .3s ease}.reaction-inner.cave-in{background:#ef444426;border:2px solid var(--col-danger);color:#fff;animation:reaction-pulse .3s ease}.reaction-inner.time-bonus{background:#10b98126;border:2px solid var(--col-accent);color:#fff;animation:reaction-pulse .3s ease}@keyframes reaction-pulse{0%{transform:scale(.6)}60%{transform:scale(1.05)}to{transform:scale(1)}}.reaction-countdown{font-size:.45em;display:block;margin-top:.2em;opacity:.8}#depth-indicator{position:absolute;right:14px;top:80px;bottom:80px;width:6px;background:#ffffff0f;border-radius:3px;overflow:hidden;pointer-events:none}#depth-fill{position:absolute;bottom:0;left:0;right:0;background:linear-gradient(0deg,var(--col-obsidian),var(--col-diamond),var(--col-iron),var(--col-stone),var(--col-dirt));transition:height .4s ease;border-radius:3px}#combo-display{position:absolute;bottom:100px;left:50%;transform:translate(-50%);font-family:var(--font-display);font-size:clamp(1.2rem,4vw,2rem);color:var(--col-amber);text-shadow:0 0 20px rgba(245,158,11,.6);pointer-events:none;opacity:0;transition:opacity .3s;white-space:nowrap}#combo-display.visible{opacity:1}#btn-pause{position:absolute;bottom:16px;left:50%;transform:translate(-50%);font-family:var(--font-body);font-weight:800;font-size:.8rem;letter-spacing:.1em;text-transform:uppercase;padding:8px 24px;border:1px solid rgba(255,255,255,.15);border-radius:20px;background:#ffffff0d;color:#64748b;cursor:pointer;transition:all .15s;z-index:5}#btn-pause:hover{background:#ffffff1a;color:#94a3b8}#screen-pause{background:#050510e6;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:30}.pause-title{font-family:var(--font-display);font-size:3rem;color:#fff;margin-bottom:2rem}.underground-layer{position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none}#screen-title:after,#screen-upgrade:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");pointer-events:none;z-index:0}::-webkit-scrollbar{width:4px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#fff3;border-radius:2px}