:root{--font-sans:"Space Grotesk", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono:"JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;--bg-main:#0a0d14;--bg-card:#121824;--bg-card-hover:#1a2232;--bg-surface:#1e2638;--bg-glass:#121824d9;--text-main:#f8fafc;--text-muted:#94a3b8;--text-dim:#64748b;--accent-amber:#f59e0b;--accent-amber-glow:#f59e0b40;--accent-cyan:#06b6d4;--accent-cyan-glow:#06b6d440;--accent-emerald:#10b981;--accent-ruby:#f43f5e;--accent-violet:#8b5cf6;--border-subtle:#253046;--border-active:#3b82f6;--radius-sm:8px;--radius-md:14px;--radius-lg:20px;--radius-full:9999px;--shadow-card:0 8px 24px -4px #00000080;--shadow-glow:0 0 20px -2px var(--accent-amber-glow);--safe-top:env(safe-area-inset-top,0px);--safe-bottom:env(safe-area-inset-bottom,0px);--safe-left:env(safe-area-inset-left,0px);--safe-right:env(safe-area-inset-right,0px)}*,:before,:after{box-sizing:border-box;-webkit-tap-highlight-color:transparent;margin:0;padding:0}html,body{background-color:var(--bg-main);width:100%;height:100%;color:var(--text-main);font-family:var(--font-sans);-webkit-user-select:none;user-select:none;touch-action:manipulation;font-size:16px;line-height:1.5;overflow-x:hidden}#app{min-height:100vh;min-height:100dvh;padding-top:var(--safe-top);padding-bottom:var(--safe-bottom);padding-left:var(--safe-left);padding-right:var(--safe-right);flex-direction:column;display:flex}.app-header{background:var(--bg-glass);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border-subtle);z-index:50;justify-content:space-between;align-items:center;padding:12px 16px;display:flex;position:sticky;top:0}.brand{cursor:pointer;align-items:center;gap:8px;display:flex}.brand-icon{filter:drop-shadow(0 0 8px #f59e0b99);font-size:1.6rem}.brand-title{letter-spacing:-.02em;background:linear-gradient(135deg,#fbbf24 0%,#f59e0b 50%,#f97316 100%);-webkit-text-fill-color:transparent;-webkit-background-clip:text;font-size:1.25rem;font-weight:800}.header-actions{align-items:center;gap:10px;display:flex}.player-pill{background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:var(--radius-full);cursor:pointer;align-items:center;gap:8px;padding:6px 12px;font-size:.85rem;font-weight:600;transition:transform .15s,border-color .15s;display:flex}.player-pill:hover,.player-pill:active{border-color:var(--accent-amber);transform:scale(.97)}.player-pill .avatar{font-size:1.1rem}.btn-icon{border-radius:var(--radius-full);background:var(--bg-surface);border:1px solid var(--border-subtle);width:40px;height:40px;color:var(--text-main);cursor:pointer;justify-content:center;align-items:center;font-size:1.2rem;transition:all .15s;display:flex}.btn-icon:hover,.btn-icon:active{background:var(--bg-card-hover);border-color:var(--accent-cyan);transform:scale(.96)}.main-content{flex-direction:column;flex:1;width:100%;max-width:720px;margin:0 auto;padding:16px;display:flex}.bottom-nav{background:var(--bg-glass);-webkit-backdrop-filter:blur(16px);border-top:1px solid var(--border-subtle);z-index:50;justify-content:space-around;align-items:center;padding:8px 12px;display:flex;position:sticky;bottom:0}.nav-item{color:var(--text-muted);cursor:pointer;border-radius:var(--radius-md);background:0 0;border:none;flex-direction:column;align-items:center;gap:4px;padding:6px 12px;font-size:.75rem;font-weight:600;transition:all .15s;display:flex}.nav-item .icon{font-size:1.3rem}.nav-item.active{color:var(--accent-amber)}.nav-item:active{transform:scale(.92)}.btn{border-radius:var(--radius-md);cursor:pointer;border:none;justify-content:center;align-items:center;gap:8px;min-height:48px;padding:12px 20px;font-family:inherit;font-size:.95rem;font-weight:700;text-decoration:none;transition:all .18s cubic-bezier(.16,1,.3,1);display:inline-flex;box-shadow:0 4px 12px #0003}.btn:active{transform:scale(.96)}.btn-primary{color:#0f172a;box-shadow:0 4px 16px var(--accent-amber-glow);background:linear-gradient(135deg,#f59e0b 0%,#d97706 100%)}.btn-primary:hover{filter:brightness(1.1)}.btn-accent{color:#0f172a;box-shadow:0 4px 16px var(--accent-cyan-glow);background:linear-gradient(135deg,#06b6d4 0%,#0284c7 100%)}.btn-secondary{background:var(--bg-surface);color:var(--text-main);border:1px solid var(--border-subtle)}.btn-secondary:hover{background:var(--bg-card-hover);border-color:var(--text-dim)}.btn-danger{color:#fff;background:linear-gradient(135deg,#f43f5e 0%,#e11d48 100%)}.btn-sm{border-radius:var(--radius-sm);min-height:38px;padding:8px 14px;font-size:.85rem}.btn-block{width:100%}.arcade-grid{flex-direction:column;gap:16px;margin-top:12px;display:flex}.game-card{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);flex-direction:column;gap:14px;padding:18px;transition:transform .2s,border-color .2s,box-shadow .2s;display:flex;position:relative;overflow:hidden}.game-card:hover{border-color:var(--accent-amber);box-shadow:0 10px 28px -4px #f59e0b26}.game-card-header{align-items:center;gap:14px;display:flex}.game-icon-badge{border-radius:var(--radius-md);background:var(--bg-surface);border:1px solid var(--border-subtle);flex-shrink:0;justify-content:center;align-items:center;width:54px;height:54px;font-size:2rem;display:flex}.game-info{flex:1}.game-title{align-items:center;gap:8px;font-size:1.2rem;font-weight:700;display:flex}.game-tagline{color:var(--text-muted);margin-top:2px;font-size:.85rem}.game-card-actions{grid-template-columns:1fr 1fr;gap:10px;display:grid}.modal-overlay{-webkit-backdrop-filter:blur(8px);z-index:100;opacity:0;pointer-events:none;background:#000000bf;justify-content:center;align-items:center;padding:16px;transition:opacity .2s;display:flex;position:fixed;inset:0}.modal-overlay.open{opacity:1;pointer-events:auto}.modal-content{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);width:100%;max-width:480px;max-height:90vh;padding:24px;transition:transform .2s cubic-bezier(.16,1,.3,1);overflow-y:auto;transform:scale(.94);box-shadow:0 20px 40px #0009}.modal-overlay.open .modal-content{transform:scale(1)}.modal-header{justify-content:space-between;align-items:center;margin-bottom:18px;display:flex}.modal-title{font-size:1.25rem;font-weight:700}.form-group{flex-direction:column;gap:6px;margin-bottom:16px;display:flex}.form-label{color:var(--text-muted);font-size:.85rem;font-weight:600}.form-input,.form-select{background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:var(--radius-md);color:var(--text-main);outline:none;min-height:48px;padding:12px 14px;font-family:inherit;font-size:1rem;transition:border-color .15s}.form-input:focus,.form-select:focus{border-color:var(--accent-amber)}.lobby-code-box{background:var(--bg-surface);border:2px dashed var(--accent-amber);border-radius:var(--radius-md);text-align:center;margin:16px 0;padding:16px}.lobby-code{font-family:var(--font-mono);letter-spacing:.2em;color:var(--accent-amber);font-size:2.2rem;font-weight:800}.lobby-presence-list{flex-direction:column;gap:8px;margin:16px 0;display:flex}.peer-badge{background:var(--bg-surface);border-radius:var(--radius-md);border:1px solid var(--border-subtle);justify-content:space-between;align-items:center;padding:10px 14px;display:flex}.peer-status-dot{background:var(--accent-emerald);width:10px;height:10px;box-shadow:0 0 8px var(--accent-emerald);border-radius:50%}.cartridge-stage{flex-direction:column;flex:1;justify-content:center;align-items:center;width:100%;display:flex;position:relative}.game-hud{background:var(--bg-surface);border-radius:var(--radius-md);border:1px solid var(--border-subtle);justify-content:space-between;align-items:center;width:100%;margin-bottom:12px;padding:8px 12px;font-size:.9rem;font-weight:600;display:flex}.hud-player{align-items:center;gap:6px;display:flex}.hud-turn-indicator{border-radius:var(--radius-full);text-transform:uppercase;padding:4px 10px;font-size:.75rem;font-weight:800}.hud-turn-indicator.active{background:var(--accent-amber);color:#000;animation:1.5s infinite pulse}.hud-turn-indicator.waiting{background:var(--border-subtle);color:var(--text-muted)}.toast-container{bottom:calc(64px + var(--safe-bottom));z-index:200;pointer-events:none;flex-direction:column;gap:8px;width:90%;max-width:400px;display:flex;position:fixed;left:50%;transform:translate(-50%)}.toast{background:var(--bg-card);border:1px solid var(--border-subtle);border-left:4px solid var(--accent-amber);color:var(--text-main);border-radius:var(--radius-md);box-shadow:var(--shadow-card);padding:12px 16px;font-size:.9rem;font-weight:600;animation:.25s slideUp}.toast.toast-success{border-left-color:var(--accent-emerald)}.toast.toast-error{border-left-color:var(--accent-ruby)}@keyframes slideUp{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.6}}.offline-banner{color:#fff;text-align:center;background:#b91c1c;padding:6px 12px;font-size:.8rem;font-weight:700;display:none}.offline-banner.visible{display:block}