:root{--primary:#0077be;--primary-dark:#005a91;--secondary:#00a8cc;--bg:#f8fbff;--text:#2c3e50;--text-light:#7f8c8d;--white:#fff;--border:#e1effe;--card-bg:#fff;--danger:#e74c3c;--success:#27ae60;--modal-bg:#000000b3;--input-bg:#fff;--history-bg:#f4f9ff;--history-header:#e1effe;--nav-height:70px;--safe-bottom:env(safe-area-inset-bottom,0);color:var(--text);background-color:var(--bg);-webkit-tap-highlight-color:transparent;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.5}:root[data-theme=dark]{--primary:#4fc3f7;--primary-dark:#81d4fa;--secondary:#4dd0e1;--bg:#121212;--text:#e0e0e0;--text-light:#b0b0b0;--white:#1e1e1e;--border:#333;--card-bg:#1e1e1e;--danger:#ff5252;--success:#66bb6a;--modal-bg:#000000d9;--input-bg:#2d2d2d;--history-bg:#1a1a1a;--history-header:#2c2c2c}*{box-sizing:border-box;-webkit-font-smoothing:antialiased}body{padding-bottom:calc(var(--nav-height) + var(--safe-bottom));min-height:100vh;margin:0;overflow-x:hidden}#root{width:100%}main{width:100%;max-width:800px;margin:0 auto;padding:1rem}.top-nav{z-index:100;background:var(--card-bg);border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:.8rem 1.2rem;display:flex;position:sticky;top:0;box-shadow:0 2px 4px #00000005}.logo-text{color:var(--primary);letter-spacing:-.5px;font-size:1.3rem;font-weight:800}.nav-controls{align-items:center;gap:.6rem;display:flex}.user-info{background:var(--bg);border:1px solid var(--border);border-radius:20px;align-items:center;gap:.5rem;padding:.4rem .8rem;font-size:.85rem;display:flex}.bottom-nav{height:calc(var(--nav-height) + var(--safe-bottom));background:var(--card-bg);border-top:1px solid var(--border);padding-bottom:var(--safe-bottom);z-index:999;justify-content:space-around;align-items:center;display:flex;position:fixed;bottom:0;left:0;right:0}.nav-item{color:var(--text-light);flex-direction:column;flex:1;align-items:center;gap:4px;padding:.5rem;font-size:.75rem;font-weight:500;text-decoration:none;display:flex}.nav-item.active{color:var(--primary)}.nav-icon{font-size:1.4rem}.dashboard-header{margin:1rem 0 1.5rem}.dashboard-header h2{color:var(--text);margin:0;font-size:1.5rem;font-weight:700}.apartment-card,.meter-card{background:var(--card-bg);border:1px solid var(--border);border-radius:16px;margin-bottom:1rem;padding:1.2rem;transition:transform .2s;box-shadow:0 4px 12px #00000008}.apartment-card:active{transform:scale(.99)}.apt-header{justify-content:space-between;align-items:center;margin-bottom:1rem;display:flex}input,select{border:1px solid var(--border);background-color:var(--input-bg);width:100%;color:var(--text);appearance:none;border-radius:12px;padding:.8rem 1rem;font-size:1rem;transition:border-color .2s}input:focus{border-color:var(--primary);outline:none;box-shadow:0 0 0 3px #0077be1a}button{cursor:pointer;-webkit-user-select:none;user-select:none;border:none;border-radius:12px;justify-content:center;align-items:center;gap:8px;padding:.8rem 1.2rem;font-size:.95rem;font-weight:600;transition:all .2s;display:inline-flex}button:active{transform:scale(.96)}.primary-btn{background-color:var(--primary);color:#fff}.secondary-btn{background-color:var(--bg);color:var(--primary);border:1px solid var(--primary)}.small-btn{border-radius:8px;padding:.5rem .8rem;font-size:.85rem}.logout-btn{color:var(--danger);background:0 0;padding:0;font-size:.85rem}.meter-table{border-collapse:collapse;width:100%}.meter-table tr{border-bottom:1px solid var(--border);flex-direction:column;padding:1rem 0;display:flex}.meter-table tr:last-child{border-bottom:none}.meter-table td{justify-content:space-between;align-items:center;padding:.3rem 0;display:flex}.meter-table td:before{content:attr(data-label);color:var(--text-light);text-transform:uppercase;font-size:.8rem;font-weight:600}.meter-table thead{display:none}.scan-fab{bottom:calc(var(--nav-height) + var(--safe-bottom) + 1.5rem);background:var(--primary);color:#fff;z-index:900;border-radius:28px;justify-content:center;align-items:center;width:56px;height:56px;font-size:1.5rem;display:flex;position:fixed;right:1.5rem;box-shadow:0 4px 12px #0077be4d}.modal-overlay{background:var(--modal-bg);z-index:2000;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);align-items:flex-end;width:100%;height:100%;display:flex;position:fixed;top:0;left:0}.modal-content{background:var(--card-bg);width:100%;padding:1.5rem 1.5rem calc(1.5rem + var(--safe-bottom));border-radius:24px 24px 0 0;max-height:90vh;animation:.3s ease-out slideUp;overflow-y:auto}@keyframes slideUp{0%{transform:translateY(100%)}to{transform:translateY(0)}}.meter-scanner-overlay{z-index:3000;background:#000;position:fixed;inset:0}.scanner-container{flex-direction:column;height:100%;display:flex}.video-wrapper{flex:1;position:relative;overflow:hidden}.scanner-video{object-fit:cover;width:100%;height:100%}.viewfinder{border:2px solid var(--success);border-radius:8px;width:80%;height:15%;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);box-shadow:0 0 0 9999px #0009}.debug-previews{z-index:10;flex-direction:column;gap:10px;display:flex;position:absolute;top:10px;left:10px}.preview-box{background:#000000b3;border:1px solid #fff;border-radius:4px;padding:4px}.preview-box span{color:#fff;text-align:center;margin-bottom:2px;font-size:8px;display:block}.preview-box img{width:80px;height:auto;display:block}.scanner-footer{padding:1.5rem 1.5rem calc(1.5rem + var(--safe-bottom));color:#fff;text-align:center;background:#000}.inline-form{flex-direction:column;gap:.8rem;margin-top:1rem;display:flex}.empty-state{text-align:center;color:var(--text-light);padding:3rem 1rem}.empty-state-icon{opacity:.5;margin-bottom:1rem;font-size:3rem}@media (width>=600px){.modal-overlay{align-items:center}.modal-content{border-radius:24px;max-width:500px;margin:auto}.meter-table tr{flex-direction:row}.meter-table thead{display:table-header-group}.meter-table td:before{display:none}}