:root{--bg-primary: #f2f2f7;--bg-secondary: #ffffff;--bg-tertiary: #e5e5ea;--accent-blue: #007aff;--accent-blue-light: #5ac8fa;--accent-green: #34c759;--accent-orange: #ff9500;--accent-red: #ff3b30;--accent-purple: #af52de;--text-primary: #1c1c1e;--text-secondary: #8e8e93;--text-muted: #c7c7cc;--border-color: rgba(60,60,67,.1);--shadow-sm: 0 1px 3px rgba(0,0,0,.04), 0 1px 2px rgba(0,0,0,.06);--shadow-md: 0 4px 6px rgba(0,0,0,.04), 0 2px 4px rgba(0,0,0,.06);--shadow-lg: 0 10px 25px rgba(0,0,0,.06), 0 4px 10px rgba(0,0,0,.04);--radius: 16px;--radius-sm: 12px;--radius-xs: 8px;--sidebar-width: 280px;--transition: all .3s cubic-bezier(.4, 0, .2, 1)}@media (prefers-color-scheme: dark){:root{--bg-primary: #000000;--bg-secondary: #1c1c1e;--bg-tertiary: #2c2c2e;--text-primary: #ffffff;--text-secondary: #8e8e93;--text-muted: #48484a;--border-color: rgba(255,255,255,.1)}}*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}body{font-family:Inter,-apple-system,BlinkMacSystemFont,SF Pro Display,sans-serif;background:var(--bg-primary);color:var(--text-primary);min-height:100vh;min-height:100dvh;overflow-x:hidden;-webkit-font-smoothing:antialiased}.app{display:flex;min-height:100vh;min-height:100dvh}.sidebar{display:none;width:var(--sidebar-width);background:var(--bg-secondary);border-right:1px solid var(--border-color);padding:24px 16px;flex-direction:column;position:fixed;left:0;top:0;bottom:0;z-index:100;overflow-y:auto}@media (min-width: 768px){.sidebar{display:flex}.main-content{margin-left:var(--sidebar-width)}.bottom-nav{display:none!important}.header{left:var(--sidebar-width)!important}}.main-content{flex:1;padding-top:80px;padding-bottom:100px;min-height:100vh}@media (min-width: 768px){.main-content{padding-bottom:24px}}.header{position:fixed;top:0;left:0;right:0;height:70px;background:var(--bg-secondary);border-bottom:1px solid var(--border-color);display:flex;align-items:center;justify-content:space-between;padding:0 20px;z-index:90;box-shadow:var(--shadow-sm)}.bottom-nav{position:fixed;bottom:0;left:0;right:0;height:85px;background:var(--bg-secondary);border-top:1px solid var(--border-color);display:flex;justify-content:space-around;align-items:flex-start;padding-top:10px;z-index:90;box-shadow:0 -2px 10px #0000000d}.nav-item{display:flex;flex-direction:column;align-items:center;gap:4px;color:var(--text-secondary);text-decoration:none;font-size:10px;font-weight:500;padding:8px 16px;border-radius:var(--radius-sm);transition:var(--transition);background:none;border:none;cursor:pointer}.nav-item.active{color:var(--accent-blue)}.card{background:var(--bg-secondary);border-radius:var(--radius);padding:20px;margin-bottom:16px;box-shadow:var(--shadow-sm);border:1px solid var(--border-color);transition:var(--transition)}.card:hover{box-shadow:var(--shadow-md)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 24px;border-radius:var(--radius-sm);font-size:1rem;font-weight:600;cursor:pointer;transition:var(--transition);border:none;font-family:inherit}.btn-primary{background:var(--accent-blue);color:#fff}.btn-primary:hover{background:#0066d6;transform:translateY(-1px)}.btn-secondary{background:var(--bg-tertiary);color:var(--text-primary)}.btn-secondary:hover{background:#d1d1d6}.btn-danger{background:var(--accent-red);color:#fff}.btn-success{background:var(--accent-green);color:#fff}.form-group{margin-bottom:20px}.form-group label{display:block;font-size:.9rem;font-weight:600;color:var(--text-secondary);margin-bottom:8px}.form-group input[type=checkbox],.form-group input[type=radio]{width:auto;padding:0;margin:0;accent-color:var(--accent-blue);cursor:pointer}.form-group input:not([type=checkbox]):not([type=radio]):not([type=file]),.form-group select,.form-group textarea{width:100%;padding:14px 16px;background:var(--bg-primary);border:1px solid var(--border-color);border-radius:var(--radius-sm);color:var(--text-primary);font-size:1rem;font-family:inherit;transition:var(--transition)}.form-group input:not([type=checkbox]):not([type=radio]):not([type=file]):focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--accent-blue);box-shadow:0 0 0 4px #007aff1a}.form-group textarea{resize:vertical;min-height:100px}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;display:flex;align-items:flex-end;justify-content:center;z-index:1000;padding:0;opacity:0;visibility:hidden;transition:var(--transition)}.modal-overlay.active{opacity:1;visibility:visible}@media (min-width: 768px){.modal-overlay{align-items:center;padding:20px}}.modal{background:var(--bg-secondary);border-radius:var(--radius) var(--radius) 0 0;width:100%;max-height:90vh;overflow-y:auto;transform:translateY(100%);transition:var(--transition)}.modal-overlay.active .modal{transform:translateY(0)}@media (min-width: 768px){.modal{border-radius:var(--radius);max-width:500px;max-height:85vh;transform:scale(.9);opacity:0}.modal-overlay.active .modal{transform:scale(1);opacity:1}}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:20px;border-bottom:1px solid var(--border-color);position:sticky;top:0;background:var(--bg-secondary);z-index:10}.modal-title{font-size:1.25rem;font-weight:700}.modal-close{background:var(--bg-tertiary);border:none;width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:var(--transition)}.modal-close:hover{background:var(--accent-red);color:#fff}.modal-body{padding:20px}.badge{display:inline-flex;align-items:center;padding:4px 10px;border-radius:20px;font-size:.75rem;font-weight:600}.badge-pending{background:#ff950026;color:var(--accent-orange)}.badge-solved{background:#34c75926;color:var(--accent-green)}.empty-state{text-align:center;padding:60px 20px;color:var(--text-secondary)}.empty-state svg{margin-bottom:16px;opacity:.5}.view{padding:20px;max-width:1200px;margin:0 auto}.stats-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-bottom:24px}@media (min-width: 768px){.stats-grid{grid-template-columns:repeat(4,1fr)}}.stat-card{background:var(--bg-secondary);border-radius:var(--radius);padding:20px;text-align:center;box-shadow:var(--shadow-sm);border:1px solid var(--border-color)}.stat-value{font-size:2rem;font-weight:700;color:var(--accent-blue)}.stat-label{font-size:.85rem;color:var(--text-secondary);margin-top:4px}.logo{display:flex;align-items:center;gap:12px;margin-bottom:32px}.logo-icon{width:48px;height:48px}.logo-text h1{font-size:1.5rem;font-weight:700;color:var(--accent-blue)}.logo-text p{font-size:.7rem;color:var(--text-secondary)}.sidebar-nav{flex:1}.sidebar-item{display:flex;align-items:center;gap:12px;padding:14px 16px;border-radius:var(--radius-sm);color:var(--text-secondary);text-decoration:none;font-weight:500;transition:var(--transition);margin-bottom:4px;background:none;border:none;width:100%;cursor:pointer;font-size:1rem;font-family:inherit}.sidebar-item:hover{background:var(--bg-tertiary);color:var(--text-primary)}.sidebar-item.active{background:#007aff1a;color:var(--accent-blue)}.user-info{display:flex;align-items:center;gap:12px;padding:16px;background:var(--bg-tertiary);border-radius:var(--radius-sm);margin-top:auto}.user-avatar{width:44px;height:44px;background:linear-gradient(135deg,var(--accent-blue),var(--accent-purple));border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:1.1rem}.user-details h4{font-size:.95rem;font-weight:600}.user-details p{font-size:.8rem;color:var(--text-secondary)}.fab{position:fixed;bottom:100px;right:20px;width:56px;height:56px;background:var(--accent-blue);color:#fff;border:none;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:var(--shadow-lg);transition:var(--transition);z-index:80}.fab:hover{transform:scale(1.1)}@media (min-width: 768px){.fab{bottom:30px;right:30px}}.login-container{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px;background:var(--bg-primary)}.login-card{background:var(--bg-secondary);border-radius:var(--radius);padding:40px;width:100%;max-width:400px;box-shadow:var(--shadow-lg)}.login-logo{text-align:center;margin-bottom:32px}.login-logo svg{width:80px;height:80px;margin-bottom:16px}.login-logo h1{font-size:1.75rem;color:var(--accent-blue)}.login-logo p{color:var(--text-secondary);font-size:.9rem}.divider{height:1px;background:var(--border-color);margin:24px 0}.list-item{display:flex;align-items:center;justify-content:space-between;padding:16px;background:var(--bg-secondary);border-radius:var(--radius-sm);margin-bottom:8px;border:1px solid var(--border-color);cursor:pointer;transition:var(--transition)}.list-item:hover{background:var(--bg-tertiary)}.footer{position:fixed;bottom:8px;left:8px;font-size:.7rem;opacity:.5}.footer a{color:var(--text-secondary);text-decoration:none}.loading{display:flex;align-items:center;justify-content:center;padding:40px}.spinner{width:40px;height:40px;border:3px solid var(--border-color);border-top-color:var(--accent-blue);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.floors-container{background:var(--bg-primary);border-radius:var(--radius-sm);padding:12px;margin-top:12px}.floor-item{background:var(--bg-secondary);border-radius:var(--radius-xs);padding:12px;margin-bottom:8px;border:1px solid var(--border-color)}.floor-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}.floor-name{font-weight:600}.units-list{display:flex;flex-wrap:wrap;gap:6px}.unit-tag{background:var(--bg-tertiary);padding:4px 10px;border-radius:20px;font-size:.8rem;display:flex;align-items:center;gap:4px}.hidden{display:none!important}